KR102289953B1 - Non-excavation type pipeline repair method for both water and sewage using a liner for pressure piping - Google Patents

Abstract

The present invention relates to a non-excavation type pipe repair method for both water and sewage using a liner for pressure piping. More particularly, the present invention relates to a non-excavation type pipe repair method for both water and sewage using a liner for pressure piping that can be applied to both water supply and sewage repair by using a liner for pressure piping in which an inner protective film, an abrasion prevention layer, a glass fiber layer, a resin layer, and an infrared blocking layer are sequentially stacked.

Description

Non-excavation type pipeline repair method for both water and sewage using a liner for pressure piping

The present invention relates to a non-excavation type pipe repair method for both water and sewage using a liner for pressure piping, and more particularly, a liner for pressure piping in which an inner protective film, abrasion prevention layer, glass fiber layer, resin layer and infrared blocking layer are sequentially stacked. It relates to a non-excavation type pipe repair method for both water and sewage using a liner for pressure piping that can be applied to both water supply and sewage repair by using

Various pipelines are formed underground depending on the purpose of use, and these pipelines deteriorate over time due to internal and external causes.

In particular, when the water pipe is used for a certain period of time or longer, problems such as peeling or neutralization of the coating material (lining) on the inner surface of the drawing pipe occur, as well as corrosion of the inner surface, resulting in corrosion products, foreign substances contained in raw water It is attached to the inner wall of this pipe to form scale.

Due to this, the quality of the raw water passing through the water supply pipe may be deteriorated, and problems such as leakage may occur as the corroded part is damaged.

On the other hand, in the case of sewer pipes, which are manufactured by concrete or cast iron pipes, corrosion may occur over time, and damage may occur due to corrosion.

For this reason, the sewage moving along the sewer pipe leaks into the soil or flows into the groundwater, causing serious environmental pollution in the area, and in severe cases, problems such as sinkholes may occur.

Therefore, the buried old pipe is rehabilitated, repaired, or replaced by applying various improvement methods according to the inspection result so that it can exhibit its original function.

Methods for improving old pipes include rehabilitation, repair and replacement. Rehabilitation is a method of restoring the function through internal lining using an existing pipe line, and repair is a method of restoring local damage. and replacement is a method of removing the old pipe and burying a new pipe.

Among them, in the case of replacement method, many methods using excavation have been used, but since this causes various functional problems as well as cost problems, various non-excavation methods have recently been developed to rehabilitate or repair old pipes without excavation. there is a situation.

In particular, in the case of rehabilitation of old pipes, various construction methods are being actively studied. Recently, technologies using photocuring that can repair old pipes in a short time are being actively studied.

KR 10-1264651 B1 2013.05.09. KR 10-1383855 B1 2014.04.03.

The present invention was created to solve the problems of the prior art, and the problem to be solved in the present invention is a liner for pressure piping in which an inner protective film, an abrasion prevention layer, a glass fiber layer, a resin layer, and an infrared blocking layer are sequentially stacked. It is to provide a non-excavation type pipe repair method for both water and sewage using a liner for pressure piping that can be applied to both the repair of water supply and sewerage.

According to the present invention, the liner 20 is supplied to the entry point 11 of the target conduit 10 requiring repair, the supplied liner 20 is pulled to the discharge point 12, and then both ends of the liner 20 are A liner supply step of cutting the liner 20 so as to be disposed; a liner expansion step of supplying pressure air to one side of the arranged liner 20 to inflate the liner 20; After entering the photocuring device 50 into the inflated liner 20 through the discharge point 12 , the photocuring device 50 is pulled and disposed to the entry point 11 . step; Information on the internal environment of the liner 20 is received and stored from the photocuring device 50 in real time, but the photocuring device 50 is moved to the discharge point 12 at an appropriate speed to cure the liner 20 . a curing step; A paper tube connection step of removing the photocuring device 50 and inserting the paper tube connecting device 70 into the cured liner 20 to penetrate the paper tube hole 80 at the point where the paper tube is connected; includes; characterized in that

At this time, the liner 20 may include: a glass fiber layer formed in a tube shape in which ECR glass fibers impregnated with polyester or vinyl ester resin are wound to a predetermined thickness; an abrasion prevention layer formed as a nonwoven fabric impregnated with polyester or vinyl ester resin is wound to a predetermined thickness on the inner circumferential surface of the glass fiber layer; an inner surface protection film made of a polyester material and provided to surround an inner peripheral surface of the abrasion prevention layer; a resin layer formed as a felt impregnated in polyester or vinyl ester resin is wound to a predetermined thickness on the outer peripheral surface of the glass fiber layer; and an infrared blocking layer made of a polyester material and provided to surround the outer circumferential surface of the resin layer.

Also, between the resin layer and the infrared blocking layer, a vertical load reinforcing layer made of glass fiber tape and provided on the outer surface side facing the center of the liner 20 is further provided.

On the other hand, in the liner expansion step, the supply pipe of the compressed air injection device is connected to one end of the elbow tube 30 , and the other end of the elbow tube 30 is inserted and fastened to one side of the liner 20 , and then the elbow It is made to bend the airtight member on the outer peripheral surface of the connection part of the tube 30 and the liner 20 .

On the other hand, the curing step may include: an operation preparation step of selecting an illuminance value of the light source unit 51 and a moving speed value of the photocuring device 50 according to the size and thickness of the liner 20 input to the control unit in advance; and an operation step of controlling the photocuring apparatus 50 to operate according to the illuminance value and the movement speed value set in the operation preparation step.

At this time, the photocuring device 50 is used in a state in which a plurality of photocuring devices are connected in the front and rear directions, and each photocuring device 50 is provided with temperature sensors 60 , 60a , 60b , 60c respectively, and has the same front and rear positions. The temperature sensors 60 , 60a , 60b , 60c provided in the are such that two or more temperature sensors are provided as a set, and a plurality of them are radially disposed along the periphery of the photocuring device 50 to have liners in different directions. (20) The inner temperature is measured and transmitted to the control unit.

In addition, in the curing step, the temperature sensor A ( 60a ), the temperature sensor B ( 60b ), and the temperature sensor C ( 60c ) measure the temperature of the surface of the liner 20 while the photocuring device 50 advances, and the control unit and the control unit adjusts the illuminance value of the light source unit 51 by comparing each measured temperature value with a preset reference curing temperature.

At this time, in the curing step, a pair of the temperature sensors 60 adjacent in the front-rear direction are provided to measure the temperature of the same portion of the inner surface of the liner 20 , and the control unit may include any one of the inner surfaces of the liner 20 . The temperature value measured by the third temperature sensor B (63b) among the third temperature sensor A (63a), the third temperature sensor B (63b), and the third temperature sensor C (63c) for measuring the temperature of the point (P) of If there is a difference from the reference curing temperature, the third temperature sensor B at the central axis of the photocuring device among the UV lamps 51a of the photocuring device 50 located behind the temperature sensor B 60b. The line connecting (63b) is selected as the reference line and the UV lamps 51a located within the rotation radius of ±60 degrees are selected, and the illuminance values of the selected UV lamps 51a are adjusted.

In addition, in the operation step, during the initial operation, only the light source unit 51 of the photocuring apparatus 50 disposed at the rearmost side is operated in a state in which the plurality of photocuring apparatuses 50 do not advance for a certain period of time and are stopped. .

On the other hand, after the inputting step of the photocuring device, it is configured to inject compressed air into the inside of the liner 20 once more.

According to the present invention, by using a liner for pressure piping in which an inner surface protection film, abrasion prevention layer, glass fiber layer, resin layer and infrared blocking layer are sequentially stacked, it can be applied to both the repair of water supply and sewerage.

In addition, according to the present invention, the local area having a problem in the curing process is identified in real time, and in response, the illuminance value of the UV lamp irradiating the light source to the area is adjusted to have a uniform curing degree as a whole, There is an advantage in that the defect rate is reduced and the installed liner has a constant productivity.

1A and 1B are views showing a liner supply step of a pipeline repair method during non-excavation combined with water and sewage using a liner for pressure piping according to the present invention. A drawing showing the state in which both ends were cut.
2A is a cross-sectional view of a liner applied to the present invention;
Figure 2b is a view of an embodiment of winding during the manufacture of the liner applied to the present invention.
Figure 3 is a view showing the liner expansion step applied to the present invention.
Figure 4a is a view showing a photocuring device input step applied to the present invention.
Figure 4b is a front view of the photocuring apparatus applied to the present invention.
Figure 5a is a view showing a curing step applied to the present invention, a view showing a process of advancing to the discharge point after the photocuring device reaches the entry point.
5B is a view showing a curing step applied to the present invention, and is a view showing a state in which the temperature sensor A measures the liner surface temperature at an arbitrary point.
5C is a view showing a state in which the temperature sensor B measures the surface temperature of the liner at an arbitrary point as the photocuring apparatus advances after FIG. 5B;
5D is a view showing a target UV lamp whose illuminance is adjusted when in the state of FIG. 5C.
6A and 6B are views showing the branch pipe connection step applied to the present invention, FIG. 6A is a view showing a state in which the paper pipe connecting device is put into the inside of the liner, and FIG. 6B is a branch pipe connection after forming a branch pipe hole. A drawing showing the state in which the device has been removed.

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

The present invention relates to a non-excavation type pipe repair method for both water and sewage using a liner for pressure piping (20), and more particularly, an inner protective film, an abrasion prevention layer, a glass fiber layer, a resin layer and an infrared blocking layer are sequentially laminated pressure By using the liner for piping (20), it relates to a non-excavation type pipe repair method for both water and sewage using a liner for pressure piping that can be applied to both the repair of water supply and sewerage.

The present invention is configured to include a liner supply step, a liner expansion step, a photocuring device input step, a curing step, and a paper tube connection step.

1. Liner supply stage

1A and 1B, in the liner supply step, the liner 20 is supplied to the entry point 11 of the target conduit 10 requiring maintenance, and the supplied liner 20 is discharged to the discharge point 12. ), and then cut both ends of the liner 20 so that the liner 20 is disposed.

In other words, in the liner supply step, first, as shown in FIG. 1A, the manholes located on both ends of the target pipe 10 are removed, and various equipment necessary for the repair process of the target pipe 10 are installed at each location. Thereafter, one end of the liner 20 is connected to a traction device and supplied to the entry point 11 , and then the liner 20 is pulled to the discharge point 12 using the traction device, and the liner When one end of the line 20 reaches the discharge point 12 , as shown in FIG. 1B , both ends of the liner 20 are cut to complete the disposition of the liner 20 .

At this time, as shown in FIGS. 2A and 2B , the liner 20 is formed in the form of a tube in which a plurality of layers are laminated on the inner and outer surfaces of the glass fiber layer. The film, abrasion prevention layer, glass fiber layer, resin layer and infrared blocking layer are sequentially stacked from the inside to the outside.

In detail, the liner 20 is laminated by sequentially winding and stacking an abrasion prevention layer, a glass fiber layer and a resin layer on the surface of the inner surface of the winding rod after covering the inner surface protective film, and covering the surface of the infrared ray blocking layer, the By separating the winding rod, the liner 20 in the form of a tube is formed.

At this time, as shown in FIG. 2B , the layers stacked adjacent to each other in the vertical direction of the liner 20 have different winding directions.

For example, when the lower layer of a pair of layers stacked adjacently in the vertical direction is formed while being wound in an inclined forward direction, the upper layer thereof is wound to be inclined in the opposite direction to the above, and is wound in the reverse direction to constitute the upper layer. .

Accordingly, the liner 20 can be manufactured in a state with greater rigidity.

On the other hand, the glass fiber layer constituting the liner 20 of the present invention is made of ECR glass fiber with good dust resistance and chemical resistance.

In detail, the glass fiber layer is made of a tube type in which ECR glass fibers impregnated with polyester or vinyl ester resin are wound to a predetermined thickness.

On the other hand, the abrasion prevention layer and the inner surface protective film form the inner surface of the liner 20 and are in contact with water or sewage, and are preferably made of a material having waterproofness and hydrophobicity, but with heat insulation and heat retention.

In detail, the wear protection layer is formed as a nonwoven fabric impregnated with polyester or vinyl ester resin is wound to a predetermined thickness on the inner circumferential surface of the glass fiber layer, and the inner surface protective film is made of a polyester material, and the inner circumferential surface of the abrasion prevention layer It is provided to cover (protect).

On the other hand, the resin layer is for strengthening the durability of the glass fiber layer, and is formed as a felt impregnated with polyester or vinyl ester resin is wound around the outer circumferential surface of the glass fiber layer to a predetermined thickness.

The infrared blocking layer is to block external exposure of infrared rays generated by the photocuring device 50, which will be described later, and is made of a polyester material having an infrared blocking function, so as to surround the outer circumferential surface of the resin layer.

At this time, between the resin layer and the infrared blocking layer is made of a glass fiber tape, so that the vertical load reinforcement layer provided on the outer surface side facing with respect to the center of the liner 20 is further provided.

The vertical load reinforcing layer is provided in the vertical direction of the outer circumferential surface of the resin layer to reinforce the durability of the resin layer. to be able to improve

On the other hand, the wear protection layer, the glass fiber layer and the resin layer constituting the liner 20 are impregnated with acid-resistant vinyl ester when used for water supply, and impregnated with polyester when used for sewage. make it available for use.

Meanwhile, an auxiliary wire 21 for pulling the photocuring device 50 and pulling the branch tube connecting device may be inserted through the inside of the liner 20 .

2. Liner inflation step

The liner expansion step is a process in which the liner 20 is closely disposed on the inner circumferential surface of the target conduit 10 as shown in FIG. 3 , and in detail, pressure air is supplied to one side of the disposed liner 20 . This is a process of expanding the liner 20 .

In other words, the liner expansion step connects the compressed air injection device to one side of the cut liner 20 so that compressed air is supplied. At this time, the supply pipe of the compressed air injection device and the liner 20 are airtight. make it possible to connect

In detail, in the liner expansion step, the supply pipe of the compressed air injection device is connected to one end of the elbow pipe 30, the other end of the elbow pipe 30 is inserted and fastened to one side of the liner 20, and then the elbow By bending the airtight member on the outer circumferential surface of the connection portion between the tube 30 and the liner 20, the supply pipe and the liner 20 of the compressed air injection device are in an airtight state, and as compressed air is injected in this state, the As the liner 20 is expanded, the outer circumferential surface is brought into close contact with the inner circumferential surface of the target conduit 10 .

At this time, the other end of the traction wire 22 having one end connected to the winding device is inserted through the elbow tube 30, and one end of the auxiliary wire 21 is connected to the traction wire 22 so that the compressed air During the injection process, the auxiliary wire 21 is prevented from being drawn into the inside.

In addition, the elbow tube 30 is provided with a pressure sensor for measuring the pressure inside the liner 20, the measured pressure value can be sent to the control unit.

3. Photocuring device input stage

In the photocuring device input step, as shown in FIG. 4A , the photocuring device 50 enters the inflated liner 20 through the discharge point 12 , and then enters the photocuring device 50 until the entry point 11 . It is a process of tracting and arranging the photocuring device 50 .

In other words, in the step of inserting the photocuring device 50 , the photocuring device 50 is placed at the discharge point 12 side, and then the photocuring device 50 is placed on the other end of the exposed auxiliary wire 21 . ), and then partially winds up the auxiliary wire 21 and completely draws it into the liner 20, and installs a fixing packer 40 on the other end of the liner 20 to install the liner 20 ), and then the auxiliary wire 21 is wound so that the photocuring device 50 is completely moved to the entry point 11 .

At this time, the photocuring device 50 includes a light source unit 51 extending in the front-rear direction and configured to irradiate the light source in all directions with respect to the central axis, and three or more radially arranged along the outer peripheral surface of the light source unit 51 . It is configured to include a guide leg 52 and a wheel 53 provided at the protruding end of the guide leg 52 .

That is, the photocuring device 50 is configured such that the wheels 53 come into contact with the inner circumferential surface of the liner 20 to guide forward and backward directions, and the photocuring device 50 is provided in a plurality of front-rear directions by the connection part 54 . is formed in a connected form.

At this time, the light source unit 51 is formed in a form in which a plurality of UV lamps 51a are arranged along the circumference of the central axis.

On the other hand, when the entry point 11 is referred to as the rear and the discharge point 12 is referred to as the front, the photocuring device 50 located at the forefront is provided with an image processing device 55 such as a camera to cure the liner 20 . The process is captured in real time and transmitted to the control unit.

In addition, as shown in Figures 4a and 4b, each photocuring device 50 is provided with temperature sensors 60, 60a, 60b, 60c, respectively, and is made to measure the surface temperature of the liner 20, The measured temperature value is transmitted to the control unit.

In other words, the temperature sensor 60 is provided and used in each of the plurality of photocuring devices 50. In the present invention, the temperature sensor 60 sequentially provided from the front is used as the temperature sensor A (60a) and the temperature sensor B. (60b), the temperature sensor C (60c) will be referred to.

At this time, the temperature sensors 60 , 60a , 60b , and 60c provided at the same front and rear positions are such that two or more temperature sensors are provided at the corresponding positions, respectively, and a plurality of them are radially arranged along the circumference of the photocuring device 50 . to measure the inner surface temperature of the liner 20 in different directions.

With reference to FIGS. 4A to 5B, for example, the temperature sensor A (60a) provided in the photocuring apparatus 50 located at the forefront is a first temperature sensor A (61a), a second temperature sensor A (62a), and a second temperature sensor A (62a). 3 temperature sensor A (63a), the temperature sensor B (60b) provided in the photocuring device 50 located behind the temperature sensor A (60a) is a first temperature sensor B (61b), a second temperature It includes a sensor B (62b) and a third temperature sensor B (63b), and the temperature sensor C (60c) provided in the photocuring device 50 located behind the temperature sensor B (60b) is the first temperature sensor C 61c, a second temperature sensor C 62c, and a third temperature sensor C 63c.

At this time, the pair of temperature sensors adjacent to each other in the front-rear direction are provided to measure the temperature of the same point of the liner 20, for example, the first temperature sensor A (61a) and the first temperature sensor B (61b). , the first temperature sensor C (61c) is provided in a state facing in the same direction to measure the temperature of the same portion of the inner surface of the liner 20 according to the movement of the photocuring apparatus 50 .

On the other hand, the fixing packer 40 is provided with a pressure sensor (not shown) for measuring the pressure inside the liner 20, and the pressure value measured by the pressure sensor is transmitted to the control unit.

As described above, in the step of inserting the photocuring device 50 , the photocuring device 50 is drawn into the liner 20 to prepare the liner 20 for photocuring thereafter.

On the other hand, after the inputting step of the photocuring device, compressed air is injected into the inside of the liner 20 once more so that the liner 20 is completely in close contact with the inner wall of the target conduit 10 .

4. Curing step

In the curing step, as shown in FIGS. 5A to 5D , information on the internal environment of the liner 20 is received from the photocuring device 50 in real time and stored, but the photocuring device 50 is set at an appropriate speed. The furnace is moved to the discharge point 12 to harden the liner 20 .

In other words, in the curing step, the pressure and temperature inside the liner 20 are measured, the degree of curing of the liner 20 is determined using the measured pressure and temperature values, and the photocuring device ( 50) is moved at an appropriate speed, so that the entire liner 20 is in a uniformly cured state. do.

1) Operation preparation stage

The operation preparation step is a process of selecting an illuminance value of the light source unit 51 and a moving speed value of the photocuring apparatus 50 according to the diameter, thickness, and length of the liner 20 input to the control unit in advance.

In other words, the control unit stores the curing time according to the illuminance value of the light source unit 51 required according to each standard of the liner 20 and the surface temperature of the liner 20 according to the curing time as reference curing temperature information for each illuminance value. , to calculate and store the appropriate moving speed of the photocuring device 50 under the above conditions, and after the arrangement of the photocuring device 50 is completed, a view suitable for the current construction situation from among the values input by the user After selecting the operating conditions of the cosmetic device 50 , the control unit allows the photocuring device 50 to be controlled in response thereto.

2) Operation stage

The operation step is a process of controlling the photocuring apparatus 50 to operate according to the illuminance value and the movement speed value set in the operation preparation step.

In other words, in the operation step, the photocuring device 50 moves from the entry point 11 to the discharge point 12 to harden the liner 20. In the initial operation, a plurality of photocuring devices ( 50 , only the light source unit 51 of the photocuring apparatus 50 disposed in the rearmost position is operated in a stopped state without advancing.

In detail, the plurality of photocuring devices 50 are advanced in a state in which they are connected in a line. As the photocuring device 50 cures the liner 20 in the process of advancing, the bar on the rearmost side of the liner 20 A problem in which curing is not performed properly may occur.

Therefore, in the present invention, during the initial operation, the photocuring device 50 disposed in the rearmost does not advance for a certain period of time, and the entirety is uniformly cured as the rearmost side of the liner 20 is cured in a stopped state. make it possible to become

At this time, the time the photocuring apparatus 50 stops is determined according to the size and thickness of the liner 20 , and information on the curing time according to the standard of the liner 20 is calculated in advance and input to the control unit. .

On the other hand, after the stopping process as described above, the photocuring device 50 is allowed to move forward in response to the moving speed selected during the operation preparation step, and the temperature sensor A ( 60a), the temperature sensor B (60b), and the temperature sensor C (60c) measure the temperature of the surface of the liner 20 and transmit it to the control unit, and the control unit compares each measured temperature value with a preset reference curing temperature, and the light source unit (51) to adjust the illuminance value.

In other words, as the photocuring of the liner 20 is made, the surface temperature of the liner 20 gradually rises to reach the highest point, and then gradually decreases again. The temperature sensors 60 sequentially measure the temperature of the surface of the liner 20 at the same front and rear positions, and when the measured temperature value does not reach the calculated reference curing temperature, it is determined that the curing speed is slow and the surface temperature is It is controlled so that the illuminance value of the light source irradiated from the UV lamp 51a facing the lower direction is increased.

For example, as the photocuring device 50 moves forward, the temperature of the surface of the liner 20 is measured at regular time intervals and transmitted to the control unit. As shown in FIG. 5B , the temperature sensor A 60A ) reaches an arbitrary point (P) inside the liner, the first temperature sensor A (61a), the second temperature sensor A (62a), and the third temperature sensor A (63a) respectively measure the temperature. , when it is determined that each temperature value measured by the above has reached the reference curing temperature, the light source unit 51 is controlled to advance in a state maintaining the same irradiation value.

Thereafter, when the photocuring device 50 advances and the temperature sensor B 60b reaches the point as shown in FIG. 5C , the temperature sensor B 60b measures the temperature of the corresponding point again, and The temperature values of the first temperature sensor B (61b) and the second temperature sensor B (62b) measured by If it is determined that the temperature sensor B (63b) is not reached, it is determined that curing of the liner 20 in the direction to which the third temperature sensor B (63b) is directed is not performed properly, and a photocuring device located in the rear closest to the temperature sensor B (60b). The UV lamp 51a of (50) is controlled to irradiate the light source in a state having a higher illuminance value than before.

More specifically, as shown in FIG. 5D , the control unit is configured to move the second from the central axis of the photocuring device among the UV lamps 51a of the photocuring device 50 located at the rear of the temperature sensor B 60b. 3 The line connecting the temperature sensor B (63b) is selected as the reference line and the UV lamps (51a) located within the rotation radius of ±60 degrees are selected, and the illuminance value of the selected UV lamps (51a) is controlled to rise.

At this time, the rising illuminance value of the UV lamp 51a is proportional to the difference in the temperature value obtained by subtracting the measured temperature value from the reference curing temperature value, which is calculated in advance and stored in the control unit.

On the other hand, when the temperature value measured by the third temperature sensor B (63b) measured opposite to the above exceeds the reference curing temperature value, the illuminance value of the selected UV lamps (51a) is controlled to decrease to prevent the temperature rise. side effects can be prevented in advance.

On the other hand, after the above process, when the photocuring device 50 moves forward again, the temperature sensor C 60c reaches the point, and its measured temperature value matches the reference curing temperature value, the temperature sensor C ( 60c), the photocuring device 50 is controlled to advance while irradiating the light source corresponding to the initially selected illuminance value again.

As the above process is repeatedly performed, the photocuring device 50 gradually advances to the discharge point 12 to cure the liner 20 , and the auxiliary wire 21 connected to the photocuring device 50 . ) is provided in a state inserted through the inside of the liner 20 according to the movement of the photocuring device 50 .

That is, in the curing step of the present invention, as described above, by measuring and comparing the inner surface temperature of the liner 20 using a plurality of temperature sensors 60, the infrared rays are more strongly applied to the location where curing is not performed properly locally. As it is irradiated, it is possible to maintain a uniform curing quality as a whole, thereby improving the construction accuracy.

On the other hand, the surface temperature of the liner 20, the internal pressure, the moving speed of the photocuring device 50, the illuminance value of the UV lamp 51a, etc. measured in the curing step are computerized and stored, which are stored as a screen display device. Let it be printed so that it can be used later according to the purpose of the user.

In addition, the image information captured by the camera in the curing step can also be stored in the computerized processing door for each time period or output to a screen display device.

5. Branch pipe connection step

In the branch pipe connection step, as shown in FIGS. 6A and 6B , the branch pipe is connected by removing the photocuring device 50 and inserting the branch pipe connecting device 70 into the cured liner 20 . It is a process of penetrating the branch pipe hole 80 in the .

In other words, in the branch pipe connection step, as shown in FIG. 5A , first, the fixing packer 40 is removed, then the connection between the auxiliary wire 21 and the photocuring device 50 is released, and the photocuring The device 50 is separated from the inside of the liner 20 , and then, the end of the liner 20 exposed to the outside of the discharge point 12 of the target conduit 10 is cut and removed.

Thereafter, the inner surface protection film inside the liner 20 is removed, and the end of the liner 20 exposed to the outside of the entry point 11 of the target conduit 10 is cut to remove it, but the entry point ( After connecting the end of the auxiliary wire 21 exposed to the outside of 11) and the branch pipe connecting device 70, and then connecting the end of the auxiliary wire 21 exposed to the discharge point 12 side with the traction device, By winding the traction device, the branch tube connecting device 70 enters the inside of the liner 20 .

At this time, the branch pipe connecting device 70 is provided with an image processing device 55 such as a camera, and the image captured by the image processing device is transmitted to the control unit and the screen output device, and the user checks the output screen while checking the output screen. By manipulating the branch pipe connecting device 70, the branch pipe hole 80 can be formed through.

After the branch pipe hole 80 is penetrated, the branch pipe connecting device is removed from the inside of the liner 20 so that the replacement of the target pipe 10 can be completed.

Although preferred embodiments of the present invention have been described above, the scope of the present invention is not limited thereto, and it should be understood that the scope of the present invention extends to a range substantially equivalent to the embodiment of the present invention, Various modifications can be made by those of ordinary skill in the art to which the invention pertains without departing from the spirit of the invention.

10: Daesang pipeline 11: entry point
12: discharge point
20: liner 21: auxiliary wire
22: traction wire
30: Elbow tube 40: Packer for fixing
50: light curing device 51: light source unit
51a: UV lamp 52: guide leg
53: wheel 54: connection part
55: image processing device
60: temperature sensor 60a: temperature sensor A
60b: temperature sensor B 60c: temperature sensor C
61a: first temperature sensor A 62a: second temperature sensor A
63a: third temperature sensor A
61b: first temperature sensor B 62b: second temperature sensor B
63b: third temperature sensor B
61c: first temperature sensor C 62c: second temperature sensor C
63c: third temperature sensor C
70: branch pipe connection device 80: branch pipe hole

Claims (10)

After supplying the liner 20 to the entry point 11 of the target conduit 10 requiring repair, and pulling the supplied liner 20 to the discharge point 12, both ends of the liner 20 are cut to a liner supplying step in which the liner 20 is disposed;
a liner expansion step of supplying pressure air to one side of the arranged liner 20 to inflate the liner 20;
After entering the photocuring device 50 into the inflated liner 20 through the discharge point 12 , the photocuring device 50 is pulled and disposed to the entry point 11 . step;
Information on the internal environment of the liner 20 is received from the photocuring device 50 in real time and stored, but the photocuring device 50 is moved to the discharge point 12 at an appropriate speed to cure the liner 20 . a curing step;
a paper tube connection step of removing the photocuring device 50 and inserting the paper tube connecting device 70 into the cured liner 20 to penetrate the paper tube hole 80 at the point where the paper tube is connected;
includes,
The liner 20,
a glass fiber layer formed in a tube shape in which ECR glass fibers impregnated with polyester or vinyl ester resin are wound to a predetermined thickness;
an abrasion prevention layer formed as a nonwoven fabric impregnated with polyester or vinyl ester resin is wound to a predetermined thickness on the inner circumferential surface of the glass fiber layer;
an inner surface protection film made of a polyester material and provided to surround an inner peripheral surface of the abrasion prevention layer;
a resin layer formed as a felt impregnated with polyester or vinyl ester resin is wound to a predetermined thickness on the outer circumferential surface of the glass fiber layer; and
an infrared blocking layer made of a polyester material and provided to surround an outer circumferential surface of the resin layer;
A non-excavation type pipeline repair method for both water and sewage using a liner for pressure piping, comprising:
delete The method according to claim 1,
Between the resin layer and the infrared blocking layer,
A non-excavating type pipe repair method for both water and sewage using a liner for pressure piping, characterized in that it is made of glass fiber tape and further comprises a vertical load reinforcing layer provided on the outer surface side facing the center of the liner (20).
The method according to claim 1,
In the liner expansion step,
A supply pipe of the compressed air injection device is connected to one end of the elbow pipe 30, and the other end of the elbow pipe 30 is inserted and fastened to one side of the liner 20, and then the elbow pipe 30 and the liner 20 are connected. ), a non-excavating type pipe repair method for both water and sewage using a liner for pressure piping, characterized in that the airtight member is bent on the outer peripheral surface of the connection part.
The method according to claim 1,
The curing step is
an operation preparation step of selecting an illuminance value of the photocuring device 50 and a moving speed value of the photocuring device 50 according to the size and thickness of the liner 20 input to the controller in advance; and
an operation step of controlling the photocuring apparatus 50 to operate according to the illuminance value and the moving speed value set in the operation preparation step;
A non-excavation type pipeline repair method for both water and sewage using a liner for pressure piping, comprising:
6. The method of claim 5,
The photocuring device 50,
A plurality of them are used in a state in which they are connected in the front-rear direction, but each photocuring device 50 is provided with temperature sensors 60a, 60b, and 60c, respectively,
The temperature sensor (60a, 60b, 60c) is,
A plurality of photocuring devices are arranged radially along the circumference of the photocuring device 50, and the inner temperature of the liner 20 in different directions is measured and delivered to the control unit. pipeline repair method.
7. The method of claim 6,
In the curing step,
As the photocuring device 50 moves forward, the temperature sensor A (60a), the temperature sensor B (60b), and the temperature sensor C (60c) measure the temperature of the surface of the liner 20 and transmit it to the control unit, and the control unit measures the temperature of the surface of the liner 20 . A non-excavating type pipe repair method for both water and sewage using a liner for pressure piping, characterized in that the illumination value of the light source unit 51 is adjusted by comparing each temperature value and a preset reference curing temperature.
delete 6. The method of claim 5,
In the above operation step,
At the time of initial operation, the plurality of photocuring devices 50 do not advance for a certain period of time and are stopped, and only the light source unit 51 of the photocuring device 50 disposed at the rearmost side is controlled to operate. A non-excavation type pipeline repair method for both water and sewage using a dragon liner.
The method according to claim 1,
After the photo-curing device input step, a non-excavation type pipe repair method for both water and sewage using a liner for pressure piping, characterized in that it is configured to inject compressed air into the inside of the liner (20) once more.

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