KR200229368Y1 - A heat pump system using heat in the air and earth and electric power of late night - Google Patents

Abstract

The present invention relates to a heat pump system using a queue, geothermal heat and midnight power, and more specifically, a condenser coil and an evaporator used in a cold / hot water system of a heat pump are installed in a hot water tank and a cold water tank, respectively, By using countlessly distributed queues and geothermal and cheap late night power or industrial power for farming and fishing villages as the low-temperature (evaporator) heat source of the heat pump, the heat transfer area of the heat pump is maximized by maximizing the heat transfer area of the evaporator and condenser coils that form cold and hot water. The present invention relates to a heat pump system using geothermal and midnight electric power and a queue that can contribute to performance and at the same time, continuously supply cheaper and pollution-free energy.

The heat pump system using the queue and the geothermal and late night power according to the present invention is a queue exchanger (12) or through the four-way valve 11 and the solenoid valve 41 from the compressor 10 for discharging the refrigerant gas of high temperature and high pressure In the cooling and heating system for recovering the refrigerant supplied to the indoor unit 13 to the condenser 16 through the expansion valve 14, the hot water tank through the solenoid valve 42 connected to the compressor 10 of the cooling and heating system. (21) Cooling and hot water system in which the refrigerant introduced into the condenser coil (31) is circulated to the queue exchanger (12) of the cooling and heating system through the expansion valve (15) and the evaporator (33) inside the cold water tank (23). And a one-way valve (61, 62, 63) to use the queue exchanger (12) of the cooling and heating system and the evaporator (33) of the cooling and heating system according to the flow of the refrigerant. (105,115,116) at the second to fifth branch points (72,73,74,75) It is installed so that the hot water tank 21 and the cold water tank 23 of the cold and hot water system is a geothermal heat exchanger (22) having a heater 24 therein by the circulation pump (52, 53) and the pipe (201, 202, 203, 204) Are respectively connected to, and the geothermal heat exchanger 22 is connected to the corrugated pipe 25 buried underground by the circulation pump 51 and the pipes 205 and 206.

Description

A heat pump system using heat in the air and earth and electric power of late night}

The present invention relates to a heat pump system using a queue, geothermal heat and midnight power, and more specifically, a condenser coil and an evaporator used in a cold / hot water system of a heat pump are installed in a hot water tank and a cold water tank, respectively, By using countlessly distributed queues and geothermal and cheap late night power or industrial power for farming and fishing villages as the low-temperature (evaporator) heat source of the heat pump, the heat transfer area of the heat pump is maximized by maximizing the heat transfer area of the evaporator and condenser coils that form cold and hot water. The present invention relates to a heat pump system using geothermal and midnight electric power and a queue that can contribute to performance and at the same time, continuously supply cheaper and pollution-free energy.

In general, in a residential space such as a house or a work space such as an office or a factory, the cooling of the summer and the heating of the winter are the main factors of the living environment.In recent years, the factories have been expanded due to the expansion of residential space and the industrial development. Due to the increase in the number of sites and offices, the demand for energy for cooling and heating is rapidly increasing.

Compared to the increase in energy demand as described above, the supply of energy does not fully meet the demand due to the price increase of fossil fuels such as oil or natural gas and environmental pollution caused by soot generated during the combustion of fossil fuels. In particular, in the fields of agriculture, livestock, and fisheries, managers of facility farms and aquaculture are under pressure to increase their cooling and heating costs due to the increase in fossil fuel prices. As a result, the production cost of products has risen, which is causing a lot of difficulties.

In order to overcome these factors, in recent years, generation and recovery in the compression, evaporation, and condensation cycle of refrigerant can be achieved to obtain energy almost equivalent to the cooling and heating effect of burning fossil fuels without generating pollution. The use of air conditioning equipment that performs cooling and heating by using the heat is becoming common, and heat pumps that allow a mixture of cooling, heating, cooling and hot water systems to be used are representatively popular.

However, even in the use of the heat pump as described above, when the outside temperature becomes very low, such as in winter, 0 ° C or less, there is a lack of heat source capable of maintaining the low temperature part (evaporation part) of the heat pump at a temperature of 10 to 15 ° C. Therefore, if the low temperature part of the heat pump is not replenished by separate heating by fossil fuel, the heat pump consisting of cooling, heating system and cold and hot water system cannot be smoothly operated, and thus, fossil fuel The problem of rising energy procurement costs and pollution due to the use of P has not been completely solved.

As described above, the lack of heat source in the low temperature part of the heat pump generated in winter is compensated by natural solar heat without using fossil fuel, and latent heat storage material (phase change material) such as water that absorbs solar heat absorbed by using a flat plate collector. It is stored in the heat pump to be used as a heat source for the low temperature part of the heat pump, but the temperature changes in the four seasons like in Korea, and the efficiency is not reduced in the regions where the weather is below freezing in the winter, as well as the solar heat by night or terrain Due to various obstacles that cannot be obtained, it is not practically used.

In addition, it is known that about 47 to 50% of solar heat is used for cooling and heat exchange system using geothermal energy stored underground through the surface, but it is known that it is described in Korean Patent Publication No. 2000-0063299. Since only the ground heat is used to supplement the heat source necessary for the evaporation of the refrigerant before it is introduced into the compressor, if sufficient ground heat is not obtained, not only does it interfere with the smooth operation of the air-conditioning heat exchange system, but also the heat exchange in the indoor heat exchanger and the cooling coil. The action occurs irrespective of the geothermal heat, and the overall thermal efficiency of the heating and cooling heat exchange system is lowered in terms of lowering the temperature of a high temperature heat source such as an indoor heat exchanger and increasing the temperature of a low temperature heat source such as a cooling coil to increase the overall thermal efficiency. .

In addition to the above cooling and heating heat exchange system, in the cold and hot water systems of other general heat pumps, the pipes through which the refrigerant flows are mostly wound on the outside of the hot water tank or the cold water tank to heat and store the water stored in the tank. Since the structure is to be cooled, the heat transfer area between the pipe in which the refrigerant flows and the water stored in the tank is very small, there is a problem that the heating and cooling efficiency of the water by the refrigerant is reduced.

The present invention is devised to solve the above-mentioned problems, the heat pump system using the queue and geothermal and midnight power according to the present invention is a condenser coil and evaporator used in the cold and hot water system of the heat pump hot water tank By installing in and inside the cold water tank, respectively, to maximize the heat transfer area of the evaporator and condenser coil to form cold and hot water to contribute to the performance improvement of the heat pump.

In addition, when the heat source of the heat pump is insufficient, such as in winter, it is possible to use the queue and the geothermal heat scattered in the atmosphere and the ground as the low temperature part (evaporator) heat source of the heat pump, and only the queue and the geothermal heat can not solve the lack of the low temperature part. In this case, by using low-cost late night power or industrial power for farming and fishing villages as the heat source of the low temperature part of the heat pump, it lowers the temperature of the high temperature heat source and raises the temperature of the low temperature heat source to increase the overall heat efficiency of the heat pump and at the same time, it continues to supply cheaper and pollution-free energy. It is another technical problem of this invention to make it possible to supply.

1 is a piping diagram showing the overall structure of the heat pump system using the queue and geothermal heat and midnight power according to the present invention.

Figure 2 is a piping diagram showing the structure of the evaporator installed in the heat pump system according to the present invention.

3 is a schematic diagram of a heat pump system according to the present invention applied to a cooling and heating cycle.

Figure 4 is a system diagram applying the heat pump system according to the present invention in a cold, hot water cycle.

5 is a system diagram applied to the heat pump system for cooling and hot water cycle according to the present invention.

Figure 6 is a system diagram applying the heat pump system according to the present invention heating and cold water cycle.

Figure 7 is a system diagram applying the heat pump system according to the present invention heating and cold, hot water cycle.

<Explanation of symbols for main parts of drawing>

1: Ground 10: Compressor 11: Four-way replacement valve

12: queue exchanger 13: indoor unit 14, 15: expansion valve

16 condenser 21 hot water tank 22 geothermal heat exchanger

23: cold water tank 24: heater 25: corrugated pipe

31 condenser coil 33 evaporator 33a refrigerant pipe

33b: antifreeze pipe 33c: circulation pump 41, 42: solenoid valve

51 ~ 53: Circulation pump 61 ~ 63: One-way valve 71: 1st branch point

72: second branch point 73: third branch point 74: fourth branch point

75: fifth branch 101-116: piping (refrigerant) 201-206: piping (water)

331: primary heat exchange chamber 332: secondary heat exchange chamber

The present invention for achieving the above object, from the compressor 10 for discharging the high-temperature, high-pressure refrigerant gas through the solenoid valve 41 and the four-way replacement valve 11 to the queue exchanger 12 or the indoor unit 13 In the cooling and heating system for recovering the supplied refrigerant to the condenser 16 through the expansion valve 14, the inside of the hot water tank 21 through the solenoid valve 42 connected to the compressor 10 of the cooling and heating system. The cooling and hot water system in which the refrigerant introduced into the condenser coil 31 is circulated to the queue exchanger 12 of the cooling and heating system through the expansion valve 15 and the evaporator 33 inside the cold water tank 23 is installed. Piping 105, 115, 116 is provided with a one-way valve (61, 62, 63) to use the queue exchanger (12) of the cooling and heating system and the evaporator (33) of the cooling and hot water system according to the flow of the refrigerant. Installed to cross at the second to fifth branch points 72, 73, 74, and 75; The hot water tank 21 and the cold water tank 23 of the water system are respectively connected to the geothermal heat exchanger 22 having the heater 24 therein by the circulation pumps 52 and 53 and the pipes 201, 202, 203 and 204. The geothermal heat exchanger 22 is connected to the corrugated pipe 25 embedded in the basement by the circulation pump 51 and the pipes 205 and 206.

Hereinafter, the overall configuration of the heat pump system using the queue and geothermal heat and midnight power according to the present invention will be described in detail with reference to FIGS. 1 and 2.

1 is a piping diagram showing the overall structure of the heat pump system using the queue and geothermal heat and midnight power according to the present invention, the configuration of the present invention, as shown in Figure 1, the compressor 10, four-way replacement valve ( 11) a cooling / heating system consisting of a queue exchanger 12, an indoor unit 13, an expansion valve 14 and a condenser 16, a hot water tank 21 having an condenser coil 31, and an expansion valve 14 therein. ), A cold and hot water system comprising a cold water tank 23 having an evaporator 33 therein, a geothermal heat exchanger 22 having a heater 24, and a corrugated pipe 25 embedded underground.

In the above cooling and heating system, the compressor 10 for discharging the high-temperature, high-pressure refrigerant gas is a four-way replacement valve through a pipe 102 including a pipe 101, a first branch point 71, and a solenoid valve 41. The queuing exchanger 12 and the indoor unit 13, which are connected to the installation 11 and are provided with the refrigerant discharged from the compressor 10 through the four-way replacement valve 11, which are connected to each other, are connected by four pipes 103 and 110. It is installed in connection with each of the replacement valve (11).

The queue exchanger 12 and the indoor unit 13 are connected to each other by four pipes 104, 107, 108, and 109 communicating through the third to fifth branch points 73, 74, and 75, and one of them is installed. Pipe 108 is provided with an expansion valve 14, the four-way replacement valve 11 is connected to the condenser 16 by the pipe 111 is installed, the condenser 16 to the pipe 112 It is connected to the compressor 10 by the installation.

In the cold and hot water system, the pipe 113 including the solenoid valve 42 is crossed at the first branch point 71 and the pipe 101 connected to the compressor 10 of the cooling and heating system. It is connected to the inlet side of the condenser coil 31 in the interior of 21 and extends to the outside of the hot water tank 21 from the outlet side of the condenser coil 31 which the pipe 114 provided with the expansion valve 15 was electric. Is installed in connection with the inlet side of the evaporator 33 in the cold water tank 23, the outlet side of the evaporator 33 is connected to the queue exchanger 12 of the cooling and heating system by the pipe 106.

The pipe extending from the condenser coil 31 of the hot water tank 21 to use the queue exchanger 12 of the cooling and heating system and the evaporator 33 of the cooling and hot water system as needed. 114 intersects two pipes 115, 116 with one-way valves 62, 63 at the second branch point 72, and each of the previously described pipes 115, 116 with one-way valves 62, 63 is A pipe extending from the third branch point 73 that intersects with the pipe 108 having the expansion edge 14 by the third and fourth branch points 73 and 74 formed between the expansion sides 14 and extends from the third branch point 73 described above. 107 intersects the pipe 105 having the one-way valve 61 and the fifth branch point 75, and the pipe 105 described above is connected to the input shaft of the evaporator 33 inside the cold water tank 23. .

Therefore, when the indoor unit 13 of the cooling and heating system is applied to heating, only the queue exchanger 12 of the cooling and heating system may be used as one evaporator, and the queue exchanger 12 and cooling of the cooling and heating system may be used as one evaporator. Can be used as two evaporators by mixing the evaporator 33 of the hot water system, and when the condenser coil 31 of the cold and hot water system is applied to hot water, the evaporator 33 of the cold and hot water system and the cooling and heating are similarly used. The queue exchanger 12 of the system can be used interchangeably as two evaporators, and in many other cases, the queue exchanger 12 and the evaporator 33 can be used interchangeably as necessary.

In addition, the hot water tank 21 and the cold water tank 23 of the cold and hot water system are connected to the geothermal heat exchanger 22 by pipes 201, 202, 203 and 204 having circulation pumps 52 and 53, respectively. The geothermal heat exchanger (22) is connected to the corrugated pipe (25) buried underground by 3 to 5 m depth by pipes (205, 206) having circulation pumps (51), and the latent geothermal heat exchanger (22) provides midnight electric power. The heater 24 to be used is charged and installed into the geothermal heat exchanger 22, and is configured to circulate water through the cold and hot water tanks 21.23 and the geothermal heat exchanger 22.

And, Figure 2 is a piping diagram showing the evaporator structure of the cold water tank installed in the heat pump system according to the present invention, the configuration of the evaporator 33 described above, as shown in Figure 2, the refrigerant pipe through which the refrigerant flows The first heat exchange chamber 331 provided with the antifreeze in the antifreeze and the antifreeze pipe 33b through which the antifreeze flows in the primary heat exchange chamber 331 delivered by the circulation pump 33c are provided in the water. The secondary heat exchange chamber 332, the inlet and outlet sides of the refrigerant pipe 33a is connected to the condenser coil 21a in the hot water tank 21 and the queue exchanger 12 of the cooling and heating system, respectively. The secondary heat exchange chamber 332, which is installed, is connected to the geothermal heat exchanger 22 by the pipes 203 and 204 provided with the circulation pump 53.

The operational relationship between the queue and the heat pump system using the geothermal heat and midnight power according to the present invention having the above-described configuration will be described in detail with reference to the drawings of FIGS. 3 to 7. It represents the closed part of the flow.

3 is a system diagram of a heat pump system according to the present invention applied to a cooling and heating cycle, in which the solenoid valve 42 and the one-way valve 61 are closed and the high temperature and high pressure discharged from the compressor 10 is heated. The refrigerant gas is supplied to the indoor unit 13 through the branch point 71, the solenoid valve 41, and the four-way replacement valve 11 to be heated, and the heated refrigerant gas is the expansion valve 14 and the queue exchanger 12. In this case, it is a circulating process that is recovered to the condenser 16 through the use of an evaporator, and is supplied to the compressor 10 again. In the case of cooling, the refrigerant gas of the high temperature and high pressure discharged from the compressor 10 is queued. Supplied to the exchanger 12 (in this case, used as a radiator) to release heat to the atmosphere, and the released refrigerant gas is supplied to the indoor unit 13 through the expansion valve 14 for cooling, and then the condenser 16 ) And resupply to the compressor (10) It is composed of the circulation process, which is the same as the operation process of general cooling and heating system.

4 is a system diagram of a heat pump system according to the present invention applied to a cold / hot water cycle, wherein a high-temperature, high-pressure refrigerant gas discharged from the compressor 10 in a state in which the solenoid valve 41 and the one-way valve 63 are closed is piped. It flows into the condenser coil 31 inside the hot water tank 21 through the pipe 113 including the 101 and the first branch point 71 and the solenoid valve 42 to heat the water inside the hot water tank 21. Let's go.

As described above, the refrigerant that heated the water in the hot water tank 21 flows into the second branch point 72 through the pipe 114 having the expansion valve 15, and at the second branch point 72 described above, the one-way valve The one-way valve 61 and the pipes 107 and 105 which are introduced into the third branch point 73 through the pipe 115 having the 62 and communicate with each other by the third branch point 73 and the fifth branch point 75. Into the evaporator 33 inside the cold water tank (23).

As described above, the refrigerant introduced into the evaporator 33 first cools the antifreeze in the primary heat exchange chamber 331 through the refrigerant pipe 33a in the evaporator 33, and then circulates the pump 33c. The coolant is cooled by the water inside the secondary heat exchange chamber (332) through the antifreeze pipe (33b) flows.

As described above, the refrigerant having cooled the water in the cold water tank 23 is recovered through the pipe 106 to the queue exchanger 12 of the cooling and heating system (in this case, used as the secondary evaporator), and the queue exchanger 12 The refrigerant recovered by) is recycled to the condenser 16 through the four-way replacement valve 11 and the pipe 111, and then supplied to the compressor 10 through the pipe 112, and the hot water tank (21) and the cold water tank (23) is connected to the pipe (not shown) to use the hot water and cold water according to the required use, and the geothermal heat exchanger (22) to ensure the continuous supply of water by the pipe not shown do.

When it is difficult to maintain the low temperature (evaporator) at a temperature of 10 ~ 15 ℃ in the operation process of the cold, hot water cycle as described above, during the operation of the cold, hot water cycle, the outside temperature is relatively high During the time, the geothermal heat recovered by the geothermal heat exchanger 22 through the corrugated pipe 25 is circulated to the cold and hot water tanks 21, 23 through the circulation pumps 52, 53 and the pipes 201, 202, 203, 204 and the queue exchanger 12. ) Is used for the secondary evaporation of the refrigerant, and during the night time, the geothermal heat recovered by the geothermal heat exchanger 22 through the corrugated pipe 25 is cooled by the circulation pumps 52, 53 and the pipes 201, 202, 203, 204. By circulating in the hot water tanks 21 and 23, it is possible to replenish the low-temperature heat source of the cold and hot water system.

In addition, if it is difficult to secure a sufficient heat source using only queues and geothermal heat, the heat transfer tube 24 installed in the geothermal heat exchanger 22 is heated by using late-night electric power or industrial power in rural areas to supplement the low-temperature heat source of the cold / hot water cycle. The hot water in the hot water tank 21 is supplied directly to the evaporator 33 inside the cold water tank 23 by the circulation pumps 52 and 53 and the pipes 201, 202, 203 and 204 to supplement the low-temperature heat source of the cold and hot water cycles. You can do it.

As described above, using a queue, geothermal heat, and late-night electric power to replenish a low-temperature heat source such as an evaporator 33 inside the cold water tank 23, and circulate water by the circulation pump 52 and the pipes 201 and 202 to provide a hot water tank ( The temperature of the water coming into contact with the condenser coil 31 of 21) can be relatively lowered to improve the heating efficiency of the hot water by the capacitor coil 31, thereby increasing the overall thermal efficiency of the heat pump system. Since the condenser coil 31 and the evaporator 33 which exchange heat with water are installed in the hot water tank 21 and the cold water tank 23, the heat transfer area is maximized, thereby contributing to the improvement of the performance of the heat pump.

5 is a system diagram of a heat pump system according to the present invention applied to a cooling and hot water cycle, wherein the solenoid valve 41 and the one-way valve 61 and 62 are closed at a high temperature and high pressure refrigerant gas discharged from the compressor 10. Water flows into the condenser coil 31 inside the hot water tank 21 through the pipe 113 including the temporary pipe 101, the first branch 71, and the solenoid valve 42. Will be heated.

As described above, the refrigerant that heated the water in the hot water tank 21 flows into the second branch point 72 through the pipe 114 having the expansion valve 15, and at the second branch point 72 described above, the one-way valve It is introduced into the fourth branch point 74 by the pipe 116 having the 63, and through the pipe 109 communicated by the fourth branch point 74 described above to the indoor unit 13 of the cooling and heating system. It flows in and performs cooling.

The refrigerant having been cooled as described above is introduced into the four-way replacement valve 11 through the pipe 110, and the refrigerant introduced into the four-way replacement valve 11 is recovered to the condenser 16 through the pipe 111. The refrigerant recovered by the condenser 10 is re-supplied to the compressor 10 through the pipe 112, and the hot water is connected to the hot water tank 21 according to a necessary use through a pipe not shown. Will be used.

The cooling and hot water cycles as described above are mainly applied in summer, and in summer, the temperature of the water flowing in the corrugated pipe 25 through the circulation pump 51 and the pipes 205 and 206 is maintained because the temperature of the underground is lower than the temperature of the ground. Partially radiated and cooled to the ground, the cooled water is recovered into the geothermal heat exchanger 22, the hot water tank 211 by the circulation pump 52 and the pipes (201, 202) into the water recovered by the geothermal heat exchanger (22) As the hot water is supplied into the geothermal heat exchanger 22, the temperature of the water in the hot water tank 21 is relatively lowered, thereby improving the heating efficiency of the hot water by the condenser coil 31, and the condenser coil 31. In this case, the refrigerant is sufficiently condensed, so that the cooling efficiency by the indoor unit 13 can also be improved.

6 is a schematic diagram of a heat pump system according to the present invention applied to heating and cold water cycles. The high-temperature and high-pressure refrigerant gas discharged from the compressor 10 in a state in which the solenoid valve 42 is closed is connected to the pipe 101 and the first branch point. The high temperature and high pressure refrigerant gas supplied to the four-way replacement valve 11 through the pipe 102 including the 71 and the solenoid valve 41 is supplied to the pipe 110. After the heating is supplied to the indoor unit 13 and heated, the pipe 108 is connected to the pipe 108 having the expansion valve 14 through the pipe 109 connected to the fourth branch 74.

The refrigerant introduced into the pipe 108 having the expansion valve 14 as described above is the cold water tank through the one-way valve 61 and the pipes 107 and 105 communicated by the third and third branch points 73 and 75. (23) flows into the evaporator 33 inside, and primarily cools the water in the cold water tank through the refrigerant pipe 33a in the evaporator 33.

As described above, the refrigerant having cooled the water in the cold water tank 23 is recovered through the pipe 106 to the queue exchanger 12 of the cooling and heating system (in this case, used as the secondary evaporator), and the queue exchanger 12 Refrigerant recovered by) is made of a process of being re-recovered to the condenser 16 through the four-way replacement valve 11 and the pipe 111, and then supplied to the compressor 10 through the pipe 112, cold water tank The cold water tank 23, the geothermal heat exchanger 22 and the corrugated pipe 25 are used by the cold water tank 23 and the pipes 203, 204, 205 and 206 through the unillustrated pipe connected to the pipe 23 as needed. Water is circulated.

When it is difficult to maintain the low temperature (evaporator) at a temperature of 10 ~ 15 ℃ in the operating process of the heating and cold water cycle as described above, during the heating and cold water cycle operation, the outside temperature is relatively high During the time, the geothermal heat recovered through the corrugated pipe 25 to the geothermal heat exchanger 22 is circulated to the cold water tank 23 through the circulation pump 53 and the pipes 203 and 204 and at the same time, the queue recovered through the queue exchanger 12. Is used for the second evaporation of the refrigerant, and during the night time, the heat collected by the geothermal heat exchanger 22 through the corrugated pipe 25 is circulated to the cold water tank 23 through the circulation pump 53 and the pipes 203 and 204. And the low temperature part heat source of the cold water cycle.

In addition, when it is difficult to secure a sufficient heat source only by the queue and geothermal heat, the heat transfer tube 24 installed in the geothermal heat exchanger 22 is heated by using a late-night electric power or a rural fishing village electric power to supplement the low-temperature heat source of the heating and cold water cycle to evaporator 33 It is possible to improve the cooling efficiency of the water by), induces the primary evaporation of the refrigerant in the evaporator 33, and induces the secondary evaporation of the refrigerant in the queue exchanger (12) heating by the indoor unit (13) The efficiency and overall performance of the heat pump system will also be improved.

7 is a system diagram of a heat pump system according to the present invention applied to heating, cooling, and hot water cycles. The high-temperature, high-pressure refrigerant gas discharged from the compressor 10 in a state in which the one-way valve 63 is closed is connected to the pipe 101. The four-way replacement valve 11 and the condenser coil 31 of the hot water tank 21 are supplied through respective pipes 102 and 113 having the first branch point 71 and the solenoid valves 41 and 42.

As described above, the high-temperature, high-pressure refrigerant gas supplied to the four-way valve 11 is heated while passing through the indoor unit 13, and then expands the expansion valve 14 through the pipe 109 connected to the fourth branch 74. The refrigerant flowing into the pipe 108 provided therein, and the refrigerant introduced into the pipe 108, are communicated through the pipes 107 and 105 and the one-way valve 61 communicated by the third and third branch points 73 and 75. It flows into the evaporator 33 inside the cold water tank 23.

In addition, the high-temperature, high-pressure refrigerant gas introduced into the condenser coil 31 in the hot water tank 21 heats the water in the hot water tank 21 and then supplies a pipe 114 having an expansion valve 15. The second branch point 72 is introduced through the second branch point 72, and the third branch point 73 is introduced into the third branch point 73 through the pipe 115 having the one-way valve 62. 73 is introduced into the evaporator 33 inside the cold water tank 23 through the pipes 107 and 105 communicated by the fifth branch point 75 and the one-way valve 61.

The refrigerant introduced into the evaporator 33 through the indoor unit 13 and the condenser coil 31 as described above is primarily inside the primary heat exchange chamber 331 through the refrigerant pipe 33a inside the evaporator 33. After the antifreeze is cooled, the water inside the secondary heat exchange chamber 332 is cooled through the antifreeze pipe 33b through which the antifreeze cooled by the circulation pump 33c flows.

As described above, the refrigerant having cooled the water in the cold water tank 23 is recovered through the pipe 106 to the queue exchanger 12 of the cooling and heating system (in this case, used as the secondary evaporator), and the queue exchanger 12 The refrigerant recovered by) is recycled to the condenser 16 through the four-way replacement valve 11 and the pipe 111, and then supplied to the compressor 10 through the pipe 112, and the hot water tank 21 and the cold water tank 23 is connected to the pipe (not shown) to use the hot water and cold water according to the required use.

If it is difficult to maintain the low temperature (evaporator) at a temperature of 10 ~ 15 ℃ in the operating process of the heating, cold, hot water cycle as described above, the outside temperature is in the process of heating, cold, hot water cycle operation During the day time when the height is relatively high, the heat collected by the geothermal heat exchanger 22 through the corrugated pipe 25 is circulated through the circulation pumps 52, 53 and the pipes 201, 202, 203, 204 to the cold and hot water tanks 21, 23 to heat exchange. At the same time, the queue recovered through the queue exchanger 12 is used for the second evaporation of the refrigerant, and during the night time, the geothermal heat recovered from the corrugated pipe 25 to the geothermal heat exchanger 22 is circulated with the circulation pumps 52 and 53. By circulating the cold and hot water tanks 21 and 23 through the 201, 202, 203 and 204, the low temperature part of the heating and cold and hot water cycles is replenished.

In addition, when it is difficult to secure a sufficient heat source only by using the queue and geothermal heat, the heat transfer tube 24 installed in the geothermal heat exchanger 22 is heated by using midnight electric power or industrial power in rural areas to supplement the low-temperature heat source of heating, cold and hot water cycles. In some cases, the hot water in the hot water tank 21 is directly supplied to the evaporator 33 of the cold water tank 23 through the circulation pumps 52 and 53 and the pipes 201, 202, 203 and 204 to heat the cold part of the cold and hot water cycles. It can be supplemented.

As described above, using a queue, geothermal heat, and late-night electric power to replenish a low-temperature heat source such as an evaporator 33 inside the cold water tank 23, and circulate water by the circulation pump 52 and the pipes 201 and 202 to provide a hot water tank ( The temperature of the water coming into contact with the condenser coil 31 of 21) can be relatively lowered to improve the heating efficiency of the hot water by the capacitor coil 31, thereby increasing the overall thermal efficiency of the heat pump system. The condenser coil 31 and the evaporator 33, which exchange heat with water, are installed in the hot water tank 21 and the cold water tank 23, and the heat transfer area thereof is maximized, thereby contributing to the performance improvement of the heat pump. Is done in a relationship.

As described above, when the heat pump system according to the present invention is applied to a heating cycle (that is, heating and cold water cycle, heating and cold and hot water cycle) in winter, the external temperature in the process of operating the heat pump system During the day time when the temperature becomes relatively high, the geothermal heat exchanger 22 recovers the geothermal heat accumulated in the basement through the corrugated pipe 25 (the temperature of about 12 ° C. is kept below 3m in the winter under subzero weather) and the queue exchanger. (12) to recover the heat scattered in the atmosphere, and during the night time it is difficult to recover the heat from the atmosphere through the corrugated pipe (25) to recover the ground heat accumulated in the underground to the geothermal heat exchanger (22) Evaporator) to cope with lack of heat source.

In addition, when it is difficult to secure a sufficient heat source only by using the queue and geothermal heat, a heat source generated by heating the heat transfer tube 24 installed in the geothermal heat exchanger 22 using cheap midnight power or industrial power in rural areas is used as a low-temperature heat source of the heat pump system. In the heating, cold and hot water cycles, the hot water inside the hot water tank 21 is directly supplied to the evaporator 33 inside the cold water tank 23 as needed, effectively reducing the heat source shortage of the low temperature portion of the heat pump system generated in winter. This can contribute to the overall thermal efficiency and performance of the heat pump system.

In addition, even when the heat pump system according to the present invention is applied to a summer cooling cycle (that is, a cooling and hot water cycle), the temperature of the water flowing through the corrugated pipe 25 through the circulation pump 51 and the pipes 205 and 206. Partially radiated and cooled to the ground, the cooled water is recovered into the geothermal heat exchanger 22, the hot water tank 21 by the circulation pump 52 and the piping (201, 202) into the water recovered by the geothermal heat exchanger (22) By supplying the hot water in the interior of the hot water tank 21, the temperature of the water in contact with the condenser coil 31 is relatively lowered, thereby improving the heating efficiency of the hot water by the condenser coil 31, whereby the hot water tank The refrigerant sufficiently heat exchanged at 21 is evaporated smoothly in the indoor unit 13 so that the cooling efficiency by the indoor unit 13 can also be improved.

In addition, when the heat pump system according to the present invention is applied to a cold / hot water cycle, the condenser coil 31 and the evaporator 33 itself that exchange heat with water are inside the hot water tank 21 and the cold water tank 23. Since the heat transfer area of the condenser coil 31 and the evaporator 33 is maximized, the heat transfer area of the condenser coil 31 and the evaporator 33 may be maximized, compared to the spirally installed externally of the hot water tank 21 and the cold water tank 23. As described above, the geothermal heat exchanger 22 in the form of a pipe may be used instead of the geothermal heat exchanger 22 in the form of a water tank.

As described above, the heat pump system using the queue, the geothermal heat, and the midnight power according to the present invention forms a cold and hot water by installing a condenser coil and an evaporator used in the cold and hot water system of the heat pump in the hot water tank and the cold water tank. By maximizing the heat transfer area of the evaporator and the condenser coil, there is an effect that can contribute to the performance improvement of the heat pump.

In addition, when the heat source of the heat pump is insufficient, such as in winter, it is possible to use the queue and the geothermal heat scattered in the atmosphere and the ground as the low temperature part (evaporator) heat source of the heat pump. If it is not possible, cheap midnight power or industrial power for farming and fishing villages can be used as the heat source of the low temperature part of the heat pump. It is effective to supply energy continuously regardless of season.

Claims (2)

The refrigerant supplied to the queue exchanger (12) or the indoor unit (13) through the solenoid valve (41) and the four-way replacement valve (11) from the compressor (10) for discharging the refrigerant gas of high temperature and high pressure is passed through the expansion valve (14). In the cooling and heating system recovered in (16), The refrigerant introduced into the condenser coil 31 in the hot water tank 21 through the solenoid valve 42 connected to the compressor 10 of the cooling and heating system is the expansion valve 15 and the evaporator inside the cold water tank 23 ( 33) the cooling and hot water system is circulated to the queue exchanger 12 of the cooling and heating system, Piping 105, 115, 116 is provided with a one-way valve (61, 62, 63) to use the queue exchanger (12) of the cooling, heating system and the evaporator (33) of the cooling, hot water system according to the flow of the refrigerant Installed to cross at the second to fifth branch (72, 73, 74, 75), The hot water tank 21 and the cold water tank 23 of the cold and hot water system are connected to the geothermal heat exchanger 22 having the heater 24 therein by the circulation pumps 52 and 53 and the pipes 201, 202, 203 and 204, respectively. Installed, The geothermal heat exchanger (22) is a heat pump system using a queue and geothermal and midnight power, characterized in that installed in connection with the corrugated pipe (25) buried underground by the circulation pump 51 and the pipe (205,206). The evaporator 33 installed in the cold water tank 23 of the cold and hot water system includes a first heat exchange chamber 331 in which a refrigerant pipe 33a through which a refrigerant flows is provided in an antifreeze, and circulates. An antifreeze pipe (33b) in which the antifreeze flows inside the primary heat exchange chamber (331) by the pump (33c) is made of a secondary heat exchange chamber (332), The inlet and outlet sides of the refrigerant pipe 33a are connected to the condenser coil 21a in the hot water tank 21 and the queue exchanger 12 of the cooling and heating system, respectively, and the secondary heat exchange chamber 332 is provided. A heat pump system using a queue, geothermal heat and midnight power, characterized in that it is installed in connection with the geothermal heat exchanger 22 by a pipe (203, 204) having the circulation pump (53).