KR101640589B1

KR101640589B1 - Apparatus for cutting geothermal pipe

Info

Publication number: KR101640589B1
Application number: KR1020160012144A
Authority: KR
Inventors: 송진우
Original assignee: 송진우
Priority date: 2016-02-01
Filing date: 2016-02-01
Publication date: 2016-07-19

Abstract

A geothermal pipe cutting apparatus according to the present invention includes a pipe cover 110 inserted through an open top opening of a geothermal pipe 10; A center hole 120 detachably coupled to the center of the pipe lid 110 through the center of the pipe lid 110; A rotating structure (130) having one side thereof coupled to the center hole (120) along the axial direction; A cutting unit 140 arranged to surround the center hole 120; And a fixing unit (150, 160) disposed on both sides of the cutting unit (140). The rotation unit (130) driven according to power transmission from an external driving source rotates the center hole (120) The cutting unit 140 is rotated and is expanded to the outside of the center hole 120 by the centrifugal force to cut the geothermal pipe 10.

Description

{Apparatus for cutting geothermal pipe}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a geothermal pipe cutting apparatus, and more particularly, to a geothermal pipe cutting apparatus for geothermal pipeline cutting apparatus, which comprises a geothermal pipe inserted into a perforation hole formed in an inner side of a casing inserted through a ground, And more particularly to a geothermal pipe cutting apparatus for cutting a pipe.

Recently, in order to cope with high oil prices, the construction industry is actively developing alternate energy that can replace oil or natural gas as an energy source used for heating and cooling. Among these alternative energy sources, technologies that can be applied to air conditioning systems using wind power, solar heat, and geothermal power with infinite energy sources are being studied. These energy resources have little effect on air pollution and climate change, While the energy density is low.

In order to obtain wind and solar energy, a large area must be secured along with the limit of the installation site. Since these devices have low energy production, and are expensive to install and maintain, there is a limit to the application to the air conditioning system.

On the other hand, since geothermal energy is relatively inexpensive to install and maintain, many cooling and heating systems using geothermal heat as a heat source have been proposed. Geothermal heat is the amount of heat that flows out of the earth through the surface to the outside. The ground temperature varies depending on the terrain, but the temperature in the ground near the ground surface is about 10 to 20 degrees Celsius and remains constant throughout the year. Unlike the renewable energy such as solar heat or wind power, these geothermal sources have the advantage of being able to supply heat sources stably.

A heat exchange system using a geothermal source is configured to simultaneously perform cooling and heating by using ground water, ground water, and ground under constant temperature throughout the year as a heat sink for cooling and as a heat source for heating.

The geothermal exchange system according to the related art is generally divided into a vertical geothermal exchange system and a horizontal geothermal exchange system depending on the arrangement direction of the loop type pipe.

Vertical geothermal exchange system is a type in which roof type pipe is buried vertically to the lower part of structure or surplus notice of houses and circulates fluid to exchange heat with ground. Horizontal type geothermal exchange system is a loop type pipe It circulates the fluid in the ground and exchanges heat with the earth.

Vertical geothermal exchange system does not occupy much of the site, so it is used in a small building site such as a single building. Generally, in the case of downtown buildings, there is no room for installing the underground heat exchanger because the surplus site is narrow, so an underground heat exchanger is often installed under the foundation of the building.

In particular, to construct a geothermal piping pipe in the case of a top-down construction of a building, a casing is inserted to the boundary between the soil layer and the rock layer, and an underground perforation hole is formed in a substantially vertical direction. Insert the drain pipe. After that, the casing and the geothermal piping located on the ground layer are cut by a certain length according to the trenching process, and then a separate cap is used to prevent foreign matter from entering into the geothermal piping, or a U- When inserting, the socket is fused to the lower part of the building, and the pipe is inserted and the upper part is pulled up.

As described above, the buried casing and the geothermal piping in the conventional construction method inconveniences work by performing the cutting work from time to time in the process of performing the subterranean wave, and the wasted factor for the casing and the geothermal pipe And the risk of breakage of the casing or the like during the tearing operation, there is a delay factor in the working process and the cost burden is increased.

In addition, due to the nature of the underground construction method, it is difficult to know the degree of inserting the piping and the leakage of the piping when inserting the piping due to the nature of the underground construction method. When the piping is not inserted from the middle due to the collapse of the hole after inserting the piping, There is a difficulty in reworking.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made in an effort to solve the above-mentioned problems, and it is an object of the present invention to provide a geothermal heat pipe having a structure in which a geothermal pipe is inserted into a perforation hole formed on the inside of a casing inserted through a ground, And to provide a pipe cutting apparatus for a geothermal heat.

According to an aspect of the present invention, there is provided an apparatus for cutting a geothermal pipe, including: a pipe cover (110) inserted through an open top opening of a geothermal pipe (10); A center hole 120 detachably coupled to the center of the pipe lid 110 through the center of the pipe lid 110; A rotating structure (130) having one side thereof coupled to the center hole (120) along the axial direction; A cutting unit 140 arranged to surround the center hole 120; And a fixing unit (150, 160) disposed on both sides of the cutting unit (140). The rotation unit (130) driven according to power transmission from an external driving source rotates the center hole (120) The cutting unit 140 is rotated and is expanded to the outside of the center hole 120 by the centrifugal force to cut the geothermal pipe 10.

The cutting unit (140) includes a cutting central body fixed on an outer peripheral surface of the center sphere (120) and a cutting body rotatably disposed on the cutting central body, wherein the cutting body A plurality of radially spaced apart structures are arranged on the basis of the center.

The fixing units 150 and 160 include an upper fixing unit 150 and a lower fixing unit 160 disposed on both sides of the cutting unit 140 and the fixing units 150 and 160 are connected to the rotating shaft of the cutting unit 140 Grooves are formed to enable stable rotation of the cutting tool.

According to an aspect of the present invention, there is provided a method of cutting a geothermal pipe using a geothermal pipe cutting apparatus, comprising: inserting a casing up to a boundary between a ground layer and a rock layer; A step of inserting a U-shaped geothermal pipe 10 into a perforation hole after forming a perforation hole; Inserting the geothermal pipe cutting device into the geothermal piping (10) using the rotary structure (130); Providing a power to the rotary structure 130 through an external drive source after the geothermal pipe cutting device is lowered to a predetermined distance through the geothermal pipe 10; Cutting the cutting unit 140 while the cutting unit 140 mounted on the center hole 120 is rotated according to the rotation of the rotary structure 130 so that the blade is spread outwardly of the center hole 120 by centrifugal force; And causing the rotary structure (130) to rise along the geothermal pipe (10). When the upper side of the cut geothermal pipe (10) is discharged to the ground, The pipe lid 110 is positioned on the lower side of the geothermal pipe 10 to cover the upper portion of the geothermal pipe 10 buried therein.

The geothermal pipe cutting apparatus according to the present invention as described above inserts a geothermal pipe into a perforation hole formed on the inner side of a casing inserted through a ground and cuts the geothermal pipe inserted into the lower end of an underground structure to be constructed do.

The present invention is an improved method for solving the difficulties of interfering with other processes and sludge management in that it is difficult to pierce due to high cost when drilling for geothermal piping at the lower part of the building in the existing tower-down method.

1 is a conceptual diagram of a piping cutting device for geothermal heat according to an embodiment of the present invention;
Fig. 2 is a view of the geothermal pipe cutting apparatus of Fig. 1 viewed from another direction, Fig.
3 is a conceptual diagram of a piping cutting device for geothermal heat according to another embodiment of the present invention, and Fig.
Fig. 4 is a view of the geothermal pipe cutting apparatus of Fig. 3 viewed from another direction. Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of other various forms of implementation, and that these embodiments are provided so that this disclosure will be thorough and complete, It is provided to let you know completely. Wherein like reference numerals refer to like elements throughout.

It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference numerals whenever possible, even if they are shown in different drawings. In the following description of the present invention, a 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.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

Hereinafter, a geothermal pipe cutting apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG.

The geothermal piping cutting apparatus includes a piping cover 110 inserted into the geothermal piping 10 through an open upper opening of the geothermal piping 10, A rotating structure 130 in which one side thereof is coupled along the axial direction to the center sphere 120, a cutting unit 140 disposed in the form of surrounding the center sphere 120, (150, 160) disposed on both sides of the base portion (140).

The pipe lid 110 is a flexible member having a flexible material, and a fastening hole through which the center hole 120 can be pierced is formed at the center. The diameter of the pipe cover 110 is preferably larger than the inner diameter of the geothermal pipe 10. This prevents foreign matter from flowing through the process of minimizing the occurrence of clearance between the outer circumferential surface of the pipe lid 110 and the inner circumferential surface of the geothermal pipe 10 in the process of inserting the pipe lid 110 on the geothermal pipe 10 I would like to.

It may also be necessary to facilitate disconnection of the piping lid 110 after the piping lid 110 is positioned on the lower end of the underground structure where the geothermal piping 10 is required to be cut. That is, after the pipe lid 110 is lowered to the inside of the geothermal pipe 10 as in the case of the center hole 120, in order to allow the pipe lid 110 to remain on the inside of the geothermal pipe 10, The pipe lid 110 can increase the frictional force with the inside of the geothermal pipe 10. In order to increase the frictional force, a separate projection structure may be formed on the upper end of the pipe lid 110.

The center hole 120 transmits the rotational force to the cutting unit 140 in a state where the center hole 120 is connected to the lower end of the rotary structure 130. The center hole 120 may be symmetrical with respect to the center axis . For example, it may have a cylindrical shape. Meanwhile, a separate presser may be formed on the upper portion of the outer circumferential portion of the center hole 120 where the pipe lid 110 is coupled. The presser body functions to facilitate the descent of the pipe lid 110 fastened to the center hole 120 in the process of descending the center hole 120 along the geothermal pipe 10. That is, the pipe lid 110 detachably coupled to the center hole 120 at the time of descending along the geothermal pipe 10 serves to prevent the central hole 120 from departing upward.

The rotary structure 130 supports the center hole 120 and the rotary structure 130 and transfers the rotational force of the external driving motor to the center hole 120 and the rotary structure 130.

The cutting unit 140 has a cutting center body fixed on the outer peripheral surface of the center sphere 120 and a cutting body rotatably disposed on the cutting center body. The cutting tool may have a structure in which a plurality of cutting tools are arranged at regular intervals in a radial direction with respect to the center of the cutting center body. As described above, in the frame of the cutting center body, the cut edges formed on the one side with a blade are eccentrically joined at a predetermined interval.

When the external driving motor is operated, the cutting unit 140 attached to the center hole 120 is rotated according to the rotation of the rotary structure 130, and is released to the outside of the center hole 120 by centrifugal force, do.

The fixing units 150 and 160 include the upper fixing unit 150 and the lower fixing unit 160 and are structured to be disposed on the upper and lower sides of the cutting unit 140, have. The fixing portions 150 and 160 are formed with grooves or holes that are aligned with the rotary shaft of the rotary shaft rotatably disposed on the cutting center body, thereby enabling stable rotation of the rotary shaft.

Hereinafter, a geothermal pipe cutting apparatus according to another embodiment of the present invention will be described with reference to FIGS. 3 to 4. FIG.

The pipe cover 110 'is a member having a flexible and flexible material, and a fastening hole through which the center hole 120 can be fastened is formed at the center. The diameter of the pipe cover 110 is preferably larger than the inner diameter of the geothermal pipe 10. This prevents foreign matter from flowing through the process of minimizing the occurrence of clearance between the outer circumferential surface of the pipe lid 110 and the inner circumferential surface of the geothermal pipe 10 in the process of inserting the pipe lid 110 on the geothermal pipe 10 I would like to.

Specifically, the pipe lid 110 'has a straight cutout along the radial direction with respect to the center of the pipe lid 110'. A semicircular groove is formed on the outer circumferential surface of the pipe lid 110 '.

Hereinafter, the process of cutting the geothermal pipe inserted into the ground by using the geothermal pipe cutting device will be described with reference to Figs. 1 to 4 again.

First, a casing is inserted to the boundary between the soil layer and the rock layer, a perforation hole is formed in the casing in the vertical direction, and a U-shaped geothermal pipe is inserted into the perforation hole.

The geothermal pipe cutting device according to the present invention is inserted into the geothermal pipe using the rotary structure 130. [ The pipe cover 110, the cutting unit 140 and the fixing portions 150 and 160 coupled to the center hole 120 through the open top opening of the geothermal piping 10 are integrally lowered during the insertion process.

After the geothermal pipe cutting device is lowered to a predetermined distance through the geothermal pipe 10, power is supplied to the rotary structure 130 through the drive motor to enable rotational driving.

When the external driving motor is operated, the cutting unit 140 attached to the center hole 120 is rotated according to the rotation of the rotary structure 130, and the blade is expanded to the outside of the center hole 120 by the centrifugal force, .

Thereafter, the rotary structure 130 is caused to rise along the geothermal pipe 10. At this time, the pipe lid 110 coupled to the center hole 120 is separated from the center hole 120 by friction with the geothermal pipe 10, and remains on the lower side of the cut portion of the geothermal pipe 10.

The upper side of the cut geothermal pipe 10 is taken out to the ground. In this case, the pipe cover 110 is located on the lower side of the cut geothermal pipe 10 buried in the ground.

In the process of performing the geothermal piping work, the pipe lid is stably installed on the top of the geothermal piping cut to the lower end of the underground structure to be constructed, It is possible to eliminate the inconvenience of carrying out the cutting operation and eliminate the risk and cost burden due to damage to the existing casing.

It is to be understood that the terms "comprises", "comprising", or "having" as used in the foregoing description mean that the constituent element can be implanted unless specifically stated to the contrary, But should be construed as further including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: Geothermal piping
110: Plumbing cover
120: center hole
130: rotating structure
140: Cutting unit
150, 160:

Claims

A pipe cover 110 which is inserted through an open top opening of the geothermal piping 10;
A center hole 120 detachably coupled to the center of the pipe lid 110 through the center of the pipe lid 110;
A rotating structure (130) having one side thereof coupled to the center hole (120) along the axial direction;
A cutting unit 140 arranged to surround the center hole 120; And
(150, 160) disposed on both sides of the cutting unit (140)
The cutting unit 140 mounted on the center hole 120 is rotated and rotated by the centrifugal force in accordance with the rotation of the rotary structure 130 driven by power transmission from an external driving source, The geothermal pipe 10 is cut off while being spread outward,
The pipe lid 110 is a member having a flexible and flexible material and is formed with a fastening hole at the center so that the center pipe 120 can be tightly inserted into the pipe lid 110. The diameter of the pipe lid 110 is smaller than the diameter of the geothermal pipe 10,
A separate pressing member is formed on an upper portion of the outer circumferential portion of the center hole 120 to which the pipe lid 110 is coupled. The pressing member prevents the center hole 120 from being lowered along the geothermal pipe 10 The pipe lid 110 fastened to the center hole 120 is easily lowered,
Pipe cutting device for geothermal.

The method according to claim 1,
The cutting unit (140)
A cutting center body fixed on an outer circumferential surface of the center sphere 120, and a cutting body coupled to the cutting center body by a rotation axis and rotatably arranged with respect to the cutting center body,
Wherein the cut-out is a structure in which a plurality of radially spaced-apart structures are disposed with respect to the center of the cut-
Pipe cutting device for geothermal.

3. The method of claim 2,
The fixing units 150 and 160 include an upper fixing unit 150 and a lower fixing unit 160 disposed on both sides of the cutting unit 140,
The fixing part (150, 160) is formed with a groove communicating with the rotating shaft of the cutting tool to enable stable rotation of the cutting tool.
Pipe cutting device for geothermal.

A method of cutting a geothermal pipe using a geothermal pipe cutting apparatus according to any one of claims 1 to 3,
Inserting a U-shaped geothermal pipe (10) into a perforation hole after inserting a casing up to the boundary between the soil layer and the rock layer, forming a perforation hole in the vertical direction on the inside of the casing,
Inserting the geothermal pipe cutting device into the geothermal pipe 10 using the rotary structure 130;
Providing a power to the rotary structure 130 through an external drive source after the geothermal pipe cutting device is lowered to a predetermined distance through the geothermal pipe 10;
Cutting the cutting unit 140 while the cutting unit 140 mounted on the center hole 120 is rotated according to the rotation of the rotary structure 130 so that the blade is spread outwardly of the center hole 120 by centrifugal force; And
And causing the rotary structure (130) to rise along the geothermal pipe (10)
In the step of inserting the geothermal pipe cutting device into the geothermal pipe 10, the presser body formed in the center hole 120 is moved in a direction in which the center hole 120 descends along the geothermal pipe 10 Thereby facilitating the descent of the pipe lid 110 fastened to the center hole 120,
In the case of discharging the upper side of the cut geothermal piping 10 to the ground, the piping lid 110 is located at the lower side of the cut geothermal piping 10 buried in the ground, ), &Lt; / RTI >
A method for cutting a geothermal pipe.