KR101641507B1 - Cooling heating system using heat exchanged bleeding underground water - Google Patents

Cooling heating system using heat exchanged bleeding underground water Download PDF

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Publication number
KR101641507B1
KR101641507B1 KR1020150068335A KR20150068335A KR101641507B1 KR 101641507 B1 KR101641507 B1 KR 101641507B1 KR 1020150068335 A KR1020150068335 A KR 1020150068335A KR 20150068335 A KR20150068335 A KR 20150068335A KR 101641507 B1 KR101641507 B1 KR 101641507B1
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KR
South Korea
Prior art keywords
bleeding
groundwater
water
ground
pipe
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KR1020150068335A
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Korean (ko)
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이영일
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(주)옥수개발
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00—Heat pumps
    • F25B30/06—Heat pumps characterised by the source of low potential heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • F25B41/04—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/002—Compression machines, plants or systems with reversible cycle not otherwise provided for geothermal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2501—Bypass valves

Abstract

The present invention relates to a cooling and heating system recycling bleeding underground water by exchanging heat of bleeding underground water. The purpose of the present invention is to improve efficiency of a geothermal system. According to the present invention, the cooling and heating system recycling bleeding underground water by exchanging heat of bleeding underground water comprises: a geothermal hole (10) penetrating the ground; a water supply means (20) composed of a water supply pump (22) and a water supply pipe (23); a heat exchanging means recovering heat of underground water; a main recovery pipe (40) opened and closed by a first valve (41); a bleeding underground water recycling means; and a control means controlling the bleeding underground water to be recovered to the geothermal hole.

Description

TECHNICAL FIELD [0001] The present invention relates to a cooling / heating system for recycling a groundwater,

More particularly, the present invention relates to a cooling / heating system, and more particularly, to a cooling / heating system, and more particularly, to a cooling / heating system, and more particularly to a cooling / heating system that includes a heat exchanging means (heat pump, ), The water is adjusted to the optimum temperature condition, water is supplied to the living water, and water is directly returned to the geothermal space to solve the water shortage phenomenon in the mountainous area where the pension is operated, and the bleeding ground water which improves the efficiency of the geothermal system is heat- Cooling and heating system.

Geothermal heat refers to the natural heat and ground heat of groundwater pumped by excavating groundwater. Generally, the ground surface is excavated at a deep depth of about 100 meters or more and 500 meters or so, and there is a pipe for heat exchange, The groundwater pumping pump and the pumping water were installed in the same way as the groundwater treatment facility, and the groundwater was pumped, and the heat of the groundwater was heat-exchanged using the heat pump, and then the groundwater exchanged with the heat- And a heat exchange system for returning to the inside is used.

The groundwater temperature is maintained at a temperature of 15 ° C to 17 ° C throughout the year without any changes in the seasons. When the groundwater having this temperature is pumped and heat is used by using the heat pump, the amount of water in the groundwater pump is reached to 1000 liters per hour, ℃, it is possible to obtain a calorie of up to 4000 kilocalories per hour. The temperature of the groundwater which is exchanged by the heat exchange is lowered to the inside of the groundwater trench through the water return pipe, and the temperature of the groundwater is lowered As the cycle continues to be elevated, this cycle can continue to be available. The facility using this principle is a geothermal heating and cooling system.

In the geothermal heating and cooling system, it is essential that the excavated groundwater is an excavated groundwater facility. In particular, in the case of a facility for pumping groundwater and exchanging heat, it is necessary to connect the groundwater pump and the pumping water pipe to the inside of the excavated groundwater .

Geothermal underground heat exchangers using groundwater trenches are classified into two types: closed type and open type.

In the closed type, the high density polyethylene pipe (HDPE) for heat exchange is vertically connected by the U tube in the tear hole, and the heat exchanging brine is circulated inside the trench and the ground heat can be exchanged.

Open type is similar to general ground water system, but ground water pumped by underwater motor pump is heat-exchanged through heat exchanger of the heat pump installed on the ground, and ground water returned to circulation is again returned to the inside of the trench so that the earth heat can be exchanged .

A typical open-type geothermal heat exchanger is installed to the bottom with an inner casing made of 100 ~ 125mm diameter PVC pipe inside the trench, excavated at a planned depth of approximately 300 ~ 500m depth, and extended by a connection socket.

In the lower section, a pipe with a strainer is connected, and an underwater pump is installed in the upper part of the inner casing to circulate the ground water up to the ground heat pump through a pumping pipe.

Various types of open-loop heat exchangers have been developed and applied.

Patent Document 1 (Registered Patent No. 10-0997184) discloses a structure in which ground tapers formed perpendicularly to the ground to be in contact with an underground water layer; A plurality of through holes formed in the periphery of the ground hole to prevent collapse of the air wall and to receive the recovered ground water and a plurality of through holes peripherally; A muffler installed in the inside of the oil pipe and sucking the ground water having flowed into the inside of the oil pipe and recovering the heat and supplying the ground water to the outside; An underwater motor pump installed in the hollow body and pumping the ground-recovered groundwater to the outside; A heat pump installed in the room, connected to the ground hole to heat and recover the groundwater using heat recovered groundwater, and recovering the used groundwater again; A pumping pipe connected to the underwater motor pump at one end and connected to the heat pump to guide the groundwater pumped at the underwater motor pump to the heat pump side; A groundwater supply pipe connected to the pumping pipe at one end and connected to the heat pump at the other end to supply the groundwater pumped by the underwater motor pump to the heat pump side; A groundwater recovery pipe connected to the heat pump at one end and connected to the space between the non-porous pipe and the porous pipe to recover the ground water discharged from the heat pump to the ground; Bleeding groundwater injection system, which is formed vertically in the ground and has a depth less than that of the ground hole so that the groundwater discharged from the ground hole is grounded. A casing coupled to the bleeding groundwater injection port to prevent ground walls from being collapsed and to receive bleeding groundwater; A bleeding groundwater pipe connected to the groundwater recovery pipe and the casing to discharge groundwater of some of the groundwater recovered to the groundwater to the bleeding groundwater injection well; A water tank connected to the groundwater recovery pipe and stored with some of the groundwater recovered by the geothermal water introduced therein; A water tank pipe connected to the groundwater recovery pipe and the water tank to supply the groundwater of some of the groundwater recovered in the geothermal space to the water tank side; A connection pipe connected to the groundwater recovery pipe at one end and connected to the bleeding groundwater pipe and the water tank pipe to supply groundwater of a part of the groundwater recovered through the groundwater recovery pipe to the bleeding groundwater pipe and the water tank pipe; A bypass valve installed in the connection pipe and controlling the flow of groundwater flowing from the groundwater recovery pipe to the bleeding ground water pipe and the water tank pipe; A first valve installed in the bleeding groundwater pipe and controlling the flow of groundwater flowing from the connection pipe to the bleeding groundwater injection well; And a second valve installed in the water tank pipe and controlling the flow of the groundwater flowing from the connection pipe to the water tank side. The bleeding groundwater is recycled. However, when the amount of groundwater is insufficient, the facility for recycling becomes useless, It is not realistic because of the lack of groundwater. Although the groundwater discharged to the ground through the bleeding groundwater injection can be returned to the groundwater, all the groundwater discharged from the bleeding groundwater injection well can not be returned to the bleeding groundwater injection well, resulting in a shortage of groundwater. As a result, The operating rate and efficiency of the apparatus are degraded.

Patent No. 10-0997184

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to solve the above-mentioned problems by providing an apparatus and a method for controlling the heat exchange, The system is designed to optimize the temperature of the water, and then water is supplied to the living water. In addition, the water is supplied to the ground and the pension system is operated to solve the water shortage. In addition, the cooling and heating system The purpose is to provide.

The cooling and heating system for heat-exchanging and recycling the bleeding ground water according to the present invention comprises: a geothermal hole formed in the ground; A water supply pump installed in a casing installed inside the tearing hole to pump groundwater in the casing, and water supply means connected to the water supply pump and configured to supply ground water; Heat exchange means for recovering the heat of the ground water supplied through the water supply pipe of the water supply means through the geothermal heat exchanger; A main return pipe arranged in a tearing hole outside the casing and returning the bleeding groundwater passing through the heat exchanging means to the ground hole; A bleeding ground water recycling unit for supplying the bleeding ground water that has passed through the geothermal heat exchanger of the heat exchange unit to the living water and returning it to the geothermal hole through heat exchange; And a control means for selectively controlling the bleeding ground water recycling means and the main water returning pipe.

The bleeding ground water recycling means includes a bleeding groundwater recovery pipe connected to the main return pipe and bypassing bleeding ground water passing through the main return pipe, a tank storing bleeding ground water bypassed through the bleeding ground water recovery pipe, And a bleeding groundwater feed pipe for returning the water stored in the tank to the tearing hole.

The present invention is further characterized by a bleeding groundwater heat exchange tube for regulating the temperature of water stored in the tank through heat exchange between the heat of the refrigerant passing through the load-side heat exchanger of the heat exchange means and the water stored in the tank.

According to the cooling / heating system for exchanging and reusing the bleeding ground water according to the present invention, the bleeding groundwater that has passed through the geothermal heat exchanger of the heat exchanger such as a heat pump and exchanged with the refrigerant of the geothermal heat exchanger is temporarily stored in the tank In addition, water is supplied to the living water, and the ground water, which is returned to the ground hole, is not exchanged with the ground water that is supplied to the heat pump. Therefore, the living water is supplied to the residential space, And improves the efficiency of the heat pump.

In addition, the heat of the load-side heat exchanger is supplied to the water (bleeding ground water) stored in the tank to supply the hot water in the winter season and to supply the cold water in the summer. Thus, without using a separate heat source, Improves utility and reliability as a geothermal system by providing seasonal water (living water, geothermal reclaim water).

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a system diagram of a heating / cooling system for heat exchange and reuse of bleeding ground water according to Embodiment 1 of the present invention; Fig.
2 is a systematic diagram of an air-conditioning system in which the bleeding groundwater according to the second embodiment of the present invention is heat-exchanged and recycled.
3 is an illustration of a tank applied to an air-conditioning system for heat-exchanging and recycling the bleeding ground water according to the present invention.

≪ Example 1 >

As shown in FIG. 1, the heating / cooling system for heat-exchanging and recycling the bleeding groundwater according to the present embodiment includes a ground hole 10 formed in the ground to recover geothermal heat (groundwater heat), groundwater For example, a heat pump 30, a geothermal heat exchanger 32 of the heat pump 30, and a geothermal heat exchanger 32 of the heat pump 30 as heat exchange means for recovering the heat of the ground water supplied through the water supply means 20 and the water supply means 20, A bleeding groundwater recovery pipe 50 for recovering bleeding groundwater that has passed through the geothermal heat exchanger 32 of the heat pump 30, a main return pipe 40 for returning the bleeding groundwater passing through the geothermal heat exchanger 32 of the heat pump 30, A tank 60 for storing bleeding groundwater recovered through the bleeding groundwater recovery pipe 50, a bleeding groundwater heat exchange means 70 for regulating the temperature of water (bleeding groundwater) stored in the tank 60, a tank 60, (10) to water It consists of a leading ground water supply pipe (80).

The bleeding groundwater recovery pipe 50, the tank 60, the bleeding groundwater heat exchange means 70, and the bleeding groundwater supply pipe 80 are means for reclaiming bleeding ground water.

The ground hole 10 is drilled through a conventional boring equipment.

The water supply means 20 includes a casing 21 installed in the ground hole 10, a water supply pump 22 installed in the casing 21 for pumping groundwater in the casing 21, And a water supply pipe 23 for circulating the groundwater from the water supply pump 22 to the geothermal heat exchanger 32 and circulating the groundwater heat exchanger 32 to the geothermal heat exchanger 32 do. In the drawing, reference numeral 24 denotes an upper protection hole for protecting the tear hole 10 in the open type cooling and heating system.

The casing 21 is constituted by a tube having a diameter smaller than the diameter of the ground hole 10 so that the ground hole 10 is partitioned into the water supply portion 11 and the water return portion 12, And a plurality of through holes 21a for guiding the air to the part 11, that is, in the form of a pipe.

The water supply pump 22 is installed in the casing 21 through a water supply pipe 22 for pumping groundwater in the casing 21 or the water supply unit 11, for example.

The water supply pipe 23 is connected to the water supply pump 22 and is piped so as to be heat-exchanged with the refrigerant of the geothermal heat exchanger 32 of the heat pump 30.

The upper protection hole 24 is provided on the surface of the ground and is in the form of a box used for the purpose of preventing contamination and protection of the ground hole 1 by sealing the upper portion of the ground hole 10 to the outside.

The heat pump 30 is composed of a compressor 31, a geothermal heat exchanger 32, an expansion valve 33, a load side heat exchanger 34 and a four-way valve 35. In the summer and winter, And the load side heat exchanger (34) is used as an evaporator or a condenser. Therefore, the geothermal heat exchanger 32 is used as a condenser in the summer season and an evaporator in the winter season.

The main water return pipe 40 is a pipe for returning the bleeding ground water that has passed through the geothermal heat exchanger 32 to the water return portion 12 of the tearing hole 10.

Since the bleeding groundwater is not returned to the water returning unit 12 through the main water returning pipe 40 at this time, the first valve 41, .

Since the groundwater is returned to the water returning unit 12 and then supplied by the water supply pump 22 from the water supply unit 11, the position of the discharge port of the water supply pump 22 and the main water returning pipe 40 is a position for optimal heat exchange For example, the discharge port of the main return pipe 40 is disposed at the bottom of the tearing hole 10 and the feed pump 22 is disposed at the top of the tearing hole 10.

The bleeding groundwater recovery pipe 50 recovers the bleeding groundwater (which is heat-exchanged with the refrigerant of the geothermal heat exchanger 32) that has passed through the geothermal heat exchanger 32 to the tank 60 for recycling, Is branched to the main water return pipe (40) and the other discharge end is connected to the inside of the tank (60) to store the bleeding ground water in the tank (60).

The bleeding groundwater recovery pipe 50 is equipped with a second valve 51 for opening and closing.

The second valve 51 is controlled by the controller so as to open and close the first valve 41 of the main water return pipe 40 opposite to the first valve 41. Control by the controller will be described in detail below.

Although the first valve 41 of the main water return pipe 40 and the second valve 51 of the bleeding ground water return pipe 50 are shown as independent form in the figure, a 3way valve is provided at the branching point of the bleeding ground water return pipe 50 .

The first and second valves 41 and 51 are disposed so that the bleeding ground water is directly returned to the water returning portion 12 of the ground hole 10 and stored in the tank 60 through the main water return pipe 40. [ Can be opened at the same time.

The tank 60 stores the bleeding groundwater recovered through the bleeding groundwater recovery pipe 50 and supplies the bleeding groundwater to the ground hole 10 for recycling as the living water. That is, by recycling the water stored in the tank 60 as domestic water, it is possible to solve the water shortage in areas where frequent water scarcity phenomena such as mountainous areas are frequent, and also to return the bleeding ground water to the scorpion 10, The water stored in the tank 60 is regulated to the optimum state through the bleeding ground water heat exchange means 70, and the temperature is controlled to be low and low in the season, and high in the winter season).

The tank 60 is configured to store a predetermined amount of water, for example, an upper level sensor 61 and a lower level sensor 62 are provided. For example, the controller 90, which will be described later, controls the discharge of stored water (return to the ground hole 10) at the time of sensing by the upper level sensor 61 and the shutoff of the stored water at the time of sensing the lower level sensor 62 do.

The bleeding groundwater heat exchanging means 70 regulates the temperature of the water stored in the tank 60 by the heat of the refrigerant passing through the load side heat exchanger 34 of the heat pump 30 and the refrigerant passing through the load side heat exchanger 34 A refrigerant circulation type (refrigerant circulation pipe) for circulating the refrigerant in the tank 60 through a separate heating medium circulating inside the tank 60, and a heat medium circulation cycle for heat-exchanging the refrigerant with the refrigerant in the load side heat exchanger 34, (Water circulation pipe and pump) for circulating the water stored in the tank 60 for heat exchange with the refrigerant of the load-side heat exchanger 34, etc. In this case, The heat exchanger 34 can be divided into the load-side heat exchanger and the water-side heat exchanger. Of course, in the case of the heating medium circulation type, it is also possible that the load and the tank 60 are constituted by one circulation pipe.

The bleeding groundwater heat exchange means 70 is configured to regulate the temperature of the water stored in the tank 60 only when necessary. In the case of the refrigerant circulation type, the valve is configured to block or connect with the load side heat exchanger 34, If the connection is not established, a heating medium pump is formed which forcibly circulates the heating medium in the case of the heating medium circulation type. If the temperature of the water is required, the heating medium pump is operated. Otherwise, the heating medium pump is stopped. In the case of the water circulation type, If the water pump is configured to control the temperature of the water, it activates the water pump or otherwise stops it.

Therefore, the bleeding groundwater is stored in the tank 60 through the bleeding groundwater recovery pipe 50 and then supplied to the ground hole 10 through the bleeding groundwater supply pipe 80.

The bleeding groundwater heat exchange means is not limited to the load side heat exchanger 34 of the heat pump 30 but may be an electric heater or a cooler installed in the tank 60 and generating heat upon receiving electricity.

Since the bleeding groundwater supply pipe 80 is buried in the ground to regulate the temperature of the water in the process of returning the water stored in the tank 60 to the ground hole 10, the bleeding groundwater heat exchange means 70 is essentially applied Or more. In other words, when the bleeding groundwater heat exchanging means 70 is applied, the effect of maximizing the effect is maximized because the temperature of the bleeding groundwater can be efficiently regulated and returned to the ground hole 10 with the water of the optimum temperature.

The bleeding groundwater supply pipe 80 connects the water stored in the tank 60 to the water return portion 12 of the ground hole 10 directly or to the main water return pipe 40 and flows through the main water return pipe 40 To the water reducing section (12).

The bleeding groundwater supply pipe 80 is used at the same time with the bleeding groundwater recovery pipe 50 to be used in the same open / close state, that is, simultaneous opening or closing. To this end, a third valve 81 opened or closed together with the second valve 51, .

The bleeding groundwater supply pipe (80) is buried in the ground to guide the bleeding groundwater to the geothermal column (10). Since the bleeding groundwater and the geothermal heat are exchanged in this process, the bleeding groundwater is adjusted to the optimum temperature, 10).

A pump 82 is also provided for supplying the water stored in the tank 60 to the ground hole 10 through the bleeding groundwater supply pipe 80. The pump 82 may be an underwater pump installed inside the tank 60.

In the present invention, when the bleeding ground water returned to the ground hole 10 through the main water return pipe 40 is at an appropriate temperature, the water is returned through the main water return pipe 40. On the contrary, when the temperature of the bleeding ground water is not the proper temperature The bleeding groundwater is stored in the tank 60, the temperature is adjusted, and the water is returned to the ground hole 10.

For this, a temperature sensor 91 for detecting the temperature of the bleeding groundwater that has passed through the geothermal heat exchanger 32, a current temperature detected (for example, in units of 1 minute) by the temperature sensor 91, (Opening) of the first to third valves 41, 51, and 81 and controlling the bleeding groundwater heat exchanging means 70. The controller 90 controls the opening / closing (opening) of the first to third valves 41,

The controller 90 compares the current temperature with the reference temperature. If the current temperature is lower or higher than the reference temperature (depending on the season, for example, if the present temperature is higher than the reference temperature during the summer, (The first valve 41), the bleeding ground water return pipe 50 and the bleeding ground water supply pipe 60 are opened and the bleeding ground water heat exchange means 70 is operated to remove the geothermal heat The bleeding groundwater passing through the side heat exchanger 32 is stored in the tank 60 and is heat-exchanged through the bleeding groundwater heat exchange means 70 and then supplied to the tearing hole 10.

The operation of the cooling and heating system for heat-exchanging and recycling the bleeding ground water according to the present embodiment is as follows.

The water supply pump 22 of the water supply means 20 pumps the ground water and supplies it to the geothermal heat exchanger 32 of the heat pump 30 through the water supply pipe 23.

The refrigerant passing through the geothermal heat exchanger 32 of the heat pump 30 is heat-exchanged with the groundwater supplied through the water supply pipe 23 to evaporate in the heating mode (the geothermal heat exchanger 32 is an evaporator) Side heat exchanger 32 is condensed in the condenser. The load-side heat exchanger (34) of the heat pump (30) provides heating heat as a condenser in a heating mode to produce indoor and / or outdoor water and cool the room as an evaporator in a cooling mode.

The bleeding groundwater passing through the geothermal heat exchanger 32 is returned to the ground trench 10 through the main water return pipe 40 or recycled by the recycling means for bleeding ground water 50, The heat exchange means 70 and the bleeding ground water supply pipe 80).

The selection of the main return line (40) and the bleeding recycling means are both automatic and manual control based on the temperature of the bleeding groundwater.

In the case of the electronic control, the controller 90 compares the current temperature detected in real time by the temperature sensor 91 with the pre-stored reference temperature, and if the current temperature satisfies the reference temperature range, So that the bleeding groundwater is returned to the ground hole 10.

On the other hand, when the present temperature is outside the reference temperature, the main return pipe 40 is closed and the bleeding ground water recycling means is operated.

Therefore, the bleeding groundwater that has passed through the geothermal heat exchanger 32 is stored in the tank 60 through the bleeding groundwater recovery pipe 50.

The water stored in the tank 60 is supplied to the living water and is returned to the ground hole 10.

At this time, the water stored in the tank 60 due to the operation of the bleeding groundwater heat exchange means 70 is lowered to a low temperature in the summer season by the heat of the load side heat exchanger 34 and is raised to a high temperature in the winter season.

Accordingly, there is an advantage in that the living water is seasonally used without supplying a separate heat source by supplying the seasonal living water (the cold water in the summer and the hot water in the winter) simultaneously with the indoor heating. In addition, since the heat-exchanged water is returned to the ground hole 10, there is no heat exchange with the water supply side groundwater by the water supply means 20, and the efficiency of the heat pump 30 is improved.

≪ Example 2 >

2, the cooling / heating system for heat-exchanging and recycling the bleeding groundwater according to the present embodiment is configured such that the bleeding groundwater, which has passed through the geothermal heat exchanger 32 without using the main water return pipe 40, In that the water is supplied to the living water or water is supplied to the tearing hole (10).

The first embodiment uses the main water return pipe 40 to return the bleeding ground water passing through the geothermal heat exchanger 32 to the ground hole 10 or to store the bleeding ground water in the tank 60. However, Is to store the bleeding ground water in the tank (60) and to supply the stored water to the living water or to the ground hole (10) through the bleeding ground water supply pipe (80). The second valve 51 of the bleeding groundwater recovery pipe 50 and the third valve 81 of the bleeding groundwater supply pipe 80 do not apply to the main water return pipe 40 as shown in FIG. Depending on the system, the bleeding groundwater that has passed through the geothermal heat exchanger 32 is stored in the tank 60 via the bleeding groundwater recovery pipe 50 and used as domestic water or through the bleeding groundwater supply pipe 80, ).

In the present embodiment, the bleeding groundwater heat exchange means 70 is controlled to be operated and stopped according to the temperature of the bleeding groundwater.

The other configurations are the same as those of the first embodiment.

According to the present embodiment, the bleeding groundwater that has passed through the geothermal heat exchanger 32 is stored in the tank 60 through the bleeding groundwater recovery pipe 50.

The water stored in the tank 60 is supplied to the domestic water and is supplied to the water return portion 12 of the ground hole 10 via the bleeding ground water supply pipe 80.

3, the tank 60 is partitioned into a living water storage portion 63 and a bleeding ground water storage portion 64 by a partition 65 and a bleeding groundwater A rotating damper 66 for guiding the bleeding groundwater discharged from the recovery pipe 50 to the living water storage 63 or the bleeding groundwater storage 64 is provided.

The living water storage unit 63 and the bleeding groundwater storage unit 64 are configured to discharge the domestic water and the tailored water according to the respective applications. For example, And a bleeding groundwater supply pipe 80 is connected to the bleeding groundwater storage part 64. [

The living water storage unit 63 and the bleeding groundwater storage unit 64 are respectively provided with a water level sensor and the damper 66 is connected to the living water storage unit 63 based on the detection value of the water level sensor, The bleeding groundwater recovered in the bleeding groundwater recovery pipe 50 is stored in the bleeding groundwater storage unit 64. When the bleeding groundwater storage unit 64 is filled with the bleeding groundwater, So that the bleeding groundwater is stored in the domestic water storage unit 63.

Of course, the damper 66 is not limited to the automatic control by the water level sensor and the controller, but may also be rotated by the manual operation of the user so that the user can freely select and store the water for his / her desired use.

It is preferable that gauges (mechanical, electronic, see-through window, etc.) indicating the respective storage amounts are applied to the living water storage unit 63 and the bleeding ground water storage unit 64.

In the case of the split type tank 60, the bleeding groundwater heat exchange means 70 is applied to the domestic water storage 63 and the bleeding ground water storage 64, respectively.

10: geothermal hole, 20: water supply means
21: casing, 22: feed pump
23: water pipe, 24: upper protection hole
30: heat pump, 32: geothermal heat exchanger
34: load side heat exchanger, 40: main return pipe
41, 51, 81: first to third valves, 50: bleeding groundwater recovery pipe
60: tank, 70: bleeding ground water heat exchange means
80: Bleeding ground water supply pipe,

Claims (4)

A ground hole (10) formed in the ground;
A water supply pump 20 installed in a casing 21 installed in the tear hole and pumping groundwater in the casing, water supply means 20 composed of a water supply pipe 23 connected to the water supply pump and supplying ground water, ;
Heat exchange means for recovering the heat of the ground water supplied through the water supply pipe of the water supply means through the geothermal heat exchanger (32);
A main return pipe (40) that is opened in the tail hole outside the casing and opened and closed by the first valve (41) and returns the bleeding groundwater passing through the heat exchange unit to the tail hole;
A bleeding groundwater recovery pipe (50) connected to the main return pipe and the second valve so as to open and close and to bypass the bleeding ground water passing through the main return pipe from the tail pipe, a bleeding ground water return pipe (50) bypassed through the bleeding ground water recovery pipe And a third valve (81) that is opened or closed together with the second valve. The water stored in the tank is indirectly returned through the main return pipe through a pump Or a bleeding groundwater supply pipe (80) for directly returning to the tearing hole;
And control means for controlling the bleeding groundwater passing through the geothermal heat exchanger through the control of the first to third valves so as to be returned to the tearing hole through the main return pipe or to be returned to the tearing hole through the bleeding ground water recycling means and,
The tank is partitioned into a living water storage portion 63 and a bleeding ground water storage portion 64 by a partition wall 65 and a bleeding groundwater discharged from the bleeding groundwater recovery pipe 50 is disposed at an upper portion of the partition wall 65 And a rotating damper (66) for guiding the groundwater to the living water storage unit (63) or the bleeding groundwater storage unit (64). A ground hole (10) formed in the ground;
A water supply pump (20) installed in a casing installed in the tear hole to pump ground water in the casing, and a water supply unit connected to the water supply pump and supplying ground water;
Heat exchange means for recovering the heat of the ground water supplied through the water supply pipe of the water supply means through the geothermal heat exchanger;
A bleeding groundwater recovery pipe 50 for bypassing the bleeding groundwater passing through the geothermal heat exchanger of the heat exchange unit;
A tank 60 for storing bleeding groundwater bypassed through the bleeding groundwater recovery pipe;
And a bleeding groundwater supply pipe (80) for returning water stored in the tank to the ground through the pump,
The tank is partitioned into a living water storage portion 63 and a bleeding ground water storage portion 64 by a partition wall 65 and a bleeding groundwater discharged from the bleeding groundwater recovery pipe 50 is disposed at an upper portion of the partition wall 65 And a rotating damper (66) for guiding the groundwater to the living water storage unit (63) or the bleeding groundwater storage unit (64). The bleeding groundwater heat exchange means (70) for controlling the temperature of the water stored in the tank through heat exchange between the heat of the refrigerant passing through the load side heat exchanger (34) of the heat exchange means and the water stored in the tank Wherein the bleeding groundwater is heat-exchanged and recycled. delete
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101801775B1 (en) * 2016-08-18 2017-11-29 주식회사 지지케이 Geothermal ground heat exchanger system and method for controlling thereof
KR101993627B1 (en) * 2018-06-18 2019-06-27 노승엽 Geothermal heating and cooling system for optimization of heat pump And That control method
KR101993628B1 (en) * 2018-06-18 2019-06-27 노승엽 A geothermal heating / cooling device capable of coping with a variable load with a preheating function
WO2019221315A1 (en) * 2018-05-17 2019-11-21 주식회사 티이 Heat quantity calculation method for brine-refrigerant type heat pump system using geothermal energy

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100997184B1 (en) 2010-07-06 2010-11-29 안근묵 Open type geothermal system unit that recycle bleeding underground water
KR20150012823A (en) * 2013-07-26 2015-02-04 김진상 Ground water circulation system for ground-loop heat exchanger

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100997184B1 (en) 2010-07-06 2010-11-29 안근묵 Open type geothermal system unit that recycle bleeding underground water
KR20150012823A (en) * 2013-07-26 2015-02-04 김진상 Ground water circulation system for ground-loop heat exchanger

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101801775B1 (en) * 2016-08-18 2017-11-29 주식회사 지지케이 Geothermal ground heat exchanger system and method for controlling thereof
WO2019221315A1 (en) * 2018-05-17 2019-11-21 주식회사 티이 Heat quantity calculation method for brine-refrigerant type heat pump system using geothermal energy
KR101993627B1 (en) * 2018-06-18 2019-06-27 노승엽 Geothermal heating and cooling system for optimization of heat pump And That control method
KR101993628B1 (en) * 2018-06-18 2019-06-27 노승엽 A geothermal heating / cooling device capable of coping with a variable load with a preheating function

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