KR101701999B1 - Ice thermal storage system for operating refrigerated showcase and storage - Google Patents

Abstract

The present invention relates to an ice thermal storage system and, more specifically, relates to an ice thermal storage system for operating a refrigerated showcase and storage, wherein an ice thermal storage tank and a refrigerated show case of an ice thermal storage system used for cooling a conventional building are connected, and a brine of the ice thermal storage tank is circulated to the refrigerated showcase to be refrigerated in winter season and intermediate season. Moreover, in summer season, a freezer connected with the refrigerated showcase is operated for the brine to be autonomously circulated to perform refrigeration. Therefore, energy and operation costs can be saved by performing air-conditioning and refrigeration of the showcase with the ice thermal storage tank.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ice storage system for a refrigerator,

More particularly, the present invention relates to an ice storage heat system, and more particularly, to an ice storage heat system used for cooling an existing building and a refrigeration showcase, and a refrigeration showcase for circulating ice in a refrigeration showcase during the winter season and the middle season, A refrigerating showcase and a storage for driving a refrigerator by operating a refrigerator associated with a refrigerator showcase and circulating the brine to perform refrigeration by simultaneously performing cooling and refrigeration of a showcase using an ice storage heat tank, ≪ / RTI >

In general, the ice storage system is an air conditioner that can be cooled by using cold heat stored in the state where the low temperature refrigerator is operated in the night while the low temperature refrigerator is operated in the day after the cold temperature is stored by operating the low temperature refrigerator at night. It is installed and operated mainly in large buildings.

These ice storage systems fill the capsules that easily absorb the heat inside the storage tank, pass the high temperature brine (ethylene glycol) through the material, make the primary heat exchange, store the heat source, To the side of the heat exchanger constituting the closed circuit so as to perform the second heat exchange with the cold water circulating water constituting another closed circuit in the heat exchanger and then the heat exchanged circulated water is sent to the heat radiator such as the fan coil unit for the third heat exchange, And ice caps are generally used to encapsulate a solution of water and a crude material (room temperature freezing material) diluted in a spherical plastic container into capsules As shown in Fig.

1, the ice storage heat storage system 100 includes a heat storage tank 110, a refrigerator 120, a heat exchanger 130, a hot- (140), a supercooling pump (150), an air-cooling closed circuit (160), and a cooling air cooling pump (170).

First, the thermal storage tank 110 has a conventional structure in which an ice capsule is provided, and the ice capsules are cooled by the brine into which the ice capsules are stored to store ice storage heat.

The refrigerator 120 has a cooling tower 121 and a cooling water pump 123 in a normal structure to constitute a cooling closed loop 125.

The heat exchanger 130 cools the cooling water by exchanging the cooling water circulated through the brine, the cooling water circulation circuit 131 and the cooling water circulation pump 133 in a normal structure.

The shroud closed circuit 140 connects the heat storage tank 110 and the refrigerator 120 to circulate the brine to the storage tank 110 and the refrigerator 120.

On the other hand, the hot-water supply pump 150 is installed in the hot-closed circuit 140 as an inverter pump, and the output is controlled in accordance with the heating load to circulate the brine.

The air-cooled closed circuit 160 connects the heat storage tank 110 and the heat exchanger 130 to circulate the brine to the heat storage tank 110 and the heat exchanger 130.

Furthermore, the cooling air circulating pump 170 is installed in the air-cooling closed circuit 160 to circulate the brine.

The operation of the above-described ice storage and heat storage system will be described below.

"Cooling"

 The hot brine in the thermal storage tank 110 is supplied to the refrigerating machine 120 side via the shrouded closed circuit 140 when the shroud pump 150 installed in the shrouded closed circuit 140 operates. At this time, the supplied high-temperature brine is changed to a low-temperature state by heat exchange with the refrigerator 120, and the low-temperature brine flows into the heat storage tank 110 through the closed- As the brine is circulated through the continuous freezer 120 as described above, the icemaking in which the water in the ice capsules inside the thermal storage tank 110 is changed into ice is performed. Also, since the cooling pump 170 is not operated, the brine of the thermal storage tank 110 circulates only in the cooling-and-closing circuit 140.

"Cooling"

The cold brine inside the thermal storage tank 110 is supplied to the heat exchanger 130 side via the cooling cold closed circuit 160 when the cooling cold pump 170 installed in the cold cold closed circuit 160 is operated. At this time, the supplied brine of the low temperature is exchanged with the cooling water passing through the heat exchanger 130 and is changed into a high temperature state. The brine of high temperature flows into the storage tank 110 through the shrink- Change.

The hot brine discharged from the heat exchanger 130 side through the hot-closed circuit 140 is cooled in the freezer 120 and is supplied to the heat exchanger 130 through the cold-closed circuit 160 together with the low-temperature brine stored in the heat storage tank 110 130).

The hot brine discharged from the heat exchanger 130 through the air cooling closed circuit 160 is partially introduced into the refrigerator 120 through the closed cooling circuit 140 and the remaining part flows into the heat storage tank 110, Is discharged to the heat exchanger (130) again via the closed circuit (160) and circulated continuously.

However, since such an ice storage system is applied only to cooling, it has a problem that it can not be used in other seasons. This means that the operating rate of the ice storage system installed with expensive initial installation costs is very low.

In the case of the existing patent application No. 10-0989629 (a showcase using an ice storage heat and a refrigeration and air conditioning system integrated with a cooling and heating system) as shown in FIG. 2, a showcase using an ice storage heat and a refrigeration and air conditioning system integrated with a cooling and heating system constitute a refrigeration cycle for a showcase A compressor 1, a condenser 2, an expansion valve 3 and an evaporator 4 provided on a refrigerant line 5; A refrigerant line (6) for ice axes separately installed to connect the condenser (2) and the compressor (1); An ice-making heat exchanger (9a) provided on the ice-making-side refrigerant line (6); An ice-making expansion valve (7) provided in front of the ice-making heat exchanger (9a) of the ice-making shaft refrigerant line (6); A supercooling refrigerant line (8) separately installed to connect the condenser (2) and the expansion valve (3); A supercooling heat exchanger 9b provided on the supercooling refrigerant line 8; An ice storage tank 9 in which the ice making heat exchanger 9a and the supercooling heat exchanger 9b are accommodated and a heating medium is filled therein; An air conditioner (10) provided separately from a condenser (2) or an evaporator (4) constituting the refrigerator cycle for a showcase, and being provided to serve as a condenser or an evaporator for cooling or heating a required indoor space; An expansion valve (11) for a cooling and heating system provided for a cooling operation of a summer air conditioner in front of the cooling / heating unit (10); A refrigerant supply line 12 for the heating operation of the cooling / heating unit for the winter season, which is connected to the cooling / heating unit 10 so as not to pass the refrigerant discharged from the compressor 1 through the expansion valve 11 for the air conditioner; The expansion valve 11 for the cooling and heating system is moved forward so as to send the refrigerant passing through the supercooling heat exchanger 9b of the refrigerant or ice storage tank 9 passing through the condenser 2 to the cooling and heating device 10 via the expansion valve 11 for the cooling / A refrigerant supply line 13 for a cooling / heating unit cooling operation connected to the outdoor heat exchanger; And a refrigerant recovery line (14) for cooling and cooling the air conditioner in the cooling and heating system connected to the compressor (1) so as to send the refrigerant from the air conditioner (10) to the compressor (1).

However, such conventional refrigerated and air-conditioning integrated refrigerating and air-conditioning systems using a refrigerator and a refrigerator have a compressor, a condenser, a plurality of expansion valves, a three-way valve and a check valve required for a refrigerating cycle of a showcase, There is a problem that the installation cost is increased due to the structure in which the refrigerant is circulated by using the ice-on-coil ice storage tank, and the operating cost is increased due to the large amount of electricity used.

In addition, such a conventional showcase using ice storage heat and an integrated refrigeration / air conditioning system integrated with a cooling / heating system have a high possibility of causing a problem in the construction of the refrigeration cycle due to complicated control, so that it can not be applied to an actual system and can not be commercialized until now.

Domestic patent registration 10-0989629

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a refrigerator and a refrigerator which are connected to a refrigeration showcase of an ice storage heat system used for cooling an existing building, In the summer, a refrigerator associated with a refrigerated showcase is operated to circulate the brine to perform refrigeration. Thus, a refrigerated showcase and a refrigerator are operated to simultaneously perform cooling and refrigeration of a showcase using an ice storage tank, thereby saving energy and operation cost And an object thereof is to provide a possible ice storage heat system.

In addition, the present invention can reduce the power consumption of the refrigerator and other equipments due to the fact that the refrigerator is operated in the part load operation for 24 hours in the conventional showcase characteristics, and it is unnecessary to install the preliminary refrigerator installed in the refrigerator of the showcase The present invention has another object to provide an ice storage heat system capable of driving a refrigerator showcase and a storage for saving installation cost and saving energy and operation cost according to the uninstalled freezer.

Further, according to the present invention, the refrigeration pump on the heat exchanger side and the refrigeration pump on the refrigeration showcase side are controlled by an inverter to control the brine flow rate according to the cooling or refrigeration load, thereby preventing unnecessary power and energy waste or loss, There is another object to provide an ice storage heat system capable of driving a refrigerator showcase and a storage room that can be achieved.

According to an aspect of the present invention,

In an ice storage heat system including a heat storage tank, a refrigerator, a heat exchanger, a hot-closed circuit, a hot-water circulating pump, a cold-closed close circuit and a cold air circulating pump, A refrigerated closed circuit; A refrigeration pump installed in the refrigerated closed circuit and circulating the brine; And a refrigeration showcase installed at a rear end of the refrigeration pump in the refrigeration closed circuit and performing refrigeration through a brine supplied from the refrigeration closed circuit.

Here, the ice storage heat system capable of driving the refrigeration showcase and the reservoir includes a first bypass line branched from the refrigerated closed circuit so as to circulate the brine in the refrigerated closed circuit during the summer season; A refrigerating chiller installed in the first bypass line to cool the brine; A second bypass line for circulating the brine discharged from the refrigeration showcase to the refrigerating chiller; A first three-way valve installed at the refrigerated closed circuit and the first bypass line connection portion to change the flow path of the brine; And a second three-way valve installed at a discharge side of the refrigerating chiller and at the second bypass line connecting part to change the flow path of the brine.

Here, the ice storage heat system capable of driving the refrigeration showcase and the reservoir may be configured such that the brine of the heat storage tank that is being cooled during the winter season is cooled and supplied to the refrigeration showcase to perform refrigeration, and the brine is cooled by the refrigeration refrigerator during the summer season, It is supplied as a refrigeration showcase to perform refrigeration.

Here, the ice storage heat system capable of driving the refrigeration showcase and the reservoir may be configured such that the brine of the storage tank that is being cooled during the winter season is supplied to the refrigeration showcase to perform refrigeration, and the brine of the storage tank is cooled by the refrigerator And the brine of the thermal storage tank is cooled and supplied to the refrigeration showcase to perform refrigeration.

Here, the refrigerating pump is an inverter pump for controlling the flow rate of the brine according to the refrigeration load.

Here, the cooling air pump is an inverter pump for controlling the flow rate of the brine according to the cooling load.

Here, the refrigerator further includes: a third bypass line connected to the front and rear ends of the cooling tower on the cooling closed circuit to bypass the cooling water to prevent the cooling water temperature from falling below a predetermined temperature during the winter season; A third three-way valve installed at the cooling closed circuit and the third bypass line for changing the flow path of the cooling water; A temperature sensor installed at the third bypass line for sensing the temperature of the cooling water; And a heater installed in the third bypass line for controlling the temperature of the cooling water by heating the cooling water according to the temperature of the cooling water sensed by the temperature sensor.

According to the refrigeration showcase of the present invention having the above-described structure and the ice storage heat storage system capable of driving the storage warehouse, the ice storage heat exchanger of the ice storage heat system used for cooling the existing building is connected to the refrigeration showcase, and the ice storage heat exchanger brine is circulated in the refrigeration showcase In the summer, the refrigerator associated with the refrigeration showcase is operated to circulate the brine by itself, so that the refrigeration and the refrigeration of the showcase are simultaneously performed using the ice storage tank, thereby saving energy and operation cost .

In addition, according to the present invention, since the refrigerator is operated in the partial load operation most of the time, the refrigerator can save power consumption, It is unnecessary to reduce the installation cost and to save the energy and the operation cost according to the non-installation of the preliminary freezer.

Further, according to the present invention, it is possible to prevent unnecessary power and energy from being wasted or lost by controlling the refrigeration pump on the heat exchanger side and the refrigeration pump on the refrigeration showcase side by controlling the flow rate of brine according to cooling or refrigeration load, Can be achieved.

1 is a block diagram showing a configuration of an ice storage heat system used for cooling a conventional building.
2 is a block diagram showing the configuration of a conventional refrigerator-integrated refrigerator / air-conditioning system using ice storage heat.
3 is a block diagram illustrating the configuration of an ice storage heat system capable of driving a refrigeration showcase and a storage room according to the present invention.
4 to 7 are explanatory diagrams for explaining the operation of the ice storage heat system capable of driving the refrigeration showcase and the storage room according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a refrigeration showcase according to the present invention and a configuration of an ice storage heat system capable of driving a storage room will be described in detail with reference to the accompanying drawings.

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions of the present invention, and these may be changed according to the intention of the user, the operator, or the like. Therefore, the definition should be based on the contents throughout this specification.

3 is a block diagram illustrating the configuration of an ice storage heat system capable of driving a refrigeration showcase and a storage room according to the present invention.

The ice storage heat system (A) capable of driving the refrigeration showcase and the reservoir according to the present invention includes a heat storage tank 110, a refrigerator 120, a heat exchanger 130, a hot-closed circuit 140, A refrigerating circuit 190, a refrigerating showcase 200, a first bypass line 210, a refrigerating chiller 220, a second bypass line 230, A first three-way valve V1, and a second three-way valve V2.

First, the heat storage tank 110, the refrigerator 120, the heat exchanger 130, the hot-sealed close circuit 140, the hot-water circulation pump 150, the cold- (FIG. 1). However, the cooling pump 170 is applied with an inverter pump to adjust the flow rate of the brine according to the cooling load.

The refrigerator 120 has a third bypass line 126 connected to the front and rear ends of the cooling tower 121 on the cooling closed circuit 125 to bypass the cooling water to prevent the cooling water temperature from falling below a predetermined temperature during the winter season, A third three-way valve V3 installed in the cooling closed circuit 125 and the third bypass line 126 for varying the flow rate of the cooling water and a third three-way valve V3 provided in the third bypass line 126 for sensing the temperature of the cooling water And a heater 128 installed in the temperature sensor 127 and the third bypass line 126 for controlling the temperature of the cooling water by heating the cooling water according to the temperature of the cooling water sensed by the temperature sensor 127.

One end of the cold closed circuit 180 is connected to one side of the cold closed circuit 160 (the output side of the heat storage tank) so as to circulate the brine discharged from the heat storage tank 110. The other end of the cold closed circuit 160 (the input side of the heat storage tank) And the other end is connected to constitute a closed circuit.

Further, the refrigerating pump 190 is installed in the refrigerated closed circuit 180 to circulate the brine. Here, the refrigeration pump 190 is an inverter pump so as to adjust the flow rate of the brine according to the refrigerating load.

The refrigerated showcase 200 is installed at the rear end of the refrigerating pump 190 in the refrigerated closed circuit 180 and performs refrigeration through the brine supplied from the refrigerated closed circuit 180. At this time, a plurality of refrigerated showcase 200 can be connected in parallel, and a type that does not have a general self-refrigerating type but is supplied with brine and discharges cool air through heat exchange is applied.

Subsequently, the first bypass line 210 branches at the refrigerated closed circuit 180 to circulate the brine in the refrigerated closed circuit 180 during the summer season.

The refrigerating chiller 220 is installed in the first bypass line 210 to cool the brine.

The second bypass line 230 circulates the brine discharged from the refrigeration showcase 200 to the refrigerator 220 for refrigeration.

The first three-way valve (V1) is provided at a connection portion between the refrigerant circuit (180) and the first bypass line (210) to change the flow path of the brine.

Next, the second three-way valve V2 is installed on the refrigerated closed circuit 180 at a connection portion between the discharge side of the refrigerating chiller 220 and the second bypass line 230 to change the flow path of the brine.

In the meantime, the ice storage heat system (A) capable of driving the refrigeration showcase and the reservoir according to the present invention can cool the brine of the heat storage tank (110) during the winter season and supply it to the refrigeration showcase (200) The brine is cooled by the freezer 220 and supplied to the refrigeration showcase 200 to perform refrigeration. The brine of the thermally-cooled storage tank 110 is supplied to the refrigeration showcase 200 during the winter season to perform refrigeration, The brine of the thermal storage tank 110 is cooled by the freezer 120 and the thermal storage tank 110 is cooled while the brine of the thermal storage tank 110 is cooled and supplied to the refrigeration showcase 200 to perform refrigeration.

Hereinafter, the operation of the ice storage heat system capable of driving the refrigeration showcase and the storage according to the present invention will be described in detail with reference to the accompanying drawings.

4 to 7 are explanatory diagrams for explaining the operation of the ice storage heat system capable of driving the refrigeration showcase and the storage room according to the present invention.

"Summer - cold weather"

First, as shown in FIG. 4, the first three-way valve V1 and the second three-way valve V2 change the flow path so that the brine is circulated only within the refrigerated closed circuit 180. That is, the brine in the refrigerated closed circuit 180 flows through the refrigerating pump 190, the first three-way valve V1, the first bypass line 210, the refrigerating chiller 220, the refrigerated showcase 200, Line 210 to the second three-way valve V2 and the refrigerating pump 190 are continuously circulated so that the refrigerating showcase 200 itself operates independently of the cooling and shaking.

The hot brine inside the thermal storage tank 110 is supplied to the refrigerating machine 120 through the shrouded closed circuit 140 when the shroud pump 150 installed in the shrouded closed circuit 140 is operated. At this time, the supplied high-temperature brine is changed to a low-temperature state by heat exchange with the refrigerator 120, and the low-temperature brine flows into the heat storage tank 110 through the closed-

That is, the cooling water of the freezer 120 is continuously circulated from the freezer 120 to the cooling loop 125 to the cooling tower 121 to the cooling water pump 123 to the cooling loop 125 to the freezer 120, .

As described above, the brine is circulated through the continuous freezer 120 to perform ice making on the ice capsules in the thermal storage tank 110. At this time, since the cooling pump 170 is not operated, the brine of the thermal storage tank 110 circulates only in the closed-circulation cooling circuit 140.

"Summer - Cooling"

First, as shown in FIG. 5, the first three-way valve V1 and the second three-way valve V2 change the flow path so that the brine is circulated only within the refrigerated circuit 180. That is, the brine in the refrigerated closed circuit 180 flows through the refrigerating pump 190, the first three-way valve V1, the first bypass line 210, the refrigerating chiller 220, the refrigerated showcase 200, Line 210 to the second three-way valve V2 and the refrigerating pump 190 are continuously circulated so that the refrigerating showcase 200 itself operates independently of the cooling and shaking.

The cold brine in the thermal storage tank 110 is supplied to the heat exchanger 130 side via the cold cold closed circuit 160 when the cold cold storage pump 170 installed in the cold storage closed circuit 160 operates. At this time, the supplied brine of the low temperature is exchanged with the cooling water passing through the heat exchanger 130 and is changed into a high temperature state. The brine of high temperature flows into the storage tank 110 through the shrink- Change.

The hot brine discharged from the heat exchanger 130 side through the hot-closed circuit 140 is cooled in the freezer 120 and is supplied to the heat exchanger 130 through the cold-closed circuit 160 together with the low-temperature brine stored in the heat storage tank 110 130).

The hot brine discharged from the heat exchanger 130 through the air cooling closed circuit 160 is partially introduced into the refrigerator 120 through the closed cooling circuit 140 and the remaining part flows into the heat storage tank 110, Is discharged to the heat exchanger (130) again via the closed circuit (160) and circulated continuously.

"Winter season - cold weather"

First, as shown in FIG. 6, the first three-way valve V1 and the second three-way valve V2 change the flow path so that the brine is supplied to the refrigerated closed circuit 180 through the heat storage tank 110. [

The hot brine inside the thermal storage tank 110 is supplied to the side of the refrigerating machine 120 which is in operation via the shrouded closed circuit 140 when the shroud pump 150 installed in the shrouded closed circuit 140 is operated. At this time, the supplied brine of the high temperature is changed to a low temperature state by heat exchange with the refrigerator 120, and the brine of low temperature flows into the storage tank 110 again through the closed- As described above, the brine is circulated through the continuous freezer 120 to perform ice making on the ice capsules in the thermal storage tank 110.

At the same time, when the cold water circulation pump 170 installed in the cold side closed circuit 160 operates, the low temperature brine in the thermal storage tank 110 is supplied to the cold showcase 200 via the cold side closed circuit 160 and the closed circuit 180, So that cold air is generated in the refrigeration showcase 200. At this time, the low-temperature brine supplied thereto is changed to a high-temperature state while exchanging heat with the refrigerant or the cooling water of the refrigeration showcase 200. The high-temperature brine is again introduced into the heat storage tank 110 via the refrigerated closed circuit 180 and the cold- And is changed into a low-temperature brine.

That is, the brine of the heat storage tank 110 is continuously circulated from the storage tank 110 to the shrouded closed circuit 140 to the shrouded pump 150 to the cooler 120 to the shrouded closed circuit 140 to the thermal storage tank 110, The cooling water is continuously circulated from the refrigerator 120 to the cooling loop 125 to the third bypass line 126 to the heater 128 to the cooling water pump 123 to the cooling loop 125 to the freezer 120, The brine of the thermal storage tank 110 is discharged from the storage tank 110 to the air cooling closed circuit 160 to the cooling air circulating pump 170 to the cooling closed circuit 180 to the cooling pump 190 to the first three- The second three-way valve V2, the cooling circuit 180, the air-cooling closed circuit 160, and the heat storage tank 110 are continuously circulated so that the cooling is performed.

At this time, since the cooling water circulation pump 133 of the heat exchanger 130 is not operated, the brine passes through the heat exchanger 130 as it is and is recovered to the heat storage tank 110 through the cold- The hot brine discharged from the refrigerated showcase 200 through the refrigerated closed circuit 180 and the refrigerated closed circuit 160 is introduced into the heat storage tank 110 through the heat storage tank 110 or is supplied to the freezer 120 and the remaining part of the refrigerant flows into the heat storage tank 110 and is then cooled and discharged to the refrigeration showcase 200 through the refrigeration closed circuit 160 and the refrigerated closed circuit 180 so as to be circulated continuously.

"Winter - Cold"

First, as shown in FIG. 7, the first three-way valve V1 and the second three-way valve V2 change the flow path so that the brine is supplied to the refrigerated closed circuit 180 through the heat storage tank 110. [

When the cold water circulation pump 170 installed in the cold side closed circuit 160 is operated, the low temperature brine in the thermal storage tank 110 is supplied to the cold side showcase 200 via the cold side closed circuit 160 and the closed circuit 180, So that cold air is generated in the refrigeration showcase 200. At this time, the low-temperature brine supplied thereto is changed to a high-temperature state while exchanging heat with the refrigerant or the cooling water of the refrigeration showcase 200. The high-temperature brine is again introduced into the heat storage tank 110 via the refrigerated closed circuit 180 and the cold- And is continuously circulated after changing to a low-temperature brine. In addition, since the cooling water circulation pump 133 of the heat exchanger 130 is not operated, the brine passes through the heat exchanger 130 as it is and is recovered to the heat storage tank 110 through the air-cooled closed circuit 160. The high temperature brine discharged from the refrigerated showcase 200 through the refrigerated closed circuit 180 and the refrigerated closed circuit 160 is introduced into the heat storage tank 110 through the heat storage tank 110 or is supplied to the freezer 120 and the remaining part of the refrigerant flows into the heat storage tank 110 and is then cooled and discharged to the refrigeration showcase 200 through the refrigeration closed circuit 160 and the refrigerated closed circuit 180 so as to be circulated continuously.

That is, the brine of the thermal storage tank 110 is connected to the heat storage tank 110, the air-cooling closed circuit 160, the cooling air pump 170, the refrigerated closed circuit 180, the refrigerating pump 190, the first three-way valve V1, The second three-way valve V2, the cooling circuit 180, the air-cooling closed circuit 160, and the heat storage tank 110 are continuously circulated.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood, however, that the invention is not to be limited to the specific forms thereof, which are to be considered as being limited to the specific embodiments, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. .

110: heat storage tank 120: freezer
130: heat exchanger 140: closed-
150: Whirlpool pump 160: Cooling closed circuit
170: Cooling pump 180: Refrigerated closed circuit
190: Refrigeration pump 200: Refrigerated showcase
210: first bypass line 220: refrigerator freezer
230: second bypass line V1, V2: first and second three-way valves

Claims (7)

A heat storage tank; A refrigerator having a cooling tower, a cooling pump and a cooling closed circuit; A heat exchanger; A shrink-cooled closed circuit; A condensing pump; Air cooling closed circuit; And an air cooling pump,
A refrigeration closed circuit which branches off from the air-cooling closed circuit to circulate the brine discharged from the heat storage tank and constitutes a closed circuit;
A refrigeration pump installed in the refrigerated closed circuit and circulating the brine;
A refrigeration showcase installed at a rear end of the refrigeration pump in the refrigeration closed circuit and performing refrigeration through a brine supplied from the refrigeration closed circuit;
A first bypass line branching from the refrigerated closed circuit to circulate the brine in the refrigerated closed circuit during the summer season;
A refrigerating chiller installed in the first bypass line to cool the brine;
A second bypass line for circulating the brine discharged from the refrigeration showcase to the refrigerating chiller;
A first three-way valve installed at the refrigerated closed circuit and the first bypass line connection portion to change the flow path of the brine; And
And a second three-way valve installed at a discharge side of the refrigerating chiller and at a second bypass line connecting part to change a flow path of the brine, wherein the second three-way valve is operable to drive the refrigerated showcase and the storage. delete The method according to claim 1,
In the ice storage heat system capable of driving the refrigeration showcase and the storage,
Wherein the brine of the heat storage tank is cooled by supplying the refrigerated brine to the refrigerated showcase to cool the brine of the storage tank during the winter season and cooling the brine by the refrigerating refrigerator during the summer season to supply the refrigerated showcase to the refrigerated showcase, An ice storage system capable of driving a storage pool. The method according to claim 1,
In the ice storage heat system capable of driving the refrigeration showcase and the storage,
The brine of the heat storage tank that is being cooled during the winter season is circulated and supplied to the refrigeration showcase to cool the brine of the storage tank at the time of the night during the winter season to cool the brine of the storage tank to cool the brine of the storage tank, And the refrigerator is supplied with the refrigerated showcase to perform refrigeration. The method according to claim 1,
The refrigeration pump includes:
Wherein the inverter pump is an inverter pump for controlling the flow rate of the brine according to a refrigerating load. The method according to claim 1,
The cooling air-
Wherein the inverter pump is an inverter pump for controlling the flow rate of the brine according to a cooling load. The method according to claim 1,
The refrigerator includes:
A third bypass line connected to the front and rear ends of the cooling tower on the cooling closed circuit to bypass the cooling water to prevent the cooling water temperature from falling below a predetermined temperature during the winter season;
A third three-way valve installed at the cooling closed circuit and the third bypass line for changing the flow path of the cooling water;
A temperature sensor installed at the third bypass line for sensing the temperature of the cooling water; And
And a heater installed at the third bypass line for controlling the temperature of the cooling water by heating the cooling water according to the temperature of the cooling water sensed by the temperature sensor.

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