WO2011083899A1

WO2011083899A1 - Geothermal coil pipe header device, very deep vertical closed-type ground-coupled heat exchanger using same, and method for installing the heat exchanger

Info

Publication number: WO2011083899A1
Application number: PCT/KR2010/004826
Authority: WO
Inventors: 조희남
Original assignee: 지앤지테크놀러지
Priority date: 2010-01-11
Filing date: 2010-07-23
Publication date: 2011-07-14

Abstract

The present invention relates to a very deep vertical closed-type ground-coupled heat exchanger that uses geothermal energy without taking in underground water, and to a method for installing the heat exchanger. More particularly, an anchor connected to a rope is disposed in a very deep geothermal excavation hole formed to use geothermal energy, then a header device is installed on one end of a U-bend geothermal coil pipe, then the geothermal coil pipe is coupled to the rope, and then the rope is pulled and wound using a winch on the ground. Accordingly, the U-bend geothermal coil pipe, which is made of polyethylene (PE) and has poor rigidity, can be forcibly inserted down to the very deep bottom of the geothermal excavation hole, thereby increasing the heat transfer area of the heat exchanger.

Description

Geothermal coil pipe header device, high depth vertical hermetic underground heat exchanger and installation method

The present invention relates to a high-depth vertically sealed underground heat exchanger and installation method as a closed underground heat exchanger device capable of using underground heat without taking ground water. More specifically, in order to use geothermal heat, anchors connected with ropes are installed inside the high-depth (200-500 m) geothermal excavation hole, and a header device is installed at the end of the U-band geothermal coil pipe, and then the ropes are coupled to the ground. By pulling the rope, the rigid polyethylene (PE) U-band geothermal coiled pipe was installed to the bottom of the geothermal excavation hole without obstacles to make the construction of the underground heat exchanger convenient.

Geothermal heat is divided into open underground heat exchanger and closed underground heat exchanger. Open underground underground heat exchanger has the same structure and facilities as general groundwater core wells, and it takes the form of pumping groundwater without using a net and using geothermal power of groundwater only and then injecting it back into the groundwater well which was pumped again. Exposed to the ground part is a way of high groundwater contamination.

On the other hand, the closed underground heat exchanger is installed by inserting two strands of geothermal coil pipes connected with U-bands to the bottom to perform underground heat exchange in the excavated geothermal drilling holes, and then grouting between the excavation wall and the geothermal coil pipes. It is fixed by filling with. The closed underground heat exchanger only functions to exchange heat retained by heat exchanged from the ground through the geothermal coil pipe to the ground without directly pumping and exposing the groundwater. The brine for heat exchange in the closed circulation pipe is always provided by the circulation pump. As it is circulated but not in direct contact with the groundwater, the groundwater pollution may not be greatly concerned as compared with the open underground heat exchanger.

In particular, due to low carbon green growth and soaring oil prices, the demand for geothermal energy will continue to increase according to the expanded supply of renewable energy. The trend is gradually strengthening. Concerns about groundwater contamination caused by geothermal systems are the same as those of general groundwater rigs, and the open underground underground heat exchanger, which has no choice but to come into contact with the groundwater in the rock aquifer, where the heat exchanged groundwater flows directly into the rig, There is a great need for devices and methods that can be replaced with heat exchangers. In addition, in the case of an open underground heat exchanger, a groundwater core pump is installed inside the geothermal digging hole to pump groundwater, and when the natural water level is particularly low, the energy saving effect is low due to the excessive driving power cost to pump the groundwater. There was also a losing issue. Moreover, the groundwater returned to the geothermal rig will erode the excavation wall as it flows down inside the geothermal rig, and the soils flowing with the groundwater coming from the crushed or rock aquifer will continue to be geothermally excavated over a long period of time. Accumulation occurred inside the ball, and eventually there was a management difficulty in performing a surging operation, which is a cleaning operation using compressed air.

In addition, when a plurality of geothermal drilling rigs are operated together, there is a variation in the amount of groundwater returned to each geothermal drilling rig due to the difference in the circulation water quantity. Finally, some geothermal drilling rigs cause the groundwater to overflow to the outside of the geothermal drilling rig. There is a problem that may cause the operation of the system. In addition, due to the water quality of groundwater itself, it may contain soil such as sand, and it contains many substances that can form scale in pipes and heat exchangers such as calcium and magnesium. There is a high problem that this is likely to occur.

In the case of closed underground heat exchangers, the brine circulating the heat exchanger and the circulating water pipe (in this case, brine uses clean fresh water added with antifreeze to prevent freezing in the winter, and inside the brine tube, the heat exchanger, and the geothermal excavator) It is a heat exchange medium that circulates inside the installed geothermal coil pipe.) Because it does not come in direct contact with the groundwater, the groundwater is less likely to be contaminated and the circulation head can be significantly lowered.Inside the system for the heat exchange of brine only by the circulation pump installed on the ground. It has the advantage of achieving a cycle of. The geothermal system composed of such a closed underground heat exchanger has a U-band vertical hermetic type, which is installed by inserting and installing a U-band geothermal coil tube into a geothermal excavation hole, and inserts an external circulation tube into the geothermal excavation hole first, and then inside The double pipe tube type formed by inserting the inner circulation tube and the energy pile type with geothermal coil tube installed inside the foundation pile are being developed and operated as representative types. On the other hand, the surface soil is excavated to a depth of about 2m, then the geothermal coil pipe is laid horizontally and buried, and the horizontally sealed type that constitutes the system is also included in the category of closed underground heat exchanger.

However, in the case of a U-band geothermal coil tube formed by thermally fusion-connecting a U-band at the end of two geothermal coil tubes, the geothermal coil tube is produced in a circular wound state and brought into the site to be inserted into the geothermal excavation hole. In this case, the U band part of the geothermal coil pipe is hit by the hollow wall of the geothermal drilling rig or the entire geothermal coil pipe is bent in a circular shape. do. In addition, due to the nature of the polyethylene pipe (PE) pipe is difficult to secure rigid straightness, like a steel pipe pipe, it is impossible to secure a compulsory insertion force, the insertion depth is generally installed by inserting a limit of 100 ~ 150m.

In addition, the actual depth of insertion had a problem that was difficult to confirm until the supervising supervisor visited the site. In addition, when the grouting injected to hold the geothermal coil pipe inside the geothermal digging hole and reduce the flow of empty space becomes poor, the surface of the geothermal coil pipe may be damaged by friction with the digging hole wall due to the long-term pulsation generated by the operation of the circulation pump. In case of damage, the leakage of circulating water caused high levels of groundwater contamination as well as serious damage to the geothermal system. In addition, because the depth of the facility is shallow, as a result, the heat transfer area of the underground heat exchanger installed in the individual geothermal excavation hole is not large.

As a result, the U-band vertical hermetic type requires a large amount of geothermal excavation holes and is a site for digging a large amount of geothermal excavation holes, compared to the geothermal excavation hole of the open type underground heat exchanger operated by excavating a high depth at the same heat transfer amount. The area also had to be secured. Due to the problem of securing the site area, in case of U-band vertical sealed type, geothermal coil pipe is installed in the inside of the foundation file or the geothermal coil pipe is excavated densely in the bottom part where the building is built before building. After installing and installing the underground heat exchanger, the pipes were connected to the total heat exchanger of the heat pump installed in the machine room. In the end, the U-band vertical hermetic geothermal facility, which has the advantage of convenient facility operation when the site area is narrow, had a problem in that the installation capacity could not be sufficiently installed.

In order to solve this problem, even though it is helpful to insert the geothermal coil pipe by using the steel pipe pipe, the outer peripheral surfaces of the steel pipe pipe and the geothermal coil pipe continuously friction during the extraction of the steel pipe pipe to the ground after the insertion is completed. It could not be utilized because there is a high possibility that a perforation may occur due to wear.

In addition, in the case of the U-band vertical sealed type, bentonite is injected into the grouting to prevent contamination, so if the geothermal coil pipe is broken and leaks, it is difficult to find the geothermal coil pipe, and the geothermal coil pipe is drawn out to remove and geothermal excavation. It was not possible to recycle the ball again. Of course, geothermal coil pipes are generally formed in the lower part of the building construction area, and numerous geothermal coil pipes are connected by horizontal pipes and finished by building floors. Sometimes it becomes a serious problem to close the coil pipe.

In addition, the U-band vertical sealed type is also excavated to the bottom of the rock line, and in order to prevent groundwater contamination due to the inflow of the upper contaminated groundwater according to the Attachment 1 of Rule 2 of the Groundwater Act and Groundwater Conservation, etc. In case of U-band vertical sealed type, which must form a large amount of geothermal excavation hole by installing a casing up to 1m deep and grouting with a thickness of 5 centimeters along the outer periphery of the casing In addition, a large amount of facility cost for the facility was to be additionally input, so the economy was inevitably lose competitiveness compared to other facility methods.

On the other hand, the same purpose may be achieved through the installation of a plurality of geothermal coil pipe inside a single geothermal excavation hole, but in this case, the U band is located at the bottom of the geothermal excavation hole while being located at the tip of the geothermal coil pipe To overlap with each other there is a problem that the diameter of the geothermal excavation hole must be required to insert it into the geothermal excavation hole. In addition, as the geothermal coil tube increases in size due to the minimum radius of curvature required to form the U-band, the radius of curvature of the U-band forming becomes more proportionately, resulting in an excessively large geothermal excavation hole. When a problem occurred and the installation of two lines of geothermal coil pipes more than three lines or four lines, due to this problem, the practical application was bound to be a problem.

The present invention is a closed underground heat exchanger device that allows underground heat to be used without groundwater intake. The U-band vertical hermetic geothermal coil pipe, which had to be constructed at a depth of about 150 m, was obstructed to a high depth of about 500 m. The primary challenge is to maximize the heat transfer area per underground heat exchanger and to increase the use efficiency of the facility's site.

In addition, the purpose of the present invention is to develop a technology to remove and remove the ground and rehabilitation facilities when the geothermal coil pipe of the underground heat exchanger, such as leakage.

The present invention is a closed underground heat exchanger device that can use underground heat without taking ground water, and in a high depth vertically sealed underground heat exchanger,

Geothermal rigs drilled deep into the rock to use geothermal; Anchors (anchor) connected to the bottom of the geothermal excavation hole is installed by a rope; Geothermal coil pipe inserted into the geothermal excavation hole; By connecting the anchor and the bottom of the geothermal coil pipe and pulling it, the geothermal coil pipe is characterized by consisting of a rope configured to be forced into the geothermal excavation hole.

In addition, as a method for constructing a high depth vertical hermetic underground heat exchanger,

Excavating from the ground surface to a predetermined depth to form a geothermal excavation hole; Grouting the casing by inserting the casing into a large diameter hole; Installing a rope connected to the ground of the geothermal excavation hole; Inserting and installing a geothermal coiled pipe connecting the rope into the geothermal excavation hole; Removing the rope by removing the inside of the geothermal excavation hole; Filling sand or grouting material in the geothermal excavation hole; Geothermal coil pipe is characterized in that the process consisting of coupling to the heat exchanger connection pipe installed on the ground.

By inserting U-band vertical hermetic geothermal coil pipe inside the high-depth geothermal excavation hole of 200 ~ 500m, it is possible to construct underground heat exchanger. The efficiency of utilizing geothermal energy, renewable energy, can be increased. In addition, in the case of the conventional U-band vertically sealed underground heat exchanger, since a large amount of geothermal excavation holes must be installed, work is not possible under the existing building floor, and if there is no spare site, it is impossible to review the facility itself, but it is possible to enter excavation equipment. If there is an existing building, the high-depth U-band vertical hermetic underground heat exchanger facility is possible.

Similarly, if a geothermal system is installed in a horticulture vinyl house by applying a conventional U-band vertically sealed underground heat exchanger, it is also necessary to dismantle the existing vinyl house and excavate a large amount of geothermal excavation holes and then rebuild the vinyl house. However, this high-depth U-band vertical hermetic type can be installed in the space between the vinyl house and the vinyl house to develop a geothermal excavation hole so that the underground heat exchanger can be installed to easily expand the application. It became effective.

In addition, the conventional U-band vertical hermetic type has a large amount of geothermal excavation holes, so a large amount of facility costs have to be put in for groundwater pollution prevention facilities, but in the case of high-depth U-band vertical hermetic type, the number of geothermal digging holes can be greatly reduced. As a result, the reduction of groundwater pollution prevention facility costs is also great.

In addition, in the case of high-depth U-band vertical hermetic type, sand can be filled into the underground heat exchanger instead of grouting by bentonite or cement injection. It can be removed by drawing, which has a dramatic effect on maintenance and maintenance.

In addition, the number of geothermal excavation hole is small and the underground heat exchanger can be installed on the outside of the site, so that individual management is possible, so that it is possible to check and manage the efficiency of each underground heat exchanger.

In addition, by connecting a linear geothermal coiled tube with a header device without using a U-band, it is possible to construct an underground heat exchanger by inserting a number of vertically sealed geothermal coiled tubes into a geothermal excavation hole. Since it can be enlarged has an effect that can greatly reduce the amount of excavation of geothermal excavation hole. As a result, it is possible to increase the utility of geothermal utilization of renewable energy while greatly improving the site utilization.

1 is a cross-sectional view showing the installation of the underground heat exchanger installed by the present invention.

2 is a cross-sectional view of an underground heat exchanger according to the present invention.

Figure 3 is a cross-sectional view showing a rope release function and rope clamp functional state according to the present invention.

Figure 4 is a cross-sectional view showing a state in which the rope is separated from the rope clamp according to the present invention

5 is a cross-sectional view showing an anchor according to the present invention.

Figure 6 is a perspective view of a rope breaker according to the present invention.

Figure 7 is a cross-sectional view showing the insertion of the double tube tube type according to the present invention.

Fig. 8 is a cross-sectional view showing that the anchor according to the present invention is installed as an anchor rod to constitute a cured product.

9 is a cross-sectional view showing the anchor operating state of the present invention.

Figure 10 is a perspective view of the guide coupling state of the present invention.

11 is a cross-sectional view showing a coupling state of the header device and the U-band and the geothermal coil pipe of the present invention.

12 is a front view of a geothermal coil pipe header device according to the present invention.

Figure 13 is a perspective view of the collecting tube applied to the geothermal coil tube header device according to the present invention.

14 is a cross-sectional view of the collecting tube applied to the geothermal coil tube header device according to the present invention.

15 is a plan view of another example applied to the geothermal coil pipe header device according to the present invention.

Figure 16 is a perspective view of the collecting tube fixture applied to the geothermal coil tube header device according to the present invention.

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

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

The following terms are terms set in consideration of functions in the present invention, which may vary depending on the intention or custom of the producer, and their definitions should be made based on the contents throughout the specification.

Figure 2 is formed by excavating the geothermal excavation hole (1) below the ground surface 40, and then installed the geothermal coil pipe 20 to the lower excavation hole inside the geothermal excavation hole (1) and connected to the ground brine pipe ( 9 is a cross-sectional view showing an underground heat exchanger configured by connecting a heat pump (7) to a heat exchanger (7) coupled with a heat pump (not shown). High-depth geothermal coil pipe 20 is generally composed of 200 ~ 500 m depth and the diameter is excavated to 100 ~ 200 mm. The space between the geothermal excavation hole 1 and the geothermal coil pipe 20 is filled with sand or filled with a filler 10 composed of bentonite or cement solution. When the sand is used as the filler 10, there is no curing effect and has the advantage of drawing the geothermal coil pipe 20 in the future without inhibiting the flow of the groundwater aquifer.

The geothermal excavation hole (1) also excavates to the bottom of the rock bed so that the contaminated groundwater in the upper layer can contaminate the clean rock groundwater that is formed below the rock bed. 4) Insert and grout (3) to form a cement solution with a thickness of 5 cm or more. Of course, after completion of the excavation to the planned depth, the secondary grouting (3) can also be performed, or the excavation is carried out with a large diameter below the rock line first, and then the casing (4) is installed and the grouting (3) is performed. After the section is cured, the geothermal excavation hole (1) may be formed by excavating to a second planned depth. Such a process should be understood as an essential process regardless of the order and should be understood as the scope of the present invention.

Of course, if the facility is installed to improve the existing geothermal excavation hole (1), the grouting (3) process may be omitted, and additional excavation may be made to form a different excavation depth.

After the geothermal excavation hole (1) is completed, pass the end of the rope 40, or the node rope 48 to the roller (55) installed in the anchor (anchor) and then hold the end from the ground and hold two ropes The anchor 50 attached to the 40 is installed down to the geothermal excavation hole (1). Anchor 50 is divided into a large part of the roller 55, the fixed base 52, and the latch 51, the rope breaker 53. The roller 55 is rotatable over the rope 4 and is combined with the fixing roller 52 and the conventional roller pin 46c to facilitate rotation without being separated.

The catch 51 is provided with two or more blades facing each other and is composed of one or two or more stages. Of course, three blades can be installed by dividing the circumference length evenly. The anchor 50 is made of a metal material having a large weight, so that it can be easily inserted into the geothermal excavation hole (1) and the latch 51 is a clearance gap with a roller pin (46b) to the holder (52) There is no obstacle in the movement of being folded or spread outward to the center of the fixing table 52. Of course, for the sake of clarity, the spring 63b is installed between the clasp 51 and the clasp 51 or the clasp 51 ) And the mounting table 52 can also be configured.

On the other hand, the fixing unit 52, the fixing unit 52 and the rope detacher 53 is integrally fixed and installed. The rope breaker 53 constituted the inclined portion 59 and the blade portion 54 at the end thereof. In the central part of the rope remover 53, a rope groove 42b was processed so that the rope 40 penetrated and wound around the roller 55, thereby inserting the rope 40 into the inside. Blade portion 54 is composed of two blades (77a), (77b) and beneath the inclined portion (59) is configured.

In addition, among the ropes 40 wound around the roller 55 of the anchor 50 and lowered into the geothermal excavation hole 1, the rope protection pipe 47 is installed on the rope 40 opposite to the rope breaker 53. . The rope protection tube 47 may be understood to utilize a conventional wire protection tube or nylon tube. For convenience of the work to be fitted to the rope 40, one side of the rope protection pipe 47 may be cut in the longitudinal direction to install the rope 40 through the cut portion. Of course, the rope 40 is used to select the material and thickness according to the site conditions, such as a rope made of wire rope or synthetic resin.

As described above, the anchor 50 is installed by winding the rope 40 into the geothermal excavation hole 1 as described above. At this time, the fastener 51 installed in the anchor 50 has a structure that can be freely squeezed inside the holder 52 so that the anchor 50 naturally slides into the geothermal excavation hole 1 due to its own weight. As it descends, it will settle to the floor. It is possible to check whether the length of the rope 40 introduced from the ground and the bottom of the geothermal excavation hole 1 by the loading load on the rope 40 is reached, and if necessary, an underwater camera (not shown) is put together or After the input, it can be checked through the shooting and the monitor (not shown) screen installed on the ground.

When the anchor 50, which is seated on the floor, pulls the rope 40 in two lines repeatedly, the latch 51 is formed with its own center of gravity outward so that it extends outward of the fixing table 52. Of course, when the spring 63b is installed, the clarity of operation can be ensured. The latch 51 is sharply formed at its end, as shown in FIG. 4, so as to penetrate into the excavation wall surface of the geothermal excavation hole 1, and cannot move beyond the angle of the locking jaw 99, even when pulled from the ground. Will be maintained. Such an effect is that the hollow wall excavation surface shape of the geothermal excavation hole (1) is not as smooth as the glass surface, but a rough excavation surface is formed due to the impact impact during the excavation process, so that the locking effect of the latch 51 may be high.

When the anchor 50 is inserted into the geothermal excavation hole 1, the catch 51 is unfolded at the moment, so that the rope 40 is pulled on the rope 40 with the outer periphery of the catch 51 to prevent an obstacle from occurring. ) After installing the protective tube (not shown) connected to the installation or binding the band band (not shown) to the outer periphery of the latch (51) and then pulling the cutting blade (not shown) to the rope 40 (not shown) When the anchor 50 is reached at the bottom of the geothermal excavation hole (1) by operating by pulling the rope 40 from the ground to remove the protective canister (not shown) or to cut off the band band (not shown) ) Can be expanded.

Of course, after installing the anchor rod 97, which formed the protrusions 98, so as not to easily fall off when pulling the rope 40, the geothermal excavation hole (1) after the installation of the cemented carbide through the injection hose (not shown), etc. Or by using a chemical material such as cement or epoxy to the top of the anchor (50) to make a hardened body 100, and then fixed and operated to obtain the same function can be obtained all the acts also the installation of the anchor (50) It is natural that it should be regarded as a scope.

When the installation of the anchor 50 is completed, one end of the rope 40 is fixed to the rope clamp 43 configured at the lower end of the header device 60 fixed to the upper portion of the U band 21 of the geothermal coil pipe 20. Rope clamp 43 configured in the header device 60 is composed of a blade processed into two thick steel plate and the teeth 46 inclined inward are uniformly processed on both blades. This is similar to the principle that the saw blade-shaped protrusion formed in the automatic belt does not push the belt out.

Of course, in order to further increase the fixing force of the teeth 46, the corrugated node rope 48 may be attached and operated by binding to the joint 49.

Clamp inclined surface 45 is formed below the saw blade 46 and was coupled to the header device 60 using a roller pin 46a to move two blades of the rope clamp 43.

The central portion of the header device 60 is also configured with a rope groove 42a to be inserted into the rope 40 of the extra portion passed through the rope clamp 43. The header device 60 is composed of two symmetrical plate shapes, and functions to couple together while being fixed together with the geothermal coil pipe 20 and the U band 21. The upper end of the header device 60 is formed long. By allowing the geothermal coil pipe 20 to be bitten by 20 cm or more, the U-band 21 is applied to the geothermal coil pipe by preventing the pull force pulled by the header device 60 from being applied directly to the heat-bonded U-band 21. There was no accident detaching from (20).

In addition, the header device 60 is composed of a metal material to have a sufficient weight and its lower end is conical so that there is no jamming phenomenon when inserted into the geothermal excavation hole (1). On the other hand, the header device 60 consisting of two plates were to use a plurality of coupling bolts 88 and the portion to be bonded to the geothermal coil pipe 20 to form a bite wrinkles 82 so that a solid bond is formed so that there is no slipping It was.

After fixing the rope 40 to the header device 60 filled in the U-band 21 of the geothermal coil pipe 20, the other end of the rope 40 is integrated with a roller and a motor to rotate the roller. The winch 91 is rotated by fixing to the configured winch 91. The winch 91 is equipped with an inverter panel (not shown) to adjust the rpm (rpm) was able to adjust the insertion speed of the geothermal coil pipe 20 is inserted. When the coil winch roller 130 is operated while rotating the rope winch 91, the force pulling the rope 40 from the ground is directly passed through the roller 55 of the anchor 50 and coupled with the geothermal coil pipe 20. The geothermal coil pipe 20 is pulled through the device 60 so that the geothermal coil pipe 20 is inserted into the geothermal drilling hole 1. At this time, if the work is carried out to some extent, due to the weight of the geothermal coil pipe 20, the phenomenon that the geothermal coil pipe 20 is rapidly introduced into the geothermal drilling hole 1 regardless of the number of revolutions of the winch 91 The winch 91 and the coiled tube roller 130 may be generated while the operation is performed while controlling the mutual speed. Of course, at this time, in consideration of the load of the geothermal coil pipe 20, a separate wire rope (not shown) is bound to the lower end of the geothermal coil pipe 20, and the end thereof is fixed to a wire rope winch (not shown) to be wound or operated. It may be additionally installed to assist the insertion work of the geothermal coil pipe (20) to loosen and in this case should be appropriately applied depending on site conditions.

The geothermal coil pipe 20 to be inserted usually represents two strands of

geothermal coil pipes

22a and 22b connected to the U band 21, but inserts a large diameter geothermal coil pipe 20b as shown in FIG. After that, it can be applied to a double tube tubular vertical hermetic underground heat exchanger facility having an internal circulation pipe (not shown) inside. In addition, in order to reduce the circulation head through the reduction of frictional resistance and consequently the driving power ratio, the diameter of the two strands of the geothermal coil pipe 20 is configured differently with the U band 21 as the boundary. I could do it.

In addition, in the process of inserting the geothermal coil tube 20 into the geothermal excavation hole (1), if the failure occurs due to sand or slime introduced from the wall or vein of the geothermal excavation hole (1) geothermal coil tube (20) In addition, the compressed air injection hose 150 may be installed to inject high-pressure compressed air and discharge the sand or slime to the outside.

When the geothermal coil tube 20 is inserted into the geothermal excavation hole (1) is completed, the inclined portion 59 of the rope breaker 53 is dug into the clamp inclined surface 45 of the rope clamp 43 first, the blade The two

blades

77a and 77b of the portion 54 cut the band 44 fixed so that the two blades of the rope clamp 43 do not open. When the band 44 is cut, the two blades of the rope clamp 43 are opened to both sides by the elasticity of the spring 63a and the entry force of the inclined portion 59 of the rope breaker 53. As a result, the rope 40 fixed by the teeth 46 processed on the two blades of the rope clamp 43 is released from the bond between the two blades of the rope clamp 43 and pulled out from the ground. All are withdrawn.

At this time, the rope 40 is drawn out of the rope protection tube 47, all out of the geothermal coil pipe 20 due to the friction of the geothermal coil pipe 20 is not fundamentally generated and is safely kept as well as geothermal It is also possible to solve the problem that is difficult to pull out because it is sandwiched between the excavation hole (1) and the geothermal coil pipe (20). When all the withdrawal of the rope 40 is finished, the rope protection pipe 47 is also withdrawn to remove all possible outside. Of course, the method of staying inside the geothermal excavation hole (1) without performing the withdrawal of the rope 40 can also be operated, and by connecting the rope 40 to an underwater winch (not shown) installed in the anchor 50 at all. It is also possible to operate through the electrical operation on the ground to insert the geothermal coil pipe 20, in which case the process of pulling one end of the rope 40 from the ground may be omitted. Naturally, the configuration of the rope remover 53 and the rope clamp 43, which are installed to pull out the rope 40, should be understood as an embodiment, and for the geothermal coil pipe 20 insertion using the rope 40. Various methods may be applied but all should be considered as the scope of the present invention.

On the other hand, as shown in Figure 4 in order to securely hold the geothermal coiled pipe 20 to the geothermal excavation hole (1) lower to secure the rope to remove the paired to match the teeth 46 formed on the inner side of the two blades of the rope clamp (43) ( A fixed tooth 58 is formed on the inclined portion 59 of 53 to allow the two components to be engaged with each other when they are in contact with each other so that the function can be secured.

On the other hand, the geothermal coil pipe 20 is inserted into the geothermal excavation hole (1) is the interior of the geothermal excavation hole (1) inside the groundwater is usually filled with a depth of 10 ~ 20m from the ground surface When the depth of the geothermal excavation hole (1) reaches 500 m, the internal water pressure reaches 50 kg / cm2. As a result, the geothermal coil pipe (20) is recessed inward, thereby failing to function. Even if you apply hydraulic pressure after filling the inside with brine, the crushed area is not restored to its original state, so the circulation diameter is greatly narrowed and occluded, which can cause severe circulation disorder. In order to solve this problem, all geothermal coil pipes 20 before the geothermal excavation hole (1) was inserted to be filled through the supplemental water pipe 161 using the supplemental water pump 161.

During winter construction, it can be used by changing to antifreeze to prevent freezing of the supplemented water. Of course, the supplemental water may also be inserted and appended while filling the geothermal excavation hole (1) during insertion, and this act should also be understood as a process of supplementation. Through this process, even if the pressure inside the geothermal coil pipe 20 and the geothermal excavation hole 1 is deep, the pressure can be similarly matched, so that the geothermal coil pipe 20 is blocked or damaged by water pressure. It is possible to insert without installation.

When the geothermal coil pipe 20 is installed inside the geothermal excavation hole (1), the guide (70) is installed so that the geothermal coil pipe 20 is located at the central portion of the geothermal excavation hole (1). 70 is provided with an open line 120 so that one side can be opened, and one side is configured to be connected to the yaw groove 71 formed in the center part after covering the geothermal coil pipe 20 as if it is overlaid. Tie band 72 for tying the wires or pipes together to make it possible to be fixed by tightening strongly.

When the installation of the geothermal coil pipe 20 in the geothermal excavation hole (1) is completed, the filling material (10) filled with sand or bentonite, or cement solution was injected into the interior. When the filler 10 is sand, when the geothermal coil pipe 20 installed in the underground heat exchanger 110 is blocked or leaks, sand is removed by using high pressure compressed air and the geothermal coil pipe 20 is external. Can be removed with the advantage that rehabilitation installation is possible. If you explode after installing a small explosive to the ground inside the geothermal coil pipe (20) without the need for a separate compressed air injection hose, the U-band (21) of the geothermal coil pipe (20) falls off the ground geothermal nose By directly injecting compressed air into the coherent (20) to reach the bottom it is possible to easily remove the sand and slime inside the geothermal excavation (1). Of course, the same effect can be obtained even when the opening is secured by cutting the U-band 21 by inserting a very small cutting robot (not shown), and all of them should be understood to form an opening in the lower portion of the geothermal coil pipe 20. something to do.

When the filling of the filling material 10 is completed, the sealed upper protection hole suggested by the groundwater method is installed to prevent surface water or pollutants from entering the surface of the ground. Of course, when the filler 10 is to be hardened using a cement solution, such as sand, it is possible to omit the sealed upper protection hole.

On the other hand, in the installation method of the high depth vertical hermetic underground heat exchanger,

Digging the geothermal excavation hole (1) to the bottom of the rock to prevent contamination by using a large diameter drilling bit; A step of inserting and installing the casing 4 into the large-diameter geothermal excavation hole 1 and then performing grouting 3; Digging the geothermal excavation hole (1) to a predetermined depth by using a small diameter drilling bit; A step of installing and fixing the anchor 50 connected to the bottom of the geothermal excavation hole 1 excavated with a small diameter by connecting the rope 40; Inserting and installing the geothermal coil pipe 20 to which the rope 40 is connected into the geothermal excavation hole 1; Extracting and removing the rope 40 from the geothermal excavation hole 1; Filling the filler 10 into the geothermal excavation hole 1; The geothermal coil pipe 20 is characterized by consisting of a step of coupling to the connecting pipe of the heat exchanger (7) installed on the ground.

In addition, the method comprising the step of filling the replenishment water in the geothermal coil pipe (20), using a large diameter drilling bit to excavate the geothermal excavation hole (1) to the bottom of the rock to prevent contamination; A step of inserting and installing the casing 4 into the large-diameter geothermal excavation hole 1 and then performing grouting 3; Digging the geothermal excavation hole (1) to a predetermined depth by using a small diameter drilling bit; A step of installing and fixing the anchor 50 connected to the bottom of the geothermal excavation hole 1 excavated with a small diameter by connecting the rope 40; Replenishing the replenishment water in the geothermal coil pipe (20); Inserting and installing the geothermal coil pipe 20 to which the rope 40 is connected into the geothermal excavation hole 1; Extracting and removing the rope 40 from the geothermal excavation hole 1; Filling the filler 10 into the geothermal excavation hole 1; The geothermal coil pipe 20 is characterized by consisting of a step of coupling to the connecting pipe of the heat exchanger (7) installed on the ground.

In addition, the method in the case of filling and filling the filler 10 without removing the rope 40, using a large diameter drilling bit to excavate the geothermal excavation hole (1) down to the rock line to prevent contamination; A step of inserting and installing the casing 4 into the large-diameter geothermal excavation hole 1 and then performing grouting 3; Digging the geothermal excavation hole (1) to a predetermined depth by using a small diameter drilling bit; A step of installing and fixing the anchor 50 connected to the bottom of the geothermal excavation hole 1 excavated with a small diameter by connecting the rope 40; Inserting and installing the geothermal coil pipe 20 to which the rope 40 is connected into the geothermal excavation hole 1; Filling the filler 10 into the geothermal excavation hole 1; The geothermal coil pipe 20 is characterized by consisting of a step of coupling to the connecting pipe of the heat exchanger (7) installed on the ground.

In addition, as a method of applying the present invention for improving the existing geothermal excavation hole (1),

Further drilling the geothermal excavation hole (1) to a predetermined depth by using the excavation bit; Installing and fixing the anchors 50 connected to the bottom of the excavated geothermal excavation hole 1 to which the rope 40 is connected; Inserting and installing the geothermal coil pipe 20 to which the rope 40 is connected into the geothermal excavation hole 1; Filling the filler 10 into the geothermal excavation hole 1; The geothermal coil pipe 20 is characterized by consisting of a step of coupling to the connecting pipe of the heat exchanger (7) installed on the ground.

In addition, the method of rehabilitation by applying the present invention for drawing and reinstallation due to leakage of the geothermal coil pipe 20 inside the existing geothermal excavation hole (1),

Forming an opening in a lower portion of the geothermal coil pipe (20); Injecting high-pressure compressed air or compressed water into the geothermal coil pipe 20 to discharge sand to the outside; Removing the geothermal coil pipe (20) by drawing it to the outside and emptying the facilities installed inside the geothermal excavation hole (1); Installing and fixing the anchor 50 connected to the bottom of the geothermal excavation hole 1 to which the rope 40 is connected; Replenishing the replenishment water in the geothermal coil pipe (20); Inserting and installing the geothermal coil pipe 20 to which the rope 40 is connected into the geothermal excavation hole 1; Extracting and removing the rope 40 from the geothermal excavation hole 1; Filling the filler 10 into the geothermal excavation hole 1; The geothermal coil pipe 20 is characterized by consisting of a step of coupling to the connecting pipe of the heat exchanger (7) installed on the ground.

Reference numeral 8 is a refrigerant pipe of the heat pump, and 80 is an earth surface.

So far, the U-shaped geothermal coil pipe 20 has been described as the header device 60. Hereinafter, the geothermal coil pipe header device according to the present invention configured to circulate the linear geothermal coil pipe will be described.

As shown in FIG. 12, the geothermal coil pipe header device according to the present invention is inserted into a geothermal excavation hole 1 formed in the ground in a state in which two or more geothermal coil pipes 20 through which a heat exchange medium flows are assembled into one. Thus, the heat exchange medium has a collection tube 200 to return to the ground heat exchanger after heat exchange with the geothermal heat.

13 and 14, the collection pipe 200 is the collection pipe body 210, the collection portion 220 formed in the interior of the collection pipe body 210, the collection pipe body 220 while being opened toward one side to the collection pipe body 210 It is formed to communicate with the geothermal coil pipe 20 is composed of a plurality of pipe joints 230, the pipe joint.

The collection tube body 210 is formed in a shape that can be smoothly inserted into the geothermal excavation hole (1), for example, a circular cross section, and a circular to streamlined sharp portion 211 is formed at the bottom of the installation state. The sharp part 211 may be connected to the rope 320 to be described later.

A stopper 212 is formed in the collecting tube body 210 so that the geothermal coil tube 20 can be inserted into the tube fitting portion 230 of the collecting tube body 210 at a predetermined depth. The stopper 212 is not limited to the shape of the jaw formed integrally with the collecting tube body 210, and all of them may be restricted to the insertion of the geothermal coil tube 20.

The collecting part 220 is, for example, a space formed inside the collecting tube body 210, and a plurality of pipe fittings 230 are formed in communication so that the heat exchange medium introduced by the geothermal coil pipe 20 has different geothermal heat exchange. Circulation through the tube (20). That is, two geothermal coil tubes 10 may be configured in one set for circulation of the heat exchange medium, and thus, two pipe joints 230 may be configured in one set. The pipe joint 230 may be configured as four, as shown in Figure 3, in this case, all four pipe joints 230 may be in communication with one catcher 220, otherwise the catcher 220 is 2 Two pipe joints 230 may be formed in communication with the water collecting units 220 partitioned into two spaces.

When the plurality of pipe joints 230 constitute a plurality of sets, the pipe sets 230 of different sets may have different diameters. Therefore, since the supply amount of the heat exchange medium and the heat exchange efficiency with the ground water will vary depending on the diameter of the pipe fitting 230, a pipe fitting 230 having a diameter suitable for the construction conditions or the load used may be selected and used.

That is, as shown in FIG. 15, only two pipe joints 230 may be formed in the collecting pipe 200.

The geothermal coil pipe 20 is tightly fixed to the pipe joint 230 by heat welding.

In addition, the pipe joint 230 may be composed of one large diameter supply port and two small diameter return port or two small diameter supply port and one large diameter return port to secure the maximum circulation flow rate within the limited excavation hole diameter. .

If some of the pipe joints 230 are not used, some of the pipe joints 230 are not used so that the groundwater flows through the unused pipe joints 230 so as not to exchange heat with the heat exchange medium. At the inlet of the cap 240 is coupled. Cap 240 is combined with all the ways to prevent the groundwater flowing into the water collecting unit 220 and the heat exchange medium outflow, and with the packing so that the geothermal coil pipe 20 can be easily used later It can be screwed in.

Geothermal coil pipe 20 may be made of a high density polyethylene (PE) material, heat wire that is supplied with power so that the geothermal coil pipe 20 of such material can be coupled to the assembly pipe 200 without a separate welding machine ( 250) may be applied. Since the heating wire 250 is for the coupling of the geothermal coil pipe 20, the connector is provided with a detachable power line. According to the hot wire 250, when a power source is connected to the hot wire 250, a high temperature heat is generated from the hot wire 25, and the geothermal coil pipe 10 is fixed to the collecting pipe 20 by this heat.

Collecting tube 200 is to be installed in the water of the groundwater is composed of a material that is not corroded by water.

The assembly tube 200 and the geothermal coil tube 20 assembly are inserted and used in the geothermal excavation hole (1), may be inserted without additional equipment, for example, in the geothermal excavation hole (1) of 300 ~ 500m high depth A separate assembly pipe installation port 300 may be applied to insert the installation.

Collection tube 200 may be made of a variety of materials, the weight may be applied to be easily inserted into the geothermal excavation hole (1). The weight body may be used to be detachably connected to the collection pipe 200 through a ring, fasteners and the like.

As shown in FIG. 16, the collecting pipe installation unit 300 may include a pulley 310 and a rope 320 (eg, a rope in a double row).

The rope 320 pulls the assembly tube 200 having a plurality of geothermal coil tubes 20 fixed from the ground into the geothermal excavation hole 1 to insert the geothermal coil tube 20 to a high depth of 300 to 500 m. It is possible to install, and to maintain the set pipe 200 to a certain height and to freely adjust the height of the set pipe 200, one side is connected to the collection pipe 200 and the other side is connected to the ground winding machine and the like.

The pulley 310 supports the rope 320 so that the collecting pipe 200 to which the geothermal coil pipe 20 is coupled can be smoothly lowered when the wire 320 is wound up by installing a winding machine (not shown) on the ground. It is a general term for all the configurations that change direction.

The pulley 310 may be inserted into the box 330 and used.

The box 330 is a rope insertion hole 331 and the outlet 332 is formed to be open toward the top and the space is formed inside.

The rope insertion hole 331 and the outlet 332 may pass through the rope 320 but a brush or the like may be installed to prevent foreign substances such as sand from penetrating.

At least one of the rope outlet 332 and the rope insertion hole 331 of the box 330 in which the pulley 310 is built is formed with an induction part 350 (see FIG. 12) having a light beam narrowing structure having a wider cross-sectional area toward an upper portion thereof. .

The rope 320 penetrated and installed down the center of the induction part 350 is pulled up by the force of a winding machine (not shown) installed on the ground and slowly wound around the winding machine, and the rope 32 is pulled through the pulley 31. The collection pipe 200 is pulled down in the changed direction. At this time, when the geothermal coil pipe 20 is inserted into the geothermal excavation hole (1) at a high speed, a large amount of the rope (320) comes down as if it is wound toward the box (330), and the rope (320) is tangled. Even pulling from the ground may loosen and make it difficult to pull normally. In this case, the induction part 350 receives the rope 320 falling down in sequence and functions to smoothly release the rope 320 according to the force pulled from the ground through a narrow outlet.

The anchor 400 may be applied to fix the collection pipe 200 in the geothermal excavation hole (1).

Anchor 400 is detachably connected to the bottom of the box 330 through a pin or the like is inserted into the geothermal excavation hole (1) and fixed to the assembly tube 200 does not move, the folding anchor wing is provided Consisting of, when installed, the anchor wings are folded and do not interfere with the geothermal excavation hole (1) after the installation is completed, the anchor wings can be unfolded and fixed in the geothermal excavation hole (1).

When the geothermal coil pipe 20 is constructed, the geothermal coil pipe 20 is connected to the pipe joint 230 of the collecting pipe 200. The geothermal coil pipe 20 is composed of two sets for circulation of the heat exchange medium, and thus, for example, two geothermal coil pipes 20 are thermally welded to two pipe joints 230 of the collecting pipe 200. Secure with a back.

When the connection between the geothermal coil tube 20 and the collecting tube 200 is completed, the assembly tube 200 and the geothermal coil tube 20 assembly are inserted into the geothermal excavation hole 1, and the rope 320 is released to release the assembly. Insert into ball (1). When the anchor 400 of the assembly touches the bottom of the geothermal excavation hole 1, the anchor 400 is fixed to complete the installation of the assembly.

The heat exchange medium circulates the ground heat exchanger and the ground through the geothermal coil pipe 20, and heat exchange between the heat exchange medium and the geothermal heat is performed in this process. That is, the heat exchange medium circulates through the geothermal coil tube 20 (inlet side)-the collecting section 220 of the collecting tube 200-the geothermal coil tube 20 (outflow side).

One line flow path is formed and used by two geothermal coil pipes 20, and when the geothermal coil pipe 20 is required to be added, the cap 240 is removed and two pipe joints 230 are provided. The geothermal coil pipe 20 is connected to form another flow path. That is, two lines of geothermal heat exchange passages are made in one drilling hole and one header device.

The assembly pipe fixture 300 and the anchor 400 described in the geothermal coil pipe header device may be the same as the rope 40 and the anchor 50 described above.

On the other hand, the present invention may be variously modified and may take various forms in applying the above configuration.

And, it is to be understood that the invention is not limited to the specific forms referred to in the above description, but rather includes all modifications, equivalents, and substitutions within the spirit and scope of the invention as defined by the appended claims. It should be understood to do.

Claims

Collecting tube body 210, formed in the interior of the collecting tube body and the heat collecting medium 220, the heat exchange medium is collected, the open side toward the collecting tube body is formed so as to communicate with the water collecting portion and a plurality of heat exchange medium flowing therein Geothermal coil pipe header device, characterized in that consisting of a collection pipe (200) comprising a plurality of pipe joints 230, the pipe joint.
The method of claim 1, wherein the box is formed in the space 330, the pulley 310 is installed in the box and the winding wound around the pulley one side is connected to the collection pipe and the other side is connected to the ground winding machine to the winding machine By the guide tube to the bottom side of the excavation hole by the geothermal coil tube header device comprising a rope (320) for adjusting the depth of the collecting tube.
The geothermal coil pipe header device according to claim 2, further comprising an anchor (400) connected to the box and fixing the collection pipe to the excavation hole.
The geothermal coil pipe header device according to any one of claims 1 to 3, wherein a hot wire (250) is provided at the pipe joint formed in the collection pipe.
The geothermal coil pipe header according to any one of claims 1 to 3, wherein at least one of the rope outlet and the rope insertion hole of the box is provided with an induction part 350 having a light beam narrowing structure having a wide cross-sectional area toward an upper portion thereof. Device.
The geothermal coil pipe header device according to claim 1, wherein a cap (240) is detachably coupled to the inlet of the pipe joint and tightly seals the pipe joint.
The geothermal coil tube header device according to claim 1, wherein the pipe joint is composed of one large diameter supply port and two small diameter return ports or two small diameter supply ports and one large diameter return ports.
The geothermal coil tube header device of claim 1, further comprising a weight body detachably coupled to the collecting tube to facilitate insertion of the collecting tube.
Geothermal excavation hole (1) excavated to the bottom of the rock to use geothermal;

An anchor 50 connected to the rope 40 under the geothermal excavation hole 1;

Geothermal coil pipe 20 is inserted into the geothermal excavation hole (1); By connecting the anchor 50 and the bottom of the geothermal coil pipe 20 and pulling it, the geothermal coil pipe 20 is characterized by consisting of a rope 40 configured to be forced to be inserted into the geothermal excavation hole (1) Vertically sealed underground heat exchanger.
The method according to claim 9,

The anchor 50 is a high-depth vertically sealed underground heat exchanger, characterized in that the roller 55 is configured at the upper end of the fixing base 52 and the latch 51 is formed at the lower end thereof.
The method according to claim 9,

The anchor 50 is a high depth vertical hermetic underground heat exchanger, characterized in that the rope breaker (53) is configured.
The method according to claim 9,

The anchor 50 is installed under the geothermal excavation hole (1) after the anchor rod (97) by using a cemented carbide cement or cement, or epoxy chemicals such as to the top of the anchor rod (97) hardened body ( High depth vertical hermetic underground heat exchanger, characterized in that 100) made and fixed.
The method according to claim 9,

Geothermal coil pipe 20 is a high-depth vertically sealed underground heat exchanger, characterized in that consisting of two lines by fusion of the U-band at the bottom.
The method according to claim 13,

Geothermal coil pipe 20 is a high-depth vertical hermetic underground heat exchanger, characterized in that the diameter of each consisting of two different lines.
The method according to claim 9,

The geothermal coil tube 20 is a high-depth vertical hermetic underground heat exchanger, characterized in that consisting of a large diameter and consisting of a double tube tube type inside the inner circulation pipe.
The method according to claim 9,

The geothermal coil pipe 20 is formed in a U-shape high depth vertically sealed underground heat exchanger, characterized in that installed by the header device (60).
The method according to claim 16,

The header device 60 is a high depth vertical hermetic underground heat exchanger, characterized in that the rope clamp 43 is configured.
The method according to claim 9,

The geothermal coil tube 20 is filled with supplemental water in the high depth vertically sealed underground heat exchanger, characterized in that inserted into the geothermal excavation hole (1).
The method according to claim 9,

High depth vertically sealed underground heat exchanger, characterized in that the rope protection tube 47 is installed on the outer periphery of the rope (40).
The method according to claim 9,

The rope 40 is a high depth vertical hermetic underground heat exchanger, characterized in that configured to be wound by installing a winch.
The method according to claim 9,

The geothermal coil tube 20 is formed in a straight line, high depth vertically sealed underground heat exchanger, characterized in that installed by the geothermal coil tube header device according to claim 1.
Digging the geothermal excavation hole (1) to the bottom of the rock to prevent contamination by using a large diameter drilling bit; A step of inserting and installing the casing 4 into the large-diameter geothermal excavation hole 1 and then performing grouting 3; Digging the geothermal excavation hole (1) to a predetermined depth by using a small diameter drilling bit; A step of installing and fixing the anchor 50 connected to the bottom of the geothermal excavation hole 1 excavated with a small diameter by connecting the rope 40; Inserting and installing the geothermal coil pipe 20 to which the rope 40 is connected into the geothermal excavation hole 1; Extracting and removing the rope 40 from the geothermal excavation hole 1; Filling the filler 10 into the geothermal excavation hole 1; Method for installing a high-definition vertically sealed underground heat exchanger, characterized in that the geothermal coil pipe 20 is made of a process of coupling to the connection pipe of the heat exchanger (7) installed on the ground.
As a method comprising a step of filling supplementary water into the geothermal coil pipe (20), using a large diameter drilling bit to excavate the geothermal excavation hole (1) to the bottom of the rock to prevent contamination; A step of inserting and installing the casing 4 into the large-diameter geothermal excavation hole 1 and then performing grouting 3; Digging the geothermal excavation hole (1) to a predetermined depth by using a small diameter drilling bit; A step of installing and fixing the anchor 50 connected to the bottom of the geothermal excavation hole 1 excavated with a small diameter by connecting the rope 40; Filling the inside of the geothermal coil pipe (20) with supplemental water; Inserting and installing the geothermal coil pipe 20 to which the rope 40 is connected into the geothermal excavation hole 1; Extracting and removing the rope 40 from the geothermal excavation hole 1; Filling the filler 10 into the geothermal excavation hole 1; Method for installing a high-definition vertically sealed underground heat exchanger, characterized in that the geothermal coil pipe 20 is made of a process of coupling to the connection pipe of the heat exchanger (7) installed on the ground.
Digging the geothermal excavation hole (1) to the bottom of the rock to prevent contamination by using a large diameter drilling bit; A step of inserting and installing the casing 4 into the large-diameter geothermal excavation hole 1 and then performing grouting 3; Digging the geothermal excavation hole (1) to a predetermined depth by using a small diameter drilling bit; A step of installing and fixing the anchor 50 connected to the bottom of the geothermal excavation hole 1 excavated with a small diameter by connecting the rope 40; Inserting and installing the geothermal coil pipe 20 to which the rope 40 is connected into the geothermal excavation hole 1; Filling the filler 10 into the geothermal excavation hole 1; Method for installing a high-definition vertically sealed underground heat exchanger, characterized in that the geothermal coil pipe 20 is made of a process of coupling to the connection pipe of the heat exchanger (7) installed on the ground.
Further drilling the geothermal excavation hole (1) to a predetermined depth by using the excavation bit; Installing and fixing the anchors 50 connected to the bottom of the excavated geothermal excavation hole 1 to which the rope 40 is connected; Inserting and installing the geothermal coil pipe 20 to which the rope 40 is connected into the geothermal excavation hole 1; Filling the filler 10 into the geothermal excavation hole 1; Method for installing a high-definition vertically sealed underground heat exchanger, characterized in that the geothermal coil pipe 20 is made of a process of coupling to the connection pipe of the heat exchanger (7) installed on the ground.
Forming an opening in a lower portion of the geothermal coil pipe (20); Injecting high-pressure compressed air or compressed water into the geothermal coil pipe 20 to discharge sand to the outside; Removing the geothermal coil pipe (20) by drawing it to the outside and emptying the facilities installed inside the geothermal excavation hole (1); Installing and fixing the anchor 50 connected to the bottom of the geothermal excavation hole 1 to which the rope 40 is connected; Filling the inside of the geothermal coil pipe (20) with supplemental water; Inserting and installing the geothermal coil pipe 20 to which the rope 40 is connected into the geothermal excavation hole 1; Extracting and removing the rope 40 from the geothermal excavation hole 1; Filling the filler 10 into the geothermal excavation hole 1; Method for installing a high-definition vertically sealed underground heat exchanger, characterized in that the geothermal coil pipe 20 is made of a process of coupling to the connection pipe of the heat exchanger (7) installed on the ground.