KR20180106724A - Air conditioning system for refrigerating and freezing - Google Patents

Abstract

An air conditioning system for refrigeration and freezing according to the present invention includes: an outdoor unit including an outdoor compressor configured to compress a first refrigerant, a first outdoor heat exchanger configured to receive and condense the first refrigerant compressed by the outdoor compressor, a first outdoor expansion valve configured to expand the first refrigerant condensed by the first outdoor heat exchanger, and a second outdoor heat exchanger configured to evaporate the first refrigerant expanded by the first outdoor expansion valve; a show case device connected to the outdoor unit and configured to selectively receive the first refrigerant and circulate the first refrigerant to a cooling cycle, a rapid heating device connected to the outdoor unit and configured to selectively receive the first refrigerant and circulate the first refrigerant to the cooling cycle and circulate a second refrigerant heat-exchanged with the first refrigerant to the cooling cycle to heat water; a cooling tower device configured to circulate water such that the water passes through a second outdoor heat exchanger of the outdoor unit and recover the heat discarded from the second outdoor heat exchanger. The air conditioning system for refrigeration and freezing according to the present invention may recover energy discarded due to reduction of a load of the show case device when a market is not operated, and may store the discarded energy.

Description

[0001] Air conditioning systems for refrigeration and freezing [

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigeration and refrigeration air conditioning system, and more particularly, to a refrigeration and refrigeration air conditioning system capable of more effectively recovering waste heat.

Generally, an air conditioner is composed of a compressor, a condenser, an evaporator, and an inflator, and supplies air or warm air to a building or a room using an air conditioning cycle. Generally, the air conditioner operates the refrigerant with a refrigeration cycle or a heat pump cycle.

The air conditioner is structurally divided into a separable type in which the compressor is disposed outdoors and an integral type in which the compressor is integrally manufactured.

In the separate type, an indoor heat exchanger is installed in an indoor unit, an outdoor heat exchanger and a compressor are installed in an outdoor unit, and two devices separated from each other are connected to each other by a refrigerant pipe.

In the integrated type, the indoor heat exchanger, the outdoor heat exchanger and the compressor are installed in one case.

The integrated type air conditioner includes a window type air conditioner for directly mounting the apparatus on a window, and a duct type air conditioner for connecting the suction duct and the discharge duct to the outside of the room.

The separate type air conditioner includes a stand type air conditioner installed upright, and a wall-mounted air conditioner placed on a wall.

Particularly, in an air conditioner, there is a system which utilizes heat generated in the circulation process of a refrigerant and provides the user with cooling or heating of water.

Korean Patent Publication No. 10-2013-0081382 A

It is an object of the present invention to provide a refrigeration and refrigeration air conditioning system capable of more effectively recovering waste heat.

An object of the present invention is to provide a refrigeration and refrigeration air conditioning system in which heat discharged from a condenser to waste heat is recovered through a plate heat exchanger and applied to a hot water supply apparatus.

The object of the present invention is to provide a refrigeration and refrigeration air conditioning system capable of recovering heat discharged from waste heat to the outside to heat or cool it.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

In the refrigerating and freezing air conditioning system according to the present invention, the waste can be stored in at least one of the condenser or the cooling tower when the waste is not operated.

The refrigerating and freezing air conditioning system according to the present invention includes an outdoor compressor for compressing a first refrigerant, a first outdoor heat exchanger for receiving and condensing the first refrigerant compressed by the outdoor compressor, a condensed refrigerant in the first outdoor heat exchanger, 1. An outdoor unit comprising: a first outdoor expansion valve for expanding refrigerant; and a second outdoor heat exchanger for evaporating a first refrigerant expanded in the first outdoor expansion valve; A showcase device connected to the outdoor unit and selectively circulating the first refrigerant to circulate the refrigerant in a cooling cycle; A hot water supply unit connected to the outdoor unit, circulating the first refrigerant selectively in a cooling cycle, and circulating a second refrigerant that is heat-exchanged with the first refrigerant in a cooling cycle to heat water; A cooling tower device for circulating water through the first outdoor heat exchanger of the outdoor unit; And a condensing device for circulating water to pass through the second outdoor heat exchanger of the outdoor unit and recovering heat discharged from the second outdoor heat exchanger.

The water heater includes a hot water compressor for compressing the second refrigerant; A first hot water heat exchanger for condensing the compressed second refrigerant; A hot water expansion valve for expanding the second refrigerant condensed by the first hot water heat exchanger; And a second hot water heat exchanger for evaporating the second refrigerant expanded by the hot water expansion valve, wherein a first three-way valve is disposed between the outdoor compressor and the first hot water heat exchanger, The first refrigerant compressed in the outdoor compressor can be flowed to at least one of the first hot water heat exchanger and the first outdoor heat exchanger.

The water heater includes a hot water compressor for compressing the second refrigerant; A first hot water heat exchanger for condensing the compressed second refrigerant; A hot water expansion valve for expanding the second refrigerant condensed by the first hot water heat exchanger; And a second hot water heat exchanger for evaporating the second refrigerant expanded by the hot water expansion valve, wherein the outdoor unit is disposed between the outdoor compressor and the first hot water heat exchanger, and the first refrigerant discharged from the outdoor compressor A 1-1 electronic expansion valve for controlling the flow of the refrigerant; And a first 1-2 electron expansion valve disposed between the outdoor compressor and the first outdoor heat exchanger for controlling the flow of the first refrigerant discharged from the outdoor compressor.

Further comprising a second three-way valve disposed between the first outdoor heat exchanger and the showcase device for flowing the first refrigerant passed through the first outdoor heat exchanger to at least one of the second outdoor heat exchanger and the showcase device .

The hot water supply apparatus includes a hot water tank for storing water; A hot water piping connecting the hot water tank and the first hot water tank heat exchanger and circulating the water; And a water supply pump disposed in the hot water pipe for circulating the water.

The shaft refrigerator includes: a shaft cold storage for storing water; A shaft cooling / cooling pipe connecting the second outdoor heat exchanger and the axial cold storage unit and circulating water; And a condensing / cooling pump installed in the condensation cooling pipe for circulating the water.

The cooling tower apparatus includes a cooling tower in which water is stored; A cooling tower pipe connecting the first outdoor heat exchanger and the cooling tower and circulating water; And a cooling tower pump installed in the cooling tower pipe to circulate the water.

The refrigeration and freezing air conditioning system according to the present invention has one or more of the following effects.

First, the refrigerating and freezing air conditioning system according to the present invention is advantageous in that, when the mart is not operated, the waste energy due to the load reduction of the showcase device can be recovered and stored in the axial refrigerating device.

Second, the refrigeration and freezing air conditioning system according to the present invention is advantageous in that the hot water supply apparatus can be driven by using the condensation heat generated when the showcase apparatus is driven.

Third, the refrigeration and freezing air conditioning system according to the present invention adjusts the amount of opening of the 1-1 and 2- 1 electronic expansion valves, so that the amount of the first refrigerant supplied to the hot water supply device is provided to the first outdoor heat exchanger The amount of the first refrigerant can be controlled and the hot water supply device and the axial refrigerating device can be simultaneously driven.

1 is a configuration diagram of a refrigeration and refrigeration air conditioning system according to a first embodiment of the present invention.
FIG. 2 is a view showing a refrigerant flow in the operation of the mart shown in FIG.
FIG. 3 is a view showing the refrigerant flow in the absence of the unload operation and the hot water supply in FIG.
FIG. 4 is a view showing the refrigerant flow when the non-operated and hot water supply units are provided in FIG.
5 is a configuration diagram of a refrigeration and refrigeration air conditioning system according to a second embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of a refrigeration and refrigeration air conditioning system according to a first embodiment of the present invention.

The refrigeration and freezing air conditioning system according to the present embodiment includes an outdoor unit 100, a hot water supply unit 200, a cooling tower unit 300, a chiller unit 400, and a showcase unit 500.

The outdoor unit 100 includes an outdoor compressor 101, a first outdoor heat exchanger 110, a second outdoor heat exchanger 120, a first three sides 130, a second three sides 140, A valve 150, and a first outdoor expansion valve 160.

The outdoor compressor (101) compresses the first refrigerant, and the compressed first refrigerant flows to the first three sides (130). In this embodiment, R143a is used for the first refrigerant.

The first three sides 130 can selectively flow the first refrigerant compressed in the outdoor compressor 101 to either the first outdoor heat exchanger 110 or the hot water supply apparatus 200. To this end, the first three sides 130 are connected to the outdoor compressor 101, the first outdoor heat exchanger 110, and the water heater 200 through a refrigerant pipe.

The second three sides 130 are supplied with the first refrigerant that has passed through the first outdoor heat exchanger 110 and can be selectively flowed into either the second outdoor heat exchanger 120 or the showcase apparatus 500 have. To this end, the second three sides 130 are connected to the first outdoor heat exchanger 110, the second outdoor heat exchanger 120, and the showcase device 500 through a refrigerant pipe.

The first outdoor heat exchanger 110 may be operated as a condenser for condensing the first refrigerant and the second outdoor heat exchanger 120 may be operated as an evaporator for evaporating the first refrigerant.

The second outdoor expansion valve 150 is installed in a pipe connected to the outdoor compressor 101 in the showcase device 500 and the first outdoor expansion valve 160 is installed in the second three- (120).

The piping of the outdoor unit 100 may be provided with check valves 103 and 104 for limiting the flow direction of the refrigerant.

The hot water supply apparatus 200 includes a hot water supply compressor 201, a first hot water heat exchanger 210, a second hot water heat exchanger 220, a hot water expansion valve 230, a hot water tank 240, .

The water heater 200 circulates the second refrigerant. In this embodiment, R143a is used for the second refrigerant. The second refrigerant may be a refrigerant different from the first refrigerant. For example, R134a or R410a may be used as the second refrigerant.

Since the hot water supply device 200 is for supplying hot water to a user, it is preferable to use a refrigerant that emits a high temperature during condensation.

The second refrigerant compressed in the hot water supply compressor 201 is condensed in the first hot water heat exchanger 210 and expanded in the hot water expansion valve 230 and then evaporated in the second hot water heat exchanger 220 .

And the first refrigerant and the second refrigerant are heat-exchanged in the second hot water tank heat exchanger (220). The second hot water storage heat exchanger 220 operates not only as the condenser of the outdoor unit 100 but also as the evaporator of the hot water supply unit 200. Therefore, the second refrigerant can be evaporated by the heat of condensation of the first refrigerant.

Hot water pipes 241 and 242 for connecting the hot water tank 240 and the first hot water heat exchanger 210 are disposed and the hot water pump 250 is disposed in any one of the hot water pipes 241 and 242 do. The hot water supply pump 250 circulates the water in the hot water tank 240 and the first hot water tank heat exchanger 210 heats the circulated water by heat exchange.

The cooling tower unit 300 includes a cooling tower 340 for storing water, cooling tower pipes 341 and 342 for connecting the first outdoor heat exchanger 110 and the cooling tower 340 and circulating water, And a cooling tower pump 350 installed in the cooling tower pipes 341 and 342 to circulate the water.

The water circulated through the cooling tower unit 300 is heat-exchanged with the first outdoor heat exchanger 110 operated as a condenser and can cool the first outdoor heat exchanger 110.

The water of the cooling tower 340 may be heat-exchanged with the first outdoor heat exchanger 110.

The condenser 400 includes a condenser 440 for storing water and condenser tubes 441 and 442 for connecting the second outdoor heat exchanger 120 and the condenser cooler 440 to circulate water. And a condenser / condenser pump 450 installed in the condenser tubes 441 and 442 for circulating water.

The water circulated through the condenser unit 400 is heat-exchanged with the second outdoor heat exchanger 120 operated by the evaporator, and the circulated water can be cooled by the second outdoor heat exchanger 120. The cooled water is stored in the cold storage tank 440.

The showcase apparatus 500 is used for providing cool air at a mart or a convenience store. The cool air provided by the showcase device 500 is used to maintain the freshness of the fresh food or to keep the display article cool.

The showcase apparatus 500 includes a showcase heat exchanger 510, a showcase expansion valve 560 and a blower fan 520. The showcase device 500 may provide cool air.

The showcase heat exchanger 510 is operated as an evaporator.

The showcase heat exchanger 510 is connected to the second three-way valve 140 to receive the first refrigerant, and the heat-exchanged first refrigerant is supplied to the outdoor compressor 101.

A high pressure refrigerant pipe 541 connecting the second three-way valve 140 and the showcase heat exchanger 510 and a low pressure refrigerant pipe 542 connecting the showcase heat exchanger 510 and the outdoor compressor 101, .

The showcase expansion valve 560 is disposed in the high-pressure refrigerant pipe 541. The low-pressure refrigerant pipe (542) is connected to the second outdoor expansion valve (150).

Hereinafter, a control method of the refrigeration and refrigeration air conditioning system according to the present embodiment will be described in detail with reference to the drawings.

Fig. 2 is a configuration diagram showing the flow of refrigerant in the operation of the showcase shown in Fig. 1, Fig. 3 is a diagram showing the flow of refrigerant when there is no hot water supply load shown in Fig. 1, And the refrigerant flow when the illustrated hot water supply load is present.

The case of a general operation (operation time of a mart or a convenience store) will be described with reference to Fig.

The first refrigerant discharged from the outdoor compressor 101 of the outdoor unit 100 flows from the first three-way valve 130 to the hot water supply unit 200 side during the normal operation and the condensed first refrigerant flows through the second three-way valve 140 To the showcase device 500 side.

The first three-way valve 130 blocks the first refrigerant from flowing to the first outdoor heat exchanger 110 and causes the first refrigerant to flow to the second hot water heat exchanger 220 of the water heater 200.

The second three-way valve 140 blocks the condensed refrigerant from flowing into the second outdoor heat exchanger 120 and flows the first refrigerant into the showcase heat exchanger 510 of the showcase apparatus 500 .

Therefore, when the first refrigerant is circulated, the first refrigerant is condensed in the second hot water heat exchanger 220 of the hot water supply apparatus 200, and the first refrigerant is condensed in the showcase heat exchanger 510 of the showcase apparatus 500 Evaporated.

Meanwhile, the hot water supply apparatus 200 circulates the second refrigerant to condense the second refrigerant in the first hot water tank heat exchanger 210 and evaporate the second refrigerant in the second hot water tank heat exchanger 220.

The second hot water heat exchanger 220 exchanges heat between the first refrigerant and the second refrigerant as a double heat exchanger. The second hot water heat exchanger 220 operates as a condenser for the first refrigerant and as an evaporator for the second refrigerant.

The first hot water heat exchanger 210 is a double heat exchanger, and exchanges heat between the second refrigerant and water.

The water in the hot water tank 240 is heated while passing through the first hot water storage heat exchanger 210, and the heated water is stored in the hot water tank 240. When the user uses hot water, the stored high temperature water is discharged and new water is supplied. The hot water supply apparatus 200 maintains the temperature of the hot water tank 240 at an appropriate hot water.

Meanwhile, the showcase apparatus 500 expands the condensed first refrigerant in the showcase expansion valve 560, and the expanded first refrigerant evaporates in the showcase heat exchanger 510. The air is cooled by the heat of evaporation of the first refrigerant, and the blowing fan 520 discharges the cool air into a showcase (not shown). The discharged refrigerant keeps the freshness by cooling the food or commodity displayed on the showcase.

The refrigerant evaporated in the showcase heat exchanger (510) is recovered by the outdoor compressor (101) and then compressed and discharged again.

The second outdoor expansion valve 150 is kept in the fully opened state so that the first refrigerant evaporated in the showcase apparatus 500 flows to the outdoor compressor 101 during the normal operation as in the present embodiment.

During the normal operation, the cooling tower device 300 and the cold storage tank 400 are not operated.

Next, referring to FIG. 3, the operation process when there is no hot water supply load at the time of non-operation of the mats will be described.

The showcase 500 should be operated to a minimum even after the closure of the mats. However, there may be no hot water supply load of the hot water supply apparatus 200 after the closing of the mall.

In this case, when the hot water supply apparatus 200 is operated in a state in which there is no hot water supply load, energy is wasted. To prevent this, the water in the condenser 400 is cooled to recover the waste heat.

For this, the first three-way valve 130 flows the first refrigerant to the first outdoor heat exchanger 110 to operate the first outdoor heat exchanger 110 as a condenser.

The first outdoor heat exchanger 110 is a double heat exchanger and is capable of exchanging heat between the first refrigerant and the water of the cooling tower device 300. The cooling tower device 300 circulates water to condense the first refrigerant.

The refrigerant condensed in the first outdoor heat exchanger 110 may be provided to either the second outdoor heat exchanger 120 or the showcase heat exchanger 510 by the second three-way valve 140.

When the first refrigerant is supplied to the second outdoor heat exchanger 120, the water in the condenser 400 can be cooled. When the first refrigerant is provided to the showcase heat exchanger 510, cool air can be provided to the showcase.

When the first refrigerant is supplied to the second outdoor heat exchanger 120, the second outdoor expansion valve 150 is closed to block the first refrigerant from flowing toward the showcase apparatus 500 side.

Next, referring to FIG. 4, a description will be given of an operation process when there is a hot-water supply load or a show-case load in the non-operated state.

In operation of the outdoor unit 100, the operation of the showcase apparatus 500 is minimized. A hot water supply load may be generated by the user even if the mart is not operated.

In this case, the controller may control the first three-way valve 130 to provide the first refrigerant to at least one of the second hot water heat exchanger 220 and the first outdoor heat exchanger 110.

For example, the water in the hot water tank 240 can be heated by providing the first coolant only to the second hot water storage heat exchanger 220.

For example, only the first outdoor heat exchanger 110 may be provided with the first refrigerant to cool and store the water in the condenser 400.

For example, by providing a first refrigerant to both the second hot water storage heat exchanger 220 and the first outdoor heat exchanger 110 to heat water in the hot water supply device 240 and to cool the water in the hot water storage device 400 . When the first refrigerant is supplied to both the second hot water heat exchanger 220 and the first outdoor heat exchanger 110, the first three-way valve 130 is connected to the second hot water heat exchanger 220, All of the pipes on the outdoor heat exchanger 110 side are opened.

For example, the control unit may alternately provide the first refrigerant to the second hot water tank heat exchanger 220 and the first outdoor heat exchanger 110.

The control unit can control the first three-way valve 130 in various ways according to the size of the hot water supply load.

The remaining energy of the outdoor unit 100 can be stored in the hot-water storage unit 400 even if there is a hot water supply load in the water heater 200.

The first refrigerant is condensed via at least one of the second hot water heat exchanger 220 and the first outdoor heat exchanger 110 and the condensed first refrigerant is condensed in the second outdoor heat exchanger 120 to the condenser 400 can be heat-exchanged with the circulating water and evaporated.

Thus, the waste heat of the outdoor unit 100 is recovered to the condenser 400 through the second outdoor heat exchanger 120.

On the other hand, when there is a load on the showcase apparatus 500, the condensed first refrigerant is evaporated in the showcase heat exchanger 510 and can provide cool air to the showcase.

5 is a configuration diagram of a refrigeration and refrigeration air conditioning system according to a second embodiment of the present invention.

Instead of the first three-way valve 130 of the first embodiment, the first 1-1 electronic expansion valve 131 and the 1-2 first electronic expansion valve 132 are arranged in this embodiment, and in place of the second three-way valve 140, The 2-1 electronic expansion valve 141 and the 2-2 electronic expansion valve 142 are disposed.

The first 1-1 and second 1-2 electronic expansion valves 131 and 132 disposed in place of the first three-way valve 130 can control the flow rate of the first refrigerant more precisely.

The second-1 electronic expansion valve 141 and the second-2 electronic expansion valve 142 disposed in place of the second three-way valve 140 can also control the flow rate of the first refrigerant more precisely.

4, the first 1-1 electronic expansion valve 131, the 1-2 first electronic expansion valve 132, the 2-1 electronic expansion valve 141, and the 2-2 electronic expansion valve 142, It works more effectively when there is a hot-water addition in the non-operation of the mart.

The first 1-1 electronic expansion valve 131 can more precisely control and provide the flow rate of the first refrigerant supplied to the second hot water storage heat exchanger 220. [

That is, the first refrigerant can be provided through the 1-1 expansion valve 131 by the amount of the required hot water supply load. Also, the first refrigerant exceeding the hot water load can be supplied to the first outdoor heat exchanger (110) through the first-second electronic expansion valve (132) to store energy remaining in the second cooling unit (400).

The second-1 electronic expansion valve 141 and the second-2 electronic expansion valve 142 are also controlled in the same manner.

The first refrigerant condensed through the second-1 electronic expansion valve 141 and the second -2 electronic expansion valve 142 can be supplied only to the showcase apparatus 500 as needed.

In the absence of the load of the showcase device 500, the energy remaining in the condensing first refrigerant flowing to the second outdoor heat exchanger 120 can be stored in the condenser 400.

If there is an addition of the showcase device 500, the first refrigerant of the required load is supplied to the showcase heat exchanger 510 via the second 2-2 electronic expansion valve 142, and the remaining first refrigerant is supplied to the 2-1 electron To the second outdoor heat exchanger (120) through the expansion valve (141).

On the other hand, unlike the present embodiment, it is also possible to provide the first refrigerant, which is always condensed at a predetermined ratio, to the second-1 electronic expansion valve 141 and the second -2 electronic expansion valve 142.

The rest of the configuration is the same as that of the first embodiment, and a detailed description thereof will be omitted.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is to be understood that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

100: outdoor unit 200: hot water supply unit
300: Cooling tower device 400: Coal cooling device
500: Showcase device

Claims (7)

An outdoor compressor for compressing the first refrigerant, a first outdoor heat exchanger for receiving and condensing the first refrigerant compressed by the outdoor compressor, a first outdoor expansion valve for expanding the first refrigerant condensed in the first outdoor heat exchanger, An outdoor unit including a second outdoor heat exchanger for evaporating the first refrigerant expanded in the first outdoor expansion valve;
A showcase device connected to the outdoor unit and selectively circulating the first refrigerant to circulate the refrigerant in a cooling cycle;
A hot water supply unit connected to the outdoor unit, circulating the first refrigerant selectively in a cooling cycle, and circulating a second refrigerant that is heat-exchanged with the first refrigerant in a cooling cycle to heat water;
A cooling tower device for circulating water through the first outdoor heat exchanger of the outdoor unit;
And a condensing device for circulating water to pass through the second outdoor heat exchanger of the outdoor unit and recovering heat discharged from the second outdoor heat exchanger. The method according to claim 1,
In the hot water supply device,
A hot water compressor for compressing the second refrigerant;
A first hot water heat exchanger for condensing the compressed second refrigerant;
A hot water expansion valve for expanding the second refrigerant condensed by the first hot water heat exchanger;
And a second hot water heat exchanger for evaporating the second refrigerant expanded by the hot water expansion valve,
A first three-way valve is disposed between the outdoor compressor and the first hot water heat exchanger,
Wherein the first three-way valve flows the first refrigerant compressed in the outdoor compressor to at least one of the first hot water heat exchanger and the first outdoor heat exchanger. The method according to claim 1,
In the hot water supply device,
A hot water compressor for compressing the second refrigerant;
A first hot water heat exchanger for condensing the compressed second refrigerant;
A hot water expansion valve for expanding the second refrigerant condensed by the first hot water heat exchanger;
And a second hot water heat exchanger for evaporating the second refrigerant expanded by the hot water expansion valve,
The outdoor unit includes:
A first 1-1 electronic expansion valve disposed between the outdoor compressor and the first hot water heat exchanger for controlling the flow of the first refrigerant discharged from the outdoor compressor;
And a first 1-2 electronic expansion valve disposed between the outdoor compressor and the first outdoor heat exchanger for controlling the flow of the first refrigerant discharged from the outdoor compressor. The method according to claim 2 or 3,
Further comprising a second three-way valve disposed between the first outdoor heat exchanger and the showcase device, for flowing the first refrigerant passed through the first outdoor heat exchanger to at least one of the second outdoor heat exchanger or the showcase device Refrigeration and refrigeration system. The method according to claim 2 or 3,
In the hot water supply device,
Hot water tank to store water;
A hot water piping connecting the hot water tank and the first hot water tank heat exchanger and circulating the water;
And a water-heating pump disposed in the hot-water pipe for circulating the water. The method according to claim 1,
The shaft refrigerator has:
A cold storage tank in which water is stored; A shaft cooling / cooling pipe connecting the second outdoor heat exchanger and the axial cold storage unit and circulating water; And a condenser / condenser pump installed in the condenser refrigerant pipe for circulating water. The method according to claim 1,
In the cooling tower device,
A cooling tower in which water is stored;
A cooling tower pipe connecting the first outdoor heat exchanger and the cooling tower and circulating water;
And a cooling tower pump installed in the cooling tower pipe for circulating water.

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