JP3515366B2 - Drain neutralizer - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain neutralization device, and more particularly to a drain neutralization device for neutralizing drain generated by condensation of water vapor in combustion exhaust gas by using a neutralizing agent.

[0002]

2. Description of the Related Art There is a recent hot water heater which has improved heat exchange efficiency by absorbing latent heat in addition to sensible heat from combustion exhaust gas in its heat exchanger for heating hot water. In this case, since the combustion exhaust gas is cooled to a temperature below the dew point, the water vapor in the combustion exhaust gas is condensed and a large amount of drain is generated. Therefore, the water heater is provided with a discharge path for discharging the drain.

However, since this drain has a high acidity due to the dissolution of the acidic components contained in the combustion exhaust (for example, about pH 3), it is necessary to neutralize the drain in the middle of the discharge route. A drain neutralization device is provided. FIG. 7: is a figure which shows the outline of a structure of the conventional drain neutralization apparatus. The drain neutralization device shown in the figure is configured to include a drain tank (9) in which the drain flows and is stored. The drain tank (9) is filled with the drain from the discharge route and stored. The storage chamber (9a) is provided with a siphon (9b) for discharging the drain stored in the drain tank (9). A predetermined amount of solid neutralizing agent (90) for neutralizing drain is stored in the storage chamber (9a) in advance.

In this case, the water level of the drain in the drain tank (9) rises as the drain flows into the drain tank (9), but when the water level reaches the maximum water level shown in FIG. Is discharged by siphon (9b), and the water level is shown in Fig. 7.
-Lowest water level shown in b. That is, a certain amount of drain from the lowest water level to the highest water level is discharged.
After this, the drain that has flowed into the drain tank (9) is stored again in the predetermined amount. In this way, drain storage and discharge are alternately repeated.

At the time of storage, the drain tank
The acidic drain in (9) reacts with the neutralizing agent (90) to change the pH value to the alkaline side and is neutralized.

[0006]

In this case, when the amount of combustion in the water heater changes, the amount of drain generated also changes, and in the drain tank (9), when the drain is stored once. The storage time before discharge changes. However,
If the amount of drain generated is small and the storage time is too long, the contact time between the neutralizing agent (90) and the drain becomes long, so the reaction with the neutralizing agent (90) becomes an overreaction, It becomes alkaline beyond the standard range of neutralization (for example, pH 5.8 to 8.6).

On the contrary, when the amount of drain generated is large and the storage time is too short, the contact time between the neutralizing agent (90) and the drain becomes short, so that the reaction with the neutralizing agent (90) occurs. If it becomes insufficient, it will not reach the above-mentioned standard range of neutralization, and will be discharged in an acidic state. Therefore, with this, the drain neutralization performance tends to be unstable. An object of the present invention is to stabilize the drain neutralization performance.

[0008]

[Means for Solving the Problems] The means for solving the problems of the present invention, which has been devised in order to solve the above-mentioned problems, is that "a drain tank for storing a drain generated by condensation of water vapor in combustion exhaust gas is provided. While neutralizing the drain in the tank using a neutralizing agent, when the storage amount of the drain reaches a predetermined amount, a certain amount of drain is discharged from the drain tank, and the certain amount of drain is stored and discharged. A drain neutralization device that repeats alternately as one cycle, comprising a detection means for detecting the one cycle, and an amount of a neutralizing agent suitable for neutralizing the certain amount of drain in response to the output of the detection means. And a charging means for charging, into the drain tank, a neutralizing agent which is in a fluidized state and melts in the drain and is discharged together with the drain during the discharging, the charging means preliminarily stores the neutralizing agent. Container and the detection hand In response to the output of the separating agent for separating a certain amount of the neutralizing agent from the neutralizing agent in the container into the drain tank, the outlet of the container with respect to the separating and charging mechanism. It is detachably connected ”.

In this case, since the neutralizing agent in an amount suitable for neutralizing the fixed amount of the drain is charged into the drain tank every one cycle of storing and discharging the fixed amount of the drain, The drain is discharged from the drain tank in a neutralized state. In this case, since the neutralizing agent in an amount suitable for neutralizing the certain amount of drain in the drain tank reacts, the amount of drain generated is small and the drain storage time in the drain tank becomes long. However, the drain and the neutralizing agent do not react excessively. On the contrary, even if a large amount of drain is generated, insufficient neutralization of drain does not occur.

Further, the added neutralizing agent is melted in the drain to be in a fluidized state and discharged together with the certain amount of the drain, and at the time of the next neutralization, the neutralizing agent is newly added,
During the next neutralization, neither too much nor too little of the neutralizing agent reacts with the above-mentioned certain amount of drain. Also in this respect, the reaction between the drain and the neutralizing agent becomes appropriate. The neutralizing agent may be completely soluble in the drain or partially insoluble as long as it is in a fluidized state in which the neutralizer is melted in the drain and discharged together with the drain. Further, the neutralizing agent may be in the form of powder or liquid, as well as solid.

The detecting means may have a mechanical structure, an electrical structure, or a combination thereof. The same applies to the charging means.

[0012]

As described above, according to the present invention, even if the amount of drain generated is small and the drain storage time in the drain tank is long, the drain and the neutralizing agent do not excessively react with each other and the amount of drain generated Even if the amount is large, the drain neutralization performance is stable because the drain is not insufficiently neutralized. Further, at the time of the next neutralization, the neutralizing agent that reacts with the above-mentioned fixed amount of drain is neither too much nor too little, and the reaction between the drain and the neutralizing agent becomes appropriate. However, the drain neutralization performance is stable.

Further, since the neutralizing agent is introduced into the drain tank in an amount suitable for a certain amount of drain, the number of times of neutralization is increased unlike the conventional one in which the neutralizing agent is arranged in advance in the drain tank. Therefore, the inconvenience that the neutralization performance is deteriorated does not occur. In addition, since a new neutralizing agent is added to the drain tank each time it is used, it is possible that impurities and the like will adhere to the surface of the neutralizing agent over time and the neutralizing performance will deteriorate as in the conventional one described above. No inconvenience occurs. Still further, the charging means separates a predetermined amount of the neutralizing agent from the neutralizing agent in the container in response to the output of the detecting means and a container that stores the neutralizing agent in advance in the drain tank. A neutralization agent is provided in the container in advance, and a predetermined amount of the neutralization agent is separated from the neutralization agent in the container by the separation and introduction mechanism at the predetermined time. It is put in the tank. And
Since the outlet of the container is detachably connected to the separating and charging mechanism, if a plurality of these neutralizing agents and containers are prepared in advance as one unit, the neutralization can be performed only by replacing the unit. The agent can be replenished, and this replenishment becomes easy.

[Others] [a] Another solution of the present invention, which has been devised to solve the above-mentioned problem, is to have a drain tank in which the drain generated by the condensation of water vapor in the combustion exhaust is stored. A drain neutralization device for neutralizing the drain in the drain tank using a neutralizing agent, and discharging a constant amount of drain from the drain tank each time the storage amount of the drain reaches a predetermined amount, Detecting means for detecting a predetermined time from the completion of the discharging operation to the start of the next discharging operation, and an amount suitable for neutralizing the certain amount of drain in response to the output of the detecting means. A neutralizing agent, which is a neutralizing agent that melts in the drain and becomes a fluidized state that is discharged together with the drain during the next discharging operation, and a charging means that charges the drain tank, and the charging means includes A container for previously containing the neutralizing agent, and A separating and charging mechanism that separates a certain amount of the neutralizing agent from the neutralizing agent in the container into the drain tank in response to the output of the knowing means, and the outlet of the container serves as the separating and charging mechanism. In contrast, it is detachably connected ”.

In this case, at a predetermined time between the completion of the discharging operation and the start of the next discharging operation,
Since the neutralizing agent in an amount suitable for neutralizing the fixed amount of drain is put into the drain tank, the fixed amount of drain is discharged from the drain tank in the next discharging operation in a neutralized state. With this one, for the above-mentioned fixed amount of drain in the drain tank,
Since an amount of the neutralizing agent that is suitable for neutralizing this reacts, the drain and the neutralizing agent do not excessively react even if the amount of generated drainage is small and the storage time of the drain in the drain tank is long. On the contrary, even if a large amount of drain is generated, insufficient neutralization of drain does not occur. Therefore, the drain neutralization performance is stable.

Further, the added neutralizing agent is melted in the drain to be in a fluidized state and is discharged together with the predetermined amount of the drain, and at the time of the next neutralization, the neutralizing agent is newly added,
During the next neutralization, neither too much nor too little of the neutralizing agent reacts with the above-mentioned certain amount of drain. Therefore, also in this respect, the reaction between the drain and the neutralizing agent becomes appropriate, and the drain neutralizing performance is improved.

Further, since the neutralizing agent is introduced into the drain tank in an amount suitable for a certain amount of drain, the number of times of neutralization is increased as in the conventional one in which the neutralizing agent is arranged in advance in the drain tank. Therefore, the inconvenience that the neutralization performance is deteriorated does not occur. In addition, since a new neutralizing agent is added to the drain tank each time it is used, it is possible that impurities and the like will adhere to the surface of the neutralizing agent over time and the neutralizing performance will deteriorate as in the conventional one described above. No inconvenience occurs. Still further, the charging means separates a predetermined amount of the neutralizing agent from the neutralizing agent in the container in response to the output of the detecting means and a container that stores the neutralizing agent in advance in the drain tank. A neutralization agent is provided in the container in advance, and a predetermined amount of the neutralization agent is separated from the neutralization agent in the container by the separation and introduction mechanism at the predetermined time. It is put in the tank. And
Since the outlet of the container is detachably connected to the separating and charging mechanism, if a plurality of these neutralizing agents and containers are prepared in advance as one unit, the neutralization can be performed only by replacing the unit. The agent can be replenished, and this replenishment becomes easy.

The neutralizing agent may be either completely soluble in the drain or partially insoluble as long as it is in a fluid state in which it is dissolved in the drain and discharged together with the drain. Further, the neutralizing agent may be in the form of powder or liquid, as well as solid. The detecting means for determining the timing of supplying the neutralizing agent is, for example, a drain as long as it detects a predetermined time from the completion of the discharging operation to the start of the next discharging operation. It may be possible to detect that the storage amount of the drain in the tank has become a set amount smaller than the predetermined amount. Further, the detecting means may have a mechanical structure or an electric structure, and may further have a combination thereof. The same applies to the charging means.

[Item b] In the above invention or item a,
In the "the neutralizer is formed into a solid and foams in the drain", the neutralizer is a solid,
By foaming in the drain, it quickly melts and becomes the above-mentioned fluidized state. In this product, the neutralizer is solid,
It is easy to handle such as separation and input.

[C] In the above-mentioned invention, item a or b, "provided with a stirring means for stirring the drain in the drain tank at the time of the neutralization reaction after the charging", the drain is agitated. And the neutralizing agent are mixed, and the neutralizing agent is quickly dissolved in the drain to be in the above fluidized state. [D] The invention described above, in any of a to c,
In the "wherein the detecting means includes a water level detecting means for detecting the water level of the drain in the drain tank", the neutralizing agent is reached when the water level of the drain in the drain tank reaches a predetermined water level lower than the maximum water level. A predetermined time for turning on is detected.

In this structure, since the change in the water level is used to detect the predetermined time, the detection of the predetermined time is reliable and easy.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.
It will be described with reference to the drawings. [First Embodiment] FIG. 1 is a diagram showing an initial state of the drain neutralization apparatus (100) according to the first embodiment of the present invention when the drain is stored, and FIG. 2 is a drain neutralization apparatus (100). FIG. 3 is a diagram showing the time when the neutralizing agent is charged, FIG. 3 is a diagram showing the time when the drain neutralization device (100) starts discharging the drain, and FIG. 4 is a diagram showing the time when the drain neutralizing device (100) ends the drain discharging. FIG.

As shown in FIG. 1, the drain neutralizer (100) is attached to a water heater (7) which produces drain due to absorption of latent heat from combustion exhaust. ), The drain tank (1) provided at the tip of the drain pipe (13) that guides the drain from the water heater (7), and the neutralizer (8) is charged into this drain tank (1) at a predetermined timing. And a charging device (2) for operating.

As shown in FIG. 1, the water heater (7) includes a burner (73) for generating combustion exhaust, a main heat exchanger (71) for absorbing sensible heat from the combustion exhaust, A sub-heat exchanger (72) that further absorbs latent heat from the combustion exhaust gas is housed in a can body (70). In this water heater (7), due to the absorption of latent heat, a drain adheres to the surface of the sub heat exchanger (72), and this drain drops and is connected to the bottom of the can body (70). ) Flow into.

[Constitution of each part of drain neutralizer (100)] * Drain tank (1) * Drain tank (1) is a rectangular parallelepiped-shaped container, and as shown in FIG. ) Is inserted from above, and the discharge pipe (12) is located on the side of this storage chamber (1a).
Consists of a siphon chamber (1b) inserted from below. The siphon chamber (1b) and the discharge pipe (12) function as a siphon for drain discharge as described later.

The storage chamber (1a) and the siphon chamber (1b) are communicated with each other through an opening (15a) formed below a boundary wall (15) between them, and are connected to the drain pipe (13). Storage chamber (1a)
The drain that has flowed into is stored in these storage chamber (1a) and siphon chamber (1b). Then, along with the drain inflow, the drain tank (1) (reservoir (1a) and siphon chamber (1
The water level of the drain stored in b)) rises.

Further, the discharge pipe (12) extends upward in the siphon chamber (1b), and the upper end of the discharge pipe (12) is connected to the constituent wall (16) at the upper end of the siphon chamber (1b). It is located with a gap (H) (for example, 5 mm) between them. And the drain tank
(1) Even if the water level of the drain inside the drain exceeds the upper end of the discharge pipe (12) (for example, a diameter of 6 mm) due to its rise, the drain blocks the discharge pipe (12) by surface tension, and the further raised water level reaches the predetermined water level ( When the maximum water level is reached, the drain that has blocked the discharge pipe (12) flows into the discharge pipe (12). And, the above-mentioned gap (H) is such that, in consideration of the diameter of the discharge pipe (12), the surface tension of the drain, and the speed at which the water level of the drain rises, no air pool is formed below the constituent wall (16) when the water level rises. Is set to. In this case, the highest water level is set to the water level that matches the constituent wall (16) as shown in FIG.

In this case, the drain is drained from the siphon chamber (1b) by the drain inflow into the discharge pipe (12), and the drain is sucked from the storage chamber (1a) to the siphon chamber (1b). The water level of the drain in the room (1a) goes down. Then, when this water level becomes lower than the lower end of the boundary wall (15) and air enters the siphon chamber (1b) through the air holes (K) and the opening (15a) of the storage chamber (1a). Then, the siphon room (1
Drain discharge from b) is completed, and the drain water level in the drain tank (1) becomes the minimum water level as shown in Fig. 4. That is, a certain amount of drain from the lowest water level to the highest water level is discharged.

In the drain tank (1), the storage and discharge of the fixed amount of drain are alternately repeated as described above. * Neutralizer (8) and charging device (2) * In this, a solid neutralizer (8) is used to neutralize the drain stored in the drain tank (1). The admixture (8) is a sphere and is composed of a component that is much more easily soluble in the drain than conventional ones. Moreover, this neutralizing agent (8) contains a component (foaming agent) that produces bubbles when it contacts the drain. In this drain neutralizer (100),
A large number of neutralizing agents (8) of the same diameter and weight are used.

As shown in FIG. 1, the charging device (2) comprises a container (2a) containing the above-mentioned neutralizing agent (8) group in advance, and this container.
It is composed of a separating and charging mechanism (2b) for separating the neutralizing agent (8) in (2a) one by one and charging it into the drain tank (1). The container (2a) has a structure in which an outlet portion (21) for the neutralizing agent (8) is formed at one end of the container (2a), and the container (2a) is in a downward position in which the outlet portion (21) opens downward. used.

The separating and charging mechanism (2b) guides the hollow main body (23) connected to the upper end of the drain tank (1) and the neutralizing agent (8) to the main body (23). And a passage portion (22). The passage portion (22) is open upward, and at the open end thereof, the outlet portion (21) of the container (2a) in the downward posture.
Is detachably connected. And this passage part (22),
The passage portion (22) is formed in such a size that the neutralizing agent (8) supplied from the container (2a) is aligned in a row downward.
At the boundary between the lower end of the main body (23) and the main body (23), openings (2) for inserting the neutralizing agents (8) in the passage (22) one by one to the main body (23) side are inserted.
4) has been formed.

A wall portion (27) extending vertically is formed in the main body portion (23) so as to face the opening (24). The wall portion (27) and the opening () in the main body portion (23) are formed. Between the surrounding composition wall of 24),
By these, a take-out member (25) for holding the neutralizing agent (8) slidably held in the vertical direction is arranged. These wall portion (27) and extraction member (25) are the extraction member (25).
Only one neutralizer (8) is placed on the take-out member (25) through the opening (24) when the lower end contacts the lower end of the main body (23). Then, the take-out member (25) lifts the neutralizing agent (8) to above the wall portion (27) and opens (2).
4) is configured to be closed. Also, take-out member (25)
Is equipped with a locking piece (25a) that engages with the lower end of the wall (27) so that the neutralizer (8) is prevented from further lifting when it is lifted above the wall (27). It has been configured.

Further, the upper end surface of the take-out member (25) has a passage portion (2
It is an inclined surface that descends toward the side opposite to 2), and the neutralizer (8) lifted above the wall (27) by this take-out member (25) removes the wall (27). It crosses and falls into the space on the opposite side. Also, at the boundary between the main body (23) and the drain tank (1),
A hole (14) for allowing the neutralizing agent (8) to pass through is formed. Therefore, the neutralizing agent (8) dropped from the extraction member (25)
It is put into the storage chamber (1a) through the hole (14).

The separating and charging mechanism (2b) has a rod (2) extending downward from the take-out member (25) and entering the storage chamber (1a).
6) is provided, and at the lower end of this rod (26), the storage chamber
The float (3) floating on the drain in (1a) is integrated. Therefore, the float (3) rises and falls according to the change of the drain water level in the storage chamber (1a) within a predetermined range, whereby the take-out member (25) rises and falls as described above.

[Use of drain neutralizer (100)]
In the drain neutralization device (100), as described above, the drain flowing into the storage chamber (1a) from the drain pipe (13) is
As shown in (3), the water is stored in the drain tank (1) (the storage chamber (1a) and the siphon chamber (1b)), and the water level of the drain in the drain tank (1) rises with this drain inflow.

In this structure, the drain is in contact with the float (3) while the water level is rising, and the float (3) floats on the drain. Therefore, as the water level rises after this, the float (3)
(25) rises, and due to this rise, one neutralizer (8) on the take-out member (25) moves upward, and at the same time, the take-out member
The opening (24) is closed at (25).

As a result of this rise, as shown in FIG. 2, when the water level of the drain in the drain tank (1) reaches a set water level which is slightly lower than the maximum water level, the neutralizing agent ( 8)
Is set to cross the wall (27). Therefore, when the drain water level reaches the set water level, the charging device (2)
From this, one neutralizer (8) is charged into the storage chamber (1a). Then, the neutralizing agent (8) charged into the storage chamber (1a) is melted while foaming in the drain and undergoes a neutralization reaction with the drain. At this time,
Since the foaming agent contained in the neutralizing agent (8) reacts with the drain to form a foamed state, a large number of pores are formed, the contact area with the drain increases, and the neutralizing agent easily collapses in the drain. Therefore, it melts quickly and completely in the drain. As a result, a fluidized state is created in which the drain is discharged together with the drain when the drain is discharged. The amount of this neutralizing agent (8) per one is set to an amount suitable for neutralizing a fixed amount of drain from the lowest water level to the highest water level in the drain tank (1).

After this, as shown in FIG. 3, the drain tank (1)
The water level of the drain inside reaches the maximum water level, but at this point, the neutralizing agent (8) is completely dissolved in the drain, and the pH value of the certain amount of drain is within the standard range (for example, pH 5.8).
~ 8.6). Further, when the water level reaches the maximum water level, the siphon operation described above is started. When the drain water level reaches the minimum water level as shown in FIG. 4 by this drain discharge, drain discharge is completed.

While the drain water level is from the set water level to the highest water level, as shown in FIG. 3, the locking piece (2
5a) is engaged with the lower end of the wall portion (27) in a rising prevention state,
The float (3) is submerged in the drain. When drainage is discharged, the float (3)
And the take-out member (25) also descends and returns to the respective initial positions.

In this case, the storage time at the time of one storage in the drain tank (1) changes according to the change in the drain generation rate, but with respect to the above-mentioned constant amount of drain in the drain tank (1), The amount of the neutralizing agent (8) that reacts with each other is an amount suitable for neutralizing the above-mentioned fixed amount of drain at any storage time. Therefore, even if the drain generation rate is low and the drain storage time in the drain tank (1) is long, the drain and the neutralizing agent (8) do not react excessively, and conversely, the drain generation rate is high. However, insufficient drain neutralization does not occur. Therefore, this drain neutralizer (100)
Then, the drain neutralization performance becomes stable.

The neutralizing agent (8) charged is melted in the drain to be in a fluidized state and discharged from the drain tank (1) together with the predetermined amount of drain, and at the time of the next neutralization, a new medium is added. Japanese medicine
Since (8) is added, the neutralizing agent (8) that reacts with the predetermined amount of drain during the next neutralization is neither too much nor too little. Therefore, also in this respect, the reaction between the drain and the neutralizing agent becomes appropriate, and the drain neutralizing performance becomes stable.

In this case, since the neutralizing agent (8) is charged into the drain tank (1) in an amount suitable for the above-mentioned fixed amount of drain,
There is no inconvenience that the neutralization performance decreases as the number of times of neutralization increases, unlike the conventional one in which the neutralizing agent is placed in the drain tank (1) in advance. In addition, since a new neutralizing agent (8) is put into the drain tank (1) every time it is used, impurities and other substances may adhere to the surface of the neutralizing agent over time like the conventional one described above. There is no inconvenience such as deterioration of the sum performance.

In this case, although the neutralizing agent (8) is solid, it foams in the drain, so that it is easily dissolved quickly. Further, since the neutralizing agent (8) is a solid, it is easy to handle such as separation and addition. In addition, a container (2
Since a) is detachable from the separating and charging mechanism (2b), it is only necessary to replace these units if a plurality of these neutralizing agent (8) groups and containers (2a) are prepared in advance as one unit. The neutralizer (8) can be replenished with, and this replenishment becomes easy.

Further, in this device, the predetermined time for the neutralizing agent (8) to be charged between the completion of the discharging operation of the discharging mechanism and the start of the next discharging operation is within the drain tank (1). Since the change is detected by using the change in the water level of the drain, the detection at the predetermined time is reliable and easy. In the first embodiment,
As the detection of the predetermined time, the fact that the water level in the drain tank (1) reached the predetermined water level was detected by a mechanical structure such as a float (3), but this was detected by an electrical structure. Good. In the first embodiment, the neutralizing agent
Although a mechanical structure is used as a means for charging (8) into the drain tank (1), an electric structure may be used together. [Embodiment 2] FIG. 5 is a diagram showing a drain neutralizer (100a) according to Embodiment 2 of the present invention when a neutralizing agent is charged, and FIG. 6 is a drain neutralizer of FIG. It is a perspective view of a disc (41) of (100a).

In the second embodiment, as shown in FIG. 5, a water level sensor (51) is mounted on the wall of the storage chamber (1a) at a position corresponding to the set water level. (51) is electrically connected to the control circuit (6).
As the neutralizing agent (8), the same one as in Embodiment 1 above is used, and the charging device (4) for charging this neutralizing agent (8) into the drain tank (1) is A container (4a) similar to the above-mentioned container (2a), and a separation charging mechanism (4b) in which this container (4a) is mounted.
And are provided.

In the separating and charging mechanism (4b), a horizontal thick disk (41) housed in a casing (40) and this disk (41)
And a motor (42) for rotationally driving the motor. Disk
(41) has a pair of holes that can accommodate one neutralizer (8) each.
(411) is formed so as to penetrate vertically, and these holes (4
As shown in FIG. 6, 11) are arranged so as to be lined up on the diameter line in a plan view.

The casing (40) is constructed so as to be substantially in contact with the entire upper surface and lower surface of the disc (41).
In one of the positions corresponding to each of the holes (411) in (40), the inlet (401) into which the neutralizing agent (8) from the container (4a) enters
On the other hand, an outlet portion (402) for allowing the neutralizing agent (8) to escape to the storage chamber (1a) is formed on the other side. In addition, the motor
(42) is electrically connected to the control circuit (6).

The control circuit (6) has a water level sensor indicating that the water level of the drain in the drain tank (1) has risen and reached the set water level.
A determination function unit that determines based on the output signal of (51) and a control function unit that controls the motor (42) so that the disc (41) rotates 180 ° in response to this determination are provided. There is. In this case, one neutralizer (8) is stored in the hole (411) on the inlet side (401) side, and the water level of the drain in the drain tank (1) rises to reach the set water level. Then, the disc (41) is 180 °
Rotate and the hole (411) on the inlet (401) side will be
Consistent with (402), the neutralizer (8) is put into the storage chamber (1a). At the same time, the hole (411) on the outlet (402) side coincides with the inlet (401), and a new neutralizing agent (8) is stored in this hole (411). .

With this structure, the same operation and effect as those of the above-described first embodiment are achieved. [Other Embodiments]. In Embodiments 1 and 2 above, the neutralizing agent (8) is made to contain the foaming agent so that it can be quickly dissolved in the drain. However, the means for stirring the drain in the storage chamber (1a) The neutralizing agent may be easily dissolved. As this means, for example, a rotary blade arranged in the storage chamber (1a) may be used, or a configuration in which the drain in the storage chamber (1a) is vibrated may be used. In this case, since the drain and the neutralizing agent are mixed by stirring, the neutralizing agent is quickly dissolved in the drain to be in the fluidized state. Furthermore, both of these configurations may be used together.

.. In Embodiments 1 and 2 described above, the neutralizing agent (8) which is completely dissolved in the drain is used, but as long as it dissolves into the above fluidized state, a part thereof may not be dissolved. Further, as the neutralizing agent, in addition to the spheres described above,
For example, it may be a rectangular parallelepiped or a flat plate. Further, in addition to solid, it may be in powder form or liquid form. In the case of powder, the above-mentioned ones shown in FIGS. 1 and 5 may be used as they are.

.. In the first and second embodiments described above, the fact that the water level has reached the set water level higher than the minimum water level is detected, and the neutralizer (8) is put into the drain tank (1). Detecting that it is at the lowest water level, that is, the storage amount of the above-mentioned fixed amount of drain in the drain layer (1) is "0",
A neutralizing agent (8) may be added. In this case, for example, a configuration can be adopted in which a water flow switch is provided in the discharge pipe (12) to detect the end of drain discharge by the siphon.

.. In the above-described first and second embodiments, the siphon is used as a means for discharging the drain from the drain tank (1), but the drain is discharged from the drain tank when the storage amount of the drain reaches the certain amount. Other configurations can be used as long as For example, a ball tap or a solenoid valve may be used.

[Brief description of drawings]

FIG. 1 is a diagram showing an initial state of the drain neutralization device (100) according to the first embodiment of the present invention during drain storage.

FIG. 2 is a diagram showing a neutralizer added to the drain neutralizer (100).

FIG. 3 is a diagram showing the start of drain discharge of the drain neutralizer (100).

FIG. 4 is a diagram showing the end of drain discharge of the drain neutralizer (100).

FIG. 5 is a diagram showing a state in which a neutralizer is put into the drain neutralization device (100a) according to the second embodiment of the present invention.

6 is a perspective view of a disc (41) of the drain neutralization device (100a) of FIG.

FIG. 7 is a diagram showing an outline of the configuration of a conventional drain neutralization device.

[Explanation of symbols]

(100) ・ ・ ・ Drain neutralizer (8) ・ ・ ・ Neutralizer (1) ... Drain tank (2) ・ ・ ・ Loading device (3) ・ ・ ・ Float (26) ・ ・ ・ Stick (25) ・ ・ ・ Extraction member (27) ... Wall

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI C02F 1/66 530 C02F 1/66 530B 530K 530Q (72) Inventor Katagiri Adult 26-2 Fukuzumicho, Nakagawa-ku, Nagoya In-house (72) Inventor Shimozono Kyushu Man No. 45-42, Uraga-cho, Yokosuka City, Kanagawa Prefecture (72) Inventor Daisuke Koshimizu 38-37, Shirahatakamicho, Kanagawa-ku, Yokohama-shi, Kanagawa Tokyo Gas Shirara Apartment 102 (56) References JP 62-294493 (JP, A) JP 59-127692 (JP, A) JP 6-320171 (JP, A) JP 9-26292 (JP, A) (58) Survey Areas (Int.Cl. ⁷ , DB name) F23L 17/14 C02F 1/66 510 C02F 1/66 521 C02F 1/66 530

Claims (5)

(57) [Claims] 1. A drain tank for storing drain generated by condensation of water vapor in combustion exhaust gas is provided. The drain in the drain tank is neutralized with a neutralizing agent, and the drain storage amount is reduced. When a predetermined amount is reached, a certain amount of drain is discharged from the drain tank, and the storage and discharge of the certain amount of drain are performed in 1
A drain neutralization device that repeats alternately as a cycle, comprising a detection means for detecting the one cycle, and an amount of a neutralizing agent suitable for neutralizing the certain amount of drain in response to the output of the detection means. And a charging means for charging a neutralizing agent in a fluidized state that is melted in the drain and discharged together with the drain at the time of discharging, into the drain tank, and the charging means stores the neutralizing agent in advance. A container and a separating and charging mechanism for separating a certain amount of the neutralizing agent from the neutralizing agent in the container in response to the output of the detecting means and charging the neutralizing agent into the drain tank. A drain neutralization device that is detachably connected to the separation input mechanism. 2. A drain tank for storing the drain generated by condensation of water vapor in the combustion exhaust gas is provided. The drain in the drain tank is neutralized with a neutralizing agent, and the drain storage amount is reduced. A drain neutralization device that discharges a certain amount of drain from the drain tank every time a predetermined amount is reached, and detects a predetermined time between the completion of the discharging operation and the start of the next discharging operation. And a flow of a neutralizing agent in an amount suitable for neutralizing the fixed amount of drain, which is melted in the drain and discharged together with the drain during the next discharging operation in response to the output of the detecting unit. A charging means for charging the neutralizing agent in a state into the drain tank, wherein the charging means stores the neutralizing agent in advance, and the container in the container in response to the output of the detecting means. Separate a certain amount of neutralizing agent from the neutralizing agent A drain neutralization device, comprising a separation charging mechanism for charging the drain tank, and an outlet of the container being detachably connected to the separation charging mechanism. 3. The drain neutralization device according to claim 1, wherein the neutralizing agent is formed into a solid and foams in the drain. 4. A stirring means for stirring the drain in the drain tank at the time of the neutralization reaction after the charging.
The drain neutralization device according to any one of 1. 5. The water level detection means for detecting the water level of the drain in the drain tank is provided as the detection means.
The drain neutralization device according to any one of 1.