KR101308028B1 - Thermal energy sharing system for multi buildings - Google Patents

Abstract

The present invention relates to a heat energy sharing system, and more particularly, to a heat energy sharing system in a plurality of urban units consisting of a heat energy producing building, a heat energy regulating building, and a heat energy consuming building. According to the present invention, an energy production building including a geothermal heat pump for performing a heat exchange cycle between a circulating water circulating underground heat exchange pipe buried in the ground and a refrigerant circulated by external driving energy, and sewage with heat exchange with sewage Energy control building including a sewage waste heat heat pump for performing a heat exchange cycle between the circulating water circulating the waste heat exchange pipe and a refrigerant circulated by external driving energy, and performing a heat exchange cycle in the geothermal heat pump and the sewage waste heat heat pump And a transmission pipe through which the cold water or hot water is converted by the temperature, and an energy consuming building receiving a cold water or hot water from the transmission pipe to perform a heat exchange cycle. The energy control building is installed in the transmission pipe. Measure the temperature and pressure of cold or hot water flowing through the transmission line W, the thermal energy sharing system in a plurality of buildings and a control unit for controlling the heat pump sewage waste heat, is provided.

Description

Thermal energy sharing system for multi buildings

The present invention relates to a heat energy sharing system, and more particularly, to a heat energy sharing system in a plurality of urban units consisting of a heat energy producing building, a heat energy regulating building, and a heat energy consuming building.

Heat pump means a device that can transfer heat from a low temperature to a high temperature. The construction and operation of the cycle is basically the same as for a freezer. When using low temperature heat is called a freezer, when using high temperature heat is called a heat pump.

The heat pump is a device that raises a high temperature heat energy state that can use low temperature heat energy that is difficult to use directly. Recently, heat pumps are used to heat, cool, and hot water individual buildings by using geothermal or hydrothermal heat.

The buildings of the city are buildings that operate only during the working hours of the week, such as schools, government offices, office buildings, etc., and buildings that consume 24 hours of heat energy for residential use, such as apartments, residential complexes, etc. Since the former can produce excess thermal energy at night or on weekends, and the latter lacks thermal energy, it is necessary to develop a system that can share the surplus thermal energy produced using a heat pump.

An object of the present invention is to provide a city-level heat energy sharing system that can minimize the unnecessary energy loss by sharing the heat energy produced through the heat pump in the buildings of the city to each other.

According to the present invention, an energy production building including a geothermal heat pump for performing a heat exchange cycle between a circulating water circulating underground heat exchange pipe buried in the ground and a refrigerant circulated by external driving energy, and sewage with heat exchange with sewage Energy control building including a sewage waste heat heat pump for performing a heat exchange cycle between the circulating water circulating the waste heat exchange pipe and a refrigerant circulated by external driving energy, and performing a heat exchange cycle in the geothermal heat pump and the sewage waste heat heat pump And a transmission pipe through which the cold water or hot water is converted by the temperature, and an energy consuming building receiving a cold water or hot water from the transmission pipe to perform a heat exchange cycle. The energy control building is installed in the transmission pipe. Measure the temperature and pressure of cold or hot water flowing through the transmission line W, the thermal energy sharing system in a plurality of buildings and a control unit for controlling the heat pump sewage waste heat, is provided.

In addition, the heat exchange cycle of the energy production building and the energy control building is provided with a heat energy sharing system in a plurality of buildings including a cooling cycle and a heating cycle.

The geothermal heat pump may include a compressor for compressing a refrigerant in a high temperature and high pressure state, a hot water heat exchanger for heating a hot water supply by performing heat exchange between the high temperature and high pressure refrigerant compressed by the compressor and the hot water introduced from the outside, and a refrigerant. Is connected to the expansion valve in series with the expansion valve and inflated in a low temperature and low pressure state, in the cooling cycle to perform heat exchange between the refrigerant and the cooling and heating water introduced from the outside to cool the cooling and heating water, the refrigerant in the heating cycle And a heating shared heat exchanger for heating the cooling and heating water by performing heat exchange between the heating and cooling water introduced from the outside, and connected in series with the heating sharing heat exchanger, and in the cooling cycle, between the cooling and cooling water circulating inside the energy production building. Heat-exchange to cool the air-conditioning water, and in the heating cycle, the refrigerant and the An indoor unit heat exchanger for heating the cooling and cooling water by performing heat exchange between the heating and cooling water circulating in the energy production building, an outdoor unit heat exchanger for performing heat exchange between the refrigerant and the circulation water circulating in the geothermal heat exchange pipe, the outdoor unit heat exchanger, and the compressor. And a four-way valve connected to the hot water heat exchanger and the indoor unit heat exchanger, and including a four-way valve for reversing the flow of the refrigerant to convert the heat exchange cycle of the energy production building into the cooling cycle and the heating cycle. A system is provided.

In addition, the transmission pipe is provided with a heat energy sharing system in a plurality of buildings separated into a hot water supply pipe flowing the heated hot water supply and a heating and cooling water heating pipe flowing heating or cooling.

In addition, the circulation water circulating through the geothermal heat exchange pipe in the cooling cycle is provided with a heat energy sharing system in a plurality of buildings that are directly supplied to the cooling and heating water transmission pipe.

In addition, there is provided a thermal energy sharing system in a plurality of buildings further comprising a cooling tower (9) for supplying cooling water absorbing the heat of condensation of the outdoor unit heat exchanger.

The sewage waste heat heat pump may include a compressor for compressing a refrigerant in a high temperature and high pressure state, a hot water heat exchanger for heating a hot water supply by performing heat exchange between the high temperature and high pressure refrigerant compressed by the compressor and the hot water introduced from the outside; An expansion valve which expands and outputs a refrigerant at a low temperature and low pressure state, and is connected in series with the expansion valve. In the cooling cycle, heat exchange is performed between the refrigerant and cooling and cooling water introduced from the outside to cool the cooling and cooling water. A heat exchanger shared heat exchanger for heating the cooling and heating water by performing heat exchange between the refrigerant and the cooling / heating water introduced from the outside, and an outdoor unit heat exchanger for performing heat exchange between the refrigerant and the circulating water circulating in the wastewater heat exchange pipe, the outdoor unit heat exchanger, and Connected to a compressor, the hot water heat exchanger, and the heating sharing heat exchanger, There is provided a thermal energy sharing system in a plurality of buildings including a four-way valve for reversing the flow of refrigerant so that the heat exchange cycle of the regulating building can be switched between the cooling cycle and the heating cycle.

In addition, the transmission pipe is provided with a heat energy sharing system in a plurality of buildings separated into a hot water supply pipe flowing the heated hot water supply and a heating and cooling water heating pipe flowing heating or cooling.

The system for sharing heat energy in a plurality of buildings according to the present invention may share heat energy produced through a heat pump in buildings of a city, thereby minimizing unnecessary energy loss.

In addition, when a large amount of thermal energy is required, it is possible to supply additional thermal energy by operating the thermal energy control building, so that sufficient thermal energy can be always supplied regardless of seasonal changes.

In addition, in the case of the embodiment in which the heat exchanger for hot water supply and the heat exchanger for heating and cooling are separated, a transmission energy reduction effect may be obtained at the transition season.

1 is a conceptual diagram of a thermal energy sharing system in a plurality of buildings according to the present invention.
2 is a conceptual diagram showing a heating cycle of the energy production building shown in FIG.
3 is a conceptual diagram showing a cooling cycle of the energy production building shown in FIG.
4 is a conceptual diagram showing a heating cycle of the energy control building shown in FIG.
5 is a conceptual diagram showing a cooling cycle of the energy control building shown in FIG.
FIG. 6 is a conceptual diagram illustrating a heating cycle of the energy consumption building illustrated in FIG. 1.
FIG. 7 is a conceptual diagram illustrating a cooling cycle of the energy consumption building illustrated in FIG. 1.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It will be apparent to those skilled in the art that the present invention may 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, It is provided to let you know. Like reference numerals refer to like elements throughout.

1 is a conceptual diagram of a thermal energy sharing system in a plurality of buildings according to the present invention.

Referring to Figure 1, the thermal energy sharing system in a plurality of buildings according to the present invention includes an energy production building (1), energy control building (2), energy consumption building (3), transmission piping (4).

Energy production building (1) is a group of buildings that operate 8 hours a day, 5 days a week, such as schools, government offices, office buildings, etc., and is a group of buildings capable of producing excess heat energy at night and on weekends. The energy production building (1) produces heat energy during building operation time and uses it in the building itself, and the surplus heat energy is transmitted to the energy consumption building (3) through the transmission pipe (4).

Referring to FIG. 2, the energy production building 1 includes a geothermal heat exchange pipe 18, a geothermal heat pump 10, and a cooling tower 19 embedded in the ground.

The geothermal heat exchange pipe 18 is provided with a pump to circulate the circulation water flowing inside the geothermal heat exchange pipe 18. The circulating water is maintained at about 16 degrees regardless of the season.

The geothermal heat pump 10 performs a heat exchange cycle between the circulating water flowing through the geothermal heat exchange pipe 18 and the refrigerant circulated by external driving energy. The geothermal heat pump 10 contains a refrigerant that carries heat, and the refrigerant circulates while changing the compression, condensation, expansion, and evaporation.

The geothermal heat pump 10 includes a compressor 11, a hot water heat exchanger 12, an indoor unit heat exchanger 13, a shared heat exchanger 14, an outdoor unit heat exchanger 15, an expansion valve 16, and a four-way valve. (17). Referring to FIG. 2, first, the geothermal heat pump 10 will be described based on a heating cycle.

The compressor 11 compresses the refrigerant, which is a gaseous state of low temperature and low pressure, to change to a high temperature and high pressure state.

The refrigerant changed to a high temperature and high pressure state in the compressor 11 heats the hot water introduced through the transfer pipe 4 while releasing heat from the hot water heat exchanger 12.

After passing through the four-way valve 17, the refrigerant passing through the hot water supply heat exchanger 12 heats the heating and cooling water circulating inside the energy production building 5 while releasing heat from the indoor unit heat exchanger 13 again. The remaining heat energy used inside the energy production building 5 is transferred to the energy consuming building 3 through the transmission pipe 4 again.

Next, the heating and cooling water introduced through the transmission pipe 4 is heated while releasing heat again from the heating sharing heat exchanger 14 connected in series with the indoor unit heat exchanger 13. Since the indoor unit heat exchanger 13 is used to heat the interior of the building, it has a priority of operation over the heating shared heat exchanger 14.

The refrigerant that has released heat in the above process is liquefied and then depressurized through the expansion valve 16 to become a liquid refrigerant having a low temperature and low pressure.

The refrigerant passing through the expansion valve 16 absorbs heat and evaporates through heat exchange with the circulating water in the outdoor unit heat exchanger 15.

Next, after passing through the four-way valve 17, the compressor 11 again becomes a high temperature and high pressure gas state.

That is, the hot water heat exchanger 12, the shared heating heat exchanger 14, the indoor unit heat exchanger 13 in the heating cycle acts as a condenser to absorb the heat released from the refrigerant to condense the refrigerant, the outdoor unit heat exchanger (15) Acts as an evaporator to evaporate the refrigerant by supplying heat to the refrigerant.

Next, the geothermal heat pump 10 will be described based on the cooling cycle with reference to FIG. 3. The compressor 11 compresses the refrigerant, which is a gaseous state of low temperature and low pressure, to change to a high temperature and high pressure state.

The refrigerant changed to a high temperature and high pressure state in the compressor 11 heats the hot water introduced through the transfer pipe 4 while releasing heat from the hot water heat exchanger 12. This is the same as the heating cycle.

Unlike the heating cycle, the refrigerant passing through the hot water heat exchanger 12 is condensed by passing heat from the outdoor unit heat exchanger 15 after passing through the four-way valve 17.

After releasing the heat, the refrigerant is liquefied and decompressed through the expansion valve 16 to become a liquid refrigerant at low temperature and low pressure.

The refrigerant passing through the expansion valve 16 absorbs heat from the heating shared heat exchanger 14 and the indoor unit heat exchanger 13 to evaporate.

Next, after passing through the four-way valve 17, the compressor 11 again becomes a high temperature and high pressure gas state.

That is, in the cooling cycle, the hot water supply heat exchanger 12 and the outdoor unit heat exchanger 15 serve as a condenser that absorbs heat released from the refrigerant to condense the refrigerant, and the heating shared heat exchanger 14 and the indoor unit heat exchanger 13 Acts as an evaporator to evaporate the refrigerant by supplying heat to the refrigerant.

In the cooling cycle, the liquid that exchanges heat with the refrigerant in the outdoor unit heat exchanger (15) uses the cooling water stored in the cooling tower (19), and the circulating water flowing inside the geothermal heat exchange pipe (18) is transferred to the cooling and heating water transmission pipe (4). It is directly supplied and used for cooling the energy consuming building 3.

The four-way valve 17 reverses the flow of the refrigerant, so that the heat exchange cycle switches between the cooling cycle and the heating cycle.

Since the geothermal heat pump 10 of the present invention is provided with a separate hot water supply heat exchanger 12, there is an advantage that the hot water load can be obtained at all times regardless of the heating and cooling operation. In addition, by connecting the heating sharing heat exchanger 14, the indoor unit heat exchanger (13) in series, it is possible to minimize the energy loss because the heating incubation is directly distinguished from the refrigerant.

The energy control building (2) uses intercity support facilities such as sewage terminal facilities. The energy control building 2 checks whether the heat energy supplied from the energy production building 1 is insufficient, and serves to further produce heat energy.

Referring to FIG. 4, the energy control building 2 includes a sewage waste heat exchange pipe 28, a sewage waste heat heat pump 20, and a control device in which heat exchange with sewage is performed. The minimum temperature that can be obtained in winter during sewage is about 10 degrees, and the temperature is raised by the wastewater heat pump 20 to produce water about 50 degrees. The maximum temperature that can be obtained in summer is about 25 degrees to produce 16 degrees of water by operating the waste heat heat pump 20.

Conventional heat pumps produce 7 degrees of water, but the sewage waste heat heat pump 20 of the present invention produces 16 degrees of water, so the energy efficiency is doubled. In more detail, the temperature difference is 18 degrees when the 25 degree water is converted to 7 degrees, but the temperature difference is 9 degrees when manufacturing the 16 degree cooling water is approximately 2 times the energy efficiency.

The reason for producing 16 degrees of cooling water without producing low temperature cooling water as in the prior art is that the sewage waste heat heat pump 20 and the home air conditioner operate on the same principle, so the energy efficiency is similar, This is because there is no sharing advantage in consideration of pipe loss and transmission loss during the process.

The sewage waste heat heat pump 20 includes a compressor 21, a hot water heat exchanger 22, a heating shared heat exchanger 24, an outdoor unit heat exchanger 25, an expansion valve 26, and a four-way valve 27. . The sewage waste heat heat pump 20 is different from the geothermal heat pump 10 in that it does not include the indoor unit heat exchanger 13. First, referring to FIG. 4, the geothermal heat pump 10 will be described based on a heating cycle.

The compressor 21 compresses the refrigerant, which is a gaseous state of low temperature and low pressure, and changes it to a high temperature and high pressure state.

The refrigerant changed into a high temperature and high pressure state in the compressor 21 heats the hot water introduced through the transmission pipe 4 while releasing heat from the hot water heat exchanger 22.

After passing through the four-way valve 27, the refrigerant passing through the hot water supply heat exchanger 22 heats the cooling and heating water introduced through the transmission pipe 4 while releasing heat from the heating shared heat exchanger 24 again.

The refrigerant that has released heat in this process is liquefied and then depressurized through the expansion valve 26 to become a liquid refrigerant having a low temperature and low pressure.

The refrigerant passing through the expansion valve 26 absorbs heat and evaporates through heat exchange with sewage in the outdoor unit heat exchanger 25.

Next, after passing through the four-way valve 27, the compressor 21 again becomes a high temperature and high pressure gas state.

That is, in the heating cycle, the hot water supply heat exchanger 22 and the heating sharing heat exchanger 24 serve as a condenser that absorbs heat released from the refrigerant and condenses the refrigerant, and the outdoor unit heat exchanger 25 supplies heat to the refrigerant. It acts as an evaporator to evaporate the refrigerant.

Next, the sewage waste heat heat pump 20 will be described based on a cooling cycle with reference to FIG. 5. The compressor 21 compresses the refrigerant, which is a gaseous state of low temperature and low pressure, and changes it to a high temperature and high pressure state.

The refrigerant changed into a high temperature and high pressure state in the compressor 21 heats the hot water introduced through the transmission pipe 4 while releasing heat from the hot water heat exchanger 22. This is the same as the heating cycle.

Unlike the heating cycle, the refrigerant passing through the hot water heat exchanger 22 is condensed by passing heat from the outdoor unit heat exchanger 25 after passing through the four-way valve 27.

After releasing the heat, the refrigerant is liquefied and decompressed through the expansion valve 26 to become a liquid refrigerant at low temperature and low pressure.

The refrigerant passing through the expansion valve 26 absorbs heat from the heating shared heat exchanger 24 and evaporates.

Next, after passing through the four-way valve 27, the compressor 21 again becomes a high temperature and high pressure gas state.

That is, in the cooling cycle, the hot water supply heat exchanger 22 and the outdoor unit heat exchanger 25 serve as a condenser that absorbs heat released from the refrigerant to condense the refrigerant, and the heating sharing heat exchanger 24 supplies heat to the refrigerant. It acts as an evaporator to evaporate the refrigerant.

By reversing the flow of the refrigerant in the four-way valve 27, the heat exchange cycle switches between the cooling cycle and the heating cycle.

Hot water and cooling and heating water produced in the energy production building (1) and the energy control building (2) is transferred to the energy consumption building (3) through the transmission pipe (4).

The transmission pipe 4 is separated into the hot water supply pipes 41 and 42 and the heating and cooling water transmission pipes 43 and 44. Each transmission pipe (4) is divided into a supply pipe (41, 43) and a return pipe (42, 44) is operated.

Cooling and heating water supply pipe 43 is about 50 degrees in the winter, about 16 degrees in the summer, the cooling and cooling water flows, the cooling and cooling water does not flow in the season. The hot water supply water supply pipe 41 flows about 50 degrees four seasons. Since the hot water supply has a low flow rate, the hot water supply pipes 41 and 42 have a cross-sectional area of about 25% of the air conditioning water supply pipes 43 and 44. Since the hot water supply pipes 41 and 42 and the hot and cold water water supply pipes 43 and 44 are distinguished from each other, only the hot water supply pipes 41 and 42 having a small cross-sectional area can be used in the transition season, thereby reducing the transmission energy.

At the distal end of the transfer pipe 4, a pressure gauge 45 and a thermometer 46 are provided. The pressure and temperature data at the distal end of the transmission pipe 4 are transmitted to the control device of the energy regulating building 2, and the control device controls the sewage waste heat heat pump 20 based on the pressure and temperature data.

For example, in the case of heating and hot water supply, when the consumption of thermal energy increases in the energy consuming building 3 and a shortage of heat load occurs, the pressure and temperature at the end of the transmission pipe 4 drop. When the control apparatus confirms this signal, it operates the sewage waste heat heat pump 20. On the contrary, when the heat energy consumption is reduced and the excessive heat production occurs, the pressure difference between the supply and the return pipe of the distal end of the transmission pipe 4 increases. When the control apparatus confirms this signal, the sewage waste heat heat pump 20 is stopped.

Energy consumption building (3) is a group of buildings that consume 24 hours of heat energy, such as apartment buildings, residential buildings such as residential complexes and hospitals.

As shown in FIG. 6, the heating operation in the energy consuming building 3 consumes thermal energy by acquiring shared heat energy without the heating heat source equipment through the heating and cooling heat exchanger 33 only as necessary for the building. In the case of hot water supply, the shared heat energy may be acquired through the hot water supply heat exchanger 32 regardless of the season, and consumed at all times.

As shown in FIG. 7, the cooling operation in the energy consuming building 3 is operated by dual cooling equipment. First, the building is first cooled by using about 16 degrees of circulating water supplied from the energy production building 1 and about 16 degrees of cooling and cooling water supplied from the control building. Secondly, the air conditioner 34 is used to finally lower the desired temperature. All apartment floors are equipped with heating coils, but they are not used during the summer, so if you circulate 16 degree circulating water and heating and cooling water in the heating coil, the temperature of the whole apartment will drop by 2 ~ 3 degrees.

The reason for using a 16-degree circulating water instead of a lower temperature circulating water by the cooling heat energy sharing method, geothermal heat pump 10, sewage waste heat heat pump 20, energy efficiency of home air conditioner Because this is similar. This is because there is no sharing advantage in consideration of piping and transmission loss during the cooling heat source transmission process. 16 degrees circulating water is the optimum temperature which can be acquired by a groundless heat exchanger without power, and the temperature which condensate does not generate | occur | produce indoors.

However, since only 16 degrees of circulating water is impossible to operate cooling, secondary air conditioner 34 is used to maintain the desired temperature and humidity of the building. In the heat energy consuming building, the load that can be cooled down to 16 degrees of circulating water is about 60% of the cooling load, and the load that is cooled by the air conditioner 34 is about 40%. Therefore, the amount of home air conditioner 34 used can be reduced to about 40%.

16 degrees circulating water responsible for 60% of the cooling load can be obtained from a non-powered underground heat exchanger and a sewage waste heat heat pump 20 having improved energy efficiency twice. By applying the cooling thermal energy sharing method of the present invention, the cooling operation is possible with an electrical load of about 52% of the electrical load when using the air conditioner. The air conditioner 34 consumes 40% of energy, and the geothermal circulating water consumes 2% of energy because the transfer power is 5% at an average load rate of 40%, and the sewage waste heat heat pump 20 is energy efficient at a load rate of 20%. It is twice as much and consumes 10% of energy. Thus, about 52% cooling load reduces the cooling load of the heat energy consuming building.

While the above has been shown and described with respect to preferred embodiments of the present invention, the present invention is not limited to the specific embodiments described above, it is usually in the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or prospect of the present invention.

1: energy production building 2: energy control building
3: energy consumption building 4: transmission piping
10: geothermal heat pump 20: sewage waste heat heat pump
11, 21: compressor 12, 22: hot water heat exchanger
13: indoor unit heat exchanger 14, 24: heating sharing heat exchanger
15, 25: outdoor unit heat exchanger 16, 26: expansion valve
17, 27: 4-way valve 18: Geothermal exchange pipe
19: cooling tower 28: sewage waste heat exchange pipe
32: hot water supply heat exchanger 33: heating and cooling heat exchanger
34: air conditioning

Claims (8)

An energy production building including a geothermal heat pump for performing a heat exchange cycle including a cooling cycle and a heating cycle between the circulating water circulating in the ground and the refrigerant circulated by external driving energy;
An energy control building including a sewage waste heat heat pump for performing a heat exchange cycle including a cooling cycle and a heating cycle between a circulating water circulating through a sewage waste heat exchange pipe in which sewage and heat exchange are performed, and a refrigerant circulated by external driving energy;
A transmission pipe through which cold water or hot water whose temperature is converted by performing a heat exchange cycle in the geothermal heat pump and the sewage waste heat heat pump;
An energy consuming building that receives cold water or hot water from the transmission pipe and performs a heat exchange cycle;
It is provided with a control device configured to control the sewage waste heat heat pump by measuring the temperature and pressure of cold water or hot water flowing through the transmission pipe,
The geothermal heat pump,
A compressor for compressing the refrigerant at a high temperature and high pressure;
A hot water heat exchanger configured to heat a hot water supply by performing heat exchange between a high temperature and high pressure refrigerant compressed by the compressor in a cooling cycle and a heating cycle, and hot water introduced from the outside;
An expansion valve for expanding and outputting the refrigerant at a low temperature and low pressure;
It is connected in series with the expansion valve, and in the cooling cycle performs heat exchange between the refrigerant and the cooling and cooling water introduced from the outside to cool the cooling and heating water, and in the heating cycle, heat exchange between the refrigerant and the cooling and cooling water introduced from the outside Heating sharing heat exchanger and heating water,
It is connected in series with the heating sharing heat exchanger, and in the cooling cycle performs a heat exchange between the refrigerant and the cooling and heating water circulating inside the energy production building to cool the cooling and heating water, in the heating cycle to circulate the refrigerant and the energy production building inside An indoor unit heat exchanger for heating the heating and cooling water by performing heat exchange between heating and cooling water,
An outdoor unit heat exchanger configured to perform heat exchange between a refrigerant and circulating water circulating through the geothermal heat exchange pipe;
A four-way valve connected to the outdoor unit heat exchanger, the compressor, the hot water supply heat exchanger, and the indoor unit heat exchanger, and inverting the flow of the refrigerant to convert the heat exchange cycle of the energy production building into the cooling cycle and the heating cycle. ,
The transfer pipe includes a hot water supply pipe through which the hot water is heated in the hot water heat exchanger, and a heating and cooling water transfer pipe through which the heating and cooling air is heated or cooled in the heating shared heat exchanger.
The circulating water circulating through the geothermal heat exchange pipe is supplied to the outdoor unit heat exchanger in the heating cycle, and in the cooling cycle, the heat energy in the plurality of buildings further includes a valve for switching the flow of the circulating water so as to be directly supplied to the cooling / heating water transmission pipe. Shared system. delete delete delete delete The method of claim 1,
And a cooling tower for supplying cooling water for absorbing the heat of condensation of the outdoor unit heat exchanger. The method of claim 1,
The sewage waste heat heat pump,
A compressor for compressing the refrigerant at a high temperature and high pressure;
A hot water heat exchanger configured to heat the hot water by performing heat exchange between the high temperature and high pressure refrigerant compressed by the compressor and the hot water introduced from the outside;
An expansion valve for expanding and outputting the refrigerant at a low temperature and low pressure;
It is connected in series with the expansion valve, and in the cooling cycle performs a heat exchange between the refrigerant and the cooling and cooling water introduced from the outside to cool the cooling and heating water, and in the heating cycle to heat exchange between the refrigerant and the cooling and cooling water introduced from the outside Heating sharing heat exchanger and heating water,
An outdoor unit heat exchanger configured to perform heat exchange between a refrigerant and circulating water circulating in the sewage waste heat exchange pipe;
A four-way valve connected to the outdoor unit heat exchanger, the compressor, the hot water supply heat exchanger, and the heating shared heat exchanger, and converting the heat exchange cycle of the energy control building into the cooling cycle and the heating cycle; Thermal energy sharing system in a plurality of buildings including. The method of claim 7, wherein
The transmission pipe is a heat energy sharing system in a plurality of buildings separated into a hot and cold water supply pipe flows through the heated hot water supply and the heating and cooling air-cooled water heating pipe.

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