JPH0933149A - Ice regenerator and method for making ice therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an ice regenerator with a supercooling cancel device in which the supercooling cancel device is not required or ice hardly sticks and an ice removing operation is not required. SOLUTION: First and second water coolers 2a and 2b are opposed to each other and held horizontally in both sides of the upper part of a regenerative water tank 1. Supercooling water discharged therefrom collide with each other, so that a supercooling state is cancelled owing to its impact. Thus, a slurry ice crystal is formed, dropped and accumulated into the regenerative water tank 1. Accordingly, since the supercooling water collide with each other and the supercooling state is cancelled, a supercooling cancel device is not required.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ice heat storage device using late-night power.

[0002]

2. Description of the Related Art FIGS. 11 and 12 show, for example, JP-A-6-13.
FIG. 11 shows a conventional ice heat storage device disclosed in Japanese Patent No. 7617, FIG. 11 is a schematic system diagram, and FIG. 12 is a detailed view of a part (refrigeration device) thereof. In the figure, 1 is a heat storage water tank, 2
a and 2b are the first ones arranged on both upper sides of the heat storage water tank 1.
The second water cooler serves as a supercooler which is connected to the heat storage water tank 1 by the water supply pipe line 3 and is supplied with cooling water by the pump 4 to generate supercooled water. 5 is the first and second water coolers 2
The cooling pipes 5a and 5b of a and 2b are discharge ports arranged in the horizontal direction. 6 is a compressor of the refrigeration cycle, 7 is a condenser, 8 is a decompression device, and a cooling device 9 is constituted by the water coolers 2a and 2b. 10a and 10b are discharge flows of the respective supercooled water, 11a and 11b are obliquely arranged on both upper sides in the heat storage water tank 1, and the discharge flows 10a and 10b collide with each other to form a supercooling canceling device. It is a flat plate. 12 uses the slurry-like cooling water of the heat storage water tank 1 for heat exchange,
A heat exchanger that returns heat-exchanged cooling water whose temperature has risen to the heat storage water tank 1 again, and 13 is a pump that sends the cooling water through the pipe line 14.

Next, the operation will be described. The aqueous solution taken from the lower part of the heat storage water tank 1 by the pump 4 is passed through the water supply conduit 3 to the first water cooler 2a and the second water cooler 2b which are horizontally held above the heat storage water tank 1. Supply,
These aqueous solutions are cooled by a refrigerating device 9 including a compressor 6, a condenser 7, a pressure reducing device 8 and water coolers 2a and 2b, and remain in a liquid state in a supercooled state at a temperature below the melting point, that is, a supercooled state. Water is produced. The supercooled water is discharged from the discharge ports 5a and 5b of the first and second water coolers 2a and 2b, respectively, and the flat plates 11a on both sides provided obliquely above the heat storage water tank 1 are provided. , 11b, respectively, to release the supercooled state, and the slurry-like ice generated thereby is dropped into the heat storage water tank 1 as it is and supplied into the heat storage water tank 1. By arranging the first and second water coolers 2a and 2b on both sides in this way, slurry ice is accumulated in the heat storage water tank 1 evenly.

[0004]

The conventional ice heat storage device is constructed as described above. In this case, however, the slurry ice produced by releasing the supercooled state adheres to the flat plate and gradually grows. As a result, an ice block is formed, and this block the flow path of the discharge flow discharged from the first and second water coolers. Therefore, the operator needs to remove the ice block each time. In addition, since the aqueous solution is distributed and supplied from the same water supply pipe to the first and second water coolers, the distribution amount is unstable, and it becomes difficult to supply and discharge the same amount. There was a problem.

The present invention has been made in order to solve the above-mentioned problems, and it does not require a supercooling releasing device and has a small amount of ice adhesion, and therefore does not require deicing work.
Another object of the present invention is to obtain a simple and efficient ice heat storage device capable of discharging equal amounts of supercooled water from the first and second water coolers.

[0006]

According to a first aspect of the present invention, there is provided a method for producing ice in an ice heat storage device, wherein a first water cooler and a second water cooler are provided on both sides above a heat storage water tank, respectively. The supercooled water discharge ports are directly opposite to each other in the horizontal direction so that the two discharged waters collide with each other. The supercooled state is released by the impact force and the ice crystals in the form of slurry are stored in the heat storage water tank. Drop it inside.

According to a second aspect of the present invention, there is provided a method for producing ice in an ice heat storage device, wherein cooling water is supplied to the water coolers on both sides by dedicated water supply pipes and pumps. From the first and second water coolers respectively
An equal amount of supercooled water is discharged, and the supply amount on one side can be freely changed if necessary.

According to a third aspect of the present invention, there is provided a method for producing ice in an ice heat storage device, wherein air is provided between a first cooler and a second cooler provided with discharge ports of supercooled water in a horizontal direction facing each other. A curtain is provided, and the supercooled state is completely released by the collision of the supercooled water and the collision of the air curtain.

An ice heat storage device according to a fourth aspect of the present invention is
A subcooling release plate having a narrow wedge-shaped elastic member at the bottom is provided between the first cooler and the second cooler in which the discharge ports of the supercooled water are horizontally provided to face each other. Since the supercooling release plate has a wedge shape with an elastic member, the supercooled state is released by the collision of the supercooled water, and at the same time, the elastic deformation of the impact prevents the adhesion of ice crystals, and even if it adheres, it easily Drop it off.

An ice heat storage device according to claim 5 of the present invention is
Only the upper edge is held in the middle of the first cooler and the second cooler in which the discharge ports of the supercooled water are provided to face each other in the horizontal direction,
For example, a curtain-shaped supercooling release cloth made of a hard vinyl material is provided, and the supercooling release cloth is freely deformed by collision from both sides of the supercooled water to prevent the adhesion of ice crystals.

An ice heat storage device according to claim 6 of the present invention is
The weight member is provided at the lower edge of the curtain-shaped supercooling releasing cloth according to the fifth aspect, whereby the collision surface can be freely deformed and can be easily held.

The ice heat storage device according to claim 7 of the present invention is
As a supercooling release device, a curtain-shaped subcooling release cloth is attached to a three-way frame that holds the upper frame swingably and opens downward. No adhesion.

An ice heat storage device according to claim 8 of the present invention is
As a supercooling release device, a curtain-shaped supercooling release cloth is attached by locking with a string in a three-sided frame whose upper and lower edges are fixed and the lower side is open. Deformation becomes easy and ice crystals do not adhere.

An ice heat storage device according to claim 9 of the present invention is
As a supercooling release device, a curtain-shaped subcooling release cloth is stretched in a three-sided frame made of an elastic member whose upper and lower edges are fixed and which opens at the bottom. The frame is deformed and the adhering surface is deformed so that ice crystals do not adhere.

According to a tenth aspect of the present invention, there is provided an ice heat storage device as a supercooling releasing device, wherein a curtain-shaped overheat is provided in a three-sided frame made of an elastic member, which is engaged with a movable joint at the center of the upper frame and opens downward. It is equipped with a cooling release cloth, and the center of the frame moves freely in the front and back directions by the impact force of supercooled water, deforming the adhesion surface and preventing ice crystals from adhering.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1. Hereinafter, embodiments of the present invention will be described with reference to the drawings. In FIG. 1 showing the first embodiment, 1 is a heat storage water tank, 2a is connected to this heat storage water tank 1 by a first water supply conduit 3a, and cooling water is supplied by a first pump 4a to supercool water. Is a first water cooler that produces 2b
Is a second water cooler which is connected by the second water supply pipe 3b branched from the first water supply pipe 3a and is supplied with cooling water by the second pump 4b to generate supercooled water. And these 1st, 2nd water coolers are arrange | positioned so that the 1st, 2nd discharge port 5a, 5b of each cooling pipe 5 may oppose in the horizontal direction on both sides above the heat storage water tank 1 so that it may face straight. There is. In addition, 15a and 15b are the above-mentioned 1st, 2nd water coolers 2a,
It is a waterproof cover that is provided in the vicinity of the lower part of 2b and the upper part of the heat storage water tank 1 in an inclined manner. Other configurations are the same as the conventional ones, and thus the description thereof is omitted.

Next, the operation will be described. By operating the device in the same manner as in the conventional art, the supercooled water 10a is discharged in one horizontal direction from the first discharge port 5a of the first water cooler 2a, and at the same time the second water cooler 2a is discharged. The supercooled water 10b is discharged from the second discharge port 5a in the other horizontal direction. At this time, since the first and second discharge ports 5a and 5b are arranged so as to face each other, these discharge supercooled waters collide with each other at their central portions and generate a large impact force. Then, the supercooled state is released and slurry ice crystals are generated and dropped into the heat storage water tank 1. The waterproof cover 15
Reference numerals a and 15b are for guiding the supercooled water or ice crystals that have come down and dropping them. As mentioned above,
Since the first and second water coolers 2a and 2b are provided with dedicated water supply pipes 3a and 3b and pumps 4a and 4b, respectively, so that the aqueous solutions in the heat storage water tank 1 are separately supplied, equal pressure, An equal amount of aqueous solution can be supplied, or alternatively, the amount of aqueous solution supplied on one side can be intentionally changed.

Embodiment 2. FIG. 2 shows the second embodiment. In the figure, reference numeral 21 is a cold air discharge device for generating an air curtain 21a made of high-pressure cold air, which is held above the heat storage water tank 1 in a horizontal direction. First, second
It is arranged above the middle of the water coolers 2a and 2b. The other configurations are the same as those in the first embodiment.

Next, the operation will be described. By operating the device as in the conventional case, the supercooled water is discharged from the discharge port 5a of the first water cooler 2a in one horizontal direction, and at the same time,
Similarly, the supercooled water is discharged in the other horizontal direction from the discharge port 5b of the second water cooler 2b, and the supercooled water is discharged in the opposite direction. At this intersection, the cold air discharger 21 has a higher pressure than the supercooled water, and the cold air curtain 21a is discharged downward. Is released, and ice crystals in the form of slurry are generated and fall into the heat storage water tank 1 to be accumulated. At this time, the air curtain 21a
By setting the discharge width of the supercooled water wider than the discharge width of the supercooled water, even if the supercooled water collides with each other, the supercooled water is reliably captured and the supercooled state is released.

Embodiment 3 FIG. 3 shows the third embodiment, in which 22 is the first and second water coolers 2.
A wedge-shaped elastic member, which is arranged in the middle of a and 2b and is tapered downward, is a supercooling release plate made of, for example, soft or hard rubber, and its upper edge is held by a support tool (not shown).
The other configurations are the same as those in the first embodiment.

Next, the operation will be described. By the operation similar to that of the first embodiment, the discharge ports 5 of the first and second water coolers 2a and 2b which are arranged above the heat storage water tank 1 so as to face each other.
Supercooled water is discharged from a and 5b so as to face each other. Then, the supercooled water discharged facing each other collides with both surfaces of the supercooling release plate 22 provided at the intersecting position, and the supercooled state is released by the impact to generate slurry ice crystals. And falls along the wedge-shaped slope into the lower heat storage water tank 1 to be accumulated. At this time, when the supercooled water collides with the supercooling release plate 22, the elastic contact surface is deformed and restored by the impact force to prevent ice crystals from adhering to and growing on the contact surface.

Embodiment 4 FIG. 4 shows Embodiment 4, in which 23 is the first and second coolers 2a,
A curtain-shaped supercooling release cloth made of, for example, a hard vinyl material is disposed in the middle of 2b, and the upper edge thereof is held by a holding rod 24 and is hung above the heat storage water tank 1. In addition,
Other configurations are the same as those in the first embodiment.

Next, the operation will be described. Due to the operation of the device, as in the first embodiment, the supercooled water faces the discharge ports of the first and second water coolers 2a and 2b that are disposed above the heat storage water tank 1 so as to face each other. The discharged supercooled water, which is discharged in the opposite direction, collides with both surfaces of the supercooling release cloth 23 provided at the intersecting position, and the supercooled state is released by these impacts, and the slurry ice crystals are released. Are generated and fall into the lower heat storage water tank 1 to be accumulated. At this time, since the supercooled water collides with the supercooling release cloth 23 in which only the upper edge is fixed and the rest are in the unrestrained state, the abutting surface is freely deformed and restored by the impact force, and abuts. Prevents ice crystals from adhering to the surface.

Embodiment 5 FIG. 5 shows the fifth embodiment. In the figure, 25 is fixed to the lower edge of the curtain-shaped supercooling release cloth 23 whose upper edge is fixed by a holding rod 24 in the fourth embodiment. It is a weight member. In addition,
Other configurations are the same as those in the fourth embodiment.

Next, the operation will be described. As in the above-described embodiment, the supercooled water is discharged from the discharge ports of the first and second water coolers 2a and 2b that are disposed above the heat storage water tank 1 so as to face each other by the operation of the device. The supercooled water collides with both surfaces of the supercooling release cloth 23 provided at the intersecting position, the supercooled state is released by the impacts, and ice crystals in the form of slurry are generated, and Heat storage water tank 1
It falls inside and accumulates. By the way, at this time, in the present embodiment, since the upper edge of the supercooling release cloth 23 is fixed and the weight member 25 is hung on the lower edge, the lower edge is sluggish due to the impact of the collision of the supercooled water. It swings to maintain the collision surface, and the cloth surface is freely deformed and restored to prevent ice crystals from adhering to the contact surface.

Embodiment 6 FIG. FIG. 6 shows the sixth embodiment. In the figure, reference numeral 26 denotes a supercooling releasing device arranged at the same position as the curtain-shaped supercooling releasing cloth 23. It comprises a three-way frame 27 which is swingably held by and opened downward, and a curtain-shaped supercooling release cloth 29 made of, for example, a hard vinyl material, which is fixed in the frame in a tensioned state. The rest of the configuration is similar to that of the fourth embodiment.

Next, the operation will be described. Due to the operation of the device, the supercooled water is discharged from the discharge ports of the first and second water coolers 2a and 2b, which are arranged facing each other above the heat storage water tank 1 in the same manner as in the first embodiment. The supercooled water collides with both sides of the supercooling release cloth 29 stretched on the three-sided frame 27 of the supercooling release device 26 provided at the intersecting position, and the supercooled state is released by those impacts. As a result, slurry ice crystals are generated and fall into the lower heat storage water tank 1 to be accumulated. By the way, at this time, since the subcooling release cloth 29 is attached by tensioning the three sides to the three-way frame 27, the cloth surface vibrates slightly due to the impact of the collision of the supercooled water, and ice crystals adhere to the contact surface. Prevent. Since the upper portion of the three-way frame 27 is swingably held by the supporting member 28, the lower portion swings due to the collision of the supercooled water, and the collision position and the collision angle on the cloth surface are freely changed. This prevents ice crystals from adhering to the cloth surface.

Embodiment 7 FIG. 7 shows the seventh embodiment. In the figure, 30 is a supercooling releasing device arranged at the same position as in the sixth embodiment, and the upper and lower sides are fixed by horizontal rod-shaped support members 32a and 32b. The curtain-shaped supercooling release cloth 33
The three edges are locked by the string 34 and are tensioned and attached. The rest of the configuration is similar to that of the fourth embodiment.

Next, the operation will be described. Due to the operation of the device, the supercooled water is discharged from the discharge ports of the first and second water coolers 2a and 2b, which are arranged facing each other above the heat storage water tank 1 in the same manner as in the first embodiment. The supercooled water collides with both sides of the supercooling release cloth 33 stretched with the string 34 on the three-sided frame 31 of the supercooling release device 30 provided at the intersecting position, and the impact causes the supercooled state. Is released,
Slurry ice crystals are generated and fall into the lower heat storage water tank 1 to be accumulated. By the way, at this time, the subcooling release cloth 3
Since 3 is attached to the three-sided frame 31 by tensioning the three sides with the string 34, the string 34 expands and contracts due to the impact due to the collision of the supercooled water, and the cloth surface vibrates slightly to form ice crystals on the contact surface. To prevent the adherence of.

Embodiment 8 FIG. 8 shows the eighth embodiment. In the figure, reference numeral 35 is a subcooling releasing device arranged at the same position as in the seventh embodiment, and the upper and lower sides are fixed by horizontal rod-shaped support members 37a and 37b. A curtain-shaped supercooling release cloth 38 is fixed inside an elastic three-sided frame 36 made of, for example, hard rubber that opens downward. The rest of the configuration is similar to that of the fourth embodiment.

Next, the operation will be described. Due to the operation of the device, the supercooled water is discharged from the discharge ports of the first and second water coolers 2a and 2b, which are arranged facing each other above the heat storage water tank 1 in the same manner as in the first embodiment. The supercooled water collides with both surfaces of the supercooling release cloth 38 stretched over the elastic three-sided frame 36 of the supercooling release device 35 provided at the intersecting position, and the impact causes the supercooled state. Is released,
Slurry ice crystals are generated and fall into the lower heat storage water tank 1 to be accumulated. At this time, since the three-way frame 36 has elasticity, the frame portion is continuously and freely deformed by the impact, and the supercooling release cloth 3 stretched accordingly is stretched.
The cloth surface of No. 8 is deformed, and ice crystals are prevented from adhering to the contact surface.

Embodiment 9 9 and 10 show a ninth embodiment, in which 39 is the eighth embodiment.
Is a supercooling releasing device arranged at the same position as, and fixed by horizontal bar-shaped supporting members 41a, 41b on both upper and lower sides,
For example, an elastic three-way frame 40 made of hard rubber is provided, and a central part of an upper frame of the three-way frame 40 is engaged with a movable joint 42 made of, for example, a hinge. The release cloth 43 is fixed. The other configurations are the same as those in the first embodiment.

Next, the operation will be described. As in the first embodiment, the first and second discharge ports 5a and 5b of the first and second water coolers 2a and 2b, which are arranged facing each other above the heat storage water tank 1 by the operation of the device, respectively, are first and second respectively. Of the supercooled water are discharged facing each other, and these supercooled water collide with both surfaces of the supercooling release cloth 43 stretched in the elastic three-sided frame 40 of the supercooling release device 39 provided at the intersecting position. Then, due to these impacts, the supercooled state is released, and ice crystals in the form of slurry are generated and fall into the lower heat storage water tank 1 to be accumulated. On this occasion,
Since the central portion of the elastic three-way frame 40 is configured to be bent back and forth by the flexible joint 42, the collision causes the frame portion to move from the center to the front-rear direction and repeats the obtuse inclination as shown by the chain line. Due to the elastic deformation of the frame portion, the cloth surface of the supercooling releasing cloth 43 is deformed accordingly, and the adhesion of ice crystals to the contact surface is prevented.

[0034]

According to the first aspect of the present invention, the first and second water coolers are provided so as to face each other in the horizontal direction, and the supercooling is discharged from the first and second water coolers. Since water is made to collide and the impact thereof releases the supercooled state to generate ice crystals, there is an effect that the supercooling device becomes unnecessary and the equipment cost becomes low.

According to the second aspect of the present invention, since the dedicated water supply pipe line and the pump are connected to the first and second water coolers, the distribution amount of the supplied water is stable, and the first and second water cooling systems are provided. An equal amount and pressure of supercooled water will be discharged from the vessel.

According to the third aspect of the present invention, since the high-pressure air curtain is arranged between the first and second coolers facing each other in the horizontal direction, the impact of the collision becomes large, and the impact with the opposite water is further increased. Since the supercooled water that could not be produced can be released from supercooling, no ice removing work is required and the ice making effect is improved.

According to the invention of claim 4, since the supercooling release plate is formed in a wedge shape by the elastic member, the supercooled state is released by the collision of the supercooled water, and at the same time, the ice crystals adhere due to the elastic deformation of the impact. Is prevented, and even if it adheres, it can be easily removed.

According to the fifth aspect of the present invention, since the upper edge of the curtain-shaped supercooling releasing cloth is held, the cloth surface is freely deformed by the collision from both sides of the supercooled water and ice crystals are attached. Prevent.

According to the sixth aspect of the present invention, since the upper edge of the curtain-shaped supercooling releasing cloth is held and the weight member is provided at the lower edge, it is possible to freely deform while maintaining the collision surface securely. Prevents the adhesion of ice crystals.

According to the invention of claim 7, since the curtain-shaped supercooling releasing cloth is provided in the three-sided frame having an opening at the lower side, the collision surface is stable and the adhesion of ice crystals can be prevented.

According to the invention of claim 8, since the curtain-shaped subcooling releasing cloth is attached to the inside of the three-sided frame whose lower side is opened, the string and the cloth surface vibrate due to the impact of collision, and the adhesion of ice crystals. Prevent.

According to the invention of claim 9, since the curtain-shaped supercooling releasing cloth is provided in the three-way frame made of the elastic member,
The frame is elastically deformed by the collision of the supercooled water, and the cloth surface is complicatedly deformed to prevent the adhesion of ice crystals.

According to the tenth aspect of the invention, since the center of the upper frame of the three-sided frame made of the elastic member is engaged with the movable joint and the curtain-shaped supercooling release cloth is provided inside, collision of the supercooled water is caused. Thus, the center part of the frame is deformed and moved in the direction of the front and back due to the creases in the joint portion, which deforms the surface of the cloth and has the effect of preventing the adhesion of ice crystals.

[Brief description of drawings]

FIG. 1 is a front view showing an ice heat storage device according to a first embodiment of the present invention.

FIG. 2 is a front view showing an ice heat storage device according to a second embodiment of the present invention.

FIG. 3 is a front view showing an ice heat storage device according to a third embodiment of the present invention.

FIG. 4 is a front view showing an ice heat storage device according to Embodiment 4 of the present invention.

FIG. 5 is a front view showing an ice heat storage device according to a fifth embodiment of the present invention.

FIG. 6 is a front view of components showing an ice heat storage device according to Embodiment 6 of the present invention.

FIG. 7 is a front view of components showing an ice heat storage device according to a seventh embodiment of the present invention.

FIG. 8 is a front view of components showing an ice heat storage device according to Embodiment 8 of the present invention.

FIG. 9 is a component front view showing an ice heat storage device according to a ninth embodiment of the present invention.

FIG. 10 is a plan view of FIG.

FIG. 11 is a front view showing a conventional ice heat storage device.

FIG. 12 is a detailed view of a main part of FIG.

[Explanation of symbols]

1 Heat Storage Water Tank, 2a, 2b Cooler, 3a, 3b Water Supply Pipeline, 4a, 4b Pump, 5 Cooling Pipe, 5a, 5b
Discharge port, 21 Cold air discharge device, 21a Air curtain,
22 supercooling release plate, 25 weight member, 26, 30, 3
5,39 Supercooling release device, 27, 31, 36, 40
Three-sided frame, 23, 29, 33, 38, 43 subcooling release cloth,
42 Movable joint.

Claims (10)

[Claims] 1. A first water cooler and a second water cooler are arranged on both upper sides of a heat storage water tank, and the discharge ports of respective cooling pipes of the both water coolers are provided so as to face each other, and the discharge ports on both sides thereof are provided. An ice production method for an ice heat storage device, wherein ice crystals are produced by colliding supercooled water discharged from the tank at an intermediate position to release the supercooled state. 2. Cooling water is supplied to the first and second water coolers from a heat storage water tank by first and second pumps, respectively, from first and second water supply pipes dedicated to the first and second water coolers. The method for producing ice in an ice heat storage device according to claim 1, wherein 3. An air curtain is provided between the first and second water coolers, and the air curtain is caused to collide with the collision of the supercooled water at the same time to accelerate the release of the supercooled state. The ice production method for an ice heat storage device according to claim 1. 4. The first and second water coolers are arranged on both upper sides of the heat storage water tank so that the discharge ports of the respective cooling pipes face each other, and the first and second water coolers of the first and second water coolers are arranged. In the middle,
An ice heat storage device comprising a subcooling release plate having a lower portion made of a narrow wedge-shaped elastic member. 5. The first and second water coolers are arranged on both upper sides of the heat storage water tank so that the discharge ports of their respective cooling pipes face each other, and the first and second water coolers of the first and second water coolers are arranged. In the middle,
An ice heat storage device, characterized in that a curtain-shaped supercooling release cloth holding only the upper edge is provided. 6. The ice heat storage device according to claim 5, wherein a weight member is attached to a lower edge of the curtain-shaped supercooling cloth. 7. The first and second water coolers are arranged on both upper sides of the heat storage water tank so that the discharge ports of the respective cooling pipes face each other, and the first and second water coolers of the first and second water coolers are arranged. In the middle,
An ice heat storage device, comprising: a three-way frame that holds an upper frame swingably and has a lower opening, and a supercooling release device in which a curtain-shaped supercooling release cloth is stretched is arranged. 8. A first water cooler and a second water cooler are arranged on both upper sides of the heat storage water tank so that the discharge ports of the respective cooling pipes face each other, and the first and second water coolers of the first and second water coolers are arranged. In the middle,
An ice heat storage device comprising: a three-sided frame having an upper edge and a lower edge fixed and an opening at the lower side, and a supercooling releasing device having a curtain-shaped supercooling releasing cloth locked and attached with a string. 9. The first and second water coolers are arranged on both upper sides of the heat storage water tank so that the discharge ports of the respective cooling pipes face each other, and the first and second water coolers of the first and second water coolers are arranged. In the middle,
An ice heat storage device characterized in that a supercooling releasing device comprising a curtain-shaped subcooling releasing cloth stretched is arranged in a three-sided frame of an elastic member whose upper and lower edges are fixed and whose lower side is opened. 10. The ice heat storage device according to claim 9, wherein the center of the upper frame of the three-way frame made of an elastic member is engaged with a movable joint.