KR20140092466A - Traction system for reparing conduit in non-excavation manner - Google Patents

Traction system for reparing conduit in non-excavation manner Download PDF

Info

Publication number
KR20140092466A
KR20140092466A KR1020120156817A KR20120156817A KR20140092466A KR 20140092466 A KR20140092466 A KR 20140092466A KR 1020120156817 A KR1020120156817 A KR 1020120156817A KR 20120156817 A KR20120156817 A KR 20120156817A KR 20140092466 A KR20140092466 A KR 20140092466A
Authority
KR
South Korea
Prior art keywords
liner
retractor
pipe
piping
monitor device
Prior art date
Application number
KR1020120156817A
Other languages
Korean (ko)
Inventor
임창길
Original Assignee
주식회사 구마이엔씨
주식회사 구마건설
주식회사 구마엔지니어링
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 구마이엔씨, 주식회사 구마건설, 주식회사 구마엔지니어링 filed Critical 주식회사 구마이엔씨
Priority to KR1020120156817A priority Critical patent/KR20140092466A/en
Publication of KR20140092466A publication Critical patent/KR20140092466A/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
    • F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
    • F16L55/1652—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section the flexible liner being pulled into the damaged section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/18—Appliances for use in repairing pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2101/00—Uses or applications of pigs or moles
    • F16L2101/30—Inspecting, measuring or testing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2101/00—Uses or applications of pigs or moles
    • F16L2101/50—Pulling cables or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sewage (AREA)

Abstract

A non-drilled water and sewer repair retraction system is provided. A non-drilled water drainage repair traction system according to an embodiment of the present invention includes a retractor coupled to one end of a liner including a thermosetting resin to move a liner to a predetermined position inside a pipe, And driving means for controlling the position of the liner by winding the connected wire, wherein the retractor includes a camera module for photographing the image of the liner inside the pipe to the outside.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a traction system for repairing un-

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a pulling system for repairing unrepaired water supply and drainage, and more particularly, to a pulling watering system for repairing unrepaired water supply and sewage, which can improve maintenance efficiency and shorten repairing time.

With urbanization, various pipelines such as water supply and drainage pipes and gas pipes were buried in the basement, and these pipes gradually became aged and corrosion occurred over time. It is an important issue to repair old pipes due to the leakage of water and sewage, pollution of drinking water and leakage of gas due to corrosion of piping.

In the case of excavation works to repair water pipes or gas pipes buried underground, the cost of social loss such as enormous construction cost, heavy traffic, safety accidents and environmental problems will increase. As a result, the unreinforced water supply and sewerage repair method has begun to be developed. Especially in Korea, the width of the road is narrow and the bending part is many, and there are many joints of the auxiliary facilities such as the branch pipe connection and the manhole. In addition, since the depth of the piping is deep and the working environment is poor, many non-digging piping repairing methods are advantageous because there are many sites that are used for the removal of obstacles and the like.

As unreinforced water and sewerage repair methods, there are slip lining, close fit pipe lining, fold and form lining, spirally wound pipe lining, and cured in place pipe ). Recently, reinforced tube hardening method has been attracting the most attention, and various technologies are being developed in various countries around the world.

In the reinforcement tube curing method, one end of the sealed liner is connected to the retractor, the retractor is moved to the inside of the pipe, the liner is inserted into the pipe, and then the expansion and hardening are performed. In this process, And it is required to provide a traction method that prevents the liner from twisting or twisting phenomenon.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a non-drilling water supply and drainage repair traction system capable of rapidly inserting a piping repair liner at a desired position in a pipe, .

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a traction system for repairing unscored water and wastewater, comprising: a liner including a thermosetting resin; a retractor coupled to one end of the liner to move the liner to a predetermined position inside the piping; And a winch disposed outside the pipe and winding a wire connected to the retractor to control the position of the liner. The retractor includes a camera module for photographing the image of the liner inside the pipe.

According to the present invention as described above, the unthrottled water supply and drainage repair towing system has the following effects.

When the liner for repairing the piping is moved to the inside of the piping by the retractor, the camera module and the acceleration sensor can be used in the retractor to precisely move the work, and the twist of the liner can be prevented.

Since the retractor can be controlled while checking the image and acceleration / tilt information obtained by the camera module from the outside in real time, it is possible to perform a rapid operation, and even if the retractor is overturned, have.

1 is a perspective view of a piping constructed by a non-excavated water supply and drainage repair method according to the present invention.
FIG. 2 is a cross-sectional view taken along the line II-II 'of FIG. 1; FIG.
3 and 4 are views schematically showing a work according to the unreduced water and sewage repairing method according to the embodiments of the present invention.
FIG. 5 is a block diagram showing a configuration of a non-excavated water supply and drainage repair towing system according to an embodiment of the present invention.
6A is a schematic view of a retractor constituting a traction system for repairing a non-drilled water supply and drainage system according to an embodiment of the present invention.
Figs. 6B and 6C are views showing the coupling structure of the retractor and the liner of Fig. 6A. Fig.
FIGS. 7 and 8 are diagrams illustrating a data transmission / reception process of a traction system for repairing a non-excavated water and wastewater according to an embodiment of the present invention.
FIG. 9 is a diagram showing an example of a monitor image of a traction system for repairing a non-drilled water supply and drainage system according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

Hereinafter, piping constructed by the unreduced water supply and drainage repair method of the present invention will be described in detail with reference to FIGS. 1 and 2. FIG. Here, FIG. 1 is a perspective view of a pipeline constructed by the unreduced water supply and drainage repair method of the present invention, and FIG. 2 is a sectional view taken along line II-II 'of FIG.

In the unreinforced water supply and sewer repairing method applied to the present invention, a liner (L) including a nonwoven fabric impregnated with resin is inserted into a piping 20 to be repaired and cured to form the inside of the piping 20 And is reinforced with the liner (L) to repair the broken pipe (20).

Referring to FIGS. 1 and 2, a liner L is inserted into the inner side of the broken pipe 20. The liner L serves to prevent fluid such as sewage, water, and gas from flowing out of the piping 20 through the broken portion 25 of the piping 20 and to prevent foreign matter from flowing into the piping 20 . The liner L includes a nonwoven fabric P impregnated with a resin and a vinyl C surrounding the outer side of the nonwoven fabric P. Then, the liquid resin is impregnated into the double-folded nonwoven fabric (P). The inner tube of the pipe 20 is formed by covering the outer surface of the nonwoven fabric P impregnated with the resin with the vinyl C and inserting it into the pipe 20 and then hardening the resin.

The vinyl C covers the nonwoven fabric P when the air is filled in the nonwoven fabric P and the nonwoven fabric P expands. That is, the cover surrounding the nonwoven fabric P is not limited to the vinyl (C), and various materials such as polypropylene and polystyrene which can be used as the covering material of the nonwoven fabric P may be used. Particularly, it is possible to use a cover formed of a heat insulating material so that the resin can be cured even at a very low temperature depending on the construction environment.

The unreduced water and sewage repairing method using the liner L will be described in detail later.

3 and 4, an unreinforced water supply and drainage repairing method according to an embodiment of the present invention will be described. 3 and 4 are views schematically showing a work according to the unreduced water and sewage repairing method according to the embodiments of the present invention.

Specifically, referring to FIG. 3, as a preliminary preparation process for repairing the piping 20, the inside of the piping 20 is irradiated to check whether the piping 20 is damaged, and a repair position is determined. As a method of irradiating the interior of the piping 20, a robot equipped with an endoscope or a camera may be inserted to visually confirm a damaged part. The endoscope or the robot may be inserted through the manholes 40a and 40b, and if necessary, a part of the pipe 20 may be inserted and inserted.

If it is determined that the piping 20 needs to be repaired during the irradiation of the piping 20, the inside of the piping 20 may be cleaned for a repair work. Specifically, the upstream pipe 21 may be blocked by the water receiving apparatus 60 in order to prevent the introduction of water or sewage into the piping 20 to be operated. Then, the interior of the pipe 20 can be cleaned by spraying high-pressure cleaning water into the pipe 20 using a high-pressure injector or the like. The inside of the pipe 20 can be cleanly cleaned by sucking foreign substances or sediments together with the spraying of the washing water by the high-pressure injector.

In addition, it is possible to remove obstacles that may interfere with the operation of the inside of the piping 20 for repairing the piping 20. Here, the obstacle obstructing the work means that the protruding portion of the branch pipe 30 protrudes into the inside of the pipe 20 to form the concave and convex on the inner surface of the pipe 20. In order to insert the liner (see L in Fig. 1A) into the pipe 20, it must be maintained uniformly on the inner surface. At this time, the operation of removing the obstacle can be changed depending on the diameter of the pipe 20. That is, the maintenance of the piping 20 having a diameter enough for the operator to directly enter can be performed by the operator, and the diameter can not be entered by the operator, or the internal environment is dangerous. If there is no robot, the work robot can be used. A cutting tool may be attached to the work robot to remove any obstacle inside the pipe 20.

Then, the liner L for repairing the pipe 20 can be manufactured in the field, and the previously prepared liner L can be supplied. If the length or width of the liner L required in the course of the above-described piping 20 irradiation is determined, the liner L may be directly manufactured in the form of a fitting in the field. At this time, the liner (L) can be manufactured by using the liner manufacturing apparatus (10). The liner manufacturing apparatus 10 can be used by being mounted on a moving means such as a vehicle, and can be used after being fixedly installed in the field. The liner L can be manufactured immediately before insertion into the pipe 20 in consideration of the pot life of the resin. The manufactured liner (L) can be bound to the manifold (90). The liner (L) may include a nonwoven fabric impregnated with a thermosetting resin.

Referring to FIG. 4, the liner L is inserted into the pipe 20. The liner L can be pulled into the underground pipe 20 by fixing the liner L directly to the retractor 50 without the manifold 90 being fastened as shown, And may be inserted into the piping 20 by the retractor 50 connected to the manifold 90. The liner L previously manufactured in the field can be connected to the retractor 50 and inserted into the pipe 20 but the liner manufacturing equipment 10 is installed on the site so that the pipe 20 ). ≪ / RTI > That is, the liner L is manufactured in the apparatus for manufacturing a liner L and is directly connected to the manifold 90 and / or the retractor 50 without being taken up by a separate collecting unit (not shown) ). ≪ / RTI > In this way, the working time can be shortened. That is, one end of the liner L may be coupled to the retractor 50 to move the liner L to a predetermined position inside the pipe.

The retractor 50 further includes a camera module 52 so that the inside of the pipe 20 and the movement of the liner L can be externally monitored and the image captured by the camera module 52 is transmitted to an external monitor device (71).

That is, the retractor 50, which is coupled with one end of the liner L and moves the liner L to a predetermined position inside the pipe, is inserted into the repair section, and the retractor 50 Can be controlled.

In addition, the retractor 50 is provided with a sensor capable of measuring the tilt or acceleration information of the retractor 50, so that information sensed by the sensor can be transmitted to the outside. If the retractor 50 is overturned, it can be quickly detected from the outside and measures can be taken. That is, the retractor 50 can be controlled based on the inclination information of the liner L inside the pipe.

The retractor 50 is connected to a driving means such as a winch 72 disposed inside or outside the pipe 20 by connecting means such as a wire, so that the moving direction and the moving speed can be controlled.

The winch 72 and the monitor device 71 may be integrally formed as shown in the figure but the present invention is not limited thereto and the winch 72 can be controlled by an operator who controls the winch 72, (72) may be arranged close to the monitor device (71).

The manifold 90 is connected to both ends of the liner L and the manifold 90 is connected to both ends of the liner L when the liner L in which the manifold 90 is not fastened is inserted into the predetermined pipe 20, Air or compressed air is injected through the liner (L) to expand the liner (L). At this time, the air injected into the liner L expands the liner L to closely contact the liner L inside the pipe 20, and keeps the liner L in the same shape as the pipe 20. When the low temperature curable resin is used for the liner L, the resin impregnated in the nonwoven fabric may be first cured by injecting air at room temperature into the liner L. At this time, the manifold 90 may be connected to one end of the liner L.

The fluid may include, but is not limited to, air or water vapor, and any fluid suitable for expanding or curing the liner (L) may be used.

The expanded liner L may then be maintained for a period of time to cure the resin contained in the liner (L). The curing time of the resin may vary depending on the thickness and diameter of the liner (L), and may vary depending on the composition ratio of the materials contained in the resin. The curing may be performed at a temperature of 100 to 180 ° C, and may be a method of injecting high temperature steam into the liner L through the manifold 90.

When the high-temperature steam is injected through the manifold 90 provided at both sides of the liner L along the fluid supply pipe in the fluid distributor (not shown), the fluid circulates in a certain direction in the liner L, To gradually cure the liner (L), and the fluid circulation can be repeated for a predetermined period of time to complete the curing operation. That is, the fluid can be injected into both ends of the liner (L), and the circulation direction can be switched at the center side of the liner (L).

5 to 6C, a description will be given of a traction system for repairing unreduced water and sewage according to an embodiment of the present invention. FIG. 5 is a block diagram showing the construction of a non-drilled water supply and drainage repairing traction system according to an embodiment of the present invention. FIG. 6A is a perspective view of a pulling- 6B and 6C are views showing a coupling structure of the retractor and the liner of FIG. 6A. FIG.

Referring to FIGS. 5 and 6A, a non-drilled water and sewerage repair traction system according to an embodiment of the present invention is coupled to one end of a liner L including a thermosetting resin, And a driving means (72) for controlling the position of the liner (L) by winding a wire disposed on the outside of the pipe and connected to the retractor (50), wherein the retractor (50) And a camera module 52 for capturing an image of the liner L inside the pipe.

The retractor 50 may include a driving body 51 connected to a predetermined body and the body to facilitate movement of the retractor 50. The driving body 51 may be a circular wheel, but is not limited thereto, and may be replaced with a driving body of another shape, for example, a caterpillar or the like. The driving body 51 may be rotated by friction with the inner surface of the pipe, and may have a driving force by itself.

The camera module 52 may be disposed at an upper portion of the body of the body so as to acquire an image of the inside of the pipe 20 into which the retractor 50 is inserted and the obtained image is transmitted to the controller 53 And can be transmitted to the external monitor device 71 side through a predetermined conversion operation. The retractor 50 can communicate with the monitor device 71 by wire or wireless to transmit and receive data.

In order to secure the field of view of the camera module 52 and to eliminate a dead angle, the camera module 52 may be provided at a predetermined height at the top of the body.

The control unit 53 can control the entire configuration of the retractor 50 and can change the photographing direction or the angle of the camera module 52 by an external control signal or the like.

A coupling part 54 to which one end of the liner L is coupled may be formed at one side of the body of the retractor 50. [ The fastening part 54 may be formed by cutting or bending one end of the body as shown in the drawing, but the fastening part 54 may be formed in a manner that a predetermined frame is coupled to the body.

The length or width of the fastening portion 54 can be varied and the width of the fastening portion 54 can be varied according to the width or diameter of the liner L so that the liner L is fastened regardless of the type of the liner L. [ Section 54, as shown in FIG.

6B and 6C, the liner L is inserted into the fastening groove 54b of the fastening portion 54 and can be wound on the fastening bar 54a and inserted into the fastening groove 54b And a binding hole 56 for binding one side of the liner L that is made of the same material.

Hereinafter, a traction and monitoring process of a non-drilled water drainage repair tow system according to an embodiment will be described with reference to FIGS. 7 to 9. FIG. FIGS. 7 and 8 are diagrams illustrating a data transmission / reception process of the untrimmed water supply and drainage repair towing system according to an embodiment of the present invention. FIG. FIG. 7 is a diagram showing an example of a monitor image of FIG.

7, the retractor 50 can be pulled in a predetermined direction by the drive means 72, for example a winch, in the state where the liner L is engaged to the retractor 50, Can be controlled within the piping. In this process, the camera module 52 continuously captures the state of the inside of the pipe, the alignment state of the liner L, and the like, and provides the obtained image information to the external monitor device 71. That is, the image photographed by the camera module 52 can be transmitted to the monitor device 71 outside the pipe.

The retractor 50 may further include an acceleration sensor 57 for externally providing tilt information of the liner L or the retractor 50 itself in the piping.

8, when the retractor 50 is overturned by an obstacle in the process of pulling the liner L and a warp region T is formed on a part of the liner L, Since the image is transferred to the apparatus 71, the operator can grasp information that the retractor 50 has been rolled over or the liner L has been twisted. However, even if the upper and lower retractors 50 are overturned, May not be able to recognize it. Therefore, the retractor 50 may be provided with an acceleration sensor 57 to detect acceleration information and / or tilt information of the retractor 50 when the retractor 50 is overturned or largely tilted to an external monitor device 71 or other external device Lt; / RTI >

9, the tilt information can be transmitted to the monitor device 71. In the first area 71a of the monitor device 71, the image obtained from the camera module 52 is displayed, The slope information or the acceleration information may be displayed in the second area 71b of the display unit 71. [

The position of the liner L in the piping can be precisely controlled by pulling the liner L for repairing the piping using the retractor 50 constructed as described above.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

10: piping maintenance liner manufacturing apparatus 20: piping
40a, 40b: Manhole 50: Retractor
51: driving body 52: camera module
53: control unit 54:
56: coupling member 57: acceleration sensor
60: order device 90: manifold

Claims (9)

A retractor coupled to one end of the liner including the thermosetting resin to move the liner to a predetermined position within the tubing; And
And driving means for controlling the position of the liner by winding a wire connected to the retractor and disposed outside the pipe,
Wherein the retractor includes a camera module for capturing an image of the liner inside the piping to the exterior. The method according to claim 1,
And the image is transmitted to a monitor device outside the piping. 3. The method of claim 2,
Wherein the retractor further comprises an acceleration sensor for providing tilt information of the liner inside the pipe to the outside. The method of claim 3,
Wherein the tilt information is transmitted to the monitor device, the image is displayed in a first area of the monitor device, and the tilt information is displayed in a second area of the monitor device. The method according to claim 1,
Wherein the fluid comprises air or water vapor. The method according to claim 1,
Wherein the retractor includes a drive body rotated by an inner surface of the pipe. The method according to claim 1,
And a fastening portion to which the one end of the liner is coupled is formed at one side of the retractor. 8. The method of claim 7,
Wherein the length of the fastening portion is variable. 8. The method of claim 7,
The liner is inserted into the fastening groove of the fastening portion,
Further comprising a coupling for coupling one side of the liner inserted into the coupling groove.
KR1020120156817A 2012-12-28 2012-12-28 Traction system for reparing conduit in non-excavation manner KR20140092466A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120156817A KR20140092466A (en) 2012-12-28 2012-12-28 Traction system for reparing conduit in non-excavation manner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120156817A KR20140092466A (en) 2012-12-28 2012-12-28 Traction system for reparing conduit in non-excavation manner

Publications (1)

Publication Number Publication Date
KR20140092466A true KR20140092466A (en) 2014-07-24

Family

ID=51739101

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120156817A KR20140092466A (en) 2012-12-28 2012-12-28 Traction system for reparing conduit in non-excavation manner

Country Status (1)

Country Link
KR (1) KR20140092466A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101980693B1 (en) * 2018-10-05 2019-05-22 주식회사 에이이 Automatic Guide Vehicle Capable of Retracting Liner Tube for Plumbing Repair and Non-excavated Pipe Reparing Method Using The same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101980693B1 (en) * 2018-10-05 2019-05-22 주식회사 에이이 Automatic Guide Vehicle Capable of Retracting Liner Tube for Plumbing Repair and Non-excavated Pipe Reparing Method Using The same

Similar Documents

Publication Publication Date Title
CA2868039C (en) System for renovating a sewer manhole
KR101245258B1 (en) Non-digging repair method and apparatus for repairing linkage between branch-pipe and main-pipe
KR101157080B1 (en) Packer tilting apparatus and method for lateral lining(pal)
KR100594825B1 (en) A method for repairing a sewer pipe using liner
KR101474298B1 (en) System and method for reparing conduit in non-excavation manner
KR101267432B1 (en) Non-digging repair method and apparatus for repairing linkage between branch-pipe and main-pipe
KR101495705B1 (en) Fluid distribution device for reparing conduit in non-excavation manner
CN107672155A (en) A kind of Pneumatic turnover equipment and renovation technique for pipeline rehabilitation
KR101414235B1 (en) Reparing method for conduit using changeable reparing device
KR101935402B1 (en) Pipeline repairing method
KR101265736B1 (en) Structure of non-woven fabric for repairing pipe, manufacturing equipment of liner for repairing pipe and method of repairing pipe by non-excavation
KR20140092466A (en) Traction system for reparing conduit in non-excavation manner
KR101524598B1 (en) Manifold device for reparing conduit in non-excavation manner
KR101245259B1 (en) Non-digging repair method and apparatus for repairing linkage between branch-pipe and main-pipe
KR100646802B1 (en) Height controlable packer for repairing a sewage pipe
KR101003467B1 (en) Non-excavation repairing apparatus for long section of sewer pipe using carriage and packer and methods for the same
CN207327592U (en) A kind of Pneumatic turnover equipment for pipeline rehabilitation
KR20050072863A (en) A not-digging repair method for pipe connetion part, damage part, pipe sill
KR100817852B1 (en) Construction vehicle for water supply or drain pipe and a construction method using the same
KR200416733Y1 (en) Conduit repair system equipment for tranchless construction method
KR100775008B1 (en) Apparatus for removing pleat of close-fit pipes lining system and method thereby
KR101495707B1 (en) Conduit reparing device having changeable diameter
KR100747725B1 (en) Repairing apparatus for a branch pipe of a drain pipe
KR101523270B1 (en) A Water Turning Method and Repairing Method for Pipe Lines with Non-Excavation
KR101495706B1 (en) Extendable apparatus for reparing conduit

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application