KR101512303B1 - The Using Separator and Circulation Flushing System - Google Patents

Abstract

The present invention relates to a cycle structural and open type geothermal system. Mounted with an interval maintenance unit which prevents thermal interference by maintaining an interval of a redemption tube sending underground water heat exchanged through a supply tube supplying underground water to a heat exchanger, and a heat exchanger back to the underground, filled with filling materials like gravel in a tube well wherein the supply tube and the redemption tube are located; the system prevents a hole collapse, avoids pollution underground due to grouting, increases inflow of underground water into the supply tube by mixing the circulating water through the redemption tube and the underground water stagnant in the underground, and provides underground water with filtration through filling materials.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an open-

The present invention relates to a circulation type open geothermal system, and more particularly, to a circulation type open geothermal system, and more particularly, to a circulation type open geothermal system, The gap holding part is mounted so as to be constantly maintained, and the filler such as gravel is filled in the tubular well where the supply pipe and the return pipe are inserted (inserted), thereby increasing the inflow amount of the groundwater into the supply pipe, At the same time, it can replace the bentonite which is the ground water pollutant, and it can give the filtration function of the contaminated ground water. In addition, when the supply and return pipe is blocked by the pollutant, surging can be done through surging (cleaning with air or water pressure) And to an open geothermal system with a circulation structure.

Generally, fossil fuels such as coal, petroleum, and natural gas are directly used for heating for industrial or domestic use, or electric power produced by using fossil fuel is used.

However, fossil fuels not only pollute the environment due to the generation of pollutants during combustion, but also reduce their reserves due to the rapid use of fossil fuels. In recent years, development of energy sources capable of replacing such fossil fuels has been actively carried out have.

Such alternative energy sources may include wind power, solar and solar light, geothermal power, and the like. In order to produce solar and solar energy sources using wind or solar, large-scale power generation equipment must be installed on the ground, and there is a great cost to install and maintain these power generation equipment, and energy efficiency is not high There are disadvantages.

On the other hand, a heat exchange system that uses geothermal heat as an energy source, which does not require a large installation area with good heat efficiency, and which requires relatively low installation and maintenance costs, is in the spotlight.

The geothermal exchange system is a technology that utilizes the temperature difference of underground water to cool and heat. In order to recover geothermal heat, a geothermal heat exchanger having a heat transfer fluid therein is buried in the ground, and a heat pump Discloses a technique for performing heat exchange with a fluid having a geothermal heat recovered through a geothermal exchanger.

However, in the prior art, when the bubbles are generated in the closed loop, that is, in the closed loop, the circulation of the fluid is difficult and the number of holes to be drilled is large, If the temperature of the fluid drops below the freezing temperature, the performance of the heat pump is deteriorated.

Therefore, in a method of performing heat exchange using a large amount of ground water that can not be performed as a general closed-loop geothermal pump, an open circuit type well that receives groundwater through a supply pipe and performs heat exchange, The conventional method is used.

However, even in such a case, if a drain pipe for discharging the ground water exchanged with the supply pipe for supplying the ground water to one pipe is inserted and the supply pipe is inserted too low in the underground pipe, There is a problem in that there is a problem that the circulation of the groundwater can not be smoothly performed due to the pump burn-out when the supply pipe is clogged by various pollutants such as ground water source.

In addition, when the supply pipe and the discharge pipe are clogged by bentonite or the like existing in the inner part of the pipe, the pump is burned and the circulation of the ground water can not be smoothly performed.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a water supply system and a water supply system, which can prevent a thermal interference by maintaining a distance between a supply pipe for supplying groundwater containing geothermal heat from the ground and a water- (125mm) to 200m below ground and lower connection pipe (75mm) down to 500m underground by installing a distance maintenance part and a connection pipe with a flow path at the lower end. It is an object of the present invention to provide a circulation type open geothermal system capable of enhancing the groundwater filtration function through the filling material and increasing the amount of ground water flowing in the groundwater.

However, the object of the present invention is not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, in a circulation-type open geothermal system according to an embodiment of the present invention, a plurality of inflow holes for inserting groundwater in the ground are inserted in a direction perpendicular to the well, A heat exchanger connected to one end of the supply pipe and supplied with circulating water pumped by the water pump to perform heat exchange; A flow path is formed in the inner portion so as to return the circulated water heat exchanged through the heat exchanger to the ground, one end of which is connected to the heat exchanger, and a certain amount of circulating water The upper end of which is connected to the other end of the supply pipe and the other end of the return pipe, A U-shaped pipe protective support mounted on a lower end of the connection pipe, and a U-shaped pipe protection supporting part mounted on a lower end of the U-shaped pipe in a direction perpendicular to the supply pipe and the water return pipe A gap maintaining unit for keeping the distance between the supply pipe and the water return pipe at a predetermined distance from the supply pipe and the water return pipe, And a filling material filling the inside of the pipe in a state where the pipe and the water return pipe are disposed in the pipe, A first holding member which is formed to have a predetermined thickness and is disposed between the supply pipe and the water return pipe; It characterized in that the holding member comprises a second inclined portion formed on the side.

According to another aspect of the present invention, there is provided an open geothermal system having a circulation structure, comprising: a first seating part formed on one side of the second holding member and in contact with an outer circumferential surface of the supply pipe; a second seating part formed on the other side, And a pair of inclined portions formed between the first and second seating portions and formed to be inclined from the central portion to the front and rear ends, respectively, and the first and second seating portions, And the height is reduced.

Further, in the circulating-structured open geothermal system according to the present invention, the diameter of the first seating portion is formed to be larger than the diameter of the second seating portion.

In addition, the open-loop geothermal system according to the present invention is characterized in that the filling material is composed of filtering gravel for preventing air-gap breakage and preventing contamination in groundwater due to grouting, and the tube fixing part is formed in the form of a stent band .

In addition, in the circulating-structured open geothermal system according to the present invention, a flow path is formed in the connection pipe at the upper end of the pipe protecting and supporting unit, and the circulating water, which is returned to the ground through the return pipe, To a supply pipe.

According to the circulating-structure open geothermal system of the present invention, the distance between the supply pipe and the return pipe through the supply pipe for supplying the ground water including the geothermal heat from the ground and the distance maintenance part installed between the water- The advantage of being able to be easily installed in the city by installing the guide tube for protecting and supporting the U-shaped pipe in which the heat interference between the supply pipe and the return pipe can be kept constant while the flow pipe is formed at the lower end of the supply pipe and the return pipe have.

In addition, in the open-loop geothermal system of the present invention, the filler such as gravel is filled in the pipe where the supply pipe and the return pipe are disposed, thereby increasing the inflow amount of the groundwater into the supply pipe, preventing pollution and preventing pollution in the groundwater due to grouting, The groundwater filtration function can be improved.

In addition, according to the present invention, since the distance maintaining unit for maintaining the distance between the supply pipe and the water return pipe is provided with the holding member formed so as to be sloped from the upper side to the lower side, the phenomenon that the soybean gravel is clogged by the holding unit at the time of filling is blocked, There is an advantage that it can be filled.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a circulation type open geothermal system according to an embodiment of the present invention; FIG.
2 is a view showing an assembled state of a supply pipe and a water return pipe constituting a circulation-type open geothermal system according to an embodiment of the present invention.
FIG. 3 and FIG. 4 are diagrams showing a configuration of a gap holding part mounted between a supply pipe and a return pipe in a circulating-structure open geothermal system according to an embodiment of the present invention.
5 (a) and 5 (b) are a perspective view and a top view respectively showing a second holding member constituting a gap holding portion according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a detailed description of preferred embodiments of the present invention will be given with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Embodiments in accordance with the concepts of the present invention can make various changes and have various forms, so that specific embodiments are illustrated in the drawings and described in detail in this specification or application. It is to be understood, however, that it is not intended to limit the embodiments according to the concepts of the present invention to the particular forms of disclosure, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises ",or" having ", or the like, specify that there is a stated feature, number, step, operation, , Steps, operations, components, parts, or combinations thereof, as a matter of principle.

FIG. 1 is a schematic view of a circulating-structure open geothermal system according to an embodiment of the present invention. FIG. 2 and FIG. 3 are views showing an assembled state of a supply pipe and a return pipe constituting a circulating-structure open geothermal system according to an embodiment of the present invention Fig.

The open type geothermal system 1 according to the embodiment of the present invention includes a first supply pipe 110 and a second supply pipe 120 inserted into a pipe 3 formed in the ground 2, A supply pipe 10, a heat exchanger 30, and a water return pipe 40.

The supply pipe 10 may have a channel (not shown) formed therein and a plurality of scratch-shaped fine inflow holes 11 through which groundwater of the ground 2 can flow into the supply pipe 10.

In addition, the heart pump 20 may be disposed in the first supply pipe 110 having a larger diameter than the second supply tube 120. Therefore, the circulating water mixed with the groundwater, which is heat-exchanged through the geothermal heat and is introduced through the inlet hole 11, in the state of being inserted in the direction perpendicular to the tube 3, And can be transferred to the exchange 30.

The heartbeat pump 20 is a means for pumping the circulating water in the supply pipe 10, which has been heat-exchanged by the underground heat source 2, to the ground, and a pump such as an underwater motor can be employed in various forms.

The heat exchanger 30 absorbs the energy of the geothermal heat from the circulated water heat-exchanged by the geothermal heat. The heat exchanger 30 may be employed in various forms depending on its use. , And can be returned to the ground (2) through a water return pipe (40) inserted in a direction perpendicular to the pipe (3).

(Not shown) is formed in the water return pipe 40. One end of the circulation water is connected to the heat exchanger 30 to return the circulating water discharged through the heat exchanger 30 to the ground, A plurality of fine discharge holes 41 in the form of a scratch can be formed to discharge a predetermined amount of circulating water to the discharge port 2.

The filler 50 may be filled between the supply pipe 10, the water return pipe 40, and the pipe 3. The filling material 50 may be obtained by filtration of groundwater introduced into the fine inflow hole 11 of the supply pipe 10 by filtration gravel or elvan stone or discharging it to the ground 2 through the water return pipe 40 The circulating water can be filtered.

2, the first supply pipe 110 is formed of a plurality of first supply pipe members 111, the first supply pipe member 111 has a female thread 112 formed on the inner surface of the upper end thereof, A male screw thread 113 is formed on the outer surface of each of the first supply tubes 111 and the second supply tubes 111, respectively.

The second supply pipe 120 having a diameter smaller than that of the first supply pipe 110 is also made up of a plurality of second supply pipe members 121. The first supply pipe member 111 has the same structure as the first supply pipe member 111, 122 are formed on the outer surface of the lower end and male threads 123 are formed on the outer surface of the lower end and are screwed to each other.

The first supply pipe 110 and the second supply pipe 120 may be connected to each other through the connection pipe member 130 as shown in the figure. The upper end of the connecting pipe member 130 is formed with a female thread 131 having the same diameter as the male thread 113 of the first supply pipe member 111 so as to be coupled with the male thread 113 of the first supply pipe member 111 And a male thread 132 having the same diameter as the female thread 122 of the second supply pipe member 121 can be formed at the lower end so as to be engaged with the female thread 122 of the second supply pipe member 121. [

The water return pipe 40 is formed by connecting a plurality of water return pipe members 411. A female thread 412 is formed on an inner upper surface of the upper end of each water return pipe member 411, And they may be screw-coupled to each other.

An H-shaped connection pipe 60 having a flow path (not shown) formed therein may be mounted on the lowermost end of the supply pipe 10 and the water return pipe 40. The upper ends of the H-shaped connecting pipes 60 are respectively formed with female threads and can be coupled to the supply pipe 10 and the water return pipe 40 in a threaded manner, have.

The circulation water circulated in the water return pipe 40 can be transferred to the supply pipe 10 through the flow path formed inside the H-shaped connection pipe 60. The circulation water can be circulated through the water return pipe 40 to the ground 2 The recirculated water to be returned can be supplied to the supply pipe 10 through the H-shaped connection pipe 60 after heat exchange by the geothermal heat.

A U-shaped tube protective support 70 may be mounted on the lower end of the H-shaped connector tube 60. Although not shown in detail, the pipe protecting and supporting portion 70 may have a passage formed therein.

Therefore, it is possible to connect the H-shaped connection pipe 60 in various forms so as to transfer the circulating water, which is returned to the ground through the water return pipe 40, to the supply pipe 10, , But it may be made of other materials as long as it does not cause corrosion of water and protects and supports the water.

Therefore, by inserting the supply pipe 10 and the water return pipe 40 into the ground 2 by the U shape and the weight of the pipe protecting and supporting part 50 mounted on the supply pipe 10 and the water return pipe 20 , It is possible to prevent a phenomenon that the wall of the well (3) is caught or broken.

Further, the supply pipe 10 and the water return pipe 40 may be formed in various shapes such as a socket connection in addition to the screw connection, and may be configured according to the depth of the pipe 3.

FIGS. 3 and 4 are views showing a configuration of a gap holding part mounted between a supply pipe and a return pipe in a circulating-structured open geothermal system according to an embodiment of the present invention. FIGS. 5A and 5B are views And a second holding member constituting a gap holding portion according to the first embodiment of the present invention.

In the present invention, in order to keep the distance between the supply pipe 10 and the return pipe 40 constant within the pipe 3, a plurality of gap holding parts 40 are provided between the supply pipe 10 and the return pipe 40, (80) can be mounted.

In the state where the gap holding portion 80 is mounted between the supply pipe 10 and the water return pipe 40, the pipe fixing portion 90 in the form of a stent band is connected to the outer peripheral surface of the supply pipe 10 and the return pipe 40, The pipe 10 and the water return pipe 40 can be coupled to each other.

If the pipe fixing part 90 can be made of a material having an elastic force in addition to the stent band shape as shown in the drawing, it is possible to combine the supply pipe 10 and the water return pipe 40, Can be used.

As shown in the figure, the gap holding portion 80 disposed between the supply pipe 10 and the water return pipe 40 is formed to have a predetermined thickness and is arranged between the supply pipe 10 and the water return pipe 40, Member 81 and a second holding member 82 disposed on the upper surface of the first holding member 81. [

Particularly, the first holding portion 83 is formed on the second holding member 82 so as to be in contact with the outer circumferential surface of the supply pipe 10 on one side, and the second seating portion 84 May be formed.

It is preferable that the diameter of the first seat portion 83 is formed larger than the diameter of the second seat portion 84 because the diameter of the supply pipe 10 can be formed larger than the diameter of the water return pipe 40. [

A pair of inclined portions 86 and 86 may be formed between the first seating portion 83 and the second seating portion 84 so as to be inclined from the central portion 85 to the front and rear ends. Therefore, referring to the drawings, the height of the first seating portion 83 and the second seating portion 84 can be reduced from the central portion 85 toward the front and rear ends, respectively.

As described above, the second holding member 82 having the inclined portions 86 and 86 formed on the upper surface of the first holding member 81 is provided with the filler material (for example, 50 can flow downward along the inclined portion and can be uniformly filled in the vessel 3 without being caught by the gap holding portion 80 or the vessel holding portion 90.

Further, although not specifically shown, a high-pressure pump capable of providing compressed air in the downward direction through the internal flow path of the water return pipe 40 may be disposed at the upper end of the water return pipe 40.

The groundwater flowing into the supply pipe 10 may contain foreign substances, and impurities may be generated by the use of the circulating water. Such foreign matter or impurities may cause clogging in the inside of the supply pipe 10 and the water return pipe 40 to reduce the heat efficiency or damage the heart pump 20 due to foreign substances.

The compressed air generated by the high pressure pump or the like at a high pressure is supplied to the water return pipe 40 so that the compressed air supplied to the water return pipe 40 can be moved to the supply pipe 10 and discharged to the outside.

The foreign matter can be discharged through the plurality of inflow holes 11 and the discharge holes 41 formed in the supply pipe 10 by the compressed air.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. will be. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

1: Open Geothermal System
10: supply pipe 20: heart pump
30: heat exchanger 40:
50: filling material 60: H-shaped connector
70: tube protecting and supporting part 80:
81: first holding member 82: second holding member
83: first seat portion 84: second seat portion
85: center portion 86: inclined portion
90: Government Administration

Claims (6)

A plurality of inflow holes for introducing underground water in the ground at a lower side and heat exchange through the geothermal heat and a circulation water mixed with ground water flowing into the ground, ;
A heat exchanger connected to one end of the supply pipe and supplied with circulating water pumped by the heart pump to perform heat exchange;
A flow path is formed in the inner portion so as to return the circulated water heat exchanged through the heat exchanger to the ground, one end of which is connected to the heat exchanger, and a certain amount of circulating water A discharge pipe having a plurality of discharge holes for discharge;
An H-shaped connection pipe having an upper end connected to the other end of the supply pipe and the other end of the return pipe, and having a flow path formed therein to transfer the circulating water, which is recirculated through the return pipe, to the supply pipe;
A U-shaped tube protective support mounted on a lower end of the coupling tube;
An interval maintaining unit installed at a predetermined interval in a direction perpendicular to the supply pipe and the water return pipe and maintaining a constant distance between the supply pipe and the water return pipe;
A pipe fixing part installed to be wound around the supply pipe and the water return pipe in a state in which the gap holding part is mounted between the supply pipe and the water return pipe and to join the supply pipe and the water return pipe; And
And a filling material filling the inside of the vessel with the supply pipe and the return pipe disposed in the vessel,
The space-
A first holding member formed to a predetermined thickness and disposed between the supply pipe and the return pipe;
And a second holding member which is disposed on the upper surface of the first holding member and has inclined portions on the front and rear sides thereof.
The method according to claim 1,
The second holding member
A first seating part formed at one side and in contact with an outer peripheral surface of the supply pipe;
A second seat formed on the other side and contacting the outer peripheral surface of the water return pipe; And
And a pair of inclined portions formed between the first and second seating portions and inclined from the center portion to the front and rear ends, respectively,
Wherein the first and second seating portions are each reduced in height from the center to the front and rear ends thereof.
3. The method of claim 2,
Wherein the diameter of the first seating part is larger than the diameter of the second seating part.
The method according to claim 1,
Wherein the filling material is filtering gravel for prevention of airtight breakage and prevention of pollution in groundwater due to grouting.
The method according to claim 1,
Wherein the tube fixing part is in the form of a stent band.
The method according to claim 1,
Wherein the pipe protecting and supporting part has a channel formed therein and transfers the circulating water recovered to the ground through the return pipe to the supply pipe.

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