KR102595806B1 - Upper protection heat exchange unit for geothermal heat and flowing structure of geothermal heat exchanging water comprising the upper protection equipment unit for geothermal heat - Google Patents

Abstract

According to the disclosed geothermal top protection heat exchange unit and the geothermal exchange water flow structure including the geothermal top protection heat exchange unit, the geothermal top protection heat exchange unit includes an upper protection hole casing member, a pumping piping member, and an upper protection hole. It includes a detachable cover member, wherein the pumping piping member is connected to the upper protection hole detachable cover member, and the deep well pump is connected to the pumping piping member, thereby separating the upper protection hole detachable cover member from the upper protection hole casing member. When this happens, the pumping piping member connected to the upper protection hole detachable cover member and the deep well pump connected to the pumping piping member can be separated from the upper protection hole casing member together with the upper protection hole detachable cover member, Accordingly, there is an advantage in that access to the deep well pump placed inside the underground well can be easily accessed for replacement or repair.

Description

Upper protection heat exchange unit for geothermal heat and flowing structure of geothermal heat exchanging water comprising the upper protection equipment unit for geothermal heat}

The present invention relates to a top protection heat exchange unit for geothermal heat and a geothermal exchange water flow structure including the top protection heat exchange unit for geothermal heat.

In a geothermal exchange system that supplies heating, cooling, and hot water to consumers using geothermal heat, an upper protection hole for geothermal heat is protruding and installed at the top of an underground well formed in the ground.

An example of such an upper protection hole for geothermal heat is that of the patent document presented below.

However, according to the conventional upper protection well for geothermal heat, when attempting to access the deep well pump for replacement or repair of the deep well pump installed inside the underground well, the entire upper protection well for geothermal heat must be disassembled. Because the deep well pump was accessible, there was a problem that accessibility to the deep well pump was very poor.

In addition, in the conventional geothermal exchange system, when geothermal exchange water flows with a plurality of underground wells drilled, there is no solution for handling overflow in any one of the plurality of underground wells. It was.

In addition, in the conventional geothermal exchange system, when installing a plurality of underground wells, each underground well had to be connected to a supply header or a return header, and accordingly, each underground well and the supply header or the return header Not only was the piping for connection complicated, but there was also the problem that such piping required a lot of construction costs.

Registered Patent No. 10-1238454, registration date: 2013.02.22., title of invention: sealed upper protection hole water return hat device for open underground heat exchanger

The present invention provides a geothermal top protection heat exchange unit for geothermal heat that facilitates access to the deep well pump for replacement, repair, etc. of the deep well pump disposed inside an underground well, and a geothermal top protection heat exchange unit including the geothermal top protection heat exchange unit. The purpose is to provide an exchange water flow structure.

Another object of the present invention is a top protection heat exchange unit for geothermal heat that allows geothermal exchange water bleed from at least one of the plurality of underground wells to flow to another of the plurality of underground wells, and a top protection heat exchange unit for geothermal heat. It provides a geothermal exchange water flow structure.

Another object of the present invention is to create elevation differences in the natural water level of groundwater in each of the underground wells by controlling the amount of geothermal exchange water returned to each of the plurality of underground wells, so that in some of the underground wells, An upper protection heat exchange unit for geothermal heat that allows bleeding to occur and recharge to occur in other parts of each of the underground wells, thereby activating the flow of the underground aquifer and improving the heat exchange efficiency of each of the underground wells without discharging groundwater. To provide a geothermal exchange water flow structure including the upper protection heat exchange unit for geothermal heat.

Another object of the present invention is to provide a geothermal heat exchange water flow structure including a geothermal upper protection heat exchange unit and a geothermal upper protection heat exchange unit capable of connecting a plurality of underground wells with a supply header or return water header in a simple structure. It is provided.

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The geothermal exchange water flow structure according to one aspect of the present invention includes a first underground well module in which a first geothermal upper protection heat exchange unit is connected to a first underground well formed in the ground; A second geothermal upper protection heat exchange unit is formed on a plurality of second underground wells formed in the ground to be spaced a predetermined distance apart from the first underground well module, and is formed to be spaced a predetermined distance from the first underground well module. a plurality of second underground well modules; a demand source supply pipe that allows geothermal exchange water to flow from the first underground well module and the second underground well module to the demand source; a demand source return pipe that allows the geothermal exchange water to flow from the demand source toward the first underground well module and the second underground well module; A balancing work that connects a plurality of second underground well modules and the customer return pipe, so that the geothermal exchange water flowing through the customer return pipe passes through and distributes the geothermal exchange water to each of the second underground well modules. side tube member; a bleeding recharge pipe member connecting the first underground well module and the second underground well module so that the geothermal exchange water bleed from the first underground well module flows into the interior of the second underground well module; By connecting the balancing tube member with a plurality of portions relatively close to the second underground well module among the bleeding recharge pipe members, the bleeding flow through the bleeding recharge pipe member bleeds from the first underground well module. a bleeding balancing side connection pipe that allows at least a portion of geothermal exchange water to flow into the balancing side tube member; A pipe on one side of the module connection is formed between each of the second underground well modules to enable flow of the geothermal exchange water between each of the second underground well modules; And a bleeding balancing other side connection pipe connecting a portion of the bleeding recharge pipe member relatively close to the first underground well module and the first water return side inlet pipe constituting the first underground well module;
When bleeding occurs in at least one of the second underground well modules, the geothermal exchange water bleeding from at least one of the second underground well modules is supplied to the module connection pipe, the bleeding recharge pipe member, and the bleeding balancing. The geothermal exchange water may flow into the first underground well module through the other connection pipe and the first water return side inlet pipe, and when bleeding occurs in the first underground well module, the geothermal exchange water bleeds from the first underground well module. is characterized in that it can be introduced into each of the second underground well modules through the bleeding recharge pipe member, the bleeding balancing one-side connection pipe, and the balancing one-side tube member.

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According to an upper protection heat exchange unit for geothermal heat and a geothermal exchange water flow structure including the upper protection heat exchange unit for geothermal heat according to an aspect of the present invention, the upper protection heat exchange unit for geothermal heat includes an upper protection hole casing member and a pumping piping member. and an upper protection hole detachable cover member, wherein the pumping piping member is connected to the upper protection hole detachable cover member, and the deep well pump is connected to the pumping piping member, so that the upper protection hole detachable cover member protects the upper part. When separated from the ball casing member, the pumping piping member connected to the upper protection hole removable cover member and the deep well pump connected to the pumping piping member are separated from the upper protection hole casing member together with the upper protection hole removable cover member. This has the effect of enabling easy access to the deep well pump for replacement or repair of the deep well pump disposed inside the underground well.

According to a top protection heat exchange unit for geothermal heat and a geothermal exchange water flow structure including the top protection heat exchange unit for geothermal heat according to another aspect of the present invention, the geothermal exchange water flow structure includes a first underground well module and a second underground well module. By including a module and a bleeding recharge pipe member, geothermal exchange water bleeding from at least one of the plurality of underground wells can flow to another of the plurality of underground wells, thereby causing bleeding from at least one of the plurality of underground wells. There is an effect that the geothermal exchange water can be cultivated into another of the plurality of underground wells.

According to another aspect of the present invention, a top protection heat exchange unit for geothermal heat and a geothermal exchange water flow structure including the top protection heat exchange unit for geothermal heat. In the geothermal exchange water flow structure, the first underground well module and the second The demand source supply pipes extending from the first discharge piping member and the second discharge piping member respectively constituting the underground well module are combined to form a single pipe and extend toward the supply header, connected to the supply header, and the demand source. The water return pipe extends from the water return header in the form of a single pipe toward the first underground well module and the second underground well module, and then branches in the vicinity of the first underground well module and the second underground well module to reach the first underground well module. By flowing the geothermal exchange water to the well module and the second underground well module to be recovered respectively, it is possible to connect the plurality of underground wells with the supply header or the return header in a simple structure, and the construction cost for such connection is This has the effect of resulting in significant savings.

1 is a vertical cross-sectional view showing the application of the upper protection heat exchange unit for geothermal heat according to the first embodiment of the present invention.
Figure 2 is an enlarged view of portion A shown in Figure 1.
Figure 3 is an enlarged view of part B shown in Figure 1.
Figure 4 is a diagram showing the geothermal exchange water flow structure according to the first embodiment of the present invention.
Figure 5 is a cross-sectional view showing the structure of a float valve constituting the geothermal exchange water flow structure according to the first embodiment of the present invention.
Figure 6 is a diagram showing the geothermal exchange water flow structure according to the second embodiment of the present invention.
Figure 7 is an enlarged view of portion C shown in Figure 5.
Figure 8 is a view from above of a part of the geothermal exchange water flow structure according to the second embodiment of the present invention.
Figure 9 is a view looking down from above on a part of the geothermal exchange water flow structure according to the third embodiment of the present invention.
Figure 10 is a view looking down from above on a part of the geothermal exchange water flow structure according to the fourth embodiment of the present invention.
Figure 11 is an enlarged view of a portion of the geothermal exchange water flow structure according to the fifth embodiment of the present invention.
Figure 12 is an enlarged view of a portion of the geothermal exchange water flow structure according to the sixth embodiment of the present invention.

Hereinafter, a geothermal upper protection heat exchange unit and a geothermal heat exchange water flow structure including the geothermal upper protection heat exchange unit according to embodiments of the present invention will be described with reference to the drawings.

Figure 1 is a vertical cross-sectional view showing the application of the upper protection heat exchange unit for geothermal heat according to the first embodiment of the present invention, Figure 2 is an enlarged view of portion A shown in Figure 1, and Figure 3 is shown in Figure 1 It is an enlarged view of part B, and Figure 4 is a diagram showing the geothermal exchange water flow structure according to the first embodiment of the present invention, and Figure 5 is a diagram showing the geothermal exchange water flow structure according to the first embodiment of the present invention. This is a cross-sectional view showing the structure of the float valve.

Referring to Figures 1 to 5 together, the upper protection heat exchange unit 100 for geothermal heat according to this embodiment includes an upper protection hole casing member 110, a pumping piping member 130, and an upper protection hole removable cover member ( 120).

In addition, the geothermal upper protection heat exchange unit 100 further includes a discharge piping member 140, a discharge backflow check valve 141, an upper protection hole inner pipe 146, and a contraction/expansion buffer member 115. do.

The upper protective hole casing member 110 is installed on an underground well 10 formed in the ground, and its upper part is exposed to the ground, and its interior may be formed in the form of an empty circular cylinder.

The interior of the underground well 10 includes an inner pipe 20 disposed in a shape that penetrates the underground well 10 to be spaced a predetermined distance from the inner wall of the underground well 10.

The well inner pipe 20 is made of polyvinyl chloride (PVC), etc., and its interior is formed in the shape of an empty circular cylinder, and a plurality of perforations are formed in the lower part thereof, and the underground well 10 is formed through the perforations. The geothermal exchange water at the bottom can flow into the inner pipe 20 of the well.

Inside the well inner pipe 20, a deep well pump 40 is disposed connected to a pumping pipe body 131, which will be described later, so that the geothermal exchange water inside the underground well 10 flows in and rises.

The upper protective hole removable cover member 120 is detachably connected to the upper part of the upper protective hole casing member 110 and can cover the upper protective hole casing member 110, and the removable cover body 121 and a pumping piping fixture 122.

The detachable cover body 121 can be detachably connected to the upper part of the upper protective hole casing member 110 so as to cover the upper part of the upper protective hole casing member 110.

The pumping piping fixture 122 is formed at the lower part of the removable cover body 121 and connects the pumping piping member 130 to the removable cover body 121.

The pumping pipe fixture 122 is formed in the form of a plate that divides the entire inner lower part of the removable cover body 121.

The pumping piping member 130 is connected to the deep well pump 40 arranged to be inserted into the underground well 10, so that the geothermal exchange water pumped by the deep well pump 40 is used in the underground well 10. ), and includes the pumping pipe body 131, the pumping pipe bending body 132, and the pumping pipe penetrating body 133.

The pumping pipe body 131 has a shape that extends a predetermined length from the deep well pump 40 to the detachable cover body 121, and extends to the center or lower part of the well inner pipe 20 and has the above-described lower portion. The deep well pump 40 is connected, and its upper part extends to the pumping piping fixture 122.

The pumping pipe bending body 132 extends from the pumping pipe body 131 to penetrate the pumping pipe fixture 122 and protrude above the pumping pipe fixture 122, and the pumping pipe fixture ( The part that penetrates part of 122) is bent into an inverted U shape, and its distal end again penetrates another part of the pumping pipe fixture 122.

The pumping pipe penetrating body 133 extends from the pumping pipe penetrating bending body, protrudes into the lower space of the pumping pipe fixture 122 for a certain length, and is formed to be parallel to the pumping pipe main body 131. .

When configured as above, the pumping piping member 130 is connected to the upper protection hole removable cover member 120, and the deep well pump 40 is connected to the pumping piping member 130, so that the upper protection hole When the removable cover member 120 is separated from the upper protective hole casing member 110, the pumping piping member 130 connected to the upper protective hole removable cover member 120 and the pumping piping member 130 connected to the pumping piping member 130 The deep well pump 40 can be separated from the upper protection hole casing member 110 integrally with the upper protection hole detachable cover member 120, and thus the above disposed inside the underground well 10. Access to the deep well pump 40 for replacement, repair, etc. of the deep well pump 40 can be easily achieved.

The discharge piping member 140 extends along the inside of the upper protective hole casing member 110 to the top of the upper protective hole casing member 110 so that it can be detachably connected to the pumping piping penetrating body 133. , the lower part of which protrudes toward the outer space of the upper protection hole casing member 110, so that the geothermal exchange water pumped by the deep well pump 40 and flowing through the pumping piping member 130 is supplied to the upper protection hole. It is discharged to the outside of the casing member 110 and supplied to the consumer.

The discharge backflow check valve 141 is installed on the discharge piping member 140 to prevent the geothermal exchange water flowing through the discharge piping member 140 from flowing back toward the pumping piping member 130. will be.

By the discharge backflow check valve 141, the geothermal exchange water flows only to the outside from the pumping piping member 130 and does not flow back from the outside toward the pumping piping member 130, and thus the deep well The deep well pump 40 is stopped for replacement or repair of the pump 40, and the upper protection hole removable cover member 120 and the pumping piping member 130 are removed from the upper protection hole casing member 110. Even if separated, the geothermal exchange water does not arbitrarily flow back from the outside toward the pumping piping member 130.

The upper protection hole inner pipe 146 is arranged to penetrate the upper protection hole casing member 110 at a predetermined distance from the inner wall of the upper protection hole casing member 110, and the pumping pipe runs along the inside thereof. The main body 131 is penetrated, and its lower end is arranged to be spaced apart from the inner pipe 20 at a predetermined interval.

The discharge piping member 140 is disposed between the outer surface of the upper protection hole inner pipe 146 and the inner surface of the upper protection hole casing member 110.

The contraction/expansion buffering member 115 connects the well inner pipe 20 and the upper protection hole inner pipe 146, which are spaced apart from each other, and the inner pipe 20 of the well according to a temperature change of the geothermal exchange water. The length can be varied according to changes in the distance between the inner pipe 20 of the well and the inner pipe 146 of the upper protection hole so that expansion and contraction can be buffered.

The contraction/expansion buffering member 115 may be formed in the form of a corrugated pipe, and in addition, a pipe having elasticity such as silicone rubber may also be presented.

When the temperature of the geothermal exchange water is relatively increased, the inner pipe 20 of the well is relatively expanded and the length of the inner pipe 20 of the well is relatively increased. At this time, the expansion and contraction buffer member 115 The length is reduced as much as the well inner pipe 20 is increased, and when the temperature of the geothermal exchange water is relatively lowered, the well inner pipe 20 is relatively contracted and the length of the well inner pipe 20 is relatively reduced. At this time, the length of the contraction/expansion buffering member 115 is increased by the same amount as the inner pipe 20 of the well is reduced, so that the contraction/expansion of the inner pipe 20 of the well according to the temperature change of the geothermal exchange water is reduced. can be fully charged.

In detail, the contraction/expansion buffering member 115 is formed in the form of a corrugated pipe, so that the inner well pipe 20 and the upper protection hole expand and contract as the temperature of the geothermal exchange water changes. When the gap between the inner pipes 146 changes, each wrinkle of the contraction/expansion buffering member 115 narrows or becomes spaced apart from each other, thereby changing the length of the contraction/expansion buffering member 115, and thus the geothermal heat exchange water. Contraction and expansion of the inner pipe 20 due to temperature changes can be buffered.

An insertion pipe 30 extends from the lower end of the upper protection hole inner pipe 146, and the outer diameter of the insertion pipe 30 is formed to be relatively small compared to the inner diameter of the well inner pipe 20. (30) is inserted into the well inner pipe 20, but the inserted pipe 30 remains disconnected from the well inner pipe 20, that is, not connected. In addition, the upper end of the contraction/expansion buffering member 115 is connected in a way that surrounds the lower outer edge of the upper protection hole inner pipe 146, and the lower end of the contraction/expansion buffering member 115 is connected to the inner pipe 20 of the well. It is formed in a shape that surrounds the upper outer edge of the. Then, when the length of the contraction/expansion buffer member 115 changes as the well inner pipe 20 contracts and expands according to a change in the temperature of the geothermal exchange water, the insertion pipe 30 is the well inner pipe ( 20) is lifted and lowered while maintaining the inserted state inside the upper protection hole, and accordingly, even if the distance between the upper protection hole inner pipe 146 and the well inner pipe 20 changes, the upper protection hole inner pipe 146 and The central axes of the inner pipes 20 can be maintained aligned with each other, allowing the geothermal exchange water to flow smoothly.

Meanwhile, at the lower part of the upper protection hole casing member 110, a water return side inlet pipe 142 is formed at a position relatively lower than the discharge pipe member 140 by a predetermined height.

The water return side inlet pipe 142 is a pipe that allows the geothermal exchange water returned from the demand source to flow into the upper protection hole casing member 110.

The geothermal exchange water introduced through the water return side inlet pipe 142 falls through the space between the outer surface of the contraction/expansion buffer member 115 and the inner surface of the upper protective hole casing member 110, and falls through the underground well. It flows through the space between the inner surface of (10) and the outer surface of the well inner pipe 20, exchanges heat with the ground, and then flows into the inner well pipe 20 through the perforation in the lower part of the well inner pipe 20. After flowing inside, it is raised by the deep well pump 40 and supplied to the demand destination through the pumping piping member 130 and the discharge piping member 140.

In this embodiment, in the lower part of the upper protected hole casing member 110, the geothermal exchange water introduced into the interior of the upper protected hole casing member 110 through the water return side inlet pipe 142 is disposed in the discharge piping member. In order to prevent the phenomenon of arbitrarily rising toward (140), a blocking wall member 105 is further formed to block between the discharge pipe member 140 and the water return side inlet pipe 142.

The blocking wall member 105 is formed in the form of a plate that entirely blocks the space between the discharge pipe member 140 and the water return side inlet pipe 142.

A blocking wall hole 106 is further formed in the blocking wall member 105, a separate pressure regulating pipe (not shown) is connected to the blocking wall hole 106, and an opening/closing valve ( As (not shown) is provided, whether or not the geothermal exchange water on the lower side of the blocking wall member 105 flows through the pressure control pipe through the pressure control pipe and the flow amount can be adjusted according to the opening and closing of the opening and closing valve. As a result, the pressure of the lower space of the blocking wall member 105 can be easily adjusted from the outside.

Drawing number 145 extends to one side from the lower part of the upper protection hole inner pipe 146, penetrates the upper protection hole casing member 110, and protrudes to the outside of the upper protection hole casing member 110. This is an extension pipe to the inner pipe.

The inner pipe extension pipe 145 can be connected to the bleeding containment pipe member 153, which will be described later.

The inner pipe extension pipe 145 is formed at a relatively higher position in the upper protection hole casing member 110 than the water return side inlet pipe 142.

Hereinafter, the operation of the top protection heat exchange unit 100 for geothermal heat according to this embodiment will be described with reference to the drawings.

The geothermal exchange water returned from the demand source and introduced through the water return side inlet pipe 142 falls through the space between the outer surface of the contraction/expansion buffer member 115 and the inner surface of the upper protective hole casing member 110. flows through the space between the inner surface of the underground well (10) and the outer surface of the inner well pipe (20), exchanges heat with the ground, and then flows inside the well through the perforation in the lower part of the inner well pipe (20). flows into the interior of the pipe 20.

The geothermal exchange water flowing into the inside of the well inner piping 20 as described above is raised by the deep well pump 40 and flows through the pumping piping member 130 and the discharge piping member 140. It is supplied to the above demander.

Meanwhile, the geothermal exchange water flow structure 150 according to this embodiment includes the first underground well module 190, the second underground well module 195, the demand return pipe 152, and the first water return amount automatically proportional. It includes a control valve 156, a second water return amount automatic proportional control valve 157, a control unit 158, and the bleeding reservoir pipe member 153.

The first underground well module 190 has a first geothermal upper protection heat exchange unit 100 connected to the first underground well 10 formed in the ground.

The second underground well module 195 is formed in the form of a second geothermal upper protection heat exchange unit 100' connected to a second underground well formed to be spaced a predetermined distance from the first underground well 10 in the ground. It is formed to be spaced apart from the first underground well module 190 at a predetermined distance.

Both the first underground well 10 and the second underground well 10 are identical to the underground well 10, and the underground wells 10 are formed at positions spaced apart from each other.

Both the first geothermal top protection heat exchange unit 100 and the second geothermal top protection heat exchange unit 100' are the same as the geothermal top protection heat exchange unit 100, and the first underground well 10 and are respectively placed on the second underground well.

Of course, in each of the first underground well module 190 and the second underground well module 195, a first well inner pipe 20 and a second well inner pipe corresponding to the well inner pipe 20, respectively ( 20), as well as the first deep well pump 40 and the second deep well pump corresponding to the deep well pump 40, respectively.

Hereinafter, 'first' and 'second' are further added to the front end of each component of the first geothermal upper protection heat exchange unit 100 and the second geothermal upper protection heat exchange unit 100', and the corresponding configuration is the same as the configuration with the 'first' and 'second' removed while configuring the geothermal upper protection heat exchange unit 100.

For example, the first upper protective hole casing member 110 and the second upper protective hole casing member 110' both have the same configuration as the upper protective hole casing member 110, and for convenience of explanation, the first upper protective hole casing member 110' 1 The upper protective hole casing member 110 and the upper protective hole casing member 110 are indicated by the same drawing number, and the second upper protective hole casing member 110' is the first upper protective hole casing member 110. ) is displayed with an additional ' added to distinguish it from ). This notation applies equally to other configurations.

The customer return pipe 152 allows the geothermal heat exchange water to flow from the customer side return header (not shown) toward the first underground well module 190 and the second underground well module 195.

The first water return amount automatic proportional control valve 156 is disposed in the demand source water return pipe 152 that flows to the first underground well module 190, and flows from the return header to the first underground well module 190. It is possible to control the return amount of the geothermal exchange water flowing through.

The second water return amount automatic proportional control valve 157 is disposed in the demand source water return pipe 152 that flows to the second underground well module 195, and flows from the return header to the second underground well module 195. It is possible to control the return amount of the geothermal exchange water flowing through.

The control unit 158 can control the first water return amount automatic proportional control valve 156 and the second water return amount automatic proportional control valve 157.

The bleeding recharge pipe member 153 is configured to use the geothermal exchange water bleed from any one of the first underground well module 190 and the second underground well module 195 by adjusting the water return amount of the control unit 158. The first underground well module 190 and the second underground well module 195 are connected so that the water flows into the other of the first underground well module 190 and the second underground well module 195. .

The geothermal exchange water flowing from the water return header on the demand side through the demand water return pipe 152 is branched to the first water return amount automatic proportional control valve 156 and the second water return amount automatic proportional control valve 157. ) and then the water can be returned to the first underground well module 190 and the second underground well module 195.

By being configured as above, each return amount of the geothermal exchange water returned to the first underground well module 190 and the second underground well module 195 installed in each of the plurality of underground wells is determined by the control unit 158 It can be controlled by intentionally increasing the return amount of the geothermal exchange water to one of the first underground well module 190 and the second underground well module 195 installed in each of the underground wells, A height difference in the natural water level of groundwater can be formed in the first underground well module 190 and the second underground well module 195 installed in each of the underground wells, so that the first underground well module 190 installed in each of the underground wells Bleeding occurs in one of the underground well module 190 and the second underground well module 195, and the first underground well module 190 and the second underground well module 195 installed in each of the underground wells. In the other, recharge occurs, thereby activating the flow of the underground aquifer, and improving the heat exchange efficiency of each underground well without discharging groundwater.

The first geothermal top protection heat exchange unit 100 is installed on the first underground well 10, and includes a first upper protection hole casing member 110 whose upper part is exposed to the ground, and the first underground well 10. It is connected to a first deep well pump 40 arranged to be inserted into the inside of (10), so that the geothermal exchange water pumped by the first deep well pump 40 is discharged to the outside of the first underground well (10). a first pumping piping member 130, and a first upper portion disposed through the first upper protective hole casing member 110 at a predetermined distance from the inner wall of the first upper protective hole casing member 110. A protection hole inner pipe 146 and a first inner pipe extension pipe extending to the first upper protection hole inner pipe 146 and protruding to the outside of the first upper protection hole casing member 110 ( 145).

In addition, the second geothermal upper protection heat exchange unit 100' is installed on the second underground well, and includes a second upper protection hole casing member 110' whose upper part is exposed to the ground, and the second underground a second pumping piping member connected to a second deep well pump arranged to be inserted into the well, and allowing the geothermal exchange water pumped by the second deep well pump to be discharged to the outside of the second underground well; A second upper protection hole inner pipe 146' arranged to penetrate the second upper protection hole casing member 110' at a predetermined distance from the inner wall of the upper protection hole casing member 110', and the second upper protection hole inner pipe 146' 2 It includes a second inner pipe extension pipe 145' that extends to the upper protection hole inner pipe 146' and protrudes to the outside of the second upper protection hole casing member 110'.

The geothermal exchange water flow structure 150 according to this embodiment includes a demand supply pipe 151.

The demand source supply pipe 151 extends from the first discharge pipe member 140 and the second discharge pipe member 140', respectively, and connects the first underground well module 190 and the second underground well module 195. This is to allow the geothermal exchange water to flow from the demand side to the supply header (not shown).

In this embodiment, the demand destination supply pipe 151 extending from the first discharge piping member 140 and the second discharge piping member 140' are combined to form a single pipe, and the supply header It extends toward and connected to the supply header, and the demand return pipe 152 extends from the return header toward the first underground well module 190 and the second underground well module 195 in the form of a single pipe. Next, it is branched into the first underground well module 190 and the second underground well module 195 so that the geothermal exchange water is returned to the first underground well module 190 and the second underground well module 195, respectively. It flows. Then, the plurality of underground wells 10 can be connected to the supply header or the return header in a simple structure, and the construction cost for such connection can be greatly reduced.

The demand return pipe 152 is branched in the vicinity of the return header and heads to the first underground well module 190 and the second underground well module 195, respectively, and each branch of the demand return pipe 152 The first water return amount automatic proportional control valve 156 and the second water return amount automatic proportional control valve 157 are disposed in each part, and each branched portion of the demand return water return pipe 152 is connected to the first underground well. They are respectively connected to the first water return side inlet pipe 142 constituting the module 190 and the second water return side inlet pipe 142' constituting the second underground well module 195.

At this time, each return amount of the geothermal exchange water returned to the first underground well module 190 and the second underground well module 195 is adjusted by the control unit 158, so that each underground well module 195 A height difference in the natural water level of groundwater is induced in the installed first underground well module 190 and the second underground well module 195, so that the first underground well module 190 and the second underground well module 195 Bleeding and recharge are achieved, thereby activating the flow of the underground aquifer, and improving the heat exchange efficiency of each underground well without discharging groundwater.

In this embodiment, the bleeding containment pipe member 153 connects the first inner pipe extension pipe 145 and the second inner pipe extension pipe 145'.

The geothermal exchange water flow structure 150 according to this embodiment includes a first water return side connection pipe 155, a first float valve 170, a second water return side connection pipe 155', and a second float valve. It further includes (170').

The first water return side connection pipe 155 has a lower part relatively close to the point connected to the first inner pipe extension pipe 145 compared to the central part of the bleeding containment pipe member 153, and the demand return pipe. The upper part of (152) is connected to the part spaced a predetermined distance from the part where the demand return pipe 152 and the first water return side inlet pipe 142 are connected.

The first float valve 170 is disposed between the first water return side connection pipe 155 and the demand return water pipe 152, and flows from the first water return side connection pipe 155 to the demand return water pipe 152. The geothermal exchange water is allowed to flow only in this direction.

In detail, the first float valve 170 includes a first float casing 171 that is in communication with the first water return side connection pipe 155 and the demand water return pipe 152 and has an empty interior, and the first float. A first float lower panel 172 in the form of a plate dividing across the lower part of the casing 171, a plurality of first float lower through holes 173 formed in the first float lower panel 172, and the first float lower panel 173. 1 A first float upper panel 175 in the form of a plate dividing across the upper part of the float casing 171, a first float upper through hole 176 penetrating the central part of the first float upper panel 175, and , a first floating ball 174 disposed between the first float lower panel 172 and the first float upper panel 175 and capable of floating on the water surface of the geothermal exchange water.

The geothermal exchange water bleeds from the first underground well 10 of the first underground well module 190 and overflows through the first inner pipe extension pipe 145, and in the second underground well module 195, the geothermal exchange water bleeds out. When bleeding of geothermal exchange water does not occur, the first inner pipe extension pipe 145 is formed at a relatively higher position compared to the first return water side inlet pipe 142, so that the first inner pipe extension pipe 145 Inside the first float casing 171, which is located at a relatively lower position compared to the pipe 145, the geothermal exchange water overflowing from the first upper protection hole casing member 110 is connected to the first water return side inlet pipe ( 142) and flows back through the demand return pipe 152 and then flows through the first float lower through hole 173 into the space between the first float upper panel 175 and the first float lower panel 172. flows in, and as a result, the first floating ball 174 floats and blocks the first float upper through hole 176, thereby causing the first float valve 170 to flow through the first water return side connection pipe 155. The flow of the geothermal exchange water toward the side is blocked, and the geothermal exchange water bleeding through the first inner pipe extension pipe 145 flows through the bleeding recharge pipe member 153 to the second underground well module ( 195) can be cultivated.

If the geothermal exchange water does not bleed through the first inner pipe extension pipe 145 in the first underground well 10 of the first underground well module 190, the first upper protection hole casing member 110 ), the water level of the geothermal exchange water does not reach the first water return side inlet pipe 142, and bleeding of the geothermal exchange water occurs in the second underground well module 195, the first The floating ball 174 is lowered toward the first float lower panel 172, and the first float upper through hole 176 is opened, thereby bleeding from the second underground well module 195. The geothermal exchange water flowing through the bleeding recharge pipe member 153 flows through the first water return side connection pipe 155, and then passes through the upper through hole 176 of the first float and the lower side of the first float. It can be filled into the inside of the first upper protective hole casing member 110 through the hole 173, the demand return pipe 152, and the first return water side inlet pipe 142.

As described above, as the bleeding recharge pipe member 153 is applied, the geothermal exchange water bleed from at least one of the plurality of underground wells 10 can flow to another of the plurality of underground wells 10. Thus, the geothermal exchange water bleed from at least one of the plurality of underground wells 10 can be recharged into another of the plurality of underground wells 10.

The second water return side connection pipe 155' has a lower part relatively close to the point connected to the second inner pipe extension pipe 145' compared to the central part of the bleeding containment pipe member 153, and a lower part of the demand source. It connects the upper part of the water return pipe 152 that is spaced a predetermined distance from the portion where the customer water return pipe 152 and the second water return side inlet pipe 142' are connected.

The second float valve 170' is disposed between the second water return side connection pipe 155' and the customer return pipe 152, and connects the customer return pipe from the second water return side connection pipe 155'. The geothermal exchange water is allowed to flow only toward (152).

Since the specific configuration of the second float valve 170' is the same as that of the first float valve 170, it is replaced with the description of the first float valve 170 described above, and the overlapping description is omitted here. Do this.

Hereinafter, the operation of the geothermal exchange water flow structure 150 according to this embodiment will be described with reference to the drawings.

If bleeding does not occur in both the first underground well module 190 and the second underground well module 195, the first discharge piping member 140 and the second discharge piping member 140' Each of the geothermal exchange water discharged through the water supply pipe 151 is supplied to the supply header, and then transfers heat to a heat pump (not shown) on the demand side, and then transferred to the water return header and the demand water return pipe. After flowing through (152), the first underground well module 190 and the second underground well module ( By flowing into the interior of 195), the geothermal exchange water is circulated.

When bleeding occurs in the first underground well module 190 and recharge occurs in the second underground well module 195, the geothermal exchange water bleeding from the first upper protection hole casing member 110 is It flows through the first inner pipe extension pipe 145 and the bleeding containment pipe member 153, and then flows through the second water return side connection pipe 155', the second float valve 170', and the demand water return pipe. It can be filled into the inside of the second upper protective hole casing member 110' through (152) and the second water return side inlet pipe 142'.

At this time, the first float valve 170 blocks the flow of the geothermal exchange water through the first water return side connection pipe 155, thereby releasing the geothermal heat bleeding from the first upper protection hole casing member 110. Exchange water does not flow through the first water exchange side connection pipe 155, but can flow toward the second underground well module 195 through the bleeding recharge pipe member 153.

When bleeding occurs in the second underground well module 195 and recharge occurs in the first underground well module 190, the geothermal exchange water bleeding from the second upper protective hole casing member 110' It flows through the second inner pipe extension pipe 145' and the bleeding containment pipe member 153, and then flows through the first water return side connection pipe 155, the first float valve 170, and the demand water return pipe. It can be filled into the inside of the first upper protective hole casing member 110 through (152) and the first water return side inlet pipe 142.

At this time, the second float valve 170' blocks the flow of the geothermal exchange water through the second water return side connection pipe 155', thereby preventing bleeding from the second upper protection hole casing member 110'. The geothermal exchange water does not flow into the second water return side connection pipe 155', but can flow toward the first underground well module 190 through the bleeding recharge pipe member 153.

As described above, the geothermal upper protection heat exchange unit 100 includes the upper protection hole casing member 110, the pumping piping member 130, and the upper protection hole removable cover member 120, The pumping piping member 130 is connected to the upper protection hole removable cover member 120, and the deep well pump 40 is connected to the pumping piping member 130, so that the upper protection hole removable cover member 120 When separated from the upper protection hole casing member 110, the pumping piping member 130 connected to the upper protection hole removable cover member 120 and the deep well pump 40 connected to the pumping piping member 130 are It can be separated from the upper protection hole casing member 110 together with the upper protection hole detachable cover member 120, and thus the deep well pump 40 disposed inside the underground well 10 can be replaced. , access to the deep well pump 40 for repairs, etc. can be easily achieved.

In addition, as the geothermal exchange water flow structure 150 includes the first underground well module 190, the second underground well module 195, and the bleeding recharge pipe member 153, a plurality of the above The geothermal exchange water bleeding from at least one of the underground wells 10 can flow to another of the plurality of underground wells 10, so that the geothermal exchange water bleeding from at least one of the plurality of underground wells 10 It can be cultivated with another of the plurality of underground wells (10).

In addition, the first discharge piping member 140 and the second discharge piping respectively constitute the first underground well module 190 and the second underground well module 195 in the geothermal exchange water flow structure 150. The consumer supply pipes 151 extending from the member 140' are combined to form a single pipe and extend toward the supply header to be connected to the supply header, and the consumer water return pipe 152 is formed as a single pipe. In the form of a pipe, it extends from the water return header toward the first underground well module 190 and the second underground well module 195, and then the first underground well module 190 and the second underground well module 195. By branching in the vicinity and flowing the geothermal exchange water to the first underground well module 190 and the second underground well module 195, respectively, the plurality of underground wells 10 are connected to the supply header or the water return. Since it is possible to connect with a header in a simple structure, the construction cost for such connection can be greatly reduced.

Hereinafter, a geothermal upper protection heat exchange unit and a geothermal heat exchange water flow structure including the geothermal upper protection heat exchange unit according to other embodiments of the present invention will be described with reference to the drawings. In carrying out this description, descriptions that overlap with those already described in the above-described first embodiment of the present invention will be replaced and omitted here.

Figure 6 is a diagram showing the geothermal exchange water flow structure according to the second embodiment of the present invention, Figure 7 is an enlarged view of portion C shown in Figure 5, and Figure 8 is a diagram showing the flow structure of geothermal exchange water according to the second embodiment of the present invention. This is a view from above of part of the geothermal exchange water flow structure.

Referring to FIGS. 6 to 8 together, the geothermal exchange water flow structure 250 according to this embodiment includes a plurality of first underground well modules 290, a plurality of second underground well modules 295, and a supply to the demander. Piping 251, demand return pipe 252, first water return amount automatic proportional control valve 256, second water return amount automatic proportional control valve 257, control unit 258, and balancing tube member ( 260, 260').

The plurality of first underground well modules 290 have a first geothermal upper protection heat exchange unit 200 connected to a plurality of first underground wells formed in the ground.

The plurality of second underground well modules 295 include a second geothermal upper protection heat exchange unit (200', 200") on a plurality of second underground wells formed in the ground to be spaced apart from the first underground well by a predetermined distance. They are each formed in a connected form, but are formed to be spaced apart from the first underground well module 290 at a predetermined distance.

The balancing tube members 260 and 260' connect the plurality of first underground well modules 290 or the plurality of second underground well modules 295 and the demand source water return pipe 252, As the geothermal exchange water flowing through 252 passes through, the geothermal exchange water is distributed and flows to each of the first underground well modules 290 or each of the second underground well modules 295.

The balancing tube members 260 and 260' include a balancing tube member 260 connected to a plurality of first underground well modules 290 and a balancing tube member 260 connected to a plurality of second underground well modules 295. It includes a one-side tube member 260'. Hereinafter, the specific configuration of the balancing one-side tube member 260' will be described. However, the specific configuration of the balancing one-side tube member 260' is described below. The same can be applied to the other balancing tube member 260, and redundant description thereof will be omitted.

In detail, the balancing side tube member 260' includes a balancing side tube body 261', a balancing side tube inlet pipe 262', and a balancing side tube discharge pipe 263'.

The balancing tube body 261' is formed in the form of a tube of a predetermined length with an empty interior, and is arranged perpendicular to the direction of gravity and horizontally on the ground.

The balancing tube inlet pipe 262' extends from the demand return pipe 252, and flows from the return header through the second water return amount automatic proportional control valve 257 and the demand return pipe 252. It protrudes from the lower part of the balancing tube body 261' and is connected to the demand return pipe 252 so that the geothermal exchange water can flow into the balancing tube body 261'.

The balancing one-side tube discharge pipe 263' allows the geothermal exchange water flowing into the balancing one-side tube body 261' through the balancing one-side tube inlet pipe 262' to be used in each of the second underground well modules ( 295), a plurality of tubes protrude from the upper part of the balancing tube body 261', and connect to each water return side inlet pipe 242', 242" of each second underground well module 295. It is connected.

As in FIG. 7, the demand supply pipe 251 is connected to each discharge pipe member (240', 240"), but in FIG. 8, in order to express the connection relationship of each water return side inlet pipe (242', 242"), The illustration of the demand supply pipe 251 is omitted.

The geothermal exchange water flowing through the balancing one-side tube inlet pipe 262' rises inside the balancing one-side tube body 261' and then flows out through each balancing one-side tube discharge pipe 263'. It is distributed to each second underground well module 295 and can flow.

The balancing tube members 260 and 260' are installed on the balancing tube body 261' and include a water level detection sensor 264' that detects the water level inside the balancing tube body 261'. ) includes.

The one-side water level detection sensor 264' is connected to the upper part of the balancing one-side tube body 261' and is capable of detecting the water level inside the balancing one-side tube body 261', as described above. A float valve such as the first float valve presented in the first embodiment may be presented as an example.

As described above, the geothermal exchange water flow structure 250 includes a plurality of first underground well modules 290, a plurality of second underground well modules 295, the demand supply pipe 251, and the A demand source water return pipe 252, the first water return amount automatic proportional control valve 256, the second water return amount automatic proportional control valve 257, the control unit 258, and the balancing tube member 260, 260'), the geothermal exchange water flowing through the demand return pipe 252 passes through the balancing tube members 260 and 260' and is then distributed to each of the second underground well modules 295. It can flow, and as a result, a plurality of underground wells can be connected to the water return header in a simpler structure, and the construction cost for such connection can be significantly reduced.

Here, when the balancing tube members 260 and 260' are omitted, the corresponding underground well module may be composed of a single well module. For example, when the balancing tube member 260 is omitted, the first underground well module 290 may be configured as a single unit.

Hereinafter, with reference to the drawings, a geothermal upper protection heat exchange unit and a geothermal heat exchange water flow structure including the geothermal upper protection heat exchange unit according to the third embodiment of the present invention will be described. In carrying out this description, descriptions that overlap with those already described in the first and second embodiments of the present invention will be replaced and omitted here.

Figure 9 is a view looking down from above on a part of the geothermal exchange water flow structure according to the third embodiment of the present invention.

Referring to FIG. 9, the geothermal exchange water flow structure 350 according to this embodiment includes a first underground well module, a plurality of second underground well modules, a demand source supply pipe, a demand source return pipe, and a balancing tube member 360'. ) together with a bleeding containment pipe member 353.

In addition, the geothermal exchange water flow structure 350 further includes a bleeding balancing pipe 355' on one side.

The bleeding recharge pipe member 353 connects the first underground well module and the second underground well module so that the geothermal exchange water bleed from the first underground well module flows into the interior of the second underground well module. .

The bleeding recharge pipe member 353 connects the inner pipe extension pipe of the first underground well module and the bleeding balancing one-side connection pipe 355'.

The bleeding balancing one-side connection pipe 355' connects a portion of the bleeding recharge pipe member 353 relatively close to the plurality of second underground well modules with the balancing one-side tube member 360', At least a portion of the geothermal exchange water bleeding from the first underground well module and flowing through the bleeding recharge pipe member 353 is allowed to flow into the balancing tube member 360'.

The bleeding balancing one-side connection pipe 355' may connect the lower part of the bleeding containment pipe member 353 and the upper part of the balancing one-side tube body 361' constituting the balancing one-side tube member 360'. there is.

If the one-side water level detection sensor 364' constituting the balancing one-side tube member 360' is a float valve such as the first float valve presented in the first embodiment described above, the bleeding balancing one-side connection pipe ( 355') may be connected to the upper part of the balancing tube body 361' through the one side water level detection sensor 364'.

Meanwhile, the geothermal exchange water flow structure 350 is formed between each of the second underground well modules, and includes a pipe on one side of the module connection to enable the flow of the geothermal exchange water between each of the second underground well modules ( 354) is further included.

The module connection pipe 354 is formed between each second underground well module to enable the flow of geothermal exchange water between each second underground well module.

In detail, the module connection pipe 354 is an extension pipe for each second inner pipe constituting a plurality of second geothermal upper protection heat exchange units (300', 300") constituting each second underground well module. It is connected and connected to the bleeding containment pipe member 353.

Meanwhile, the geothermal exchange water flow structure 350 further includes a bleeding balancing other side connection pipe 355.

The bleeding balancing other side connection pipe 355 is a portion of the bleeding recharge pipe member 353 that is relatively close to the first underground well module and the first water return side inlet pipe 342 constituting the first underground well module. ) can be connected.

When bleeding occurs in at least one of the second underground well modules, the bleeding geothermal exchange water is supplied to the module connection pipe 354, the bleeding recharge pipe member 353, and the bleeding balancing pipe connected to the other side. (355) and may flow into the first underground well module through the first water exchange side inlet pipe 342, and when bleeding occurs in the first underground well module, the bleeded geothermal exchange water is It can flow into each of the second underground well modules through the cooling pipe member 353, the bleeding balancing side connection pipe 355', and the balancing side tube member 360'.

Hereinafter, with reference to the drawings, a geothermal upper protection heat exchange unit and a geothermal heat exchange water flow structure including the geothermal upper protection heat exchange unit according to the fourth embodiment of the present invention will be described. In carrying out this description, descriptions that overlap with those already described in the first to third embodiments of the present invention will be replaced and omitted here.

Figure 10 is a view looking down from above on a part of the geothermal exchange water flow structure according to the fourth embodiment of the present invention.

Referring to FIG. 10, the geothermal exchange water flow structure 450 according to this embodiment includes a plurality of first underground well modules, a plurality of second underground well modules, a demand source supply pipe, a demand source return pipe, and a balancing unit. It includes a side tube member 460' and a balancing other side tube member 460.

The balancing tube member 460 connects a plurality of first underground well modules and the demand return pipe, so that the geothermal exchange water flowing through the demand return pipe passes through and transfers the geothermal heat to each first underground well module. This is to ensure that the exchange water is distributed and flows.

The balancing other side tube member 460 includes a balancing other side tube body 461, a balancing other side tube inlet pipe 462, and a balancing other side tube discharge pipe 463.

The balancing tube body 461 is formed in the form of a tube of a predetermined length with an empty interior, and is arranged perpendicular to the direction of gravity and horizontally on the ground.

The balancing other side tube inlet pipe 462 extends from the demand return pipe, so that the geothermal exchange water flowing from the return header through the demand return pipe can flow into the balancing other side tube body 461. , which protrudes from the lower part of the other balancing tube body 461 and is connected to the demand return pipe.

The balancing other side tube discharge pipe 463 allows the geothermal exchange water flowing into the balancing other side tube body 461 through the balancing other side tube inlet pipe 462 to flow out to each of the first underground well modules. A plurality of tubes protrude from the upper part of the balancing other side tube body 461, and are connected to each water return side inlet pipe of each first underground well module.

Meanwhile, the geothermal exchange water flow structure 450 includes a bleeding recharge pipe member 453.

The bleeding recharge pipe member 453 allows the geothermal exchange water bleed from any one of the first underground well module and the second underground well module to enter the inside of the other of the first underground well module and the second underground well module. The first underground well module and the second underground well module are connected so that the flow flows into the well.

The geothermal exchange water flow structure 450 further includes a bleeding balancing other side connection pipe 455.

The bleeding balancing other side connection pipe 455 connects a portion of the bleeding recharge pipe member 453 that is relatively close to the first underground well module and the balancing other side tube member 460 to connect the second underground well module. At least a portion of the geothermal exchange water that bleeds from the well module and flows through the bleeding recharge pipe member 453 is allowed to flow into the other balancing tube member 460.

The bleeding balancing other side connection pipe 455 may connect the lower part of the bleeding containment pipe member 453 and the upper part of the balancing other side tube body 461 constituting the balancing other side tube member 460.

Meanwhile, the geothermal exchange water flow structure 450 is formed between each of the first underground well modules, and the other side pipe connecting the modules allows the flow of the geothermal exchange water between each of the first underground well modules ( 456).

The module connection pipe 456 is an extension pipe for each first inner pipe constituting a plurality of first geothermal upper protection heat exchange units 400, 400"' constituting each of the plurality of first underground well modules. It is connected and connected to the bleeding containment pipe member 453.

When bleeding occurs in at least one of the first underground well modules, the bleeding geothermal exchange water is connected to the other side of the module connection pipe 456, the bleeding recharge pipe member 453, and the bleeding balancing pipe to one side ( 455') and may flow into the second underground well module through the balancing tube member 460', and when bleeding occurs in the second underground well module, the bleeded geothermal exchange water is It can flow through the cooling pipe member 453, the bleeding balancing other side connection pipe 455, and the balancing other side tube member 460, and then flow to the demand supply pipe.

Figure 11 is an enlarged view of a portion of the geothermal exchange water flow structure according to the fifth embodiment of the present invention.

Referring to FIG. 11, in this embodiment, the upper part of the well inner pipe 20 is inserted into the lower part of the upper protected hole inner pipe 546, and the upper protected hole inner pipe 546 and the well inner pipe A sliding gasket 516 is installed between (20).

The sliding gasket 516 is fixed to one of the upper protection hole inner pipe 546 and the well inner pipe 20, and the other of the upper protection hole inner pipe 546 and the well inner pipe 20. It can be moved in a state of being engaged with one and in contact with the other surface of the upper protection hole inner pipe 546 and the well inner pipe 20, and is made of an elastic material such as rubber or silicon, Leakage of geothermal exchange water through the gap between the upper protection hole inner pipe 546 and the well inner pipe 20 can be prevented.

The well inner pipe 20 is made of polyvinyl chloride, etc., and its length varies as it contracts and relaxes according to temperature changes. Even if the well inner pipe 20 contracts and relaxes as described above, the sliding gasket 516 is It is fixed to one of the upper protection hole inner pipe 546 and the well inner pipe 20, and the upper protection hole is engaged with the other one of the upper protection hole inner pipe 546 and the well inner pipe 20. The ball inner pipe 546 and the other surface of the well inner pipe 20 are elastically deformed and are kept in contact with each other, so that a gap between the upper protection hole inner pipe 546 and the well inner pipe 20 is maintained. By blocking the gap with the sliding gasket 516, random leakage of the geothermal exchange water through the gap between the upper protection hole inner pipe 546 and the well inner pipe 20 can be prevented.

Figure 12 is an enlarged view of a portion of the geothermal exchange water flow structure according to the sixth embodiment of the present invention.

Referring to FIG. 12, the upper protection heat exchange unit for geothermal heat according to this embodiment includes an upper protection hole removable cover member 620, a double cover member 625, an external inflow blocking member 680, and an internal outflow blocking member. Includes (685).

The upper protection hole detachable cover member 620 includes a detachable cover body 621 and a pumping pipe fixture 622.

The double cover member 625 is coupled to the upper part of the removable cover body 621 to seal the inside of the underground well 10 from the outside, allowing air to flow through the double cover member 625. One, the flow of water is blocked.

In detail, the double cover member 625 includes a double cover body 627 that covers the open top of the removable cover body 621, and a double cover body 627 that extends above the double cover body 627 to a predetermined height and has an empty interior. It includes a double cover upper extension 626 formed in a shape, and a double upper cover 628 covering the open top of the double cover upper extension 626.

The double cover body 627 and the detachable cover body 621 may be coupled to each other using a coupling means such as a bolt.

The external inflow blocking member 680 allows the inflow of external air into the double cover member 625, but blocks the inflow of external contaminated water into the double cover member 625.

In detail, the external inflow blocking member 680 includes an external inflow pipe 681a, an external inflow blocking body 681, an external inflow blocking lifting body 684, an external inflow blocking blocking body 683, and an external inflow blocking member 680. Includes hole forming panel 682.

One end of the external inlet pipe 681a passes through the side wall of the double cover upper extension 626 and is in communication with the outside, and is formed to be long at a predetermined length, through which the external air can be introduced and flow.

The external inflow blocking body 681 is disposed inside the double cover upper extension 626, and is formed in the form of a pipe communicating in the vertical direction of the double cover upper extension 626, the lower end of which is the external inlet pipe. It is connected to the other end of (681a), and the external air flowing through the external inlet pipe (681a) flows in from the lower end and flows out through the upper end, so that the external air flows into the double cover upper extension (626). The goal is to ensure that it can be introduced internally.

The external inflow blocking elevating body 684 is capable of being lifted up and down inside the external inflow blocking body 681, is formed as a sphere, and is made of plastic, etc., so that it can float on the surface of the external contaminated water. will be.

The external inflow blocking body 683 is formed at the top of the external inflow blocking body 681, and is formed with a relatively small diameter compared to the diameter of the external inflow blocking body 681, and is formed to form the external inflow blocking body (683). The external inflow blocking elevating body 684 floating along the inside of the 681 is caught, thereby closing the open top of the external inflow blocking body 681.

The external inlet hole forming panel 682 is formed in the form of a panel dividing the lower space of the external inflow blocking body 681, and has a relatively small external inlet size compared to the external inflow blocking elevating body 684. A hole is formed through which the external air flows, and the external inflow blocking elevating body 684 is caught to prevent the external inflow blocking elevating body 684 from arbitrarily leaving the outside of the external inflow blocking body 681.

In normal times when the double cover member 625 is not submerged, the external inflow blocking elevating body 684 sinks to the lower part of the external inflow blocking body 681 and is caught in the external inflow hole forming panel 682. Maintaining, the external air is introduced through the external inlet pipe 681a, the external air flows through the external inflow blocking body 681, and then flows into the interior of the double cover member 625. You can.

On the other hand, in an emergency in which the double cover member 625 is submerged, such as a flood, the external contaminated water flows in through the external inlet pipe 681a, and the external contaminated water fills the inside of the external inflow blocking body 681. By rising, the external inflow blocking elevating body 684 also rises to the top of the external inflow blocking body 681, so that the external inflow blocking elevating body 684 is caught by the external inflow blocking blocking body 683 and is caught by the external inflow blocking lifting body 683. The top of the inflow blocking body 681 is closed, and as a result, the external contaminated water that flows in through the external inflow pipe 681a and fills the inside of the external inflow blocking body 681 is inside the double cover member 625. The inflow into the system can be blocked.

As the external inflow blocking member 680 is disposed, in normal times when the double cover member 625 is not flooded, the outside air flows into the double cover member 625 through the external inflow blocking member 680. Although it can flow inside, in an emergency when the double cover member 625 is flooded, the external inflow blocking member 680 blocks the external contaminated water from flowing into the double cover member 625. It becomes possible.

The internal outflow blocking member 685 allows the external air introduced into the double cover upper extension 626 through the external inflow blocking member 680 to enter the removable cover body 621. However, the inflow of geothermal exchange water filling the inside of the removable cover body 621 into the double cover member 625 is blocked.

The geothermal exchange water inside the underground well 10 may fill up due to various causes such as changes in water return flow rate during the operation process. As described above, the geothermal exchange water fills up above the top of the detachable cover body 621. In this case, the internal outflow blocking member 685 may block the inflow of the geothermal exchange water into the double cover member 625.

In detail, the internal leak blocking member 685 includes an internal leak blocking body 686, an internal leak blocking elevating member 689, an internal leak blocking blocking body 688, and an internal leak blocking panel 687. .

The internal outflow blocking body 686 extends through the double cover body 627 to a predetermined height above the double cover body 627, and is a pipe communicating in the vertical direction of the double cover upper extension body 626. It is formed in a shape so that the external air introduced into the interior of the double cover upper extension 626 through the external inflow blocking member 680 can be introduced into the interior of the removable cover body 621.

The internal outflow blocking elevating body 689 is capable of being raised and lowered inside the internal outflow blocking body 686, is formed as a sphere, and is made of plastic, etc., so that it can float on the water surface of the geothermal exchange water. will be.

The internal outflow blocking blocking body 688 is formed at the top of the internal outflow blocking body 686, and is formed with a relatively small diameter compared to the diameter of the internal outflow blocking body 686, so as to form the internal outflow blocking body ( The internal outflow blocking elevating body 689 floating along the inside of the 686 is caught, so that the open upper end of the internal outflow blocking body 686 is closed.

The internal outflow blocking panel 687 is formed in the form of a panel that partitions across the lower space of the internal outflow blocking body 686, and has an internal inlet hole of a relatively small size compared to the internal outflow blocking elevating body 689. This is formed so that the outside air flows, but the internal outflow blocking elevating body 689 is caught to prevent the internal outflow blocking elevating body 689 from arbitrarily leaving the outside of the internal outflow blocking body 686.

The upper end of the external inflow blocking body 681 of the external inflow blocking member 680 is disposed at a relatively higher position than the upper end of the internal outflow blocking body 686 of the internal outflow blocking member 685.

In normal times when the geothermal exchange water does not leak into the removable cover body 621, the internal leak blocking elevating body 689 sinks to the lower part of the internal leak blocking body 686 and the internal leak blocking panel ( 687) is maintained, and the external air introduced into the interior of the double cover upper extension 626 through the external inflow blocking member 680 may be introduced into the interior of the removable cover body 621. .

On the other hand, in an emergency when the geothermal exchange water flows out and fills the inside of the removable cover body 621, the geothermal exchange water fills the inside of the internal outflow blocking body 686, thereby causing the internal outflow blocking elevating body 689 ) also rises to the top of the internal leak blocking body 686, so that the internal leak blocking elevating body 689 is caught by the internal leak blocking blocking body 688 and the top of the internal leak blocking body 686 is closed. , Accordingly, the phenomenon of the geothermal exchange water flowing into the interior of the double cover member 625 can be prevented.

As the internal outflow blocking member 685 is disposed, in normal times when the geothermal exchange water does not leak into the inside of the detachable cover body 621, the outside air flows through the internal outflow blocking member 685. Although it can flow into the inside of the cover body 621, in an emergency when the geothermal exchange water flows out and fills the inside of the removable cover body 621, the geothermal exchange water is blocked by the internal outflow blocking member 685. The phenomenon of flowing into the inside of the cover member 625 can be blocked, and accordingly, when the geothermal exchange water flows into the double cover member 625, the geothermal exchange water overflows to the outside of the upper protection heat exchange unit for geothermal heat. It is possible to prevent the surrounding area of the geothermal upper protection heat exchange unit from being polluted or an accident occurring due to an ice sheet formed by the geothermal exchange water overflowing to the outside of the geothermal upper protection heat exchange unit in winter.

Although the present invention has been shown and described in relation to specific embodiments in the above, those skilled in the art can modify the present invention in various ways without departing from the spirit and scope of the present invention as set forth in the claims below. You will see that it can be changed. However, we would like to make it clear that all such modifications and modified structures are included within the scope of the present invention.

According to an upper protection heat exchange unit for geothermal heat and a geothermal exchange water flow structure including the upper protection heat exchange unit for geothermal heat according to an aspect of the present invention, the deep well for replacement or repair of a deep well pump disposed inside an underground well. To facilitate access to the pump, to allow geothermal exchange water bleed from at least one of the plurality of underground wells to flow to another of the plurality of underground wells, and to return geothermal heat to each of the plurality of underground wells. By controlling the amount of exchange water to form a difference in the natural level of groundwater in each underground well, bleeding occurs in some of the underground wells and recharge occurs in other parts of the wells. Thus, the flow of the underground aquifer can be activated, the heat exchange efficiency of each underground well can be improved without discharge of groundwater, and a plurality of underground wells can be connected to the supply header or return header in a simple structure, thereby improving the industry. It can be said that the possibility of using it is high.

100: Top protection heat exchange unit for geothermal heat
110: Upper protective hole casing member
115: Contraction/expansion cushioning member
120: Upper protective hole removable cover member
130: Pumping piping member
140: Discharge piping member
141: Discharge backflow check valve
146: Piping inside the upper protection hole
150: Geothermal exchange water flow structure
153: Absence of bleeding tank pipe
190: First underground well module
195: Second underground well module

Claims (19)

delete delete delete delete delete delete delete delete A first underground well module in which a first geothermal upper protection heat exchange unit is connected to a first underground well formed in the ground;
A second geothermal upper protection heat exchange unit is formed on a plurality of second underground wells formed in the ground to be spaced a predetermined distance apart from the first underground well module, and is formed to be spaced a predetermined distance from the first underground well module. a plurality of second underground well modules;
a demand source supply pipe that allows geothermal exchange water to flow from the first underground well module and the second underground well module to the demand source;
a demand source return pipe that allows the geothermal exchange water to flow from the demand source toward the first underground well module and the second underground well module;
A balancing work that connects a plurality of second underground well modules and the customer return pipe, so that the geothermal exchange water flowing through the customer return pipe passes through and distributes the geothermal exchange water to each of the second underground well modules. side tube member;
a bleeding recharge pipe member connecting the first underground well module and the second underground well module so that the geothermal exchange water bleed from the first underground well module flows into the interior of the second underground well module;
By connecting the balancing tube member with a plurality of portions relatively close to the second underground well module among the bleeding recharge pipe members, the bleeding flow through the bleeding recharge pipe member bleeds from the first underground well module. a bleeding balancing side connection pipe that allows at least a portion of geothermal exchange water to flow into the balancing side tube member;
A pipe on one side of the module connection is formed between each of the second underground well modules to enable flow of the geothermal exchange water between each of the second underground well modules; and
It includes a bleeding balancing other side connection pipe connecting a portion of the bleeding recharge pipe member relatively close to the first underground well module and the first water return side inlet pipe constituting the first underground well module,
When bleeding occurs in at least one of the second underground well modules, the geothermal exchange water bleeding from at least one of the second underground well modules is supplied to the module connection pipe, the bleeding recharge pipe member, and the bleeding balancing. It may flow into the first underground well module through the other side connection pipe and the first return water side inlet pipe,
When bleeding occurs in the first underground well module, the geothermal exchange water bleed from the first underground well module is supplied to each of the above through the bleeding recharge pipe member, the bleeding balancing one-side connection pipe, and the balancing one-side tube member. A geothermal exchange water flow structure, characterized in that it can flow into the second underground well module. According to clause 9,
The balancing tube member on one side is
A balancing tube body on one side, which is formed in the form of an empty tube of a predetermined length and is arranged perpendicular to the direction of gravity,
A balancing tube inlet protrudes from the lower part of the balancing one-side tube body and is connected to the consumer return pipe so that the geothermal exchange water flowing through the demand return pipe can flow into the interior of the balancing one side tube body. coffin,
It protrudes from the upper part of the balancing one-side tube body so that the geothermal exchange water flowing into the balancing one-side tube body through the balancing one-side tube inlet pipe can flow out to each of the second underground well modules, and each of the balancing one-side tube bodies 2 It includes a balancing tube discharge pipe connected to the underground well module,
The geothermal exchange water flowing through the balancing one-side tube inlet pipe rises inside the balancing one-side tube body and then is distributed and flows to each of the second underground well modules through each balancing one-side tube discharge pipe. Characterized by geothermal exchange water flow structure. According to claim 10,
The balancing tube member on one side is
A geothermal exchange water flow structure comprising a water level detection sensor installed on the balancing tube body and detecting the water level inside the balancing tube body. delete delete delete delete delete delete delete delete