KR100903765B1 - Central cooling and heating supply system using solar heat and shrinkage heat pump - Google Patents

Abstract

It provides central cooling and heating supply system using solar heat and shrinkage heat heat pump that can provide hot water even in summer or season, which is used as cooling system, and realize low cost and high efficiency cooling and heating system. The cooling and heating supply system includes components that constitute a refrigeration cycle, such as a compressor, a first heat exchanger, an expansion valve, and a second heat exchanger, and the flow direction of the refrigerant is changed in a refrigeration cycle implemented by the components. In the central cooling and heating system using a heat pump having a four-way valve to enable the use of cooling or switching to a heating device, connected to the first heat exchanger, provides cooling energy from the first heat exchanger during the cooling operation A storage tank for receiving and storing; A hot water supply device provided on a conduit connecting the compressor and the second heat exchanger during a cooling operation; A heat storage tank for supplying cold water to the hot water supply device and receiving hot water from the hot water supply device; A heat storage tank connected to a heating pipe which receives hot water from the heat storage tank, and on one side thereof, forms a circulation path through the heating target space to implement heating for the heating target space; A heat medium heat storage tank passing through the third heat exchanger extending from the heating heat storage tank and accommodating a heat medium in a sealed inner space; A heat collecting plate installed at an advantageous position for collecting solar light and collecting the solar light and converting it into thermal energy; And a heat medium circulation pipe connecting the heat medium heat storage tank and the heat collecting plate, and forming a path through which the heat medium can be moved so that heat energy of the heat collecting plate can be transferred to the heat medium heat storage tank through the heat medium. .

Description

Central air conditioning and heating system using the solar heat and contractile heat heat pump}

The present invention relates to a central cooling and heating supply system using a solar heat and shrinkage heat pump, and more particularly, a heat pump cooling and heating system can produce and provide hot water in a winter as well as a summer used as a heater. The present invention relates to a central cooling and heating supply system using a solar heat and shrinkage heat heat pump capable of implementing a low cost and high efficiency cooling and heating system.

In general, heat pump type heating and cooling systems provide heating and hot water using the heat released from the high pressure side (condenser) during the heating season through the selective bidirectional flow of refrigerant, and the low pressure side (evaporator) during the cooling season. The device is implemented to provide cold air using ambient heat absorption.

The heat pump heating and cooling system is used in various forms depending on the application environment, but basically includes components that make up a refrigeration cycle, such as a compressor, a condenser, an expansion valve, and an evaporator, and are implemented to include such components. In the refrigeration cycle, the four-way valve is basically adopted to selectively switch the flow direction of the refrigerant to reverse / reverse to enable cooling or heating.

1 is a view schematically showing the overall configuration of a conventional general heat pump type air-conditioning system. The conventional general heat pump type air-conditioning system includes a compressor (1), a condenser (outdoor unit; 2), an expansion valve (3), and an evaporator ( In addition to the basic components for implementing a cooling cycle, such as an indoor unit 4, it is installed between the expansion valve 3 and the evaporator 4 and between the compressor 1 and the condenser 2 to implement a cooling cycle. Four-way valves and back-flush valves 5a and 5b for switching ports and for switching the circulation direction of the refrigerant are included.

The conventional general heat pump type air-conditioning system having the above-described configuration is capable of normal cooling operation through a series of cooling cycles such as compression, condensation, expansion, and evaporation, and is suitable for the operation of the four-way valve and the counter valve (5a. 5b). Heating operation is also possible through a heat pump process such as evaporation-expansion-condensation-compression due to the reverse circulation of the refrigerant.

However, since the conventional hot pump type heating and cooling system having the configuration and operation principle as described above does not have a separate hot water supply means, a boiler must be operated separately in order to receive hot water in a summer or a season used as a cooler. There is a problem that heat dissipation is discarded as it is through the condenser even though the heat pump type heating and cooling system is utilized as a cooling device, although the amount of heat absorbed through the evaporator can be sufficiently reused.

The technical problem to be achieved by the present invention, it is possible to provide hot water in the summer or summer season used as a cooling system, solar heat and water that can be used more efficiently by reusing the waste heat discarded to the outside through the condenser during cooling operation To provide a central cooling and heating supply system using a heat storage heat pump.

In addition, another technical problem of the present invention, by utilizing not only the thermal energy contained in the refrigerant at a designated position in the generation of hot water supply or heating, it is possible to produce hot water and implement heating without a separate heat source, such as an auxiliary heater as a whole It is to provide a central cooling and heating supply system using solar heat and shrinkage heat heat pump that can realize a low cost and high efficiency cooling or heating system.

As a means for solving the above technical problem, the present invention includes a component constituting a refrigeration cycle, such as a compressor, a first heat exchanger, an expansion valve, and a second heat exchanger, the refrigeration cycle implemented by the components In the central cooling and heating system using a heat pump having a four-way valve to switch the flow direction of the refrigerant to the cooling or heating apparatus, connected to the first heat exchanger, when the cooling operation the first A storage tank for receiving and storing cooling energy from the heat exchanger; A hot water supply device provided on a conduit connecting the compressor and the second heat exchanger during a cooling operation; A heat storage tank for supplying cold water to the hot water supply device and receiving hot water from the hot water supply device; A heat storage tank connected to a heating pipe which receives hot water from the heat storage tank, and on one side thereof, forms a circulation path via the heating target space for heating the heating target space; A heat medium heat storage tank passing through the third heat exchanger extending from the heating heat storage tank and accommodating a heat medium in a sealed inner space; A heat collecting plate installed at an advantageous position for collecting solar light and collecting the sunlight to convert it into thermal energy; And a heat medium circulation pipe which connects the heat medium heat storage tank and the heat collecting plate, and forms a path through which the heat medium can be moved so that the heat energy of the heat collecting plate can be transferred to the heat medium heat storage tank through the heat medium. Provide a central cold and heating supply system using a pump.

Here, the cooling pipe is connected to the storage tank for cooling the cooling target space.

The hot water supply device includes: a heat exchange tank having an inner space in which water supplied from the heat storage tank can be stored; A heat dissipation pipe corresponding to a pipe line passing through the heat exchange tank among the pipe lines connecting the compressor and the second heat exchanger, wherein the temperature of water accommodated in the heat exchange tank while the gaseous refrigerant having a high temperature and high pressure passes through the heat dissipation pipe during cooling operation It is desirable to be able to raise.

In addition, a pump is installed on the third heat exchanger conduit connecting the heating heat storage tank and the heat storage heat storage tank, and the pump senses the temperature of the fluid flowing in the conduit so that the temperature can be operated when the set temperature is met. It is desirable to adopt one with a sensing function.

According to a preferred embodiment of the present invention, a hot water pipe forming a path for circulating the water inside the heating heat storage tank, so that the water provided outside the heating heat storage tank can be converted into hot water via the heating heat storage tank; It may further include.

According to the present invention having the above configuration, during the cooling or heating operation, the hot water is generated and stored using the thermal energy contained in the refrigerant that maintains a high temperature while undergoing an evaporation process, and is used for heating or hot water generation. do. Accordingly, in the cooling and heating supply system according to the present invention, hot water supply and hot water for heating can be provided, and hot water for heating and hot water for heating can also be provided in winter heating operation utilized as a heating device. Hot water can be produced regardless of the season.

In addition, the present invention, since the active use of the heat energy contained in the refrigerant at the designated position (after the evaporation process) during the cooling or heating operation as described above, the amount of waste heat discarded to the outside during the condensation process is significantly reduced, thus the refrigerant in the condensation process The heat exchange efficiency of the is higher, there is another effect that can further improve the cooling or heating performance of the device.

In addition, it utilizes solar heat as well as the heat energy contained in the refrigerant at a designated location to create hot water supply or heating, so that hot water production and heating can be implemented without a separate heat source such as an auxiliary heater as a whole. It is possible to implement a system, and there are also environmentally friendly advantages by utilizing natural energy.

In addition, there is another effect that heating and hot water generation using solar heat is possible even when the device implementing the refrigeration or heating cycle does not operate in the cooling and heating supply system.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a schematic diagram schematically showing the overall configuration of the central cooling, heating supply system using a solar heat and shrinkage heat pump according to a preferred embodiment of the present invention.

Referring to FIG. 2, the central cooling and heating system using the heat pump may include a compressor, a first heat exchanger 20, an expansion valve 30, and a second heat exchanger 40. Components, the four-way valve 50a (50b), the cold storage tank 60, the hot water supply device 70, the heat storage tank 80, the heating heat storage tank 90, the heat storage heat storage tank 100 and the heat collecting plate ( It is configured to include 140), the cooling in the summer as well as the summer used as a cooling device is possible to generate hot water, in the generation of hot water or winter heating energy contained in the refrigerant at a designated location Of course, by using solar heat as a heat source, it is essential to realize a low-cost, high-efficiency cooling and heating system. The configuration of the present invention will be described in more detail.

The four-way valves 50a and 50b are installed on the conduit connecting the first heat exchanger 20 and the second heat exchanger 40 and the conduit connecting the compressor 10 and the second heat exchanger 40. In addition, the cooling and heating system performs a role of switching the flow path of the refrigerant in the refrigerating cycle implemented by the basic components to perform the cooling operation or the heating operation according to the user's selection.

The hot water supply device 70 is installed on the conduit connecting the compressor 10 and the second heat exchanger 40, and the high temperature and high pressure working fluid passed through the first heat exchanger 20 and the compressor 10 during the cooling operation. (Refrigerant) is used to raise the temperature of the water contained therein to generate hot water. In the present invention, the hot water supply device 70 is a heat exchange tank 72 having an internal space in which the water supplied from the heat storage tank 80 can be stored, the compressor 10 and the second heat exchanger ( A heat dissipation pipe 74 corresponding to a pipe line passing through the heat exchange tank 72 among the pipe lines connecting the heat exchange tank 72 is provided. The temperature of the water contained in the tank 72 is raised.

One side of the heat storage tank 80 is connected to the hot water supply device 70 to supply cold water to the hot water supply device 70 and receive and receive hot water from the hot water supply device 70, and the other side of the heat storage tank is heated. It is connected to the (90) provides the hot water generated through the hot water supply device 70 to the heating heat storage tank 90, and recovers the water exhausted heat energy through the heating heat storage tank (90). That is, the hot water supply device 70, the heat storage tank 80, the heating heat storage tank 90 forms one continuous circulation cycle through which water can be circulated through the pipes connecting them, and thus the hot water supply device 70 The hot water generated while passing through the heat storage tank 80 is transferred to the heating heat storage tank 90 through the heat storage tank 80 to exhaust energy and circulates continuously through the hot water supply device 70 via the heat storage tank 80.

One side of the heating heat storage tank 90 is connected to a heating tube 92 forming one circulation path via the heating target space so as to implement heating for the heating target space, and the heating heat storage tank 90 The water provided into the heating heat storage tank 90 through the hot water pipe inlet 94a is connected to the inside of the heating heat storage tank 90 via a hot water pipe 94 forming a path for circulating water. It can be converted into hot water via the hot water pipe 94 of and provided to the outside through the hot water pipe outlet 94b.

In the heat storage heat storage tank 100, a third heat exchanger 110 extending from the heating heat storage tank 90 passes through the inside thereof, and the heat medium is accommodated in the sealed inner space. In addition, a pump 120 is installed on a conduit extending from the third heat exchanger 110 connecting the heating heat storage tank 90 and the heat storage heat storage tank 100, and the heat medium provides heat energy from the heat collecting plate 140. It receives and circulates and indirectly heats the said 3rd heat exchanger 110 corresponding to a to-be-heated body. Therefore, when the water stored in the heating heat storage tank 90 is forcedly circulated by the driving of the pump 120, some of the water stored in the heating heat storage tank 90 receives heat from the heat medium while passing through the third heat exchanger 110. It is received and converted into hot water.

Here, as the heat medium, a material having a high boiling point and low vapor pressure, low thermal stability and corrosiveness to the device material, excellent fluidity, high specific heat and evaporation heat, and nonflammability, the pump 120 may be adopted. It is preferable to adopt a temperature sensing function so as to sense the temperature of the fluid flowing in the pipeline and to operate only when it meets the set temperature, so that it can be selectively driven according to the temperature of the pipeline.

The heat collecting plate 140 that provides heat energy to the heat medium is installed at a position favorable for solar collection, and collects the sunlight and converts it into thermal energy. At this time, the heat medium heat storage tank 100 and the heat collecting plate 140, the heat energy of the heat collecting plate 140 is transferred to the heat medium heat storage tank 100 through the heat medium and the heat medium exhausted heat energy is returned to the heat collecting plate 140 side. In order to be moved, the heat collecting plate 140 and the heat medium heat storage tank 100 are connected to each other through a heat medium circulation pipe 130 forming one continuous cycle path through which the heat medium can be moved.

On the other hand, the cold storage tank 60 extends from one side of the cold storage tank 60 and is connected to the first heat exchanger 20 through a heat exchange pipe line 22 passing through the first heat exchanger 20, and is sealed. In the internal space, a working fluid refrigerant or water for cooling is housed, and a cooling conduit 62 for cooling the cooling target space is connected to the other side. Accordingly, when the system according to the present invention is operated in a cooling operation, the cooling energy is stored and received from the first heat exchanger 20, and the stored cooling energy is transferred to the cooling target space through the cooling pipe 62 to realize cooling. Done.

Reference numeral 55 denotes a conventional receiver which has a filter means therein so as to remove the foreign matter contained in the low temperature and high pressure refrigerant through the condenser and remove foreign substances.

Next, the cooling and heating operation performed by the cooling and heating system according to the present invention having the above-described configuration will be described in connection with the flow state of the refrigerant according to the operation of the refrigerating or heating cycle according to the present invention.

"은 냉매의 흐름을 나타내며 화살표"

"은 물의 흐름을 나타낸다.3 is an operational state diagram of the present invention showing the flow of refrigerant in the cooling operation and the circulation of water contained in the heat storage tank, the arrow "

"Arrow represents the flow of refrigerant"

Represents the flow of water.

Referring to FIG. 3, in the cooling operation through the system according to the present invention, the refrigerant, such as a general refrigeration cycle, is sequentially flowed through the compressor-second heat exchanger-expansion valve-first heat exchanger according to the four-way valve switching. Implemented by flow Specifically, during the cooling operation, the low-temperature low-pressure liquid refrigerant passing through the expansion valve 30 absorbs the surrounding heat while passing through the first heat exchanger 20, and flows into the compressor 10 in a high-temperature low-pressure gas state. In (10), the introduced high temperature low pressure refrigerant is compressed and discharged in a high temperature high pressure superheated steam state.

The refrigerant having a high temperature and high pressure superheated steam having undergone the above process passes through the heat dissipation pipe 74 passing through the inside of the hot water supply device 70 between the compressor 10 and the second heat exchanger 40, and then the heat exchange tank 72. Heat exchanged with cold water circulating), and thus water supplied from the heat storage tank 80 to the heat exchange tank 72 of the hot water supply device 70 receives heat energy from the heat radiating pipe 74 to the hot water. It is switched to and returned to the heat storage tank 80 again. In other words, the refrigerant in the superheated steam flowing through the heat radiating pipe 74 serves as a heat source for raising the temperature of the cold water circulating through the heat exchange tank 72.

Since the first heat exchanger 20 serves as an evaporator in the cooling operation process as described above, the heat storage tank 60 is connected to the first heat exchanger 20 through the heat exchange pipe line 22 passing through the first heat exchanger 20. Cooling energy (cold water) is received and stored, and the stored cooling energy is transferred to the corresponding cooling target space through the cooling conduit 62 to realize cooling. That is, the heat exchange conduit 22 passing through the first heat exchanger 20 is converted into low temperature water by absorbing ambient heat by evaporation of the first heat exchanger 20 while water flows, for example, a storage tank ( Returning to (60), the cooling is achieved by being delivered to the cooling target space through the cooling pipe (62).

On the other hand, hot water whose temperature is increased while passing through the hot water supply device 70 in the cooling operation process as described above is transferred from the heat storage tank 80 to the heating heat storage tank 90 and provided as a heat source for producing heating or hot water supply. do. That is, when the hot water pipe 94, which forms a path for circulating water, passes through the heating heat storage tank 90, when a hot water supply command of the controller (not shown) is applied, the hot water pipe inlet 94a. The water provided into the heating heat storage tank 90 through the water is converted into hot water by receiving thermal energy from the hot water contained in the heating heat storage tank 90 while passing through the hot water pipe 94 inside the heating heat storage tank 90. It is provided as hot water for hot water supply outside through the outlet 94b.

At this time, in the heat storage heat storage tank 100, a third heat exchanger 110 extending from the heating heat storage tank 90 passes through the inside thereof, and a heat medium is accommodated in the inner space, and the heat medium is the heat collecting plate 140. By transferring the high temperature heat energy collected through the heat transfer to the hot water of the heating heat storage tank 90 flowing through the third heat exchanger 110, the hot water received in the heating heat storage tank 90 has a higher temperature, and eventually the The water provided into the heating heat storage tank through the hot water pipe inlet 94a may receive more heat energy while passing through the hot water pipe 94 inside the heating heat storage tank 90 and be provided as hot water for hot water to the outside. .

Figure 4 is an operating state diagram showing the flow of refrigerant and water in the case where the heating and cooling system according to the present invention is utilized as a heating device.

Referring to FIG. 4, in the case of the heating operation, unlike the above-described cooling operation according to the switching of the four-way valves 50a and 50b, the refrigerant is reversely circulated along the arrow direction shown, and thus, the first heat exchanger 20. And the function and role of the second heat exchanger 40 are switched. That is, in the heating operation, the first heat exchanger 20 serves as a condenser and the second heat exchanger 40 serves as an evaporator. In this case, the refrigerant is a compressor 10-a second heat exchanger 40-an expansion. Via the valve 30-the 1st heat exchanger 20 sequentially, the flow direction is the same as the arrow direction of a figure.

In the above-described heating operation, the heat storage tank 60 is switched to the heat storage tank function because the first heat exchanger 20 serves as a condenser, and the cooling pipe 92 connected to the heat storage tank 60 is heated. It becomes a pipe and provides heating heat via the heating target space. In addition, since the hot water supply device 70 is disposed between the second heat exchanger 40 and the compressor 10 serving as the evaporator according to the switching of the four-way valves 50a and 50b during the heating operation, the hot water supply device 70 The refrigerant passing through the heat dissipation pipe 74 of) is in a gaseous state of high temperature and low pressure, as in the cooling operation described above, and therefore, the same as cooling operation, to the water circulating in the hot water supply device 70 from the heat storage tank 80. Thermal energy may be transferred to generate hot water.

On the other hand, even in the heating operation process as described above, the hot water whose temperature is increased while passing through the hot water supply device 70 is transferred from the heat storage tank 80 to the heating heat storage tank 90 is provided as a heat source for producing hot water supply hot water. do. That is, the heating heat storage tank 90 passes through the hot water pipe 94 forming a path for circulating water, and when the hot water supply command of the controller is applied, the heating heat storage tank through the hot water pipe inlet 94a. The water provided inside is converted into hot water by receiving thermal energy from the hot water contained in the heating heat storage tank 90 while passing through the hot water pipe 94 inside the heating heat storage tank 90, and converts the hot water pipe outlet 94b into the hot water pipe 94. It is provided as hot water for hot water through the outside.

In addition, the heating heat storage tank 90 is connected to a heating tube 92 via a heating target space, so that the hot water received in the heating heat storage tank 90 not only generates hot water for hot water as described above, but also the heating pipe 92 It is supplied to the heating target space through) and used as a heat source for realizing heating. That is, the heating of the heating target space by using the heating energy of the heat storage tank 60 and the hot water accommodated in the heating heat storage tank during heating operation.

In this case as well, some of the hot water received in the heating heat storage tank 90 is via the heat medium heat storage tank 100 through the third heat exchanger 110, the heat medium heat storage tank 100 is collected through the heat collecting plate 140. Since the heat medium having the high temperature thermal energy is circulated, the hot water flowing through the third heat exchanger 110 receives a high temperature heat energy from the heat medium to maintain a higher temperature. As a result, by using not only the hot water generated from the hot water supply device 70 but also heat energy by solar heat as a heat source, it is possible to efficiently operate the energy in realizing the heating and to implement the heating more effectively.

 According to an embodiment of the present invention of the above configuration, during the cooling or heating operation to generate and store hot water using the heat energy contained in the refrigerant that maintains a high temperature state during the evaporation process for heating or hot water for generating hot water It is used for a purpose. Accordingly, in the cooling and heating supply system according to the present invention, hot water supply and hot water for heating can be provided, and hot water for heating and hot water for heating can also be provided in winter heating operation utilized as a heating device. Hot water can be produced regardless of the season.

In addition, since the heat energy contained in the refrigerant at the designated position (after the evaporation process) during the cooling or heating operation is actively utilized, the amount of waste heat discarded to the outside during the condensation process is significantly reduced, and thus the heat exchange efficiency of the refrigerant during the condensation process. This increases the cooling or heating performance of the device can be further improved.

In addition, it utilizes solar heat as well as the heat energy contained in the refrigerant at a designated location to create hot water supply or heating, so it is possible to produce hot water and implement heating without a separate heat source such as an auxiliary heater as a whole. It is possible to implement, and there are also environmentally friendly advantages of using natural energy.

In addition, even when the device implementing the refrigeration or heating cycle does not operate in the cooling and heating supply system, heating and hot water may be generated using solar heat.

While the invention has been shown and described in connection with specific embodiments, the invention may be variously modified and changed without departing from the spirit or the scope of the invention provided by the following claims for utility model registration. It will be appreciated that one of ordinary skill in the art will readily know that there is such a condition.

1 is a schematic configuration diagram of a conventional general heat pump type cooling and heating system.

Figure 2 is a schematic diagram schematically showing the overall configuration of the central cold, heating supply system using a solar heat and shrinkage heat pump according to the present invention.

Figure 3 is an operational state diagram showing the flow of refrigerant and the circulation of water during the cooling operation of the cooling, heating supply system according to the present invention.

Figure 4 is an operational state diagram showing the flow of refrigerant and the circulation of water during the heating operation of the cold, heating supply system according to the present invention.

<Code Description of Main Parts of Drawing>

10 ... compressor 20 ... first heat exchanger

22 ... heat exchange line 30 ... expansion valve

40 ... 2nd heat exchanger 50a, 50b ... Four-way valve

60 ... cooling tank 62 ... cooling pipe

70 ... hot water supply 80 ... heat storage tank

90 ... heating heat storage tank 92 ... heater

94.Heat pipe 100 ... Heat storage heat storage tank

110 ... 3rd heat exchanger 120 ... pump

130 ... Heat medium circulation pipe 140 ...

Claims (5)

It includes components constituting a refrigeration cycle, such as a compressor, a first heat exchanger, an expansion valve, and a second heat exchanger, in the refrigeration cycle implemented by the components to switch the flow direction of the refrigerant to the cooling or heating device In the central cooling and heating system using a heat pump with a four-way valve to enable use, A storage cooling tank connected to the first heat exchanger and configured to receive and store cooling energy from the first heat exchanger during a cooling operation; A hot water supply device provided on a conduit connecting the compressor and the second heat exchanger during a cooling operation; A heat storage tank for supplying cold water to the hot water supply device and receiving hot water from the hot water supply device; A heat storage tank connected to a heating pipe which receives hot water from the heat storage tank, and on one side thereof, forms a circulation path via the heating target space for heating the heating target space; A heat medium heat storage tank passing through the third heat exchanger extending from the heating heat storage tank and accommodating a heat medium in a sealed inner space; A heat collecting plate installed at an advantageous position for collecting solar light and collecting the sunlight to convert it into thermal energy; And Solar heat and shrinkage heat hits, including; heat medium heat storage tank and the heat collecting plate, and a heat medium circulation pipe forming a path through which the heat medium can be moved so that the heat energy of the heat collecting plate can be transferred to the heat medium heat storage tank through the heat medium. Central cold and heating supply system using a pump. The method of claim 1, The cold storage tank, Central cooling and heating supply system using a solar heat and shrinkage heat pump, comprising: a cooling conduit for cooling the cooling target space. The method of claim 1, The hot water supply device, A heat exchange tank forming an inner space in which water supplied from the heat storage tank can be stored; A heat dissipation pipe corresponding to a pipe line passing through the heat exchange tank among pipe lines connecting the compressor and the second heat exchanger; Central cooling and heating supply system using a solar heat and shrinkage heat pump, characterized in that the high temperature and high pressure gaseous refrigerant during the cooling operation to increase the temperature of the water contained in the heat exchange tank while passing through the heat dissipation pipe. The method of claim 1, A pump is installed on the conduit extending from the third heat exchanger connecting the heating heat storage tank and the heat medium heat storage tank. The pump is a central cooling, heating supply system using a solar heat and shrinkage heat pump, characterized in that having a temperature sensing function. The method according to any one of claims 1 to 4, Solar heat and shrinkage heat heat pump further comprising; a hot water pipe forming a path for circulating water into the heating heat storage tank so that water provided outside the heating heat storage tank can be converted into hot water via the heating heat storage tank. Central cold and heating supply system.

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