KR20090083823A - Method of repairing pipe by non- excavation - Google Patents

Abstract

A non-excavation total repairing method of the waterworks and sewerage is provided to reduce the number of equipment for heating the resin by making the resin cure at the lower temperature. A non-excavation total repairing method of the waterworks and sewerage comprises followings. The inside of a piping(20) is irradiated. The foreign material existing inside the piping is removed. A liner is made as a suitable size for the inside diameter of the pipe by dipping the low temperature vulcanizing resin. The liner is inserted into the pipe. The air is injected into the liner inserted into the pipe. The expanded liner is solidified at 0~10‹C.

Description

Method of repairing pipe by non- excavation}

The present invention relates to a water and sewage non-excavation overall repair method, and more specifically, to produce a water and sewage pipe repair liner easily in the field, water and sewage non-excavation for easy repair of water and sewage pipes with a simple equipment. It is about the whole remuneration process.

With urbanization, various pipes such as water and sewage pipes and gas pipes were buried underground, and these pipes gradually ageed and corrosion occurred over time. Corrosion of pipes causes leakage of water and sewage, pollution of drinking water, and gas leaks.

Excavation works to repair water and sewage pipes or gas pipes buried underground cause social costs such as huge construction costs, heavy traffic, safety accidents, and environmental problems. As a result, the entire water and sewage non-excavation total repair method began to be developed. In particular, in Korea, the road is narrow and there are many bends, and there are many connecting parts such as branch pipe connections and manholes. In addition, since the depth of embedding of the pipe is deep, the working environment is poor, and many sites in which additional costs used for removing obstacles are consumed are high.

Water and sewage non-excavation total repair methods include slip linig, close fit pipes linig, fold and form linig, spirally wound pipes linig, and cured tubes. place pipe). Recently, the reinforcement tube hardening method is the most attention, and various technologies are being developed in various countries around the world.

In the reinforcing tube curing method, a method of impregnating a resin in a polymer coated nonwoven fabric and then thermosetting using hot air or hot water is widely used. The reinforcing tube hardening method usually uses a method in which a non-woven fabric impregnated with resin in a factory is transported to a site using a refrigerator vehicle or the like and constructed. In the case of using a non-woven fabric impregnated with resin in this way, the construction time is limited depending on the possibility of curing the resin, and the equipment for curing the resin is complicated, which requires a large space for placing such equipment in the field. .

On the other hand, since the length of the pipe to be repaired from tens to hundreds of meters when manufacturing a liner (liner) in the factory, it was not easy to accurately adjust the required length along with the inconvenience of transportation and storage.

Therefore, in order to drastically reduce the construction time, it is necessary to manufacture as many liners as needed directly in the field using simple equipment, and to immediately construct them.

The problem to be solved by the present invention is to provide a water and sewage non-excavation overall repair method for easily repairing water and sewage pipes with a simple equipment by simply manufacturing a water and sewage pipe repair liner in the field.

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

Water and sewage non-excavation overall repair method according to an embodiment of the present invention for achieving the above object, the step of irradiating the inside of the pipe, the cleaning step of removing foreign matter present in the inside of the pipe, Impregnating a low temperature curable resin to produce a liner having a size suitable for the inner diameter of the pipe, inserting the liner into the pipe, infusing air into the liner inserted into the pipe, and expanding it; Curing the expanded liner.

According to the water and sewage non-excavation overall repair method according to the embodiments of the present invention as described above, there are the following effects.

First, the liner for repair of the pipe can be directly impregnated in the field to facilitate transport and storage.

Second, it is possible to cure the resin at a low temperature can reduce the equipment for heating can increase the space utilization of the site.

Third, the length and width of the liner can be adjusted to suit the characteristics of the site can be manufactured directly on site.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the present embodiments are intended to complete the disclosure of the present invention, and the general knowledge in the art to which the present invention pertains. It is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined only by the scope of the claims.

1 and 2 will be described in detail with respect to the pipe constructed by the water and sewage non-excavation overall repair method according to an embodiment of the present invention. 1 is a perspective view of a pipe constructed by the water and sewage non-excavation overall repair method according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along the line II-II ′ of the pipe of FIG. 1.

In the water and sewage non-excavation overall repair method according to an embodiment of the present invention, a liner including a nonwoven fabric impregnated with a low temperature curable resin is inserted into a pipe 20 to be repaired, and cured at a low temperature. It is a method for repairing the damaged pipe 20 by reinforcing the inside of the pipe 20 with a liner L.

1 and 2, the liner L is inserted into an inner surface of the damaged pipe 20. The liner L serves to prevent a fluid such as sewage, water, and gas in the pipe 20 from flowing out through the damaged portion 25 of the pipe 20 and to prevent foreign substances from flowing into the pipe 20. Do it. The liner L includes a nonwoven fabric P impregnated with a low temperature curable resin and a vinyl C surrounding the outside of the nonwoven fabric P. Specifically, a liquid low temperature curable resin is impregnated into the non-woven fabric P folded in two layers. Here, the low-temperature curable resin refers to a resin that is cured within about 1 to 6 hours even if no additional heat is applied at room temperature, and since methyl methacrylate (MMA) is used, in a sewage pipe where 0 to 10 ° C is an environmental condition. It hardens even at low temperature without undergoing a curing process by heat such as circulating hot water or high temperature steam. After covering the vinyl (C) to the outside of the non-woven fabric (P) impregnated with resin and inserted into the pipe 20, the resin is cured to form an inner tube of the pipe 20 shape.

Vinyl (C) is a cover surrounding the nonwoven fabric (P) when the air is filled in the nonwoven fabric (P) to expand the nonwoven fabric (P). That is, the cover surrounding the nonwoven fabric P is not limited to vinyl C, and various materials such as polypropylene and polystyrene, which may be used as a coating material of the nonwoven fabric P, may be used. In particular, a cover formed of a heat insulating material may be used so that the resin can be cured even under extremely low temperature conditions depending on the construction environment.

The manufacturing equipment of the liner L and the water and sewage non-excavation whole repair method using the liner L will be specifically described later.

Hereinafter, the concept of a pipe repairing liner manufacturing apparatus according to an embodiment of the present invention will be described in detail with reference to FIG. 3. 3 is a schematic diagram of an apparatus for manufacturing a liner for repairing a pipe according to an embodiment of the present invention.

Pipe repair liner manufacturing apparatus 10 according to an embodiment of the present invention is a device for manufacturing a liner inserted into the pipe to repair the broken pipe. Such a liner is formed of an inner layer of a non-woven fabric impregnated with a resin and a cover layer surrounding the same, and is inserted into a pipe to harden the resin to reinforce the broken pipe.

The liner manufacturing apparatus 10 for pipe repair includes a nonwoven fabric supply unit 100, an impregnation unit 200, a transfer unit 300, a cover supply unit 400, a crimping unit 500, a sealing unit 600, and a collecting unit 700. It includes.

The nonwoven fabric supply unit 100 serves to continuously supply the nonwoven fabric P. The nonwoven fabric supply unit 100 winds and stores the nonwoven fabric P in the form of a roll. When the liner manufacture starts, the nonwoven fabric P in the roll form is released. Supply to the impregnation unit 200. The nonwoven fabric P wound in the form of a roll in the nonwoven fabric supply unit 100 is formed of a plurality of layers. That is, the nonwoven fabric P is wound by overlapping at least two or more layers, and is supplied to the impregnation unit 200 in the form of a nonwoven fabric P in which at least two or more layers are overlapped.

The impregnation unit 200 serves to impregnate the resin (R) in the nonwoven fabric (P) supplied from the nonwoven fabric supply unit 100, the non-woven fabric (P) by passing the nonwoven fabric (P) through the resin (R) in the liquid state The resin R is impregnated.

On the other hand, the impregnation unit 200 may adjust the amount of the resin (R) impregnated in the nonwoven fabric (P) according to the piping to be repaired.

The transfer part 300 transfers the nonwoven fabric P impregnated with the resin from the impregnation part 200 to the crimping part 500. At this time, the resin-impregnated nonwoven fabric P is continuously transported by the length required for construction.

The resin-impregnated nonwoven fabric P is disposed on the upper and lower surfaces of the nonwoven fabric P before being provided to the crimping unit 500. Such vinyl C is supplied to the upper and lower surfaces of the nonwoven fabric P by the cover supply unit 400.

The vinyl C disposed on both sides of the nonwoven fabric P and the nonwoven fabric P is compressed by the crimping unit 500. The pressing unit 500 is in the form of a roller and is continuously compressed while being compressed. The nonwoven fabric P allows the resin R to be more uniformly impregnated by pressing. In other words, by impregnating the nonwoven fabric P impregnated with the resin R, the impregnation of the resin R is more likely to occur in the nonwoven fabric P. On the other hand, the compressed nonwoven fabric (P) and the vinyl (C) is to pass through the sealing part 600 continuously.

The sealing part 600 serves to heat seal the vinyl C remaining on the edge of the nonwoven fabric P. That is, when the vinyl (C) is attached to both sides of the resin-impregnated nonwoven fabric (P), and heat-sealed, the liner (L) is formed. Here, the liner (L) is a sealing of the nonwoven fabric (P) impregnated with the resin (R) with a vinyl (C), it is inserted into the pipe after expansion and hardening to reinforce the pipe. In other words, it refers to the final product completed using the device according to the invention.

 The liner L fuses the vinyl C positioned at the edge of the nonwoven fabric P so that the nonwoven fabric P is sealed by the vinyl C. Therefore, when the liner L exits the crimping part 500, the start portion of the liner L is first sealed, and both sides of the liner L are continuously sealed. And finally the end of the liner (L) is sealed. The completed liner L is recovered by the recovery part 700 and stored in a roll form. However, the recovery method of the recovery unit 700 is not limited to the roll form, but may be introduced into the pipe at the same time as the production of the liner (L). Therefore, the recovery method of the recovery unit 700 may be modified in various ways.

Hereinafter, with reference to FIGS. 3, 4 and 5, the apparatus for manufacturing a liner for repairing a pipe according to an embodiment of the present invention will be described in detail. 4 is a perspective view of a pipe repair liner manufacturing device according to an embodiment of the present invention, and FIG. 5 is a cross-sectional view taken along line III-III ′ of the pipe repair liner manufacturing device of FIG. 4.

Pipe repair liner manufacturing apparatus 10 according to an embodiment of the present invention as a nonwoven fabric supply unit 100, and includes a nonwoven fabric supply roller 110. The nonwoven fabric supply roller 110 stores the nonwoven fabric P in the form of a roll and releases it by a predetermined amount as necessary. The nonwoven fabric supply roller 110 may include a rotation motor (not shown) for rotating the roller.

On the other hand, the nonwoven fabric supply roller 110 is connected to the first pillar (pillar) is coupled to one side of the frame 810. The nonwoven fabric supply roller 110 may be coupled to protrude to the outside of the frame 810, and may be formed to be detachable for maximization of transportation convenience and space utilization, or to be folded and stored inside the frame 810. have. The first filler 820 may adjust the length of the first filler 820 according to the amount of the nonwoven fabric P wound on the nonwoven fabric supply roller 110.

The nonwoven fabric P supplied from the nonwoven fabric supply roller 110 is guided by the guide roller 220 and supplied to the impregnation container 210.

The impregnation part 200 will be described in detail with reference to FIGS. 4, 5, and 6. Here, FIG. 6 is a perspective view of an impregnation part included in the pipe repair liner manufacturing apparatus of FIG. 4.

The impregnation portion (see 200 in FIG. 3) includes an impregnation container 210, a guide roller 220, an adjusting roller 230, an impregnation roller 240, and a resin inlet 250. The impregnation container 210 includes a liquid resin R therein, such that the nonwoven fabric P passes through the impregnation container 210 so that the resin R is impregnated in the nonwoven fabric P. Guide rollers 220 are formed at the inlet of the impregnation container 210, so that the nonwoven fabric P can be easily introduced into the impregnation container 210, and the nonwoven fabric P introduced into the impregnation container 210 is The impregnation roller 240 passes through the resin R and is discharged to the outlet of the impregnation container 210. The impregnation roller 240 is formed inside the impregnation container 210 and is connected to a rotating motor (not shown) to force the nonwoven fabric P to pass through the resin R. Thus, the nonwoven fabric P which passed the resin R contains resin R between the fiber structures of the nonwoven fabric P. As shown in FIG.

The adjusting roller 230 serves to adjust the amount of the resin R contained in the nonwoven fabric P, and is formed of a pair of rollers facing each other at the outlet of the impregnation container 210. That is, when the non-woven fabric P impregnated with the resin R is passed between the adjusting roller 230 formed of a pair of rollers, the resin R contained in the nonwoven fabric P is impregnated again except for a certain amount. Flows to 210. By adjusting the distance of the adjusting roller 230, the amount of the resin impregnated in the nonwoven fabric P is adjusted.

One end of the impregnation container 210 includes a resin inlet 250. The liquid resin R is continuously reinforced, for example, through the resin inlet 250 located above the impregnation container 210.

Meanwhile, the impregnation container 210 may be disposed on the lower frame 810 adjacent to the nonwoven fabric supply roller 110.

The transfer roller 310 is formed near the exit of the impregnation container 210. In the transfer roller 310, a non-woven fabric P impregnated with resin is transferred, and first and second vinyl feed rollers 410 and second vinyl feed rollers 420 are formed on upper and lower portions of the transfer roller 310.

The first vinyl supply roller 410 serves to supply the vinyl C to the top surface of the resin-impregnated nonwoven fabric P, and the second vinyl supply roller 420 is the bottom surface of the resin-impregnated nonwoven fabric P. It serves to supply vinyl (C). The first vinyl feed roller 410 and the second vinyl feed roller 420 are wound around the vinyl (C) in the form of a roll, and unwinding at a constant speed as the nonwoven fabric P moves along the feed roller 310. It is attached to the upper and lower surfaces of the nonwoven fabric P and conveyed to the crimping portion (see 500 in FIG. 3).

At this time, the width of the supplied vinyl (C) should be at least greater than the width of the nonwoven fabric (P).

Meanwhile, the first vinyl feed roller 410 is coupled to the frame 810 through the second filler 830, and the second vinyl feed roller 420 is directly coupled to the frame 810. The first vinyl supply roller 410 and the second vinyl supply roller 420 may be connected to a separate power transmission means having a rotational force, if necessary, the nonwoven fabric moving along the transfer roller 310 without a separate power transmission means It can be provided manually by (P).

4, 5, and 7 will be described in detail with respect to the crimping portion (500). Here, FIG. 7 is a partial perspective view illustrating a crimping part included in the apparatus for manufacturing a liner for repairing pipes of FIG. 4.

The pressing part (see 500 of FIG. 3) includes a first pressing roller 510, a second pressing roller 520, a first support 850, a second support 860, and a first actuator 865. The second compression roller 520 is continuously disposed on the transfer roller 310 and coupled to the frame 810. The second pressing roller 520 may be arranged more densely than the transfer roller 310, and the first pressing roller 510 is formed to face the second pressing roller 520. Between the first pressing roller 510 and the second pressing roller 520 is a non-woven fabric (P) wrapped on both sides of the vinyl (C), the non-woven fabric (P) is conveyed by the rotational force of the second pressing roller 520 do. The first compression roller 510 is supported by the first support 850 and the second support 860, and the pressure is applied downward by the first actuator 865. Both surfaces of the nonwoven fabric P wrapped with vinyl C are impregnated with the resin, and the resin is impregnated with the nonwoven fabric P more uniformly while passing through the first pressing roller 510 and the second pressing roller 520. In addition, the nonwoven fabric P, which has passed between the first compression roller 510 and the second compression roller 520, becomes thin in thickness to reduce the overall volume of the liner L. FIG.

The nonwoven fabric P, which has passed through the first compression roller 510 and the second compression roller 520, moves to the sealing part 600.

4, 5 and 8 to 9b will be described in detail with respect to the sealing portion. 8 is a cross-sectional view of the pipe repair liner manufacturing device of FIG. 4 taken along the line VI-VI ′, and FIGS. 9A and 9B illustrate a first heating bar and a first part included in the pipe repair liner manufacturing device of FIG. 4. 2 is a cross-sectional view showing the operation of the heating bar.

The seal portion 600 (see 600 in FIG. 3) includes the first sealing roller 610 and the second sealing roller 620 for sealing the edges of both sides of the nonwoven fabric P, and the edges of the start end and the end of the nonwoven fabric P. FIG. And a first heating bar 630 and a second heating bar 640 to seal.

First, referring to FIGS. 4, 5, and 8, the nonwoven fabric P passing through the first pressing roller 510 and the second pressing roller 520 may include the first sealing roller 610 and the second sealing roller ( 620 is sealed to seal the vinyl (C) of the edge of both sides. The first sealing roller 610 includes a heating unit (not shown), and heat-sealed sealing by applying heat and pressure to the vinyl (C). The first sealing roller 610 may be formed to the same width as the width of the vinyl (C) of the edge of the nonwoven fabric (P), the width of the first sealing roller 610 is the sealing surface (S) of the vinyl (C) Is equal to the width of.

The first pressing roller 510 is fixed by the third support 870, and can be moved up and down by the second actuator 875 formed on the third support 870, the pressure to compress the vinyl (C) Make it adjustable. The first pressing rollers 510 are formed on both sides of the nonwoven fabric P, respectively, so that the vinyl C can be continuously sealed.

Subsequently, referring to FIGS. 4, 5, 9A, and 9B, the nonwoven fabric P and the vinyl C passing through the first pressing roller 510 and the second pressing roller 520 may be formed of a first heating bar ( It moves between the 630 and the second heating bar (640). At the beginning of the nonwoven fabric P and the vinyl C, the vinyl C protrudes so that the vinyl C surrounds the nonwoven fabric P. Therefore, when the vinyl C protruding from the nonwoven fabric P is positioned above the first heating bar 630, the second heating bar 640 positioned above the first heating bar 630 moves downward. The vinyl C positioned between the first heating bar 630 and the second heating bar 640 is compressed. At this time. At least one of the first heating bar 630 and the second heating bar 640 includes a heater (not shown), so that the vinyl C is thermally fused to form the sealing surface S.

In this manner, the pipe repair liner L is completed. The liner L is continuously manufactured and the manufactured liner L is recovered through the recovery part 700. The recovery part 700 may be formed by a recovery roller 710, and may recover the liner L discharged by using a separate power. The recovery part 700 may be fixed to the third filler 840 and may be connected to the frame 810, and may be detachably formed like the aforementioned nonwoven fabric supply roller 110 or may be folded into the frame 810. It can be formed as.

On the other hand, the frame 810 may be mounted on a transport means such as a vehicle or a trailer. That is, the above-described pipe repairing liner L is capable of mounting all structures inside the compact frame 810, thereby reducing the overall volume. Therefore, it can be mounted on a variety of transfer means and can be immediately moved to the site, it is possible to manufacture the liner (L) as soon as necessary in the field.

Hereinafter, the piping repair method according to an embodiment of the present invention will be described in detail with reference to FIGS. 10 to 17. 10 to 17 are views schematically showing operations according to the water and sewage non-excavation overall repair method according to an embodiment of the present invention.

First, as a preliminary preparation process for repairing the pipe 20, the inside of the pipe 20 is examined to check for damage and determine a position to be repaired. As a method of inspecting the inside of the pipe 20, the endoscope or a robot equipped with a camera may be put into the naked eye to check the damaged part. The endoscope or the robot may be introduced through the manhole (see 40a and 40b of FIG. 10), and if necessary, a portion of the pipe 20 may be excavated and inserted.

Next, referring to FIG. 10, when it is determined that repair of the pipe 20 is necessary during the irradiation process of the pipe 20, the inside of the pipe 20 is cleaned for repair work. Specifically, the upstream pipe 21 is blocked by the order device 60 to prevent the inflow of water or sewage into the pipe 20 to be worked. Next, high pressure washing water is injected into the pipe 20 using the high pressure injector 52 to clean the inside of the pipe 20. With the injection of the washing water by the high-pressure injector 52 as described above, the inside of the pipe 20 is cleaned by sucking foreign substances or deposits therein.

Subsequently, referring to FIG. 11, obstacles that interfere with the work inside the pipe 20 are removed to repair the pipe 20. Here, the obstacle that interferes with the work is to protrude into the pipe 20, such as the projecting portion 35 of the branch pipe 30 to form irregularities on the inner surface of the pipe 20. In order to insert the liner (see L in FIG. 1) inside the pipe 20, it must be kept uniform on the inner surface. At this time, the operation of removing the obstacle may vary the operation method according to the diameter of the pipe (20). That is, the repair of the pipe 20 having a diameter enough for the worker to enter directly can be repaired directly by the operator, the diameter is not enough for the worker to enter, or the worker can enter directly because the internal environment is dangerous. In the absence of work, work can be performed using the work robot 50. The cutting tool 55 is attached to the work robot 50 to delete all obstacles in the pipe 20.

Subsequently, referring to FIG. 12, a liner L for repairing the pipe 20 is manufactured on site. When the length or width of the liner L required during the irradiation process of the above-described pipe 20 is determined, the liner L is manufactured directly in the field. At this time, the liner L is manufactured using the above-described liner manufacturing apparatus (see 10 in FIG. 3). In order to supply the liner L suitable for the site, it is preferable to manufacture the liner L directly on the site. The liner manufacturing apparatus 10 may be mounted and used in a moving means such as a vehicle, and may be used after being fixedly installed in the field.

The liner L may be manufactured immediately before insertion into the pipe 20 in consideration of the pot life of the resin and may be immediately inserted.

Subsequently, referring to FIG. 13, the liner L is inserted into the pipe 20. The liner L may be inserted into the pipe 20 by the work robot 50. At this time, the liner (L) prepared in advance on the site can be inserted into the pipe 20 by connecting to the work robot 50, but at the same time the liner manufacturing equipment 10 is installed in the field and at the same time manufacturing the liner (L) It can be inserted into the pipe 20. That is, the liner L is manufactured in the apparatus for manufacturing the liner L, and is not wound by a separate recovery part (see 700 of FIG. 3), and directly connected to the work robot 50 and inserted into the pipe 20. Can be. In this way work time can be reduced.

Subsequently, referring to FIG. 14, both ends of the liner L inserted into the pipe 20 are sealed, and the air injection pipe 70 is inserted 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 maintains the liner L in the same shape as the pipe 20. In the process according to the present invention, because the low-temperature curable resin is used, air at room temperature is injected into the liner L, and if necessary, hot or low-temperature air may be injected to control the curing time of the resin.

On the other hand, both ends of the liner (L) can be sealed in a bundle, the sealing surface formed at the end of the liner (L) without using a separate sealing means in consideration of the air pressure inside the liner (L) (Fig. 9a and (See S in FIG. 9B).

Subsequently, referring to FIG. 15, the expanded liner L is held for a predetermined time to cure the resin included in the liner L. The low-temperature curable resin does not require a separate heating device because it can be cured under the conditions of 0 ~ 10 ℃. 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 material contained in the resin. Thus, the liner L remains inflated for about 1 to 8 hours.

Subsequently, referring to FIG. 16, both ends of the cured liner L are cut to form a pipe passage therein.

Finally, referring to FIG. 17, the liner L of the portion connected to the branch pipe 30 is drilled to communicate between the pipe 20 and the branch pipe 30. That is, since the liner L is integrally penetrated to the beginning and the end of the pipe 20, the inner line of the pipe 20 is drilled in order to connect to the branch pipe 30 branched from the middle of the pipe 20. Communicate. Such a drilling operation can be performed using the work robot 50 to which the cutting tool 55 is attached. When such work is completed and the order apparatus 60 installed in the upstream pipe 21 is removed, repair of the piping 20 will be completed.

Although embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features thereof. I can understand that. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive.

1 is a perspective view of a pipe constructed by the water and sewage non-excavation overall repair method according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the pipe of FIG. 1 taken along line II-II '. FIG.

Figure 3 is a schematic diagram of a pipe repairing liner manufacturing apparatus used in the water and sewage non-excavation overall repair method according to an embodiment of the present invention.

4 is a perspective view of a pipe repairing liner manufacturing apparatus used in the water and sewage non-excavation overall repair method according to an embodiment of the present invention.

FIG. 5 is a cross-sectional view of the pipe repairing liner manufacturing device of FIG. 4 taken along line VV ′. FIG.

6 is a perspective view of an impregnation part included in the apparatus for manufacturing a liner for repairing pipes of FIG. 4.

7 is a partial perspective view illustrating a crimping portion included in the apparatus for manufacturing a liner for repairing pipes of FIG. 4.

FIG. 8 is a cross-sectional view of the pipe repairing liner manufacturing device of FIG. 4 taken along line VIII-VIII ′. FIG.

9A and 9B are cross-sectional views illustrating an operation process of the first heating bar and the second heating bar included in the pipe repair liner manufacturing apparatus of FIG. 4.

10 to 17 is a view schematically showing the operation according to the water and sewage non-excavation overall repair method according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

10: piping repair liner manufacturing apparatus 20: piping

25: broken part 30: branch pipe

40a, 40b: manhole 50: working robot

52: high pressure injector 55: cutting tool

60: order device 100: nonwoven fabric supply part

110: nonwoven fabric supply roller 200: impregnation

210: impregnation container 220: guide roller

230: adjusting roller 240: impregnation roller

250: resin inlet 300: transfer unit

310: feed roller 400: cover supply

410: first vinyl feed roller 420: second vinyl feed roller

500: press part 510: first press roller

520: second pressing roller 600: sealing portion

610: first sealing roller 620: second sealing roller

630: first heating bar 640: second heating bar

700: recovery part 710: recovery roller

810: frame

Claims (9)

Examining the inside of the pipe; A cleaning step of removing foreign substances present in the inside of the pipe; Impregnating a non-woven fabric with a low temperature curable resin to prepare a liner having a size suitable for the inner diameter of the pipe; Inserting the liner into the pipe; Inflation by injecting air into the liner inserted into the pipe; And Water and sewage non-excavation overall repair method comprising the step of curing the expanded liner. The method of claim 1, The low temperature curable resin is methyl methacrylate (methyl methacrylate) water and sewage non-excavation overall repair method containing. The method of claim 1, The curing step is water and sewage non-excavation overall repair method made under conditions of 0 ~ 10 ℃. The method of claim 1, The step of manufacturing the liner is water and sewage non-excavation overall repair method made in the field. The method of claim 4, wherein The manufacturing of the liner and the step of inserting the liner into the pipe is a continuous water and sewage non-excavation overall repair method. The method of claim 1, The step of manufacturing the liner, A nonwoven fabric supply roller for supplying the nonwoven fabric, An impregnation container for impregnating the resin with the nonwoven fabric including the low temperature curable resin; A conveying roller for conveying the nonwoven fabric, Vinyl feed roller for supplying vinyl to the upper and lower surfaces of the non-woven fabric impregnated with the resin, A pressing roller for pressing the nonwoven fabric having the vinyl attached to upper and lower surfaces thereof, and Water and sewage non-excavation overall repair method for manufacturing the liner by using a liner manufacturing apparatus for piping repair including a sealing portion for sealing the edge of the vinyl. The method of claim 6, And the sealing portion is a sealing roller disposed on the side of the nonwoven fabric to be conveyed to seal the vinyl by heat sealing. The method of claim 6, The sealing unit includes a first heating bar disposed in parallel with the transfer roller and disposed below the vinyl, and a second heating bar disposed above the vinyl to face the first heating bar. Method. The method of claim 6, The pipe repair liner manufacturing apparatus is integrally formed water and sewage non-excavation overall repair method installed on the moving means.

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