KR100775008B1 - Apparatus for removing pleat of close-fit pipes lining system and method thereby - Google Patents

Abstract

An apparatus and a method for removing pleat of a close-fit pipe lining system are provided to permit the apparatus to be movable even along a pipe having a diameter as small as 300 to 900mm. An apparatus for removing pleat of a close-fit pipe lining system includes a moving unit(200), a heater unit(300), a maintenance unit(400), and a photographing unit(550). The moving unit moves the apparatus along a buried pipe(100). The heater unit is mounted on the moving unit, and softens pleat(C) formed on the inner wall of a liner(30) by applying heat to the pleat. The maintenance unit removes the pleat softened by the heater unit. The photographing unit is movable along the buried pipe to monitor the pleat and state of the apparatus.

Description

Apparatus for removing pleat of close-fit pipes lining system and method hence}

1 is a block diagram showing a situation that wrinkles occur in the buried pipe in the strain pipe insertion method.

Figure 2 is a configuration diagram showing a state of removing the wrinkles of the liner using the wrinkle removal means in the strain pipe insertion method.

Figure 3 is a schematic view showing a wrinkle removal apparatus of the modified tube insertion method according to the present invention.

Figure 4 is a reference diagram showing a picture of the heater means, repair means and self-propelled vehicle of the wrinkle removal apparatus according to the present invention.

5 is a reference diagram showing a picture of the heater means according to the invention.

Figure 6 is a block diagram showing an operating state of the repair means according to the invention.

Figure 7a is a reference diagram showing a photograph of the state of wrinkles before wrinkle removal operation.

Figure 7b is a reference diagram showing a picture before the wrinkle removal operation viewed from the moving means side according to the present invention.

Figure 7c is a reference diagram showing a photograph of a self-driving car in a buried pipe according to the present invention.

Figure 7d is a reference diagram showing a photograph of the state of wrinkles after wrinkle removal operation.

* Description of the symbols for the main parts of the drawings *

10, 20: manhole 30: liner

50: sealing member 60: fluid supply

100: buried pipe 200: means of transportation

300: heater means 350: heat shield member

400: repair means 450: compressor

500: self-driving car 550: shooting means

A: stepped portion B: connection portion

C: wrinkle

The present invention relates to a wrinkle removal device and a method for removing wrinkles, wherein a buried pipe that cannot be inserted by an operator can quickly and effectively remove wrinkles that occur in buried pipes in the process of performing a non-excavation strain pipe insertion method, that is, flat It relates to a wrinkle removal device and wrinkle removal method of the modified tube insertion method.

In general, sewer pipes, which are underground buried pipes, are degraded due to aging and lack of maintenance due to long-term use, and cracks, breakages, and corrosion occur, which makes the operation of the sewage treatment plant not efficient. In this case, various kinds of wastewater are introduced into the ground to contaminate soil and groundwater, causing ground subsidence, and rainwater flowing into the damaged portion of sewage pipes has many problems, such as increasing the cost of sewage treatment.

On the other hand, most of the underground buried pipes (for example, sewer pipes, water pipes, etc.) constructed in Korea due to the lack of design / manufacturing and maintenance without considering the long-term use and depth of buried, dynamic load of the load, Buried pipes are aging before design life. As described above, the buried pipes contain many problems such as environmental pollution due to leakage of waste water and loss of social indirect capital due to increased sewage treatment costs.

Accordingly, excavation and non-excavation methods are largely used for repairing and reinforcing underground buried pipes, and in Korea, replacement of buried pipes by excavation is almost carried out. However, the excavation method is to control the entire road where the bad buried pipe was buried extensively for a long time when a problem occurs, and to replace the old pipe by excavating the road with the use of heavy equipment and manpower, this method is the damage of the intact road In recent years, the excavation method is unreasonable because it requires a lot of cost and time such as loss of social indirect capital due to long road control, generation of harmful environmental factors such as noise / vibration / dust, and road resurfacing costs. As a result, non-excavation methods are being developed that shorten the construction period and lower the cost.

The non-excavation method means that the buried pipes buried underground, cracks, short circuits, leaks, wall loss, inclusions, loosening of joints, breakage of joints, breakage of connectors, breakage of manholes, etc. In case of failure to maintain structural strength due to defects, etc., and failure to properly perform the role of sewage due to increased penetration / inflow through damaged parts, short time without excavation of the road instead of the conventional excavation and replacement method It is a construction method that repairs various defective factors in the inside and prolongs the strength, roughness coefficient and durability of the fuse. Such non-excavation methods are currently being developed such as slip lining, spirally wound pipes lining, and cured-in-place-pipes lining (CIPP).

1 is a block diagram showing a situation in which wrinkles occur in the buried pipe in the strain pipe insertion method, Figure 2 is a block diagram showing a state of removing the wrinkles of the liner using the wrinkle removal means in the strain pipe insertion method.

As shown in Figs. 1 and 2, of the non-excavation method, the recently developed strain pipe insertion method is, for example, a flexible liner 30 in a buried pipe 100 connecting between different manholes 10. ) And the liner 30 is inflated by the fluid supply unit 60 supplying a fluid pressure to the sealing member 50 by sealing both ends of the buried pipe 100 with the sealing member 50. By removing the wrinkles (C) of the liner 30 that may occur at the step portion (A) and the connection portion (B) of the buried pipe 100 using a wrinkle removal means including a halogen heater and repair means, etc. It is economical and environmentally friendly as a method that can prevent the reduction of descent speed.

However, in the implementation of the above non-excavation method, the buried pipe wrinkle removal work in which the diameter of the buried pipe exceeds 900 mm can be performed while the worker directly takes the related work machine and looks at the location and condition of the buried pipe. In the case of buried pipe of 300mm to 900mm it is difficult or impossible for the worker to work directly while watching the wrinkles, there is a problem in that the quality of the work results fall.

In addition, while the worker enters the buried pipe to watch the condition of the wrinkles, the halogen heater is softened to the recommended working method, and a manual operation for removing the wrinkles that may occur at the connecting part and the step by inserting a repair means into the buried pipe prepares the related device. It takes a lot of time to move or work to the wrinkle area, the quality of the work result is not constant, there is a problem that the wrinkle removal operation is not made continuously.

In particular, during the softening of the wrinkles, the worker keeps the halogen heater at the wrinkles at regular intervals and keeps it close to radiate the heat, and a considerable amount of radiant heat from the halogen heater passes through the open buried pipe passage to decrease the softening efficiency. Due to the packer member, which is a repair means that the pressure does not reach 1.5 atm, the wrinkles are not completely unfolded, and thus there is a problem that the wrinkle removal operation must be repeated.

The present invention has been proposed to solve the above problems, the wrinkle removal device in the buried pipe 300mm to 900mm in diameter difficult to enter the operator is provided to be movable in the buried pipe also independently, the wrinkles or all of the devices Accurately grasp the location and condition so that the work can be done continuously and accurately while minimizing the time for removing wrinkles, and the wrinkles are strongly compressed by the packer member to increase the completeness of the wrinkle removal work, thereby improving the quality of the work result. The aim is to make the relevant work and training effective and simple.

Wrinkle removal apparatus of the strain pipe insertion method according to the present invention is introduced into the existing buried pipe flexible liner and inflated by close contact with the inner wall of the buried pipe, strain pipe insertion method for removing the wrinkles generated on the inner wall of the liner An apparatus for removing wrinkles, comprising: moving means for moving a device in the buried pipe; Heater means provided in the moving means for supplying a heat source to the wrinkles generated on the inner wall of the liner to soften the wrinkles; Repair means for removing a wrinkled portion softened by the heater means; And a self-propelled vehicle which is provided to be movable in the buried pipe and has photographing means for grasping the state of the wrinkles or the general apparatus.

The moving means is a trailer movable by manpower or a self-driving self-driving vehicle, the heater means comprises a hot air blower, the heater means is provided with the pleated portion sealed, and to other parts except the pleated portion It is preferable to further include a heat shield member to block or reduce heat radiation to soften the wrinkles.

The thermal barrier member includes a pair of members for confining the heat source and the corrugated portion together, wherein one member extends from around the heat dissipation opening of the hot air fan through which the heat source is discharged to block the flow path of the buried pipe or It is preferably formed to the inner wall of the liner, the other member is connected to the one member is preferably formed to block the flow path of the buried pipe.

The thermal barrier member is formed of a hard member and formed of an inner plate and a soft member which are radially divided into a plurality of radially from a center point to a predetermined diameter smaller than the diameter of the buried pipe from each inner plate to contact the inner wall of the buried pipe or liner. It is preferable to include the outer plate which is extended.

The temperature of the heat source is 450 ℃ to 550 ℃, the time that the heat source is supplied to the wrinkled portion by the heater means is 20 minutes to 30 minutes, the softening temperature of the wrinkled portion where the heat source is supplied by the heater means is 120 ℃ to It is preferred that it is set to be 150 ℃.

The repair means preferably includes a compressor for generating a pressure and a packer member connected to the compressor to receive a predetermined pressure from the compressor for a predetermined time to remove wrinkles by expansion pressure, and to remove wrinkles of the liner. In order to provide the pressure to the packer member is 3kg / ㎠ to 4kg / ㎠, the time is preferably set to 5 minutes to 7 minutes.

The repair means is preferably connected to the heater means to remove the wrinkles softened by the heater means continuously.

It is preferable to further include a photographing means provided between the moving means or the heater means and the repair means, to grasp the state of the first wrinkle or the liner softened by the heater means.

Wrinkle removal method of the strain pipe insertion method according to the present invention is a strain pipe insertion method for removing the wrinkles generated on the inner wall of the liner by inflating the flexible liner into the existing buried pipe and then inflated. Wrinkle removal method of, the heater means is introduced to the wrinkles generated on the inner wall of the liner, by supplying a heat source by the heater means for a predetermined temperature for a predetermined time to soften the wrinkles, The softened wrinkled portion is flattened by the repair means, and the photographing means is used to determine the state of the wrinkles or the general apparatus.

Softening the wrinkle part may include blocking or reducing heat radiation to other parts except for the wrinkle part, wherein the temperature of the heat source is 450 ° C. to 550 ° C., The time for supplying the heat source is 20 minutes to 30 minutes, and it is preferable that the softening temperature of the wrinkled portion to which the heat source is supplied by the heater means is 120 ° C to 150 ° C.

The wrinkle removal step is preferably to remove the wrinkles through the generated pressure to generate a pressure, the pressure supplied to the packer member to remove the wrinkles of the liner is 3kg / ㎠ to 4kg / ㎠, the time It is preferable that it consists of 5 to 7 minutes.

The photographing means is provided in the moving means, between the heater means and the repair means, or behind the repair means, so as to grasp the state of the first wrinkle, the liner softened by the heater means, or the wrinkle part removed. desirable.

It is preferable to connect the heater means, the repair means and the photographing means with a connecting member so as to continuously remove wrinkles.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a schematic diagram showing a wrinkle removal apparatus of the strain pipe insertion method according to the present invention, Figure 4 is a reference diagram showing a picture of the heater means, repair means and self-propelled vehicle of the wrinkle removal apparatus according to the present invention.

As shown in Figures 3 and 4, the wrinkle removal apparatus of the strain pipe insertion method according to the present invention is introduced after the flexible liner 30 is introduced into the existing buried pipe to expand and in close contact with the inner wall of the buried pipe 100 In the strain pipe insertion method for removing wrinkles (C) generated on the inner wall of the liner 30, the whole device is pulled and moved by the attraction force by the workers or by the magnetic force by the motor and the prime mover in the buried pipe 100. Moving means 200 to make; A heater connected to or mounted on the moving means 200 (at the rear of the moving means 200) to supply a heat source to the wrinkle (C) portion generated on the inner wall of the liner 30 to soften the wrinkle (C) portion. Means 300; Repair means (400) for removing a portion of the wrinkles (C) softened by the heater means; And a self-propelled vehicle 500 provided to be movable in the buried pipe 100 and having a photographing means 550 to grasp the state of the wrinkles (C) or the general apparatus.

The moving means 200 may be a trailer that is connected to the front by a connecting means such as a string and is movable by human personnel, or may be a self-driving vehicle that is movable by a magnetic force by a motor or a motor that may be controlled by wireless or wireline.

5 is a reference diagram showing a picture of the heater means according to the present invention.

3, 4 and 5, the heater means 300 may be made of a far infrared heater, steam, hot water, microwave oven or halogen heater, the heater means 300 is preferably blower 320 And a hot air fan including a heater 330, and the heater means 300 is provided with the corrugation (C) portion closed, and other such as a passage of the buried pipe 100 except for the corrugation (C) portion. It is preferable to further include a heat shield member 350 to block or reduce the heat radiation to the site to increase the efficiency of the work to soften the wrinkles.

The thermal barrier member 350 includes a pair of members 351 and 352 for confining the heat source and the wrinkled portion together, and one member 351 extends from around the heat dissipation hole 310 of the hot air fan from which the heat source is discharged. It is formed to the inner wall of the buried pipe 100 or the liner 30 so as to block the flow path of the buried pipe 100, the other member 352 to the one member 351 and the connection member 360 It is preferable that the heat source supplied from the hot air blower is connected to each other by blocking the flow path of the buried pipe 100 so as not to escape to other parts except the wrinkle part. In this case, the distance between the pair of members 351 and 352 may be adjusted according to the length of the liner 30 or the pleats (C).

The one heat shield member 351 is preferably formed of a hard member, such as heat resistant stainless steel, like the other heat shield member 352, and a plurality of radially from a central point to a predetermined diameter smaller than the diameter of the buried pipe 100 The inner plate 351a to be divided and combined and formed of a flexible member having resilience by elasticity such as Teflon having excellent heat resistance and more than the diameter from the inner plate 351a to the inner wall of the buried pipe 100 or the liner 30 It includes an outer plate 351b extending to. That is, since the outer plate 351b of the thermal barrier member 351 is formed of a soft member, the outer plate 351b has various diameters by being deformed and adhered to the inner wall of the buried pipe 100, which may have various diameters corresponding to 300 mm to 900 mm in diameter. In accordance with the buried pipe to perform the function of blocking the heat emission. At this time, the size of the inner plate (351a) and the outer plate (351b) can be adjusted and manufactured according to the diameter of the buried pipe to work. The outer plate 351b may be divided into a plurality of parts, and may be mounted to the inner plate 351a through coupling means.

On the other hand, during the wrinkle softening operation, the heat source is supplied to the wrinkle portion by the heater means 300 to a heat source of 450 ℃ to 550 ℃ (about 500 ℃) is 20 minutes to 30 minutes. If the time for which the heat source having the temperature for the wrinkled portion C is irradiated is less than about 20 minutes, the liner 300 may not be softened. When the time is greater than about 30 minutes, the liner ( 300) can be completely softened and denatured, making application in the field difficult.

In addition, the softening temperature of the wrinkled portion to which the heat source is supplied by the heater means exhibited an optimal state when it is made of 120 ℃ to 150 ℃. The heat source supply time and the softening temperature of the hot air blower as the heater means are preferably made in a comprehensive manner, and the hot air temperature, time and softening temperature may be changed according to application in the field.

As such, the hot air blower and the heat shield member 350, which are heater means according to the present invention, soften the section in which the wrinkle portion is generated in a wider area at the same time, evenly than in the halogen heater having the direct irradiation method for the wrinkle portion, in the buried pipe of various diameters. It is injected into the wrinkles to soften constantly, and at the same time wide wrinkles (C) to soften, and to reduce the working time.

Figure 6 is a block diagram showing an operating state of the repair means according to the invention.

As shown in FIG. 6, the maintenance means 400 is provided by the compressor 450 and the pneumatic hose 470 through the compressor 450 generating pressure and the pressure gauge 460 capable of determining the degree of pressure. It is connected to the packer member of the silicon material is applied until the internal temperature is approximately 250 ℃ to receive a predetermined pressure from the compressor 450 for a predetermined time to remove the wrinkles by the expansion pressure. At this time, the pressure supplied to the packer member to remove wrinkles of the liner is 3kg / ㎠ to 4kg / ㎠, the time is preferably made of 5 minutes to 7 minutes.

If the pressure is less than about 3kg / ㎠ the softened wrinkles (C) may not be completely eliminated, the working time required until the softened wrinkles (C) area disappears, the pressure is approximately 4kg / Cm2 exceeded, the packer member of the silicon material can not withstand the temperature of the buried tube inside the high temperature, and when the time is less than about 5 minutes, the wrinkles (C) softened by the pressure may not be fully worked. In addition, when the time exceeds approximately 7 minutes, most of the wrinkles softened by the pressure (C) is eliminated and consumes only working time. Such pressure and time may be changed according to the application in the field.

In addition, the repair means 400 may be operated separately from the heater means 300, but is connected to the rear of the heater means 300 by a connection member 370 to the heater means 300 to the heater It is preferable to continuously remove the wrinkles softened by the means 300, and the wheel 410 is provided to be movable in the buried pipe (100).

The self-propelled vehicle 500 having the photographing means 550, such as CCTV, is introduced into the buried pipe 100 before, during or after the wrinkle removal operation to determine the exact position and state of the wrinkles (C) or to operate the various devices. Identify the relevant status.

In addition, preferably a separate photographing means is provided in the moving means 200, between the heater means 300 and the repair means 400 or behind the repair means 400, the first wrinkles to be worked The outside of the buried pipe 100 by wire or wirelessly grasps the state of the liner 30 softened by the heater means 300 or the wrinkled portion removed and moves or reworks the related device. The operator at can precisely and conveniently direct and observe the work.

On the other hand, it is preferable to connect the heater means 300, the repair means 400 and the photographing means as a connecting member to integrate the associated device to continuously remove wrinkles without wasting work time.

It will be described in detail the wrinkle removal method by the wrinkle removal apparatus of the modified tube insertion method according to the present invention made of such components.

Figure 7a is a reference diagram showing a picture of the wrinkles state before the wrinkle removal operation, Figure 7b is a reference diagram showing a picture before the wrinkle removal operation viewed from the moving means side according to the invention, Figure 7c according to the present invention Fig. 7d is a reference diagram showing a photograph of a wrinkle state after a wrinkle removal operation in a buried car within a buried pipe.

As shown in Figure 7a and 7c, the method of removing the wrinkles of the strain pipe insertion method is to introduce the flexible liner 30 in the existing buried pipe 100 and then expand by the pressure generating means of the buried pipe 100 The self-propelled vehicle having a photographing means 550 to close the inner wall and remove the wrinkles generated on the inner wall of the liner 30 during the process of inserting the strain pipe to remove the wrinkles generated on the inner wall of the liner 30. A separate photographing means that can be mounted on the 500 or the moving means 200 is inserted into the buried pipe 100 to check the position and state of wrinkles.

Next, as shown in Figure 7b, after confirming the position and the state of the wrinkles, the hot air blower which is the heater means 300 to the portion of the wrinkles (C) generated on the inner wall of the liner 30 is introduced and moved, the heater means By 300, the heat source is supplied to the wrinkles (C) site until the predetermined temperature for a predetermined time to soften the wrinkles (C) site. At this time, by closing the wrinkles (C) portion through the heat shield member 350 to block or reduce the heat radiation to other portions, by operating the hot air fan to heat the heat source of 450 ℃ to 550 ℃ for 20 minutes to 30 minutes ( C) to the site. At this time, the softening temperature of the wrinkled portion supplied to the heat source by the heater means is made of 120 ℃ to 150 ℃.

Next, the softened wrinkled portion is supplied with a predetermined pressure from the compressor 450 generating a pressure for a predetermined time to expand the packer member, which is the repairing means 300, to remove the wrinkled portion by pressure. At this time, the pressure supplied to the packer member to remove the wrinkles of the liner 30 is 3kg / ㎠ to 4kg / ㎠, the time is made of 5 to 7 minutes.

Next, the photographing of a separate photographing means or self-propelled vehicle 500 may be provided between the heater means 300 and the repair means 400 or at the rear of the repair means 400. By grasping the state of the wrinkles or the overall device worked by the means 550 can be used for the operation such as reworking to grasp the state of the original wrinkles, the liner softened by the heater means or the wrinkles removed.

At this time, when connecting the heater means 300, the repair means 400 and the photographing means with a connecting member, it is possible to precisely work by observing that wrinkle removal work is continuously and quickly entered into the buried pipe 100. Let's do it.

Thus, as shown in Figure 7d, by removing the wrinkles that can occur during the construction of the strain pipe insertion method, regardless of the diameter of the buried pipe quickly, completely minimize the working time, and make the continuous work, wrinkles Removal work and work training can be effectively performed to ensure the water flow in the buried pipe, it is possible to maintain a smooth fluid flow.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes can be made in the art without departing from the technical spirit of the present invention. It will be clear to those of ordinary knowledge.

The present invention is not only a buried pipe that the operator can enter the work, but also to the buried pipe of 300mm to 900mm in diameter difficult to enter the worker is provided with a wrinkle removal device is movable in the buried pipe independence, wrinkles by the photographing means Or by precisely grasping the location and condition of the various devices to enable high-quality precise wrinkle removal work, and to shorten the time of wrinkle removal work within 30 minutes by rapid wrinkle softening work by the heater means including the heat shield member. Minimizes the time and increases the completeness of wrinkle removal by compressing the wrinkles strongly by the packer member with internal pressure of 3kg / ㎠ to 4kg / ㎠, and eliminating wrinkles in the non-extruded strain pipe insertion method by integrating the wrinkle removal device Work and education are continuous and effective, and the overall work is simplified.

Claims (17)

As a wrinkle removal device of the strain pipe insertion method for inserting a flexible liner into the existing buried pipe and then inflated to adhere to the inner wall of the buried pipe, to remove the wrinkles generated on the inner wall of the liner, Moving means for moving the device in the buried pipe; Heater means provided in the moving means for supplying a heat source to the wrinkles generated on the inner wall of the liner to soften the wrinkles; Repair means for removing a wrinkled portion softened by the heater means; And It includes a self-propelled vehicle that is provided to be movable in the buried pipe and having a photographing means for grasping the state of the wrinkles or various devices; Wrinkle removal device of the strain pipe insertion method. The method of claim 1, The means of transportation Trailers movable by manpower or self-propelled autonomous vehicles Wrinkle removal device of the strain pipe insertion method. The method of claim 1, The heater means is made of a hot air fan, The heater means is provided with a closed portion of the wrinkles, and further comprises a heat blocking member for softening the wrinkles by blocking or reducing heat radiation to other parts except the wrinkles. Wrinkle removal device of the strain pipe insertion method. The method of claim 3, The thermal barrier member is provided with a pair of members to trap the heat source and the wrinkle portion together, One member is formed up to the inner wall of the buried pipe or liner to extend from around the heat dissipation opening of the hot air fan from which the heat source is discharged to block the flow path of the buried pipe, The other member is connected to the one member is formed to block the flow path of the buried pipe Wrinkle removal device of the strain pipe insertion method. The method of claim 4, wherein The thermal barrier member The inner plate is formed of a hard member and the inner plate is divided into a plurality of radially from a central point to a predetermined diameter smaller than the diameter of the buried pipe and the outer plate formed of a soft member extending from each inner plate to contact the inner wall of the buried pipe or liner Containing Wrinkle removal device of the strain pipe insertion method. The method of claim 3, The temperature of the heat source is 450 ℃ to 550 ℃, The time for supplying the heat source to the wrinkled portion by the heater means is 20 minutes to 30 minutes, The softening temperature of the wrinkled portion supplied to the heat source by the heater means is set to be 120 ℃ to 150 ℃ Wrinkle removal device of the strain pipe insertion method. The method of claim 1, The repair means And a packer member connected to the compressor for generating a pressure and supplied with a predetermined pressure from the compressor for a predetermined time to remove wrinkles by the expansion pressure. Wrinkle removal device of the strain pipe insertion method. The method of claim 7, wherein The pressure supplied to the packer member to remove wrinkles of the liner is 3kg / cm 2 to 4kg / cm 2, and the time is 5 minutes to 7 minutes. Wrinkle removal device of the strain pipe insertion method. The method according to any one of claims 1 to 8, The repair means is connected to the heater means by a connecting member to continuously remove the wrinkles softened by the heater means Wrinkle removal device of the strain pipe insertion method. The method of claim 9, It further comprises a photographing means provided between the moving means or the heater means and the repair means, to grasp the state of the first wrinkles or the liner softened by the heater means. Wrinkle removal device of the strain pipe insertion method. As a wrinkle removal method of the strain pipe insertion method for inserting a flexible liner in the existing buried pipe and inflated to adhere to the inner wall of the buried pipe, and to remove the wrinkles generated on the inner wall of the liner, Inject the heater means to the wrinkles generated on the inner wall of the liner, The heating means supplies the heat source to the wrinkle part for a predetermined time to soften the wrinkle part, Flatten the softened wrinkles by the repair means, Comprising the step of grasping the state of the wrinkles or various devices by the photographing means Wrinkle removal method of strain pipe insertion method. The method of claim 11, Softening the wrinkled portion includes blocking or reducing heat radiation to other portions except the wrinkled portion. Wrinkle removal method of strain pipe insertion method. The method of claim 12, The temperature of the heat source is 450 ℃ to 550 ℃, The time for supplying the heat source to the wrinkled portion by the heater means is 20 minutes to 30 minutes, The softening temperature of the wrinkled portion supplied to the heat source by the heater means is made of 120 ℃ to 150 ℃ Wrinkle removal method of strain pipe insertion method. The method of claim 11, The wrinkle removal step is to remove the wrinkles through the generated pressure to generate pressure Wrinkle removal method of strain pipe insertion method. The method of claim 14, The pressure supplied to the packer member to remove wrinkles of the liner is 3kg / cm 2 to 4kg / cm 2, and the time is 5 minutes to 7 minutes. Wrinkle removal method of strain pipe insertion method. The method according to any one of claims 11 to 15, The photographing means is provided in the moving means, between the heater means and the repair means, or behind the repair means, so as to grasp the state of the first wrinkle, the liner softened by the heater means, or the wrinkle part removed. Wrinkle removal method of strain pipe insertion method. The method of claim 16, By connecting the heater means, the repair means and the photographing means with a connecting member to continuously remove wrinkles Wrinkle removal method of strain pipe insertion method.

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