KR20090038192A - A vacuum-tube for repairing pipeline and a method for repairing pipeline - Google Patents

A vacuum-tube for repairing pipeline and a method for repairing pipeline Download PDF

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Publication number
KR20090038192A
KR20090038192A KR1020070103560A KR20070103560A KR20090038192A KR 20090038192 A KR20090038192 A KR 20090038192A KR 1020070103560 A KR1020070103560 A KR 1020070103560A KR 20070103560 A KR20070103560 A KR 20070103560A KR 20090038192 A KR20090038192 A KR 20090038192A
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KR
South Korea
Prior art keywords
vacuum tube
pipeline
absorbent material
tube
resin absorbent
Prior art date
Application number
KR1020070103560A
Other languages
Korean (ko)
Inventor
박병권
Original Assignee
(주)로터스지이오
주식회사 제일엔지니어링
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 (주)로터스지이오, 주식회사 제일엔지니어링 filed Critical (주)로터스지이오
Priority to KR1020070103560A priority Critical patent/KR20090038192A/en
Publication of KR20090038192A publication Critical patent/KR20090038192A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/26—Lining or sheathing of internal surfaces
    • B29C63/34—Lining or sheathing of internal surfaces using tubular layers or sheathings
    • B29C63/36—Lining or sheathing of internal surfaces using tubular layers or sheathings being turned inside out
    • 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
    • F16L55/1651—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 everted
    • 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
    • F16L55/1654—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 and being inflated
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

A vacuum tube inserted in a pipeline and inflated by inverting the tube lining material impregnated with the curable resin therein in a state in which air therein is removed, wherein the vacuum tube has a predetermined length and is provided on the outer peripheral surface thereof. Tubular resin absorbent material coated with a plastic film; And an auxiliary member installed in the longitudinal direction of the resin absorbent material inside the tubular resin absorbent material and including an auxiliary member to allow the vacuum pressure to act as a whole in the resin absorbent material when the inside of the resin absorbent material is vacuumed. Is initiated.

Description

A vacuum-tube for repairing pipeline and a method for repairing pipeline}

The present invention relates to a vacuum tube for repairing an old pipe buried underground, such as sewerage, water supply, gas, and a pipeline repair method using the same.

In general, pipelines through which fluids, such as water and sewage pipes, flow should be maintained due to corrosion or aging. Conventionally, conduits buried underground have been replaced, but such a conduit replacement method is, for example, where a road is located. Traffic congestion may occur, and after digging the road, there was a problem such as replacing the old conduit with a new conduit and then laying the road again and applying new asphalt.

In order to alleviate this inconvenience, recently, a method of simply maintaining and repairing the pipeline without replacing the pipeline, that is, digging a road or blocking traffic flow, has been proposed, and one of them is a method using lining material. . One example thereof is disclosed in Japanese Patent Application No. 2002-312926 (Prior Art).

According to the above-mentioned conventional technique, a tubular resin absorbent material having a plastic film coated on its outer surface is inserted into a pipe line, and the inside of the tubular resin absorbent material is formed from a vacuum hose which is arranged inside (full length) from one end of a vacuum tube made of the tubular resin absorbent material. The air is removed and the tube lining material impregnated with the liquid curable resin is reversely inserted from the other end. In accordance with the progress of the reversal insertion, the vacuum hoses arranged over the entire length of the vacuum tube are moved to the other end, and the tube lining material is reversely inserted into the tubular resin absorbent material in which the air escapes. By this method, since air can be removed from the tube lining material during the reverse insertion and removed, the tube lining material after hardening becomes a high quality tube lining material from which air escapes and is removed. In this way, the pipeline is being repaired.

On the other hand, according to the conventional technique, a vacuum hose was arranged in the inside (full length) of the vacuum tube made of the tubular resin absorbent material, and the vacuum hose had to be moved in accordance with the inversion of the tube lining material. However, as the air escapes, the vacuum tube made of the tubular resin absorbent material becomes flat and has a problem of fastening the vacuum hose, which makes it difficult to move the vacuum hose.

The present invention was devised to solve the above problems, and the air is easily escaped by arranging an auxiliary member made of glass fiber material or rubbing cloth instead of the vacuum hose in the inside (full length) of the vacuum tube made of the tubular resin absorbent material. It is an object of the present invention to provide an improved pipeline repair vacuum tube and a pipeline repair method using the same to easily extract air from the vacuum tube.

The pipeline repair vacuum tube of the present invention for achieving the above object is inserted into the pipeline and in the state in which the air therein is removed, the tube lining material impregnated with the curable resin is inserted into the pipeline and expanded therein. CLAIMS What is claimed is: 1. A vacuum tube installed in close contact, comprising: a tubular resin absorbent material having a predetermined length and coated with a plastic film on an outer circumferential surface thereof; And an auxiliary member installed inside the tubular resin absorbent material in a longitudinal direction of the resin absorbent material, wherein the auxiliary member allows the vacuum pressure to act as a whole in the resin absorbent material when the inside of the resin absorbent material is vacuumed.

Here, the auxiliary member, preferably comprises a chopped strand mat having a glass fiber material.

In addition, the auxiliary member may include a rubbing cloth.

The auxiliary member may be provided in the longitudinal direction of the resin absorbent material, and a plurality of auxiliary members may be provided at a predetermined interval as a band shape.

In addition, the auxiliary member may have an outer diameter smaller than the inner diameter of the resin absorbent and have a tube shape.

In addition, the resin absorbent material is preferably formed of a nonwoven fabric containing plastic fibers.

Inserting the pipeline repair vacuum tube of claim 1 into a pipeline to be repaired; Closing one end of the inserted vacuum tube and then extracting air therein; And inverting and inserting the tube lining material impregnated with the liquid resin through the other end of the vacuum-depleted vacuum tube.

Here, it is preferable to include the step of further impregnating the extra resin material to be absorbed in the vacuum tube in the tube lining material which is reversely inserted into the vacuum tube.

The vacuum tube for repairing a pipeline according to the present invention is a vacuum tube in which an auxiliary member including a chopped strand mat or a rubbing cloth composed of glass fibers is attached or compounded inside a tubular resin absorbent material, and the chopped rubbing of hard glass fibers is superimposed on each other. The mat and fabric of the structure take over the role of a vacuum hose because they are not consolidated by vacuum force. If the auxiliary members are arranged in the entire length of the vacuum tube, the air of the entire vacuum tube can be taken out by extracting air from one end of the vacuum tube with the vacuum pump. In addition, since the mat or the cloth is a sheet or a band-like body, even if it is cured by being interposed with the vacuum tube and the tube lining material as it is, the convex shape is not formed on the inner surface.

In addition, the auxiliary member made of glass fiber has a great effect of using a mat or cloth of glass fiber as a passage for vacuum even in the point of being used as a reinforcing material of the liquid curable resin and also for the purpose of reinforcing the tube lining material.

1 is a cross-sectional view showing a vacuum tube for repairing a pipeline according to an embodiment of the present invention.

Referring to FIG. 1, a pipeline repair vacuum tube 1 according to an embodiment of the present invention includes a tubular resin absorbent 10 and an auxiliary member 20 installed inside the resin absorbent 10. Equipped.

The resin absorbent material 10 is formed on the outer circumferential surface of the plastic film 11 to a predetermined thickness.

The resin absorbent material 10 is preferably a nonwoven fabric made of a plastic fiber material. The plastic film 11 is fused and coated on the outer surface of the resin absorbent material 10.

The auxiliary member 20 is bonded to the inner surface of the resin absorbent material 10 as described above by a welding or bonding method. Thus, both ends are sealed so that the resin absorbent material 10 may be tubular in the longitudinal direction in a state in which the auxiliary member 20 is coupled to the inner surface of the resin absorbent material 10. The sealing part 10a of the resin absorbent material 10 can be sealed using the sealing chamber 13. The outer surface of the seal 13 is welded and sealed with a ribbon tape 15 of a plastic film.

Here, the plastic fiber which is the material of the resin absorbent material 10 may mainly be polyester fiber, and the plastic film 11 may be coated with a material such as polyethylene. After the resin absorbent 10 is sealed using the sealing chamber 13 as described above, the sealing portion 10a is welded and sealed by the plastic film 15, and then thermosetting such as an unsaturated polyester resin or an epoxy resin. It is formed by impregnating a resin.

The thickness of the resin absorbent material 10 is preferably produced in the range of 1.0mm to 10.0mm. The resin absorbent material 10 is impregnated by receiving the liquid curable resin impregnated in the pipeline lining material 103 by a pipeline construction method described later, and together with the pipeline lining material 103, the curing finish plate after curing. Will be full thickness.

The auxiliary member 20 is provided on the inner surface of the tubular resin absorbent 10 in a plurality of predetermined intervals in the form of a strip of a predetermined width in the longitudinal direction of the resin absorbent 10. As the installation method of such an auxiliary member 20, a complex method such as needle punching processing can be used. In addition, the auxiliary member 20 may be attached to the inner surface of the resin absorbent material 10 using an adhesive or a burner or the like by a bonding or welding method.

The auxiliary member 20 as described above is preferably made of a shopped strand mat or a rubbing cloth made of glass fiber.

In addition, as shown in Figure 2, in the case of the vacuum tube 2 according to another embodiment of the present invention, the auxiliary member 20 'installed inside the tubular resin absorbent material 10 is characterized in that the tubular shape There is this. The auxiliary member 20 ′ may be manufactured in a tubular shape by sealing the suture portion 21 using the suture chamber 23. The auxiliary member 20 ′ may be formed of the same material as the auxiliary member 20 described with reference to FIG. 1, but may be manufactured in a tubular shape and installed inside the resin absorbent 10. By this auxiliary member 20 ', the vacuum tube 2 has a tubular shape of a two-layer structure.

On the other hand, a method for repairing a pipeline using the pipeline repair tube 1 according to an embodiment of the present invention having the above configuration will be described with reference to FIGS. 3 and 4.

First, as shown in FIGS. 3 and 4, the vacuum tube 1 is pulled and inserted into the conduit 101 to be repaired. Next, one end of the tube lining material 103 is folded and attached to the inversion nozzle 105. Inverting and inserting from one end of the vacuum tube 1 into the vacuum tube 1 while applying a fluid pressure to the inside of the tube lining material 103. At this time, at the other end of the vacuum tube 1, the air is drawn out and removed by the vacuum pump 106 to remove and remove the air in the vacuum tube 1.

The air in the vacuum tube 1 is sucked into the vacuum pump 106 rapidly past the auxiliary member 20 consisting of chopped strand mat or rubbing cloth. In this way, in the state in which the tube lining material 103 is reversely inserted into the vacuum tube 1 through which the air has escaped and attached to the wall of the pipe path 101, the inside of the pipe lining material 103 is heated and cured by hot water or the like and the pipe line 101 ) To form a plastic pipe and repair the pipe.

On the other hand, the thicker the thickness of the resin absorbent material 10 constituting the vacuum tube 1 is, the greater the ability to transfer the vacuum force.

Therefore, in order to further improve the vacuum transfer effect, the thickness of the resin absorbent material 10 of the vacuum tube 1 is set to be thick in the range of 1.0 mm to 10.0 mm, and the amount of resin impregnated in the resin absorbent material 10 is inverted. The resin absorbent material 10 is impregnated and filled with the resin by including a large amount in the tube lining material 103 to be used, so that the thickness of the resin absorbent material 10 in the vacuum tube 1 can be set thick, and the vacuum tube 1 Longer distances can be achieved by improving the vacuum transfer force.

Meanwhile, in FIG. 3, reference numeral 108 denotes a water supply hose for supplying a fluid to supply pressure into the tube lining material 103 to be reversely inserted, and in FIG. 4, reference numeral 109 denotes a pressure by applying the pressure into the tube lining material 103. The tube lining material 103 is shown to be in close contact with the inside of the pipeline 101.

1 is a schematic cross-sectional view showing a vacuum tube for repairing a pipeline according to an embodiment of the present invention.

Figure 2 is a schematic cross-sectional view showing a vacuum tube for repairing the pipeline according to another embodiment of the present invention.

3 and 4 is a schematic view for explaining a pipeline repair method according to an embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

1,2.Vacuum tube 10.Resin absorbent

11.plastic film 15.ribbon tape

20.20 '.. Auxiliary member 101 .. Pipeline

103..Tube lining

Claims (8)

In the vacuum tube is inserted into the pipeline and in the state that the air therein is removed in the vacuum tube which is installed in close contact with the pipeline as the tube lining material impregnated with the curable resin is inserted into the expansion and expanded, A tubular resin absorbent material having a predetermined length and coated with a plastic film on its outer circumferential surface; And It is installed in the longitudinal direction of the resin absorbent material from the inside of the tubular resin absorbent material, and for repairing the pipeline, characterized in that it comprises an auxiliary member so that the vacuum pressure acts as a whole in the resin absorbent material when vacuuming the inside of the resin absorbent material. Vacuum tube. The method of claim 1, wherein the auxiliary member, A vacuum tube for repairing a pipeline comprising a chopped strand mat having a glass fiber material. The method of claim 1, wherein the auxiliary member, A vacuum tube for repairing a pipeline comprising a rubbing cloth. According to any one of claims 1 to 3, wherein the auxiliary member, The vacuum tube for repairing a pipe line is provided in the longitudinal direction of said resin absorbent material and provided in plurality at predetermined intervals as a strip | belt shape. According to any one of claims 1 to 3, wherein the auxiliary member, A vacuum tube for repairing a pipeline having an outer diameter smaller than the inner diameter of the resin absorbent material and having a tube shape. The resin absorbent material according to any one of claims 1 to 3, wherein A vacuum tube for repairing a conduit formed of a nonwoven fabric containing plastic fibers. Inserting the pipeline repair vacuum tube of claim 1 into a pipeline to be repaired; Closing one end of the inserted vacuum tube and then extracting air therein; And reversing and inserting the tube lining material impregnated with the liquid resin through the other end of the vacuum-depleted vacuum tube. 8. The pipeline repair method according to claim 7, further comprising the step of further impregnating a tube lining material which is reversely inserted into the vacuum tube and the excess resin material to be absorbed by the vacuum tube.
KR1020070103560A 2007-10-15 2007-10-15 A vacuum-tube for repairing pipeline and a method for repairing pipeline KR20090038192A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020070103560A KR20090038192A (en) 2007-10-15 2007-10-15 A vacuum-tube for repairing pipeline and a method for repairing pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070103560A KR20090038192A (en) 2007-10-15 2007-10-15 A vacuum-tube for repairing pipeline and a method for repairing pipeline

Publications (1)

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KR20090038192A true KR20090038192A (en) 2009-04-20

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KR1020070103560A KR20090038192A (en) 2007-10-15 2007-10-15 A vacuum-tube for repairing pipeline and a method for repairing pipeline

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Effective date: 20120420