A trenchless pipe-in-pipe lining rehabilitation system

Abstract

The application relates to the technical field of pipeline repair, in particular to a trenchless pipeline lining repair system which comprises a pipeline to be repaired; a lining hose assembly which comprises a protective film and a lining hose, the protective film is arranged between the lining hose and the pipeline to be repaired, and the lining hose is made of a glass fiber hose impregnated with a light-cured resin adhesive; an air pressure supply unit which is used for inflating the lining hose to make the lining hose expand; and a UV curing lamp group which is arranged in the lining hose, can move along the axial direction of the lining hose and is used for curing the lining hose assembly. The application has the effect of improving the convenience of pipeline repair.

Description

Technical Field

[0001] This application relates to the technical field of pipeline repair, and in particular to a trenchless pipeline lining repair system. Background Technology

[0002] With the continuous acceleration of urbanization and the ongoing construction of urban infrastructure, underground pipelines, as an important artery of the city, undertake many key functions such as drainage, gas supply, and power transmission. However, due to long-term use and the influence of complex geological conditions and environmental factors, the aging and damage problems of underground pipelines are becoming increasingly prominent.

[0003] Traditional excavation and repair methods have revealed many drawbacks in solving these problems. They not only require a lot of time and manpower, which greatly extends the construction period, but are also costly. They also seriously hinder surrounding traffic, damage the ecological environment, and cause great inconvenience to residents' daily lives and the normal operation of the city. Utility Model Content

[0004] To improve the convenience of pipeline repair, this application provides a trenchless pipeline lining repair system.

[0005] This application provides a trenchless pipeline lining repair system, which adopts the following technical solution: A trenchless pipe lining repair system includes: Pipes to be repaired; The liner hose assembly includes a protective film and a liner hose, the protective film being placed between the liner hose and the pipe to be repaired, the liner hose being made of glass fiber hose impregnated with light-curing resin adhesive; The air supply unit is used to inflate the inner lining hose, causing it to expand. The UV curing lamp assembly is placed inside the inner lining tube and can move along the axial direction of the inner lining tube to cure the inner lining tube assembly.

[0006] By adopting the above technical solution, a protective film is placed inside the pipeline to be repaired, the protective film is unfolded, and the inner lining hose is placed inside the protective film. The inner lining hose is inflated by an air pressure supply unit, and in conjunction with the protective film placed between the inner lining hose and the pipeline to be repaired, the possibility of scratches on the outer membrane of the inner lining hose is reduced. At the same time, the inner lining hose fits the pipeline to be repaired better. Then, the ultraviolet curing lamp group is activated. The ultraviolet curing lamp group moves along the axial direction of the inner lining hose to cure the inner lining hose assembly, forming a high-strength, high-modulus fiberglass inner lining layer. There is no need to excavate the pipeline, which greatly shortens the construction period, reduces the impact on traffic and the environment, and thus improves the convenience of pipeline repair.

[0007] Optionally, a connecting component is provided at one open end of the inner liner hose, and the inner liner hose is fixed to the air pressure supply unit through the connecting component.

[0008] By adopting the above technical solution, the inner lining hose can be reliably connected to the air pressure supply unit, ensuring that the air pressure supply unit stably inflates the inner lining hose, allowing the inner lining hose to expand smoothly, which is beneficial for subsequent curing operations and improves the stability and reliability of pipeline repair construction.

[0009] Optionally, the connecting assembly includes a fixing sleeve, which is fixedly connected to the air inlet of the air pressure supply unit. The outer wall of the fixing sleeve has an annular groove, and a sealing ring is provided in the annular groove. One end of the inner lining hose opening is fitted into the annular groove, and the sealing ring is clamped to the outer wall of the inner lining hose. A fastening component is provided on the outside of the sealing ring.

[0010] By adopting the above technical solution, the annular groove provides positioning space for the inner lining hose, the sealing ring is clamped on the outer wall of the inner lining hose to seal it, reducing the possibility of gas leakage during inflation, and the fastening components further strengthen the connection between the sealing ring and the inner lining hose to ensure stable air pressure. This allows the inner lining hose to expand smoothly and fit tightly against the inner wall of the pipe to be repaired. Combined with the ultraviolet curing lamp, it achieves a good repair effect, shortens the construction cycle, and improves the strength and durability of the repaired pipe lining layer.

[0011] Optionally, the fastening assembly includes a fastening clamp, a first fixing plate, a second fixing plate, a fixing rod, and a locking sleeve. The fastening clamp is circular and fits against the outer wall of the sealing ring. One end of the fastening clamp is connected to the first fixing plate, and the end of the fastening clamp away from the first fixing plate is connected to the second fixing plate. The first fixing plate has a first insertion port, and the second fixing plate has a second insertion port. The fixing rod is inserted into the first insertion port and the second insertion port. The locking sleeve is threadedly connected to the fixing rod, and the two ends of the fastening clamp are fitted together through the locking sleeve.

[0012] By adopting the above technical solution, the fastening clamp surrounds and fits the outer wall of the sealing ring. The fixing rod is inserted into the insertion port of the first fixing plate and the second fixing plate. Then, the two ends of the fastening clamp are fitted together by the locking sleeve thread connection. This further enhances the connection stability between the inner lining hose and the air pressure supply unit, improves the sealing performance during the inflation process, and facilitates the uniform expansion and subsequent curing of the inner lining hose. This enables the entire trenchless pipeline repair system to operate stably, ensuring the reliable quality of the repaired pipeline inner lining. It has the advantages of short construction cycle, minimal impact on traffic and the environment, fast curing speed, high efficiency, high strength and good durability of the inner lining.

[0013] Optionally, the end of the fastening clamp near the first fixing plate is connected to a first auxiliary clamping plate, the end of the fastening clamp near the second fixing plate is provided with a first auxiliary clamping groove matching the first auxiliary clamping plate, the end of the fastening clamp near the second fixing plate is connected to a second auxiliary clamping plate, and the end of the fastening clamp near the second fixing plate is provided with a second auxiliary clamping groove matching the second auxiliary clamping plate.

[0014] By adopting the above technical solution, the first auxiliary clamping plate and the first auxiliary clamping groove, and the second auxiliary clamping plate and the second auxiliary clamping groove on the fastening clamp are matched with each other, which enhances the tightness and stability of the connection at both ends of the fastening clamp, can better tighten the sealing ring, thereby improving the sealing performance of the connection between the inner lining hose and the air pressure supply unit, reducing the possibility of gas leakage when the air pressure supply unit inflates the inner lining hose, and enabling the inner lining hose to expand smoothly and fit into the inner wall of the pipe to be repaired, which helps the subsequent curing and repair work to proceed smoothly.

[0015] Optionally, a limiting ring is connected to the groove wall away from the groove opening of the annular groove, and an avoidance groove is opened on the inner wall of the sealing ring, into which the limiting ring is inserted.

[0016] By adopting the above technical solution, the cooperation between the limiting ring and the clearance groove further enhances the connection stability between the sealing ring and the fixing sleeve, reduces the possibility of displacement of the sealing ring during the inflation process, and enables the air pressure supply unit to stably supply air to the inner lining hose, thereby ensuring that the inner lining hose can expand smoothly and fit into the inner wall of the pipe to be repaired, which is beneficial to the subsequent curing operation.

[0017] Optionally, the outer ring of the sealing ring is protruding and located on the outer wall of the fixing sleeve.

[0018] By adopting the above technical solution, it is easier for the fastening components to compress the sealing ring, thereby enhancing the sealing effect.

[0019] Optionally, it also includes a control console with a display screen, which is electrically connected to the display screen. The UV curing lamp assembly is connected to a camera device, which is used to inspect the inside of the inner lining hose and transmit the inspection data to the display screen for display.

[0020] By adopting the above technical solution, the system uses a control console and display screen to receive inspection data from the camera device inside the inner lining hose, enabling real-time monitoring and ensuring accurate positioning and uniform curing of the inner lining hose. At the same time, the system does not require excavation of the pipeline to be repaired, has a short construction cycle, and has minimal impact on traffic and the environment. The use of ultraviolet curing technology enables the inner lining hose to cure quickly and efficiently without being affected by ambient temperature. The repaired pipeline inner lining layer has high strength, good durability, and a long service life.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. Place the protective film inside the pipe to be repaired, unfold the protective film, place the inner lining hose inside the protective film, and use the air pressure supply unit to inflate the inner lining hose to make it expand. This, together with the protective film placed between the inner lining hose and the pipe to be repaired, reduces the possibility of scratches on the outer membrane of the inner lining hose and allows the inner lining hose to better fit the pipe to be repaired. Then, start the UV curing lamp assembly. The UV curing lamp assembly moves along the axial direction of the inner lining hose to cure the inner lining hose assembly, forming a high-strength, high-modulus fiberglass inner lining layer. This eliminates the need for pipe excavation, greatly shortens the construction cycle, reduces the impact on traffic and the environment, and thus improves the convenience of pipe repair. 2. It can reliably connect the inner lining hose to the air pressure supply unit, ensuring that the air pressure supply unit stably inflates the inner lining hose, allowing the inner lining hose to expand smoothly, which is beneficial for subsequent curing operations and improves the stability and reliability of pipeline repair construction. 3. The fastening clamp surrounds and fits the outer wall of the sealing ring. The fixing rod is inserted into the insertion port of the first fixing plate and the second fixing plate. Then, the locking sleeve is threaded to make the two ends of the fastening clamp fit together. This further strengthens the connection stability between the inner lining hose and the air pressure supply unit, improves the sealing performance during the inflation process, and is conducive to the uniform expansion and subsequent curing of the inner lining hose. This enables the entire trenchless pipeline repair system to operate stably and ensures the reliable quality of the repaired pipeline inner lining. It has the advantages of short construction cycle, small impact on traffic and environment, fast curing speed, high efficiency, high strength and good durability of the inner lining. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application.

[0023] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0024] Figure 3 This is a schematic diagram of the fastening component in an embodiment of this application.

[0025] Explanation of reference numerals in the attached figures: 1. Pipe to be repaired; 2. Air pressure supply unit; 3. UV curing lamp assembly; 4. Protective film; 41. Inner lining hose; 5. Fixing sleeve; 51. Annular groove; 52. Limiting ring; 6. Sealing ring; 7. Fastening clamp; 71. First fixing plate; 72. Second fixing plate; 73. Fixing rod; 74. Locking sleeve; 75. First auxiliary clamping plate; 76. Second auxiliary clamping plate; 8. Control console; 81. Display screen; 9. Camera device. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0027] This application discloses a trenchless pipeline lining repair system.

[0028] Reference Figure 1 and Figure 2 A trenchless pipeline lining repair system includes a pipeline to be repaired (1), a lining hose assembly, an air pressure supply unit, and an ultraviolet curing lamp assembly. The air pressure supply unit inflates the lining hose, causing it to expand. The ultraviolet curing lamp assembly is placed inside the lining hose and can move along its axial direction. The ultraviolet curing lamp assembly is used to cure the lining hose assembly, achieving the effect of repairing the pipeline to be repaired (1). By using air pressure to make the lining hose tightly adhere to the inner wall of the pipeline to be repaired (1), and then using ultraviolet light for curing, a high-strength lining layer can be formed to repair the pipeline. In this example, the air pressure supply unit uses an air compressor for inflation.

[0029] Specifically, the inner lining hose assembly includes a protective film and an inner lining hose. The protective film is placed between the inner lining hose and the pipe 1 to be repaired. The protective film can be a PE film liner or a polytetrafluoroethylene coated fiberglass blanket, etc. In this example, a PE film liner is used as the protective film to reduce the possibility of the outer membrane of the inner lining hose being scratched by the pipe 1 to be repaired. The width of the PE film liner is generally 1.5 times the inner diameter of the inner lining hose. The inner lining hose is made of fiberglass hose impregnated with light-curing resin adhesive.

[0030] The inner lining hose has a connecting component at one open end. The inner lining hose is fixed to the air pressure supply unit through the connecting component, which can reliably connect the inner lining hose to the air pressure supply unit, ensuring that the air pressure supply unit stably inflates the inner lining hose, allowing the inner lining hose to expand smoothly, which is beneficial for subsequent curing operations and improves the stability and reliability of pipeline repair construction.

[0031] Furthermore, the connecting assembly includes a fixing sleeve, which is fixedly connected to the air inlet of the air pressure supply unit. The fixing sleeve is fixedly connected to the air pressure supply unit. An annular groove is provided on the outer wall of the fixing sleeve, and a sealing ring is provided in the annular groove. In this example, the sealing ring is made of rubber, which has good elasticity and sealing performance. The open end of the inner lining hose located at the port of the pipeline to be repaired is fitted into the annular groove. The sealing ring is clamped on the outer wall of the inner lining hose. The annular groove provides positioning space for the inner lining hose. The sealing ring clamped on the outer wall of the inner lining hose plays a sealing role. A fastening component is provided on the outside of the sealing ring. The fastening component squeezes the sealing ring, so that the inner lining hose is fastened in the annular groove.

[0032] Reference Figure 2 and Figure 3The pneumatic supply unit, specifically, includes a fastening assembly comprising a fastening clamp, a first fixing plate, a second fixing plate, a fixing rod, and a locking sleeve. In this example, the fastening clamp is made of stainless steel to facilitate bending of the fastener. The fastening clamp is circular and fits against the outer wall of the sealing ring. One end of the fastening clamp is fixedly connected to the first fixing plate, which is fixedly connected to the outer wall of the fastening clamp. The end of the fastening clamp away from the first fixing plate is fixedly connected to the second fixing plate, which is fixedly connected to the outer wall of the fastening clamp. The first fixing plate has a first insertion port. The second fixing plate has a second insertion port. The fixing rod is inserted into the first insertion port and the second insertion port. The locking sleeve is threaded to the fixing rod. The two ends of the fastening clamp are fitted together through the locking sleeve. In this example, the fixing rod is a bolt and the locking sleeve is a nut. The fixing rod is inserted into the second insertion port and the first insertion port in sequence. The locking sleeve is threaded to the fixing rod. One side of the locking sleeve abuts against the side of the first fixing plate away from the second fixing plate. This structure can make the fastening clamp tightly hold the sealing ring, thereby ensuring the sealing between the inner lining hose and the air pressure supply unit.

[0033] In addition, a first auxiliary clamping plate is fixedly connected to one end of the fastening clamp near the first fixing plate, a first auxiliary clamping groove matching the first auxiliary clamping plate is opened at one end of the fastening clamp near the second fixing plate, a second auxiliary clamping plate is connected to one end of the fastening clamp near the second fixing plate, and a second auxiliary clamping groove matching the second auxiliary clamping plate is opened at one end of the fastening clamp near the second fixing plate.

[0034] When the sealing ring is tightened, the fastening clamp is in a circular shape. The first auxiliary clamping plate is inserted into the auxiliary clamping groove, and the second auxiliary clamping plate is inserted into the second auxiliary clamping groove. When the locking sleeve is threaded onto the fixing rod, the end of the clamping clamp near the second fixing plate presses against the first auxiliary clamping plate, and the end of the clamping clamp near the first fixing plate presses against the second auxiliary clamping plate. This reduces the possibility of insufficient clamping force on the sealing ring and further improves the sealing performance of the sealing ring.

[0035] A limiting ring is fixedly connected to the groove wall away from the groove opening of the annular groove. The limiting ring is generally integrally formed with the fixing sleeve and has the functions of positioning and limiting. The inner wall of the sealing ring has a relief groove. The limiting ring is inserted into the relief groove to reduce the displacement of the sealing ring when it is squeezed. At the same time, the outer ring of the sealing ring is convex and is set on the outer wall of the fixing sleeve. The axial length of the end of the sealing ring away from the annular groove is longer than the axial length of the annular groove. When the fastening clamp clamps the sealing ring, the sealing ring squeezes the inner lining hose, so that the inner lining hose is tightly attached to the outer wall of the fixing sleeve and the groove wall of the annular groove, further improving the sealing performance.

[0036] In addition, the system also includes a control console with a display screen. The control console is electrically connected to the display screen. A camera device is fixedly connected to the UV curing lamp assembly. The camera device is installed on the UV curing lamp assembly and is used to inspect the inside of the inner lining tube and transmit the inspection data to the display screen for display. The operator can monitor the inside of the inner lining tube in real time through the display screen to ensure accurate positioning and uniform curing of the inner lining tube.

[0037] The implementation principle of a trenchless pipeline lining repair system according to an embodiment of this application is as follows: When using this trenchless pipeline repair system, firstly, an airbag plug is used to perform double sealing at 21m upstream and downstream of the repair section, and a water pump is used to temporarily discharge sewage. At the same time, a high-pressure water gun is used to clean the inside of the pipe. Next, a protective membrane gasket is placed inside the pipe, and the inner lining hose is pulled into the pipe using a winch. The ultraviolet lamp chain is placed inside the hose, the inner lining hose is fitted with a fixing sleeve, the sealing ring is clamped in the annular groove, and the limiting ring is inserted into the clearance groove, thereby compressing the inner lining hose. The fastening clamp is wrapped around the outer wall of the sealing ring. The fixing rod is inserted into the second and first insertion ports in sequence. The locking sleeve is threaded to the end of the fixing rod away from the second insertion port. The locking sleeve is tightened, thereby clamping the fastening clamp onto the sealing ring and sealing the opening of the inner lining hose. The air pressure supply unit is activated to inflate the inner lining hose, causing it to expand and adhere tightly to the inner wall of the pipe to be repaired 1. The camera device of the UV curing lamp group is used to inspect the inner lining tube. The UV curing lamp group is then turned on to cure the inner lining hose. After curing, the UV curing lamp group is removed. The entire process involves inflating the inner lining hose with the air pressure supply unit to make it expand and adhere tightly to the inner wall of the pipe to be repaired 1. Then, the UV curing lamp group is used to cure the inner lining hose assembly to form a high-strength inner lining layer, thereby repairing the pipe. This process does not require excavation, greatly shortening the construction period, reducing the impact on traffic and the environment, and improving repair efficiency and effectiveness.

[0038] The above are all preferred embodiments of this application. These embodiments are merely explanations of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A trenchless pipe lining repair system, characterized in that, include: Pipeline to be repaired (1); The liner hose (41) assembly includes a protective film (4) and a liner hose (41), the protective film (4) being placed between the liner hose (41) and the pipe (1) to be repaired, the liner hose (41) being made of a glass fiber hose impregnated with a light-curing resin adhesive; The air pressure supply unit (2) is used to inflate the inner lining hose (41) to expand the inner lining hose (41); The UV curing lamp assembly (3) is placed inside the inner lining hose (41) and can move along the axial direction of the inner lining hose (41) to cure the inner lining hose (41) assembly.

2. The trenchless pipe lining repair system according to claim 1, characterized in that, The inner lining hose (41) has a connecting component at one end of its opening, and the inner lining hose (41) is fixed to the air pressure supply unit (2) through the connecting component.

3. The trenchless pipe lining repair system according to claim 2, characterized in that, The connecting assembly includes a fixing sleeve (5), which is fixedly connected to the air inlet of the air pressure supply unit (2). The outer wall of the fixing sleeve (5) is provided with an annular groove (51), and a sealing ring (6) is provided in the annular groove (51). One end of the inner lining hose (41) is fitted into the annular groove (51), and the sealing ring (6) is clamped to the outer wall of the inner lining hose (41). A fastening assembly is provided on the outside of the sealing ring (6).

4. The trenchless pipe lining repair system according to claim 3, characterized in that, The fastening assembly includes a fastening clamp (7), a first fixing plate (71), a second fixing plate (72), a fixing rod (73), and a locking sleeve (74). The fastening clamp (7) is circular and fits against the outer wall of the sealing ring (6). One end of the fastening clamp (7) is connected to the first fixing plate (71), and the end of the fastening clamp (7) away from the first fixing plate (71) is connected to the second fixing plate (72). The first fixing plate (71) has a first insertion port, and the second fixing plate (72) has a second insertion port. The fixing rod (73) is inserted into the first insertion port and the second insertion port. The locking sleeve (74) is threadedly connected to the fixing rod (73), and the two ends of the fastening clamp (7) are fitted together through the locking sleeve (74).

5. The trenchless pipe lining repair system according to claim 4, characterized in that, The fastening clamp (7) is connected to a first auxiliary clamping plate (75) at one end near the first fixing plate (71), and a first auxiliary clamping groove matching the first auxiliary clamping plate (75) is opened at one end near the second fixing plate (72). The fastening clamp (7) is connected to a second auxiliary clamping plate (76) at one end near the second fixing plate (72), and a second auxiliary clamping groove matching the second auxiliary clamping plate (76) is opened at one end near the second fixing plate (72).

6. The trenchless pipe lining repair system according to claim 3, characterized in that, A limit ring (52) is connected to the groove wall away from the groove opening of the annular groove (51). An avoidance groove is provided on the inner wall of the sealing ring (6), and the limit ring (52) is inserted into the avoidance groove.

7. The trenchless pipe lining repair system according to claim 3, characterized in that, The outer ring of the sealing ring (6) is raised and located on the outer wall of the fixing sleeve (5).

8. The trenchless pipe lining repair system according to claim 1, characterized in that, It also includes a control console (8), which is equipped with a display screen (81). The control console (8) is electrically connected to the display screen (81). The UV curing lamp assembly (3) is connected to a camera device (9). The camera device (9) is used to inspect the inside of the inner lining hose (41) and transmit the inspection data to the display screen (81) for display.

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