JP6640588B2 - Drainage system and hot water storage system provided with the drainage system - Google Patents

Description

  The present invention includes an inflow port into which water flows, a storage section in which the water flowing in from the inflow port is stored, and an outflow port in which the water flowing in from the inflow port flows out, and a water detection means for detecting the water stored in the storage section. The present invention relates to a hot water storage system provided with the drainage equipment and a hot water storage system provided with the drainage equipment.

  A hot water storage type hot water system is a system for obtaining hot water by heating supply water with heat supplied from a heat source device (gas engine, fuel cell, etc.), and includes a hot water storage tank for storing generated hot water. Dispense the hot water and use it appropriately for hot water supply, heating, reheating of bathtub water, etc.

  Therefore, this system is provided with a circulation circuit for exhaust heat recovery for recovering heat from the heat source unit, a hot water supply circuit for mixing hot water discharged from the hot water storage tank with the water supply, and further, supplying the discharged hot water to the heat source. And a water circulation circuit.

  Patent Literature 1 and Patent Literature 2 disclose techniques for detecting such an abnormality of the hot water storage type hot water system based on the state of drainage.

  Patent Document 1 proposes a heat exchanger breakage detection device that can accurately determine breakage of a heat exchanger provided in a hot water supply device or a cogeneration system. The technology disclosed in Document 1 includes replenishing means (corresponding to an expansion tank in the present invention) 70 and 80, and primary circulation circuits L1 and L2 in which a heat medium (corresponding to water in the present invention) circulates; In the configuration in which the secondary flow path H for flowing the heat medium in the high pressure state is connected via the heat exchangers 61 and 64, the heat medium overflowing from the replenishing means 70 and 80 is supplied to the heat medium recovery unit 21 (the present invention). (Corresponding to the storage section in FIG. 2), and by detecting the amount of the heat medium stored in the recovery section 21, an attempt is made to detect an abnormality of the heat exchangers 61 and 64.

  In Patent Document 2, when various abnormalities occur in the circulation circuit including the expansion tank 3, the abnormality is detected by the amount of the heat medium discharged from the expansion tank 3 to the drain hopper 96. The expansion tank 3 disclosed in Document 2 includes a first overflow pipe 36A and a second overflow pipe 36B having different opening heights, and drainage from the first overflow pipe 36A flows in. By providing a drainage hopper 96 and a drainage pallet 97 into which drainage from the second overflow piping section 36B flows, and by providing the drainage hopper 96 with a sensor (corresponding to the water detecting means in the present invention) 95, Even if a sensor corresponding to the overflow of a small flow rate is used, the overflow is detected without any particular problem (paragraph [0010]). In Document 2, the drainage system includes a sensor 95, a drainage hopper 96, and a drainage pallet 97.

  As described above, in a conventional hot water storage type hot water system, there is a technique for detecting an abnormality of a device constituting the system by using a drainage facility provided in the system.

One configuration example of a conventional hot water storage type hot water system 90 is shown in FIG.
This hot-water storage type hot water system 90 includes, as a drainage facility, a drainage hopper 96 and a drainage pallet 97 equivalent to those disclosed in Patent Document 2, and water from the two expansion tanks 10 is supplied to the drainage hopper 96 by two drains. The valve 8 and the water from one check valve 14 flow into the drainage pallet 97. Therefore, the water from the relief valve 8 has been directly drained out of the system through the drainage pallet 97.

JP 2005-241119 A JP 2010-276281 A

It has been found that when the configuration shown in FIG. 10 is employed, the following problem may occur.
In the hot water storage type hot water system, the pressure in the hot water storage tank or the hot water storage pipe increases due to the volume expansion of the water during the hot water storage operation. A valve 8 is provided.

Then, in a normal hot water storage operation state in which the operation is continued normally, the diaphragm provided in the relief valve 8 is pushed up by the expansion of the hot water, and the hot water drops are discharged from the relief tap 8 and the relief valve 8 and directly flow into the drainage facility. On the other hand, if the diaphragm in the relief valve 8 is cracked, the water is drained through the relief valve 8 at the feed water pressure as it is, and the supply water continues to flow.
However, in the conventional drainage system shown in FIG. 10, the water from the relief valve 8 is directly drained to the outside via the drainage pallet 97. Therefore, the abnormality caused by the damage of the relief valve 8 is not noticed by the user without error detection.

  As an abnormality detection measure in consideration of such damage to the relief valve, in a hot water storage type hot water system, during hot water storage operation, it is a normal normal operation to discharge “potapota” and hot water from the relief valve. It is not drained except at times. On the other hand, if the relief valve is damaged, water other than high-temperature water will be continuously drained regardless of the hot-water storage operation. Abnormality can be detected if measurement is performed by using However, this solution is costly and difficult to adopt because it requires extra space for component placement.

Further, from the viewpoint of the continuation of the operation of the hot water storage type hot water system, the system operation is continued as much as possible in a state where no abnormality has occurred in a system part other than the drainage facility (for example, a relief valve which is an inflow source to the drainage facility) When an abnormality occurs in the inflow source, it is preferable in terms of operation efficiency to perform predetermined maintenance such as removal of the abnormality and checking of the drainage facility. However, a drainage facility that meets such a purpose is not known.
Further, when the drain hopper described in Patent Literature 2 is adopted, the inside of the drain hopper to which the water leakage sensor (the sensor 95 described in Patent Literature 2) is attached may be blocked by deposits such as dust. There is a need for drainage facilities that take into account blockages.

  An object of the present invention is a drainage system in which a relatively small amount of water flows in when an inflow source is normal, and a relatively large amount of water may flow in when an abnormality occurs in the inflow source, It is an object of the present invention to provide a drainage device having a simple configuration capable of detecting a normal state and an abnormal state of an inflow source and knowing a state in which maintenance is truly required.

A first feature configuration of the present invention for achieving the above object is as follows.
An inflow port into which water flows, a storage section in which the water flowing in from the inflow port is stored, and an outflow port in which the water flowing in from the inflow port flows out, and water detection means for detecting water stored in the storage section is provided. Drainage system,
A first chamber having a first inlet as the inlet,
A second chamber configured to communicate with the first chamber and receive flow water flowing from the first chamber; and a second outlet through which water flowing into the chamber flows out is provided in the second chamber. As an outflow port, a second storage unit that stores inflow water is provided as the storage unit, and the water detection unit that detects water stored in the second storage unit is provided.
Relates to the aforementioned flow water, the upper limit water flow amount flowing out from said first said second chamber directly flows into the second outlet from the first chamber, a predetermined direct runoff limit flow amount is set,
Flow rate of the flow water, wherein when it is less direct runoff limit flow amount, the flow water through the second outlet from the second chamber is discharged to the outside,
If the flow rate of the flow water exceeds the direct outflow upper flow quantity, wherein the flow water in the second reservoir is stored, in that for detecting the water the water detecting means is stored in the second storage unit is there.
In the following description, all amounts of water of interest are flow rates. However, in order to avoid complicating the description, it may be simply described as the amount. Therefore, the above "upper water flow rate" may be described as "upper water flow rate", "direct outflow upper flow rate" as "direct outflow upper flow rate", and "flow water flow rate" as "flow water flow rate". And

In the present invention, the “direct outflow upper limit amount” is set.
This “direct outflow upper limit amount” is the upper limit amount of water that flows from the first chamber to the second chamber and flows out of the second outlet directly without the flow water being stored in the second storage part.

As described above, since the present invention aims to detect the abnormal state of the inflow source, the amount of water that may flow into the drainage system when the inflow source is in an abnormal state and the normal state The "direct upper flow limit" is set based on the amount of water that may flow in the case of the above.
The amount of water flowing in the abnormal state is a first predetermined amount, and the amount of water that may flow in the normal state slightly exceeds the maximum amount (this amount substantially corresponds to the maximum amount). Assuming the second predetermined amount, the “direct upper flow limit amount” is less than the first predetermined amount and satisfies the relationship equal to or more than the second predetermined amount.
That is, first predetermined amount> direct outflow upper limit amount ≧ second predetermined amount.

  The first predetermined amount and the second predetermined amount will be described in detail later in paragraphs [0112] to [0120] in accordance with the present embodiment in which the “direct outflow upper limit amount” is the second predetermined amount. The outline is described below.

  The first predetermined amount is an amount that is set based on the amount of water that may flow into the first chamber through the first inflow port when an abnormality has occurred in the inflow source. This is the amount of water described, and is set based on the minimum value or the like.

  On the other hand, the second predetermined amount is an amount set based on the amount of water that may flow into the first chamber through the first inlet when the inflow source is in a normal state. It is set as an amount that slightly exceeds the maximum amount that may flow into the first chamber via the first chamber. Therefore, the second predetermined amount is smaller than the first predetermined amount. Usually, the difference between the first predetermined amount and the second predetermined amount is large, and the first predetermined amount exceeds twice the second predetermined amount.

According to the above-described present characteristic configuration, when the inflow source connected to the first inflow port is in a normal state, a relatively small amount of water (direct outflow upper limit amount or less) flows into the first inflow port. Flows into the second chamber from the first chamber and flows out through the second outlet.
Therefore, the water detecting means does not detect water. Further, there is no problem that the water flowing into the drainage facility is unexpectedly accumulated in the facility and is not drained.

On the other hand, when the inflow source connected to the first inlet is in an abnormal state, a relatively large amount of water flows into the second chamber. At this time, the amount of flow water directly exceeds the upper limit of the outflow. Store in the storage section.
As a result, in the abnormal state in which the first predetermined amount of water flows from the inflow source, the water stored in the second storage unit is detected by the water detection unit.

In the configuration of the present invention, when the inflow source is in a normal state, the water can be drained through the second outlet, so that it is not necessary to separately detect this state and perform maintenance. That is, the operation of the system can be continued, the required functions required for the system can be performed, and the operation becomes efficient.
On the other hand, when an abnormality occurs in the inflow source and water of the first predetermined amount or more flows into the first inlet, the amount of the flow water directly exceeds the upper limit amount of the outflow. The stored water is detected by the water detecting means. As a result, it is possible to accurately detect the abnormal state of the inflow source and perform processing such as stopping the system and prompting maintenance.
In addition, since the drainage equipment has a configuration including two chambers and a single water detection means, the structure is simplified. Furthermore, since the first and second chambers in the communicating state can be configured to be greatly opened to the outside via the second outlet, it is difficult for the outlet to be blocked, and the water from the second outlet is hardly obstructed. Outflow can be ensured, and there is no problem that the internal pressure rises even when high-temperature water flows in.

A second characteristic configuration of the present invention is:
An inter-chamber advection unit for allowing water flowing from the first inlet to flow into the second chamber;
In the water advancing direction in the inter-room advection section, the second outlet is provided on a side close to the first chamber, and the second storage section is provided on a side away from the first chamber,
If the flow rate of the flow water exceeds the direct outflow upper flow quantity, the flow water past the second outlet flows into the second reservoir, in that it is stored.

  As described above, the present invention relates to the flow water flowing from the first chamber to the second chamber, in which the flow water directly flows out of the second outlet and the state in which the flow water is stored in the second storage section. Needs to be realized according to the amount of the flow water, but the second outlet is provided on the side closer to the first chamber in the direction of advection of the water flowing through the inter-room advancing part, and the second storage part is provided on the distant side. Thus, this object can be realized with a relatively simple configuration.

A third characteristic configuration of the present invention is:
The first chamber includes a first storage unit and a first outlet,
Said first outlet port, the water together with flowing of the first reservoir, when said inflow water flow amount flowing to the first reservoir exceeds the outflow restricted flow amount of less than or equal to the direct outflow upper flow amount The point is that the first storage section is configured as a flow rate limiting type outlet in which water is stored.
As described above, the “inflow water flow rate” may be described as “inflow water flow rate” and the “outflow restriction flow rate” may be described as “outflow restriction flow rate”.

In the present invention, an "outflow limit amount" is set in addition to the "direct outflow upper limit amount".
Here, the “outflow limiting amount” is the upper limit of the amount of water that the first outlet configured as a flow limiting type outlet allows to flow out.

In the present invention, the “outflow restriction amount” corresponds to the second predetermined amount, and the “direct outflow upper limit amount” is less than the first predetermined amount and has a relationship of “outflow restriction amount” or more.
That is, the first predetermined amount> the direct outflow upper limit amount ≧ the outflow restriction amount = the second predetermined amount.

  The description of the paragraphs [0112] to [0120] is the description of the present embodiment in which the “direct outflow upper limit amount” is the same as the “outflow limit amount”.

In the present invention, the outflow restriction amount is the amount of water that defines the flow rate restriction function to be provided in the first outlet, and is the upper limit of the amount of water that the first outlet allows outflow. Therefore, when the amount of water that is going to flow into the first outlet from the first storage section exceeds the outflow limit amount, water is stored in the first storage section.
Here, the structure including the first outlet in addition to the second outlet as described above, for example, when the relatively small amount of water frequently flows, the first outlet is provided immediately below the first inlet. As a result, a smooth outflow state can be secured.

According to the above characteristic configuration, when the inflow source connected to the first inflow port is in a normal state, a relatively small amount (less than the outflow restriction amount) of water flows into the first inflow port. It is discharged as it is via the first storage section and the first outflow section.
If the first outlet is blocked unexpectedly, water will be stored in the first reservoir, but if no abnormality has occurred in the inflow source, water below the outflow limit (direct outflow upper limit) will be in the second chamber. Therefore, it flows out of the second outlet as it is without being stored in the second storage part. Therefore, there is no problem that water flowing into the drainage facility is unexpectedly accumulated in the facility and is not drained. Naturally, the water detecting means does not detect water.

  On the other hand, when the inflow source connected to the first inlet is in an abnormal state, the first predetermined amount of water attempts to flow from the first storage unit to the first outlet, but the first outlet is at a maximum. As a result, the remaining portion is stored in the first storage portion because it is configured as a flow rate limiting type outlet that allows only a limited amount of water to flow out. Then, an inflow from the first storage unit to the second chamber occurs, and when the amount of the flow water directly exceeds the upper limit of the outflow, the flow water is stored in the second storage unit. As described above, since the difference between the first predetermined amount set based on the amount of water flowing in when the inflow source is in an abnormal state and the outflow restriction amount (second predetermined amount) is large, the first Even when the outlet is not closed, storage in the second storage section occurs.

  When the inflow source is in an abnormal state and the first outlet is closed, the amount of water flowing in becomes the first predetermined amount which directly exceeds the upper limit of outflow, so that the storage in the second storage part naturally occurs. I do. As a result, in the abnormal state in which the first predetermined amount of water flows from the inflow source, the water stored in the second storage unit is detected by the water detection unit.

When the inflow source is in a normal state, the amount of water flowing into the drainage facility is equal to or less than the outflow restriction amount (second predetermined amount) even if the first outflow port is closed (this state is referred to as the present invention). However, the water can be drained through the second outlet, so that it is not necessary to detect this state separately and perform maintenance. That is, the operation of the system can be continued with the blockage occurring at the first outlet as it is, the required functions required of the system can be performed, and the operation is efficient.
On the other hand, when an abnormality occurs in the inflow source and water of the first predetermined amount or more flows into the first inflow port, the first outflow port is clogged. It is necessary to determine that the flow water directly exceeds the upper limit of the outflow regardless of the presence or absence of blockage. Water can be detected by the water detecting means, and the abnormal state of the inflow source can be accurately detected, and processing such as urging system shutdown and maintenance can be performed.
In addition, since the drainage system has a configuration including two chambers and a single water detecting means, the structure is simple, and the first and second chambers in the communicating state are the first outlet or the second outlet. It is unlikely that both outlets will be blocked because they are open to the outside through the outlet. Even if the first outlet is closed, the outflow of water from the second outlet can be secured, and high-temperature water Even if it flows, there is no problem that the internal pressure rises.

A fourth characteristic configuration of the present invention is:
A second overflow portion in which the stored water overflows from the second storage portion to the second outlet,
The second overflow section is provided at a position lower than the first overflow section where the stored water overflows from the first chamber to the second chamber.

  According to this characteristic configuration, the first chamber communicates with the second chamber via the first overflow section, and the second storage section provided in the second chamber is connected to the second outlet through the second overflow section. Configuration. The overflow water that overflows the first overflow section flows into the second outlet according to the amount of water (direct outflow upper limit amount or less), and is stored in the second storage section and further via the second overflow section. It is necessary to classify the flow into the second outlet (directly exceeding the upper limit of the outflow (including the first predetermined amount)). However, by setting the second overflow portion to a position below the first overflow portion, it is easy to classify. This division structure can be realized.

A fifth characteristic configuration of the present invention is:
A plurality of first inlets are provided as the first inlet, and water from different inflow sources individually flows into different first inlets.

  According to this characteristic configuration, a relatively small amount of water flows into the first inlet in a normal state, and a larger amount of water than the flow rate in the normal state flows in an abnormal state. It is possible to determine the state of a plurality of inflow sources.

A sixth characteristic configuration of the present invention is:
It is characterized in that when the water detecting means detects water, an abnormal state determining means for determining that there is an abnormal state is provided.

  According to this characteristic configuration, the abnormal state determination means can accurately and automatically determine, as an abnormal state, a state that truly requires maintenance in the drainage facility and a system including the drainage facility.

A seventh aspect of the present invention, which is a third aspect of the present invention, relates to a drainage facility including the first storage section and the first outlet in the first chamber.
When the water detecting unit detects water, an abnormal state determining unit that determines that there is an abnormal state is provided,
The abnormal condition, comprising an inlet former abnormal closed state in which the water first outlet exceeds the direct outflow upper flow amount occluded and the first inlet flows,
In the abnormal state, the first outlet is in that the direct outflow upper flow amount less water occluded and the first inlet includes no inlet original normal closed to flow.

An eighth characteristic configuration of the present invention is:
The second chamber includes a second inlet into which water flows from a source different from the water flowing into the first inlet, and the water flowing from the second inlet is stored in the second storage portion. The point is that it overflows from the second storage part and flows out from the second outlet.

  According to this characteristic configuration, by providing the second inflow port, the state of the inflow source that allows the water to flow into the second inflow port can also detect the abnormality of the inflow source flowing through the first inflow port. It can be known from the detection output of the detection means.

  The above is the description of the drainage equipment according to the present invention.

Hereinafter, a hot water storage type hot water system provided with a drainage facility according to the present invention will be described.
A ninth feature of the present invention is that
A hot-water storage type hot-water system that uses hot water supplied from the hot-water storage tank to heat hot water and obtain hot water by heat supplied from the heat source device, and includes a hot-water storage tank that stores generated hot water,
A configuration in which escape water flows into the first inlet from an escape valve provided in a circulation path of hot water discharged from the hot water storage tank or a supply path of water supplied to the hot water storage tank or both,
When the direct outflow upper flow amount, the relief inlet water flow amount or more from the valve in a normal state, the abnormal to the relief valve flows from relief valve in the said abnormal condition occurs in the first inlet, it is in that it is set to less than the water flow amount is assumed to be flowing into the second chamber from the first chamber.
As described above, the "flow rate of water flowing from the relief valve" may be described as "the flow rate of water flowing from the relief valve".

  According to this characteristic configuration, the normality or abnormality of the relief valve provided in the hot water circulation path or the supply water supply path provided in the hot water storage type hot water system can be determined favorably from the output of the water detection means of the drainage equipment according to the present invention. .

  Here, when flowing into the first inlet from the relief valve in the abnormal state, the amount of water expected to flow from the first chamber to the second chamber is, specifically, the amount of water shown in FIG. In the case of a configuration having one outlet, the amount is a value obtained by subtracting the second predetermined amount from the first predetermined amount, and when the first outlet shown in FIG. 8 is not provided, the amount is the first predetermined amount.

  Regarding the corresponding outflow restriction amount, the outflow restriction amount is less than half of the amount of water that is assumed to have an abnormality in the relief valve and flow into the first inlet from the relief valve in the abnormal state. This is set to be equal to or larger than the amount of water flowing from the relief valve in a normal state. Here, the lower limit of the amount of water at which water is stored in the second storage unit and the water is detected by the water detection unit is such that the amount of outflow from the first outlet is the outflow restriction amount (second predetermined amount), Since the upper limit of the direct outflow is set to the lower limit of the outflow limit amount, the amount exceeds twice the outflow limit amount.

A tenth feature of the present invention is:
A hot-water storage type hot-water system that uses hot water supplied from the hot-water storage tank to heat hot water and obtain hot water by heat supplied from the heat source device, and includes a hot-water storage tank that stores generated hot water,
A structure in which surplus water from an expansion tank receiving water supply from a water supply channel flows into the first inlet,
When the direct outflow upper flow amount, the expansion tank inlet water flow amount or more from that in the normal state, the abnormality in said expansion tank flows from the expansion tank is to the abnormal state occurring in the first inlet, it is in that it is set to less than the water flow amount is assumed to be flowing into the second chamber from the first chamber.
As described above, the "water flow rate flowing from the expansion tank" may be described as "water flow rate flowing from the expansion tank".

  According to this characteristic configuration, it is possible to satisfactorily determine whether the expansion tank receives the replenishment of water from the water supply channel provided in the hot water storage system, whether it is normal or abnormal, from the output of the water detection means of the drainage equipment according to the present invention. Such abnormalities on the expansion tank side include, as will be described later, an abnormality in the opening of the make-up water solenoid valve as a make-up water control valve provided in the expansion tank, and an abnormality in the heat exchanger provided in the circulation path having the expansion tank. And the like.

Here, when flowing into the first inlet from the expansion tank in the abnormal state, the amount of water expected to flow from the first chamber to the second chamber is, specifically, the amount of water shown in FIG. In the case of a configuration having one outlet, the amount is a value obtained by subtracting the second predetermined amount from the first predetermined amount, and when the first outlet shown in FIG. 8 is not provided, the amount is the first predetermined amount.
The corresponding outflow restriction amount is less than half the amount of water that is expected to flow into the first inlet from the expansion tank in which an abnormality has occurred in the expansion tank and is in an abnormal state and from the expansion tank in a normal state. It will be more than the amount of water flowing in.

An eleventh feature of the present invention is a hot water storage type hot water system having the ninth feature or the tenth feature described above,
The second chamber includes a second inlet through which water flows from an inflow source different from water flowing into the first inlet,
The point is that excess water flows into the second inlet from the check valve provided in the hot water path.

  According to this characteristic configuration, when there is an inflow source different from the water that flows into the first inflow port described above, the normality and abnormality of the check valve provided in the hot water path serving as the inflow source can be satisfactorily determined. It can be determined from the output of the water detecting means of the drainage equipment according to the present invention.

A twelfth characteristic configuration of the present invention includes:
A hot-water storage type hot-water system that uses hot water supplied from the hot-water storage tank to heat hot water and obtain hot water by heat supplied from the heat source device, and includes a hot-water storage tank that stores generated hot water,
The point is that excess water flows into the second inlet from the check valve provided in the hot water path.

  According to this characteristic configuration, the state of water storage in the second storage unit is detected by the water detection means, so that the normality and abnormality of the check valve provided in the hot water path can be satisfactorily determined. Can be determined from the output of the water detecting means.

A thirteenth feature of the present invention is:
A hot-water storage type hot-water system that uses hot water supplied from the hot-water storage tank to heat hot water and obtain hot water by heat supplied from the heat source device, and includes a hot-water storage tank that stores generated hot water,
A plurality of first inlets are provided as the first inlet, and water from different inlets individually flows into different first inlets, and flows into the second chamber into the first inlet. A drain having a second inlet into which water flows from an inflow source different from water,
The escape water flows into the first inlet from a relief valve provided in a circulation path of hot water discharged from the hot water storage tank, a supply path of water supply to the hot water storage tank, or both, and is connected to the relief valve. Excess water from the expansion tank, which receives water from the water supply passage, flows into the first inlet, which is different from the first inlet, and further flows from the check valve provided in the hot water path to the second inlet. The point is that excess water flows in.

  With this characteristic configuration, the normality or abnormality of all of the relief valve, the expansion tank side, and the check valve provided in the hot water storage type hot water system can be properly determined from the output of the water detection means of the drainage facility.

Sectional drawing which shows the structure of the drainage equipment which concerns on this invention. The figure which shows the drainage state from the relief valve provided in the hot water storage type hot water system in the drainage facility which concerns on this invention. The figure which shows the drainage state from the expansion tank provided in the hot water storage type hot water system in the drainage facility which concerns on this invention. The figure which shows the drainage state in the abnormal state in which the abnormality has occurred in the check valve provided in the hot water storage type hot water system in the drainage facility which concerns on this invention. The figure which shows the structure of the hot-water storage type hot water system provided with the drainage equipment which concerns on this invention. It is a figure which shows the structure of the hot-water storage type hot water system provided with the drainage equipment which concerns on this invention, Comprising: The figure which mainly shows the structure regarding the supply of water to an expansion tank, and the structure regarding heating and tub water reheating. Sectional drawing which shows the structure of the drainage equipment of another embodiment which concerns on this invention. Sectional drawing which shows the structure of the drainage equipment of further another embodiment which concerns on this invention. FIG. 8 is a diagram showing a drainage state corresponding to FIG. 2 in the embodiment shown in FIG. The figure which shows the structure of the hot-water storage type hot water system provided with the drainage equipment which has the conventional drainage hopper and the drainage pallet.

Hereinafter, a drainage facility 50 according to the present invention and a hot water storage type hot water system 100 including the drainage facility 50 will be described with reference to the drawings.
As described above, this embodiment is an example in which the first outlet O1 which is a flow limiting type outlet is provided, and the “outflow limiting amount” is the same as the “direct outflow upper limit amount”. In the description, a first predetermined amount and a second predetermined amount (= outflow restriction amount) will be used for easy understanding.

[Drainage equipment]
The structure of the drainage device 50 is shown in FIG. 1, and the drainage state of the drainage device 50 is shown in FIGS. In the description of the drainage equipment 50, the inflow source S connected to each of the inlets E1 and E2 will be appropriately described with reference to FIG.

  As shown in FIG. 1, the drainage device 50 according to the present invention is provided with a first chamber R1 and a second chamber R2, and both the chambers R1 and R2 are referred to as a first overflow section OF1 in the present invention. The water stored in the first storage portion S1 is connected to the water through the communication opening through which the water overflows.

First chamber As can be seen from the figure, the first chamber R1 includes a first inlet E1 (E1g, E1d), a first storage part S1, and a first outlet O1.
In this example, two first inflow ports E1g and E1d are provided as the first inflow ports E1, and each is configured such that water flows in from a different inflow source S. In the illustrated example, the inflow source S to the first inflow port E1d shown on the right side of the drawing is the relief valve 8, and the inflow source S to the first inflow port E1g shown on the left side of the drawing is the expansion tank 10. As can be seen from FIG. 5, in the hot water storage type hot water system 100 according to the present invention, due to the functions required for the hot water storage hot water system 100, the escape water from the two relief valves 8, 8 and the expansion tanks 10, 10, respectively. From the first inlet E1g. It flows into E1d.

  The lower region of the first inlet E1 includes an outer peripheral wall 51 of the drainage device 50 and a first storage portion S1 surrounded by a rising wall portion 52u that forms a partition wall 52 that separates the first chamber R1 and the second chamber R2. Have been. In this example, the partition wall 52 includes a hanging wall portion 52d that hangs from substantially the center of the drainage cover 59, and a rising wall portion 52u provided between the first outlet O1 and the second outlet O2 and rising from below. It is comprised including. A configuration is adopted in which the lower end portion of the above-mentioned hanging wall portion 52d is inclined toward the first chamber R1. By adopting the inclined configuration of the lower end portion, the water flowing in from the first inlet E1d on the right side can be reliably guided to the first storage part S1.

  Water flowing from the first inlets E1g and E1d flows into the first storage part S1. As can be seen from the figure, the first storage portion S1 has a lower convergent shape whose cross-sectional area decreases toward the lower side, and the lower end thereof is connected to the first outlet O1.

  In the drainage facility 50, the entire amount of water flowing into the first storage unit S1 flows out from the first outlet O1 depending on the amount thereof, or a part of the water flows out, and the remainder is stored in the first storage unit S1.

  Describing this configuration, the first outlet O1 is provided with a guide plate 53 that narrows the flow path as it goes downward. By providing the guide plate 53, the first outlet O1 becomes a flow limiting type outlet. That is, the first outlet O1 is an outlet that limits the amount of water flowing out of the outlet O1 to a second predetermined amount or less, and the amount of inflow water flowing from the first inlet E1 to the first storage unit S1 is reduced. When the amount exceeds the second predetermined amount (specifically, when the first predetermined amount or more referred to in the present invention flows in), the outlet serves as an outlet for storing water exceeding the second predetermined amount in the first storage unit S1. I have.

  The guide plate 53 has an inclined shape that is difficult to be clogged, and by providing the inclined guide plate 53, water of a second predetermined amount or less, which the present inventors call “pota-pota flow rate”, forms droplets to form the first liquid. Even when the water flows into the outflow port O1, it is configured such that this amount of water can flow down smoothly and flow out to the outside. Therefore, for example, as shown in FIG. 2A and FIG. 3A, the state in which the inflow of water through the first inlet E1 (E1g, E1d) and the first reservoir S1 sequentially forms droplets. Water can be discharged smoothly to the outside even when it becomes old.

  With the above configuration, in the first chamber R1, the amount of water flowing from the first inlet E1 (E1g, E1d) is discharged from the first outlet O1 when the amount is equal to or less than the second predetermined amount. On the other hand, when the amount exceeds the second predetermined amount (including the case of the first predetermined amount), the liquid is sequentially stored in the first storage part S1 by the flow rate restriction function of the first outlet O1, and the liquid level is changed to the first overflow part OF1. , And overflows and flows into the second chamber R2. This water is called overflow water in the present invention.

  Further, as shown in FIG. 2B, when the first outlet O1 is closed, water is stored in the first storage S1, regardless of the amount of water flowing into the first storage S1, and the water level is increased. Overflows into the second chamber R2 in a state of exceeding the first overflow section OF1.

  The above is the description regarding the first chamber R1.

2nd room As shown in FIG. 1, the 2nd room R2 is also provided with the 2nd inflow port E2, the 2nd storage part S2, and the 2nd outflow port O2, and is comprised by the 2nd storage part S2. Water detecting means s for detecting is provided.
However, the connection relationship between the second storage section S2 and the second outlet O2 is different from the configuration of the first chamber R1.

  In this example, only one inflow port is provided as the second inflow port E2, and water is supplied from the inflow source S different from the inflow source S connected to the first inflow port E1 (E1g, E1d) described above. Inflow. As can be seen from FIG. 5, water flows into the second inflow port E2 from the check valve 14 serving as the inflow source S.

  The lower area of the second inflow port E2 is a second storage section S2 surrounded by an outer peripheral wall 51 of the drainage facility 50 and a partition wall 54 that partitions the second outflow port O2 and the second storage section S2. Here, the partition wall 54 provided between the second outlet O2 and the second storage part S2 is formed to rise from below from the outer peripheral wall 51 to the second overflow part OF2, and the second storage part S2 has a bottom. It has a bowl shape. Therefore, the water flowing from the second inlet E2 once falls into the second storage part S2, and overflows from the second overflow part OF2 to the second outlet O2 in a state where the second storage part S2 is full. Inflow.

  Here, the vertical position of the second overflow portion OF2 is a position on the lower side with respect to the position of the first overflow portion OF1 described above. The water stored in the second storage section S2 is detected by the water detecting means s.

  As is clear from FIG. 1, an inlet portion of the second outlet O2 is formed between the first overflow portion OF1 and the second overflow portion OF2, from which water is discharged to the second outlet portion. The structure which flows into O2 is adopted. The second overflow section OF2 is provided with a rising wall 54a inclined toward the second storage section S2. As shown in FIG. 2B, the water that overflows the first overflow portion OF1 and falls below the second predetermined amount falls on the upper surface of the rising wall portion 54a along the guide plate 55, and flows toward the second outlet O2 side. Be guided.

  In this configuration, the water flowing into the second chamber R2 is the water flowing from the first chamber R1 over the first overflow portion OF1, and the water flowing from the second inlet E2. Then, as is clear from the configuration of the second chamber R2 described above, the water flowing from the second inflow port E2 is temporarily stored in the second storage section S2, and the second water is introduced from the second storage section S2 to the second storage section S2. It flows into the second outlet O2 over the overflow part OF2. The storage of water in this state is detected by the water detecting means s.

  On the other hand, with respect to water flowing from the first chamber R1 to the second chamber R2 over the first overflow section OF1, the positional relationship between the second outlet O2 and the second storage section S2 in the second chamber R2 and the first The flow form into the second storage section S2 is configured to be different depending on the amount of overflow water that exceeds the overflow section OF1.

  As is clear from FIGS. 1 and 2, the first overflow portion OF1 is attached to the leading end of the rising wall portion 52u constituting the partition wall 52 while being inclined downward from the leading end toward the second overflow portion OF2. An outlet guide plate 55 is provided, and as shown in FIG. 2 (c), the amount of water flowing from the first inlet E1 (E1g, E1h) is equal to or greater than a first predetermined amount (the first predetermined amount is equal to the first predetermined amount). 2 is more than twice the predetermined amount), the overflow water flows into the second storage part S2 and is stored in the part S2. On the other hand, when the amount of overflow water exceeding the first overflow portion OF1 is equal to or less than the second predetermined amount, as shown in FIG. It does not flow down on the part 54a and does not flow into the second storage part S2 (in other words, it is not stored in the second storage part S2), and it is externally passed through the second outlet R2 directly from the second chamber R2. Is adopted. When the amount of overflow water exceeds the second predetermined amount, the overflow water is stored in the second storage unit S2.

According to the above configuration, in the second chamber R2, the overflow water flowing into the second chamber R2 via the first overflow section OF1 flows out directly from the second outlet O2 or flows into the second storage section according to the amount thereof. The water flows into and is stored in S2, and is detected by the water detecting means s.
On the other hand, the water flowing from the second inlet E2 is sequentially stored in the second storage part S2 regardless of the amount thereof, and flows out from the second outlet O2 in a state where the stored liquid level reaches the second overflow part OF2. I do. When water is stored in the second storage part S2 in such a lapse, this storage state is detected by the water detection means s.
The above is the description regarding the second chamber R2.

  Therefore, this drainage facility is provided with a first overflow section OF1 (an example of an inter-room advection section) that allows overflow water (an example of flow water) flowing from the first inlet E1 to flow into the second chamber R2. In the water advancing direction in the overflow section OF1, a second outlet O2 is provided on a side close to the first chamber R1, and a second storage section S2 is provided on a side away from the first chamber R1, and the amount of the flow water is determined as the “direct outflow upper limit amount”. ”, The flow water flows into the second storage part S2 over the second outlet O2 and is stored.

The above is the description of the drainage equipment 50 according to the present invention including the first chamber R1 and the second chamber R2. Hereinafter, by adopting the above-described configuration, this drainage is performed according to the detection information of the water detection means s. The determination of the state of the inflow source S of the water flowing into the facility 50 will be described.
Here, the water detection by the water detection means s is an alternative detection of “ON for detecting water” and “OFF for not detecting water”.

Judgment Unit FIG. 1 shows a configuration including a judgment unit J (judgment computer containing judgment / output software) capable of automatically executing such judgment and outputting a judgment result.
The determiner J is provided with a normal state determining means m1 and an abnormal state determining means m2.

Hereinafter, the determination conditions and determinations of the respective determination means m1 and m2 will be described in detail. The drainage states related to making this determination are shown in FIGS. 2, 3, and 4, respectively.
Table 1 shows the state of each chamber and the detection state of the water detection means s corresponding to these drainage states (1 to 8). In the table, the occurrence factors of each state, the states of the first and second outlets O1 and O2, the states of the first and second storage units S1 and S2 (“×” when no storage is performed, and “「 ”when storage is performed) ), The state of the water detecting means s (“OFF” when no water detection output is provided, and “ON” when the water detection output is provided) Impossibility was indicated by "Maintenance required"). Here, when the system operation cannot be continued, there is a possibility that an abnormality has occurred at least on the system side, and that the first outlet O1 has been blocked. Therefore, the system is checked, and if there is a blockage in the first outlet O1, it is removed.

Hereinafter, each drainage state will be described with reference to the drawings.
In these figures, q indicates the amount of water flowing out of each of the outlets O1 and O2, q1 indicates a first predetermined amount, and q2 indicates a second predetermined amount. Further, Q1in and Q2in indicate the amount of water flowing from the first inlet E1 and the second inlet E2, which are relatively large, and Q1ov and Q2out indicate the amount of overflow of the first overflow portion OF1, which is also relatively large. The amount of water flowing out from the second outlet O2 is shown.

FIG. 2A is a diagram illustrating a drainage state in which the system is in a normal state and the escape water flows in from the relief valve 8 connected to the first inlet E1d on the right side.
As described above, in the normal state in which the relief valve 8 operates normally, the amount of inflowing water flowing into the drainage device 50 is equal to or less than the second predetermined amount q2 (“potapota water amount”). Therefore, in this state, the escaping water flowing from the first inlet E1d flows into the first outlet O1 via the first storage part S1 and flows out as it is in a state of forming droplets, and the first storage part There is no storage in S1. In this case, naturally, the water detection output cannot be obtained from the water detection means s (state 1 in Table 1).

  FIG. 2B shows a drainage state in a state where the first outlet O1 is closed for some reason. In this figure as well, since the relief valve 8 is operating normally, water flows as droplets into the first inlet E1d on the right side, but the first outlet O1 is clogged with foreign matter 56. In this state, the spill water from the spill valve 8 flows into the second chamber R2 over the first overflow portion OF1, and the amount of water q is equal to or less than the second predetermined amount q2 (“potapota water amount”). ), The water directly flows into the second outlet O2 without being stored in the second storage part S2, and flows out from the second outlet O2. Although the blockage has occurred in this manner, no water detection output is obtained from the water detection means s in a state where only the water amount equal to or less than the second predetermined amount q2 flows (state 2 in Table 1). In this state, since there is no abnormality in the relief valve 8 (in other words, the system side) and the water can be drained from the second outlet O2, the original functions of the system (hot water generation, hot water supply, heating, bath water reheating, and hot water filling) are provided. It is in a state where operation can be continued and can be demonstrated.

FIG. 2C is a diagram illustrating a drainage state in an abnormal state in which an abnormality has occurred in the relief valve 8.
When an abnormality such as a breakage of the diaphragm (not shown) as described above occurs in the relief valve 8, the amount Q1in of water flowing into the first inlet E1d increases remarkably. Since the amount of water Q1in exceeds the second predetermined amount q2 set in advance, only the outflow from the first outlet O1 (the second predetermined amount q2) is not sufficient as shown in FIG. It is stored in the first storage section S1, and flows into the second chamber R2 beyond the first overflow section OF1 (Q1ov = Q1in-q2). Then, overflow water flows from the first chamber R1 into the second chamber R2, and is stored in the second storage part S2. Therefore, in a state where this state occurs, a water detection output is obtained from the water detection means s (state 3 in Table 1).
The figure shows a state in which the first outlet O1 is not clogged with the foreign matter 56. If the foreign matter 56 is clogged in the first outlet O1 in this state, the water flowing into the first inlet E1d becomes overflow water that overflows from the first chamber R1 to the second chamber R2 (Q1ov = Q1in). . Therefore, in this state, the water is immediately stored in the second storage section S2, and the water detection by the water detection means s is performed immediately.
In the state where the relief valve 8 is abnormal as described above, water detection by the water detection means s occurs regardless of whether the first outlet O1 is open or closed. As a result, it shifts to maintenance work.

The above is the state in which water flows from the relief valve 8 into the first inlet E1d on the right side.
When water flows from the expansion tank 10 into the first inlet E1g on the left side, the state is the same as that described with reference to FIG.
FIG. 3A shows a drain state corresponding to FIG. 2A, and shows a state in which surplus water from the expansion tank 10 flows in as droplets in a normal state, and FIG. The drainage state in the abnormal state corresponding to c) was shown. As an example of a state in which there is an abnormality on the expansion tank 10 side, when the makeup water control valve 15 provided in the expansion tank 10 fails, the expansion tank 10 is provided in the hot water (heat medium) circulation paths L0 and L4g. The case where the heat exchangers 5 and 12 are damaged is exemplified.
The water detection output obtained from the water detection means s is not different from the case where the spilled water flows from the spill valve 8 into the first inlet E1d on the right side described above (states 4, 5 and 5 in Table 1). 6).
Therefore, the maintenance operation is started by the water detection output from the water detection means s.

FIG. 4 shows a drainage state in an abnormal state in which an abnormality occurs in a check valve 14 described later. In the normal state of the check valve 14, almost no water flows through the second inlet E2, and when the check valve 14 is abnormal, water flows into the second inlet E2 (inflow water amount Q2in). In a normal state, almost no water is stored in the second storage section S2, and in an abnormal state in which an abnormality occurs in the check valve 14, water flows in from the second inlet E2 and flows into the second storage section S2. To store. As a result, it overflows from the second overflow part OF2 to the second outlet O2 and flows out (q = Q2out = Q2in).
Even when this abnormal state occurs, a water detection output is obtained from the water detection means s (states 7 and 8 in Table 1).
Therefore, the maintenance operation is started by the water detection output from the water detection means s.

  The basic operation of the drainage equipment 50 according to the present invention is as described above. The functions of the respective judging means m1 and m2 provided in the judging device J shown in FIG. 1 are as follows. This determination corresponds to the determination (continuation of operation / maintenance required) shown in Table 1.

Normal state judging means Normal state judging means m1 is an inflow source S connected to the first inlet E1 when the water detecting means s does not detect water (see FIGS. 2 (a), 2 (b) and 3 (a)). It is determined that there is no inflow of water equal to or more than the first predetermined amount q1 and that there is no inflow of water from the inflow source S connected to the second inlet E2.
However, the normal state includes a state in which the first outlet O1 is closed and water of the second predetermined amount q2 or less flows into the first inlet E1 (see FIG. 2B). .

Abnormal state determining means The abnormal state determining means m2 determines that an abnormal state has occurred only when the water detecting means s detects water (see FIGS. 2C, 3B, and 4).

This abnormal state includes a state in which water exceeding the first predetermined amount q1 flows in from the first inlet E1 irrespective of whether the first outlet O1 is opened or closed (FIGS. 2C and 3C). b)).
In a case where the first outlet O1 is closed, when water exceeding the second predetermined amount q2 flows in from the first inlet E1, all of this amount of water becomes overflow water, and water is sequentially accumulated in the second storage part S2. Therefore, this state is detected (not shown).

  This naturally includes the case where the inflow source S connected to the second inlet E2 has an abnormality that causes water to flow into the second inlet E2.

  In this way, the drainage device 50 according to the present invention includes the determiner J, so that the state of the inflow source S can be determined, and appropriate measures can be taken on the system side.

  In the description so far, the processing after the occurrence of an abnormality and the storage of water in the second storage unit S2 has not been described. For example, when water is stored in the second storage unit S2, Since the user is notified of the abnormality as an output, the entire drainage facility 50 may be removed from the attached device to discharge water from the second storage part S2, or a drainage tool (not shown) may be separately provided to the second storage part S2. ) May be provided. Furthermore, the closing of the outlet (particularly the first outlet O1) is confirmed, and if the outlet is closed, it is removed.

The above is the description of the drainage equipment 50 according to the present invention.
Hereinafter, the hot-water storage type hot water system 100 including the drainage facility 50 will be described with reference to FIGS. 5 and 6. These drawings show the configuration of the entire hot water storage type hot water system 100 according to the present invention.
FIG. 5 shows a circulation path L0 for exhaust heat recovery, water supply paths L1g, L1d, L1h, a circulation path L2 for hot water generation, a hot water supply path L3, circulation paths L4g and L4d for hot water use, and a connection path L5. Each is shown separately. FIG. 6 shows a circulation path L2 for generating hot water and circulation paths L4g and L4d for using hot water, and separately shows a water supply path L1h to each expansion tank 10 provided in the circulation paths L0 and L4g. ing.

Hot water storage type hot water system 100 is provided with hot water storage tank 2 for storing hot water while heating hot water to supply hot water with heat supplied from heat source device 1 and using the hot water discharged from hot water storage tank 2. It is configured as a system.
Here, the heat source device 1 may be any device that can use exhaust heat, and examples thereof include a gas engine and a fuel cell.
Further, as a form of utilization of hot water, there are hot water supply (including hot water filling in bathtub 3), additional heating of hot water in bathtub 3, and use as a heat source of indoor heat exchanger 4 for heating. FIGS. 5 and 6 show all of these three usage modes. The heating via the indoor heat exchanger 4 may be configured to perform low-temperature heating for supplying low-temperature water in addition to high-temperature heating for supplying high-temperature water to the indoor heat exchanger 4, but in this example, heating water for heating is simply used. The configuration for supplying in one system is shown.

Hereinafter, description will be made in order.
(Hot water generation)
FIG. 5 shows the water supply paths L1g and L1d and the circulation path L2. The circulation path L2 is provided with a waste heat exchanger 5 and a hot water storage tank 2, and a hot water path L2 ′ for obtaining hot water from the circulation path L2 is branched. The drawing also shows a hot water supply passage L3 which receives and mixes water from the water supply passage L1d and hot water from the hot water passage L2 'to supply hot water at a predetermined temperature. Further, a circulation path L0 for exhaust heat recovery for recovering exhaust heat from the heat source unit 1 is also shown.

Hot water generation using heat from the heat source unit As shown on the left side of the figure, a circulation path L0 for exhaust heat recovery for exhaust heat recovery is provided between the heat source unit 1 and the exhaust heat exchanger 5. At the same time, the heat-receiving-side heat exchange section (secondary-side heat exchange section) of the exhaust heat exchanger 5 is supplied with hot water stored in a lower portion of the hot water storage tank 2 or low-temperature water supplied under reduced pressure by the pressure reducing valve 6. It is a part of a circulation path L2 for generating hot water. The hot water generated by the exhaust heat exchanger 5 can be stored in the upper portion of the hot water storage tank 2 and can be supplied to the mixing valve 7a via the hot water passage L2 '.
Accordingly, water can be supplied to the circulation path L2 for hot water generation and the hot water storage tank 2 via the water supply path L1g, and the generated hot water can be stored in the hot water storage tank 2 while recovering heat from the heat source unit 1. It has a configuration.
Further, on the downstream side of the exhaust heat exchanger 5 in the circulation path L2, and on the upstream side of the inflow side to the hot water storage tank 2, the hot water in the circulation path L2 is taken out from the circulation path L2 and the auxiliary heat source device C capable of heating is extracted. In addition, the hot water in the circulation path L2 can be heated as needed.

  In this configuration, a relief valve 8 is provided between the pressure reducing valve 6 and the heat storage switching valve 7 of the water supply passage L1g, and the relief valve 8 is provided between the three-way valve 9 and the circulation pump P of the circulation passage L2 for generating hot water. Is provided. The escape water from these relief valves 8, 8 flows into the first inlet E1d on the right side of the drainage device 50. This relief valve 8 causes damage to the diaphragm (not shown) described earlier in [Problems to be Solved by the Invention].

On the other hand, an expansion tank 10 is provided in the exhaust heat recovery circulation path L0 for exhaust heat recovery. The expansion tank 10 is provided with an overflow port 10a for discharging surplus water. The overflow port 10a is connected to a first inlet E1g on the left side of the drainage device 50.
The surplus water discharged from the expansion tank 10 will be described later with reference to FIG. 6 together with the description of the expansion tank 10 provided in the circulation path L4d using hot water.

Utilization of Heat As a form of utilization of heat, hot water supply (including filling the bathtub 3), reheating of hot water in the bathtub 3 and an indoor heat exchanger 4 are provided. The description will be made in the following order.

Hot water supply As shown in the upper part of the figure, a hot water path L2 'connected to the circulation path L2 on the base end side is connected to a mixing valve 7a, and the mixing valve 7a receives water from the water supply path L1d to generate hot water of a predetermined temperature. The hot water can be supplied from the hot water tap 11 via the hot water supply path L3.

Heating / bath water additional heating / hot water supply A heating heat exchanger 12 and a bath heat exchanger 13 branch from the circulation path L2 and receive hot water as a primary heat source from the circulation path L2. The primary water after the heat exchange from the heating heat exchanger 12 and the bath heat exchanger 13 returns to the exhaust heat exchanger 5 described above.

  The secondary side of the heating heat exchanger 12 is connected to the indoor heat exchanger 4 installed in each room to be heated and used for heating. An expansion tank 10 is provided on the heating return side of the heating pump P provided in the circulation path L4g for using hot water. Excess water from the expansion tank 10 also receives the first inlet E1g of the drainage device 50 via the overflow port 10a. Is adopted.

  On the other hand, the bath heat exchanger 13 is connected to a bathtub water circulation path L4d through which the bathtub water from the bathtub 3 returns and the bathtub water after the heat exchange flows (long dashed line). I have. A connection path L5 (short dashed line) is provided between the bathtub water circulation path L4d and the hot water supply path L3 described above, which is connected to the upstream side (the bath return side) of the bath pump P. A configuration is employed in which hot water can be supplied from hot water supply passage L3 via the hot water supply passage L3. As a result, hot water can be supplied into the bathtub 3. The connection path L5 and a part of the bathtub water circulation path L4d constitute a “hot water path” according to the present invention.

  The connection path L5 is provided with a backflow prevention valve 14 for preventing backflow to the hot water supply path L3 side. The check valve 14 also has an overflow structure, and the excess water from the check valve 14 flows into the second inlet E2 of the drainage device 50.

In the hot water storage type hot water system 100 according to the present invention, the expansion tank 10 is provided in each of the circulation path L0 for exhaust heat recovery and the circulation path L4g for heating. Each of these expansion tanks 10 is provided with a make-up water solenoid valve 15 (the make-up water control valve described above), and when the amount of water in the expansion tank 10 becomes smaller than a predetermined amount, the pressure is reduced via the water supply passage L1h. Water is supplied at the water supply pressure without passing through the valve 6.

Since a structure is adopted in which the excess water in the expansion tank 10 flows into the first inlet E1g of the drainage device 50 according to the present invention, for example, the make-up water solenoid valve 15 generates dust, When a failure occurs, the failure is determined as the first abnormal state.
Further, when water as a heat medium due to breakage of the heat exchangers 5 and 12 provided in the circulation paths L0 and L4g where the expansion tanks 10 are disposed unexpectedly flows into the circulation paths L0 and L4, a failure is similarly determined. You.

The above is the configuration and operation of the hot water storage type hot water system 100 according to the present invention.
Hereinafter, the first predetermined amount q1 and the second predetermined amount q2 described above will be described in accordance with the present embodiment described above.
The first predetermined amount q1 is set in relation to the amount of water flowing from the first inlet E1.
In the following description, in order to facilitate understanding, the water flowing into the first inlet E1 is water from the relief valve 8, and the abnormality is caused by leakage from a diaphragm (not shown) provided in the relief valve 8. It is assumed that there is. Therefore, the amount of escape water generated in a normal state (“pota-pota water amount”) or the amount of water assumed when the diaphragm (not shown) provided in the relief valve 8 leaks into the first inlet E1 (“diaphragm”). Water leakage ”). According to the studies by the inventors, the former "pota-pota water amount" was about 11 cc / min, and the latter "diaphragm leakage amount" was about 2 to 8 liter / min.

  In the drainage equipment 50 according to the present invention, in consideration of detecting the blockage at the first outlet O1, when the inflow source S is in a normal state, the “pota-pota water amount” flows out only from the first outlet O1 (FIG. 2). (A)) Or, it is configured to flow out only from the second outlet O2 over the first overflow portion OF1 (FIG. 2 (b)). Here, in consideration of the "pota-pota water amount", when the "pota-pota water amount" flows into the first inlet E1 in the former state in which no blockage occurs, it is necessary to always flow out of the first outlet O1 to the outside ( (First regulation condition), in the latter state where the blockage occurs, even if the “pota-pota water amount” exceeds the first overflow portion OF1, the amount of water is always stored in the second storage portion S2 without being stored in the second storage portion S2. It is necessary to flow out from the second outlet O2 (second regulation condition).

  On the other hand, when the diaphragm leaks, when the leaked water flows into the first chamber R1 from the first inlet E1, the first storage in a state where a predetermined amount of water flows out from the first outlet O1. It is necessary to store in the section S1 and store in the second storage section S2 beyond the first overflow section OF1 (FIG. 2C) (third regulation condition).

  As described in the above-mentioned [Problems to be Solved by the Invention], the reason why a new drainage device 50 is required recently is that abnormality of the relief valve 8 is detected. In this case, the amount of water flowing into the first inlet E1 is defined as a first predetermined amount q1. On the other hand, the amount of water that is considerably smaller (less than half) than the first predetermined amount q1 and exceeds the maximum value of the “potapota water amount”, which is the relatively small amount of water described above, is the second predetermined amount q2. .

Thus, when the first predetermined amount q1 and the second predetermined amount q2 are set,
From the first regulation condition described above, the condition that the first outlet O1 should satisfy is that the water is inflowed through the first inlet E1 and the first storage part S1, and the second predetermined amount q2 or less. Is discharged, and when the amount of water exceeds the second predetermined amount, the first storage part S1 is configured as a flow rate-limiting outlet for storing water.

  Next, from the second regulation condition, when the amount of overflow water exceeding the first overflow portion OF1 is equal to or less than the second predetermined amount q2, overflow water from the second chamber R2 through the second outlet O2 is discharged. It is necessary to discharge the water directly to the outside, and when it exceeds the second predetermined amount q2, the overflow water is stored in the second storage part S2. This state corresponds to the third regulation condition, "when the amount of water flowing in from the first inlet E1 is equal to or more than the first predetermined amount q1, the overflow water needs to be stored in the second storage part S2. Satisfy.

  Therefore, when the inflow source S of the water to the first inflow port E1 is the relief valve 8, the first predetermined amount q1 is changed from the relief valve 8 in which the abnormality has occurred to the first relief valve 8 in the abnormal state. The amount of water expected to flow into the inflow port E1 (for example, 2 to 8 liter / min) can be set. In addition, the second predetermined amount q2 is variously set depending on the diameter of the first outlet O1 defined by the guide plate 53 and the size (height, volume) of the first storage part S1, It can be less than half of the predetermined amount q1, for example, about 100 to 500 cc / min.

  On the other hand, in a configuration in which surplus water from the expansion tank 10 receiving water supply from the water supply passage L1h flows into the first inflow port E1, the first predetermined amount q1 is set to, for example, a makeup water control valve provided in the expansion tank 10. The amount of water can be assumed to flow into the first inlet E1 from the expansion tank 10 in which an abnormality has occurred in the expansion tank 15 and is in an abnormal state.

  In the case of the hot water storage type hot water system 100 shown in FIGS. 5 and 6, water flows into the first inlets E1 (E1g, E1d) from the relief valve 8 and the expansion tank 10 described above. The detection target required on the tank 10 side is also considered.

[Another embodiment]
(1) In the above-described embodiment, the configuration including the first inlet E1 and the second inlet E2 has been described. However, the normality / abnormality of the inflow source S that flows the water of the first inlet E1 and the first In order to detect the blockage of the outflow port O1 separately, a drainage facility without the second inflow port E2 may be used.
FIG. 7 shows a configuration example in the case of the drainage apparatus 500 having this configuration and the single first inlet E1. In the case of this example, the water from the specific single inflow source S flows into the drainage device 500, and in a state where the first outlet O1 is not closed, the inflow amount is a relatively small second predetermined amount q2 or less. In the case of (1), the water is discharged from the first outlet O1, and when the amount is a relatively large first predetermined amount q1 or more, water is detected by the water detecting means s. Regarding the state in which water from the second predetermined amount q2 to the first predetermined amount q1 flows in, if the “outflow limited amount” and the “direct outflow upper limit amount” are the same according to the above configuration, the water flows in from the first inlet E1. When the amount of water is equal to or less than twice the second predetermined amount q2, no water is detected in the second storage unit S2 because storage in the second storage unit S2 does not occur. When it exceeds twice, the water detecting means s detects water.
On the other hand, in the state where the first outlet O1 is closed, the amount of the overflow water becomes the second predetermined amount q2 when the amount of water flowing from the first inlet E1 is equal to or more than the first predetermined amount q1. If it exceeds, water can be detected by the water detecting means s.

(2) The “direct outflow upper limit amount” may be equal to or more than the “outflow limit amount (second predetermined amount)” and less than the first predetermined amount.
As for the abnormality that occurs at the inflow source, the amount of water flowing into the drainage facility may increase with time from the “pota-pota water amount” corresponding to the normal state. In this case, it is preferable to flexibly set the "direct outflow upper limit amount" to be equal to or more than the "outflow limit amount (second predetermined amount)".

(3) The configuration including the plurality of first inflow ports E1 has been described as the first inflow port E1, but as shown in FIG. 7, it is specified as the inflow source S that flows water into the first inflow port E1. When the inflow source is a problem, a drainage system having a single first inlet E1 may be configured.
In the configuration including the single first inlet E1, a configuration including the second inlet E2 may be employed.

(4) In the above embodiment, as for the inflow source S, with respect to all of the relief valve 8, the expansion tank 10, and the check valve 14, the water from the valves 8, 10, 14 is set at a predetermined position of the drainage facility 50. Although it is configured to flow into the first inlet E1 and the second inlet E2 provided, the combination of the inflow portions of water from each valve corresponds to the amount of outflow water in the normal state and the amount of outflow water in the abnormal state of those valves. The combination can be changed as needed.

(5) Further, the valve for flowing water into the first inlet E1 is a hot-water storage type hot-water system configured to directly supply water to a hot-water storage tank via a pressure reducing valve provided in a water supply passage. In a system in which a relief valve is provided immediately below the tank on the water supply side of the tank, water from the relief valve may flow into the first inlet of the drainage equipment according to the present invention.

(6) In the above embodiment, the configuration is such that the overflow from the first storage section S1 to the second outflow port O2 descends from the upper end of the rising wall 52u to the second chamber R2 side via the guide plate 55 formed. However, in the rising wall provided between the first storage part S1 and the second outlet O2, a hole having a relatively small diameter is provided at a position higher than the entrance portion of the first outlet O1, and the second outlet is provided. A configuration in which a flow rate equal to or less than a predetermined amount flows into the second outlet O2 through the hole may be adopted. If this configuration is adopted, a structure in which the first outlet O1 is closed and the storage in the second storage portion S2 does not occur even when the “pota-pota flow rate” flows in can be achieved. In the case of this configuration, the upper end of the rising wall portion is configured so that water always overflows from the water surface rising to this position to the second storage portion S2, and from the second storage portion S2 to the second outlet O2. May be provided separately.

(7) In the embodiments described so far, the first chamber R1 provided with the first inlet E1 is provided with the first storage section S1 and the first outlet O1, and the first chamber R1 and the second chamber R2 are connected to each other. A first overflow section OF1 (inter-room advection section) is provided between the first overflow section OF1 and overflow water (flows from the first chamber R1 to the second chamber R2 across the inter-room advection section) (the second overflow section OF1). The structure in which the state in which the flow water flowing from the first chamber R1 to the second chamber R2 directly flows out from the second outlet O2 and the state in which the flow water is stored in the second storage part S2 has been described.
However, as is clear from Table 1 shown in paragraph [0084], "continuation of operation" and "maintenance required" relating to system operation determination can be performed regardless of opening and closing of the first outlet O1. is there. That is, the states 1 and 2 (states 4 and 5) shown in Table 1 can be collectively determined, and the state 3 (state 6) can be determined as an abnormal state corresponding to the states by the abnormal state determination unit m2.

This state means that the object of the present invention can be achieved even with a structure without the first outlet O1 as the structure of the drainage facility.
FIGS. 8A and 8B show another embodiment of the present invention having this structure.
Further, FIGS. 9A and 9B show states of the drainage device 501 shown in FIG. 8A corresponding to FIGS. 2B and 2C.
In these embodiments, the “direct outflow upper limit amount” can be set in the same manner as described above.

The drainage equipment 501 of another embodiment shown in FIG. 8A is an example in which both the first storage unit S1 and the first outlet O1 are removed from the first chamber R1, and another embodiment shown in FIG. 8B. Is an example in which only the first outlet O1 is removed. Both have a first chamber R1 and a second chamber R2 (having a second outlet O2 and a second storage section S2), a second storage section S2 having a water detecting means s, and being stored in the second storage section S2. Detects water flowing.
Here, the embodiment shown in FIG. 8A is the simplest configuration example. In this example, if there is a problem that water enters the second storage unit S2 for reasons such as falling water splashing, FIG. 8 (b) can also be adopted.

Table 2 below corresponds to Table 1.
In Table 2, the description of the first storage unit S1 and the first outlet O1 was removed, and the corresponding state numbers in Table 1 are described in parentheses () of the state number n.

FIGS. 9A and 9B show states corresponding to FIGS. 2B and 2C. In this embodiment, since the first storage part S1 and the first outlet O1 do not exist, the water flowing into the first chamber R1 directly flows into the second chamber R2. Then, in accordance with the relationship between the amount of the flow water and the “direct outflow upper limit amount” of the present application, the water flows out directly from the second outlet O2 or is stored in the second storage part S2, and overflows the second overflow part OF2. And spill.
The water detection means s detects only when water is stored in the second storage section S2.

Also in these other embodiments, when the judgment unit J is provided, there is no difference in that the normal state judgment unit m1 and the abnormal state judgment unit m2 are provided.
However, the blockage described in the previous example cannot occur in this embodiment because the first outlet O1 does not exist.

Normal state judging means Normal state judging means m1, when the water detecting means s does not detect water (see FIG. 9 (a)), the amount of water that exceeds the outflow limit directly from the inflow source S connected to the first inlet E1. It is determined that there is no inflow and that there is no inflow of water from the inflow source S connected to the second inlet E2.

Abnormal state determining means The abnormal state determining means m2 determines that an abnormal state has occurred only when the water detecting means s detects water (FIG. 9B).

  This abnormal state includes a state in which water exceeding the outflow restriction amount directly flows in from the first inlet E1 (see FIG. 9B). In addition, the case where an abnormality that causes water to flow into the second inflow port E2 at the inflow source S connected to the second inflow port E2 is naturally included.

  In this way, the drainage devices 501 and 502 according to the other embodiment are provided with the determiner J, so that the state of the inflow source S can be determined, and appropriate measures can be taken on the system side.

  In this embodiment, when an abnormal state is determined by the abnormal state determination unit m1, the state of the inflow source connected to the first inlet E1 or the second inlet E2 may be checked, and necessary processing may be performed.

1 heat source unit 2 hot water storage tank 8 relief valve (inflow source)
10 Expansion tank (inflow source)
14 Check valve (inflow source)
Reference Signs List 50 Drainage facility 100 Hot water storage type hot water system 500 Drainage facility 501 Drainage facility 502 Drainage facility E1 First inflow port E2 Second inflow port J Judge O1 First outflow port O2 Second outflow port OF1 First overflow section (room advancing section) )
OF2 Second overflow section R1 First chamber R2 Second chamber S Inflow source S1 First storage section S2 Second storage section m1 Normal state determining means m2 Abnormal state determining means q1 First predetermined amount (first predetermined flow rate)
q2 Second predetermined amount (second predetermined flow rate)
s water detection means

Claims (13)

An inflow port into which water flows, a storage section in which the water flowing in from the inflow port is stored, and an outflow port in which the water flowing in from the inflow port flows out, and water detection means for detecting water stored in the storage section is provided. Drainage system,
A first chamber having a first inlet as the inlet,
A second chamber configured to communicate with the first chamber and receive flow water flowing from the first chamber; and a second outlet through which water flowing into the chamber flows out is provided in the second chamber. As an outflow port, a second storage unit that stores inflow water is provided as the storage unit, and the water detection unit that detects water stored in the second storage unit is provided.
Relates to the aforementioned flow water, the upper limit water flow amount flowing out from said first said second chamber directly flows into the second outlet from the first chamber, a predetermined direct runoff limit flow amount is set,
Flow rate of the flow water, wherein when it is less direct runoff limit flow amount, the flow water through the second outlet from the second chamber is discharged to the outside,
If the flow rate of the flow water exceeds the direct outflow upper flow quantity, wherein the flow water in the second reservoir is stored, drainage for detecting the water the water detecting means is stored in the second storage unit . An inter-chamber advection unit for allowing water flowing from the first inlet to flow into the second chamber;
In the water advancing direction in the inter-room advection section, the second outlet is provided on a side close to the first chamber, and the second storage section is provided on a side away from the first chamber,
If the flow rate of the flow water exceeds the direct outflow upper flow quantity, the flow water past the second outlet flows into the second reservoir, drainage of claim 1 wherein the stored. The first chamber includes a first storage unit and a first outlet,
Said first outlet port, the water together with flowing of the first reservoir, when said inflow water flow amount flowing to the first reservoir exceeds the outflow restricted flow amount of less than or equal to the direct outflow upper flow amount The drainage facility according to claim 1, wherein the drainage facility is configured as a flow rate limiting type outlet in which water is stored in the first storage unit. A second overflow portion in which the stored water overflows from the second storage portion to the second outlet,
The drainage facility according to any one of claims 1 to 3, wherein the second overflow section is provided at a position lower than a first overflow section where water overflows from the first chamber to the second chamber.   5. The drainage device according to claim 1, further comprising a plurality of first inlets as the first inlet, wherein water from different inflow sources individually flows into different first inlets. 6.   The drainage device according to any one of claims 1 to 5, further comprising an abnormal state determination unit that determines that there is an abnormal state when the water detection unit detects water. When the water detecting unit detects water, an abnormal state determining unit that determines that there is an abnormal state is provided,
The abnormal condition, comprising an inlet former abnormal closed state in which the water first outlet exceeds the direct outflow upper flow amount occluded and the first inlet flows,
In the abnormal state, the drainage of the direct runoff limit flow amount of water or less does not include the flow based on a normal closed state flowing claim 3 wherein said first outlet is closed and the first inlet.   The second chamber includes a second inlet into which water flows from a source different from the water flowing into the first inlet, and the water flowing from the second inlet is stored in the second storage portion. The drainage device according to any one of claims 1 to 7, wherein the water overflows from the second storage portion and flows out from the second outlet. A hot-water storage type hot-water system that uses hot water supplied from the hot-water storage tank to heat hot water and obtain hot water by heat supplied from the heat source device, and includes a hot-water storage tank that stores generated hot water,
A configuration in which escape water flows into the first inlet from an escape valve provided in a circulation path of hot water discharged from the hot water storage tank or a supply path of water supplied to the hot water storage tank or both,
When the direct outflow upper flow amount, the relief inlet water flow amount or more from the valve in a normal state, the abnormal to the relief valve flows from relief valve in the said abnormal condition occurs in the first inlet, hot water storage type hot-water system with a drainage of any one of claims 1 to 8, it flows into the second chamber from the first chamber is set lower than the water flow amount envisaged. A hot-water storage type hot-water system that uses hot water supplied from the hot-water storage tank to heat hot water and obtain hot water by heat supplied from the heat source device, and includes a hot-water storage tank that stores generated hot water,
A structure in which surplus water from an expansion tank receiving water supply from a water supply channel flows into the first inlet,
When the direct outflow upper flow amount, the expansion tank inlet water flow amount or more from that in the normal state, the abnormality in said expansion tank flows from the expansion tank is to the abnormal state occurring in the first inlet, hot water storage type hot-water system with a drainage of any one of claims 1 to 8, it flows into the second chamber from the first chamber is set lower than the water flow amount envisaged. The second chamber includes a second inlet through which water flows from an inflow source different from water flowing into the first inlet,
The hot water storage type hot water system according to claim 9 or 10, wherein surplus water flows into the second inlet from a check valve provided in the hot water path. A hot-water storage type hot-water system that uses hot water supplied from the hot-water storage tank to heat hot water and obtain hot water by heat supplied from the heat source device, and includes a hot-water storage tank that stores generated hot water,
The hot-water storage type hot water system provided with a drainage device according to claim 8, wherein surplus water flows into the second inlet from a check valve provided in the hot water path. A hot-water storage type hot-water system that uses hot water supplied from the hot-water storage tank to heat hot water and obtain hot water by heat supplied from the heat source device, and includes a hot-water storage tank that stores generated hot water,
A plurality of first inlets are provided as the first inlet, and water from different inlets individually flows into different first inlets, and flows into the second chamber into the first inlet. Equipped with the drainage device according to any one of claims 1 to 8, having a second inlet into which water flows from an inflow source different from water,
The escape water flows into the first inlet from a relief valve provided in a circulation path of hot water discharged from the hot water storage tank, a supply path of water supply to the hot water storage tank, or both, and is connected to the relief valve. Excess water from the expansion tank, which receives water from the water supply passage, flows into the first inlet, which is different from the first inlet, and further flows from the check valve provided in the hot water path to the second inlet. Hot water storage type hot water system into which surplus water flows.

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