JPH07243732A - Ice heat storage device - Google Patents

Abstract

(57) [Summary] [Objective] To provide an ice heat storage device in which only ice nuclei that have flowed out from a heat storage tank are taken out and melted, thereby preventing freezing in a flow path and a subcooler. [Structure] The water in the heat storage tank 1 is supercooled by a pump 2 into a subcooler 7
Is supplied to and cooled, and as supercooled water is ejected from the supercooled water ejection nozzle 3 to collide with the supercooling release plate 10 to release supercooling to generate ice, which is stored in the heat storage tank 11. During the ice making process, the heat storage tank 1 to the pipe 14
If ice pieces are mixed in the cold water flowing out to the
Only the ice pieces mixed inside are taken out by the ice nucleus melting means 11,
To thaw.

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 for generating ice by utilizing a supercooling phenomenon of water and storing heat as a cold heat source for cooling, for example.

[0002]

2. Description of the Related Art In recent years, various types of ice heat storage devices have been developed in order to equalize electric power demand in summer. Various methods have been proposed for the ice heat storage device, but among them, the supercooling release method that generates supercooled water and releases ice to make ice makes the equipment simpler and for extra cooling. Attention has been paid to the fact that no medium is required.

In the ice heat storage device for making ice by releasing the supercooled water, the ice pieces of ice generated in the heat storage tank flow out from the intake port of the heat storage tank into the pipe, and then into the subcooler. It may enter and freeze in the subcooling, or freeze in the piping, which may make it impossible to stably and continuously supply the supercooled water.

In order to solve such a problem, for example, in an ice heat storage device disclosed in Japanese Patent Laid-Open No. 4-263722, ice detecting means is provided downstream of the intake port of the heat storage tank.
The cold water taken from the heat storage tank is supplied to the heat exchanger, and the cold water is heated by exchanging heat with the refrigerant in the heat exchanger, thereby melting the ice nuclei mixed in the cold water, and in the subcooler. Prevents freezing.

[0005]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In the conventional ice heat storage device disclosed in Japanese Patent No. 63722, there is a problem that much energy is wasted because the cold water that has flowed out to melt the ice nuclei that flowed out from the intake port of the heat storage tank is heated as it is. Specifically, the amount of heat required for melting the ice nuclei is about 3/10 of the amount of heat required for ice making.

Further, when the cold water is heated in the flow path of the cold water from the heat storage tank to the supercooler, the temperature of the cold water at the inlet of the supercooler rises and the degree of supercooling in the supercooler becomes extremely small, which is inefficient. There is a problem that is.

The present invention has been made in view of the above,
It is an object of the present invention to provide an ice heat storage device in which only ice and ice nuclei that have flowed out of a heat storage tank are taken out and melted, thereby preventing freezing in a flow path and a subcooler.

[0008]

In order to achieve the above object, an ice heat storage device of the present invention is a refrigerating device having a compressor, a condenser, a pressure reducing device, and an evaporator, and using the refrigerating device,
A supercooler for supercooling water or an aqueous solution, a supercooled water jetting means for jetting supercooled water or a supercooled aqueous solution from the supercooler, a supercooled water jet or a supercooled water jetted from the supercooled water jet means A supercooling releasing means for releasing supercooling of the cooling aqueous solution to generate ice, a heat storage tank for storing the ice generated by the supercooling releasing means, and a water or aqueous solution in the heat storage tank in a supercooled state In an ice heat storage device having a supply means for supplying to a supercooling means, water or an aqueous solution which is provided between an intake port for taking out water or an aqueous solution from the heat storage tank and the supercooling water device and is taken from the intake port The gist of the present invention is to have a means for melting ice nuclei for extracting and melting only ice or ice nuclei contained in.

The ice heat storage device of the present invention further comprises, as the ice nucleus melting means, a filter means for extracting only ice or ice nuclei contained in water or an aqueous solution taken from the water intake.
The gist is to have a heat generating means for melting ice or ice nuclei taken out by the filter means.

Further, the ice heat storage device of the present invention is characterized in that, as the heat generating means, it has a heater for heating the filter means in order to melt the ice and ice nuclei taken out by the filter means.

In the ice heat storage device of the present invention, as the heat generating means, the high temperature heat source utilizing heating means for heating the filter means by utilizing the high temperature heat source of the refrigerating device to melt the ice nuclei taken out by the filter means. It is a gist to have.

In addition to the above, the ice heat storage device of the present invention further comprises a flow rate detecting means for detecting a flow rate of water or an aqueous solution taken out from the water intake port and supplied to the subcooler,
The gist of the present invention is to have control means for controlling the ice nucleus melting means so as to melt the ice or ice nucleus based on the flow rate detected by the flow rate detecting means.

Further, in addition to the above, the ice heat storage device of the present invention has a temperature detecting means for detecting the temperature of the supercooled water or the supercooled aqueous solution from the supercooler and a temperature detected by the temperature detecting means. And a control means for controlling the ice nucleus melting means so as to melt the ice or ice nucleus based on the above.

In addition to the above, the ice heat storage device of the present invention detects the input value of the supply means, the input value detecting means, and the ice or ice nuclei based on the input value detected by the input value detecting means. The gist of the present invention is to have a control means for controlling the ice or ice nucleus melting means so as to melt the ice or ice nucleus.

[0015]

In the ice heat storage device of the present invention, the ice nucleus melting means is provided between the water intake for taking out water or the aqueous solution from the heat storage tank and the supercooling water device, and water is taken from the water intake by this ice nucleus melting means. Remove only ice or ice nuclei contained in water or aqueous solution and melt.

Further, in the ice heat storage device of the present invention, only ice or ice nuclei contained in the water or aqueous solution taken from the water intake is taken out by the filter means, and the ice nuclei taken out by this filter means is melted by the heat generating means. To do.

Further, in the ice heat storage device of the present invention, a heater is provided as a heat generating means, the heater heats the filter means, and the ice and ice nuclei taken out by the filter means are melted.

In the ice heat storage device of the present invention, the high temperature heat source of the refrigeration system is utilized to heat the filter means to melt the ice and ice nuclei taken out by the filter means.

Further, in the ice heat storage device of the present invention, the flow rate of water or aqueous solution taken out from the water intake port and supplied to the subcooler is detected, and the ice nucleus melting means is controlled based on the detected flow rate. Melt the ice and ice nuclei.

Further, in the ice heat storage device of the present invention, the temperature of the supercooled water or the supercooled aqueous solution from the subcooler is detected, and the ice nucleus melting means is controlled on the basis of the detected temperature, so that ice or ice Thaw the nucleus.

The ice heat storage device of the present invention detects the input value of the supply means, controls the ice nucleus melting means based on the detected input value, and melts ice and ice nuclei that have flowed out of the heat storage tank. To do.

[0022]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a diagram showing the overall structure of an ice heat storage device according to an embodiment of the present invention. The ice heat storage device shown in FIG. 1 has a heat storage tank 1 that stores water, which is a heat storage medium 9, and also stores ice 13 that has been generated. A pipe 14 for water intake is connected. A filter 18 is provided at the cold water intake 12.
Is attached to prevent the ice generated in the heat storage tank 1 from flowing into the pipe 14 through the cold water intake 12.

Further, the pipe 14 is connected to the subcooler 7 for producing supercooled water via the ice nucleus melting means 11 and the pump 2. The pump 2 takes out the water 9 in the heat storage tank 1 through the cold water intake 12 and the pipe 14, and the subcooler 7
To supercool water, and the supercool water is jetted from the supercool water jet nozzle 3.

A subcooling release plate 10 constituting a subcooling releasing means is provided at an upper portion of the heat storage tank 1 on the side opposite to the subcooling water jet nozzle 3, and the supercooling release plate 10 provided at this inclination is provided. The supercooled water jetted from the subcooled water jet nozzle 3 collides with the cooling release plate 10. Then, the supercooled water jetted from the supercooled water jet nozzle 3 collides with the subcooling release plate 10 in this manner, whereby the supercooling is released, whereby the ice 13 on the sherbet is deposited and the heat storage tank 1 It can be stored inside.

Further, one end of the subcooler 7 is connected to a refrigerant pipe 17 of the refrigeration system, and this refrigerant pipe 17 is connected to a four-way valve 8, from which the compressor 4, the condenser 5 and the load side heat are connected. It is connected to the subcooler 7 via the exchanger 16 and the flow rate adjusting valve 6.

FIG. 2 is a diagram showing a detailed structure of the ice nucleus melting means 11. As shown in the figure, the cold water intake 12
A flange portion 19 is formed in the middle of a pipe 14 communicating with the ice core, and a filter 21 is arranged so as to cross substantially the center of the flange portion 19, whereby an ice nucleus flowing out from the heat storage tank 1 through the pipe 14. 28 is captured by the filter 21. Further, the filter 21 is the heater 2
2, the filter 21 is heated by this, and the ice nuclei 28 captured by the filter 21 are heated and melted.

In the ice heat storage device constructed as described above, when the pump 2 is operated, the water as the heat storage medium 9 in the heat storage tank 1 is taken from the cold water intake 12 into the pipe 14, and along the pipe 14. It is supplied to the supercooler 7 through the ice nucleus melting means 11 and the pump 2. Then, the supercooler 7 exchanges heat with the refrigerant cooled by the condenser 5, whereby the supercooled water 15 at 0 ° C. or less becomes the supercooled water jet nozzle 3
Ejected into the atmosphere. This spouted supercooled water 15
As described above, the supercooling is released by colliding with the supercooling release plate 10, and returns to the water in the heat storage tank 1 while depositing the sherbet-like ice 13. By continuing this operation, the sherbet-like ice 13 is accumulated in the heat storage tank 1, and the sherbet-like ice thus generated is continuously performed until a predetermined ice making amount is reached.

The above-described operation can be performed, for example, by using inexpensive night-time electric power, and the cold-storage heat utilization operation can be performed in which the generated heat of melting of ice is used as a cooling load in the daytime. In this cold heat utilization operation, the four-way valve 8 is switched and the pump 2
By driving, the water, which is the heat storage medium 9 in the heat storage tank 1, is supplied to the subcooler 7 by the pump 2 via the pipe 14, and the heat is exchanged with the refrigerant in the subcooler 7 to condense the refrigerant. Then, it returns to the inside of the heat storage tank 1. Further, the condensed refrigerant is supplied to the load side heat exchanger 16 through the refrigerant pipe 17, and is evaporated by exchanging heat with the atmosphere in the load side heat exchanger 16 to perform cooling. In this case, the subcooler 7
Acts as a heat exchanger for cold water.

In the above ice production process, when ice making progresses and the water temperature in the heat storage tank 1 becomes around 0 ° C., fine ice pieces flow out into the pipe 14 from the cold water intake port 12 at the bottom of the heat storage tank 1. As a result, ice grows with these ice pieces as nuclei in the subcooler 7 and the subcooling water jet nozzle 3.
A phenomenon occurs in which the flow path is blocked in the water circulation path and supercooled water cannot be supplied. Therefore, prevention of freezing in the subcooler 7 and the subcooling water jet nozzle 3 is essential for the ice heat storage device using the supercooling water.

By the way, once freezing occurs in the supercooler 7, the four-way valve 8 is switched to perform the defrosting operation to melt the ice in the subcooler 7 and the subcooling water jet nozzle 3, and then The process of switching the four-way valve 8 again and restarting the ice making operation is performed. However, once the ice nuclei are mixed in the middle of the pipe 14, the heat storage medium 9 reaches a temperature at which the ice nuclei can be thawed.
It is impossible to remove ice nuclei without heating and circulating the water. And when I made ice again,
Freezing due to ice nucleation is inevitable.

Therefore, in the ice heat storage device of the present invention, the ice nucleus melting means 11 is provided in order to prevent the above-mentioned problems due to the mixture of ice nuclei. This ice nucleus melting means 1
As shown in detail in FIG. 2, a flange portion 19 is provided in the middle of the pipe 14, and the filter 2 is provided in the flange portion 19.
1, the ice nuclei 28 mixed in the pipe 14 are captured. Thus, the ice captured by the filter 21 is condensed there, but by heating the filter 21 by the heaters 22 connected to both ends of the filter 21, the ice and ice nuclei captured by the filter 21 are melted, The ice nuclei in the pipe 14 are removed. As a result,
Freezing in the subcooler 7 and the subcooling water jet nozzle 3 is prevented, and the ice making process can be continuously performed.

FIG. 3 is a diagram showing the overall construction of an ice heat storage device according to another embodiment of the present invention. In the embodiment shown in the figure, the ice nucleus melting means 11 uses the heater 22 to heat the filter 21 in the embodiment shown in FIG. 1, whereas the bypass piping for bypassing the high temperature refrigerant on the refrigeration cycle side is used. 23, and an ice nucleus melting means 110 configured to provide a heating means 39 for heating the filter 21 provided in the flange portion 19 with the high temperature refrigerant from the bypass pipe 23. The other constructional effects are the same as those of the embodiment shown in FIG.

Also in the ice heat storage device having such a structure, the ice and ice nuclei 28 mixed in the pipe 14 are filtered by the filter 21.
The captured ice is melted by heating the filter 21 with the high temperature refrigerant from the bypass pipe 23, and the ice nuclei in the pipe 14 are removed. As a result, freezing in the subcooler 7 and the subcooling water jet nozzle 3 is prevented, and the ice making process can be continuously performed.

FIG. 4 is a diagram showing in detail the construction of the main part of an ice heat storage device according to still another embodiment of the present invention. In the embodiment shown in the figure, a flow rate sensor 24 for detecting the flow rate of cold water is connected between the ice nucleus melting means 11 and the pump 2 in the ice heat storage apparatus shown in FIG. Is supplied to the control unit 25, and the control unit 25 controls the heating of the heater 22 based on the flow rate, thereby heating the filter 21 of the ice nucleus melting means 11, which is different. The construction operation of is the same as that of the embodiment of FIG.

The operation of the ice heat storage device thus configured will be described with reference to the flow chart shown in FIG.

While ice making is started and during the ice making operation (step 110), the controller 25 does not control the heating of the heater 22 while the flow rate detected by the flow rate sensor 24 is maintained at a predetermined value or more. In, the ice nuclei are mixed into the pipe 14 (step 120), the ice nuclei are trapped by the filter 21 (step 130), and are condensed on the filter 21, and the condensation blocks the cold water flow path. When it becomes impossible to secure the flow rate, the flow rate decreases, and when this flow rate decrease is detected by the flow rate sensor 24 (step 140), the control unit 25 controls the heater 22 to heat in response to this, and the ice nucleus melts. Means 11 are activated (step 15)
0).

The heating of the heater 22 heats the filter 21, which melts the ice nuclei captured by the filter 21 and the flow rate of the cold water returns to its original value, and the flow rate sensor 24 detects that the flow rate has recovered. (Step 16
0) As a result, the heating control of the heater 22 is stopped by the action of the controller 25, that is, the operation of the ice nucleus melting means 11 is stopped (step 170). By repeating this process at the time of ice making, the ice making process is continuously performed while preventing the ice nuclei from being mixed into the subcooler 7, and when the ice making reaches the specified amount (step 180), the ice making is finished.

FIG. 6 is a diagram showing in detail the construction of the essential parts of an ice heat storage device according to another embodiment of the present invention. In the embodiment shown in the figure, a temperature sensor 26 for detecting the temperature of the supercooled water ejected from the supercooled water ejection nozzle 3 is provided in place of the flow rate sensor 24 in the ice heat storage device shown in FIG. The temperature information detected by 26 is supplied to the control unit 29, and the control unit 29 controls the heating of the heater 22 based on the temperature of the supercooled water, thereby heating the filter 21 of the ice nucleus melting means 11. The other points are the same as those of the embodiment shown in FIG.

The operation of the ice heat storage device configured as described above will be described with reference to the flowchart shown in FIG.

If the temperature of the supercooled water detected by the temperature sensor 26 is equal to or higher than a predetermined value during the ice making operation (step 110) during the ice making operation, the controller 29 causes the heater 2 to operate.
Although 2 is not heated and controlled, ice nuclei are mixed in the pipe 14 during ice making (step 120), and the ice nuclei are captured by the filter 21 (step 130) and condensed on the filter 21. By this condensation, the filter 21 When the cooling water flow path is blocked and cannot be secured due to a decrease in the flow rate and the cooling capacity of the subcooler 7 is constant, the degree of supercooling increases, which causes the temperature of the supercooling water to rise. Changes to decrease. Therefore, this temperature drop change is caused by the temperature sensor 26.
When it is detected by (step 240), the control unit 29 controls the heater 22 to heat in response to this, and the ice nucleus melting means 11 is operated (step 250).

The heating of the heater 22 heats the filter 21, whereby the ice and ice nuclei captured by the filter 21 are melted, the cold water flow path is secured, and when the flow rate returns to its original level, the supercooler is cooled. The degree of supercooling in 7 decreases, and the temperature of the supercooled water from the supercooler 7 rises to the original temperature (step 260). The recovery of the temperature rise is detected by the temperature sensor 26, and thereby the control of the controller 29 stops the heating control of the heater 22, that is, the operation of the ice nucleus melting means 11 is stopped (step 270). By repeating this process during ice making, the ice making process is continuously performed while preventing the mixing of ice nuclei into the subcooler 7, and when the ice making reaches the specified amount (step 280), the ice making is finished.

FIG. 8 is a diagram showing in detail the construction of the main part of an ice heat storage device according to still another embodiment of the present invention. In the embodiment shown in the figure, an input detector 27 for detecting the input value of the pump 2 is provided in place of the flow rate sensor 24 in the ice heat storage device shown in FIG. 4, and the input value detected by this input detector 27 is controlled. The heater 22 is heated by the controller 30 based on the input value by the controller 30, and the filter 21 of the ice nucleus melting means 11 is heated by the controller 22. The construction operation is the same as that of the embodiment shown in FIG.

The operation of the ice heat storage device configured as described above will be described with reference to the flowchart shown in FIG.

If the input value of the pump 2 detected by the input detector 27 is equal to or less than the predetermined value during the ice making operation (step 110) during the ice making operation, the controller 30 does not control the heating of the heater 22. During the ice making process, ice nuclei are mixed in the pipe 14 (step 120), and the ice nuclei are captured by the filter 21 (step 130) and condensed on the filter 21. Due to this condensation, the cold water flow path is blocked by the filter 21. When the flow rate decreases due to the slippage and the inability to secure it, the input value of the pump 2 increases. Therefore, when the increase in the input value is detected by the input detector 27 (step 340), the control unit responds to this. 30 controls to heat the heater 22,
The ice nucleus melting means 11 is activated (step 350).

The heating of the heater 22 heats the filter 21, which melts the ice nuclei captured by the filter 21, secures the cold water flow path, and returns the flow rate to the original value. Is reduced (step 36
0). This decrease in input value is detected by the input detector 27,
As a result, the heating control of the heater 22 is stopped by the action of the control unit 25, that is, the operation of the ice nucleus melting means 11 is stopped (step 370). By repeatedly performing this process during ice making, the ice making process is continuously performed while preventing the mixing of ice nuclei into the supercooler 7, and when the ice making reaches the specified amount (step 380), the ice making is finished.

In the above-mentioned nuclear embodiment, the case of supercooling water has been described, but it goes without saying that an aqueous solution may be used instead of water.

[0048]

As described above, according to the present invention,
An ice nuclei melting means is provided between the intake port for taking out water or aqueous solution from the heat storage tank and the supercooling water device, and only ice or ice nuclei contained in the water or aqueous solution taken from the intake port by this ice nucleus melting means Because it does not heat the cold water taken from the heat storage tank unlike the conventional method, it melts only ice and ice nuclei with a small amount of heat, and it is possible to prevent mixing into the subcooler, greatly increasing the amount of heat. It is possible to reduce the amount of ice and improve the rate of ice making.

Further, according to the present invention, only the ice nuclei contained in the water or the aqueous solution taken from the water intake is taken out by the filter means, and the ice and ice nuclei taken out by the filter means are melted by the heat generating means. Therefore, it is possible to properly prevent the mixing of ice and ice nuclei into the supercooler and improve the ice making rate.

Further, according to the present invention, since the heater is used as the heat generating means and the filter means is heated by the heater to melt the ice nuclei taken out by the filter means, it is possible to supercool with a relatively simple structure. Properly prevent ice nuclei from mixing in the vessel,
The ice making rate can be improved.

According to the present invention, the high temperature heat source of the refrigerating apparatus is used to heat the filter means to melt the ice and ice nuclei taken out by the filter means. Therefore, it is simple and economical to provide a new heat source. The ice nuclei can be effectively melted, and the ice making rate can be improved.

Further, according to the present invention, the flow rate of the water or the aqueous solution taken out from the intake port and supplied to the subcooler is detected, and the ice nucleus melting means is controlled based on the detected flow rate, Since ice and ice nuclei are thawed, the ice nuclei can be thawed with a minimum amount of heat only when necessary, so that economic efficiency can be achieved and the ice making rate can be improved.

Furthermore, according to the present invention, the temperature of the supercooled water or the supercooled aqueous solution from the subcooler is detected, and the ice nuclei melting means is controlled based on the detected temperature to remove ice or ice nuclei. Since it is melted, it is possible to melt ice or ice nuclei with a minimum amount of heat only when necessary, which makes it possible to achieve economic efficiency and improve the ice making rate.

According to the present invention, the input value of, for example, a pump constituting the supply means is detected, and the ice nucleus melting means is controlled based on the detected input value to melt ice or ice nuclei. Only at such times, it is possible to melt ice and ice nuclei with a minimum amount of heat, which makes it possible to achieve economic efficiency and improve the rate of ice making.

[Brief description of drawings]

FIG. 1 is a diagram showing an overall configuration of an ice heat storage device according to an embodiment of the present invention.

FIG. 2 is a diagram showing a detailed structure of an ice nucleus melting means used in the ice heat storage device shown in FIG.

FIG. 3 is a diagram showing an overall configuration of an ice heat storage device according to another embodiment of the present invention.

FIG. 4 is a diagram showing in detail a configuration of a main part of an ice heat storage device according to still another embodiment of the present invention.

5 is a flow chart showing the operation of the ice heat storage device shown in FIG.

FIG. 6 is a diagram showing in detail a configuration of a main part of an ice heat storage device according to another embodiment of the present invention.

7 is a flowchart showing the operation of the ice heat storage device shown in FIG.

FIG. 8 is a diagram showing in detail a configuration of a main part of an ice heat storage device according to still another embodiment of the present invention.

9 is a flowchart showing an operation of the ice heat storage device shown in FIG.

[Explanation of symbols]

 1 Heat Storage Tank 2 Pump 3 Supercooled Water Jet Nozzle 4 Compressor 5 Condenser 7 Supercooler 10 Supercooling Release Plate 11 Ice Nucleus Melting Means 12 Cold Water Intake Port 14 Piping

Front page continued (72) Inventor Yoshihiro Ito 8 Shinsugita-cho, Isogo-ku, Yokohama, Kanagawa Prefecture

Claims (7)

[Claims] 1. A refrigeration apparatus having a compressor, a condenser, a decompression device, and an evaporator, a subcooler for subcooling water or an aqueous solution using the refrigeration apparatus, and subcooling from the subcooler. Supercooled water jetting means for jetting water or supercooled aqueous solution,
A supercooling releasing means for releasing supercooling of the supercooled water or the supercooled aqueous solution to generate ice, a heat storage tank for storing the ice generated by the supercooling releasing means, and a water or aqueous solution in the heat storage tank In an ice heat storage device having a supply means for supplying the supercooling means to bring it into a cooling state, the ice heat storage apparatus is provided between an intake port for taking out water or an aqueous solution from the heat storage tank and the supercooling water device, and An ice heat storage device having an ice nucleus melting means for extracting and melting only ice or ice nuclei contained in water or an aqueous solution to be taken. 2. The ice nucleus melting means melts ice or ice nuclei taken out by the filter means, and filter means for taking out only ice or ice nuclei contained in water or an aqueous solution taken from the water intake. The ice heat storage device according to claim 1, further comprising a heat generating means. 3. The ice heat storage device according to claim 2, wherein the heat generating means has a heater for heating the filter means to melt the ice or ice nuclei taken out by the filter means. 4. The heat generating means includes a high temperature heat source utilizing heating means for heating the filter means by utilizing a high temperature heat source of the refrigerating apparatus to melt ice or ice nuclei taken out by the filter means. The ice heat storage device according to claim 2, which is characterized in that. 5. A flow rate detecting means for detecting a flow rate of water or an aqueous solution taken out from the water intake port and supplied to the subcooler, and the ice or ice nucleus based on the flow rate detected by the flow rate detecting means. Control means for controlling the ice nucleus melting means so as to melt the ice nuclei.
The ice heat storage device described. 6. A temperature detecting means for detecting the temperature of the supercooled water or the supercooled aqueous solution from the supercooler, and the temperature detecting means for melting the ice or ice nucleus based on the temperature detected by the temperature detecting means. The ice heat storage device according to claim 1, further comprising a control unit that controls the ice or ice nucleus melting unit. 7. An input value detecting means for detecting an input value of the supplying means, and controlling the ice nucleus melting means so as to melt the ice or ice nucleus based on the input value detected by the input value detecting means. 3. The ice heat storage device according to claim 1, further comprising: