Pipeline trenchless lining repair device and method

Abstract

The present invention discloses a pipeline trenchless lining repair device and method, the repair device comprises at least two central conduit supports, each of which comprises a bracket, a platform, a leg, a pulley support leg without a brake and a fixed support leg, and each platform is provided with a plug rod and a slot at both ends in the length direction; a liner transport cart is movably arranged on the central conduit support, comprising a bottom plate arranged above each platform, each bottom plate is provided with wheels, the wheels move on the platform of the central conduit support, each bottom plate is provided with a vertical support rod, and a circular arc pad for supporting the liner is arranged on the vertical support rod, the pad comprising a metal plate located at the lower layer and a non-metal plate located at the upper layer. The present invention can reduce the risk of repairing the liner in the pipeline, reduce the construction difficulty, and improve the safety.

Description

Technical Field

[0001] This invention relates to the field of pipeline engineering technology, and in particular to a trenchless pipeline lining repair device and method. Background Technology

[0002] In the construction of stainless steel linings for trenchless pipeline repair, a central guide pipe is needed as a temporary drainage pipe to ensure a dry environment. To ensure smooth connection of the central guide pipe into the pipeline, a support frame is typically required to transport it inside. Then, the arc-shaped sections of the lining pipe are welded at designated locations within the pipeline to form the lining. Due to the confined space within the pipeline, welding the arc-shaped sections poses risks. Furthermore, welding the arc-shaped sections within the confined space of the pipeline to form the lining is difficult and complex. Summary of the Invention

[0003] The purpose of this invention is to provide a trenchless pipeline lining repair device and method to solve the problem of high safety risks in trenchless pipeline lining repair construction.

[0004] To solve the above-mentioned technical problems, the technical solution provided by the present invention is: a trenchless pipeline lining repair device, comprising:

[0005] At least two central conduit supports are provided. Each central conduit support includes an arc-shaped bracket coaxially disposed within the pipe, two platforms extending symmetrically along the axis of the bracket on both sides of the bracket without contacting the inner liner, and four or more even-numbered legs symmetrically disposed on the bracket. The ends of the legs do not contact the inner liner. Each leg is detachably and replaceably provided with one of a pulley support foot without brakes and a fixed support foot. Both the pulley support foot without brakes and the fixed support foot are in contact with the inner wall of the pipe. Each platform is provided with a rod and a slot at both ends along its length. The rods of two adjacent central conduit supports are inserted into the slots.

[0006] The inner liner tube transport trolley is movably mounted on the central conduit support, including a base plate mounted above each platform. Each base plate is provided with at least four or more even-numbered wheels that move on the platforms of the central conduit support. Each base plate is provided with multiple sets of vertical support rods of varying heights from the outside to the inside in the width direction. An arc-shaped pad is mounted on the vertical support rods to support the inner liner tube. The pad includes a lower metal plate and an upper non-metal plate.

[0007] Furthermore, in the trenchless pipeline lining repair device provided by the present invention, each platform of the central guide pipe support is provided with two grooved guide rails along its length direction, and the wheel moves on the platform along the grooved guide rails.

[0008] Furthermore, the trenchless pipeline lining repair device provided by the present invention further includes a lining pipe transport trolley that includes a connector connected between adjacent vertical support rods, wherein the connector does not contact the central guide pipe.

[0009] Furthermore, in the trenchless pipeline lining repair device provided by the present invention, each of the legs is detachably provided with a pulley support foot with a brake at its end, which is used to replace the pulley support foot without a brake and the fixed support foot.

[0010] Furthermore, in the trenchless pipeline lining repair device provided by the present invention, the bracket is a semi-circular arc shape.

[0011] Furthermore, in the trenchless pipeline lining repair device provided by the present invention, the non-metallic plate is a rubber plate or a wooden board.

[0012] To solve the above-mentioned technical problems, another technical solution provided by the present invention is: a method for trenchless pipeline lining repair, employing the above-mentioned trenchless pipeline lining repair device, comprising:

[0013] Install pulley support feet on the legs of each central catheter stent, and assemble multiple central catheter stents into a stent group by inserting them together with rods and slots.

[0014] The central conduit is placed on the bracket of each central conduit support in the support group, and the central conduit is transported to the designated position in the pipeline by moving along the length of the pipeline using pulley support feet;

[0015] Replace the pulley supports on the legs of each central conduit support in the support group with fixed supports and support them on the inner wall of the pipe;

[0016] A section of the inner liner tube is placed on the pad of the inner liner tube transport trolley. The inner liner tube is transported to the designated position in the pipeline by moving the inner liner tube transport trolley on the support assembly. When the inner liner tube transport trolley moves to a central guide tube support of the support assembly, the fixed support feet on the corresponding central guide tube support are removed, while the fixed support feet on the other central guide tube supports are retained, so that a gap is left between the inner liner tube and the support legs on the inner liner tube transport trolley to form an unobstructed passage for the inner liner tube to move.

[0017] A plug is installed between the outrigger and the inner liner, and concrete is poured between the pipe and the inner liner to form a sealing layer, so that the pipe can be repaired at a designated location through the inner liner and the sealing layer.

[0018] Furthermore, the trenchless pipeline lining repair method provided by the present invention also includes:

[0019] After the sealing layer between a certain section of the inner lining pipe and the pipeline reaches the hardness standard, the next section of the inner lining pipe is transported according to the above method. Adjacent sections of the inner lining pipe are connected by a water-stop rubber strip. After the connection, concrete is poured between the inner lining pipe section and the pipeline at the corresponding position to form a sealing layer.

[0020] Furthermore, the trenchless pipeline lining repair method provided by the present invention assembles a central conduit support according to the length of each central conduit segment.

[0021] Furthermore, the trenchless pipeline lining repair method provided by the present invention is characterized in that,

[0022] Each of the legs is detachably provided with a pulley support foot with a brake at its end, which is used to replace the pulley support foot without a brake and the fixed support foot.

[0023] After the central conduit is transported to the designated position in the pipeline by moving along the length of the pipeline via the braked pulley support foot, it is braked by the brake of the pulley support foot and supported on the inner wall of the pipeline.

[0024] Remove the braked pulley support feet and transport a section of the inner liner tube to the designated location using an inner liner tube transport trolley;

[0025] A plug is installed between the outrigger and the inner lining tube, and concrete is poured between the pipe and the inner lining tube to form a sealing layer.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0027] The trenchless pipeline lining repair device and method provided by this invention utilizes platforms on both sides of a central guide pipe support as transport platforms for a lining pipe transport trolley. The lining pipe is moved and transported to a designated location on these platforms. A plug is installed between the removed fixed support legs and the lining pipe. A sealing layer is formed between the pipeline and the lining pipe by pouring concrete, allowing for the repair of the pipeline using the fully formed lining pipe. This eliminates the need for transporting and welding arc-shaped pieces into the pipeline as in traditional pipeline lining repair methods, reducing the risks and difficulty of repair work within the pipeline. Furthermore, the platforms on both sides improve the stability and safety of the lining pipe transport trolley.

[0028] The trenchless pipeline lining repair device and method provided by this invention involves adjacent central guide pipe supports being connected by insert rods and slots to form a support group. The central guide pipe supports are transported to a designated position within the pipeline via pulley supports. The pulley supports are removed from the legs and replaced with fixed supports to ensure the stability of the central guide pipe supports and the central guide pipes on them. When transporting the inner lining pipe via an inner lining pipe transport trolley, the fixed supports at the corresponding positions are removed before the inner lining pipe moves to the fixed supports, leaving a gap between the legs and the inner lining pipe to form an unobstructed passage for the inner lining pipe to move to the designated position on the platform of the central guide pipe support without obstruction, thereby reducing the difficulty of transporting the inner lining pipe.

[0029] The trenchless pipeline lining repair device and method provided by the present invention uses an arc-shaped bracket to support the central guide tube so that the central guide tube is coaxially set with the pipeline, thereby improving the sewage discharge performance after the central pipeline is connected.

[0030] The trenchless pipeline lining repair device and method provided by this invention improves the overall stability of the lining pipe transport trolley by using connecting parts. Supporting the lining pipe on a non-metallic plate prevents scratches or damage and avoids slippage on the plate, thus improving the transport quality of the lining pipe. Attached Figure Description

[0031] Figure 1 This is a front view schematic diagram of the central guide tube support with pulley feet installed;

[0032] Figure 2 This is a side view of the central catheter stent structure.

[0033] Figure 3 This is a front view schematic diagram of a central conduit support with fixed support legs installed.

[0034] Figure 4 This is a front view schematic diagram of the central guide tube transport center guide tube with pulley support feet installed;

[0035] Figure 5 This is a side view of the central conduit support structure for transporting the central conduit, which is equipped with pulley support feet;

[0036] Figure 6 This is a front view schematic diagram of the transport center conduit with a central conduit support installed with fixed support feet;

[0037] Figure 7 This is a schematic diagram of the main structure of the liner tube transport trolley;

[0038] Figure 8 This is a side view of the inner liner tube transport trolley.

[0039] Figure 9This is a front view schematic diagram of the structure in which the inner liner tube is transported on the central guide tube support via an inner liner tube transport trolley.

[0040] Figures 10 to 12 This is a side view of the process of transporting the inner liner tube on the central guide tube support via an inner liner tube transport trolley.

[0041] Figure 13 This is a schematic diagram of the main structure for repairing the pipeline by pouring concrete between the pipe and the inner lining pipe to form a sealing layer.

[0042] Figure 14 This is a side view diagram of the repair construction of the pipeline using multiple sections of inner lining pipe at a designated location;

[0043] As shown in the figure:

[0044] 100. Trenchless pipeline lining repair device;

[0045] 110. Central conduit support; 111. Bracket; 112. Platform; 113. Support leg; 114. Pulley support foot; 114'. Fixed support foot; 115. Insert rod; 116. Slot; 117. Guide rail.

[0046] 120. Liner tube transport trolley; 121. Base plate; 122. Wheels; 123. Vertical support rod; 124. Pad plate; 125. Connecting parts.

[0047] 130. Insert;

[0048] 200. Pipeline;

[0049] 300. Central catheter;

[0050] 400. Inner lining tube;

[0051] 500, closed layer; Detailed Implementation

[0052] The present invention will now be described in detail with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0053] Please refer to Figures 1 to 14 This invention provides a trenchless pipeline lining repair device 100, which may include:

[0054] At least two central conduit supports 110 are provided. Each central conduit support 110 includes an arc-shaped bracket 111 coaxially disposed within the pipe 200, two platforms 112 extending symmetrically along the axis of the bracket 111 on both sides of the bracket 111 without contacting the inner liner 400, and at least four legs 113 symmetrically disposed on the bracket 111. The end of each leg 113 is not in contact with the inner liner 400. The end of each leg 113 is detachably and replaceably provided with one of a pulley support foot 114 without brakes and a fixed support foot 114'. Both the pulley support foot 114 without brakes and the fixed support foot 114' are in contact with the inner wall of the pipe 200. Each platform 112 is provided with a rod 115 and a slot 116 at both ends in the longitudinal direction. The rod 115 of two adjacent central conduit supports 110 is inserted into the slot 116.

[0055] The inner liner tube transport trolley 120 is movably mounted on the central conduit support 110. It includes a base plate 121 positioned above each platform 112, with at least four even-numbered wheels 122 on each base plate 121. These wheels 122 move on the platforms 112 of the central conduit support 110. Each base plate 121 has multiple sets of vertical support rods 123 of varying heights arranged from the outside to the inside in the width direction. Arc-shaped pads 124 supporting the inner liner tube 400 are mounted on the vertical support rods 123. Each pad 124 includes a lower metal plate and an upper non-metallic plate. The curvature of the pad 124 matches that of the inner liner tube 400. The metal plate can be steel to improve stability, while the non-metallic plate can be rubber, wood, or other materials to prevent scratches on the inner liner tube 400. The multiple sets of vertical support rods 123 can be two sets of vertical support rods 123 with different heights. The higher vertical support rod 123 is located on the inner side of the base plate 121, and the lower vertical support rod 123 is located on the outer side of the base plate 121.

[0056] Please refer to Figures 1 to 14 The present invention also provides a method for trenchless pipeline lining repair, which, using the above-mentioned trenchless pipeline lining repair device 100, may include the following steps:

[0057] Step 601, please refer to Figures 1 to 2 , Figures 4 to 5 A pulley support foot 114 is installed on the support leg 113 of each central catheter stent 110. Multiple central catheter stents 110 are assembled into a stent group by inserting them together through the insertion rod 115 and the slot 116. The length of the stent group can be achieved by connecting multiple central catheter stents 110 according to the length of each central catheter segment 300. The figure shows four central catheter stents 110.

[0058] Step 602, please refer to Figure 4 and Figure 5 The central conduit 300 is placed on the bracket 111 of each central conduit support 110 in the support assembly. The central conduit 300 is transported to the designated position on the pipe 200 by moving along the length of the pipe 200 via pulley support feet 114. The bracket 111 can be a semi-circular arc shape, i.e., a half-circle arc shape, which improves the stability of the central conduit 300 and prevents it from falling off.

[0059] Step 603, please refer to Figure 6 Replace the pulley support feet 114 on the legs 113 of each central conduit support 110 in the support assembly with fixed support feet 114' and support them on the inner wall of the pipe 200. Fixed support feet 114' can improve the stability of the central conduit support 110 in the designated position and prevent slippage.

[0060] Step 604, please refer to Figures 7 to 12 A section of the inner liner tube 400 is placed on the pad 124 of the inner liner tube transport trolley 120. The inner liner tube 400 is transported to a designated position within the pipe 200 by moving the inner liner tube transport trolley 120 on the support assembly. When the inner liner tube transport trolley 120 moves to a central conduit support 110 of the support assembly, the fixed support leg 114' on the corresponding central conduit support 110 is removed, while the fixed support legs 114' on the other central conduit supports 110 are retained. This leaves a gap between the inner liner tube 400 and the support leg 113 on the inner liner tube transport trolley 120, forming an unobstructed passage for the inner liner tube 400 to move. After removing the fixed support leg 114', the stability of the central conduit support 110 after removing the fixed support leg 114' is improved by relying on the adjacent central conduit supports 110.

[0061] Step 605, please refer to Figure 13 A plug 130 is provided between the support leg 113 and the inner liner 400. Concrete is poured between the pipe 200 and the inner liner 400 to form a sealing layer 500, so that the pipe 200 can be repaired at a designated location through the inner liner 400 and the sealing layer 500. The plug 130 can improve the structural stability of the central guide tube support 110 supported on the inner liner 400 and prevent the inner liner 400 from shifting.

[0062] Step 606: After the sealing layer 500 between a certain section of the inner lining pipe 400 and the pipe 200 reaches the hardness standard, the next section of the inner lining pipe 400 is transported according to the methods of steps 601 to 605 above. Adjacent sections of the inner lining pipe 400 are connected by a water-stop rubber strip. After the connection, concrete is poured between the section of the inner lining pipe 400 and the corresponding position of the pipe 200 to form a sealing layer 500.

[0063] Please refer to Figures 1 to 14 The trenchless pipeline lining repair device 100 and method provided in this embodiment of the invention utilizes platforms 112 on both sides of a central guide pipe support 110 as transport platforms for a lining pipe transport trolley 120. The lining pipe 400 is moved and transported to a designated position on the platforms 112 of the central guide pipe support 110 via the lining pipe transport trolley 120. A plug 130 is installed between the removed fixed support leg 114' and the lining pipe 400. A sealing layer 500 is formed between the pipeline 200 and the lining pipe 400 by pouring concrete, allowing the entire formed lining pipe 400 to be used for pipeline 200 repair. This eliminates the need for transporting the arc-shaped piece into the pipeline 200 and welding it at a designated position within the pipeline 200 to form the entire lining pipe 400, thus reducing the risk and difficulty of repair work within the pipeline 200 using the lining pipe 400. The platforms 112 on both sides improve the stability and safety of the inner liner tube transport trolley 120 that supports the inner liner tube 400.

[0064] The trenchless pipeline lining repair device 100 and method provided in this embodiment of the invention involve adjacent central conduit supports 110 being inserted into slots 116 via insert rods 115 to form a support group. The central conduit supports 110 are transported to a designated position within the pipeline 200 via pulley supports 114. The pulley supports 114 are removed from the support legs 113 and replaced with fixed supports 114' to ensure the stability of the central conduit supports 110 and the central conduit 300 on them. When the inner lining tube 400 is transported via the inner lining tube transport trolley 120, the fixed supports 114' at the corresponding position are removed before the inner lining tube 400 moves to the fixed supports 114', so that a gap is left between the support legs 113 and the inner lining tube 400 to form an unobstructed passage for the inner lining tube 400 to move to the designated position on the platform 112 of the central conduit support 110 without obstruction, thereby reducing the transportation difficulty of the inner lining tube 400.

[0065] The trenchless pipeline lining repair device 100 and method provided in this embodiment of the invention support the central conduit 300 with an arc-shaped bracket 111 so that the central conduit 300 and the pipeline 200 are coaxially arranged, thereby improving the sewage discharge performance after the central pipeline 200 is connected.

[0066] The trenchless pipeline lining repair device 100 and method provided in this invention have connectors that improve the overall stability of the lining pipe transport trolley 120. Supporting the lining pipe 400 on a non-metallic plate prevents scratches or damage to the lining pipe 400 and prevents it from sliding on the pad 124, thus improving the transport quality of the lining pipe 400.

[0067] Please refer to Figures 1 to 3 , Figure 9 To improve the stability of the inner lining pipe transport trolley 120 moving on the platform 112 of the central guide pipe support 110, the trenchless pipe lining repair device 100 and method provided in this embodiment of the invention include two grooved guide rails 117 arranged along the length of each platform 112 of the central guide pipe support 110. Wheels 122 move along the grooved guide rails 117 on the platform 112. That is, the wheels 122 move along the length of the grooved guide rails 117, improving the stability of the inner lining pipe transport trolley 120 and preventing deviation during movement.

[0068] Please refer to Figures 7 to 8 To improve the structural stability of the inner lining pipe transport trolley 120, the trenchless pipe lining repair device 100 and method provided in this embodiment of the invention may further include: a connector 125 connecting adjacent vertical support rods 123, wherein the connector 125 does not contact the central guide tube 300. The connector 125 may include a transverse member and an oblique member. The transverse member and the oblique member are connected to the higher vertical support rods 123 on both sides to form a support.

[0069] To ensure the central guide pipe support 110 can be stably supported on the inner wall of the pipe 200 after being moved to a designated position within the pipe 200, the trenchless pipe lining repair device 100 and method provided in this embodiment of the invention include a detachable pulley support foot 114 with a brake at the end of each of the legs 113, replacing the pulley support foot 114 without a brake and the fixed support foot 114'. In this case, the pulley support foot 114 with a brake reduces construction difficulty, simplifies construction steps, and improves construction efficiency.

[0070] To achieve the above objectives, the trenchless pipeline lining repair method provided in this embodiment of the invention may further include: detachably providing a braked pulley support foot 114 at the end of each of the support legs 113, replacing the unbraked pulley support foot 114 and the fixed support foot 114'; after the central guide tube 300 is transported to a designated position in the pipeline 200 by moving the braked pulley support foot 114 along the length of the pipeline 200, braking and supporting it on the inner wall of the pipeline 200 by the braked pulley support foot 114; removing the braked pulley support foot 114, and transporting a section of the inner lining tube 400 to the designated position by the inner lining tube transport trolley 120; providing a plug 130 between the support leg 113 and the inner lining tube 400, and pouring concrete between the pipeline 200 and the inner lining tube 400 to form a sealing layer 500.

[0071] The trenchless pipeline lining repair device 100 and method provided in this embodiment of the invention reduce workload and significantly reduce welding in the confined space of pipelines, thereby lowering safety risks.

[0072] This invention is not limited to the specific embodiments described above. Obviously, the embodiments described above are only a part of the embodiments of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the described embodiments of this invention are within the scope of protection of this invention. Those skilled in the art can make other modifications and variations to this invention. Therefore, if these modifications and variations of this invention fall within the scope of the claims of this invention, then this invention also intends to include these modifications and variations.

Claims

1. A pipeline trenchless lining repair device, characterized in that: include: There are at least two central catheter supports, each of which comprises an arc-shaped support coaxially arranged in the pipeline, two platforms symmetrically extending along the axis of the support and arranged on both sides of the support and not in contact with the inner liner, and four or more even-numbered legs symmetrically arranged on the support, the ends of the legs not in contact with the inner liner, and one of a pulley support foot without a brake and a fixed support foot detachably and replaceably arranged at the end of each leg, the pulley support foot without a brake and the fixed support foot are both arranged in contact with the inner wall of the pipeline, and an insertion rod and a slot are respectively arranged at both ends of the length direction of each platform, and the insertion rods of two adjacent central catheter supports are plug-in connected to the slots; The inner liner pipe transport cart is movably arranged on the central catheter support, including a base plate arranged above each of the platforms, each base plate is provided with at least four or more even number wheels, and the wheels move on the platform of the central catheter support, and each base plate is provided with multiple groups of vertical support rods of different heights from the outside to the inside in the width direction, and arc-shaped pads are arranged on the vertical support rods for supporting the inner liner pipe, and the pads include a metal plate located on the lower layer and a non-metal plate located on the upper layer.

2. The pipeline trenchless lining repair device according to claim 1 is characterized in that: Each of the platforms of the central catheter support is provided with two grooved guide rails along the length direction thereof, and the wheels move on the platform along the grooved guide rails.

3. The pipeline trenchless lining repair device according to claim 1, characterized in that: The liner pipe transport cart further comprises: a connector connected between adjacent vertical support rods, wherein the connector is not in contact with the central conduit.

4. The pipeline trenchless lining repair device according to claim 3 is characterized in that: The end of each support leg is detachably provided with a pulley support foot with a brake, which is used to replace the pulley support foot without a brake and the fixed support foot.

5. The pipeline trenchless lining repair device according to claim 1, characterized in that: The bracket is in a semicircular arc shape.

6. The pipeline trenchless lining repair device according to claim 1, characterized in that: The non-metallic plate is a rubber plate or a wooden plate.

7. A pipeline trenchless lining repair method, characterized in that: The pipeline trenchless lining repair device according to any one of claims 1 to 6 comprises: Install pulley support feet on the legs of each central catheter support, and assemble multiple central catheter supports through insertion rods and slots to form a support group; The central catheter is placed on the bracket of each central catheter holder of the holder group, and the central catheter is transported to the designated position of the pipeline by moving the central catheter in the length direction of the pipeline through the pulley support foot; Replace the pulley support feet on the legs of each central conduit support of the support group with fixed support feet and support them on the inner wall of the pipeline; A certain section of the liner pipe is placed on the pad of the liner pipe transport cart, and the liner pipe is transported to a designated position in the pipeline by moving the liner pipe transport cart on the bracket group, and when the liner pipe transport cart is moved to a certain central conduit bracket of the bracket group, the fixed legs on the corresponding central conduit bracket are removed, and the fixed legs on other central conduit brackets are retained, so that a gap is left between the liner pipe and the legs on the liner pipe transport cart to form an obstacle-free passage for the movement of the liner pipe; A plug is provided between the support leg and the inner liner, and concrete is poured between the pipeline and the inner liner to form a sealing layer, so that the designated position of the pipeline can be repaired through the inner liner and the sealing layer.

8. The pipeline trenchless lining repair method according to claim 7, characterized in that: Also includes: After the sealing layer between a certain section of liner pipe and the pipeline reaches the hardness standard, the next section of liner pipe is transported according to the above method. Adjacent sections of liner pipe are connected by water-stop rubber belts. After the connection, concrete is poured between the section of liner pipe and the pipeline at the corresponding position to form a sealing layer.

9. The pipeline trenchless lining repair method according to claim 7, characterized in that: Assemble the central catheter stent according to the length of each central catheter.

10. The pipeline trenchless lining repair method according to claim 7, characterized in that: A pulley support leg with a brake is detachably provided at the end of each of the legs, and is used to replace the pulley support leg without a brake and the fixed support leg; After the central conduit is transported to a designated position of the pipeline by moving the pulley support leg with a brake in the length direction of the pipeline, it is braked by the brake of the pulley support leg and supported on the inner wall of the pipeline; Remove the pulley support with brakes and transport a section of liner pipe to the designated location using the liner pipe transport cart; A plug is arranged between the supporting leg and the inner lining pipe, and concrete is poured between the pipeline and the inner lining pipe to form a sealing layer.

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