KR101021661B1 - Device for repairing and reinforcing pipe without digging using pe sheet and construction method using the same - Google Patents

Abstract

PURPOSE: A non-excavation pipe repairing and reinforcing apparatus and method using PE(Polyethylene) sheets are provided to quickly repair cracks, partial breakage, and damaged joint parts of pipes using thermosetting resin. CONSTITUTION: PE A non-excavation pipe repairing and reinforcing apparatus comprises a body(110), a barrier wall(120), and a PE sheet(130). The body includes a compression tube(112) which is swelled with air injection so as to press the interior of a pipe(10). The barrier wall comprises a distribution duct(121) which is attached to either side of a drain passage(111) of the body, a sealing tube(123) which is pressed onto the inner periphery of the pipe in order to block the pipe, a nozzle(122) which provides hot air, and a temperature sensor(124) which is installed on the injection side of the nozzle. The PE sheet is formed in the shape of a tube fitted to the exterior of the body and attached to the interior of the pipe.

Description

Device for repairing and reinforcing pipe without digging using PE sheet and construction method using the same}

The present invention relates to an apparatus and a method using the same for the non-excavated pipeline repair reinforcement using a PE sheet, in detail using a PE sheet to quickly repair and reinforce damaged parts such as cracks, partial breakage, joints, etc. The present invention relates to an apparatus for repairing a non-drilling pipeline and a method using the same.

In general, non-excavation repair method refers to a method for repairing abnormal parts in case of various problems that may cause leaks such as partially ruptured pipelines, open joints, or stepped gaps.

In this repair method, the overall repair method is to repair by inserting the synthetic resin pipe into the abnormal part section as a whole, using the adhesive resin solution and the glass fiber to apply the adhesive resin solution to the glass fiber only to impregnate the impregnation and then harden it. There is a lining method for partially repairing, a reinforcing ring method for tightly installing a non-excavation repair member of stainless steel configured to be wound in a cylindrical shape, and the like.

Among the above methods, the lining method can be used to fill the damaged and cracked parts of the pipe that caused leakage compared to other methods relatively cleanly, and since the inside of the pipe is smooth after construction, it has the advantage of minimizing the disturbance of the sewage flow. Has been.

However, in such a lining method, because the lining material coated on the inner wall of the pipeline is liquid or soft and must be secured so as not to fall off until it is cured, it is structurally very weak, causing various problems.

First, the process of coating lining material on the inner wall of the pipeline was quite difficult and complicated, which required expensive equipment and required a lot of construction time.

Second, since the lining material has to be thickly coated to secure the coating strength, the amount of lining material used is large, increasing the construction cost and reducing the diameter. In addition, the curing time of the lining material was considerably taken.

Third, even when the lining material is thickly coated, the structural rigidity is still weak and cracks are generated during the curing of the coated lining material.

Fourth, even after the lining material was cured, the coated lining material was always exposed to the risk of easily falling off the inner wall of the pipeline.

Therefore, in order to solve the problems caused by the lining method, in recent years, an improved lining that hardens and repairs abnormal areas by using a stainless steel sheet configured to be wound in a cylindrical shape inside the repair material in addition to the adhesive resin solution and glass fiber. Partial repair method is used.

Improved lining partial repair method has the advantages of being able to cover the lining material thinner compared to the existing lining method, work process is relatively simple, secure structural rigidity, etc. I was able to solve a large part.

However, the stainless steel sheet used in the improved lining partial repair method had to be provided with a high strength because it had to support all loads by itself without any help from the lining material without self-supporting force.

Furthermore, when repairing medium and large pipes, such as a collecting pipe, a stainless steel sheet having a higher strength had to be provided.

Therefore, due to the high strength of the stainless steel sheet, it is possible to hardly work in the partly curved section of the pipeline, the stepped connection section, or the irregular shape of the inner wall, or another problem that can not expect good quality work performance. .

In particular, when PE sheet such as PE film polyester nonwoven tube is used, the heat of steam is released through the tube exposed between the tube reversal insertion device and the tube to be repaired, resulting in very high fuel loss, and the softening point of the PE film on the tube surface. Because of the low vicinity, it was very difficult to raise the temperature while the air was pressurized inside the tube.

The main object of the present invention is not only to repair and reinforce the damaged parts such as cracks, partial breakage, joints, etc. of the pipe line completely and quickly by using PE sheet, but also to effectively prevent heat loss and to prevent PE film polyester non-woven tube, etc. The present invention provides a non-excavated pipeline repair reinforcement apparatus using a PE sheet and a method using the same.

Another object of the present invention is to fully repair the non-excavated pipe line using PE sheet to completely minimize damage and minimize the defective rate by maximizing the repair reinforcement efficiency of the pipeline by performing a direct heating on the pipe contact surface of the PE sheet. It is to provide a reinforcing device and a method using the same.

In order to achieve the above object, the non-excavation pipeline repair reinforcement method using the PE sheet of the present invention inserts a pipe-shaped PE sheet into the outer periphery of the pressure tube of the body, and then sets the material to move the body to the damaged position of the pipe. And, when the setting step is completed, the heating step of transferring the heat to the PE sheet by injecting hot air through the supply pipe, and after some time after the progress of the heating step to supply air to the supply pipe sealed tube of the blocking wall The expansion step to seal both sides of the damaged part of the pipe, and the hot air is continuously injected through the supply pipe to the inside blocked in the blocking step to heat the PE sheet and at the same time maintain the proper temperature through the temperature sensor. PE sheet is guided to the best repair reinforcement conditions, and the heating completion step to release the heating state when the PE sheet is the best condition, and phase At the completion of the heating phase, the air is supplied to the supply pipe at the same time as the heating state is released, thereby expanding the pressurized tube of the body, which causes the PE sheet inserted into the pressurized tube to be in close contact with the damaged part of the conduit, thereby including a reinforcing reinforcement step of the pipe. It is the basic characteristic on the technical structure which comprised.

On the other hand, the non-excavated pipeline repair reinforcement device using the PE sheet of the present invention is formed by pressing the inner periphery of the pipe by forming a pressure tube on the outer periphery and inflated by the injection of air, respectively before and after the body of the pipe Closely connected to the inner circumference to form a sealed tube to block the pipeline, the barrier wall combined with the nozzle 122 for supplying hot air, and a PE sheet inserted into the outer circumference of the body integrally attached to the inner circumference of the pipeline The configuration is based on the technical features of the configuration.

Non-excavated pipeline repair reinforcement apparatus using the PE sheet of the present invention and a method using the same PE sheet inserted in the outer peripheral edge of the pressurized tube of the body in the state of sealing the both sides of the damaged part of the pipeline by expanding the sealed tube of the blocking wall Heat the contact surface and the damaged part of the pipe to guide it to an optimal state, and then expand the pressure tube to repair and reinforce the damaged part of the pipe, and completely and quickly repair the damaged parts such as cracks, partial damage, and joints of the pipe. Not only can it reinforce, but it effectively blocks heat loss, completely removes the damaged parts, eliminates external interference, and directly repairs the pipeline's tight contact surface of the PE sheet and the inner periphery of the damaged part to make reinforcement of the pipeline more effective. To make it possible.

In addition, the internal temperature blocked by the temperature sensor is sensed in real time to control the amount of high temperature air supply to maintain the proper temperature, and induce the PE sheet to the best repair reinforcement conditions, especially close to the inner circumference of the pipeline Heated directly on the outer periphery of the PE sheet is to improve the reliability and efficiency of the repair reinforcement work.

1 is a perspective view showing to explain the non-excavated pipeline repair reinforcement device using a PE sheet and a method using the same.
Figure 2 is a cross-sectional view showing the installation state for explaining a non-excavated pipeline repair reinforcement device using a PE sheet and a method using the same.
Figure 3 is a cross-sectional view showing a blocking state for explaining a non-excavated pipeline repair reinforcement apparatus using a PE sheet and a method using the same according to the present invention.
Figure 4 is a cross-sectional view showing a heating state for explaining the non-excavated pipeline repair reinforcement apparatus using the PE sheet and the method using the same according to the present invention.
Figure 5 is a cross-sectional view showing a pressure state for explaining the non-excavated pipeline repair reinforcement apparatus using a PE sheet and a method using the same according to the present invention.
Figure 6 is a cross-sectional view showing a front state for explaining a non-excavated pipeline repair reinforcement apparatus using a PE sheet and a method using the same according to the present invention.
Figure 7 is a cross-sectional view showing a maintenance state for explaining a non-excavated pipeline repair reinforcement apparatus using a PE sheet and a method using the same according to the present invention.

As shown in Figures 1 to 7, the non-excavated pipeline repair reinforcement device 100 using the PE sheet of the present invention forms a pressure tube 112 on the outer periphery and expands by injection of air to the inside of the pipeline 10 Body 110 for pressurizing the peripheral edge, and formed before and after the body 110, respectively, in close contact with the inner circumference of the pipeline 10 to form a closed tube 123 for blocking the pipeline 10 and hot air Block wall 120 is coupled to the nozzle 122 to supply, and the PE sheet 130 is inserted into the outer periphery of the body 110 and integrally attached to the inner periphery of the pipe.

The body 110 forms a drain passage 111 penetrating the center and couples the roller 113 to the end of the drain passage 111 to facilitate movement in the pipeline 10.

In this case, the pressure tube 112 of the body 110 communicates with the supply pipe 127 that pressurizes and expands the air.

The blocking wall 120 is integrated by attaching an annular distribution duct 121 to each of the outer circumferential edges of the drain passage 110 and coupling the sealed tube 123 to the outer circumference of the distribution duct 121.

Here, the distribution duct 121 is coupled to the nozzle 122 for injecting a plurality of hot air, but the nozzle 122 is preferably formed to face the pressure tube 112 of the body 110, respectively.

In addition, it is preferable to install a temperature sensor 124 on the nozzle 122 of the distribution duct 121 to sense the temperature in real time.

In addition, it is connected to the supply pipe 125 for supplying hot air or steam of the distribution duct 121 to smoothly supply the desired high temperature air.

Furthermore, the supply tube 126 for injecting and expanding air is communicated to the sealed tube 123 of the blocking wall 120.

The PE sheet 130 is formed in a tubular shape, but the bending line 131 is formed so that the bending state of the bending line 131 is restrained so that the bending line 131 can be converted into a circular shape even with a slight force. Keep your status.

On the other hand, the non-excavated pipeline repair reinforcement method using the PE sheet of the present invention by inserting the pipe-shaped PE sheet 130 in the outer periphery of the pressure tube 112 of the body 110 and then the body 110 to the pipe ( 10) a setting step of moving to a damaged position, a heating step of transferring heat to the PE sheet 130 by injecting hot air through the supply pipe 125 when the setting step is completed, and after the heating step proceeds. After some time, the supply pipe 126 is supplied with air to expand the closed tube 123 of the blocking wall 120 to seal the both sides of the damaged portion of the conduit 10 and the interior blocked in the blocking step Continuously injects high temperature air through the supply pipe 125 to the PE sheet 130 while maintaining the proper temperature through the temperature sensor 124 to guide the PE sheet 130 to the best maintenance conditions And PE sheet 130 is in the best condition heating phase The heating completion step of releasing, and at the same time the heating state is released in the heating completion step to supply air to the supply pipe 127 to expand the pressure tube 112 of the body 110 is inserted into the pressure tube 112 thereby The PE sheet 130 is configured to include a repair reinforcement step of the conduit 10 to be in close contact with the damaged portion of the conduit (10).

In the setting step, the PE sheet 130 is inserted into the outer circumferential edge of the pressure tube 112 of the body 110, and the material is inserted in the state bent by the bending line 131 of the PE sheet 130.

The heating step is preferably heating by supplying hot air or superheated steam.

In the blocking step, the heating tube 122 may be expanded by expanding the sealed tube 122 in a state where the existing air of the supply pipe 125 and the conduit 10 is initially removed to some extent.

At this time, the sewage flows through the drainage passage.

In the heating completion step, the internal temperature blocked by the temperature sensor 124 is sensed in real time to control a high temperature air supply to maintain an appropriate temperature.

Therefore, the PE sheet 130 is guided to the best repair reinforcement conditions, and the PE sheet 130 is released from the heating state when the best condition is achieved, by adjusting the heating time and temperature in consideration of the thickness density and the like of the PE sheet 130. It is preferable to carry out.

In particular, such heating directly heats the outer circumference of the PE sheet 130 in close contact with the inner circumference of the pipeline 10, thereby greatly improving the reliability and efficiency of the repair reinforcement work.

Furthermore, if necessary, the maintenance step may be performed while maintaining the heating state.

The reinforcement step is to expand the pressure tube 112 of the body 110, the PE sheet 130 is converted to the PE sheet 130 and the circular tube shape while the bending line 131 is stretched to further strengthen the repair This is easy.

Here, when the pressurized state of the pressurizing tube 112 passes for a predetermined time, the PE sheet 130 is cured again to integrate the inner circumference of the conduit 10 and to withdraw the installed equipment.

On the other hand, such a series of tasks are usually performed by monitoring all or part of a separate device.

10: pipeline 100: maintenance reinforcement device
110: body 111: drainage passage
112: pressure tube 113: roller
120: barrier wall 121: distribution duct
122: nozzle 123: sealed tube
124: temperature sensor 125, 126, 127: supply pipe
130: PE sheet 131: bending line

Claims (4)

A pressure tube 112 is formed on the outer circumference to expand by injection of air to form a body 110 for pressing the inner circumference of the conduit 10, and before and after the body 110, respectively. Close to the periphery to form a closed tube (123) for blocking the pipe line 10, and inserted into the outer wall of the blocking wall 120, and the outer periphery of the body 110 to combine the nozzle 122 for supplying hot air In the non-excavated pipeline repair reinforcement device composed of a PE sheet 130 integrally attached to the inner circumference of the pipeline,
The blocking wall 120 is integrated by attaching an annular distribution duct 121 to each of both sides of the drain passage 110 of the body 110 and coupling the sealed tube 123 to the outer circumference of the distribution duct 121. The duct 121 combines the nozzles 122 for injecting a plurality of high-temperature air, and the temperature detection sensor 124 is installed on the spraying side of the nozzle 122 to reinforce and repair the non-excavated pipe line using the PE sheet. Device.
A setting step of inserting the pipe-shaped PE sheet 130 into the outer periphery of the pressure tube 112 of the body 110 and then moving the body 110 to a damaged position of the pipeline 10;
A heating step of transferring heat to the PE sheet 130 by spraying hot air through the supply pipe 125 when the setting step is completed;
After the heating step proceeds by supplying air to the supply pipe 126 to expand the sealed tube 123 of the blocking wall 120 to block both sides of the damaged portion of the conduit 10,
PE sheet 130 by continuously spraying high temperature air through the supply pipe 125 in the blocking step and heating to the PE sheet 130 and at the same time maintaining a proper temperature through the temperature sensor 124 Is a heating completion step to induce the best repair reinforcement condition and release the heating state when the PE sheet 130 is the best condition, and
In the heating completion step, the heating state is released and at the same time supplying air to the supply pipe 127, the pressure tube 112 of the body 110 is expanded, thereby the PE sheet 130 inserted into the pressure tube 112 is a pipe line Non-excavated pipeline repair reinforcement method using a PE sheet, characterized in that it comprises a repair reinforcement step of the pipeline 10 to be in close contact with the damaged portion of (10).
The method of claim 2,
In the heating completion step, the internal temperature blocked by the temperature sensor 124 is sensed in real time to control a high temperature air supply to maintain a proper time at an appropriate temperature, but to perform the reinforcement step at the same time as necessary. Non-excavated pipeline repair reinforcement method using a PE sheet. delete

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