KR101658405B1 - Cooling and heating system with heat pump using discharged ground water - Google Patents

Abstract

A heat pump cooling / heating system using an effluent groundwater is disclosed. According to the embodiment of the present invention, there is provided a heat pump unit comprising a heat pump unit having a pair of heat exchangers, a compressor, a four-way valve and an expansion valve, a water collecting structure buried in the ground to collect the outflow ground water, And a water supply unit for supplying the outflow groundwater through the filtering unit to the heat pump unit.

Description

TECHNICAL FIELD [0001] The present invention relates to a heat pump cooling / heating system using outflow groundwater,

The present invention relates to a heat pump cooling / heating system using an effluent groundwater, and more particularly, to a heat pump cooling / heating system using an effluent groundwater, which can be used for heating and cooling the outflow groundwater collected by a water collecting structure installed in a building, Cooling and heating system.

With the rise of fossil energy exhaustion and environmental pollution problem, research and development on the utilization of clean energy such as solar energy, geothermal heat, wind power and the like have been actively carried out, and in fact, System utilization is increasing.

As a part of this, the present applicant has proposed a heat pump cooling / heating system using a geothermal heat and a solar heat and a control method thereof through a Korean Patent Registration No. 10-1316691 (hereinafter referred to as "Prior Art 1" Using a heat pump not only can perform both cooling and heating with one system but also has the advantage that the use of fossil energy can be greatly reduced by utilizing clean energy.

In order to utilize the underground heat, a means of heat exchange in the ground above a certain depth must be buried. Therefore, the heat pump heating and cooling system which can utilize the underground heat is mainly installed in newly built buildings and agricultural facilities.

In a building or a road of an apartment, an airport, a hospital, a school or the like of a certain scale or more, a water collecting structure for collecting the outflow groundwater and flowing it to the sewer is installed in order to prevent inundation by the outflow groundwater.

Since the groundwater collected in such a water collecting structure is similar to the temperature of the ground, it is being discharged to the sewer although it can be utilized as a heat source of the heat pump heating and cooling system. Therefore, in order to utilize this, Korean Patent Registration No. 10-0698021 (hereinafter referred to as "Prior Art 2") has been proposed.

However, although the building heating and cooling system according to the prior art 2 has an advantage of utilizing the water storage tank provided in the water collecting structure as described above, there is a disadvantage that a plurality of heat exchangers for heat exchange and a plurality of heat pumps must be separately installed in the water storage tank .

In the prior art 2, it is described that the heat exchange efficiency is not lowered even if foreign substances contained in the effluent groundwater are accumulated in the pipe to some extent by using a pipe made of polyethylene as the material of the heat exchanger. However, The problem is not presented.

Korean Patent Registration No. 10-1316691 entitled HEAT PUMP HEATING AND WATER PURIFICATION SYSTEM USING GEOTHERMAL AND SOLAR HEAT AND ITS CONTROL METHOD, Date: September 30, 2013) Korean Intellectual Property Office Registration No. 10-0698021 (Title of the Invention: Building HVAC system using outflow groundwater and geothermal source heat pump, date of registration: March 15, 2007)

The embodiment of the present invention is intended to utilize the outflow groundwater collected in the water collecting structure installed in buildings, roads, tunnels, etc. as a heat source.

Also, the embodiment of the present invention is intended to utilize the effluent groundwater utilized as a heat source as heavy water.

Further, the embodiment of the present invention is intended to save the maintenance and maintenance costs of the heat pump heating and cooling system.

According to one aspect of the present invention, there is provided a heat pump unit comprising a heat pump unit having a pair of heat exchangers, a compressor, a four-way valve and an expansion valve, a water collecting structure buried in the ground to collect the outflow ground water, And a water supply unit for supplying the outflow groundwater through the filtering unit to the heat pump unit.

A filtering unit having a filter installed between one side of the filter housing and the other side of the filter housing, one side of which is connected to the other end of the first intake pipe, And a second intake pipe connected to the other side of the filter housing and connected to the water supply unit on the other side.

Wherein the fitting portion includes a first water intake valve provided between the other end of the first water intake pipe and the water collecting structure to open and close the first water intake pipe and one end portion of the first water intake valve is connected to the water collecting structure of the first water intake pipe and the first water intake valve A bypass pipe connected to the other end of the filter housing and connected to the other end of the filter housing, a bypass valve installed in the bypass pipe to open and close the bypass pipe, a drain pipe connected to one side of the filter housing, And a drain valve installed in the drain pipe to open and close the drain pipe.

The fitting portion may include a second water intake valve installed in the second water intake pipe and opening / closing the second water intake pipe, and a second water intake valve provided between the other end of the second water intake pipe and the second water intake valve, A backwash pipe connected to the other end of the second water intake pipe at one end and connected to the other end of the filter housing at the other end, a backwash pump installed in the backwash pipe, And a backwash valve installed in the washing pipe to open and close the backwash pipe.

The filtering unit may further include a pressure tank installed in the backwash pipe.

The water supply unit includes a water pipe having one end connected between the second water intake valve and the third water intake valve of the second water intake pipe and the other end connected to the heat pump unit, And may further include a direct water valve for opening and closing.

The water supply unit includes a water storage tank, a water reservoir having one end connected to the other end of the second water intake pipe and the other end connected to the water storage tank, one end connected to the water storage tank and the other end connected to the heat pump A water supply pipe, and a water supply pump installed in the water supply pipe.

A plurality of pipes connected to the heat pump unit at one end and connected to the water collecting structure to flow the outflow groundwater through the heat pump unit to the water collecting structure; And a water pipe connected to the plurality of pipes.

The water collecting structure includes one or more water holes formed in the bottom of the water collecting structure from the outer circumferential surface to the inner circumferential surface thereof and one or more water collecting holes connected to the water holes to collect the outflow water introduced into the water holes can do.

At this time, the water collecting structure may further include a housing surrounding the pipe.

Here, a drain through which water flowing from the surface is introduced may be formed on the upper side of the collecting surface.

According to the embodiment of the present invention, since the outflow groundwater collected in the water collecting structure installed in a building, a road, a tunnel, or the like is used as a heat source of a heat pump, costs for installing and operating the heat pump cooling and heating system can be saved.

According to the embodiment of the present invention, the filter unit for filtering the effluent groundwater is provided, so that the effluent groundwater utilized as the heat source can be utilized as the heavy water.

In addition, according to the embodiment of the present invention, foreign matter accumulated in the filter unit can be backwashed, so that the maintenance and repairing cost of the heat pump cooling and heating system can be saved.

1 is a view for explaining the underground runoff;
2 is a view for explaining a heat pump cooling / heating system using outflow groundwater according to an embodiment of the present invention;
Fig. 3 is a view for explaining a fitting portion shown in Fig. 2
FIGS. 4 and 5 are views for explaining a method of backwashing in the peeling portion shown in FIG. 3
6 and 7 are views for explaining other examples of the water collecting structure connected to the heat pump cooling / heating system using the outflow groundwater according to the embodiment of the present invention

The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated and described in the drawings. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a view for explaining the underground effluent.

Referring to FIG. 1, the river water (23) flows through the river (20) formed on the ground (10). When the excavation hole 12 is formed in the ground 11 to construct a building or the like at a position spaced a certain distance from the river 20, the groundwater flows out and the drainage groundwater 13 becomes high.

At this time, when the separation distance D is small, that is, when the river 20 and the excavation hole 12 are close to each other, the water level WL of the outflow groundwater 13 can reach the water level of the river water 23. If the separation distance D is large or the ground surface 10 is inclined and the impervious layer is formed in the ground 11, the water level WL of the outflow groundwater 13 may be varied, Is formed at a certain depth or more, it is well known that the effluent 13 becomes high.

Therefore, as mentioned above, in order to prevent various problems caused by inundation by the outflow groundwater 13, it is general to install a water collection structure for collecting the outflow groundwater 13 and flowing it to the sewerage , Large buildings such as airports, subway stations, subways, department stores, general hospitals, and high-rise apartments are almost entirely installed with water collecting structures.

The water temperature of the effluent groundwater 13 collected in the water collecting structure is generally in the range of 17 to 18 degrees Celsius and the effluent groundwater 13 is characterized in that a considerable amount of foreign matter is removed in the process of passing through the groundwater and the water quality is relatively good.

The heat pump cooling / heating system using the outflow groundwater according to an embodiment of the present invention, which will be described below with reference to FIGS. 2 to 7, can be used not only when a building having a predetermined scale or more as described above is expanded and contracted, There is an advantage that it can be easily applied.

FIG. 2 is a view for explaining a heat pump cooling / heating system using outflow groundwater according to an embodiment of the present invention.

2, a heat pump cooling / heating system using an effluent groundwater according to an embodiment of the present invention includes a heat pump unit 100, a water supply unit 200, a filtering unit 300, and a water collecting structure 500 .

Although not shown, the heat pump unit 100 includes a pair of heat exchangers, a compressor, a four-way valve, and an expansion valve. The heat pump unit 100 is described in the above-mentioned prior art 1, And therefore, the description of the heat pump unit 100 itself will be omitted.

The water supply unit 200 is for supplying the outflow groundwater 13 through the filtering unit 300 to the heat pump unit 100. The water supply unit 200 is provided with a water supply pipe 210, water feed pumps 211 and 211a, A direct water pipe 220, a direct water pump 221, a water storage tank 240, and a water reservoir 250.

The filtering unit 300 is for filtering the foreign matter contained in the outflow groundwater 13 taken from the water collecting structure 500 and will be described in detail with reference to FIG. 3 below.

The water collecting structure 500 collects the outflow groundwater 13 which is installed in the ground 11 below the apartment house 400 and flows out from the ground 11. The water collecting structure 500 is provided with a first collecting unit 510 ), A second collection (520), a pipe (530), and the like.

The perforated pipe 530 is formed with a plurality of through holes 531 passing through from the outer circumferential surface to the inner circumferential surface, and is generally made of concrete or cement. It is common that the pore tube 530 is wrapped with the gravel 540 in order to prevent the inflow of the soil together with the outflow groundwater 13 to the through hole 531 when the ground hole is buried in the ground 11.

The effluent groundwater 13 flowing out of the ground 11 passes through the space between the gravels 540 and flows into the pipe 530 through the through hole 531.

The first collection fixture 510 and the second collection fixture 520 are installed to be connected to the oil pipe 530 and the inflow groundwater 13 flowing into the oil pipe 530 is connected to the first collection fixture 510, And collected in the receiving space formed in the crystal 520. [

Although not shown, a sewage connection pipe and a pump are installed in the first collection fixture 510 and the second collection fixture 520 to allow the collected outflow groundwater 13 to flow into the sewerage.

In this figure, it is illustrated that the water collecting structure 500 has two water collectors 510 and 520, but the number may be increased or decreased according to the size of the apartment 400.

A hot water tank 430 may be installed in a basement or machine room of the apartment house 400. The hot water tank 430 and the heat pump unit 100 include a first hot water circulation pipe 110 in which hot water supplied from the heat pump unit 100 flows into the hot water tank 430, And the second hot water circulation pipe 120 flowing from the heat pump unit 100 to the heat pump unit 100. In order to circulate the hot water, the hot water circulation pump 130 may be installed in the first hot water circulation pipe 110 or the second hot water circulation pipe 120.

The indoor unit 420 may be installed in the indoor space 410 of the apartment house 400 and the indoor unit 420 may include a first indoor circulation pipe 440 for circulating the hot water stored in the hot water tank 430, And the second indoor circulation pipe (450) to the hot water tank (430). The indoor circulation pump 441 may be installed in the first indoor circulation pipe 440 or the second indoor circulation pipe 450 to circulate hot water between the indoor unit 420 and the hot water tank 430. [

Fig. 3 is a view for explaining a fitting portion shown in Fig. The construction and operation of the heat pump cooling / heating system using the effluent groundwater according to an embodiment of the present invention will be described with reference to FIGS. 2 and 3. FIG.

2 and 3, the filtration unit 200 includes a first water intake pipe 310, a water intake pump 314, a filtering means 320, a second water intake pipe 310a, a second water intake valve 312, And a third intake valve 313 are included.

The filtering means 320 includes a filter housing 321 and a filter 322. The filter housing 321 may be formed in an empty container shape, and the filter 322 may be installed at a position between one side and the other side of the filter housing 321.

Here, the filter 322 is for filtering the foreign substances 323 contained in the outflow groundwater 13, and the filter 322 may be made of various materials such as a mesh made of stainless steel, a woven fabric made by weaving a fiber, . The type of the filter 322 can be selected to suit the amount and type of the foreign matter 323 that can be determined according to the characteristics of the region where the water intake structure 500 is installed. For reference, the foreign matter 323 contained in the runoff groundwater 13 may be an organism, sand, earth grains, or the like inhabiting the ground 11.

One end of the first water intake pipe 310 is connected to the water collection structure 500. One end of the first water intake pipe 310 is disposed in the first water collection 510 and is connected to the first water collection pipe 510, So that the collected groundwater 13 can be collected through the first water intake pipe 310. To this end, a water intake pump 314 is installed in the first water intake pipe 310.

The other end of the first intake pipe 310 is connected to one side of the filter housing 321 and the other end of the second intake pipe 310a is connected to the other side of the filter housing 321. The second intake pipe 310a, Is connected to the water supply unit (200).

Accordingly, when the water intake pump 314 is operated, the effluent groundwater 13 is taken out of the water collecting structure 500 and is passed through the first water intake pipe 31, through the filtering means 320 and the second water intake pipe 310a, (200).

In this process, the effluent groundwater 13 is filtered by the filtering means 320. That is, in the process that the outflow groundwater 13 flows into one side of the filter housing 321, passes through the filter 322, and then flows to the other side of the filter housing 321, the foreign matter 323 Is filtered by the filter 322 and collected in one side of the filter housing 323. [

The second intake valve 312 and the third intake valve 313 are installed in the second intake pipe 310a as shown. The second water intake valve 312 is provided at one side of the second water intake pipe 310a and the third water intake valve 313 is connected between the second water intake valve 312 and the other end of the second water intake pipe 310a Respectively.

One end of the direct water pipe 220 is connected to the second water intake pipe 310a and is connected to a position between the second water intake valve 312 and the third water intake valve 313. [ One end of the water pipe 250 is connected to the other end of the second water intake pipe 310a.

The second intake valve 312 and the third intake valve 313 open and close the second intake pipe 310a and are connected to the second intake pipe 310a after flowing through the filtering means 320, 13 may flow into the water pipe 220 or the water pipe 250 according to the opening and closing of the second water intake valve 312 and the third water intake valve 313.

More specifically, when the second intake valve 312 is opened and the third intake valve 313 is closed, the effluent groundwater 13 that has passed through the filtering means 320 is discharged to the outside Through the second intake pipe 310a to the direct water pipe 220 via the second intake valve 312. [

The other end of the direct water pipe 220 is connected to the other side of the water pipe 210 or connected to the heat pump unit 100 though not shown so that the outflow ground water 13 is supplied to the heat pump unit 100 .

On the other hand, when both the second water intake valve 312 and the third water intake valve 313 are opened, the outflow groundwater 13 that has passed through the filtering means 320 is discharged through the second water intake pipe 310a Through the second water intake valve 312 and the third water intake valve 313 to the water reservoir 250. [

The other end of the water pipe 250 is connected to the water storage tank 240 so that the outflow groundwater 13 flowing through the water pipe 250 can be stored in the water storage tank 240.

On the other hand, the direct water valve 221 provided in the direct water pipe 220 opens and closes the direct water pipe 220. Therefore, when the outflow groundwater 13 flowing through the filtering means 320 is to flow only to the water storage tank 240, the direct water valve 221 is closed so that the outflow groundwater 13 does not flow into the direct water pipe 220 So that the water can be flowed only to the water pipe 250.

One end of the water supply pipe 210 is connected to the water storage tank 240 and the other end is connected to the heat pump unit 100. Accordingly, when the water supply pumps 211 and 211a installed in the water supply pipe 210 are operated, the outflow groundwater 13 stored in the water storage tank 240 is supplied to the heat pump unit 100. [

A plurality of feed pumps 211 and 211a are provided in order to prepare for the occurrence of a failure in one of the feed pumps 211 and 211a and the number of the feed pumps 211 and 211a may be adjusted have.

The selection of the outflow groundwater 13 passing through the filtering means 320 through the direct water pipe 220 to flow into the heat pump unit 100 or to be stored in the water storage tank 240 is advantageous in that the water collecting structure 500 So that the embodiment can be suitably operated according to the amount of the underground effluent 13 taken out from the underground effluent 13.

That is, when the amount of the underground effluent 13 taken from the water collecting structure 500 is sufficient, the underground effluent 13 can be directly supplied to the heat pump unit 100 through the water straight pipe 200, When the heat pump unit 100 is not operated, the underground effluent 13 is stored in the water storage tank 240. When the heat pump unit 100 is operated, the water supply pump 211 And 211a are operated so that the underground effluent 13 stored in the heat pump unit 100 can be supplied.

For reference, the temperature of the underground effluent 13 taken from the water collecting structure 500 is kept relatively constant throughout the year like the underground 11. Therefore, in order to minimize the temperature of the outflow groundwater 13 stored in the water storage tank 240 due to the temperature of the ground, the water storage tank 240 may be covered with a heat insulating material or the like. This is to maximize the thermal efficiency of the heat pump unit 100 in the process of utilizing the temperature of the outflow groundwater 13 as a heat source of the heat pump unit 100.

If the foreign matter 323 is accumulated in the filtering housing 320 excessively, foreign matter 323 may adhere to one side of the filter 322, and the outflow groundwater 13 may not pass smoothly through the filtering means 320 have.

In this case, backwashing may be performed in order to remove the foreign substances 323 accumulated in the filtering means 320. For backwashing, the effluent groundwater 13 that has already passed through the filtering means 320 may flow from the other side of the filter housing 321 to one side, which will be described with reference to FIGS. 4 and 5. FIG.

For reference, backwashing can be performed by judging whether it is a periodic or backwashing situation.

As a method for judging that backwashing is necessary, a pressure gauge (not shown) is installed on both sides of the filtering means 320 so as to compare the pressures before and after the outflow groundwater 13 passes through the filtering means 320 Can be used. That is, as the differential pressure between the two pressure gages is increased, it can be deduced that many foreign substances 323 are accumulated in the filtering means 320.

Alternatively, the filter housing 321 may be made of a transparent material so that the amount of the accumulated foreign substances 323 can be visually confirmed directly, or illumination and a camera may be installed in the filter housing 321 to measure the amount of the remnant foreign matter 323 You can also check the amount.

4 and 5 illustrate a method of performing backwashing in the filtering part shown in FIG. 3. FIG. 4 shows a case where the taken-out groundwater 13 is directly used for backwashing, and FIG. And the outflow groundwater 13 stored in the tank 240 is used for backwashing.

4, the filtering unit 200 may further include a first water intake valve 311, a bypass pipe 340, a bypass valve 341, a drain pipe 330, and a drain valve 331.

The first intake valve 311 is installed between the other end of the first intake pipe 310 and the water collecting structure 500. The first intake valve 311 is connected to the intake pump 314 and the filtering means (Not shown). The first water intake valve 311 can open / close the first water intake pipe 310.

One end of the bypass pipe 340 may be connected between the water collecting structure 500 of the first water intake pipe 310 and the first water intake valve 311. As shown in the figure, And may be connected between the pump 314 and the first intake valve 311. The other end of the bypass pipe 340 is connected to the other side of the filter housing 321.

The bypass valve 341 is installed in the bypass pipe 340 to open and close the bypass pipe 340.

The drain pipe 330 is connected to one side of the filter housing 321 and the drain valve 331 is installed in the drain pipe 330 to open and close the drain pipe 330.

When the first intake valve 311 and the second intake valve 312 are closed and the bypass valve 341 and the drain valve 331 are opened, the operation of the intake pump 314 causes the first intake pipe 310 Flows into the other side of the filter housing 321 through the bypass pipe 340 as indicated by a solid line arrow.

The outflow groundwater 13 flowing into the other side of the filter housing 321 flows from the other side of the filter housing 321 to one side of the filter housing 321 through the filter 322, The foreign substance 323 attached to one surface of the filter housing 321 or accumulated on one side of the filter housing 321 is backwashed to the outside of the filter housing 321 through the drain pipe 330.

The drain pipe 330 may be connected to a sewage pipe (not shown) or a separate treatment facility so that the drainage water 13 mixed with the foreign substance 323 flows.

At this time, when foreign matter not shown in the outflow groundwater 13 is contained, it is attached to the other surface of the filter 322 or accumulates on the other side of the filter housing 321. After the backwashing is completed, The water can be introduced into the water supply unit 200 through the direct water pipe 220 or the low water pipe 250 when the water flows from one side of the filter housing 321 to the other side.

Therefore, the backwashing illustrated in Fig. 4 can be performed when the foreign matter contained in the effluent groundwater 13 flowing into the water intake pipe 310 is small or not so filtered by the filter 323.

5, the filtering part 200 may further include a backwash pipe 350, a backwash pump 351, a backwash valve 352, and a pressurization tank 353.

One end of the backwash pipe 350 is connected to the other end of the second intake pipe 310a and the other end of the backwash pipe 350 is connected to the other side of the filter housing 321. The backwash pump 350 and the backwash valve 352 are respectively installed in the backwash pipe 350.

The backwash pump 350 allows the effluent groundwater 13 stored in the reservoir tank 240 to flow into the other side of the filter housing 321 through the backwash pipe 350, The valve 352 opens and closes the backwash pipe 350.

The backwash valve 352 and the drain valve 331 are opened and the first intake valve 311, the second intake valve 312 and the third intake valve 313 are closed and the backwash pump 351 is closed When operated, the effluent groundwater 13 in the reservoir tank 240 flows into the other side of the filter housing 321 through the backwash pipe 350 as indicated by the solid arrows.

The outflow groundwater 13 flowing into the other side of the filter housing 321 flows from the other side of the filter housing 321 to one side of the filter housing 321 through the filter 322, The foreign substance 323 attached to one surface of the filter housing 321 or accumulated on one side of the filter housing 321 is backwashed to the outside of the filter housing 321 through the drain pipe 330.

Since the outflow groundwater 13 flowing from the storage tank 240 has already been stored in the storage tank 240 via the filtering means 320, the foreign matter 323 is removed. Therefore, even after the backwashing is completed, the foreign matter 323 is not accumulated in the other side of the filter housing 321.

The pressurizing tank 353 can be installed in the backwash pipe 350 as shown and the pressurizing tank 353 can be disposed at a position between the backwash pump 351 and the backwash valve 352.

A pressurizing means 354 may be provided in the pressurizing tank 353 and the pressurizing means 354 may be formed by sealing a compressible fluid such as air with a stretchable envelope such as a bellows.

The pressurizing tank 353 is attached to one side of the filter 322 or to the filter housing 321 by allowing the outlet groundwater 13 flowing into the filter housing 321 through the backwash pipe 350 to have a high and uniform pressure, So that the foreign matter 323 accumulated on one side of the container can be easily removed.

That is, when the backwash pump 351 is operated to cause the pressurizing means 354 to be compressed in the course of the flow of the outflow groundwater 13 to the other side of the filter housing 321, The pressure of the outflow groundwater 13 passing through the pressurizing tank 353 is increased so that the pressure of the pressurized pressurizing means 354 is increased and the pressure of the outflow groundwater 13 flowing in the pressurizing tank 353 is increased. Or the pressure fluctuation is alleviated.

As described with reference to FIGS. 4 and 5, the foreign matter 323 is removed by backwashing, so that the outflow groundwater 13 can be smoothly supplied to the heat pump unit 100.

Referring again to FIG. 2, the present embodiment may further include a plurality of pipes 230, a water pipe 260, and a heavy water valve 261.

One end of the plurality of pipes 230 may be connected to the heat pump unit 100 and the other end may be connected to the water collecting structure 500 or a sewage pipe not shown.

The plurality of pipes 230 are connected to the outflow groundwater 13 supplied to the heat pump unit 100 by the water supply unit 200 and one of the pair of heat exchangers (not shown) included in the heat pump unit 100 And the outflow groundwater 13 flowing out of the heat pump unit 100 again flows to the water collecting structure 500 or flows to the sewerage (not shown) after the heat exchange.

If the amount of the outflow groundwater 13 collected in the water collecting structure 500 is excessive and exceeds the capacity of the water collecting structure 500, the plurality of pipes 230 are connected to the sewerage, It is possible to prevent the groundwater 13 from further increasing.

If the amount of the outflow groundwater 13 collected in the water collecting structure 500 is insufficient or the amount of the outflow groundwater 13 is low, the outflow groundwater 13 may be introduced into the water collecting structure 500 through the plurality of pipes 230 So that the effluent groundwater 13 in the water collecting structure 500 can maintain an appropriate water level WL.

For reference, the temperature of the outflow groundwater 13 flowing back into the water collecting structure 500 through the plurality of pipes 230 is after heat exchange is performed by the heat pump unit 100, so that the temperature is collected from the ground 11 And differs from the temperature of the effluent groundwater (13).

The other end of the plurality of pipes 230 is connected to the first intake pipe 310 at a position as far as possible from the position where one side of the first intake pipe 310 is disposed in order to minimize the temperature change of the outflow groundwater 13 flowing into the first intake pipe 310 It is possible to arrange them at a spaced distance.

For example, when one side of the first water intake pipe 310 is disposed in the first water collection pipe 510 as shown in the drawing, the other end of the plurality of pipes 230 may be disposed in the second water collection pipe 520 .

Although not shown, in the case of a water intake structure having a plurality of water collecting structures such as the water collecting structures 510 and 520 of the water intake structure 500, one side of the first water intake pipe 310 and the other end of the plurality of pipes 230 So that they are linked to the farthest placed house modifications.

The heavy water valve 261 may be installed in the plurality of pipes 230 and the heavy water pipe 260 may be connected to one end of the heavy water pipe 260.

As described above, the effluent groundwater 13 is relatively good in quality of water. In the outflow groundwater 13 flowing through the plurality of pipes 230, the foreign matter 323 is removed by the filtering means 320, It can be good.

One end of the water pipe 260 is connected to the plurality of pipes 230 and the other end of the water pipe 260 is connected to the gray water of the common house 400 to connect the plurality of pipes 230 to each other. So that the effluent groundwater 13 flowing through the groundwater is utilized as the middle water, thereby saving water resources. For reference, heavy water can be used for cleaning water, washing water in a flush toilet, and the like.

For reference, by switching the four-way valve (not shown) included in the heat pump unit 100, the heat pump unit 100 can perform both heating and cooling. Accordingly, the heat pump unit 100 can store the cold water in the hot water tank 430 instead of the hot water, so that the indoor unit 420 can cool the indoor 410 of the multi-family house 400.

6 and 7 are views for explaining another example of the water collecting structure connected to the heat pump cooling / heating system using the effluent groundwater according to the embodiment of the present invention.

Referring to FIG. 6, the water collecting structure 600 includes collectors 610 and 620 and a pipe 630.

The water collecting structure 600 assumes a road water collection structure installed in the ground under the package 30 such as a road or an airport. The first collection wall 610 includes a manhole cover 611 And a drain manhole having a drain 621 formed at the edge of the road may be formed at the upper end of the second collection wall 620.

The other constitution including the through hole 631 and the gravel 640 is substantially similar to the case of the water collecting structure 500 described above, and therefore, a duplicate description will be omitted.

Fig. 7 assumes that the present embodiment is applied to a plurality of houses 401 and that the water collecting structure 700 is a load receiving structure provided under a load, that is, a riverbed. At this time, the heat pump unit 101 and the indoor unit 421 may be installed in the plurality of houses 401, respectively.

The water collecting structure 700 may further include a plurality of holes 740 and 650 and may further include a housing 710 surrounding the holes 740 and 750 and the gravel 760 disposed around the holes.

The collecting 730 is a collecting manhole 730 provided so that a part of the collecting collecting 730 is higher than the water level WL for ease of taking in water. The collecting 730 and the housing 710 installed in the load, Can be connected by a connector tube (720).

The water collecting structure 700 installed in the load can be utilized when there is a nearby river when a large amount of the outflow groundwater 13 is required for cooling and heating the plurality of houses 401 and the like.

For example, the housing 710 may be rigidly made of concrete or cement, and the housing 710 may have an inlet hole 711 through which the groundwater 13 flows.

The other constitution including the through hole 751 and the gravel 740 is substantially similar to the case of the water collecting structure 500 described above, and thus a duplicate description will be omitted.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the present invention as defined by the following claims. Other embodiments may easily be proposed by adding, changing, deleting, adding, or the like of components within the scope of the present invention, but this also falls within the scope of the present invention.

10: ground 11: underground
12: Digging hole 13: Runoff groundwater
20: Stream 23: River water
30: packing 100, 101: heat pump unit
110: first hot water circulation pipe 120: second hot water circulation pipe
130: hot water circulation pump 200:
210: water pipe 211, 211a: water pump
220: direct water pipe 221: direct water valve
230: Multiple pipes 240: Reservoir tank
250: low water pipe 260: heavy water pipe
261: Heavy water valve 300:
310: first intake pipe 310a: second intake pipe
311: first intake valve 312: second intake valve
313: third intake valve 314: intake pump
320: Fitting means 321: Filter housing
322: Filter 323: Foreign matter
330: Drain pipe 331: Drain valve
340: bypass pipe 341: bypass valve
350: backwash pipe 351: backwash pump
352: backwash valve 353: pressure tank
354: Pressurizing means 400: Apartment house
410: room 420, 421: indoor unit
430: hot water tank 440: first indoor circulation pipe
441: indoor circulation pump 450: second indoor circulation pipe
500: water collecting structure 510, 520: house correction
530: Pore tube 531: Through hole
540: Gravel 600: Water collecting structure
610, 620: Correction 611: Manhole cover
621: drain 630:
631: Through hole 640: Gravel
401: House 700: Sewage structure
710: housing 711:
720: connector 730: intake manhole
740, 750: Pore pipe 751: Through hole
760: Gravel

Claims (11)

A heat pump unit having a pair of heat exchangers, a compressor, a four-way valve, and an expansion valve; A water collecting structure buried in the ground to collect runoff groundwater; A filtering unit for filtering foreign matter contained in the collected effluent groundwater; And a water supply unit for supplying the outflow groundwater through the filtering unit to the heat pump unit, the system comprising:
The fitting portion
A first intake pipe having one side connected to the water collecting structure;
A filter housing having one side connected to the other end of the first intake pipe and a filter provided between one side and the other side of the filter housing;
A second intake pipe having one end connected to the other side of the filter housing and the other end connected to the water supply unit;
A first water intake valve installed between the other end of the first water intake pipe and the water collection structure for opening and closing the first water intake pipe;
One end connected to a portion between the water collecting structure of the first water intake pipe and the first water intake valve and the other end connected to the other side of the filter housing;
A bypass valve installed in the bypass pipe for opening and closing the bypass pipe;
A drain pipe connected to one side of the filter housing;
A drain valve installed in the drain pipe to open and close the drain pipe;
A second water intake valve installed in the second water intake pipe for opening and closing the second water intake pipe;
A third water intake valve provided between the other end of the second water intake pipe and the second water intake valve for opening and closing the second water intake pipe;
One end connected to the other end of the second intake pipe and the other end connected to the other side of the filter housing;
A backwash pump installed in the backwash pipe;
A backwash valve installed in the backwash pipe to open and close the backwash pipe; And
And a pressure tank installed in the backwash pipe,
The water-
A direct pipe connected at one end between the second water intake valve and the third water intake valve of the second water intake pipe and the other end connected to the heat pump unit;
A direct water valve installed in the direct water pipe for opening and closing the direct water pipe;
Reservoir tank;
A lower water pipe having one end connected to the other end of the second water intake pipe and the other end connected to the water storage tank;
A water supply pipe having one end connected to the water storage tank and the other end connected to the heat pump; And
And a water supply pump installed in the water supply pipe
Heat Pump Heating / Cooling System Using Outflow Groundwater.
delete delete delete delete delete delete The method according to claim 1,
A plurality of pipes connected at one end to the heat pump unit and at the other end to the water collecting structure to flow the outflow groundwater through the heat pump unit to the water collecting structure; And
A middle water pipe connected to the plurality of pipes;
Further comprising
Heat Pump Heating / Cooling System Using Outflow Groundwater.
The method according to claim 1,
The water collecting structure
At least one piercing pipe formed with a through hole penetrating from an outer circumferential surface to an inner circumferential surface and embedded in the ground; And
One or more dust collecting chambers connected to the perforated pipe to collect the effluent groundwater introduced into the perforated pipe;
Containing
Heat Pump Heating / Cooling System Using Outflow Groundwater.
10. The method of claim 9,
The water collecting structure
Further comprising a housing surrounding the pore tube
Heat Pump Heating / Cooling System Using Outflow Groundwater.
10. The method of claim 9,
On the upper side of the collector, a drain through which water flowing from the ground flows is formed
Heat Pump Heating / Cooling System Using Outflow Groundwater.

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