JP3193936B2 - Ice water transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ice water conveying apparatus used for air conditioning of buildings, production or processing of foods cooled or refrigerated at ice temperature, and the like.

[0002]

2. Description of the Prior Art FIG.
FIG. 8 is a configuration diagram showing the conventional ice water transport device shown on page 55). In the figure, 1 is ice water generated by freezing a part of water or an aqueous solution, 2 is a heat storage tank for storing ice water 1, 3 is a cooling medium inlet connected to an outlet of the ice water 1 of the heat storage tank 2, A heat exchanger 4 for cooling or freezing is provided in the middle of a flow path connecting the outlet of the heat storage tank 2 and the inlet of the cooling medium of the heat exchanger 3.
A pump 5 for transporting water, a concentration measuring means provided in the middle of the flow path for measuring the concentration of ice in the ice water 1 passing therethrough, and 6 a downstream of the transport pump 4 in the middle of the flow path. A concentration adjusting means provided at a position for adjusting the concentration of ice by discharging only water, a control means 7 is provided in a bypass flow path for returning the water discharged from the concentration adjusting means 6 to the heat storage tank 2 and not shown. A valve 8 controlled by the device is provided downstream of the valve 7 in the bypass flow path, and is a bypass pump controlled by the control device to generate a suction pressure for positively discharging only water in the concentration adjusting means 6. It is. The outlet of the cooling medium (ice water 1) of the heat exchanger 3 is connected to the upper part of the heat storage tank 2 by a circulation flow path, so that the ice water 1 is circulated as a whole.

FIG. 10 is a sectional view showing the conventional concentration adjusting means 6 shown on page 58 of the above-mentioned collection of papers. In the figure, reference numeral 61 denotes a cylindrical outer tube, and 62 denotes a part of the flow passage. And the ice water 1 is introduced into the outer tube 61 (the inner tube 6 described later).
3) is an inflow pipe for inflow, 63 is an inner pipe made of a perforated pipe in which a plurality of holes relatively smaller than ice grains are formed in its entirety, and 64 is a part of the flow path, An outflow pipe 65 for flowing the ice water 1 having passed through the inner pipe 63 and leading it to the concentration measuring means 5. The outflow pipe 65 constitutes one end of the bypass flow path and discharges water discharged from the hole of the inner pipe 63 to the valve 7. It is a discharge pipe that leads. In addition, the inflow pipe 62, the inner pipe 6
3 and the outflow pipe 64 had substantially the same inner diameter.

Next, the operation will be described. Ice water 1 generated by freezing part of water or an aqueous solution is stored in a heat storage tank 2. Then, the ice water 1 in the heat storage tank 2 is sucked and sent out by the transport pump 4, and the concentration thereof is adjusted as necessary by the concentration adjusting means 6 while passing through the flow path to the heat exchanger 3. Further, after the concentration of the ice is measured by the concentration measuring means 5, the ice reaches the heat exchanger 3 and is used as a cooling medium.

At this time, the result of measurement by the concentration measuring means 5 is sent to the control device and utilized for controlling the bypass pump 8 and the valve 7, and the concentration adjustment according to the measurement result is performed by the concentration adjusting means 6. . That is, when the ice concentration of the ice water 1 sent by the transport pump 4 is low, the valve 7 is opened and the bypass pump 8 is operated under the control of the control device. Then, in the concentration adjusting means 6, a part of the water in the ice water 1 flowing from the inflow pipe 62 enters the outer pipe 61 through the hole of the inner pipe 63, further enters the bypass flow path from the discharge pipe 65, It is returned to the heat storage tank 2 by the bypass pump 8. For this reason, the concentration of ice in the ice water 1 is increased during the passage through the concentration adjusting means 6. The flow rate of the water discharged in the concentration adjusting means 6 is adjusted by controlling the opening degree of the valve 7 or the rotation speed of the bypass pump 8 by the control means according to the measurement result. .

[0006]

Since the conventional ice-water conveying apparatus is constructed as described above, it uses the concentration adjusting means 6 composed of an inner pipe 63 having a hole for discharging water as a whole. Therefore, it was difficult to efficiently discharge only water, and the concentration of ice could not be sufficiently increased.

That is, ice has a lower specific gravity than water, and ice in the ice water 1 tends to flow in an upwardly biased state. Therefore, in a configuration in which the inflow pipe 62 and the inner pipe 63 have the same inner diameter, the inner pipe In the case of the ice 63 as well, the ice flows unbalanced upward, and the ice passes through the vicinity of the water discharging hole formed in the upper part of the inner tube 63. For this reason, for example, if the diameter of the hole is increased in order to increase the discharge flow rate of water, fine ice also passes through the hole together with the water from above the inner tube 63, and even if the discharge flow rate increases, the concentration of ice Cannot increase the performance. On the other hand, if only water is to be discharged, the diameter of the hole must be smaller than the diameter of the smallest ice, and the flow resistance increases, so that the discharge flow rate cannot be increased.

Further, as described above, in the conventional ice water transfer device, the transfer pump 4 is disposed upstream of the concentration adjusting means 6, and the ice water 1 is sucked out of the heat storage tank 2 and is sent out by the transfer pump 4. The water is discharged by the concentration adjusting means 6 as necessary, the concentration of ice is adjusted, and the water is sent to the heat exchanger 3. For this reason, the flow rate of the ice water 1 sent to the heat exchanger 3 is stably maintained at a predetermined value, and not only the concentration of the ice but also the flow rate of the ice water 1 to the heat exchanger 3 is set to an ideal value (for example, conveyance). It was difficult to set and maintain the power and the values of the concentration and flow rate to minimize the power.

Because a constant flow rate pump is usually used for the transfer pump 4, the flow rate of the ice water 1 finally sent to the heat exchanger 3 is controlled by the discharge flow rate (constant value) of the transfer pump 4. This is a value obtained by subtracting the discharge flow rate of water (including ice in some cases) discharged in the means 6. However, since the concentration of ice in the ice water 1 supplied from the heat storage tank 2 is not constant, the discharge flow rate always fluctuates by the operation described above. Therefore, the flow rate of the ice water 1 finally sent to the heat exchanger 3 fluctuates as a result of this concentration adjustment.

Further, in the above-mentioned conventional ice water transport apparatus, although only water can be taken out of the ice water 1 by the concentration adjusting means 6 to increase the concentration of ice, the concentration cannot be reduced to lower the concentration of ice. . For this reason, there has been a problem that the concentration of ice in the ice water 1 flowing out of the heat storage tank 2 is too high, so that it is not possible to prevent a problem that the flow path is blocked during transportation, for example.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has a sufficient ability to adjust the concentration of ice with respect to ice water flowing out of a heat storage tank, and to supply ice water having an optimum concentration and flow rate to an optimum level. It is an object of the present invention to provide an ice water transport device that can transport the ice water to an exchanger.

[0012]

Ice water conveying device according to the invention SUMMARY OF THE INVENTION The first aspect, the concentration adjusting means, before being installed horizontally
An inner tube connected to the middle of the serial flow path is disposed so as to surround the outer periphery of the inner tube and the double tube more the outer tube outlet is formed of water, the inner of the double tube The pipe is a perforated pipe in which a plurality of holes that allow only water to pass through are formed on the lower side ,
Introducing part to the concentration adjusting means in the flow path
In addition, a linear portion having a length twice or more the inner diameter is provided .

According to a second aspect of the present invention, there is provided an ice water transport device, comprising: an inner pipe having a plurality of holes formed in the middle of the flow passage and having a plurality of holes through which only water passes; A double pipe comprising an outer pipe disposed around the outer circumference of the pipe and having an outlet for water formed therein;
A flow channel enlarged portion is formed at an inflow portion of the heavy pipe into the inner pipe.

According to a third aspect of the present invention, there is provided an ice water transport device, comprising: an inner pipe having a plurality of holes connected to the middle of the flow path and having only water passing therethrough; A double pipe comprising an outer pipe disposed around the outer circumference of the pipe and having an outlet for water formed therein;
A small diameter portion such as an orifice or a nozzle is formed at an inflow portion of the heavy pipe into the inner pipe.

According to a fourth aspect of the present invention, in the ice water conveying apparatus, the concentration adjusting means is connected in the middle of the flow path by an inlet formed on a side and an outlet formed on an upper part. Is a container formed with a water outlet, and at a position below the inflow port and above the discharge port, a perforated plate formed with a plurality of holes that allow only water to pass through the container up and down. It is a container arranged to partition.

According to a fifth aspect of the present invention, there is provided an ice-water conveying apparatus, wherein a straight portion having a length of at least twice the inner diameter is provided in an introduction portion of the flow path leading to the concentration adjusting means. It is.

In the ice water transfer device according to the invention, the transfer pump is arranged downstream of the concentration adjusting means in the flow path.

[0018]

According to the first aspect of the present invention, the density adjusting means comprises:
Since the inner tube is installed horizontally, the ice in the ice water tends to flow upward while being biased upward in the inner tube by buoyancy. Since the hole provided in the inner tube to allow only water to pass through is formed so as to be biased toward the lower side of the inner tube, the possibility of ice passing near the hole is reduced. Therefore, even if the discharge flow rate of the water is increased by increasing the rotation speed of the bypass pump connected to the outlet of the outer pipe or increasing the diameter of the hole, the ice is discharged together with the water. It is hard to be done.

In the concentration adjusting means according to the second aspect of the present invention, since the flow path expanding portion is formed at the inflow portion into the inner tube, the ice in the ice water passes near the center of the tube in the inner tube. This makes it difficult for ice to pass near the hole of the inner tube.

According to the third aspect of the present invention, since the small diameter portion such as the orifice or the nozzle is formed at the inflow portion into the inner tube, the ice in the ice water near the center in the tube is formed in the inner tube. , And ice also hardly passes near the hole of the inner tube.

According to a fourth aspect of the present invention, there is provided the concentration adjusting means, wherein the ice in the ice water flows from the inlet at the side of the container.
Since it rises due to buoyancy and flows out of the upper outlet, ice is less likely to pass near the perforated plate provided below the inlet, and only water is discharged from the lower outlet of the container. It will be easier.

According to a fifth aspect of the present invention, in the ice water transfer device, the flow path leading to the concentration adjusting means is provided with a linear portion having a length of at least twice the inner diameter. The flow of ice water flowing into the means is stabilized, and the action of passing the ice away from the hole for discharging water in the concentration adjusting means is reliably and highly realized.

[0023] Since the transport pump according to the sixth aspect of the present invention is disposed downstream of the concentration adjusting means,
The transport flow rate of the ice water sent to the heat exchanger is determined only by the discharge flow rate of the transport pump, regardless of the magnitude of the discharge flow rate in the concentration adjusting means. Also, by supplying water from the outlet of the outer pipe, it is possible to use the suction force of the transport pump to allow water to flow into the inner pipe from the outlet, and consequently the ice water An operation to lower the density can also be performed.

[0024]

【Example】

Embodiment 1 FIG. Hereinafter, an embodiment of the present invention will be described with reference to the drawings. It should be noted that the ice water transport device of the present embodiment has a feature in a part of the concentration adjusting means, and other configurations may be the same as the conventional device shown in FIG. The same reference numerals are used for the elements, and the description is omitted.

FIG. 1 shows a density adjusting means 6 according to this embodiment.
It is sectional drawing which shows a. In FIG. 1, reference numeral 66 denotes an inner pipe of a double pipe installed horizontally, which is a perforated pipe having many holes formed from the center to the lower part. The hole of this inner pipe has a diameter set to allow only water to pass through,
The diameter is not necessarily smaller than the outer diameter of all ice in the ice water 1.

Next, the operation will be described. In the concentration adjusting means 6a in the above embodiment, the inflow pipe 62, the inner pipe 66
Are installed horizontally, and the flow direction of the ice water 1 flowing from the inflow pipe 62 becomes horizontal, so that the ice of the ice water 1 flowing in the inner pipe 66 flows toward the upper part of the pipe due to buoyancy, and The flow of ice is small. Since the inner pipe 66 is provided with a hole for discharging water from the center of the pipe to the lower part, the less turbulence of the flow, the less the possibility of ice passing near this hole.

For this reason, even if the number of rotations of the bypass pump 8 is increased or the diameter of the hole is made larger than before, even if the discharge flow rate of water is increased more than before, ice is hardly discharged together with water. Therefore, it is possible to adjust the concentration by sufficiently discharging only a large amount of water and sufficiently increasing the concentration of ice. Even if the concentration of ice in the ice water 1 flowing out of the heat storage tank 2 is extremely low, the concentration can be increased to a predetermined concentration to increase the heat exchanger. 3 can be sent.

Embodiment 2 FIG. Next, an embodiment of the invention described in claim 2 will be described with reference to the drawings. It should be noted that the ice water transport device of the present embodiment has a feature in a part of the concentration adjusting means, and other configurations may be the same as the conventional device shown in FIG. The same reference numerals are used for the elements, and the description is omitted.

FIG. 2 shows the density adjusting means 6b according to this embodiment.
FIG. In FIG. 2, reference numeral 62b denotes an inflow pipe corresponding to the above-described inflow pipe 62 for flowing the ice water 1 into the inner pipe 63 of the concentration adjusting means 6b, and 67 denotes an enlarged flow path formed in the inflow pipe 62b. . The upstream side of the inflow pipe 62b has a smaller diameter than the inner pipe 63 of the concentration adjusting means 61, and the end connected to the inner pipe 63 has an inner pipe 63b.
By having the same diameter as that described above, the flow path expanding portion 67 is formed.

Next, the operation will be described. In the concentration adjusting means 6b in this embodiment, since the flow path expanding portion 67 is formed at the inflow portion into the inner tube 63, the ice in the ice water 1 easily passes near the center of the tube in the inner tube 63. Become
Again, it becomes difficult for ice to pass near the hole of the inner tube 63. This is because the ice immediately after passing through the enlarged flow path portion 67 of the inflow pipe 62b exists only in the center of the inner pipe 63 because of the small diameter upstream of the enlarged flow path portion 67, and then downstream. This is because, even if it rises by buoyancy or diffuses due to turbulence in the flow, it is unlikely to reach near the inner circumference of the inner tube 63 before passing through the inner tube 63. Therefore, the concentration adjustment ability for discharging only a large amount of water and sufficiently increasing the concentration of ice is improved. Even if the concentration of ice in the ice water 1 flowing out of the heat storage tank 2 is extremely small, the concentration of ice is increased to a predetermined concentration and heat exchange is performed. Can be sent to the container 3.

Embodiment 3 FIG. Next, an embodiment of the invention described in claim 3 will be described with reference to the drawings. It should be noted that the ice water transport device of the present embodiment has a feature in a part of the concentration adjusting means, and other configurations may be the same as the conventional device shown in FIG. The same reference numerals are used for the elements, and the description is omitted.

FIG. 3 shows the density adjusting means 6c according to this embodiment.
FIG. In FIG. 3, reference numeral 68 denotes the inflow pipe 6
2 is a so-called tube nozzle. Note that the pipe nozzle forms a small-diameter portion of the flow path in the pipe, and has a relatively long dimension in the flow direction and a sharp edge.

Next, the operation will be described. In the concentration adjusting means 6c in the above embodiment, since the pipe nozzle 68, which is a small diameter part, is formed at the inflow part to the inner pipe 63, the inner pipe 6
In 3, the amount of ice water 1 is reduced by the small diameter of the pipe nozzle 68.
The ice inside becomes easier to pass near the center of the tube, and it is also difficult for ice to pass near the hole of the inner tube 63. Therefore, the concentration adjusting ability for discharging only a large amount of water and sufficiently increasing the concentration of ice is improved. In the above embodiment, the small diameter portion is formed by the tube nozzle. However, a similar effect can be obtained by, for example, a so-called tube orifice. The pipe orifice is a small diameter portion in a pipe that is relatively short in the flow direction and has a sharp edge.

Embodiment 4 FIG. Next, an embodiment of the invention described in claim 4 will be described with reference to the drawings. It should be noted that the ice water transport device of the present embodiment has a feature in a part of the concentration adjusting means, and other configurations may be the same as the conventional device shown in FIG. The same reference numerals are used for the elements, and the description is omitted.

FIG. 4 shows a density adjusting means 6d according to this embodiment.
FIG. In FIG. 4, 69 is a container, and 70 is a perforated plate. The container 69 has an inflow port formed on the side thereof connected to the inflow pipe 62, and an outflow port formed on the upper portion connected to an outflow pipe 64d (corresponding to the outflow pipe 64) vertically arranged, A water outlet 65d (corresponding to the outlet 65) is formed at the bottom. Further, the perforated plate 70 is formed with a plurality of holes for allowing only water to pass therethrough. The perforated plate 70 partitions the container 69 up and down at a position below the inflow port and above the discharge port 65d in the container 69. It is arranged horizontally.

Next, the operation will be described. In the concentration adjusting means 6d in the above embodiment, the ice in the ice water 1
After flowing from the inflow port (inflow pipe 62) at the side of the hole, it rises by buoyancy and flows out from the upper outflow port (outflow pipe 64d), so that the perforated plate 70 provided below the inflow port is provided.
Ice is unlikely to pass through the vicinity, and only water is easily discharged from the discharge port 65d at the bottom of the container 69. Therefore, the concentration adjusting ability for discharging only a large amount of water and sufficiently increasing the concentration of ice is improved.

Embodiment 5 FIG. Next, an embodiment of the invention described in claim 5 will be described with reference to the drawings. The ice water transport device according to the fifth aspect is characterized by the size and shape of the flow path of the ice water leading to the concentration adjusting means, and is an invention that further enhances the operational effects of the devices according to the first to fourth aspects. Example is Example 1.
The following description is based on the premise of the apparatus described above, and the same reference numerals are used for the same components as those in the first embodiment, and description thereof is omitted.

FIG. 5 is a view showing the front and rear pipes of the concentration adjusting means 6a. In FIG. 5, reference numeral 80 denotes a straight pipe portion (straight portion) formed in the flow path of the ice water 1 up to the concentration adjusting means 6a, and includes the inflow pipe 62 described above. The length of the straight pipe portion 80 is set to a length L that is at least twice the inner diameter of the pipe forming the flow path of the ice water 1.

In this embodiment, the straight pipe portion 80 functions as a flow advance section, and the ice water 1 flowing into the concentration adjusting means 6a is used.
As a result, the above-mentioned action of allowing the ice to pass through the inner tube 66 away from the hole of the inner tube 66 is reliably and highly realized. Thus, the ability to increase the concentration of ice is further improved. In addition, the configuration similar to this embodiment is as follows.
The same effect can be obtained when applied to the second, third and fourth embodiments.
Further, the configuration of this embodiment is similarly applicable to a case where a plurality of concentration adjusting means 6a and the like are provided in the flow path of the ice water 1, and the effect is exhibited. FIG. 6 shows a piping example in that case. When a plurality of concentration adjusting means are provided in the flow path of the ice water 1,
Needless to say, the density adjustment ability is improved by itself.

Embodiment 6 FIG. Next, an embodiment of the invention described in claim 6 will be described with reference to the drawings. Note that the same components as those of the conventional device shown in FIG. 9 are denoted by the same reference numerals, and description thereof is omitted. FIG. 7 is a configuration diagram showing an ice water transport device according to this embodiment. In FIG. 7, reference numeral 9 denotes the density adjusting means 5.
From the valve 7 or the bypass pump 8
Is a control device for controlling It should be noted that a characteristic of this embodiment is that the transport pump 4 is provided downstream of the density adjusting means 6. The control means 9 has a function of operating the bypass pump 8 and opening the valve 7 at an opening corresponding to the degree when the signal that the ice concentration is too low is received from the concentration measuring means 5, When a signal indicating that the ice concentration is too high is received from the concentration measuring means 5, the bypass pump 8 is stopped and the valve 7 is opened at an opening corresponding to the level of the signal.

Next, the operation will be described. In the ice water transfer device of this embodiment, the transfer flow rate of the ice water 1 sent to the heat exchanger 3 is equal to the discharge flow rate of the concentration control means 6 because the transfer pump 4 is disposed downstream of the concentration control means 6. Is determined only by the discharge flow rate of the transport pump 4 irrespective of the size. For this reason, it is possible to adjust the concentration of ice to an optimum value and maintain the transport flow rate at the optimum value, for example, to operate under the conditions of the density and the flow rate that minimize the transport power.

Further, when the ice concentration becomes higher than the allowable value, the controller 9 stops the bypass pump 8 and opens the valve 7 at an opening corresponding to the degree.
By the suction force of the transport pump 4, water flows into the inner pipe 63 from the outlet 65 of the outer pipe 61 in the concentration adjusting means 6 via the bypass pump 8 and the valve 7. For this reason, it also has a function of adjusting the concentration of ice to be low, so that the above-described optimum operation is further facilitated, and the problem that the flow path is blocked due to too much ice is prevented. be able to.

In the above embodiment, the bypass flow path is
In order to adjust the concentration of ice to be low, water flows backward in the bypass pump 8. However, as shown in FIG. 8, the bypass flow path has two systems, and the valve 7 and the bypass pump 8 are connected in parallel. Similar effects can be obtained by connecting. Here, reference numeral 10 denotes a check valve which prevents water from flowing back to the bypass pump 8. In this case, the controller 9a closes the valve 7 to operate the bypass pump 8 when the ice concentration is low, and stops the bypass pump 8 and opens the valve 7 when the ice concentration is high. What should be done.

[0044]

As evident from the foregoing description, according to the first aspect of the invention, the concentration adjusting means, and the inner tube which is disposed horizontally is connected to the middle of the flow path, so as to surround the outer periphery of the inner tube And a double pipe comprising an outer pipe having a water outlet formed therein, and an inner pipe in the double pipe having a plurality of holes for allowing only water to pass therethrough and having a plurality of holes formed on the lower side. Since it is configured as a tube, it is unlikely that ice will pass near the hole of the inner tube in the concentration adjusting means, so that it is difficult for ice to be discharged together with water even if the discharge flow rate of water is increased compared to the conventional case. . Supporting Tsu <br/> Te, it is smaller by increasing the concentration of ice is increased to a predetermined concentration becomes possible to send to the heat exchanger. Furthermore, in the channel
At least two times the inner diameter at the introduction part up to the concentration adjustment means
It is configured to provide a linear part of
The flow of ice water flowing into the control means is stabilized,
And pass ice away from the hole for draining water.
High concentration of ice
The density adjusting ability can be further improved.

According to the second aspect of the present invention, the concentration adjusting means includes an inner pipe having a plurality of holes connected to the middle of the flow path and allowing only water to pass therethrough, and an outer periphery of the inner pipe. A double pipe comprising an outer pipe which is disposed so as to surround and has a water discharge port is formed, and a flow channel enlarged portion is formed at an inflow portion of the flow channel into the inner pipe of the double pipe. Because it was configured as
In the inner tube of the concentration adjusting means, ice in ice water easily passes near the center of the tube, and ice also hardly passes near the hole of the inner tube, so the concentration adjusting ability to increase the concentration of ice is improved. I do.

According to the third aspect of the present invention, the concentration adjusting means surrounds the inner pipe having a plurality of holes connected in the middle of the flow path and through which only water passes, and the outer periphery of the inner pipe. And a small-diameter portion such as an orifice or a nozzle at an inflow portion of the flow passage into the inner tube of the double tube. In the inner tube of the concentration adjusting means,
Since the ice in the ice water easily passes near the center of the tube, and also makes it difficult for the ice to pass near the hole of the inner tube, the concentration adjusting ability for increasing the concentration of ice is improved.

According to the fourth aspect of the present invention, the concentration adjusting means is connected in the middle of the flow path by the inlet formed on the side and the outlet formed on the upper part, and the water is formed in the lower part. At a position below the inflow port and above the discharge port, a perforated plate having a plurality of holes through which only water passes is disposed so as to partition the container up and down. Since the container is configured so as to be provided, ice in the ice water is less likely to pass near the perforated plate in the concentration adjusting means, and only water is easily discharged from the outlet at the lower part of the container. Therefore, the ability to adjust the concentration of ice also improves.

According to the fifth aspect of the present invention, since the linear portion having a length of at least twice the inner diameter is provided at the introduction portion of the flow path leading to the concentration adjusting means, the concentration is increased. Since the flow of ice water flowing into the adjusting means is stabilized and the action of passing the ice away from the hole for discharging water in the concentration adjusting means is reliably and highly realized, the concentration adjusting ability to increase the ice concentration is improved. Can be even higher.

According to the sixth aspect of the present invention, the transport pump is arranged downstream of the density adjusting means in the flow path, so that the ice density can be adjusted to an optimum value while being adjusted. The conveyance flow rate can be maintained at the optimum value, and the operation can be performed under the conditions of the concentration and the flow rate that minimize the conveyance power. In addition, since it also has a function of adjusting the concentration of ice to be low, the above-described optimal operation is further facilitated, and a problem that the flow path is blocked due to an excessive amount of ice is prevented. Can be.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a concentration adjusting means in an ice water transport device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a concentration adjusting means in the ice water transport device according to one embodiment of the present invention.

FIG. 3 is a sectional view showing a concentration adjusting means in the ice water transport device according to one embodiment of the third aspect of the present invention.

FIG. 4 is a sectional view showing a concentration adjusting means in the ice water transport device according to an embodiment of the present invention.

FIG. 5 is a diagram showing front and rear pipes of a concentration adjusting means in the ice water transport device according to one embodiment of the fifth aspect of the present invention.

FIG. 6 is a diagram showing pipes before and after concentration adjusting means in an ice water conveying apparatus according to another embodiment of the present invention.

FIG. 7 is a configuration diagram showing an ice water transport device according to an embodiment of the invention described in claim 6;

FIG. 8 is a configuration diagram showing an ice water transport apparatus according to another embodiment of the invention described in claim 6.

FIG. 9 is a configuration diagram illustrating a conventional ice water transport device.

FIG. 10 is a cross-sectional view showing a concentration adjusting means in a conventional ice water transport device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ice water 2 Heat storage tank 3 Heat exchanger 4 Conveying pump 5 Concentration measuring means 6, 6a, 6b, 6c, 6d Concentration adjusting means 61 Outer pipe 63, 66 Inner pipe 65, 65d Discharge port 67 Flow path expansion part 68 Small diameter part ( Pipe nozzle) 69 container 70 perforated plate 80 straight pipe part (linear part)

Continuing from the front page (72) Inventor Shinichi Wakamoto 8-1-1 Tsukaguchi Honcho, Amagasaki City Inside Central Research Laboratory Mitsubishi Electric Corporation (72) Inventor Naoki Tanaka 8-1-1 Honcho Tsukaguchi Amagasaki City Mitsubishi Electric Corporation Central Research Institute, Inc. (72) Inventor Koichi Ohata 2-2-2 Dojima, Kita-ku, Osaka-shi Mitsubishi Electric Corporation Kansai Branch Office (56) References JP-A-4-174230 (JP, A) 3-42932 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) F24F 5/00 F25D 17/02

Claims (6)

(57) [Claims] An ice water stored in a heat storage tank is transported to a heat exchanger that performs cooling or freezing using the ice water, and a device that adjusts the concentration of the ice water during the transportation. A transfer device that is provided in the middle of a flow path connecting the outlet of the ice water of the heat storage tank and the inlet of the ice water of the heat exchanger, and transfers the ice water of the heat storage tank to the heat exchanger. A pump, a concentration measuring means provided in the middle of the flow passage for measuring the concentration of ice in the ice water passing therethrough, and ice provided in the middle of the flow passage and passing through according to the measurement value of the concentration measuring means And a concentration adjusting means for adjusting the concentration of the inner water, wherein the concentration adjusting means is disposed so as to surround an inner pipe installed horizontally and connected in the middle of the flow path and an outer periphery of the inner pipe. And a double pipe comprising an outer pipe provided with a water discharge port. The inner tube, a plurality of holes for passing only water is porous tube formed deviated to the lower side and in
In the meantime, until the concentration adjusting means in the flow path
The introduction part has a straight part with a length more than twice the inner diameter
Ice water conveying device, characterized in that the. 2. An apparatus for transferring ice water stored in a heat storage tank to a heat exchanger that performs cooling or freezing using the ice water, and adjusts the concentration of the ice water during the transfer. A transfer pump provided in the middle of a flow path connecting the outlet of the ice water of the heat storage tank and the inlet of the ice water of the heat exchanger to transfer the ice water of the heat storage tank to the heat exchanger; A concentration measuring means provided in the middle of the road to measure the concentration of ice in the ice water passing therethrough; and a concentration measuring means provided in the middle of the flow passage and adjusting the concentration of the passing ice according to the measurement value of the concentration measuring means. In the ice water transport device provided with a concentration adjusting means, the concentration adjusting means surrounds an inner pipe having a plurality of holes connected to the middle of the flow path and passing only water, and an outer periphery of the inner pipe. So that the outer pipe with water outlet formed and more An ice water transport device, characterized in that the flow path has an enlarged flow path formed at an inflow portion of the flow path into the inner pipe of the double pipe. 3. An apparatus for transferring ice water stored in a heat storage tank to a heat exchanger that performs cooling or freezing using the ice water, and adjusts the concentration of the ice water during the transfer. A transfer pump provided in the middle of a flow path connecting the outlet of the ice water of the heat storage tank and the inlet of the ice water of the heat exchanger to transfer the ice water of the heat storage tank to the heat exchanger; A concentration measuring means provided in the middle of the road to measure the concentration of ice in the ice water passing therethrough; and a concentration measuring means provided in the middle of the flow passage and adjusting the concentration of the passing ice according to the measurement value of the concentration measuring means. In the ice water transport device provided with a concentration adjusting means, the concentration adjusting means surrounds an inner pipe having a plurality of holes connected to the middle of the flow path and passing only water, and an outer periphery of the inner pipe. So that the outer pipe with water outlet formed and more An ice water transfer device, wherein a small-diameter portion such as an orifice or a nozzle is formed at an inflow portion of the flow passage into the inner tube of the double tube. 4. An apparatus for transferring ice water stored in a heat storage tank to a heat exchanger for cooling or freezing using the ice water, and for adjusting the concentration of the ice water during the transfer. A transfer pump provided in the middle of a flow path connecting the outlet of the ice water of the heat storage tank and the inlet of the ice water of the heat exchanger to transfer the ice water of the heat storage tank to the heat exchanger; A concentration measuring means provided in the middle of the road to measure the concentration of ice in the ice water passing therethrough; and a concentration measuring means provided in the middle of the flow passage and adjusting the concentration of the passing ice according to the measurement value of the concentration measuring means. In the ice water transport device provided with a concentration adjusting means, the concentration adjusting means is connected in the middle of the flow path by an inflow port formed in a side portion and an outflow port formed in an upper portion, and a drainage portion is provided in a lower portion. A container having an outlet formed therein, the container being provided below the inflow port. On the other hand, the ice water transport device is characterized in that a perforated plate provided with a plurality of holes through which only water passes is disposed at a position above the discharge port so as to partition the container up and down. 5. The flow path according to claim 2 , wherein a straight portion having a length of at least twice the inner diameter is provided in an introduction portion of the flow path leading to the concentration adjusting means. The ice water transport device according to claim 1. 6. An apparatus for transferring ice water stored in a heat storage tank to a heat exchanger for cooling or freezing using the ice water, and for adjusting the concentration of the ice water during the transfer. A transfer pump provided in the middle of a flow path connecting the outlet of the ice water of the heat storage tank and the inlet of the ice water of the heat exchanger to transfer the ice water of the heat storage tank to the heat exchanger; A concentration measuring means provided in the middle of the road to measure the concentration of ice in the ice water passing therethrough; and a concentration measuring means provided in the middle of the flow passage and adjusting the concentration of the passing ice according to the measurement value of the concentration measuring means. An ice water transport device comprising a concentration adjusting means, wherein the transport pump is disposed downstream of the concentration adjusting means in the flow path.