KR102269016B1 - Heat-Pump System - Google Patents

Abstract

The present invention relates to a high-efficiency heat pump system capable of exploring underground pipe and restoring geothermal energy, which comprises: a first line which has a first pump to supply heat source water from an underground heat exchange unit toward a first heat pump; a second line which discharges the heat source water, which has exchanged heat in the first heat pump to the underground heat exchange unit; a third line which connects a first three-way valve placed on the second line to a second heat pump, and supplies the heat source water, which has exchanged heat in the first heat pump, to the second pump; a fourth line which supplies the heat source water from the first line to the second heat pump through a second three-way valve placed on the third line; a fifth line which discharges the heat source water, which has exchanged heat in the second heat pump, to the underground heat exchange unit; a sixth line which connects a first refrigerant line, which connects the first heat pump to a first load-side heat exchange unit, and a second refrigerant line, which connects the second heat pump to a second load-side heat exchange unit; and a geothermal pipe exploring means which includes first layers which are placed parallelly toward the ground surface from a pipe of one of the underground heat exchange unit and the first line.

Description

High-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy {Heat-Pump System}

The present invention relates to a high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy, and a high-efficiency heat pump capable of detecting and restoring geothermal energy by exchanging heat medium to be supplied to the heat pump with geothermal, waste heat, and water heat sources. It's about the system.

Home and industrial energy sources that are generally used produce energy using fossil fuels such as petroleum or natural gas, or nuclear fuel. These energy sources not only pollute the environment including water quality and soil due to various pollutants generated in the combustion process, but also have limited reserves, so alternative energy development is being actively conducted.

Among these alternative energies, it is in the spotlight as green energy, and research on wind, solar heat, geothermal, etc., which have infinite energy sources, continues, and these energy sources can obtain energy with little effect on air pollution and climate change. While there are advantages, there is a disadvantage that the energy density is very low.

In particular, in order to obtain energy using wind power and solar heat, a large area must be secured along with the limitation of the installation site, and these devices have a small energy production capacity per unit device and also require a lot of cost for installation and maintenance.

However, geothermal, a member of alternative energy, is sometimes applied to air conditioners that provide heating and cooling using geothermal heat distributed in a certain range underground. It is known that up to 40% or more of energy can be saved compared to the device, and energy generation cost of 40 to 70% can be reduced. Such a geothermal heat exchange device enables stable heating and cooling and hot water supply operation within the year using geothermal heat maintained at about 10 to 20 ° C throughout the year through a ground heat exchanger buried at a certain depth underground.

However, the heat exchange device using geothermal heat has a problem in that it cannot continuously receive the required amount of heat from the underground heat source because the stress of the underground heat source increases during continuous operation for a long time. In addition, it is difficult to find the location or direction of the underground heat exchanger buried underground, which causes damage to the buried pipe or a safety accident during construction.

The present invention is intended to solve the above problems, and more specifically, by providing a plurality of heat pumps and accompanying cooling and heating or cooling and hot water supply operation with each other, the stress of the underground heat source is reduced through the heat source water discharged to the underground heat source. An object of the present invention is to provide a high-efficiency heat pump system capable of detecting non-accumulating underground piping and restoring geothermal energy.

In addition, the present invention provides a geothermal pipe detection that can easily detect the position of another pipe branching from the underground pipe or another pipe disposed under the buried pipe, or the position of the joint area connecting the buried pipe and the pipe. Another object of the present invention is to provide a high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy having means.

A high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy according to the present invention for performing the above object is a first line in which a first pump is provided to supply heat source water from an underground heat exchange unit to a first heat pump direction. ; a second line for discharging the heat source water heat-exchanged in the first heat pump to the underground heat exchange unit; a third line connecting a first three-way valve provided on the second line and a second heat pump to supply the heat source water heat-exchanged in the first heat pump to the second heat pump; a fourth line for supplying heat source water from the first line to the second heat pump through a second three-way valve provided on the third line; a fifth line for discharging the heat source water heat-exchanged in the second heat pump to the underground heat exchange unit; a sixth line connecting a first refrigerant line connecting the first heat pump and the first load-side heat exchange unit and a second refrigerant line connecting the second heat pump and the second load-side heat exchange unit; and a geothermal pipe detection means including a first layer disposed side by side in a direction to the ground surface from any one of the underground heat exchange unit or the first line.

The high-efficiency heat pump system capable of detecting the underground pipe and restoring geothermal energy may further include a third three-way valve disposed on the sixth line and selectively connecting the first refrigerant line and the second refrigerant line.

The high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy may further include a second pump provided on the third line between the first three-way valve and the second three-way valve.

During the cooling operation of the first heat pump, the high-temperature heat source water heat-exchanged in the first heat pump is supplied to the second heat pump through the third line, and heat exchanged on the second load side through the second heat pump. Wealth can supply hot water.

The heat source water discharged from the second heat pump may have a lower temperature than the heat source water provided from the first heat pump.

The underground heat exchange unit may recover underground heat source energy through the heat source water discharged from the second heat pump.

The third line may be opened when the first heat pump performs a cooling operation and the second heat pump operates a heating or hot water supply operation.

In addition, the present invention is provided with a first pump, the first line for supplying heat source water from the underground heat exchange unit to the first heat pump to the fourth heat pump direction, respectively; a second line for collecting heat source water heat-exchanged in the first to fourth heat pumps and discharging it to the underground heat exchange unit; and a third branch branched from the second line and connected to the first line, and supplying some heat source water discharged from at least one of the first to third heat pumps to the fourth heat pump. It provides a high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy, comprising: a line.

The first line includes lines 1-1 to 1-4 connecting the first to fourth heat pumps from the underground heat exchange unit, respectively, and the second line includes each of the first heat pumps. It may include line 2-1 to line 2-4 connecting the underground heat exchange unit from the pump to the fourth heat pump.

The third line may be branched from the second line-3 and connected to the line 1-4, and a first three-way valve may be provided at an intersection of the third line and the line 1-4.

The first to fourth lines may include a second pump disposed between the first three-way valve and the fourth heat pump to compensate the pressure of the heat source water to be supplied to the fourth heat pump.

The third line may connect a first three-way valve provided at one end branched from the second line-3 and a second three-way valve provided at the other end intersecting the lines 1-4.

The third line may include a second pump disposed between the first three-way valve and the second three-way valve to compensate for the pressure of the heat source water to be supplied to the fourth heat pump.

The third line connects a first three-way valve provided at one end branched from the second line-3 and a second three-way valve provided at the other end where the first three-way valve and lines 1-4 intersect. 3-1 line, a third three-way valve provided at one end branched from the 2-1 line, and a fourth three-way valve provided at the other end where the third three-way valve and the 2-1 line intersect It may include a 3-2 line connecting the valve.

The 3-1 line and the 3-2 line may include a second pump for compensating the pressure of the heat source water to be supplied to the second heat pump and the fourth heat pump, respectively.

The high-efficiency heat pump system capable of detecting an underground pipe and restoring geothermal energy further includes a first load-side heat exchange unit and a second load-side heat exchange unit connected to the first to fourth heat pumps, It may further include a first refrigerant line to a fourth refrigerant line selectively transferring the refrigerant between the fourth heat pump and the first load-side heat exchange unit or the second load-side heat exchange unit.

The high-efficiency heat pump system capable of detecting underground pipes and restoring geothermal energy may further include a fifth refrigerant line connecting the second refrigerant line and the fourth refrigerant line.

The second refrigerant line includes a fifth three-way valve provided at a portion intersecting the fifth refrigerant line, and the fourth refrigerant line selectively supplies refrigerant to the first load-side heat exchange unit or the second load-side heat exchange unit. 6 may include a three-way valve.

When the first heat pump and the third heat pump are performing a cooling operation through the first load-side heat exchange unit, high-temperature heat source water is supplied to the second heat pump and the fourth line through the 3-1 line and the 3-2 line, respectively. The heat pump may supply hot water, and the second load-side heat exchange unit may supply hot water through the second heat pump and the fourth heat pump.

In the geothermal pipe detection means, the first layer is disposed from at least a portion of the underground heat exchange unit, the first line, the second line, and the fifth line in the direction of the ground surface, and is disposed for each set area of the pipe, and is disposed from the pipe to the ground surface. It may include at least one or more confirmation rods extending in the direction and an identification plate disposed in an area adjacent to the ground surface on the confirmation rod.

The confirmation rod is buried at a set depth between the ground surface from the pipe, and the embedding depth may be displayed for each unit depth formed at equal intervals.

The confirmation rod includes a first frame to which the identification plate is coupled, a second frame that enters and exits so that the length can be changed from the first frame, and a clamp disposed at a lower end of the second frame and coupled to the pipe, The first frame may be disposed to pass through at least the first layer.

The identification plate may include a plate-shaped plate disposed parallel to the ground surface, and a third layer made of a metal material corresponding to the shape of the plate.

One cross section of the plate may be formed of any one of a circle, an ellipse, and a polygon of a triangle or more.

The third layer may be formed of a plurality of concentric patterns having the same center and different diameters or side lengths.

The plurality of concentric patterns may be formed to have different cross-sectional areas or densities according to at least one data of the type, use, depth, diameter, material, and embedding schedule of the pipe.

The identification plate may be disposed at different heights corresponding to the type of the pipe on the confirmation rod.

The confirmation rod may have a groove formed for each set unit length, and the identification plate may be provided with a protrusion corresponding to the groove.

The groove may include a vertical groove formed along the longitudinal direction of the confirmation rod, and a horizontal groove formed along the circumference of the confirmation rod in a direction perpendicular to the vertical groove for each set unit length. The geothermal pipe detection means may include a second layer of a metal material provided on the first layer.

The second layer may have a split pattern spaced apart from the first layer or the pipe at a set interval along a longitudinal direction of the pipe.

According to the high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy according to the present invention,

First, when the first heat pump operates for cooling and the second heat pump operates for heating (or hot water supply), the heat source water discharged from the second heat pump is supplied to the underground heat exchanger to restore the stress of the underground heat source,

Second, since the stress of the underground heat source is recovered, the temperature of the heat source water to be supplied to the first heat pump can be lowered, thereby improving the COP of the first heat pump,

Third, since the first heat pump and the second heat pump can be operated simultaneously or individually, there is no need for a separate hot water supply heat pump;

Fourth, it is possible to compensate for the pressure of the heat source water discharged from the first heat pump, thereby preventing a safety accident from occurring due to insufficient flow rate of the second heat pump.

Fifth, it is possible to easily detect the position or direction of the non-metallic pipe through the metal detector,

Sixth, since the second layer includes a split pattern or an identification pattern, it is possible to check the information of the buried pipe,

Seventh, it is possible to prevent safety accidents from occurring in the construction process by easily acquiring information about buried piping through the second or third layer,

Eighth, the branching area or joint area of the buried pipe can be easily identified, so maintenance is easy even when leaks are detected.

Ninth, the height of the identification plate can be adjusted even if the depth or location of the buried pipe is different,

Tenth, there is an effect that can be combined by adjusting the height of the identification plate on the confirmation rod.

1 is a reference diagram schematically illustrating a geothermal heat pump system according to a first embodiment of the present invention.
FIG. 2 is a reference diagram schematically illustrating the flow of heat source water and refrigerant of the geothermal heat pump system shown in FIG. 1 .
3 is a reference diagram schematically illustrating a geothermal heat pump system according to a second embodiment of the present invention.
4 is a reference view showing a state in which the underground heat exchange unit of the present invention is buried.
5 is a reference diagram schematically illustrating a geothermal heat pump system according to a third embodiment of the present invention.
6 is a reference diagram schematically illustrating a geothermal heat pump system according to a fourth embodiment of the present invention.
7 is a reference diagram schematically illustrating a geothermal heat pump system according to a fifth embodiment of the present invention.
8 is a perspective view illustrating a geothermal pipe detection means provided on each line connected to an underground heat exchange unit or an underground heat exchange unit of a high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy according to an embodiment of the present invention.
9 is a side view showing the geothermal pipe detection means shown in FIG. 8 from the side.
10 and 11 are enlarged perspective views illustrating a state in which the geothermal pipe detecting means shown in FIG. 8 is coupled to the pipe.
12 is a reference diagram showing various embodiments of the third layer of the geothermal pipe detection means shown in FIG. 11 .
13 is an enlarged reference view showing the coupling portion of the geothermal pipe detection means shown in FIG. 8 .

Hereinafter, preferred embodiments of the present invention will be described so that those of ordinary skill in the art can easily implement them with reference to the accompanying drawings. In the accompanying drawings, it should be noted that the same reference numbers are used as much as possible when indicating the same configuration in other drawings. In addition, in the description of the present invention, when it is determined that a detailed description of a related known function or a known configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, certain features presented in the drawings are enlarged, reduced, or simplified for ease of description, and the drawings and components thereof are not necessarily drawn to scale. However, those skilled in the art will readily appreciate these details.

1 is a reference diagram schematically illustrating a geothermal heat pump system according to a first embodiment of the present invention, and FIG. 2 is a reference diagram schematically illustrating the flow of heat source water and refrigerant of the geothermal heat pump system shown in FIG. to be.

The high-efficiency heat pump system 100 capable of detecting underground piping and restoring geothermal energy according to the first embodiment of the present invention uses geothermal heat as a heat source and heat-exchanged heat source water in the ground through the first heat pump (1HP) to be supplied. Heating and cooling may be provided to the first load-side heat exchange unit 1HE connected to the heat pump 1HP. In addition, the geothermal heat pump system includes a second heat pump (2HP) and a second load side heat exchange unit (2HE), and is heated and cooled through the second load side heat exchange unit (2HE) through the same path as the first heat pump (1HP) may be provided, or hot water (hot water) may be provided.

Here, the first heat pump 1HP and the second heat pump 2HP indirectly exchange heat with the heat source water supplied from the ground and the heat medium supplied from the load-side heat exchange units 1HE and 2HE, so that the heat medium from the heat source water has a relatively high temperature. Alternatively, cooling, heating, and hot water supply may be provided to the load-side heat exchange unit by receiving low-temperature thermal energy.

The heat source water supplied from the ground may be groundwater, and any one of water, air, and refrigerant (R-22, R-134a, or R-410) is selectively applied as the heat medium circulating between the heat pump and the load-side heat exchanger. can Hereinafter, the heat source water is groundwater, and a heat medium applied as a refrigerant will be described as an example.

The heat exchange structure of the heat pumps (1HP, 2HP) continuously compresses, condenses, and expands the refrigerant during cooling operation, and allows the load-side heat exchange units (1HE, 2HE) to evaporate the refrigerant in the room to provide cooling through a general refrigeration cycle. can be done In addition, during the heating operation, general heating or hot water supply may be performed through the condensing of the refrigerant in the room by the load-side heat exchange unit through the reverse cycle of the refrigeration cycle.

That is, during the cooling operation, the compressor 20, the four-way valve 30, the heat source side heat exchange unit (3HE, 4HE), the expansion valve 40, the load side heat exchange unit (1HE, 2HE), the four-way valve 30, the compressor ( 20), the refrigerant circulates so that cooling can be achieved through the refrigerant in a low-temperature state in the load-side heat exchanger. In addition, during heating operation, the compressor (20), the four-way valve (30), the load side heat exchange unit (1HE, 2HE), the expansion valve (40), the heat source side heat exchange unit (3HE, 4HE), the four-way valve (30), the compressor ( 20), the refrigerant circulates so that heating or hot water supply can be made through the refrigerant in a high temperature state in the load-side heat exchange unit. Accordingly, the heat source side heat exchange units 3HE and 4HE and the load side heat exchange units 1HE and 2HE may serve as an evaporator or a condenser according to cooling and heating operations, respectively.

At this time, the heat source water is heat-exchanged with the heat source from the ground, which may be made through the underground heat exchange unit (10). Of course, the heat source may be supplied through groundwater supplied from the ground or water branched from waterworks, rivers, or seawater. In the underground heat exchange unit 10, a plurality of 'U'-shaped tubes are buried at a set depth underground, and heat source water that has absorbed the heat source (thermal energy) of the geothermal heat through the underground heat exchange unit 10 is supplied to the heat pump. can The underground heat exchange unit 10 is preferably installed at a depth at which the annual average temperature is maintained constant in the underground, and can maintain a temperature range of about 13 to 18 °C. Therefore, since there is a large temperature difference between summer and winter by domestic standards, it is possible to provide heating and cooling or hot water supply at low cost through energy from underground heat sources by utilizing such a large temperature difference.

Both of the above-described first heat pump 1HP and second heat pump 2HP may provide cooling or heating at the same time, and one may provide cooling operation and the other may provide heating or hot water supply operation, respectively.

The high-efficiency heat pump system 100 capable of detecting underground piping and restoring geothermal energy according to the first embodiment of the present invention includes an underground heat exchange unit 10, a first heat pump 1HP, a second heat pump 2HP, and a second heat pump system 100. It may include a first load side heat exchange unit 1HE, a second load side heat exchange unit 2HE, and a first line 110 to a sixth line 160 connecting them to each other.

First, the first line 110 connects the first heat pump 1HP from the underground heat exchange unit 10 . A first pump 1P providing a supply pressure of the heat source water may be provided on the first line 110 . Accordingly, the first line 110 supplies the heat source water in a state in which the heat source water is heat-exchanged (state having energy) in the ground through the underground heat exchange unit 10 to the first heat pump 1HP.

The second line 120 connects the first heat pump 1HP and the underground heat exchange unit 10 . The second line 120 is a line for discharging the heat source water as opposed to the first line 110 supplying the heat source water. The heat source water discharged through the second line 120 is discharged from the first heat pump 1HP in a state in which the heat source water is heat exchanged (energy is consumed). A first three-way valve 121 may be provided on the second line 120 .

The third line 130 connects the first three-way valve 121 and the second heat pump 2HP. The heat source water discharged from the first heat pump (1HP) may be discharged to the underground heat exchange unit 10 through the second line 120, or according to the opening and closing operation of the first three-way valve 121, the third line ( 130) may be supplied back to the second heat pump 2HP. The heat source water supplied to the second heat pump 2HP through the third line 130 has a higher temperature than the heat source water supplied through the first line 110 during the cooling operation of the first heat pump 1HP. can A second three-way valve 131 may be provided on the third line 130 .

The fourth line 140 is branched from the first line 110 to connect the second heat pump 2HP. At this time, the fourth line 140 passes through the second three-way valve 131 and is connected to the second heat pump 2HP. Accordingly, the relatively high-temperature heat source water discharged from the first heat pump 1HP selectively according to the opening and closing operation of the second three-way valve 131 may be supplied to the second heat pump 2HP, or the first line ( The low-temperature heat source water from 110 may be supplied to the second heat pump 2HP. The description of the heat source water as high temperature and low temperature can be understood as a relative concept for indicating the state before or after heat exchange.

The fifth line 150 connects the second heat pump 2HP and the underground heat exchange unit 10 . The fifth line 150 may discharge the heat source water heat-exchanged in the second heat pump 2HP to the underground heat exchange unit 10 .

The sixth line 160 includes a first refrigerant line 1L connecting the first heat pump 1HP and the first load side heat exchange unit 1HE, and the second heat pump 2HP and the second load side heat exchange unit 2HE. ) is connected between the second refrigerant line (2L) connecting the. Accordingly, the sixth line 160 may selectively supply the refrigerant heat-exchanged in the second heat pump 2HP as a refrigerant line to the first load-side heat exchange unit 1HE or the second load-side heat exchange unit 2HE. A third three-way valve 161 may be provided on the sixth line 160 . At this time, the third three-way valve 161 is preferably disposed at the intersection of the sixth line 160 and the second refrigerant line (2L), and the sixth line 160 is connected to the first refrigerant line (1L) or the second refrigerant line (1L). 2 When spaced apart from the refrigerant line (2L), a general valve for controlling the opening/closing operation in either direction may be applied.

The geothermal heat pump system shown in FIG. 2 represents, as an example, a state in which the first heat pump 1HP operates for cooling and the second heat pump 2HP operates for hot water supply (or heating), and at this time, the temperature of each line is It is presented as an example.

The first line 110 supplies heat source water of 25° C., and heat exchanges with the refrigerant in the first heat source side heat exchange unit 3HE to supply the refrigerant at 7° C., so that the first load side heat exchange unit 1HE provides cooling. After that, the refrigerant at 12°C is recovered. At this time, the first heat source side heat exchange unit 3HE discharges heat source water of about 30° C. as the temperature of the heat source water increases, and supplies it to the second heat source side heat exchange unit 4HE through the third line 130 . Of course, the third line 130 may be opened through the first three-way valve 121 when the first heat pump 1HP operates for cooling and the second heat pump 2HP operates for hot water supply, and the first heat pump Both (1HP) and the second heat pump (2HP) may be closed during cooling or heating operation.

Then, the second heat pump 2HP requires high-temperature heat source water to provide hot water. Since the heat source water discharged from the first heat pump 1HP has a relatively high temperature, the second heat pump 2HP supplies hot water. It can be effective for driving. In other words, when low-temperature heat source water is supplied during cooling operation, the COP (Coefficient of performance), expressed as the ratio of the freezing effect and compression work, increases. Therefore, when cooling and hot water supply are used simultaneously in summer, the COP of the first heat pump 1HP and the second heat pump 2HP can be maximally improved. In other words, since the heat source water discharged from the first heat pump 1HP is discharged at a relatively high temperature, the COP is improved during the hot water supply operation in the second heat pump 2HP, and the heat source discharged from the second heat pump 2HP is Since the water is discharged at a relatively low temperature, stress due to heat exchange is not accumulated in the underground heat exchange unit 10, but rather is recovered while lowering the temperature of the heat source water to be supplied to the first heat pump (1HP). 1HP), the COP according to the cooling operation can also be improved.

Of course, since the first heat pump 1HP and the second heat pump 2HP can be operated simultaneously or individually, there is an effect that separate equipment for hot water supply or a machine room is not required.

3 is a reference diagram schematically illustrating a geothermal heat pump system according to a second embodiment of the present invention. Hereinafter, the same reference numerals as the aforementioned reference numerals may indicate the same components.

The high-efficiency heat pump system 200 capable of detecting underground piping and restoring geothermal energy according to the second embodiment of the present invention may further include a second pump 2P on the third line 130 .

The heat source water supplied to the first heat pump 1HP through the first line 110 generates a differential pressure in the process of heat exchange inside the first heat pump 1HP. When the pump (2HP) is continuously supplied, it may be unreasonable to operate as the heat source water flow rate supply of the second heat pump (2HP) is insufficient. If the overload is extreme, the operation of the second heat pump 2HP may be stopped. Accordingly, the second pump 2P may be provided on the third line 130 to compensate for the pressure of the heat source water supplied to the second heat pump 2HP. The second pump (2P) has the advantage of minimizing the cost and space for pressure compensation of the third line (130) because a smaller capacity or a smaller pump can be applied compared to the performance of the first pump (1P). have.

Descriptions of components not described in FIG. 3 may be substituted with those described in the first embodiment of the present invention.

Therefore, according to the high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy according to the present invention, when the first heat pump operates for cooling and the second heat pump operates for heating (or hot water supply), discharge from the second heat pump As the heated heat source water is supplied to the underground heat exchange unit, the stress of the underground heat source can be restored, and since the stress of the underground heat source is recovered, the temperature of the heat source water to be supplied to the first heat pump can be lowered, thereby improving the COP of the first heat pump Since the first heat pump and the second heat pump can be operated simultaneously or separately, there is no need for a separate hot water supply heat pump, and the pressure of the heat source water discharged from the first heat pump can be compensated, so that the second heat pump It has the effect of preventing safety accidents from occurring due to insufficient flow.

4 is a reference diagram illustrating a state in which the underground heat exchanger of the present invention is buried, and FIG. 5 is a reference diagram schematically illustrating a geothermal heat pump system according to a third embodiment of the present invention.

The buried pipe 10 installed underground is buried in the first soil layer 11 , and the second soil layer 12 is stacked so as to have a set height on the upper surface of the first soil layer 11 . At this time, the buried pipe 10 is disposed inside the second soil layer 12 , and the third soil layer 13 is laminated thereon. The third soil layer 13 may be a road layer such as concrete or asphalt. Of course, depending on the depth or location of the buried pipe 10, the first soil layer 11 to the third soil layer 13 may be omitted or additionally added. For example, pipe protection sand or the like may be applied to the first soil layer 11 to the third soil layer 13 . Hereinafter, the buried pipe 10 will be described as an example in which the underground heat exchange unit or lines connected to the underground heat exchange unit are buried.

The high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy according to an embodiment of the present invention uses geothermal heat as a heat source and the heat source water exchanged from the underground heat exchange unit 10 is the first heat pump (1HP) to the fourth heat pump ( 4HP).

This geothermal heat pump system provides heating, cooling, or hot water supply (hot water) to the first load side heat exchange unit 1HE and the second load side heat exchange unit 2HE through a heat medium circulating the first heat pump 1HP to the fourth heat pump 4HP. ) can be optionally provided.

The first heat pump 1HP to the fourth heat pump 4HP may be simultaneously operated in a cooling or heating mode (including hot water supply), and at least one of the heat pumps may be individually operated in a different mode. For example, the first heat pump 1HP to the third heat pump 3HP may operate in the cooling mode, and the fourth heat pump 4HP may operate in the hot water supply mode.

Here, the first heat pump 1HP to the fourth heat pump 4HP indirectly exchange heat with the heat source water supplied from the ground and the heat medium supplied from the load-side heat exchange units 1HE and 2HE, so that the heat medium from the heat source water is relatively high in temperature. Alternatively, cooling, heating, and hot water supply may be provided to the load-side heat exchange unit by receiving low-temperature thermal energy.

The high-efficiency heat pump system 300 capable of detecting underground piping and restoring geothermal energy according to the third embodiment of the present invention includes an underground heat exchange unit 10, a first heat pump 1HP to a fourth heat pump 4HP, and the second It may include a first load side heat exchange unit 1HE, a second load side heat exchange unit 2HE, and a first line 310 to a third line 330 and a fourth line 340 connecting them to each other.

First, the first line 310 is connected to supply heat source water from the underground heat exchange unit 10 to the first heat pump 1HP to the fourth heat pump 4HP. A first pump 1P providing a supply pressure of the heat source water may be provided on the first line 310 . Accordingly, the first line 310 converts the heat source water in a state in which the heat source water is heat-exchanged (state having energy) in the underground through the underground heat exchange unit 10 to the first heat pump (1HP) to the fourth heat pump (4HP). supplied with The first line 310 includes a 1-1 line 311 to a 1-4 line 314 connecting each of the four heat pumps from the underground heat exchange unit 10 . Here, the 1-1 lines 311 to 1-4 lines 314 may overlap or merge in some sections.

The second line 320 collects and discharges heat source water from which heat exchange has been completed, discharged from the first heat pump 1HP to the fourth heat pump 4HP, to the underground heat exchange unit 10 . The second line 320 is a line for discharging the heat source water as opposed to the first line 310 for supplying the heat source water. The heat source water discharged through the second line 320 is discharged from each heat pump in a state in which the heat source water is heat exchanged (energy is consumed). The second line 320 includes a 2-1 line 321 to a 2-4 line 324 connecting the underground heat exchange unit from each heat pump. Here, the 2-1 line 321 to the 2-4 line 324 may overlap or merge in some sections.

The third line 330 is branched on the second line 320 and connected to at least one of the first lines 310 to be connected to any one of the first heat pumps 1HP to 3HP. Connect to supply the heat source water discharged from the fourth heat pump (4HP). For example, the third line 330 may supply heat source water after heat exchange discharged from the third heat pump 3HP back to the fourth heat pump 4HP.

In addition, the heat source water discharged from the first heat pump 1HP and the second heat pump 2HP may be discharged to the underground heat exchange unit 10 through the second line 320 . The heat source water supplied to the fourth heat pump 2HP through the third line 330 has a higher temperature than the heat source water supplied through the first line 310 during the cooling operation of the third heat pump 1HP. can The third line 330 may be provided with a first three-way valve 1V at a portion crossing the first through fourth lines 314 .

Accordingly, the low-temperature heat source water from the underground heat exchange passage 10 through the 1-4 lines 314 flows into the fourth heat pump 4HP according to the opening/closing direction of the first three-way valve 1V, or the third heat The high-temperature heat source water discharged from the pump 3HP may be introduced into the fourth heat pump 4HP through the third line 330 . The description of the heat source water as high temperature and low temperature can be understood as a relative concept for indicating the state before or after heat exchange. When the heat source water discharged from the third heat pump (3HP) flows into the fourth heat pump (4HP), the second pump (2P) for compensating the pressure of the heat source water is provided in the line 1-4 (314). can The second pump 2P may be stopped when heat source water is supplied from the underground heat exchange unit 10 to the fourth heat pump 4HP through the 1-4 lines 114 .

The first heat pump (1HP) to the fourth heat pump (4HP) and the first load side heat exchange unit (1HE) to the second load side heat exchange unit (2HE) are respectively a first refrigerant line (341) to a fourth refrigerant line (344) connected through Each refrigerant line may also overlap or merge at a portion adjacent to each load-side heat exchange unit. The first refrigerant line 341 to the fourth refrigerant line 344 may selectively connect the first load side heat exchange unit 1HE and the second load side heat exchange unit 2HE.

For example, the fourth refrigerant line 344 may connect the first load side heat exchange unit 1HE or the second load side heat exchange unit 2HE from the fourth heat pump 4HP. A second three-way valve 2V may be provided at a portion where the fourth refrigerant line 344 branches into the first load-side heat exchange unit 1HE and the second load-side heat exchange unit 2HE, respectively. The second three-way valve 2V may be selectively opened and closed in the direction of the first load side heat exchange unit 1HE or the second load side heat exchange unit 2HE according to the cooling or heating (hot water supply) operation of the fourth heat pump 4HP. .

The high-efficiency heat pump system 300 capable of detecting underground piping and restoring geothermal energy according to the first embodiment of the present invention has a structure in which a plurality of heat pumps are provided. By being supplied to, it is possible to at least partially recover the stress of the underground heat source of the underground heat exchange unit through the heat source water discharged from the hot water supply heat pump. In addition, it is possible to lower the temperature of the heat source water to be supplied to the other cooling heat pumps (eg, the first heat pump to the third heat pump) except for the heat pump for hot water supply, so that the COP of the heat pump that receives the heat source water from the underground heat exchange unit. has the effect of improving

6 is a reference diagram schematically illustrating a geothermal heat pump system according to a fourth embodiment of the present invention.

Referring to FIG. 6 , the high-efficiency heat pump system 400 capable of detecting underground piping and restoring geothermal energy according to the fourth embodiment of the present invention is different from the above-described first embodiment in the connection structure of the third line. There is this. Hereinafter, the same reference numerals as the aforementioned reference numerals denote the same components.

A third line 430 is provided between the third line 423 of the third heat pump 3HP and the fourth line 414 of the fourth heat pump 4HP.

The third line 430 is the intersection of the first three-way valve 1V provided at one end branched from the 2-3rd line 423, and the 1-4th line 414 and the third line 430. A second three-way valve (2V) provided at the other end is connected.

In the high-efficiency heat pump system 400 capable of detecting underground piping and restoring geothermal energy according to the fourth embodiment of the present invention, only the heat source water discharged from the third heat pump 3HP is supplied to the fourth heat pump 4HP, Heat source water may be supplied to the fourth heat pump 4HP through the 1-4 line 414 . That is, in the third embodiment, a portion of the heat source water discharged from the first to third heat pumps may be re-supplied to the fourth heat pump, but in the fourth embodiment, the third heat pump 3HP and the fourth A heat pump (4HP) may re-supply heat source water on a one-to-one basis. Therefore, the heat source water discharged from the first heat pump 1HP and the second heat pump 2HP is discharged to the underground heat exchange unit 10 through the 2-1 line 421 and the 2-2 line 422, respectively. do. In addition, a second pump 2P for compensating for the pressure of the heat source water discharged from the third heat pump 3HP may be provided on the third line 430 .

In the structure of the high-efficiency heat pump system 400 capable of detecting underground piping and restoring geothermal energy according to the fourth embodiment of the present invention, the third heat pump 3HP performs a cooling operation, and the fourth heat pump 4HP operates a hot water supply operation. If this is necessary, since the first three-way valve 1V is opened in the direction of the third line 430 , it is possible to reduce the decrease in COP due to the change in thermal energy of the heat source water on the third line 230 .

That is, in the third embodiment, since the heat source water discharged from the first to third heat pumps is combined and some of them are supplied to the fourth heat pump, more heat energy loss may occur in the process of re-supplying the heat source water. , in the fourth embodiment, the heat source water discharged from the third heat pump 3HP can be directly supplied to the fourth heat pump 4HP, thereby shortening the process of re-supplying the heat source water, thereby reducing heat energy loss. . In addition, there is an advantage that the second pump 2P having a smaller capacity can be applied to the third line 430 compared to the second pump according to the third embodiment.

The first heat pump (1HP) to the fourth heat pump (4HP) and the first load side heat exchange unit (1HE) to the second load side heat exchange unit (2HE) are respectively a first refrigerant line (441) to a fourth refrigerant line (444) connected through Each refrigerant line may also overlap or merge at a portion adjacent to each load-side heat exchange unit. The first refrigerant line 441 to the fourth refrigerant line 444 may selectively connect the first load side heat exchange unit 1HE and the second load side heat exchange unit 2HE.

For example, the fourth refrigerant line 444 may connect the first load side heat exchange unit 1HE or the second load side heat exchange unit 2HE from the fourth heat pump 4HP. A third three-way valve 3V may be provided at a portion where the fourth refrigerant line 444 branches into the first load-side heat exchange unit 1HE and the second load-side heat exchange unit 2HE, respectively. The third three-way valve 3V may be selectively opened or closed in the direction of the first load side heat exchange unit 1HE or the second load side heat exchange unit 2HE according to the cooling or heating (hot water supply) operation of the fourth heat pump 4HP. .

7 is a reference diagram schematically illustrating a geothermal heat pump system according to a fifth embodiment of the present invention.

A high-efficiency heat pump system 500 capable of detecting underground piping and restoring geothermal energy according to a fifth embodiment of the present invention includes a first three-way valve (1V) provided in a portion branched from the second 2-3 line 523, The 3-1 line 531 and the 2-1 line 521 connecting the second three-way valve 2V provided at the intersection of the first three-way valve 1V and the 1-4 line 514 are ) to connect the third three-way valve (3V) provided in the branched portion, and the fourth three-way valve (4V) provided at the intersection of the third three-way valve (3V) and the 2-1 line 121 A 3-2 line 532 is included. That is, the first heat pump 1HP is paired with the second heat pump 2HP, and the third heat pump 3HP is paired with the fourth heat pump 4HP to simultaneously operate in a cooling or heating mode or , or at least one of the first heat pump 1HP to the fourth heat pump 4HP may perform individual operations in different modes.

In other words, in the high-efficiency heat pump system 500 capable of detecting underground piping and restoring geothermal energy according to the fifth embodiment of the present invention, the first heat pump 1HP to the fourth heat pump 4HP provide cooling and hot water supply. It can be driven in a 1:1 correspondence. Where cooling and hot water supply are required at the same time, energy efficiency can be maximized, and maintenance costs can be minimized. In this embodiment, although four heat pumps are described as an example, it is applicable if at least two or more heat pumps capable of 1:1 correspondence are installed.

In addition, the third lines 531 and 532 have a 3-1 line 531 disposed adjacent to the first heat pump 1HP and the second heat pump 2HP, respectively, and the third heat pump 3HP and A 3-2 line 532 may be disposed adjacent to the fourth heat pump 4HP. In addition, in the 3-1 line 531 and the 3-2 line 532 , a second pump 2P compensating for the pressure of the heat source water to be supplied to the second heat pump 2HP or the fourth heat pump 4HP is provided. ) may be provided.

The first heat pump 1HP to the fourth heat pump 4HP are connected to the first load side heat exchange unit 1HE and the second load side heat exchange unit 2HE. At this time, the first refrigerant line 541 to the first refrigerant line 541 to transfer the refrigerant between the first heat pump 1HP to the fourth heat pump 4HP and the first load side heat exchange unit 1HE and the second load side heat exchange unit 2HE 4 refrigerant lines 544 are provided. Each of the first refrigerant line 541 to the fourth refrigerant line 544 may overlap or merge in some sections. The first refrigerant line 541 to the fourth refrigerant line 544 may selectively connect the first load side heat exchange unit 1HE and the second load side heat exchange unit 2HE. That is, when the first heat pump 1HP to the fourth heat pump 4HP perform a cooling operation, the refrigerant is supplied to the first load-side heat exchange unit 1HE, and when the heating operation is performed, the refrigerant is supplied to the second load-side heat exchange unit 2HE. In the case of 1:1 operation, the first heat pump (1HP) and the third heat pump (3HP) supply refrigerant to the first load side heat exchange unit (1HE), and the second heat pump (2HP) and the fourth heat The pump 4HP may supply the refrigerant to the second load-side heat exchange unit 2HE.

A fifth refrigerant line 545 is provided between the second refrigerant line 542 and the fourth refrigerant line 544 . At this time, a fifth three-way valve 5V is provided at a portion where the second refrigerant line 542 and the fifth refrigerant line 545 intersect, and the fourth refrigerant line 544 and the fifth refrigerant line 545 intersect A sixth three-way valve (6V) is provided at the part. The fifth three-way valve 5V supplies the refrigerant to the first load-side heat exchange unit 1HE when the second heat pump 2HP operates for cooling, or supplies the refrigerant to the second load-side heat exchange unit 2HE for the heating operation. open to do so In addition, the sixth three-way valve 6V supplies refrigerant to the first load-side heat exchange unit 1HE when the fourth heat pump 4HP performs a cooling operation, or provides a refrigerant to the second load-side heat exchange unit 2HE when a heating operation is performed. opens and closes to supply

According to the high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy according to the present invention, when any one of the first heat pumps to the fourth heat pumps is heated (or hot water supply) operated, the By supplying a part of the heat source water to any one heat pump, at least a part of the stress of the underground heat source can be recovered, the first heat pump and the third heat pump are cooling operations, and the second heat pump and the fourth heat pump are heating ( or hot water supply) operation (1:1 correspondence), the temperature of the heat source water discharged from the second and fourth heat pumps is relatively low and supplied to the underground heat exchanger to recover all the stress of the underground heat source. In addition, since the stress of the underground heat source is recovered, the temperature of the heat source water to be supplied to the heat pump for cooling operation can be lowered, so that the COP of the heat pump receiving the heat source water from the underground heat exchange unit can be improved, and the first heat pump to Since the fourth heat pump can be operated simultaneously or individually in simultaneous cooling or heating mode, there is no need for a separate hot water supply heat pump, and the pressure of the heat source water to be supplied to the heating (or hot water supply) heat pump can be compensated through the second pump. This has the effect of preventing safety accidents from occurring due to insufficient flow rate of the heat pump operating for heating.

The high-efficiency heat pump system capable of detecting the underground pipe and restoring geothermal energy may further include a geothermal pipe detecting means in order to identify location information of the geothermal pipe such as the underground heat exchange unit or each line.

8 is a perspective view showing a geothermal pipe detection means provided on each line connected to an underground heat exchange unit or an underground heat exchange unit of a high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy according to an embodiment of the present invention; 9 is a side view showing the geothermal pipe detecting means from the side, FIGS. 10 and 11 are enlarged perspective views showing the state in which the geothermal pipe detecting means is coupled to the pipe, and FIG. 12 is the third layer of the geothermal pipe detecting means It is a reference diagram illustrating various embodiments of the , and FIG. 13 is an enlarged reference diagram illustrating the coupling portion of the geothermal pipe detection means.

Referring to the drawings, the geothermal pipe detection means 600 according to the sixth embodiment of the present invention includes a first layer 610 , a second layer 620 , a confirmation rod 630 and an identification plate 640 . include

The first layer 610 is disposed parallel to the pipe at a position spaced apart from the pipe buried underground in the direction of the ground. Here, the pipe buried underground may be any one of a riser connected to the underground heat exchange unit or the underground heat exchange unit. The underground pipe is classified into a metal pipe and a non-metal pipe. The metal pipe can accurately determine the location of the buried pipe 10 by analyzing the electromagnetic field wavelength, but since the non-metal pipe does not interfere with the electromagnetic field, it is a pipe using a transmitter and a receiver. Detection is taking place. Here, non-metallic pipes are mainly PVC (Poly Vinyl Chloride Pipe), PE (Poly Ethyleme Pipe), PB (Polybutylene Pipe), CD (Corrugated Duct Pipe), and concrete pipes. It is difficult. Therefore, by providing the second layer 620 of a metal material in the first layer 610 (eg, pipe tape, etc.) buried together on the top of the existing non-metal buried pipe 10, it is easy to use the non-metallic pipe through a conventional metal detector. Line detection may be enabled.

As described above, the first layer 610 is made of a conduit tape or the like. Various colors may be applied to the first layer 610 according to the type of the buried pipe 10 . For example, the pipe tape for tap water may be colored in blue, the pipe tape for sewage may be colored black, blue or yellow, and the pipe tape for rainwater may be colored in green, and is composed of a standard of approximately 10 to 30 cm in width.

The first layer 610 is preferably disposed at a depth of about 10 to 50 cm from the ground surface. For example, the position of the first layer 610 may be installed at a point 30-40 cm above the top of the pipe (top of the pipe guard), and may be installed under the sub-base layer after backfilling, and in the sidewalk section, it is 20-30 cm below the ground. In the point or pavement section, 10~20cm below the pavement layer, the reinforced concrete in the section lacking toffee can be installed directly above the reinforced concrete, and in the case of a river, it can be installed at the point above the gabion.

The second layer 620 may be simultaneously injected or extruded during the molding process of the first layer 610 to be integrally formed. In addition, the second layer 620 may be coupled to the upper or lower surface of the first layer 610 in an attachment structure, or may be provided by a separate coating process.

The second layer 620 may have a dividing pattern having a shape of a line or a dot made of a metal material, or a mixed shape of a line and a dot. The division pattern may be not only a dotted line in which a line is divided, but also a pattern according to a change in the thickness or area of the line. For example, the pattern may include a thin dotted line, a thick dotted line, a large dotted line, a thin solid line, a plurality of parallel lines arranged side by side, a thick solid line, or the like, or a combination thereof. This division pattern can provide data such as the type, use, depth, diameter, material, and embedding schedule of the pipe from the metal detector through a combination of line thickness, dotted line spacing, metal material, and the like. The wavelength of the electromagnetic field may vary according to the shape or type of the split pattern, and the data can be standardized accordingly so that the user can receive data about the buried pipe 10 from the metal detector. For example, if the second layer 620 is disposed along the buried pipe 10 with a thick solid line (width 4 mm) having a length of 10 cm for every 20 cm interval of 20 cm and the metal detector detects it, the metal detection interval and non-detection interval and the detected wavelength By combining the sizes of , it can be detected as a standardized set-up pipe (eg, water pipe, etc.).

And, the confirmation rod 630 and the identification plate 640 may be arranged to correspond to the set position or areas of the buried pipe (10). For example, the set positions or areas of the confirmation rod 130 may be a branch point of the buried pipe 10, a joint area where the pipe and the pipe are connected, and an overlapping area where the pipe and other pipes cross each other or overlap in the vertical direction. Unlike the second layer 620 that provides the attribute data related to the piping, the confirmation rod 630 and the identification plate 640 are overlapping areas that may be confused with other piping during construction or a joint area where there is a risk of leakage of piping. The area may be arranged to provide location data of the piping. Also, the identification plate 640 may include a third layer 642 made of a metal material, and may be distinguished from the electromagnetic field wavelength provided by the second layer 620 by modifying the pattern of the third layer 642 .

The confirmation rod 630 may include a first frame 631 , a second frame 632 , and a clamp 633 .

The first frame 631 may have an identification plate 640 coupled to the outside, and the second frame 632 may slide from the first frame 631 to change the length of the confirmation rod 630 . Here, the first frame 631 may be disposed to vertically overlap the first layer 610 , and more preferably, an upper portion of the first frame 631 may be disposed to penetrate at least the first layer 610 . can In the outside of the first frame 631, the buried depth may be displayed at equal intervals or per unit depth so as to check the depth formed between the buried pipe 10 and the ground surface.

For example, a different color may be painted or attached to the outer circumferential surface of the first frame 631 for each unit depth or length, or a ruler may be displayed to check an accurate depth. That is, 20 cm from the region close to the ground on the outer peripheral surface of the first frame 631 vertically downward, 20 cm below it, green, and 20 cm below it may be made of blue. Then, while it is possible to easily check the set positions or areas of the buried pipe 10 , it is easy to check the depth from the ground to the buried pipe 10 , so that workability can be improved. Therefore, even if only one of the first layer 610 or the confirmation rod 630 is found during the construction work, it is possible to easily check the depth or position of the buried pipe 10 .

The second frame 632 may be disposed inside or outside the first frame 631 , and the first frame 631 and the second frame 632 are coupled such that at least a portion thereof overlaps and is not separated from each other. Therefore, it is preferable that the second frame 632 is arranged to be slidably movable inside the first frame 631 .

The clamp 633 may be disposed at the lower end of the first frame 631 in the case of a structure in which only the first frame 631 is provided, and in the case of a structure in which the first frame 631 and the second frame 632 are combined. It may be disposed at the lower end of the second frame 632 . The clamp 633 is coupled to the outer circumferential surface of the buried pipe 10 and provides a function of fixing the confirmation rod 630 to maintain its original position. The clamp 633 may be applied in a structure capable of one-touch coupling by a hook type or a clip method.

The identification plate 640 includes a plate 641 and a third layer 642 .

The plate 641 may be formed in a plate shape with a coupling hole 643 formed in the center so that the confirmation rod 630 can be fitted, and arranged in parallel with the ground surface. In addition, the third layer 642 may be disposed on the upper surface or the lower surface of the plate 641 , and may be made of a metal material to be detected by a metal detector. Of course, at least a part of the plate 641 may also be made of a metal material. One cross section of the plate 641 may be formed of any one of a circle, an ellipse, and a polygon of a triangle or more.

The third layer 642 may be disposed to correspond to the shape of the plate 641 , and may be formed on the plate 641 in various patterns to detect different intensities of electromagnetic field wavelengths when detected by a metal detector. For example, the third layer 642 may be formed of a plurality of concentric patterns having the same center and different diameters or side lengths. Fig. 12(a) shows a pattern of concentric circles, Fig. 12(b) shows a concentric ellipse, and Fig. 12(c) shows a pattern such as concentric polygons. In addition, the third layer may be applied as a stripe pattern as shown in FIG. 12(d), a grid pattern as shown in FIG. 12(e), and a dot pattern as shown in FIG. 12(f).

The patterns of the third layer 642 are formed differently in cross-sectional area or density according to at least one data of the type, use, depth, diameter, material, and embedding schedule of the pipe, so that the difference in the electromagnetic field wavelength detected by the metal detector can be used to set or provide data of buried piping.

The confirmation rod 630 and the identification plate 640 are easily coupled to each other, and may include a coupling structure capable of adjusting the coupling depth.

That is, the confirmation rod 630 is formed with a groove 635 for each unit length set on the outer circumferential surface, and the identification plate 640 may be provided with a protruding protrusion 645 to be inserted into the groove from the inside of the coupling hole. At this time, the groove 635 is a vertical groove 636 formed along the longitudinal direction of the confirmation rod 630, and a horizontal groove 637 formed along the circumference of the confirmation rod 630 in a direction perpendicular to the vertical groove 636. includes The horizontal grooves 637 may be arranged for each set unit length of the confirmation rod 630 , and may be separately arranged at additional positions at equal intervals.

Although the structure in which one vertical groove 636 is provided is described as an example in FIG. 13 , at least two or more vertical grooves 636 may be provided on opposite sides of the confirmation rod 630 . Therefore, when the confirmation rod 630 is fitted into the coupling hole 643 of the identification plate 640, the protrusion 645 can first move in the vertical direction along the vertical groove 636, and horizontally arranged according to the set depth. As the identification plate 640 moves or rotates in the horizontal direction along the groove 637 , a coupling position between the identification rod 630 and the identification plate 640 may be set. Of course, it is possible to combine according to the set depth without the structure of the groove 635 or the protrusion 645 in an interference fit method, and O-rings on the upper and lower portions corresponding to the positions where the identification plate 640 is to be fixed on the confirmation rod 630 . Position setting may be performed by providing a position fixing means (not shown), such as

In addition, the confirmation rod 630 is preferably arranged so that the distance from the ground can be confirmed even if the buried pipe 10 is located at different depths, and the identification plate 640 is the first layer ( 610) may be disposed at different heights in the upper or lower portions. At this time, by arranging the depth of the identification plate 640 differently on the confirmation rod 630, the detection sensitivity from the metal detector can be adjusted, and thus data of the buried pipe can be provided according to the difference in the size of the electromagnetic field.

Also, although not shown in the drawing, the position of each confirmation rod 630 and the identification plate 640 may be a portion in which a plurality of buried pipes (eg, underground heat exchange unit, 11a) are coupled to one main pipe 11b. In this case, a valve (not shown) for opening and closing between each of the plurality of buried pipes 11a and the main pipe 11b may be disposed at the positions of the confirmation rod 630 and the identification plate 640 . That is, when any one of the plurality of buried pipes 21 has a leak or a problem occurs, the position of the confirmation rod 630 and the identification plate 640 is detected, and each of the buried pipes 11a is removed. By inspecting and shutting off the buried piping valve in question, the main piping can be prevented from becoming less efficient.

According to the geothermal pipe detection means according to the present invention, it is possible to easily detect the position or direction of the non-metallic pipe through the metal detector, and by including the split pattern or the identification pattern in the second layer, the information of the buried pipe can be confirmed, By easily acquiring information on the buried pipe through the second or third layer, safety accidents can be prevented in the construction process, and the branching area or joint area of the buried pipe can be easily identified, so even when leaks are detected, maintenance is performed. It is easy to install, and even if the depth or location of the buried pipe is different, the height of the identification plate can be adjusted, and the height of the identification plate can be adjusted on the confirmation rod to be combined.

In the above, specific embodiments have been shown and described to illustrate the technical idea of the present invention, but the present invention is not limited to the same configuration and operation as the specific embodiments as described above, and various modifications do not depart from the scope of the present invention. can be carried out within Accordingly, such modifications should be considered to fall within the scope of the present invention, and the scope of the present invention should be determined by the following claims.

100~500: High-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy
600: geothermal pipe detection means

Claims (31)

a first line provided with a first pump to supply heat source water from the underground heat exchange unit to the first heat pump;
a second line for discharging the heat source water heat-exchanged in the first heat pump to the underground heat exchange unit;
a third line connecting a first three-way valve provided on the second line and a second heat pump to supply heat source water heat-exchanged in the first heat pump to the second heat pump;
a fourth line for supplying heat source water from the first line to the second heat pump through a second three-way valve provided on the third line;
a fifth line for discharging the heat source water heat-exchanged in the second heat pump to the underground heat exchange unit;
a sixth line connecting a first refrigerant line connecting the first heat pump and a first load-side heat exchange unit to a second refrigerant line connecting the second heat pump and a second load-side heat exchange unit; and
High-efficiency heat capable of detecting underground piping and restoring geothermal energy, comprising a; geothermal pipe detection means including a first layer spaced apart from each other in the direction of the ground surface from any one of the underground heat exchange unit or the first line pump system. [Claim 3] The underground pipe detection and geothermal energy restoration possible according to claim 1, further comprising a third three-way valve disposed on the sixth line and selectively connecting the first refrigerant line and the second refrigerant line. High efficiency heat pump system. The method according to claim 1 or 2, wherein, when the first heat pump is in a cooling operation, high-temperature heat source water heat-exchanged in the first heat pump is supplied to the second heat pump through the third line, and 2 A high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy, characterized in that the second load-side heat exchange unit supplies hot water through a heat pump. The high-efficiency heat pump system according to claim 3, wherein the heat source water discharged from the second heat pump has a lower temperature than the heat source water provided from the first heat pump. The high-efficiency heat pump system according to claim 4, wherein the underground heat exchange unit recovers underground heat source energy through the heat source water discharged from the second heat pump. The high-efficiency heat pump capable of detecting underground piping and restoring geothermal energy according to claim 2, wherein the third line is opened when the first heat pump operates for cooling and the second heat pump operates for heating or hot water supply. system. The high-efficiency heat pump system according to claim 1, further comprising a second pump provided on the third line between the first three-way valve and the second three-way valve. . a first line provided with a first pump to supply heat source water from the underground heat exchange unit to the first to fourth heat pumps, respectively;
a second line for collecting heat source water heat-exchanged in the first to fourth heat pumps and discharging it to the underground heat exchange unit; and
A third line branched from the second line and connected to the first line and supplying some heat source water discharged from at least one of the first to third heat pumps to the fourth heat pump. including;
The first line includes lines 1-1 to 1-4 connecting the first to fourth heat pumps from the underground heat exchange unit, respectively,
The second line includes lines 2-1 to 2-4 connecting the underground heat exchange unit from each of the first heat pumps to the fourth heat pumps,
The third line is branched from the 2-3rd line and connected to the 1-4th line, and a first three-way valve is provided at the intersection of the third line and the 1-4th line. A high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy. delete delete The method according to claim 8, wherein the first to fourth lines include a second pump disposed between the first three-way valve and the fourth heat pump to compensate the pressure of the heat source water to be supplied to the fourth heat pump. A high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy. The method of claim 8, wherein the third line comprises a first three-way valve provided at one end branched from the second line-3 and a second three-way valve provided at the other end crossing the line number one-fourth. A high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy, characterized in that it is connected. 13. The method of claim 12, wherein the third line comprises a second pump disposed between the first three-way valve and the second three-way valve to compensate the pressure of the heat source water to be supplied to the fourth heat pump. A high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy. The method of claim 8, wherein the third line,
3-1 connecting the first three-way valve provided at one end branched from the 2-3 line and the second three-way valve provided at the other end where the first three-way valve and lines 1-4 intersect line and
3-2 connecting a third three-way valve provided at one end branched from the 2-1 line and a fourth three-way valve provided at the other end where the third three-way valve and the 2-1 line intersect A high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy, characterized in that it includes a line. 15. The method of claim 14, wherein the 3-1 line and the 3-2 line is characterized in that it comprises a second pump for compensating the pressure of the heat source water to be supplied to the second heat pump and the fourth heat pump, respectively. A high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy. 16. The method of claim 14 or 15,
Further comprising a first load-side heat exchange unit and a second load-side heat exchange unit connected to the first to fourth heat pumps,
The underground pipe, characterized in that it further comprises a first refrigerant line to a fourth refrigerant line for selectively transferring the refrigerant between the first heat pump to the fourth heat pump and the first load side heat exchange unit or the second load side heat exchange unit A high-efficiency heat pump system capable of detecting and restoring geothermal energy. The high-efficiency heat pump system according to claim 16, further comprising a fifth refrigerant line connecting the second refrigerant line and the fourth refrigerant line. 18. The method of claim 17, wherein the second refrigerant line comprises a fifth three-way valve provided at a portion crossing the fifth refrigerant line,
The fourth refrigerant line is a high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy, characterized in that it includes a sixth three-way valve for selectively supplying refrigerant to the first load-side heat exchange unit or the second load-side heat exchange unit. 19. The method of claim 18, wherein, when the first heat pump and the third heat pump are performing a cooling operation through the first load-side heat exchange unit, the high-temperature heat source water is supplied to the first heat source through the 3-1 line and the 3-2 line, respectively. It is supplied to the 2 heat pump and the 4th heat pump,
A high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy, characterized in that the second load-side heat exchanger supplies hot water through the second heat pump and the fourth heat pump. According to claim 1 or 8, wherein the geothermal pipe detection means,
the first layer is disposed from at least a portion of the underground heat exchange unit, the first line, the second line and the fifth line toward the ground surface;
Underground pipe detection and geothermal energy restoration, characterized in that it comprises at least one or more confirmation rods disposed in each set area of the pipe and extending from the pipe in the direction of the ground surface and an identification plate disposed in an area adjacent to the ground surface on the confirmation rod High-efficiency heat pump system that can do this. The method of claim 20, wherein the confirmation rod,
A high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy, characterized in that it is buried at a set depth from the pipe to the ground surface, and the burial depth is displayed for each unit depth formed at equal intervals. The method of claim 21, wherein the confirmation rod,
a first frame to which the identification plate is coupled;
a second frame that enters and exits so that the length can be changed from the first frame;
and a clamp disposed at the lower end of the second frame and coupled to the pipe,
A high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy, characterized in that the first frame is disposed to pass through at least the first layer. 23. The method of claim 22, wherein the identification plate,
A plate-shaped plate arranged parallel to the ground surface,
A high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy, characterized in that it includes a third layer made of a metal material corresponding to the shape of the plate. 24. The method of claim 23, wherein the plate comprises:
A high-efficiency heat pump system capable of detecting underground pipes and restoring geothermal energy, characterized in that one cross-section is made of any one of a polygon of a circle, an ellipse, a triangle or more. 24. The method of claim 23, wherein the third layer comprises:
A high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy, characterized in that it consists of a plurality of concentric patterns having the same center and different diameters or lengths of one side. The method of claim 25, wherein the plurality of concentric patterns,
A high-efficiency heat pump system capable of detecting underground pipes and restoring geothermal energy, characterized in that the cross-sectional area or density is formed differently according to at least one data of the type, use, depth, diameter, material, and embedding schedule of the pipe. The high-efficiency heat pump system according to claim 23, wherein the identification plate is disposed at different heights on the confirmation rod to correspond to the type of the pipe. The method of claim 23, wherein the confirmation rod is formed with a groove for each set unit length,
The identification plate is a high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy, characterized in that the protrusion corresponding to the groove is provided. The method of claim 28, wherein the groove comprises:
a vertical groove formed along the longitudinal direction of the confirmation rod;
A high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy, characterized in that it includes a horizontal groove formed along the circumference of the confirmation rod in a direction perpendicular to the vertical groove for each set unit length. According to claim 1 or 8, wherein the geothermal pipe detection means,
A high-efficiency heat pump system capable of detecting underground piping and restoring geothermal energy, characterized in that it includes a second layer of a metal material provided on the first layer. 31. The high-efficiency heat pump system according to claim 30, wherein the second layer has a split pattern spaced apart from the first layer or at a set interval along the longitudinal direction of the pipe.

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