KR101795668B1 - Regenerative heat pump system converged new renewable energy - Google Patents

Abstract

The present invention relates to a new renewable energy converged-regenerative heat pump system. According to an embodiment of the present invention, the new renewable energy converged-regenerative heat pump system comprises: at least one underground heat exchanger buried under the ground and performing heat exchange between a heat exchange fluid and the underground; a heat storage tank storing the heat exchange fluid that has undergone heat exchange in the underground heat exchanger; a heat pump for supplying hot water, which stores the heat exchange fluid supplied from the underground heat exchanger or the heat storage tank and heating or cooling the stored heat exchange fluid; a hot water supply heat tank storing hot water to undergo heat exchange with the heat exchange fluid stored in the heat pump for supplying hot water; an air conditioning-heat pump storing the heat exchange fluid supplied from the underground heat exchanger or the heat storage tank; an air conditioning load allowing movement of a refrigerant undergone heat exchange with the heat exchange fluid stored in the air conditioning-heat pump; a thermoelectric element part generating or absorbing heat to heat or cool the heat exchange fluid stored in the heat storage tank; a new renewable energy facility producing energy supplied to the hot water supply heat pump or the thermoelectric element part; a control part performing a control operation such that the energy generated from the new renewable energy facility is selectively supplied to the thermoelectric element part and the hot water supply heat pump in accordance with the amount of energy produced by the renewable energy facility.

Description

REGENERATIVE HEAT PUMP SYSTEM CONVERGED NEW RENEWABLE ENERGY

The present invention relates to a renewable energy hybrid thermal storage heat pump system.

In the underground heat exchanger, the heat exchange fluid such as the ground water that is buried in the ground and flows inside thereof is exchanged with the earth. In the prior patent document (Korean Patent Registration No. 0989992), a heat pump system including an underground heat exchanger is disclosed. In the related art, there has been conventionally known a method in which a plurality of groundwater conduits (SC), that is, groundwater flowing between an underground heat exchanger and a second heat exchanger 10, groundwater flowing between a second heat exchanger 10 and a heat pump HP Heat exchange occurs between circulating refrigerants.

On the other hand, with increasing interest in energy efficiency and the environment, facilities for the production of new and renewable energy such as solar power and solar power are installed in general houses and factories. Typically, energy suppliers purchase a certain amount of energy from renewable energy production facilities. For example, KEPCO purchases about 10KW of energy per renewable energy production facility. Therefore, in the case of extra energy remaining after the use and sale of the energy produced by the renewable energy production facility, there is a fear that it can not be utilized and it is extinguished except for the case where the facility for separate storage is provided.

Korean Patent Registration No. 0989992 (Title of the Invention: Operation Control Method of Geothermal Source Heat Pump System Using a Number of Underground Heat Exchangers) Korean Patent Registration No. 1519340 (entitled Heat Storage Heat Pump System Including an Underground Heat Exchanger)

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems of the prior art and it is an object of the present invention to provide a new and renewable energy hybrid regenerative heat pump system configured to use energy generated from a renewable energy facility more efficiently, .

According to an aspect of the present invention, there is provided a heat pump system for a combined heat accumulation type renewable energy combined heat regenerator, comprising: at least one underground heat exchanger buried in the earth and performing heat exchange between the heat exchange fluid and the earth; A heat storage tank in which the heat exchange fluid heat-exchanged in the underground heat exchanger is stored; A heat pump for hot water storage for storing the heat exchange fluid supplied from the underground heat exchanger or the heat storage tank and heating or cooling the stored heat exchange fluid; A hot water tank in which hot water to be heat-exchanged with the heat exchange fluid stored in the hot water supply heat pump is stored; A heat pump for air conditioning in which the heat exchange fluid supplied from the underground heat exchanger or the heat storage tank is stored; An air conditioning load in which a refrigerant to be heat-exchanged with a heat exchange fluid stored in the air conditioning bottom pump flows; A thermoelectric element for heating or absorbing heat to heat or cool the heat exchange fluid stored in the heat storage tank; A renewable energy facility for producing energy supplied to the hot water heat pump or the thermoelectric element unit; A control unit for controlling the energy generated by the renewable energy facility to be selectively supplied to the thermoelectric element and the hot water heat pump according to the amount of energy produced in the new and renewable energy facility; .

In an aspect of the embodiment of the present invention, when the amount of energy produced in the renewable energy facility is equal to or greater than a preset energy amount set to a value exceeding a predetermined reference energy amount, When the amount of energy produced by the renewable energy facility is less than the reference energy amount and less than the preset energy amount, , So that excess energy exceeding the reference energy amount among the energy produced by the renewable energy facility is supplied to the thermoelectric element unit.

In one aspect of the embodiment of the present invention, the control unit controls the supply of the heat-exchange fluid heated or cooled by the energy supplied from the renewable energy facility to the hot water supply heat pump sequentially to the hot water tank, the heat storage tank and the underground heat exchanger Respectively.

In one aspect of the embodiment of the present invention, the control unit controls the energy supplied from the renewable energy facility to the hot water heat pump until the temperature of the hot water stored in the hot water tank reaches a predetermined first reference temperature For controlling the operation of the first pump for circulating the heat exchange fluid heated by the hot water supply heat pump and the hot water tank when the temperature of the hot water stored in the hot water tank reaches the first reference temperature, The pump is stopped and the heat exchange fluid heated or cooled by the energy supplied from the renewable energy facility to the hot water heat pump until the temperature of the heat exchange fluid stored in the heat storage tank reaches a predetermined second reference temperature And a second pump for circulating the heat pump between the hot water heat pump and the heat accumulation tank, When the temperature of the exchange fluid reaches the second reference temperature, the second pump is stopped, and the temperature of the heat exchange fluid circulating through the heat accumulation tank and the underground heat exchanger reaches a predetermined third reference temperature, A third pump for circulating the heat exchange fluid heated or cooled by the energy supplied to the hot water supply heat pump from the regeneration energy facility between the underground heat exchanger and the heat storage tank is operated.

In an aspect of the embodiment of the present invention, when the amount of energy produced in the renewable energy facility is greater than the reference energy amount and less than the preset energy amount, the control unit may supply the renewable energy facility to the thermoelectric element unit The heat exchange fluid stored in the heat storage tank is heated or cooled by the energy.

Another aspect of an embodiment of the present invention is directed to a heat exchanger comprising: at least one underground heat exchanger buried in the earth to effect heat exchange between the heat exchange fluid and the earth; A heat storage tank in which the heat exchange fluid heat-exchanged in the underground heat exchanger is stored; A heat pump for hot water supply in which the heat exchange fluid supplied from the underground heat exchanger or the heat storage tank is stored; A hot water tank in which hot water to be heat-exchanged with the heat exchange fluid stored in the hot water supply heat pump is stored; A thermoelectric element part for heating or cooling the heat exchange fluid stored in the hot water heat pump by selectively receiving energy from a renewable energy facility and generating heat or absorbing heat; A first pump circulating a heat exchange fluid between the hot water heat pump and the hot water tank; A second pump circulating a heat exchange fluid between the heat storage tank and the heat pump for hot water supply; A third pump circulating a heat exchange fluid between the underground heat exchanger and the heat storage tank; And a part of the energy produced by the renewable energy facility is supplied to the hot water heat pump according to the amount of energy produced in the renewable energy facility so that heat exchange fluid heated or cooled in the hot water heat pump is supplied to the hot water tank , The regeneration tank and the underground heat exchanger, or a part of the energy produced by the renewable energy facility is supplied to the thermoelectric element portion so that the heat exchange fluid stored in the hot water tank is heated Or to be cooled; .

In another aspect of the embodiment of the present invention, when the amount of energy produced in the renewable energy facility is equal to or greater than a preset energy amount set to a value exceeding a preset reference energy amount, Controls the operation of the first pump so that the heat exchange fluid heated by the hot water supply heat pump is circulated between the hot water supply heat pump and the hot water supply tank until the temperature of the hot water supply heat pump reaches the predetermined first reference temperature, Wherein when the temperature of the hot water stored in the hot water tank reaches the first reference temperature, the temperature of the hot water stored in the hot water tank and the heat storage tank is increased until the temperature of the heat exchange fluid stored in the heat storage tank reaches a predetermined second reference temperature Controls the operation of the second pump so that the heat-exchange fluid heated or cooled in the heat-pump-use heat pump is circulated, and the heat- Exchanging fluid between the underground heat exchanger and the heat storage tank until the temperature of the heat-exchange fluid circulating through the heat storage tank and the underground heat exchanger reaches a predetermined third reference temperature, when the temperature of the stored heat exchange fluid reaches the second reference temperature. The operation of the third pump is controlled so that the heat-exchange fluid heated or cooled in the heat-pump-use heat pump is circulated.

In the renewable energy hybrid thermal storage type heat pump system according to the embodiment of the present invention, extra energy is stored in the order of the hot water tank, the heat storage tank, and the ground. Therefore, according to the embodiment of the present invention, it is possible to expect the effect that the energy produced in the renewable energy facility can be used more economically and efficiently.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a new-energy-energy hybrid regenerative heat pump system according to an embodiment of the present invention; FIG.
FIG. 2 to FIG. 5 are fluid flow charts showing the flow of fluid in the combined-cycle regenerative energy hybrid regenerative heat pump system according to the embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the structure of a new and renewable energy hybrid regenerative heat pump system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a new and renewable energy hybrid regenerative heat pump system according to an embodiment of the present invention; FIG.

1, the renewable energy hybrid thermal storage type heat pump system according to the present embodiment includes at least one underground heat exchanger 100, a heat storage tank 200, a heat pump 300 for hot water supply, a hot water tank 400 An air conditioning heavy pump 500, an air conditioning load 600, a thermoelectric element 700, a renewable energy facility 800, and a control unit 900. Particularly, in the present embodiment, a part of the energy produced by the renewable energy facility 800 is supplied to the hot water heat pump 300 or the thermoelectric device 800 according to the amount of energy produced by the renewable energy facility 800. [ (700).

More specifically, the underground heat exchanger (100) is a place where the heat exchange fluid is buried in the earth corresponding to the outside of the building and the heat exchange is performed between the earth and the earth. In FIG. 1, the underground heat exchanger 100 is shown as a plurality of sub-units, but the sub-unit heat exchanger 100 may be formed as one sub-unit.

The heat storage tank 200 is a place where the heat exchange fluid heat-exchanged in the underground heat exchanger 100 is stored. For example, the heat storage tank 200 may be installed inside a building such as a machine room.

The hot water supply heat pump 300 receives the heat exchange fluid from the underground heat exchanger 100 or the heat storage tank 200. The hot water supply heat pump 300 heats the stored heat exchange fluid and supplies the heated heat exchange fluid to the hot water tank 400 or to the heat storage tank 200 by heating or cooling. In the present embodiment, the hot water heat pump 300 operates by receiving energy from the renewable energy facility 800 as well as general commercial power.

The hot water for hot water is stored in the hot water tank 400. The hot water stored in the hot water tank 400 is heat-exchanged with the heat-exchanging fluid heated by the hot water heat pump 300, and is then hot-watered.

In addition, the air conditioning heavy pump 500 receives the heat exchange fluid from the underground heat exchanger 100 or the heat storage tank 200. The heat-exchanging fluid stored in the air-conditioning sub-pump (500) is heat-exchanged with the refrigerant circulating through the air-conditioning load (600).

The air conditioning load 600 is for air conditioning such as cooling and heating for the internal space of a building and is generally understood as an indoor heat exchanger 10 and / or an outdoor heat exchanger 20 constituting a cooling cycle . The air conditioning load 600 can also be installed inside a building such as a machine room, like the thermal storage tank 200.

On the other hand, the thermoelectric element 700 receives energy from the renewable energy facility 800 to heat or cool the heat exchange fluid stored in the heat pump 300 for hot water supply. The thermoelectric element 700 can heat or cool the heat exchange fluid stored in the heat pump 300 for heat absorption.

The renewable energy facility 800 can produce energy in a generally known manner such as solar power generation, solar power generation, wind power generation, and the like. The energy generated by the renewable energy facility 800 may be used for the operation of a load such as a building in which a regenerative heat pump system is installed, or a certain amount may be sold to an energy company such as KEPCO.

The control unit 900 controls a part of the energy generated in the renewable energy facility 800 according to the amount of energy generated in the renewable energy facility 800 by the heat pump 300 or the thermoelectric device (700). That is, the control unit 900 may supply excess energy exceeding a preset reference energy amount of the energy generated by the renewable energy facility 800 to the hot water heat pump 300 or the thermoelectric element unit 700, . Here, the 'reference energy amount' can be understood as the sum of the load on which the energy produced by the renewable energy facility 800 is supplied and the amount of sales that can be sold or licensed to the energy company.

More specifically, when the amount of energy produced by the renewable energy facility 800 is equal to or greater than a predetermined energy amount set to a value exceeding a preset reference energy amount, the controller 900 controls the renewable energy facility So that excess energy exceeding the reference energy amount is supplied to the heat pump 300 for hot water supply. Here, the 'set energy amount' can be understood as a sum of the reference energy amount and the minimum energy amount required for operation of the hot water supply heat pump 300. When the amount of energy produced by the renewable energy facility 800 is greater than the reference energy amount and less than the predetermined energy amount, the control unit 900 controls the energy of the renewable energy facility 800, It is possible to control so that excess energy exceeding the reference energy amount is supplied to the thermoelectric element unit 700. [ In summary, in the present embodiment, the control unit 900 determines that the excess energy exceeding the reference energy amount among the energy produced by the renewable energy facility 800 is generated by the operation of the hot water heat pump 300 If the amount of energy is as much as possible, extra energy is supplied to the hot water supply heat pump 300. The controller 900 controls the controller 900 such that the excess energy exceeding the reference energy amount of the energy generated by the renewable energy facility 800 can be supplied to the heat pump 300 The excess energy is supplied to the thermoelectric element portion 700. In this case,

When the extra energy produced by the renewable energy facility 800 is supplied to the hot water supply heat pump 300, the controller 900 controls the heating / Exchanging fluid is supplied to any one of the hot water tank 400, the heat accumulation tank 200, and the underground heat exchanger 100. At this time, the controller 900 controls the temperature of the hot-water tank 400, the hot-water tank 300, and the hot- The heat storage tank 200 and the underground heat exchanger 100 in this order.

More specifically, the control unit 900 controls the temperature of the hot water in the hot water tank 400 until the temperature of the hot water stored in the hot water tank 400 sensed by the first temperature sensor S1 reaches a predetermined first reference temperature The first pump P1 for circulating the heat exchange fluid between the heat pump 300 and the hot water tank 400 is controlled to operate. That is, the control unit 900 controls the energy generated by the renewable energy facility 800 until the temperature of the hot water stored in the hot water tank 400 reaches the first reference temperature, And is supplied from the pump 300 to the hot water tank 400. A heat exchange fluid heated by the hot water supply heat pump 300 may be supplied to the hot water tank 400 to supply hot water irrespective of the season.

The control unit 900 controls the first pump P1 to stop when the temperature of the hot water stored in the hot water tank 400 reaches the first reference temperature. When the temperature of the hot water stored in the hot water tank 400 reaches the first reference temperature, the control unit 900 controls the heat exchange fluid stored in the heat storage tank 200 sensed by the second temperature sensor S2, The second pump P2 for circulating the heat exchange fluid between the hot water heat pump 300 and the heat accumulation tank 200 is operated until the temperature of the heat pump 300 reaches a predetermined second reference temperature. In other words, the control unit 900 controls the energy generated by the renewable energy facility 800 until the temperature of the heat exchange fluid stored in the heat storage tank 200 reaches the second reference temperature, And is supplied to the heat storage tank 200 from the heat pump 300.

The heat exchange fluid supplied from the hot water supply heat pump 300 to the thermal storage tank 200 is cooled or heated depending on whether the load generated in the season, substantially the air conditioning load 600 is a cooling load or an air conditioning load will be. For example, in the summer, since the temperature of the heat exchange fluid stored in the air conditioning heat pump 500 is increased by the cooling in the air conditioning load 600, Fluid will be supplied to the heat storage tank 200. In the case of the winter season, the heat exchange fluid heated by the heat pump 300 for hot water supply will be supplied to the heat storage tank 200 as opposed to the summer time.

Next, the control unit 900 controls the second pump P2 to stop when the temperature of the heat exchange fluid stored in the heat accumulation tank 200 reaches the second reference temperature. When the temperature of the heat exchange fluid stored in the heat accumulation tank 200 reaches the second reference temperature, the control unit 900 performs heat exchange by circulating the underground heat exchanger 100 sensed by the third temperature sensor S3 And controls the third pump P3 to circulate the heat exchange fluid between the underground heat exchanger 100 and the heat storage tank 200 until the temperature of the fluid reaches a predetermined third reference temperature. That is, the control unit 900 controls the amount of energy generated by the renewable energy facility 800 until the temperature of the heat exchange fluid flowing through the underground heat exchanger 100 reaches the third reference temperature, To the ground heat exchanger (100). The heat exchange fluid supplied from the hot water supply heat pump 300 to the underground heat exchanger 100 is also cooled or heated depending on whether the load generated in the air conditioning load 600 according to the season is a cooling load or an air conditioning load will be.

Meanwhile, when the amount of energy produced by the renewable energy facility 800 is greater than the reference energy amount and less than the preset energy amount, the control unit 900 controls the thermoelectric conversion unit The heat exchange fluid stored in the heat accumulation tank 200 is heated or cooled by the energy supplied to the heat accumulation tank 700. The thermoelectric element 700 may also cool or heat the heat exchange fluid stored in the heat storage tank 200 depending on whether the load generated in the air conditioning load 600 according to the season is a cooling load or an air conditioning load.

P4 and P5 are the fourth pump and the fifth pump, respectively. The fourth pump (P4) circulates the heat exchange fluid between the underground heat exchanger (100) and the heat storage tank (200). The fifth pump P5 circulates the heat exchange fluid between the heat storage tank 200 and the air conditioning bottom pump 500.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the operation of a new and renewable energy hybrid regenerative heat pump system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIGS. 2 to 5 are fluid flow charts showing the flow of fluid in a renewable energy hybrid thermal storage type heat pump system according to an embodiment of the present invention. FIG.

In the present embodiment, when the energy produced by the renewable energy facility 800 exceeds a predetermined set energy amount, the control unit 900 exceeds the reference energy amount among the energy produced by the renewable energy facility 800 The heat energy is supplied to the hot water tank 400, the heat accumulation tank 200, and the underground heat exchanger 100 through the heat exchange fluid in this order. When the energy produced by the renewable energy facility 800 is greater than the reference energy amount and less than the predetermined energy amount, the controller 900 performs heat exchange with the excess energy generated in the renewable energy facility 800 And supplies the fluid to the heat storage tank 200 through the medium. The control unit 900 substantially heats or cools the heat exchange fluid stored in the heat pump 300 for hot water supply with the extra energy generated by the renewable energy facility 800 and supplies the heated heat exchange fluid to the hot water tank 400, The tank 200 and the underground heat exchanger 100 may be supplied in this order or may be supplied to the heat storage tank 200 by the thermoelectric element unit 700 using the extra energy produced by the renewable energy facility 800 Thereby controlling the stored heat exchange fluid to be heated or cooled.

Referring to FIG. 2, the controller 900 controls the amount of excess energy generated by the renewable energy facility 800 when the energy generated by the renewable energy facility 800 exceeds the preset energy level To the hot water supply heat pump (300). The hot water supply heat pump 300 heats the heat exchange fluid stored by the supplied energy. The control unit 900 controls the first pump P1 to operate so that the heat exchange fluid heated between the hot water supply heat pump 300 and the hot water supply tank 400 is circulated. Therefore, energy is substantially transferred from the hot water supply heat pump 300 to the hot water supply tank 400.

3, when the temperature of the hot water stored in the hot water tank 400 sensed by the first temperature sensor S1 reaches a predetermined first temperature, the controller 900 controls the temperature of the hot water So that the heat exchange fluid stored in the heat pump 300 is supplied to the heat storage tank 200. The control unit 900 substantially controls the first pump P1 to stop and the second pump P2 to operate. Therefore, the heat exchange fluid stored in the hot water supply heat pump 300 is heated or cooled and transferred to the heat storage tank 200.

4, when the temperature of the heat exchange fluid stored in the thermal storage tank 200 sensed by the second temperature sensor S2 reaches a predetermined second temperature, the controller 900 controls the temperature of the hot- And controls the heat exchange fluid stored in the heat pump (300) to be transferred to the underground heat exchanger (100). To this end, the controller 900 controls the second pump P2 to stop and the third pump P3 to operate. Therefore, the heat exchange fluid stored in the hot water supply heat pump 300 may be heated or cooled and transferred to the underground heat exchanger 100.

Meanwhile, when the energy produced by the renewable energy facility 800 is less than the reference energy amount and less than the predetermined energy amount, the controller 900 determines that the excess energy produced by the renewable energy facility 800 is the heat energy To be supplied to the element unit 700. Therefore, the heat exchange fluid stored in the heat storage tank 200 may be heated or cooled by the thermoelectric element portion 700. 5, when the fourth pump P4 is controlled to be operated by the controller 900, the heat exchange fluid stored in the heat storage tank 200 passes through the heat pump 500 for air conditioning, To the heat exchanger (100).

In this embodiment configured as described above, extra energy among the energy produced by the renewable energy facility 800 is transferred to the hot water tank 400 to reduce the energy required for hot water supply. Further, in this embodiment, since the extra energy produced by the renewable energy facility 800 is sequentially stored in the heat storage tank 200 and the underground heat exchanger 100, the operation of the air conditioning load 600 It is possible to reduce the energy consumed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the above teachings. will be.

100: Underground heat exchanger 200: Heat storage tank
300: Heat pump for hot water supply 400: Hot water tank
500: Heat pump for air conditioning 600: Air conditioning load
700: Thermoelectric element part 800: Renewable energy equipment
900:

Claims (7)

At least one underground heat exchanger (100) buried in the earth to perform heat exchange between the heat exchange fluid and the earth;
A heat storage tank 200 in which the heat exchange fluid heat-exchanged in the underground heat exchanger 100 is stored;
A heat pump 300 for storing hot water supplied from the underground heat exchanger 100 or the heat storage tank 200 and heating or cooling the stored heat exchange fluid;
A hot water tank 400 in which hot water to be heat-exchanged with the heat exchange fluid stored in the hot water heat pump 300 is stored;
A heat pump 500 for storing the heat exchange fluid supplied from the underground heat exchanger 100 or the heat storage tank 200;
An air conditioning load 600 in which a refrigerant to be heat-exchanged with a heat exchange fluid stored in the air conditioning bottom pump 500 flows;
A thermoelectric element part (700) which generates heat or absorbs heat to heat or cool the heat exchange fluid stored in the heat storage tank (200);
A renewable energy facility 800 for producing energy supplied to the hot water supply heat pump 300 or the thermoelectric module 700;
The energy generated in the renewable energy facility 800 is selectively supplied to the thermoelectric element unit 700 and the hot water heat pump 300 according to the amount of energy produced in the renewable energy facility 800 A control unit (900) Lt; / RTI >
The control unit (900)
When the amount of energy produced in the renewable energy facility 800 is equal to or greater than a predetermined energy amount set to a value exceeding a preset reference energy amount, Is supplied to the hot water supply heat pump 300,
When the amount of energy produced in the renewable energy facility 800 is greater than the reference energy amount and less than the predetermined energy amount, an excess of the energy generated in the renewable energy facility 800 And an underground heat exchanger for controlling the supply of energy to the thermoelectric element part (700).
delete The method according to claim 1,
The control unit (900)
The heat exchange fluid heated or cooled by the energy supplied from the renewable energy facility 800 to the hot water supply heat pump 300 is supplied to the hot water tank 400, the heat storage tank 200, and the underground heat exchanger 100 A regenerative energy hybrid regenerative heat pump system including an underground heat exchanger which is controlled to be supplied sequentially.
The method according to claim 1,
The control unit (900)
The heat of the hot water stored in the hot water tank 400 is heated by the energy supplied from the renewable energy facility 800 to the hot water heat pump 300 until the temperature of the hot water reaches a predetermined first reference temperature The first pump P1 for circulating the heat exchange fluid between the hot water supply heat pump 300 and the hot water supply tank 400 is controlled to operate,
When the temperature of the hot water stored in the hot water tank 400 reaches the first reference temperature, the first pump P1 is stopped, and the temperature of the heat exchange fluid stored in the heat storage tank 200 reaches a predetermined second The heat exchange fluid heated or cooled by the energy supplied from the renewable energy facility 800 to the hot water supply heat pump 300 is supplied to the hot water heat pump 300 and the heat storage tank 200 to be operated by the second pump P2,
When the temperature of the heat exchange fluid stored in the heat accumulation tank 200 reaches the second reference temperature, the second pump P2 is stopped and heat exchange is performed through the heat accumulation tank 200 and the underground heat exchanger 100 The heat exchange fluid heated or cooled by the energy supplied to the hot water supply heat pump 300 from the renewable energy facility 800 is supplied to the underground heat exchanger 800 until the temperature of the fluid reaches a predetermined third reference temperature. (100) and the heat storage tank (200) to operate the third pump (P3) circulating the heat pump (100) and the heat storage tank (200).
The method according to claim 1,
The control unit (900)
When the amount of energy produced by the renewable energy facility 800 is greater than the reference energy amount and less than the preset energy amount, energy is supplied from the renewable energy facility 800 to the thermoelectric element unit 700 Thereby controlling the heat exchange fluid stored in the heat storage tank 200 to be heated or cooled.
At least one underground heat exchanger (100) buried in the earth to perform heat exchange between the heat exchange fluid and the earth;
A heat storage tank 200 in which the heat exchange fluid heat-exchanged in the underground heat exchanger 100 is stored;
A heat pump 300 for hot water supply in which the heat exchange fluid supplied from the underground heat exchanger 100 or the heat storage tank 200 is stored;
A hot water tank 400 in which hot water to be heat-exchanged with the heat exchange fluid stored in the hot water heat pump 300 is stored;
A thermoelectric element part (700) for heating or cooling the heat exchange fluid stored in the hot water heat pump (300) by selectively receiving energy from the renewable energy facility (800) and generating heat or absorbing heat;
A first pump (P1) circulating a heat exchange fluid between the hot water supply heat pump (300) and the hot water supply tank (400);
A second pump P2 for circulating a heat exchange fluid between the heat storage tank 200 and the hot water heat pump 300;
A third pump (P3) circulating the heat exchange fluid between the underground heat exchanger (100) and the hot water heat pump (300); And
A part of the energy produced by the renewable energy facility 800 is supplied to the hot water supply heat pump 300 according to the amount of energy produced in the renewable energy facility 800, P2, and P3 so that the heat-exchanging fluid heated or cooled by the first to third pumps P1, P2, and P3 is sequentially supplied to the hot water tank 400, the heat storage tank 200, and the underground heat exchanger 100, A control unit 900 for controlling the heating or cooling of the heat exchange fluid stored in the hot water tank 400 by supplying a part of the energy produced by the renewable energy facility 800 to the thermoelectric element unit 700; And a heat pump system for regenerative energy combined regenerative heat pump.
The method according to claim 6,
The control unit (900)
When the amount of energy produced by the renewable energy facility 800 is equal to or greater than a predetermined energy amount set to a value exceeding a preset reference energy amount,
The hot water supply heat pump 300 is provided between the hot water supply heat pump 300 and the hot water supply tank 400 until the temperature of the hot water stored in the hot water supply tank 400 reaches a predetermined first reference temperature Controls the operation of the first pump (P1) so that the heated heat exchange fluid is circulated,
When the temperature of the hot water stored in the hot water tank 400 reaches the first reference temperature, the temperature of the heat-exchanging fluid stored in the heat storage tank 200 reaches the predetermined second reference temperature, Controls the operation of the second pump (P2) so that the heat-exchange fluid heated or cooled by the hot water heat pump (300) is circulated between the pump (300) and the heat storage tank (200)
When the temperature of the heat exchange fluid stored in the heat storage tank 200 reaches the second reference temperature, the temperature of the heat exchange fluid circulating through the heat storage tank 200 and the underground heat exchanger 100 is lowered to a predetermined third reference temperature Controlling the operation of the third pump P3 so that the heat-exchange fluid heated or cooled in the hot water heat pump 300 is circulated between the underground heat exchanger 100 and the heat storage tank 200 until the heat- Regenerative Energy Combined Heat Regenerative Heat Pump System.

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