KR101005330B1 - Impregnating device of liner - Google Patents

Abstract

PURPOSE: A liner impregnation apparatus is provided to streamline pipe repair work by removal in a cold storage space process to prevent the hardening of a liner. CONSTITUTION: A liner impregnation apparatus(100) comprises a production portion(300), an impregnation portion(400), and a tool container(200). The production portion manufactures impregnation solution for impregnating the liner. The impregnation portion comprises an impregnation solution storage space, an inlet, an outlet, and rollers. The rollers transfer liner with contacting the liner. The rollers are installed at a right angle to the transfer direction of the liner. The tool container comprises an electric motor, a coolant container, a compressor, and a controller(C). The electric motor controls the rotation of the roller in order to transfer the liner. The coolant container maintains the temperature of the impregnation portion and the production portion below the constant temperature. The compressor transfers the impregnation solution to the impregnation portion.

Description

Liner Impregnation Device {Impregnating Device of Liner}

The present invention relates to a liner impregnation device, and more particularly to a liner impregnation device for impregnating the liner with the impregnation liquid cured at room temperature.

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 work to repair water and sewage pipes or gas pipes buried underground increases the cost of social losses such as heavy 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 pipeslinig, fold and form linig, spirally wound pipes linig, and cured in place. pipe). Recently, the reinforcement tube hardening method is the most attention, and various technologies are being developed in various countries around the world.

The reinforcing tube curing method is a method of thermally curing the liner produced by impregnating a resin in a polymer coating nonwoven fabric using hot air or hot water.

There are two ways to repair non-excavated pipes using liner. The difference between this method is the method of arranging the liner in the pipe. Looking at this, the traction method is a method of transporting the liner by dragging it into the pipe, and the inversion method injects a strong pressure to the liner to turn the liner upside down. It is a way to feed up to the end of. Traction may cause breakage because the liner is dragged inside the pipe, but the equipment used there is a relatively simple advantage, while the reverse method does not cause the liner to break, but the equipment is relatively large, which impedes the flow of traffic. And there is a problem that also increases the repair cost of the pipe.

In this embodiment, a line repairing method by a traction method is used to inject air into the liner so that the outer surface of the liner is in contact with the inner wall of the pipe after the liner is transferred into the pipe to be repaired through the manhole. After that, when the liner is cured at room temperature, the repair of the pipe is completed. The process of transferring the liner to the pipe is performed by transferring the liner from the inlet of the pipe to the outlet of the pipe by dragging the liner.

However, this conventional technology has the following problems.

According to the prior art, the liner is manufactured at the factory and transported to the site for use. Therefore, in consideration of the length of the pipe, the thickness of the pipe, the moving time, etc. before the production of the liner, there is a problem in that the work is cumbersome such as transferring the liner to the site after the production of the liner.

In addition, when the liner is transported to the site, the additives must be put together to prevent the liner from curing, and the work process becomes cumbersome, such as moving in the cold storage in consideration of the moving time, and the construction work is carried out due to bad weather and traffic volume of the site. If not, there is a problem that often requires the disposal of the liner already impregnated.

The present invention is to solve the problems of the prior art as described above, to provide a liner impregnation device that can be manufactured directly in the field where the liner repair work is required.

The present invention for solving the problems of the prior art as described above is a manufacturing unit for manufacturing an impregnation liquid for impregnating a liner is formed a predetermined space therein; A space is formed therein so as to store the impregnation liquid manufactured by the manufacturing unit, and is communicated with the manufacturing unit by a pipe, and the inlet and the outlet through which the liner enters and exits are formed therethrough, and the liner contacts the liner. A plurality of rollers for conveying are provided in a direction orthogonal to a conveying direction of the liner, and an impregnating part having an impregnating solution spraying table for injecting an impregnating liquid into the liner to impregnate the liner; An electric motor for controlling the rotation of the roller to transfer the liner from the impregnation unit, a refrigerant tank for maintaining the temperature of the manufacturing unit and the impregnation unit below a predetermined temperature, and the impregnation liquid manufactured by the manufacturing unit is transferred to the impregnation unit. Compressor is provided for transporting, and comprises an apparatus box having a controller for controlling the impregnation process of the liner by controlling the compressor, the electric motor, the refrigerant cylinder and the manufacturing unit.

The roller is composed of an upper roller and a lower roller which are installed to be spaced apart from each other by a certain distance, the compression roller for conveying the liner between the upper roller and the lower roller to compress the liner; It may include a feed roller which is hooked to the interruption of the liner and is provided at a height lower than the height of the impregnation liquid from the impregnation portion so that the liner is immersed in the impregnation liquid.

The impregnation part may further include an impregnation liquid spraying table communicating with the manufacturing part to inject the impregnation liquid manufactured by the manufacturing part into the liner.

A lower portion of the outlet of the impregnation portion may be further provided with a fixing portion for fixing the most end of the impregnated liner.

One side of the liner may further include a placement roller is placed to surround the outer surface to place the liner inside the pipe.

According to the present invention, the liner can be manufactured directly at a construction site without having to manufacture and transport the liner separately. Therefore, there is no need to manufacture the liner separately in the factory, thereby reducing the transportation cost of the liner, and there is no need to refrigerated to prevent the liner from curing during the transfer of the liner, and to add a separate additive to prevent the liner from curing. There is no need for additional work and additional costs, such as putting, reducing the cost of plumbing repair work, and has the effect of simplifying the plumbing repair work procedure.

1 is a perspective view showing a state of the liner impregnation device according to an embodiment of the present invention.
Figure 2 is a front view showing a state of the liner impregnation device according to an embodiment of the present invention.
Figure 3 is a partial cross-sectional view showing a state of the liner impregnation device according to an embodiment of the present invention.
Figure 4 is a partial cross-sectional view showing a state of the impregnation part constituting an embodiment of the present invention.
5 is a plan view showing a state of the impregnation part constituting an embodiment of the present invention.
Figure 6 is a perspective view showing a state of the impregnation part constituting an embodiment of the present invention.
7 to 12 is a flowchart showing a process of repairing the pipe using the liner impregnation device according to an embodiment of the present invention.

Hereinafter, a configuration of a liner impregnation device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is a perspective view of a liner impregnation device according to an embodiment of the present invention, Figure 2 is a front view of the liner impregnation device according to an embodiment of the present invention, Figure 3 shows the present invention The shape of the liner impregnation device according to one embodiment is shown in partial cross-sectional view, Figure 4 is a partial cross-sectional view of the impregnation portion constituting an embodiment of the present invention, Figure 5 constitutes an embodiment of the present invention The impregnation is shown in plan view, Figure 6 is a perspective view of the impregnation constituting an embodiment of the present invention, Figure 7 is a liner is discharged from the impregnation constituting an embodiment of the present invention A flow chart showing a process of installing the post-roller roller is shown, and FIG. 8A shows a configuration of the batch roller constituting an embodiment of the present invention in a perspective view. The state in which the roller arrangement constituting the present invention, an embodiment is installed in the pipe is shown in a perspective view.

The liner impregnation device 100 is a device for impregnating a liner L for repairing a pipe. The liner L is basically formed of a material which absorbs moisture, such as a nonwoven fabric. The liner L is manufactured. Such a process is generally made in a factory, but the liner impregnation device 100 may be used to directly use the same at a construction site.

Liner impregnation device 100 is largely composed of the equipment box 200, the manufacturing unit 300, the impregnation unit 400. Equipment box 200 is a portion where the equipment necessary for the liner (L) impregnation process is located. As shown in FIG. 3, the compressor 210, the electric motor 220, and the coolant cylinder 230 are located inside the equipment box 200. Refrigerant cylinder 230 serves to maintain the temperature of the impregnation unit 400 and the manufacturing unit 300 to be described below below a predetermined temperature, the compressor 210 is impregnated liquid manufactured in the manufacturing unit 300 to be described later It serves to transfer to the impregnation unit (400). The bottom surface of the equipment box 200 is provided with a roller (H) may be so that the liner impregnation device 100 can be smoothly transferred.

The outer wall of the equipment box 200 may be provided with a controller (C). The controller C controls each of the equipment located in the equipment box 200 and the manufacturing unit 300 to be described later to control the impregnation process such as the speed and the impregnation amount of the liner L is manufactured.

Reference numeral 300 is a manufacturing unit. The manufacturing unit 300 is a part for manufacturing an impregnation liquid for curing the liner (L). The impregnation liquid may be a low-temperature curable resin that is cured over time even without applying additional heat at room temperature.

Since the impregnation liquid is cured at room temperature, it is necessary to control the temperature lower than room temperature. Therefore, by flowing the refrigerant of the refrigerant container 230 provided in the equipment box 200 to maintain the temperature of the manufacturing unit 300 below a certain temperature, and therefore the impregnation liquid in the manufacturing unit 300 is not cured to a liquid state Will remain.

In this way, the impregnation liquid manufactured by the manufacturing unit 300 is moved to the impregnation unit 400. Although not shown, the manufacturing unit 300 and the impregnation unit 400 are connected by a pipe, and the impregnation liquid is transferred from the manufacturing unit 300 to the impregnation unit 400 through the pipe.

The impregnation part 400 is a part where the liner L is impregnated with the impregnation liquid, and is a part that is to be absorbed evenly by the impregnation liquid.

The inlet 410 and the outlet 420 are formed on the side surfaces of the impregnation part 400 facing each other. Liner L is inserted through inlet 410 and discharged through outlet 420 after being impregnated. The plate may be formed to extend at the lower end of the outlet 420, at which time the plate serves to guide the liner L discharged from the outlet 420.

The impregnation unit 400 has a tubular shape in which a space is formed therein, and the impregnation liquid produced by the manufacturing unit 300 is filled therein and the impregnation of the liner L occurs. The impregnation part 400 is provided with a plurality of rollers 430 and 440 to be rotatable.

The rollers 430 and 440 are largely divided into a compression roller 430 and a feed roller 440. The extrusion roller is composed of an upper roller 430a and a lower roller 430b, and the upper roller 430a and the lower roller 430b are installed to be spaced apart from each other by a predetermined distance between the upper roller 430a and the lower roller 430b. The liner L is conveyed. Compression roller 430 is a portion in which the liner L is inserted and compressed so that the liner L can be sufficiently impregnated with an impregnation liquid. If the impregnation liquid is excessively impregnated, an appropriate amount of the impregnation liquid is present in the liner L. It serves to adjust, the feed roller 440 is provided at a height lower than the height of the impregnation liquid in the impregnation unit 400 serves to allow the liner (L) to be immersed in the impregnation liquid.

As shown in FIG. 6, according to the present exemplary embodiment, a part of the compression roller 430 adjacent to the inlet 410 side and the outlet 420 side of the compression roller 430 extends to the outside of the impregnation part 400. One side of the extended driving gears 470 are provided. The drive gear 470 is connected by the chain (K) is provided to rotate together at the same speed. In addition, the connecting roller 490 is further provided on the compression roller 430 installed at the inlet 410 side. The connecting gear 490 is not shown, but is connected to the electric motor 220 is a portion to which the rotational force of the compression roller 430 is transmitted. The compression roller 430 is rotated by the electric motor 220, and the compression roller 430 on the outlet 420 side also rotates by the rotation of the compression roller 430 on the inlet 410 side. The liner L is impregnated in the impregnation liquid by the rotation of the compression roller 430, and thus may be transferred from the inlet 410 to the outlet 420.

In this embodiment, two feed rollers 440 are provided between the three compression rollers 430 and each of the compression rollers 430, which can be adjusted according to the size and size of the impregnation part 400. will be.

The impregnation part 400 is provided with an impregnation liquid jet 450. The impregnating liquid spray table 450 is a portion for directly injecting the impregnating liquid into the liner L. The impregnating liquid spray table 450 is provided with a plurality of nozzles 455 in a direction toward the liner L. The impregnating liquid manufactured by the manufacturing unit 300 passes through a pipe (not shown), is transferred to the impregnation liquid spraying table 450, and discharged to the liner L through the nozzle 455. The impregnation liquid discharged into the liner L is partially impregnated in the liner L and the other is accumulated in the impregnation part 400 again.

Looking at the process of the liner impregnated by the liner impregnation device 100 according to an embodiment of the present invention, the liner L introduced through the inlet 410 is a compression roller 430-feed roller 440 -Compression roller 430-Feed roller 440-It is conveyed in the order of the compression roller 430 and discharged to the outlet 420. In this process, the liner L is impregnated with the impregnation liquid discharged from the impregnation liquid injection table 450 or impregnated with the impregnation liquid stored in the impregnation part 400. When passing through the compression roller 430, the impregnation liquid excessively impregnated in the liner (L) is discharged by the pressure is controlled by the amount, the impregnation liquid is impregnated evenly to the inside of the liner (L) by the pressure. It is impregnated evenly over a number of compression rollers 430, and the appropriate amount of impregnation liquid is impregnated into the liner (L).

The fixing part 425 is provided below the outlet 420 in the impregnation part 400. The fixing part 425 is a portion at which the uppermost end of the impregnated liner L is fixed, and the placement roller 500 to be described later is fixed to the liner L at the uppermost end of the liner L fixed to the fixing part 425. It is placed on the bottom of the pipe while being transported in a suspended state. The arrangement process of the liner L will be described later. The fixing part 425 may have various fixing structures such as clips and tongs, and the fixing part 425 may be formed on the bottom surface of the plate formed on the outlet 420 side.

Reference numeral 500 denotes a placement roller. Batch roller 500 is fitted to the stop portion of the liner (L) serves to transport the liner (L).

The impregnated liner L is discharged to the outlet 420. The liner L discharged to the outlet 420 fixes the uppermost end to the fixing part 425. In this state, the operator places the roller 500 on a part of the lower surface of the liner L (when produced from the liner impregnating device 100 among the two sides of the liner, the surface facing the ground and the opposite surface is called the upper surface). Install).

Hereinafter, a process of repairing a pipe using a liner impregnation device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

7 to 12 is a flow chart showing the process of repairing the pipe using the liner impregnation device according to an embodiment of the present invention.

Referring to FIG. 7, the worker inspects the inside of the pipe 20 that needs repair and performs a cleaning operation to remove the foreign matter therein.

After that, the operator places the liner impregnation device 100 in a position close to the pipe to be repaired. After the liner impregnation device 100 is transferred, the liner L is cut to fit the length of the pipe to be repaired. The cut liner L is transported by the operator holding the top of the liner L so as to walk well on the compression roller 430 and the transfer roller 440 through the inlet 410 of the impregnation part 400. As the liner L is transferred, the impregnation liquid is injected into the liner L from the nozzle 455 of the impregnation spray table 450, and the liner L is impregnated with the impregnation liquid. The liner L is properly compressed as it passes through the compression roller 430 so that the impregnation liquid is deeply impregnated to the inside of the liner L, and the impregnation liquid is prevented from being excessively impregnated with the liner L. The liner L passed through the compression roller 430 is properly impregnated, discharged toward the outlet 420, and completed. As such, the liner impregnation device 100 can be easily manufactured in the field, so that the liner L does not need to be manufactured and transported separately, and no additional additives need to be added to prevent the liner from curing during the transfer process. There is no need to freeze to prevent the cost, such as the cost of plumbing repair work is significantly reduced. In addition, there may be a situation in which construction is canceled due to bad weather and traffic conditions, in which case it is necessary to dispose of the liner (L) that has already been manufactured at the factory and discarded. Since the impregnated liner L is used, there is no such problem.

Next, referring to FIG. 8, the liner L is inserted into the pipe 20. At this time, the liner L is transferred to the pipe 20 together with the placement roller 500. As described above, the batch roller 500 is placed on the bottom surface of the middle part of the liner L, that is, a part of the bottom surface of the liner L wraps around a part of the outer surface of the batch roller 500. ), And then the batch roller 500 is transferred so that the liner L is conveyed together.

While the liner L is gradually produced, the liner L is transferred to the inlet portion of the pipe 20 through the manhole 40a together with the placement roller 500.

Subsequently, referring to FIG. 9, 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, high or low temperature air may be injected to control the curing time of the resin.

Subsequently, referring to FIG. 10, in order to cure the resin included in the liner L, the expanded liner L is maintained for a predetermined time to cure in the expanded state.

Subsequently, referring to FIG. 11, both ends of the cured liner L are cut to form a pipe passage therein.

Finally, referring to FIG. 12, 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.

The scope of the present invention is not limited to the embodiments described above, but is defined by the claims, and various changes and modifications can be made by those skilled in the art within the scope of the claims. It is self evident.

100: liner impregnation device 200: device box
210: compressor 220: electric motor
230: refrigerant container 300: manufacturing unit
400: impregnation 410: entrance
420: exit 430: compression roller
440: feed roller 500: batch roller
L: Liner C: Controller
K: Chain

Claims (5)

A manufacturing unit for forming an impregnation liquid for impregnating a liner by forming a predetermined space therein;
A space is formed therein so as to store the impregnation liquid produced by the manufacturing unit, the liner is impregnated, communicated with the manufacturing unit by a pipe, and the inlet and the outlet through which the liner enters and exits are formed, and the liner An impregnation portion in which a plurality of rollers which are in contact with each other to transport the liner are provided in a direction orthogonal to a conveying direction of the liner;
An electric motor for controlling the rotation of the roller to transfer the liner from the impregnation unit, a refrigerant cylinder for maintaining the temperature of the manufacturing unit and the impregnation unit at a predetermined temperature or less, and the impregnation liquid prepared by the manufacturing unit as the impregnation unit. Liner impregnating device is provided, comprising a device box for controlling the impregnation process of the liner is provided by a compressor for controlling the operation of the compressor, the electric motor and the coolant container.
The method of claim 1,
The roller,
A compression roller composed of an upper roller and a lower roller installed to be spaced apart from each other by a distance, and the liner being conveyed between the upper roller and the lower roller to compress the liner;
Liner impregnating device is characterized in that it comprises a feed roller which is hooked to the interruption of the liner and is provided at a height lower than the height of the impregnation liquid from the impregnation portion so that the liner is immersed in the impregnation liquid
delete The method of claim 2,
Liner impregnation device, characterized in that the lower portion of the outlet of the impregnation portion is further provided with a fixing portion is fixed to the top end of the impregnated liner
The method according to any one of claims 1, 2 and 4,
Liner impregnating device further comprises a placement roller which is disposed so that one side of the liner surrounds the outer surface to place the liner inside the pipe to be repaired.

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