KR101303576B1 - Soil heating apparatus using remainded Heat of house and heat pump - Google Patents

Soil heating apparatus using remainded Heat of house and heat pump Download PDF

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Publication number
KR101303576B1
KR101303576B1 KR1020110124770A KR20110124770A KR101303576B1 KR 101303576 B1 KR101303576 B1 KR 101303576B1 KR 1020110124770 A KR1020110124770 A KR 1020110124770A KR 20110124770 A KR20110124770 A KR 20110124770A KR 101303576 B1 KR101303576 B1 KR 101303576B1
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South Korea
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heat
house
pump
heating
circulation line
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KR1020110124770A
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Korean (ko)
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KR20130058820A (en
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김재휘
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(주)그린이엔티
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/10—Geothermal energy

Abstract

The present invention relates to an underground heating apparatus using the excess heat and heat pump of the house. The present invention includes a heat pump comprising a compressor, a condenser, an expansion valve, and an evaporator in one cycle so that the refrigerant is compressed and cooled to become a liquid, and then vaporized. A heat storage tank provided at a position spaced apart from the heat pump and spaced apart from the heat pump and connected through a first circulation line to store or circulate the heat medium obtained by the water heat exchange method by the first pump; A house heat exchanger connected to the heat storage tank and spaced apart from the heating and cooling facilities, and connected to the second circulation line to circulate the heat medium in the heat storage tank by the second pump; The second circulation line is provided with a branching line where the heat medium passing through the house heat exchanger is diverted by the first switching valve and branched again, and is buried underground for underground heating of the floor of the air-conditioning facility. It is characterized by comprising;
Therefore, by installing a ground heat exchanger in a line returning from the house heat exchanger to the heat storage tank in the heating system using a heat pump, the heating of the house, which is basically an air-conditioning facility for growing crops, is heated to a temperature suitable for the growth conditions of the crops. When the internal temperature of the house becomes higher than the set temperature due to the solar greenhouse effect during daylight, the house heat exchanger absorbs the excess heat in the house, which is an air-conditioning facility, and heats the heating medium. It can be ground heated (2 ~ 3 ℃) by supplying it to the underground heat exchanger buried in the ground of the house, which enables microorganisms in the soil to be activated and decomposes compost, fertilizer, etc. quickly enough for plants to improve the soil. At the same time, crop yields increase, increasing the amount of daytime solar heat. The excess heat can be stored and used underground, reducing the energy costs of heating the house.

Figure R1020110124770

Description

Soil heating apparatus using remainded Heat of house and heat pump}

The present invention relates to an underground heating apparatus using a surplus heat of a house and a heat pump. More specifically, the house heat exchanger absorbs heat in a house when the indoor temperature of the house becomes higher than a set temperature due to the greenhouse effect of daytime solar heat. Heats the heating medium and supplies the heated heating medium to the underground heat exchanger embedded in the ground in the house and heats the ground (2 ~ 3 ℃) .When the house's room temperature falls below the set temperature, the heat of the heating medium supplied from the heat storage tank It relates to an underground heating apparatus using a heat pump and the excess heat of the house that can perform heating by radiating the heat.

In general, all crop cultivation, including fruits and vegetables, is grown in houses to improve productivity. In order to cultivate crops in the house like this, it is always important to maintain the conditions suitable for the growth conditions of the crops (especially temperature and humidity).

For this reason, a heat pump that cools when the outside temperature is hot and heats when the outside temperature is low is installed and used. The heat pump is basically composed of a compressor, a condenser, an expansion valve, and an evaporator as a normal cooling cycle, and the refrigerant discharged from the compressor in the flow path between the compressor, the condenser, and the evaporator is discharged from the condenser and the evaporator. It may be provided with a four-way valve for switching to either side.

The heat pump is mainly air-cooled when the internal temperature of the heating and cooling facilities above a certain temperature (about 27 ℃) and heating when the internal temperature of the heating and cooling facilities is lower than a predetermined temperature (about 20 ℃), the heat pump It is not an exaggeration to say that the condenser and the evaporator of the water is adopted by storing the heat obtained by heat exchange through the condenser and the evaporator in the heat storage tank and the surplus heat tank and then supplying and circulating the heating and cooling facilities.

In the existing cooling and heating system using the heat pump as described above, cooling and heating are simply performed with heat obtained by exchanging through a condenser and an evaporator, which are heat exchangers of the heat pump itself, or cold water or hot water obtained through a hydrothermal exchange method. Due to the greenhouse effect caused by solar heat, the house is simply exhausted or cooled when the internal temperature of the house is overheated. Therefore, there is no means for utilizing the excess heat of the heating and cooling facilities. There was a problem that the efficiency is reduced and the electrical energy loss is excessively increased.

The present invention has been researched and developed in order to solve all the above-mentioned wastes and problems, by providing a ground heat exchanger in the second circulation line returning from the house heat exchanger to the heat storage tank in the heating system using a heat pump basically produce crops In addition to heating the temperature of the house, which is a heating and heating facility, to a temperature suitable for the growth conditions of the crop, the heat pump is not operated when the internal temperature of the house becomes higher than the set temperature due to the greenhouse effect of solar heat during the daylight. The house heat exchanger heats the heat medium by absorbing excess heat in the house, which is an air-conditioning facility, and supplies the heated heat medium to the underground heat exchanger buried in the house, thereby allowing it to be ground warmed (2 to 3 ℃). Microorganisms are activated and suitable for plants to use compost and fertilizers. It quickly decomposes and improves the soil yield and increases crop yields.The excess heat of daytime solar heat can be stored in the ground and used when the temperature drops, thus reducing the energy cost of heating the house. The present invention provides an underground heating apparatus using surplus heat and a heat pump.

Another object of the present invention is to adopt a condenser as well as a water heat exchange method of the heat pump, but in addition to the house heat exchanger by circulating with the heat source heat exchanger such as geothermal heat, waste heat, heat and waste heat of the power plant as a greenhouse effect by solar heat during the daylight Therefore, if the internal temperature of the house is higher than the set temperature, the excess heat in the house, which is an air conditioning and heating facility, is absorbed for underground heating, and the ground heating using the excess heat of the house and the heat pump to use the heat source heat exchanger as the heat source of the house heat exchanger. To provide a device.

Another object of the present invention is to store the cold and hot water obtained by heat exchange in the condenser as well as the heat pump heat exchange method of the heat pump in the excess heat and heat storage tank and circulate the hot water and cold water of the heat storage and excess heat tank to the heating and heating facility In addition, by utilizing the surplus heat tank as an excellent tank to receive rainwater, when the temperature of the air conditioning facilities rises above the set temperature during daylight, the heat medium of the surplus heat tank is circulated to cool and at the same time, the excess heat of the air conditioning facilities The excess heat can be used for underground heating, and the water temperature of the excess heat tank can be maintained and stored at 10 ~ 30 ℃ at all times and then supplied to the evaporator of the heat pump to improve the operation efficiency of the heat pump and Underground heating system using surplus heat and heat pump of a house to save electric energy used for operation To provide for.

The present invention for achieving the above object is a heat pump comprising a compressor, a condenser, an expansion valve and an evaporator constitute a cycle so that the process of the refrigerant is compressed and cooled to become a liquid and then vaporized; A heat storage tank provided at a position spaced apart from the heat pump and spaced apart from the heat pump and connected through a first circulation line to store or circulate the heat medium obtained by the water heat exchange method by the first pump; A house heat exchanger connected to the heat storage tank and spaced apart from the heating and cooling facilities, and connected to the second circulation line to circulate the heat medium in the heat storage tank by the second pump; The second circulation line is provided with a branching line where the heat medium passing through the house heat exchanger is diverted by the first switching valve and branched again, and is buried underground for underground heating of the floor of the air-conditioning facility. ; And the like.

The evaporator of the heat pump is also connected through a third circulation line to circulate the heat medium obtained by the water heat exchange method by a third pump, and a heat source heat exchanger capable of utilizing geothermal heat, waste heat, or hot / exhaust heat of a power plant as a heat source of the heat pump. The third circulation line is characterized in that the connection line branched through the second and third switching valve is connected to the second circulation line so as to circulate through the heat source heat exchanger in the house heat exchanger on the second circulation line.

In addition, the third circulation line may be provided with each on-off valve so that the heat medium does not flow into the heat source heat exchanger.

When the heat source heat exchanger uses the underground air of the porous rock layer, the underground air blower tube including a blower fan is embedded to flow the static underground air filled in the pores of the porous rock layer so that the heat exchange is performed well.

The third circulation line is provided with an excess heat tank capable of storing or circulating the heat medium, which is cold water obtained by the hydrothermal exchange method in the evaporator of the heat pump, and the excess heat in the third circulation line between the excess heat tank and the heat source heat exchanger. A fourth pump may be provided to circulate the heat medium in the tank with the heat source heat exchanger.

It is characterized in that the rainwater line is connected to the excess heat tank from the roof of the cooling and heating facility to guide and store the rain falling on the cooling and heating facility.

The present invention basically provides the underground heat exchanger in a line returning from the house heat exchanger to the heat storage tank in the heating system using a heat pump, thereby basically heating the temperature of the house, which is an air-conditioning facility that grows crops, to a temperature suitable for the growth conditions of the crops. Of course, if the internal temperature of the house is higher than the set temperature due to the solar greenhouse effect during the daytime sunshine, the house heat exchanger absorbs the excess heat in the house, which is a heating / heating facility, without heating the heat pump to heat the heating medium. The heat medium can be supplied to the ground heat exchanger buried in the house and heated to ground (2 ~ 3 ℃), which activates microorganisms in the soil and decomposes compost and fertilizers quickly enough for plants to use. The better the crop yield, the better the daytime Excess heat can be stored and used underground, which has a useful effect to reduce the energy cost of heating the house.

In addition, the present invention adopts a condenser as well as a water heat exchange method of the heat pump, but in addition to the house heat exchanger, the heat source heat exchanger such as geothermal heat, waste heat, heat and waste heat of the power plant is circulated to provide a greenhouse effect due to solar heat during the daylight When the internal temperature of the house is higher than the set temperature, it absorbs the excess heat in the house, which is an air conditioning and heating facility, and utilizes it for underground heating.

In addition, the present invention stores the cold and hot water obtained by heat exchange in the condenser as well as the heat pump heat exchange method of the heat pump in the excess heat and heat storage tank and circulates the hot and cold water of the heat storage and excess heat tank to the heating and heating facility, In addition, by utilizing the surplus heat tank as an excellent tank to receive rainwater, when the temperature of the air conditioning facilities rises above the set temperature during daylight, the heat medium of the surplus heat tank is circulated to recover the cooling and surplus heat of the air conditioning facilities at the same time. This surplus heat can be used for underground heating, and the water temperature of the surplus heat tank can be maintained at 10 ~ 30 ℃ at all times and then supplied to the evaporator of the heat pump to improve the operation efficiency of the hip pump and to operate the heat pump. It has a useful effect, such as saving the electrical energy used.

1 is a view showing an underground heating apparatus using the excess heat and heat pump of the house according to an embodiment of the present invention.
Figure 2 is a view showing the ground heating apparatus using the excess heat and heat pump of the house according to another embodiment of the present invention.
Figure 3 is a view showing the ground-heating apparatus using the excess heat and heat pump of the house according to another embodiment according to the present invention.
Figure 4 is a view showing the ground-heating apparatus using the excess heat and heat pump of the house according to another embodiment according to the present invention.

Hereinafter, the ground heating apparatus using the excess heat and the heat pump of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the ground heating apparatus of the present invention includes a heat pump 10 for obtaining hot water, a heat storage tank 20 for storing a heat medium of hot water obtained by the heat pump 10, and the heat storage tank ( It is configured to include a house heat exchanger (40) for supplying the heating medium which is hot water stored in the 20 to the air-conditioning facility (30) to perform the cooling and heating.

The heat pump 10 is a compressor, a condenser, an expansion valve and an evaporator are configured in one cycle so that the refrigerant is compressed and cooled to become a liquid and then evaporated continuously. Description is omitted. Here, the condenser is provided to obtain a heat medium that is hot water by heat dissipation by a water heat exchange method of heat exchange with water, and the evaporator is provided to endotherm by a heat exchange method of heat exchange with air.

The heat storage tank 20 is provided at a position spaced apart from the heat pump 10 at a predetermined distance, it is sufficient to be able to store the heat medium which is hot water obtained by the hydrothermal exchange method in the condenser. The outer surface of the heat storage tank 20 is preferably provided with a heat insulating material so that the insulation and heat insulation. The heat storage tank 20 and the condenser 12 store the hot water obtained through the condenser 12 as the heat storage tank 20 by the first pump 22 or circulate the hot water in the heat storage tank 20 through the condenser. The first circulation line 21 is connected to enable.

The house heat exchanger 40 is provided in the house 30 which is an air conditioning and heating facility spaced apart from the heat storage tank 20, and circulates the hot water in the heat storage tank 20 by the second pump 42. It is connected to the second circulation line 41 to radiate warmth. The house heat exchanger 40 is sufficient that the fan coil unit or air conditioner that can radiate cold or warm air to the fan when the hot water of the heat storage tank 20 passes through the house heat exchanger (40).

The second circulation line 41 is provided with a branch line 44 in which the heat medium passing through the house heat exchanger 40 is diverted by the first switching valve 43 and branched again to meet. There is an underground heating heat exchanger (45) buried in the ground for underground heating of the floor of the air conditioning and heating facilities. The geothermal heat exchanger 45 is preferably buried in a depth of 5 ~ 100 cm on the ground surface between the crops so as not to adversely affect the roots of the crops grown in the house 30, which is an air conditioning and heating facility.

Underground heating apparatus using the excess heat and heat pump of the house according to the present invention configured as described above is the heat pump 10 is operated when the temperature in the house 30 falls below the lowest set temperature (for example, 20 ℃) When the heat pump 10 starts to operate as described above, since the first pump 22 on the first circulation line 21 is also operated, the heat medium, which is hot water obtained by hydrothermal exchange with the condenser of the heat pump 10, is stored in the heat storage tank 20. Will be saved. The heat medium of the heat storage tank 20 is sucked by the first pump 22 and passes through the condenser when flowing along the first circulation line 21 to be hot water (45-50 ° C.), and the warm water thus heated is stored in the heat storage tank. (20) Since the water is circulated continuously continuously, the water in the heat storage tank 20 becomes hot water (about 50 ° C).

At the same time, when the second pump 42 installed in the second circulation line 41 is operated, the hot water in the upper portion of the heat storage tank 20 is sucked through the second circulation line 41 to be supplied to the house heat exchanger 40. The house heat exchanger 40 is returned to the lower portion of the heat storage tank 20 through the second circulation line 41. As the process of returning from the heat storage tank 20 back to the heat storage tank 20 through the second circulation line 41 continues to be circulated, heat is emitted from the house heat exchanger 40 in the air conditioning and heating facility 30. So heating (20 ~ 25 ℃) is made.

Since the hot water is dropped to the lower temperature of the heat storage tank 20 is supplied to the lower portion of the heat storage tank 20, the temperature is lower than the upper portion, which is the same as the natural convection phenomenon, so the water above and below the heat storage tank 20 does not flow. .

Therefore, since the hot water of the upper part of the heat storage tank 20 is supplied and sucked through the first and second circulation lines 21 and 41, the fluid flow can be stabilized as if natural convection occurred. As a result, the heat loss of the heating can be minimized and efficient heating can be achieved.

When the house heating temperature is reached while the house heating is performed as described above, the heat pump 10 is stopped and the first and second pumps 22 and 42 on the first and second circulation lines 21 and 41 are also stopped. Although maintained, the second pump 42 of the second circulation line 41 may be operated to circulate the heat medium, which is hot water of the heat storage tank 20, to perform heating.

When the internal temperature of the house 30 becomes higher than the set temperature (for example, 29 ° C.) due to the greenhouse effect of solar heat during the daytime sun in the state of heating is stopped, the heat pump 10 is not operated. The second pump 42 on the second circulation line 41 is operated, and at the same time, the first switching valve 43 is switched so that the heat medium flowing along the second circulation line 41 flows to the branch line 44. 45 is entered into the heat storage tank (20).

At this time, the ground surface of the bottom of the house 30 is similar to the internal temperature of the house, but the ground below the ground surface is lower than the temperature inside the house 30 to heat the heat possessed by the heat medium from the ground heat exchanger 45 passing through the ground. It becomes the heat medium of the lowered temperature to enter the heat storage tank (20).

As this process continues, the house heat exchanger 40 absorbs excess heat in the house 30, which is an air conditioning and heating facility, and heats the heat medium. The heated heat medium is a ground heat exchanger 45 embedded in the ground in the house 30. It is possible to warm the ground's temperature by 2 ~ 3 ℃ by supplying it to the heat source.

When the ground temperature of the house 30 is heated above 2 ~ 3 ℃, microorganisms in the soil are activated to decompose compost, fertilizer, etc. quickly enough for the plant to use, thereby improving soil and increasing crop yield. An increase is made.

In addition, since the excess heat generated in the solar heat during the daytime sunlight can be stored and used in the ground through the underground heat exchanger 45 of the underground will be able to reduce the energy costs used for the heating of the house (30).

Even when the excess heat generated by solar heat is stored in the ground, when the internal temperature of the house 30 becomes higher than the maximum set temperature (for example, 31 ° C.) due to the greenhouse effect of the house 30, the exhaust fan is temporarily turned off. By operating it is adjusted to lower the internal temperature of the house (30).

Figure 2 is a view showing the ground heating apparatus using the excess heat and heat pump of the house according to another embodiment of the present invention. Here, the condenser of the heat pump 10 as well as the evaporator is also provided for heat exchange in a water heat exchange method, but the third circulation line 51 to circulate by the third pump 52, the heat medium is heat exchanged with the evaporator Is connected to the third circulation line 51 is provided with a heat source heat exchanger 50 that can be utilized as a heat source of the heat pump 10, the third circulation line 51 on the second circulation line (41) A connection line 55 branching through the second and third switching valves 53 and 54 to be circulated through the heat source heat exchanger 50 in the house heat exchanger 40 is connected to the second circulation line 41. .

The heat source heat exchanger 50 may be any heat source as long as it can be used as a heat source of the heat pump 10. For example, the heat source heat exchanger 50 is a heat exchanger that can utilize geothermal heat, waste heat, or hot / cold heat of a power plant.

In addition, the third circulation line 51 may be provided with an open / close valve 56 to prevent the heat medium from flowing into the heat source heat exchanger 50.

When the heat source heat exchanger 50 uses underground air of the porous rock layer, the underground air blower tube 57 includes a blower fan 58 so that heat exchange is performed by flowing static underground air filled in the pores of the porous rock layer. This may be buried.

In another embodiment of the present invention configured as described above, the heating process is the same as described in the above example, but the heat source for heat exchange with the evaporator of the heat pump 10 is circulated by the third pump 52. Only the heat medium flowing along the line 51 is supplied from the heat source exchanger 50.

When the heat pump 10 is stopped in this manner, when the internal temperature of the house 30 becomes higher than the set temperature (for example, 29 ° C.) due to the greenhouse effect caused by solar heat during the daytime when the heat pump 10 is stopped, the heat pump 10 The first to third switching valves (43, 53, 54) are switched and the on-off valve (56) is opened without being activated. In this state, since the second pump 42 on the second circulation line 41 is operated, the heat medium flowing along the second circulation line 41 is transferred to the house heat exchanger 40 and the underground heat exchanger on the branch line 44. 45), the connection line 55, the heat source exchanger 50 on the third circulation line 51, and the connection line 55 are circulated along the second circulation line 41 again.

As described above, the process of circulating through the underground heat exchanger 45 on the branch line 44 is continuously performed, and the house heat exchanger 40 absorbs excess heat in the house 30, which is an air conditioning and heating facility, thereby heating the heat medium. The heated heat medium is supplied to the heat source of the underground heat exchanger 45 embedded in the ground in the house 30 so that the ground temperature can be heated to 2 to 3 ° C or more.

In addition, when cooling is required in the heat of the hot weather, the low temperature heat medium obtained by the heat exchange with the evaporator is housed as a heating / heating facility through the third circulation line 51, the connection line 55, and the second circulation line 41. Heat dissipation in the house heat exchanger (40), that is, endotherm, and the heat medium raised by the endotherm is heat pump (10) through the second circulation line (41), the connection line (55) and the third circulation line (51). Cooling may be performed by circulating to the evaporator side. At this time, the heat medium flowing through the third circulation line 51 while passing through the evaporator of the heat pump 10 becomes 10 to 15 ° C. and is continuously circulated and supplied, and as the process continues, the house 30 is a heating / heating facility. The inside is cooled to a predetermined temperature.

As described above, when the internal temperature of the house 30 becomes higher than the set temperature due to the greenhouse effect of solar heat during the daytime sunlight, it absorbs the excess heat in the house 30, which is an air conditioning and heating facility, and utilizes it for underground heating. The heat source heat exchanger 50 can be used as the heat source of 40).

Figure 3 is a view showing the ground-heating apparatus using the excess heat and heat pump of the house according to another embodiment according to the present invention. Here, the heat medium, which is cold water obtained by the hydrothermal exchange method in the evaporator of the heat pump 10, is stored between the third pump line 52 and the third circulation line 51 where the connection line 55 meets the configuration of FIG. 2. An excess heat tank 60 capable of circulating is provided, and in the third circulation line 51 between the excess heat tank 60 and the heat source heat exchanger 50, the heat medium of the excess heat tank 60 is transferred to the heat source heat exchanger. The 4th pump 62 is provided so that it may also circulate with 50. As shown in FIG.

In another embodiment of the present invention configured as described above, since the process of heating and cooling is the same as described in the above example, detailed description thereof is omitted. The only difference is that the heat source for the evaporator of the heat pump 10 is received from the surplus heat tank 60, and the heat source for the house heat exchanger 40 during cooling of the house 30, which is an air conditioning and heating facility, is surplus heat tank 60. The heat source for the surplus heat tank 60 is supplied from the heat source exchanger 50 through the heat medium circulated along the third circulation line 51 by the fourth pump 62.

While performing the heating and cooling as described above, if the internal temperature of the house 30 is higher than the set temperature (for example, 29 ℃) due to the greenhouse effect of solar heat during the daylight in the state in which the heat pump 10 is stopped, the heat pump ( The first to third switching valves 43, 53 and 54 are switched without the operation 10). In this state, since the second pump 42 on the second circulation line 41 is operated, the heat medium of the surplus heat tank 60 flows through the connection line 55 and the second circulation line 41, but the house heat exchanger 40, the underground heat exchanger 45 on the branch line 44, the connecting line 55, the surplus heat tank 60 on the third circulation line 51, the second circulation line via the connecting line 55 ( 41) to be continuously circulated.

At this time, when the thermal medium temperature of the surplus heat tank 60 becomes higher than the set temperature (for example, 30 ° C.), the fourth pump 62 on the third circulation line 51 is operated and the fourth pump 62 is operated. As it is operated, the heat medium of the excess heat tank 60 is sucked back to the excess heat tank 60 through the heat source heat exchanger 50 to be continuously circulated.

As such, the heat medium of the surplus heat tank 60 is dissipated while passing through the heat source exchanger 50 on the third circulation line 51 and then lowered to some extent and then returned to the surplus heat tank 60. In accordance with the surplus heat tank 60 is maintained at a predetermined temperature.

Figure 4 is a view showing the ground-heating apparatus using the excess heat and heat pump of the house according to another embodiment according to the present invention. Here, in addition to the configuration of FIG. 3, the excess heat tank 60 from the roof of the air-conditioning house 30 to guide and store rain water (excellent) falling on the roof of the air-conditioning house 30 to the excess heat tank 60. ), The storm line 64 is further connected.

In another embodiment of the present invention configured as described above, the cooling and heating as well as the process of ground heating is also the same as the operation of Figure 3, so the detailed description is omitted, drip tray provided on the roof of the house 30 is a heating and heating facility when raining Rainwater (excellent) collected through the supply line to the surplus heat tank 60 through the rain line 64 is different from that can be utilized as rainwater collector or rainwater storage tank.

The rainwater supplied to the surplus heat tank 60 is different depending on the season, but the temperature is higher than the heat medium (about 10 ° C.) in the surplus heat tank 60 except in winter, so the heat exchange with the evaporator of the heat pump 10 It can be used as a heat source for.

The present invention is carried out in the heating and cooling system of the air-conditioning facilities for cultivating crops to perform heating and cooling with hot and cold water heating medium obtained by the water heat exchange through the condenser and the evaporator of the heat pump, which is generated due to the greenhouse effect of solar heat during the day In addition to utilizing excess heat in the ground heating of the house floor, rainwater (excellent) can be useful in the field to use as a heat source for heat exchange with the evaporator of the heat pump.

10: heat pump 20: heat storage tank
21: first circulation line 22: first pump
30: house 40: house heat exchanger
41: second circulation line 42: second pump
43: first switching valve 44: branch line
45: underground heat exchanger 50: heat source exchanger
51: third circulation line 52: third pump
53: second switching valve 54: third switching valve
55: connection line 56: on-off valve
57: underground air blowing pipe 58: blowing fan
60: surplus heat tank 62: fourth pump
64: storm line

Claims (5)

A heat pump comprising a compressor, a condenser, an expansion valve, and an evaporator in one cycle so that the refrigerant is compressed, cooled, and then vaporized into a liquid; A heat storage tank provided at a position spaced apart from the heat pump and spaced apart from the heat pump and connected through a first circulation line to store or circulate the heat medium obtained by the water heat exchange method by the first pump; A house heat exchanger connected to the heat storage tank and spaced apart from the heating and cooling facilities, and connected to the second circulation line to circulate the heat medium in the heat storage tank by the second pump; The second circulation line is provided with a branching line where the heat medium passing through the house heat exchanger is diverted by the first switching valve and branched again, and is buried underground for underground heating of the floor of the air-conditioning facility. ; Is comprised of
The evaporator of the heat pump is also connected to a third circulation line to circulate the heat medium obtained by the water heat exchange method by the third pump, and heat source heat exchange which can utilize geothermal heat, waste heat or the heat and waste heat of the power plant as a heat source of the heat pump. The third circulation line is characterized in that the connection line branched through the second and third switching valve is connected to the second circulation line so as to circulate through the heat source heat exchanger in the house heat exchanger on the second circulation line. Underground heating device using surplus heat of house and heat pump. delete The method of claim 1,
When the heat source heat exchanger uses the underground air of the porous rock layer, the surplus of the house, characterized in that the underground air blower tube including a blower fan is embedded to flow the static underground air filled in the pores of the porous rock layer to facilitate heat exchange. Underground heating device using heat and heat pump. The method of claim 1,
The third circulation line is provided with an excess heat tank capable of storing or circulating the heat medium, which is cold water obtained by the hydrothermal exchange method in the evaporator of the heat pump, and the excess heat in the third circulation line between the excess heat tank and the heat source heat exchanger. Ground heating apparatus using the excess heat and heat pump of the house, characterized in that the fourth pump is provided to circulate the heat medium of the tank with the heat source heat exchanger. 5. The method of claim 4,
Underground heating apparatus using excess heat and heat pump of the house, characterized in that the rainwater line is connected from the roof of the cooling and heating facility to the excess heat tank to guide and store the rain falling on the cooling and heating facility.
KR1020110124770A 2011-11-28 2011-11-28 Soil heating apparatus using remainded Heat of house and heat pump KR101303576B1 (en)

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