KR101589264B1 - Cleaning Method and Apparatus of Tube Well - Google Patents

Cleaning Method and Apparatus of Tube Well Download PDF

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Publication number
KR101589264B1
KR101589264B1 KR1020150050444A KR20150050444A KR101589264B1 KR 101589264 B1 KR101589264 B1 KR 101589264B1 KR 1020150050444 A KR1020150050444 A KR 1020150050444A KR 20150050444 A KR20150050444 A KR 20150050444A KR 101589264 B1 KR101589264 B1 KR 101589264B1
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KR
South Korea
Prior art keywords
unit
guide
cleaning
well
groundwater
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KR1020150050444A
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Korean (ko)
Inventor
윤형조
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(주)에이스수자원개발
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Priority to KR1020150050444A priority Critical patent/KR101589264B1/en
Application granted granted Critical
Publication of KR101589264B1 publication Critical patent/KR101589264B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools, brushes, or analogous members
    • B08B1/001—Cleaning by methods involving the use of tools, brushes, or analogous members characterised by the type of cleaning tool
    • B08B1/002—Brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools, brushes, or analogous members
    • B08B1/008—Cleaning by methods involving the use of tools, brushes, or analogous members using translating operative members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools, brushes, or analogous members
    • B08B1/04—Cleaning by methods involving the use of tools, brushes, or analogous members using rotary operative members

Abstract

The present invention relates to a method and apparatus for cleaning groundwater, and a method for cleaning a tunnel according to an aspect of the present invention includes the steps of: (a) sealing a groundwater well; (b) supplying pressurized fluid to the inside of the enclosed groundwater well to pressurize the inside of the well to a higher pressure than the normal pressure, thereby pushing groundwater and foreign matter inside the well to the outside of the well; And (c) stopping the supply of the compressed fluid to the inside of the well, thereby bringing the inside of the well into a low-pressure state lower than the atmospheric pressure or the atmospheric pressure, thereby bringing groundwater and foreign substances pushed out of the well into the inside of the well, It is possible to efficiently remove the foreign substance.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning method and apparatus for cleaning groundwater,

The present invention relates to a method and apparatus for cleaning groundwater wells.

Underground water is formed by excavating the rock layer below the surface, groundwater is introduced through joints formed in the rock layer, and groundwater introduced into the reservoir is pumped up to ground by a pump. However, when the groundwater is used for a long time, sand or mud, or suspended matter or foreign matter cling to the inner wall of the canal prevents the groundwater from flowing smoothly into the well. In addition, ground contamination or carcasses of underground organisms enter the groundwater reservoir and pollute groundwater.

Therefore, we are working to clean groundwater irrigation periodically or non-periodically. Conventional general cleaning is to remove compressed slime from the wall or floor by spraying compressed air or water to the inside of the tunnel and discharging it to the ground or discharging it separately or together with the injection of compressed air or water The brush may be used to remove contaminants adhering to the wall surface of the well (see, for example, Patent Document 1).

However, according to this cleaning method, it is possible to remove foreign matter such as slime attached to the wall surface or the bottom of the well, but it is not effective to remove the foreign material which prevents the groundwater from flowing into the joint.

On the other hand, since the ground structures and structures are usually located in the vicinity of the tunnel, large-scale excavation equipment used in excavation of the tunnel can not be used as it is. Accordingly, it is possible to supply compressed air or water through a flexible hose, or connect pipes of a unit length into the inside of the pipe, and to a cleaning device having a spray nozzle, a brush, a brush rotating mechanism, To clean.

However, in the case of using such a rotating brush, there is a problem that when the cleaning device is not fixed to the inner wall surface of the tubular housing at the time of rotation of the brush, the hose supplying the compressed air or water is twisted together with the brush . In order to solve this problem, Patent Document 1 discloses a water purifying apparatus provided with a fixing chuck protruding and retracted by an air cylinder on the outer circumferential surface of a groundwater channel cleaning apparatus so that the cleaning apparatus is lowered to a certain depth into the interior of the tunnel and then stopped, After fixing the brush on the wall, the brush is rotated. When the cleaning of the brush is completed, the rotation of the brush is stopped, the fixing by the fixing chuck is released, and then the cleaning device is repeatedly lowered by a predetermined depth.

Therefore, according to the cleaning apparatus of Patent Document 1, a separate power is required for fixing the cleaning device, that is, an air cylinder, and it is inevitable to perform the cleaning stepwise, and the operation of the air cylinder or the brush must be frequently controlled at each step The efficiency of operation such as the operation becomes low.

Patent Document 1: Registration No. 10-1345722

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a method of cleaning groundwater wells and a cleaning device therefor, which can effectively remove not only the inner wall surface of the tunnel,

It is another object of the present invention to provide a groundwater tank cleaning apparatus having a high efficiency of operation while preventing the tuning rotation of the cleaning apparatus with a simple structure without any additional power.

According to an aspect of the present invention, there is provided a method of cleaning groundwater, including: (a) sealing a groundwater well; (b) supplying pressurized fluid to the inside of the enclosed groundwater well to pressurize the inside of the well to a higher pressure than the normal pressure, thereby pushing groundwater and foreign matter inside the well to the outside of the well; And (c) stopping the supply of the compressed fluid to the inside of the well, thereby bringing the inside of the well into a low pressure state at a pressure lower than the atmospheric pressure or the atmospheric pressure, thereby bringing groundwater and foreign matter pushed outside the well into the inside of the well.

Here, it is preferable that the steps (b) and (c) are repeated at least twice.

In addition, the method for cleaning the groundwater tank cleaning may include a step of cleaning the inner wall surface of the tank using a brush without sealing the groundwater tank, a step of spraying a compressed fluid or sand toward the inner wall surface of the tank without sealing the groundwater tank Step < / RTI >

According to another aspect of the present invention, there is provided an apparatus for cleaning a groundwater well by inserting it into a groundwater well, comprising: a stopper provided at an outer periphery of the one end and extending in a radial direction; unit; A sealing unit which is made of an elastically deformable material and which surrounds the outer periphery of the central unit so as to be slidable along the longitudinal direction of the center unit and is fitted into the ring; And a pressing unit which is fitted around the outer periphery of the central unit opposite to the stopper with the sealing unit interposed therebetween and presses the sealing unit toward the stopper, The sealing unit is elastically deformed so as to expand in the radial direction while being compressed in the longitudinal direction of the center unit so that the radially outer circumferential surface of the sealing unit closely contacts the inner wall surface of the groundwater tube to seal the groundwater tube.

The groundwater channel cleaning apparatus includes: a compressed fluid supply pipe having one end connected to the other end of the center unit and the other end branched in two; A compressor connected to one of the two branched ends of the compressed fluid supply pipe to supply a compressed fluid; And a valve selectively communicating either one of the two branched ends of the compressed fluid supply pipe or independently opening and closing the other two branched ends.

The center unit is provided with a protruding portion protruding in a radial direction so as to function as a piston, and the pressing unit includes an outer circumferential surface of the center unit, which is in contact with the outer circumferential surface of the protruding portion of the center unit, A hydraulic or pneumatic pressure control unit which is coupled to the central unit to form a space functioning as a cylinder chamber and supplies the operating fluid to a space functioning as the cylinder chamber to move the pressure unit relative to the center unit along the longitudinal direction, Cylinder.

Alternatively, a screw thread or a thread is formed on the outer peripheral surface of the middle portion of the central unit, and a thread or thread corresponding to the thread of the central unit or thread is formed on the inner peripheral surface of the pressing unit, The pressing unit may be screwed to the outer periphery of the central unit by means of the pressing unit and may be configured to move the pressing unit relative to the central unit relatively in the screwing manner by rotating the pressing unit with respect to the centering unit.

According to another aspect of the present invention, there is provided an apparatus for cleaning a groundwater well, which is inserted into a groundwater well and which is connected to a fluid supply pipe for supplying a compressed fluid, A cleaning unit that rotates about the center and cleans the inner wall surface of the duct; And a guide unit coupled to an upper portion of the cleaning unit to guide the lifting and lowering of the cleaning unit and prevent the fluid supply pipe from rotating in synchronization with rotation of the cleaning unit, Wherein the guide unit comprises: a central tube having a hollow tube shape communicating with the fluid supply tube; And at least two guide bodies which are longer than the transverse length in the longitudinal direction and are elastically biased radially outwardly of the central tube body so as to be radially coupled to the outer circumferential surface of the central tube body, When the unit is inserted into the underground water well, the outer circumferential surface of the guide body of the guide unit contacts the inner wall surface of the canopy, and the shape of the contact surface is a straight line or a rectangle long in the longitudinal direction of the canopy.

The guide unit may further include a coupling ring coupling the guide body to the center tube body while regulating a range in which the guide body is elastically biased radially outwardly of the center tube body so as to expand, The expandable range of the sieve can be adjusted.

Further, the center tube body is formed with spring fixing projections radially projecting radially in at least two radial directions from at least two outer peripheral surfaces along the longitudinal direction, and the guide body has a trough shape whose one surface is opened, Spring fixing protrusions of a guide body protrude from the inner peripheral surface at a position corresponding to the spring fixing projections of the central tube body when the one opened surface faces the central tube body, The guide body can be coupled to the central tube body by fixing both ends of the compression spring to the spring fixing projections.

According to one aspect of the present invention, a method and apparatus for cleaning groundwater in a well-known manner can effectively remove even foreign matter that is deeply entangled in a joint by sealing the canal, supplying compressed fluid to the inside of the closed canal, It is easy to penetrate the canal.

According to another aspect of the present invention, there is provided a groundwater channel cleaning apparatus including: a guide unit that extends and contracts in a radial direction, wherein a cleaning operation and an elevating operation can be simultaneously performed Excellent work efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description of the invention given below, serve to further the understanding of the technical idea of the invention. And should not be construed as limiting.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a conceptual diagram for explaining a method of cleaning groundwater wells according to an embodiment of the present invention. FIG.
FIG. 2 is a cross-sectional view of a groundwater scrubbing apparatus according to another aspect of the present invention used in the scrubbing process shown in FIG. 1;
3 is a cross-sectional view showing a modified example of the pressing unit of the tubular cleaning apparatus shown in Fig.
4 is a front view of a groundwater tank cleaning apparatus according to another aspect of the present invention.
Fig. 5 is a cross-sectional view of the guide unit of the tubular cleaning apparatus shown in Fig. 4, taken along line AA of Fig.
Fig. 6 is a longitudinal sectional view of the guide unit, taken along line BB in Fig. 5; Fig.
Fig. 7 is a perspective view of a part of the guide unit, wherein (a) is a perspective view of a guide body, and (b) and (c) are perspective views of a coupling ring.
8 is a schematic vertical sectional view of the cleaning unit of the tubular cleaning apparatus shown in Fig.
9 is a partially exploded perspective view of the cleaning unit.
Fig. 10 is a view showing a modification of the cleaning unit. Fig. 10 (a) is a longitudinal sectional view and Fig. 10 (b) is a transverse sectional view along line bb in Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents It should be understood that water and variations may be present.

In the following description, terms indicating the directions of up, down, left, right, longitudinal, and lateral directions are used based on the directions in the accompanying drawings, but these terms may be interpreted differently depending on the viewing direction.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a conceptual diagram for explaining a method of cleaning groundwater wells according to an embodiment of the present invention. FIG.

The groundwater well 10 is usually formed by digging to the rock layer through the surface layer and the joint 12 formed on the rock layer is exposed on the inner wall surface 11. The groundwater flows into the well 10 through the joints 12. However, when the groundwater well is used for a long period of time, sand or clay, or suspended matter or foreign matter is entangled in the form of a slime on the inner wall surface 11 and the joint 12 is blocked, So that it does not flow smoothly. Therefore, even if the slime attached to the inner wall surface 11 is removed with a brush or compressed air, the slime that has entered into the joint 12 is not removed, so that the inner wall surface 11 is not cleaned . Accordingly, the present invention provides a method for removing a slime entrapped in a joint 12.

That is, according to one aspect of the present invention, a method for cleaning groundwater wells according to the present invention comprises the steps of sealing a canopy 10 by using a canopy cleaning apparatus 100 described later and, as shown in FIG. 1 (a) The inside of the vessel 10 is brought into a state of high pressure higher than the atmospheric pressure by supplying a compressed fluid such as compressed air or water into the vessel vessel 10 so that groundwater and foreign matter in the vessel vessel 10 are formed in the vessel inner wall surface 11 And pushes it out of the vessel 10 through the joint 12. Subsequently, as shown in FIG. 1 (b), by stopping the supply of the compressed fluid to the inside of the vessel 10 and bringing the inside of the vessel 10 into a low pressure state lower than normal pressure or normal pressure, So that foreign matter enters the inside of the vessel 10. Then, the slime or the like, which is caught in the joint 12, is pushed outward and inward by the external force to come in and out of the vessel 10, and the closed vessel is opened.

Specifically, first, the tubular cleaning device 100 is connected to a compressed fluid supply pipe 160 for supplying a compressed fluid supplied by the compressor 150, and inserted into the tub 10. When the tubular cleaning device 100 is inserted to a predetermined depth, the sealing unit 120 made of an elastically deformable material such as rubber is inflated in the radial direction of the tubular structure and is brought into close contact with the tubular inner wall surface 11, do.

Next, the compressor 150 is operated to supply the compressed fluid into the sealed vessel 10 by the sealing unit 120. [ At this time, the valve 170 for opening and closing the branched flow path of the compressed fluid supply pipe 160 at the compressor end is fixed at a position where the supply flow path 161 from the compressor 150 and the tubular cleaning apparatus 100 are in communication with each other. 1 (a), the pressurized fluid is supplied to the inside of the well, and foreign matter such as ground water and slime is pushed out to the groundwater layer outside the well 10 through the joint 12 do. At this time, it is confirmed that the foreign matter is pushed out of the vessel 10 through the joint 12 when the pressure inside the vessel increases and decreases while observing the scale of the pressure gauge 180. Then, the operation of the compressor 150 is stopped. On the other hand, depending on the degree of the foreign matter being caught in the joint 12, foreign matter may not smoothly be pushed out of the tube 10. If the compressor 150 is continuously operated in this state, the compressor 150 is overloaded Or the tubular cleaning apparatus 100 may protrude upward along the inner wall surface 11 of the tubular structure. Therefore, if the pressure inside the vessel 10 measured by the pressure gauge 180 exceeds a predetermined reference value, the operation of the compressor 150 is stopped even if the foreign matter is not pushed out of the vessel 10.

Subsequently, the operation of the compressor 150 is stopped, and the valve 170 is switched to the position where the valve 170 is communicated with the interior of the inner space 10, the cleaning apparatus 100 and the discharge passage 162. Then, as shown by the arrow in FIG. 1 (b), the groundwater and foreign matter pushed out of the vessel are returned to the inside of the vessel 10 through the joints 12, And is discharged toward the discharge flow path 162. At this time, a pump (not shown) is connected to the discharge passage 162 to smooth the discharge of the foreign matter inside the vessel 10, and the pump is operated to bring the pressure inside the vessel 10 to a low pressure state lower than the normal pressure It is possible.

Repeating the above-described steps of supplying the compressed fluid to the inside of the tube 10 and discharging the foreign matter according to the degree that the foreign matter is caught in the joint 12 effectively removes the foreign matter deeply embedded in the joint 12, Can penetrate.

Meanwhile, the cleaning method according to the present invention may further include a conventional cleaning step in addition to the steps of supplying the compressed fluid to the inside of the closed conduit 10 and discharging the foreign matter. That is, before or after cleaning according to the tubular cleaning method described above, the tubular inner wall surface 11 is cleaned using a brush in a state in which the tubular wall 10 is not closed, or the nozzle is moved toward the inner wall surface 11 It is possible to clean the tubular inner wall surface 11 by spraying compressed fluid or sand. Cleaning of the inner wall 11 using the brush or nozzle is widely known, and a detailed description of the method will be omitted. The cleaning apparatus using the brush or nozzle according to the present invention will be described later.

Next, a tub cleaning apparatus according to another aspect of the present invention applicable to the tub cleaning method will be described.

Fig. 2 is a side view of another aspect of the present invention, which is used in a cleaning method for removing the foreign material stuck in the joint 12 by sealing the tubular well 10, that is, by sealing the tubular well 10 and supplying and stopping the compressed fluid Sectional view of an embodiment of a groundwater tank cleaning apparatus according to the present invention.

Referring to FIG. 2, the tub cleaning apparatus 100 according to the present embodiment includes a central tube 110 in the form of a hollow tube having open ends at both ends thereof, An enclosure unit 120 and a pressurization unit 130 which pressurizes the enclosure unit 120 to expand radially of the cannon 10 and seal the cannon 10.

The upper end of the central unit 110 is connected to the compressed fluid supply pipe 160 and the lower end of the central unit 110 is opened toward the inside of the duct 10. Accordingly, when the compressed fluid is supplied from the compressor 150 shown in FIG. 1 through the compressed fluid supply pipe 160, the compressed fluid is supplied into the tub 10 through the hollow portion of the central unit 110, The groundwater or the foreign matter can be discharged to the discharge passage 162 through the hollow portion of the central unit 110. [ A stopper 111 is provided on the outer peripheral portion of the lower end of the central unit 110 in a radial direction of the tube 10. The stopper 111 cooperates with the pressing unit 130 to implement the expansion / contraction of the sealing unit 120 in the radial direction. The stopper 111 is fitted in a ring shape on the outer peripheral surface of the lower end of the center unit 110 and is fixed by the nut 112 or can be realized in the form of a flange.

The sealing unit 120 is made of an elastically deformable material such as rubber and is fitted in a ring shape to surround the outer periphery of the center unit 110 so as to be slidable along the longitudinal direction of the center unit 110. The closing unit 120 is limited in its downward movement by the stopper 111 and is provided such that its outer diameter is slightly smaller than the inner diameter of the tubular member 10 in a state where it is not pressurized (vertically compressed).

The pressing unit 130 is fitted around the outer periphery of the center unit 110 on the opposite side of the stopper 111 with the sealing unit 120 interposed therebetween and presses the sealing unit 120 toward the stopper 111. Therefore, when the sealing unit 120 is pressed toward the stopper 111 by the pressing unit 130, as shown in FIG. 2 (b), the sealing unit 120 is compressed in the vertical direction, The radially outer circumferential surface of the sealing unit 120 is brought into close contact with the inner wall surface 11 of the tube wall to seal the groundwater tube 10 and conversely when the pressing force of the pressurizing unit 130 is released, 120 can be resiliently restored to its original shape so that the radially outer circumferential surface is spaced from the inner wall surface 111 so that the tubular cleaning device 100 can be lifted or lowered inside the tubular 10 to be inserted or withdrawn.

The pressurizing unit 130 may be embodied in the form of a hydraulic or pneumatic cylinder. 2, a protruding portion 112 protruding radially to function as a piston is provided at the middle portion of the central unit 110. The pressing unit 130 includes an upper ring 131 and a lower ring The spaces 134a and 134b functioning as the cylinder chamber are provided between the outer circumferential surface of the center unit 110 and the outer circumferential surface of the center unit 110 where the projecting portions 112 are not provided, To the center unit (110). The upper ring 131 and the lower ring 132 are provided with operating fluid passages 135a and 135b communicating with the spaces 134a and 134b serving as the respective cylinder chambers. Accordingly, by supplying the operating fluid such as oil or compressed air through the operating fluid flow paths 135a and 135b to the spaces 134a and 134b serving as the cylinder chamber, the pressing unit 130 can be moved in the longitudinal direction The sealing unit 120 can be pressed toward the stopper 111 or released.

Further, the pressing unit may be realized by a screw method. 3 showing a modification 130 'of the pressurizing unit, a thread or thread is formed on the outer peripheral surface of the middle part of the central unit 110', and the pressurizing unit 130 ' And the inner circumferential surface of the nut member 133 'is formed with a thread or thread corresponding to the thread of the central unit or the thread of the nut unit 133' so that the pressing unit 130 ' And a pressurizing unit 130 'including a lower ring 132' in a screw manner by screwing the nut member 133 'to the outer periphery of the central unit 110' Can be relatively moved along the longitudinal direction with respect to the central unit 110 'so that the sealing unit 120 can be pressed toward the stopper 111 or released.

1, the tub cleaning apparatus 100 further includes a compressed fluid supply pipe 160, a compressor 150, and a valve 170 on the central units 110 and 110 ' .

The lower end of the compressed fluid supply pipe 160 is connected to the upper end of the central unit 110 and 110 'and the upper end of the compressed fluid supply pipe 160 is connected to the supply path 161 and the discharge path 162, And the compressor 150 is connected to the supply flow path 161. [0050] In addition, a pump (not shown) may be connected to the discharge flow path 162 to smooth the discharge of the foreign substances inside the pipe 10.

The valve 170 is provided in two branched flow paths 161 and 162 of the compressed fluid supply pipe 160 for switching between the compressed fluid supply operation and the foreign matter discharge operation into the tubular housing 10. In FIG. 1, the valve 170 is shown as a three-way valve that selectively communicates two flow paths 161 and 162, but may be a separate valve that independently opens and closes the flow paths 161 and 162.

In the meantime, in the tub cleaning according to the present invention, as described above, by using the tubular cleaning device 100 as described with reference to FIGS. 1 to 3, the compressed fluid is supplied into the tub 10 / It is also possible to perform a conventional general cleaning, that is, spraying compressed fluid or sand on the inner wall surface 11 or cleaning the inner wall surface 11 with a brush before or after the operation of discharging the inner wall surface 11. 4 to 10, a tubular cleaning device 200 according to another embodiment of the present invention is a tubular cleaning device that is particularly suitable for cleaning using the brush or nozzle for rotating the inner tubular wall surface 11, Will be described.

As described above, since a ground structure or the like is usually disposed around the circumference of the vessel, large excavation equipment used in excavation of the vessel can not be used as it is, and it is preferable to supply the compressed fluid through the flexible hose. However, when a rotating brush or a nozzle is used, there is a problem that the hose is twisted and rotated together with the brush and the nozzle when the brush or the nozzle is rotated, and the hose is twisted inside the pipe. In order to solve this problem, Patent Document 1 has a fixed chuck that is protruded and retracted by an air cylinder, and the fixing and chucking operation of the cleaning device by the lifting-and-fixing chuck of the cleaning device is repeatedly performed , The efficiency of cleaning is reduced by that much. According to the tubular cleaning apparatus of the present embodiment, the lifting and cleaning (cleaning of the brush or nozzle) of the cleaning device can be performed at the same time, thereby enabling continuous and efficient cleaning.

4, the tubular cleaning apparatus 200 according to the present embodiment includes a cleaning unit 230 for cleaning the inner wall of the tubular body while rotating the tubular cleaning unit 230, And a guide unit 210 for guiding the whole of the tubular cleaning apparatus 200 according to the rotation and the lifting and lowering of the cleaning unit 210 while preventing the tune rotation of the hose. At this time, it is preferable that the maximum diameter of the guide unit 210 is formed to be larger than the diameter of the cleaning unit 230 so as to be in close contact with the inner wall surface 11.

4 to 6, the guide unit 210 includes a central tube body 211 and a guide body 221.

The central tube body 211 is basically in the form of a hollow tube and a fluid supply pipe 201 (preferably made of a hose) for supplying a compressed fluid by a connecting means such as a flange 203 is connected to the upper end thereof, And supplies the compressed fluid such as compressed air or water to the cleaning unit 230 connected to the lower portion. The central tube body 211 is formed with at least two spring fixing projections 213 radially projecting in at least two radial directions (three radial directions in the drawing) from at least two outer peripheral surfaces along the longitudinal direction, So that the body 221 is smoothly engaged with the outer peripheral surface of the central tube body 211.

The guide body 221 is elastically biased to the outside in the radial direction of the center tube body 211 and is spaced apart from the outer circumferential surface of the center tube body 211 by a predetermined distance d, So as to be radially coupled. It is preferable that at least two guide bodies 211 (three in FIGS. 4 to 6) are coupled at an equal angle to each other.

4 to 7 (a), the guide body 221 has a trough shape whose one side is opened, and the open side is coupled to the center tube body 211 so as to face the one side, The spring fixing protrusion 227 of the guide body is formed to protrude from the inner circumferential surface at a position corresponding to the spring fixing protrusion 213 of the center tube body 211 described above. Therefore, both ends of the compression spring 229 are fitted and fixed to the corresponding spring fixing projections 213 and 227 of the central tube body 211 and the guide body 221, thereby guiding the guide body 221 to the outer peripheral surface of the center tube body 211. [ . The upper and lower ends of the guide body 221 are provided with a neck portion 223 extending in the longitudinal direction and having a curved cross section corresponding to the outer peripheral surface shape of the central tube body 211 and a neck portion 223 extending from the end portion of the neck portion 223 211 extending radially outwardly from the outer circumferential surface thereof.

7 (a) to 7 (b), when the guide body 221 is coupled to the center tube body 211 and inserted into the inner tube wall 11, (The bottom surface of the body 221) may be curved or flat formed corresponding to the shape of the inner wall surface 11 of the housing. Therefore, when the guide unit 210 is inserted into the inner wall of the tube, the shape of the contact surface where the outer circumferential surface of the guide body 210 contacts the inner wall surface 11 becomes a long rectangular shape in the longitudinal direction. Further, the outer circumferential surface of the guide body 221 which contacts the inner wall surface 11 of the tubular body may have angled corners. In this case, when the guide unit 210 is inserted into the inside of the tube, the shape of the contact surface where the outer circumferential surface of the guide body 210 contacts the inner tube wall surface 11 is a long straight line in the longitudinal direction.

On the other hand, the outer peripheral edge of the longitudinally opposite ends of the guide body 221 is chamfered or rounded as shown in Figs. 4 and 6. Therefore, when the guide unit 210 is lifted up and down from inside the vessel 10, it is possible to smoothly follow the irregularities and changes in the inner diameter of the inner wall surface 11.

The guide unit 210 may further include a coupling ring 217 that surrounds the outer circumferential surface of the neck portion 223 of the guide body 221 and couples the guide body 221 to the outer peripheral surface of the center tube body 211 have. 7 (b), each of the engaging rings 217 is formed of two ring segments each of which is a semicircular shape and which surrounds the neck portion 223 of the plurality of guide members 221, Nut or rivet to couple the plurality of guide members 221 to the outer circumferential surface of the central tube body 211. At this time, in a state where the two ring pieces are fastened to each other, the inner diameter of the coupling ring 217 is regulated so that the guide body 221 is elastically biased radially outward of the central tube body 211, It plays a role. Accordingly, various coupling rings 217 having different inner diameters can be prepared in various ways, and the coupling ring 217 suitable for the inner diameter of the inner pipe 10 to be cleaned can be tightened to cope with the cleaning of the inner pipe 10 having various diameters . Alternatively, as shown in Fig. 7 (c), the coupling ring 217 'is constituted by one elastic ring having one side opened and corresponding to the tube 10 of various diameters by adjusting the degree of tightening of the bolt / It is possible.

On the other hand, in order to restrict movement along the longitudinal direction (lengthwise direction of the tube) of the guide body 221 coupled to the center tube body 211, the upper and lower ends of the guide body 221 on the outer circumferential surface of the center tube body 211 225 can be provided on the upper and lower sides of the ring-shaped stopper 215. Alternatively, the flanges 203 and 205 provided above and below the guide unit 210 may also serve as the stopper without the separate stopper 215.

When the guiding unit 210 and the cleaning unit 230 described below are inserted into the tube 10 and lifted up and down, the outer circumferential surface of the plurality of guiding bodies 221 radially coupled to the outer circumferential surface of the tube 211 Guide the guide unit 210 and the cleaning unit 230 in a state of being in contact with the inner wall surface 11 of the vessel. At this time, since the plurality of guide bodies 221 are elastically biased and radially spaced from the outer circumferential surface of the center tube body 211 by a predetermined distance d, the inner circumferential wall surface 11, So as to guide stable up / down movement while expanding / contracting in the lateral direction. On the other hand, when the entire tubular cleaning apparatus 200 tries to rotate in synchronization with the rotation of the rotor (impeller) of the cleaning unit 230, which will be described later, the guide body 221 receives a force in the lateral direction (rotational direction) The guide body 221 slides in the lateral direction (that is, the guide unit rotates) because the contact surface shape of the outer circumferential surface of the guide body 221 and the inner circumferential wall surface 11 form a long straight line or a rectangular shape in the longitudinal direction, It is difficult to do. This is like skiing or skating slides easily along the longitudinal direction (direction of travel) but does not slip easily in the width direction of the skis or skate blades.

4 and 8 to 10, a cleaning unit 230 coupled to the lower portion of the guide unit 210 to clean the inner wall surface 11 of the tubular structure will be described.

In the following description, a cleaning unit 230 having a brush for rotating as a cleaning unit will be mainly described. However, it is needless to say that a known cleaning unit such as a nozzle mechanism for jetting a compressed fluid or sand other than a brush may be used.

4, the cleaning unit 230 is shown connected to the guide unit 210 by a connecting means such as a flange 205, but it is also possible to connect the flange 205 to the flange 209 without the flange 205 and the intermediate connecting tube 207 Or may be directly connected to the center tube body 211 of the guide unit 210. [

The cleaning unit 230 includes an impeller 231, a housing block 237, and a brush 245, which are largely rotatable, as shown in Figs.

The impeller 231 includes an impeller shaft 233 and an impeller blade 235 connected to the outer circumferential surface of the impeller shaft 233 at an angle and is rotatably coupled to the inside of the housing block 237.

The housing block 237 has an intermediate connecting pipe 207 or a central tube body 211 of the guide unit 210 connected to the upper end thereof and rotatably receiving the impeller 231, 237d, 237d, and 237d, and are stacked up and down by fastening means such as a bolt 238 and a nut 240, and assembled. The housing block 237b directly above the impeller 231 is formed with a fluid inflow hole 239 through which the compressed fluid flows eccentrically from the central axis and a housing block 237d directly below the impeller 231, And a fluid outlet hole 241 through which the compressed fluid flows out is formed eccentrically from the central axis. The compressed fluid supplied by the center pipe 211 of the intermediate connecting pipe 207 or the guide unit 210 flows into the housing block 237c through the fluid inflow hole 239 and impinges on the impeller blade 235 The impeller 231 is rotated and flows out through the fluid outlet hole 241 to be supplied to the inside of the tube 10. Although the impeller blades 235 are obliquely connected to the impeller shaft 233, the impeller blades 235 may be connected to the impeller shaft 233 such that the positional relationship between the fluid inlet holes 239 and the fluid outlet holes 241 The flow of the fluid from the transverse direction is generated, so that the impeller can rotate.

A flow rate regulating member 243 for regulating the rotational speed or the rotational force of the impeller 231 may be inserted into the lower end of the fluid outlet hole 241 of the housing block 237d by adjusting the flow rate of the fluid.

The brush 245 is coupled to the lower end of the impeller shaft 233 and is rotatable according to the rotation of the impeller 231.

On the other hand, Fig. 10 shows a modification of the cleaning unit. The cleaning unit 230 'of Fig. 10 differs from that described with reference to Figs. 8 and 9 in the structure of the rotor. That is, the cleaning unit 230 'of the modified example includes a rotor 231' of a spray nozzle structure which is rotatably coupled to the inner cavity of the housing 237 'to which the compressed fluid is supplied through a bearing 247 or the like . A fluid outlet hole 241 ', which is a nozzle for spraying the compressed fluid in the lateral direction, is formed in a portion of the rotor 231' exposed to the lower portion of the housing 237 '. The fluid outlet hole 241 'is formed to be capable of injecting the compressed fluid obliquely with respect to the inner wall surface 11 so that the reaction of the compressed fluid injected obliquely to the inner wall surface 11 causes the rotor 231 ') Is rotated. A brush 245 'is coupled to the outer peripheral surface of the rotor 231' between the fluid outflow holes 241 '.

Therefore, according to the cleaning unit 230 'of FIG. 10, by supplying the compressed fluid such as compressed air or water or the compressed fluid with the sand, the effect of cleaning the tubular inner wall surface 11 by the injection of compressed fluid or sand At the same time, a cleaning effect by the rotating brush 245 'can be obtained together. Of course, it is also possible to omit the brush 245 'in the cleaning unit 230' of FIG.

As described above, according to the tubular cleaning apparatus 200 of the present embodiment, the guide unit 210 which expands / contracts in the radial direction prevents the cleaning units 230 and 230 ' The elevating operation can be performed at the same time, and the working efficiency is excellent.

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 to be limited to the details thereof and that various changes and modifications will be apparent to those skilled in the art. And various modifications and variations are possible within the scope of the appended claims.

10: groundwater observation 11: inner wall
12: Joint 100: Tubular cleaning device
120: sealing unit 150: compressor
160: Compressed fluid supply pipe 161:
162: exhaust passage 170: valve
180: Pressure gauge

Claims (13)

delete delete delete delete delete delete delete delete delete A device for cleaning groundwater wells inserted into a groundwater well,
A cleaning unit connected to a fluid supply pipe for supplying a pressurized fluid and using the pressurized fluid to rotate around a central axis of the underground water well to clean the inner wall surface of the well; And
And a guide unit coupled to an upper portion of the cleaning unit to guide the lifting and lowering of the cleaning unit and to prevent the fluid supply pipe from rotating in synchronization with rotation of the cleaning unit,
Wherein a diameter of the guide unit is larger than a diameter of the cleaning unit,
Wherein the guide unit comprises: a center tube having a hollow tube shape communicating with the fluid supply tube; And at least two guide bodies which are longer than the transverse length in the longitudinal direction and are biased radially outward of the central tube body and are radially coupled to the outer circumferential surface of the central tube body,
Wherein when the cleaning unit and the guide unit are inserted into the groundwater well, the outer circumferential surface of the guide body of the guide unit is in contact with the inner wall surface of the well, the shape of the contact surface is a straight line or a rectangle long in the longitudinal direction of the well,
Wherein the central tube body is formed with at least two spring fixing projections radially projecting in at least two radial directions from at least two outer peripheral surfaces along the longitudinal direction,
Wherein the guide body has a trough shape whose one surface is open and a spring fixing protrusion of the guide body is protruded and formed on an inner circumferential surface at a position corresponding to the spring fixing protrusion of the central tube body when the one opened surface is arranged to face the center tube body Wherein the guide body is coupled to the central tube body by fixing both ends of the compression spring to the corresponding spring fixing projections of the central tube body and the guide body. 11. The method of claim 10,
Wherein the guide unit further comprises a coupling ring for coupling the guide body to the center tube body while regulating a range in which the guide body is elastically biased radially outward of the center tube body to expand,
Wherein the coupling ring is adjustable in an extendable range of the guide body. delete 11. The method of claim 10,
Wherein the outer circumferential edge of the longitudinally opposite ends of the guide body is chamfered or rounded.
KR1020150050444A 2015-04-09 2015-04-09 Cleaning Method and Apparatus of Tube Well KR101589264B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101730972B1 (en) * 2016-07-21 2017-04-27 효림산업주식회사 Multi-Functional Well Using Hydraulic Packer
KR102306338B1 (en) * 2021-02-05 2021-10-01 김경수 A method to excavation and expand underground tunnel for a catchment of a bedrock aquifer and an apparatus to expand underground tunnel for a catchment of a bedrock aquifer

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11148295A (en) * 1997-11-18 1999-06-02 Techno Core:Kk Packer system
KR100714431B1 (en) * 2000-01-14 2007-05-07 조희남 Apparatus and method for cleaning well using brush and washing-water
JP2011220079A (en) * 2010-04-14 2011-11-04 Central Res Inst Of Electric Power Ind Encapsulation device
KR101345722B1 (en) 2011-11-30 2013-12-30 부산대학교 산학협력단 Apparatus for cleaning well using brush
KR101394162B1 (en) * 2012-12-27 2014-05-14 방병훈 System of cleaning for the tube well and discharging of contaminants of tube well

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11148295A (en) * 1997-11-18 1999-06-02 Techno Core:Kk Packer system
KR100714431B1 (en) * 2000-01-14 2007-05-07 조희남 Apparatus and method for cleaning well using brush and washing-water
JP2011220079A (en) * 2010-04-14 2011-11-04 Central Res Inst Of Electric Power Ind Encapsulation device
KR101345722B1 (en) 2011-11-30 2013-12-30 부산대학교 산학협력단 Apparatus for cleaning well using brush
KR101394162B1 (en) * 2012-12-27 2014-05-14 방병훈 System of cleaning for the tube well and discharging of contaminants of tube well

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101730972B1 (en) * 2016-07-21 2017-04-27 효림산업주식회사 Multi-Functional Well Using Hydraulic Packer
KR102306338B1 (en) * 2021-02-05 2021-10-01 김경수 A method to excavation and expand underground tunnel for a catchment of a bedrock aquifer and an apparatus to expand underground tunnel for a catchment of a bedrock aquifer

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