KR20110128030A - Inversion method for lining material - Google Patents

Abstract

PURPOSE: A pipe lining material inversion method is provided to turn over a pipe lining material by using an outer liner and insert it into a pipe using small reverse pressure. CONSTITUTION: A pipe lining material inversion method is as follows. A pipe lining material(200) is accepted in a containing compartment(110) of square pillar shape. The leading end of the pipe lining material is connected to an inversion nozzle(120) combined in the pipe lining material outlet of the containing compartment. A rear end of the outside liner is airtightly combined in the inversion nozzle to cover the pipe lining material. The pipe lining material is inversed toward lead-in part through the extra length of the outside liner. The reverse pressure is added in the pipe lining material flowed in to the conduit line to reverse the pipe lining material.

Description

Tube lining material inversion method {INVERSION METHOD FOR LINING MATERIAL}

The present invention relates to a pipe lining material reversing method for reversing a pipe lining material for reinforcing and repairing an aging pipe during the aging of a pipe including a sewer pipe, water pipe, industrial water pipe, agricultural water pipe, and the like.

Pipe lines including sewer pipes, water pipes, industrial water pipes, agricultural water pipes, etc., which are buried in the ground, do not excavate old pipes in the ground if they are aged after a long time, Is used to repair the inner wall of the pipeline.

As an example of the conventional pipeline repair method, a tubular lining material impregnated with a curable resin in a tubular resin absorbent material whose outer surface is hermetically covered with a plastic film is reversibly inserted into an old pipe, and then the inside of the lining material is pressurized to press the tubing lining material. The old pipe is repaired by maintaining the pressurized state on the inner wall of the old pipe and supplying a heat medium such as hot water or steam into the pipe lining material to cure the pipe lining material.

Here, the method of reversibly inserting the tube lining material into the old pipe includes folding the one end of the tube lining material, attaching it to the inversion nozzle with a fastening band, or the like, by applying a fluid pressure such as hydraulic pressure or air pressure to the inside of the tube lining material. By reversing the ash, it can be introduced into the pipeline.

1 is a view showing a conventional method of inverting the pipe lining material 1 into the pipe line 10 by the head pressure. As shown in Figure 1, by connecting the inverting nozzle (2) to the tip of the tube lining material (1), by supplying water into the tube lining material (1) acting the head pressure, the tube lining by hydrocephalus pressure The ash 1 can be reversed into the conduit 10.

By the way, when using the method of inverting the pipe lining material 1 by using the head pressure in the city area, the head pressure in places where there are obstacles such as electric wires, signs, roofs, arcades, etc. above the ground or road surface. Difficulty in securing

In view of this point, a method of inverting the tube lining material using air pressure has been used, an example of which is shown in FIG. 2A.

Referring to Figure 2a, conventionally, the tube-shaped lining material (1) in the interior, and the lid-type sealed container 20 of the rectangular column shape is secured hermetically sealed by fastening the lid on the top.

That is, the tube lining material 1 is stored in the storage container 20 mounted on the transport vehicle 30, and the connecting tube 22 and the guide tube 23 are connected to the discharge pipe 21 of the storage container 20. do. The tip of the tube lining material 1 is hermetically connected to the inversion nozzle 24 connected to the guide tube 23, and then the compressor 27 is inserted into the storage container 20 so that air pressure acts on the guide tube 22. From the pressurized air. Then, the pipe lining material 1 is inverted by the pressurized air pressure and enters the pipe line 10.

By the way, in the case of using the storage container 20 of the rectangular column shape in this way, there is an advantage that the storage capacity of the tube lining material is large and the long-distance construction is possible, but since the internal pressure is weak, it acts the air pressure necessary to reverse the tube lining material In order to do so, there is a problem of reinforcing the storage container 20 so as not to deform. Further, in the step of reinforcing the storage container 20, the manufacturing cost increases, the weight of the storage container 20 also increases, due to the problem of the loading amount to be loaded on the vehicle 30 during transportation, the tube lining material (1) There is a problem that can not be stored at the maximum storage amount of.

In view of this point, as shown in FIG. 2B, a method of inverting the tube lining material 1 using a sealed container 20 ′ having a strong internal pressure, that is, a cylindrical shape is used. That is, the tubular lining material 1 is wound up and accommodated inside the cylindrical hermetic storage container 20 ', and the end of the tube lining material 1 is tightly fastened to the inversion nozzle 24, and then the cylindrical hermetic storage type is received. By supplying pressurized air from the compressor 27 into the vessel 20 ', the tube lining material 1 was inverted by the pressurized air and inverted into the conduit 10 so as to enter.

By the way, in the reversal method using the conventional cylindrical hermetic storage container 20 'as shown in FIG. 2B, the height limit of traffic is limited when the storage container 20' is mounted on the transport vehicle 30 and moved. As a result, the diameter of the storage container 20 'is limited. Therefore, there is a problem in that the construction length is greatly reduced because the storage amount for receiving the pipe lining material 1 into the cylindrical sealed container 20 'is greatly reduced.

As shown in FIGS. 2A and 2B, the storage containers 20 and 20 'for reversing using the pressurized air use the method of supplying the pressurized air therein. There is a problem in that the shape or size of (20,20 ') is limited.

In addition, in the case of the tube lining material (1), the structural design is designed to withstand the load of external pressure or internal pressure in the long term, the deeper the buried depth of the pipe (10), the larger the diameter, the higher the internal pressure tube lining material (1) The thickness of the plate also becomes thick. Thus, the thicker the plate thickness of the tube lining material 1, the more limited the storage capacity of the tube lining material 1, there is a problem that long distance construction is impossible.

In view of this, a rectangular cylinder type storage container may be used to accommodate and invert the tube lining material for a longer time. However, since the rectangular cylinder type storage container is weaker in pressure resistance than a cylindrical sealed container, it is reversed. There is a problem that does not apply a great pressure.

In addition, when the pipeline 10 is installed horizontally with respect to the ground surface or the road surface, the pipeline 10 through the pipe lining material 1 through a manhole or tunnel 11 perpendicular to the ground surface or the road surface. It is inverted to the inside, which is subjected to very large reversal pressure in the bent portion (bend) between the manhole or the tunnel 11 and the conduit 10, and thus many restrictions in the selection of the storage containers 20, 20 'accordingly. There is a problem receiving.

Therefore, there is an urgent need for a reversal method that can accommodate the tube lining material as long as possible and invert the tube lining material into the pipeline even with a small inversion pressure.

The present invention has been made in view of the above, and an object thereof is to provide a pipe lining material reversing method which can easily invert and introduce a pipe lining material into a pipeline even at a small inversion pressure.

In order to achieve the above object, the tube lining material inverting method includes stacking tube lining material in a rectangular cylinder-shaped storage container, and storing the tube lining material in a reverse nozzle coupled to the outlet of the tube lining material of the storage container. Preparing to connect the tip; A first pulling-in step of introducing the outer liner into the inside of the pipe to be repaired, leaving the length corresponding to the free length and the inlet portion on the ground; Coupling a rear end of the outer liner to maintain airtightness with the inversion nozzle to cover the tube lining material; A first inversion step of inverting the pipe lining material to the inlet part after passing the clearance length of the outer liner; A second pulling-in step of pulling the tube lining material, which is primarily inverted in the outer liner, together with the outer liner to the inlet of the conduit; And a second inversion step of inverting the secondary by applying an inversion pressure to the pipe lining material introduced into the pipe.

Here, in the step of entering the outer liner into the conduit, it is preferable to connect the towing rope to the front end of the outer liner, so that the towing rope comes out to the other side exit of the conduit to the winch.

Further, in the first inversion step, inverted auxiliary ropes are pre-installed inside the front end of the tube lining material, and pressurized air is applied to the tube lining material while the reverse auxiliary ropes are pulled out through a hole formed in the outer liner. It is good to tow together the reverse auxiliary rope when supplying.

In addition, the second drawing step, the step of exhausting the pressurized air supplied to the tube lining material in the first inversion step; Towing the outer liner in an exhausted state such that the inverted portion of the outer liner and the tube lining material enters the inlet of the conduit together; And moving the vehicle in which the storage container is mounted in the traction direction of the outer liner.

In addition, the second inversion step, the step of supplying the head pressure and air pressure together until the rear end of the pipe lining material enters the conduit to invert; And after the rear end of the pipe lining material enters the conduit, supplying only the air pressure to completely invert the pipe lining material.

The second inverting step may further include dumping up the storage container to maintain the discharge angle of the tube lining material inclined.

In the second inversion step, the tip of the tube lining material may be supported using an inversion guide.

In addition, in at least one of the first inversion step and the second inversion step, it is preferable to maintain the inside of the outer liner in a vacuum state.

According to the method of inverting the tube lining material according to an embodiment of the present invention, the tube lining material is accommodated as much as possible in a rectangular column-shaped storage container capable of storing as much of the tube lining material as possible without being limited in height during transportation. In this state, it is possible to reverse the tube lining material by simultaneously acting the head pressure and air pressure, it is possible to invert the tube lining material by supplying a small air pressure irrespective of the rectangular column-shaped storage container vulnerable to high pressure.

In addition, by storing a larger amount of pipe lining material than in the prior art and using it for repairing the pipeline, the total length of the pipeline to be repaired at one time is longer than before, thereby reducing construction time and cost. The traffic control time required for the city can be reduced, thereby minimizing traffic congestion.

In addition, after the pipe lining material is not directly inverted into the pipeline, the inlet line is first inverted into the outer liner by using the outer liner, and then the outer liner is pulled to draw the inverted portion of the tube lining material into the pipeline inlet. The large reversal pressure required for reversal is not required. Therefore, even with a small reversal pressure there is an advantage that can be drawn by inverting the pipe lining material into the pipe.

In addition, when the tube lining material is inverted, the container is dumped up from the transport vehicle, so that the angle of bending between the tube lining material and the manhole discharged from the container can be reduced, so that it can be easily reversed with a small inversion pressure. .

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view for explaining a method of inverting a tube lining material by conventional head pressure.
Figure 2a is a view for explaining a conventional method for inverting the tube lining material by applying air pressure to the rectangular columnar storage container.
Figure 2b is a view for explaining a conventional method for inverting the tube lining material by applying air pressure to the cylindrical storage container.
3 is a view for explaining a state in which the tube lining material is accommodated in a rectangular pillar-shaped storage container.
4 is a view illustrating a state in which the tube lining material is accommodated in the container in the state of FIG. 3 and the reversal preparation is completed.
5 is a view for explaining a state of inverting the tube lining material of the storage container into the outer liner first.
FIG. 6 is a view for explaining a state of primarily inverting a tube lining material into an outer liner by using an inversion auxiliary rope; FIG.
7 is a view for explaining a process of drawing the inverted portion of the pipe lining material to the pipe inlet by pulling the outer liner.
8 is a view for explaining the process of inverting into the pipeline by acting the head pressure and air pressure on the pipe lining material together.
9 is a view for explaining a process of completely inverting into the pipeline by acting only the air pressure on the pipe lining material.
10 is a view for explaining a process of curing the pipe lining material in the pipeline.

Hereinafter, a method of inverting a tube lining material according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 3, first, the tube lining material 200 is accommodated through an open upper portion of the main body 111 of the sealed storage container 110 having a rectangular pillar shape.

Here, the tube lining material 200 may have a configuration in which the resin absorbing sheet formed of the polyester nonwoven fabric or the glass fiber composite polyester nonwoven fabric is sealed and processed into a tubular shape.

And the plate thickness of the pipe lining material can be arbitrarily adjusted by overlapping a plurality of said resin absorption sheets. The outer surface of the resin absorbent sheet processed into a tubular shape is hermetically covered with a plastic film such as polyethylene, polyurethane, or polyethylene / polyamide composite film. Here, the thickness of the film may be set to 0.1mm to 2.0mm.

A tubular lining material 200 is produced by impregnating a liquid resin such as epoxy resin, unsaturated polyester resin, vinyl ester resin, and the like with a tubular resin absorbent material whose outer surface is covered with a plastic film. The rear end 210 of the pipe lining material 200 may be airtightly fixed by installing an air discharge valve (not shown), and an end hook 220 may be installed at the rear end 210 to connect the heat medium supply pipe 181. Can be.

Meanwhile, prior to accommodating the tube lining material 200 in the main body 111 of the storage container 110, first, the heat medium supply pipe 181 is first folded and stored in the inner bottom of the main body 111. At this time, one end of the heat medium supply pipe 181 is connected to the connection hook 117 installed inside the main body 111. And the other end of the heat medium supply pipe 181 is connected to the end hook 220 connected to the rear end of the tube lining material (200).

Here, when the heat medium supply pipe 181 completely inverts the pipe lining material 200 into the pipe line 10, the pipe lining material 200 is formed along the rear end 210 of the inverted pipe lining material 200. ) Is located inside the heat medium, that is, for spraying hot water vapor or water to cure the pipe lining material 200 on the inner wall of the pipe line 10. Since the heat medium supply pipe 181 is known in the art, a detailed configuration is omitted.

The tube lining material 200 is sequentially sent from the open upper portion of the main body 111, and accommodated to be stacked in a zigzag fashion before and after.

When the storage of the tube lining material 200 is completed, as shown in FIG. 4, the lid 112 of the storage container 110 is coupled to cover the open upper portion of the main body 111 to be hermetically fastened. At this time, a packing member for maintaining airtightness is interposed between the coupling portion of the main body 111 and the lid 112, and may be firmly fastened by a fastening member including a bolt and a nut.

And the front end 230 of the received tube lining material 200 is folded so as to be inverted and fastened to the reversal nozzle 120 coupled to the tube lining material outlet 113 of the main body 111, with a belt or fastening band 121. Attach it airtight. Here, the pipe lining material outlet 113 is provided with a guide roller 115 for guiding the pipe lining material 200 which is inverted and discharged.

After storing the tube lining material 200 inside the storage container 110 as described above, the storage container 110 is loaded on the transport truck 30 and transported to the construction site.

Here, when the temperature in conveyance exceeds 10 degreeC, it is preferable to cool the pipe lining material 200 with ice etc. In addition, by having the storage container 110 has a heat insulating structure, even if the outside temperature is approximately 15 ℃ or more it can be transported in a low temperature state.

Meanwhile, referring to FIGS. 5, 6 and 7, after the construction site is cleaned inside the pipeline 10, the tow rope 410 is connected to one end of the outer liner 400 separately provided to connect the interior of the pipeline 10. In with And the towing rope 410 is connected to the winch 420 is installed on the ground exits the other side of the pipeline 10.

The other end of the outer liner 400 is coupled to the inversion nozzle 120 to cover the tube lining material 200 coupled to the inversion nozzle 120, and is fastened to maintain airtightness with a fastening band or the like.

On the other hand, when the traction rope 410 is connected as described above when the outer liner 400 is first introduced into the conduit 10 to be repaired, the clearance length L1 and the inlet part L2 are left on the ground and the conduit 10 ) Into.

The outer liner 400 does not necessarily need to be prepared as long as the entire length of the conduit 10, and should be prepared longer than at least the lengths of the clearance length L1 and the inlet portion L2.

Subsequently, pressurized air is supplied to the storage container 110 through the compressor 270, and as shown in FIG. 5, the tube lining material 200 is first reversely inserted into the outer liner 400 located on the ground. Let's do it. That is, the pipe lining material 200 is reversed to a part of the inlet part L2 past the clearance length L1.

In addition, when the plate thickness of the tube lining material 200 is expected to be thick and the reversal pressure is high, as shown in FIG. 6 in the inside of the tube lining material 200 by a length that is reversed from the ground in advance, the reverse auxiliary rope ( 420) can be stored.

At this time, the reversal auxiliary rope 420 calculates the length of the reversal insertion of the tube lining material 200 on the ground first, and the hole in the outer liner 400 at a position spaced apart from the reversal nozzle 120 by the calculated length. Form. In addition, the inverted auxiliary rope 420 passing through the inner liner 400 is formed in the outer liner 400 to pass through the hole, which is placed outside the outer liner 400. When the tube lining material 200 is first inverted, the inversion auxiliary rope 420 is pulled together in the direction of the arrow to assist the inversion pressure necessary for inversion so that the inversion can be easily performed. Therefore, the tube lining material 200 can be inverted primarily with a small inversion pressure.

Therefore, by storing a large amount of the tube lining material 200 in the storage container 110 having a rectangular column shape having a relatively weak internal pressure compared to the cylindrical shape, it is possible to reverse the tube lining material 200 with a small pressure do.

In addition, in the part for primary reversal, in order to enable reversal even with a small reversal pressure, the plate | board thickness of the tube lining material 200 may be set thin, and the plate | board thickness of the outer liner 400 may be made to advance.

On the other hand, after inverting the tube lining material 200 to the inside of the outer liner 400 as described above, the pressurized air applied to the inside of the storage container 110 is released. At this time, if necessary, a vacuum pump (not shown) may be used to quickly exhaust the gas by force or natural exhaust.

As such, after releasing the pressurized air applied to the inside of the pipe lining material 200, the towing rope 410 prepared in advance at the other end of the pipe line 10, as shown in FIG. 7, by using the winch 420. By pulling, the outer liner 400 and the pipe lining material 200 are drawn together to the inlet of the pipe line 10. At this time, preferably in the direction of the arrow in Fig. 7, that is, in the traction direction, the transport vehicle 30 mounted with the storage container 110 is reversed, so that the pipe lining material 200 and the outer liner 400 are more easily connected to the pipeline ( 10) can be entered into.

In addition, when the outer liner 400 and the tube lining material 200 are exhausted, the final point of entry into the pipe line 10 is to dump up the container 110 and lift the tube lining material 200. ) Can be inserted obliquely into the inlet of the manhole (11), it can be introduced into the pipeline 10 more naturally and easily.

That is, when the tube lining material 200 connected to the reversal nozzle 120 installed in parallel with the ground surface or the road surface is inserted into the manhole 11 perpendicular to the ground surface or the road surface, the angle is approximately 90 degrees. The tube lining material 200 is bent. Therefore, by allowing the pipe lining material 200 to be discharged obliquely from the reversal nozzle 120, it is possible to reduce the increase in reversal resistance by bending the manhole 11, thereby reducing the pipe lining material 200 with a small force. ) Can be entered into.

In addition, as described above, the tube lining material 200 is first inverted into the outer liner 400 to enter the inside, and after exhausting the pressurized air, the outer liner 400 is pulled out and the tube lining into the pipe line 10. By entering the inverted tip portion of the ash 200, it is possible to naturally enter the tube lining material 200 into the conduit 10 without applying a large inversion pressure. That is, in the case of supplying pressurized air to the pipe lining material 200 and inverting it by pneumatic pressure to pass through the bent portion (flexion part) of the conduit 10 and the manhole 11, a very large inversion pressure at the bend part is required. Since it is necessary, as described above, the inversion of the tube lining material 200 is not easy by using the storage container 110 of the rectangular column shape weak to internal pressure. Therefore, as in the embodiment of the present invention, after inverting the tube lining material 200 primarily in the outer liner 400, the pipe line in the inverted state by the traction force instead of the air pressure in the exhaust state (10) By entering the inlet, it is possible to avoid the reversal operation in the bent portion that requires a large reversal pressure, it is possible to safely enter the pipe lining material 200 into the inlet 10 of the pipeline with a small force.

Meanwhile, as described above, when the inverted portion of the tube lining material 200 enters the inlet of the pipe line 10 by using the outer liner 400, the preparation of the inversion of the tube lining material 200 is completed. As described above, while supplying water from the water supply unit 500 through the water supply port 130 provided in the storage container 110, at the same time driving the compressor 270 to receive the storage container through the pressurized air supply port 140 ( 110 to supply pressurized air.

Here, the water supply unit 500 supplies water by connecting the water tank 520 mounted on a separate transport vehicle 510, the water tank 520 and the water supply port 130 of the storage container 110. It is provided with a water supply pipe 530 and a water supply pump 540 connected to the water supply pipe 530. Therefore, by moving the water supply unit 500 to the construction site, by supplying water to the storage container 110 in a state where the reversal preparation is completed, it is possible to act the head pressure to the pipe lining material 200 with the air pressure. .

By simultaneously supplying the head pressure and the air pressure, the pipe lining material 200 can be reversibly introduced into the pipeline 10 in a secondary manner.

Here, as shown in FIG. 8, the height H of the head (water surface) from the bottom of the pipeline 10 can ensure a sufficient height. Here, the head is different depending on the construction conditions, but as shown in Fig. 8, H = h1 + h2 = 1.5 m + 1.0 m or more = 3.5 m or more, so that the head pressure of approximately 3.5 m can be ensured. And when the embedding depth h2 of the pipe line 10 deepens, the head pressure which can be ensured also becomes large. Due to this action, the maximum working pressure of the rectangular cylinder-shaped storage container 110 can be set within 0.117 pa suitable for low-pressure equipment, it is possible to manufacture a safe and lightweight storage container 110. In addition, the storage amount of the tube lining material 200 can be increased.

In such a state that the head pressure is secured, the pipe lining material 200 is inverted into the pipe line 10 while the air pressure is applied to the head (water surface).

When the tube lining material 200 is inverted by acting together the head pressure and the air pressure in this manner, it is possible to obtain a greater effect as compared with inverting only the head pressure or air pressure as in the prior art. That is, when trying to invert the pipe lining material 200 only by the head pressure in the city, height is required to secure the head pressure, and the height is limited by obstacles such as wires, roofs, signs, and arcades. In addition, if the tube lining material 200 is accommodated in the storage container 110 and is inverted only by the air pressure, the pipe lining material 200 is not suitable as the storage container 110 of the square pillar type having a weak internal pressure. In the case of using a cylindrical storage container, as described in the prior art, it is impossible to store the tube lining material in a sufficient length due to the height limitation during transportation.

Therefore, by acting together the head pressure and air pressure, it is possible to invert the tube lining material 200 to a small pressure by using a rectangular cylinder-type storage container 110 that can secure a large amount of storage, although the internal pressure is weak. . For example, the pressure required to invert a tube lining material having a plate diameter of 600 mm and a plate thickness of about 9.0 mm is approximately 0.06 MPa, the head pressure is about 6.0 m, and the pipeline 10 is embedded at a depth of 2.0 m underground from the road. If so, it is necessary to secure the head up to a height of 4.0m above the ground. Therefore, space is required in the range of 3.0 m-5.0 m.

However, when the head pressure and air pressure are used together, the storage container 110 loaded on the transport vehicle 30 can be held at a maximum height from the road surface of 2.5m, and the height of the reverse nozzle 120 is 1.5m to from the road surface. It becomes 2.0m. Therefore, when water is injected into the tube lining material 200, the head pressure (0.0035 MPa) of at least 3.5 m acts on the tube lining material 200 in the sum of the buried depth 2.0 m and the road height 1.5 m to 2.0 m. , The air pressure acting on the rectangular cylinder-shaped storage container 110 is 0.060MPa-0.035MPa = 0.025MPa. Therefore, since the air pressure which normally requires a pressure of 0.06 MPa is 0.025 MPa, the reversal pressure can be greatly reduced.

In addition, by operating the head pressure and air pressure at the same time as described above to maintain the tube lining material 200 in the state in which the container 110 is dumped up using the hydraulic cylinder 32, the tube lining material 200 at the time of inversion Can move naturally.

In addition, as shown in Figure 8, by using a separate inversion guide 600 to support the tube lining material 200 inverted from the storage container 110 to take a stable posture from the inversion pressure to guide the manhole Can be safely moved to (11). The reversal guide 600 is provided with a guide portion 610 for wrapping and supporting the tube lining material 200, and to securely fix the tip of the tube lining material 200 to the guide portion 610 using a rope or the like. It may be.

By inverting the pipe lining material 200 into the pipe line 10 in the same manner as described above, the rear end 210 connected to the end hook 220 enters the pipe line 10 through the manhole 11 as shown in FIG. 9. This eliminates the need for a large reversal pressure. Therefore, in this case, the water supply is stopped and the pipe lining material 200 is inverted until the end hook 220 moves toward the outlet opposite to the pipe line 10 using only the air pressure in the state in which the supply of the head pressure is stopped. That is, as shown in FIG. 10, the inverting is completed by applying pressurized air until all of the rear end 210 of the tube lining material 200 is inverted.

When the reversal of the pipe lining material 200 is completed, the pipe lining material 200 is brought into close contact with the pipe line 10 and cured so as to repair the inner wall of the pipe line 10. The curing process of the tube lining material 200 can be easily performed using a generally known technique, or may be performed using a curing apparatus 800 as shown in FIG. 10.

That is, the curing apparatus 800 includes a transport vehicle 810 on which the compressor 40 and the generator 50 are mounted, and a heat medium supply unit 820 separately provided and mounted on the transport vehicle 810. The heat medium supply unit 820 includes a recovery pipe 821, a hot water tank 823, a pump 824, and a boiler 825. In the boiler 825, the water is heated to supply hot water at a high temperature into the tube lining material 200 through the heat medium supply pipe 181, and the recovery pipe 821 recovers hot water accumulated in the tube lining material 200. The hot water tank 823 is recovered, and the pump 824 pumps the hot water recovered by the hot water tank 823 to the boiler 825 to be circulated.

More specifically, the curing process is as follows.

When the curing apparatus 800 is used as described above, in the state of inversion completed, the inversion nozzle 120 is separated from the storage container 110, and the lid 123 for sealing to the inversion nozzle 120 is clamper 124. It is sealed by fastening by using fastening means. At this time, a packing member (not shown) may be interposed between the reversal nozzle 120 and the sealing lid 123. Then, the air supply pipe connected to the compressor 40 is connected to the sealing lid 123 to supply pressurized air into the pipe lining material 200 to expand the pipe lining material 200, thereby closely contacting the inner wall of the pipe line 10. Let's do it. Thus, the tube lining material 200 is hardened by hardening the tube lining material 200 by spraying and heating hot water or steam of high temperature in the inner circumference of the tube lining material 200 in a state in which the tube lining material 200 is in close contact with the inner wall of the pipe line 10. By forming the plastic pipe, the repair work of the pipe line 10 is completed.

On the other hand, in the case of the outer liner 400 used to be inverted even with a small inversion pressure of the pipe lining material 200 is in close contact with the inner wall of the pipe line 10 together with the pipe lining material 200 and hardened together, ) Can be repaired more firmly.

The pipe lining material 200 will be described in more detail as follows.

In one embodiment, the outer liner 400 may be made of a nonwoven fabric having a function of adsorbing resin. In this case, when the tube lining member 200 is impregnated with a sufficient amount of resin, including excess resin, and the tube lining member 200 is reversely inserted into the outer liner 400, the air in the outer liner 400 is reversed. When the vacuum pump 700 (see FIG. 8) is removed and maintained in a vacuum state, extra resin impregnated in the tube lining material 200 may be impregnated in the outer liner 400. In this way, by including the outer liner 400 to ensure the plate thickness (design thickness of the pipe lining material) necessary for the repair of the actual pipe line 10, it is possible to reduce the thickness of the pipe lining material 200 to be actually reversed Therefore, it is possible to reduce the pressure required at the time of reversal, it is possible to reverse more easily.

In addition, the outer liner 400 itself may be impregnated with a curable resin in advance. In this case, when the tube lining material 200 is later inverted and coupled to the inside of the outer liner 400, the sum of the thicknesses of the outer liner 400 and the tube lining material 200 becomes a plate thickness necessary for reinforcement. Since the thickness of the tube lining material 200 can be reduced, the reversal pressure can be reduced.

In this case, the outer liner 400 may be used by connecting a plurality of, the thickness of each of the plurality of outer liner may be set differently. Therefore, since the thickness of the tube lining material 200 can be arbitrarily adjusted in consideration of the thickness of the outer liner 400, the inversion pressure can be arbitrarily adjusted, and thus, the long length of the tube lining material 200 is provided to provide a long distance. Construction is possible.

As another example, the outer liner 400 may be manufactured by woven a yarn of polyester or polyamide into a tubular shape, or by processing the end of the woven fabric of polyester or polyamide into a tubular shape by sewing.

In addition, the outer liner 400 may be processed into a tubular shape by sealing the ends of the sheet-shaped nonwoven fabric of polyester or polypropylene, and more preferably, by needle-punching a combination of mats of glass fibers for better breathability You can also make.

In addition, the outer liner 400 may be fabricated by sealing the end portion of the sheet in which the nonwoven fabric is composited by needle punching into a woven fabric and processing the tubular shape.

In addition, the outer liner 400 may be manufactured in a hermetic structure in which a plastic film such as polyethylene or polyurethane is coated on a woven or nonwoven fabric, the ends are sealed, and the sealing portion is sealed with a ribbon tape.

When the outer liner 400 is made of a nonwoven fabric as described above, the nonwoven fabric may be an absorbent material of the resin, and thus may be a more preferable material for the purpose of increasing the thickness of the tube lining material 200.

In addition, when the outer liner 400 is made of a woven fabric, since the tensile force after curing of the tube lining material 200 is increased, it is very effective for the repair of the pressure-resistant pipe.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Rather, those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the appended claims.

10. Pipeline 11. Manhole
40..Compressor 50..Generator
110. Storage container 120. Reverse nozzle
123. Airtight lid 130. Water inlet
140. Pressurized air supply port 200. Pipe lining material
220..End Hook 270..Compressor
400. Outer liner 410. Towing rope
420. Inverted auxiliary rope 500
600 .. Inversion guide 800 .. Hardening device

Claims (9)

Stacking and storing the tube lining material in a rectangular cylinder-shaped storage container, and preparing the pipe lining material by connecting a tip of the tube lining material to an inverted nozzle coupled to an outlet of the tube lining material of the storage container;
A first pulling-in step of introducing the outer liner into the inside of the pipe to be repaired, leaving the length corresponding to the free length and the inlet portion on the ground;
Coupling a rear end of the outer liner to maintain airtightness with the inversion nozzle to cover the tube lining material;
A first inversion step of inverting the pipe lining material to the inlet part after passing the clearance length of the outer liner;
A second pulling-in step of pulling the tube lining material, which is primarily inverted in the outer liner, together with the outer liner to the inlet of the conduit;
And a second inverting step of applying the inversion pressure to the pipe lining material introduced into the conduit to invert it in the second order. 2. According to claim 1, In the step of entering the outer liner in the conduit,
And a towing rope connected to the front end of the outer liner, so that the towing rope comes out toward the other outlet of the line and is connected to the winch. The method of claim 1, wherein in the first inversion step,
A reverse auxiliary rope is pre-installed inside the front end of the tube lining material, and the reverse auxiliary rope is pulled together while supplying pressurized air to the tube lining material while the reverse auxiliary rope is pulled out through a hole formed in the outer liner. Pipelining material reversal method characterized in that. According to any one of claims 1 to 3, wherein the second retraction step,
Exhausting the pressurized air supplied to the tube lining material in the first inversion step;
Towing the outer liner in an exhausted state such that the inverted portion of the outer liner and the tube lining material enters the inlet of the conduit together; And
And moving the vehicle in which the storage container is mounted in a traction direction of the outer liner. The method according to any one of claims 1 to 3, wherein the second inversion step,
Supplying the head pressure and the air pressure together until the rear end of the pipe lining material enters the conduit;
And after the rear end of the pipe lining material enters the conduit, supplying only the air pressure to completely invert the pipe lining material. The method of claim 5, wherein the second inversion step,
Dumping up the storage container further comprising the step of maintaining the discharge angle of the tube lining material inclined. The method of claim 5, wherein the second inversion step,
The method of inverting the tube lining material, characterized in that for supporting the front end of the tube lining material using a reverse guide. 4. The method according to any one of claims 1 to 3,
In at least one of the first inversion step and the second inversion step, the tube lining material inverting method, characterized in that to maintain the inside of the outer liner in a vacuum state. According to any one of claims 1 to 3, wherein the outer liner,
A method of inverting a tube lining material comprising a tubular nonwoven fabric whose outer surface is covered with a plastic film.

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