Joint coating device for reinforced repair of pipeline lining and repair method
Through the design of positioning inner cylinder and insertion plate structures, the problem of large space occupied by the mouthpiece in the prior art is solved, and the stable installation and use in small section space is achieved, the scope of application is expanded, and the risk of hose peeling is reduced. .
Patent Information
- Application Number
- CN202411520128.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2024-12-20
AI Technical Summary
In the existing pipeline repair technology, the pipe section space occupied by the top-in replenishing device is large, which limits its scope of application. When flange is connected, the flange structure is required for repairing the outer port of the pipe section, and the scope of application is limited.
Design a pipe lining-enhancing repair fixing device, adopting a positioning inner cylinder and insertion plate structure, through the expansion of the through-hole and the coordination of the guide slot, the outer peripheral surface of the positioning inner cylinder is pressed to reduce the installation space requirement. And through the sawtooth and convex structure, the stability of the insert plate and the fixation of the positioning inner cylinder are ensured to avoid dependence on the flange structure.
It realizes the stability and scope of repair without increasing the pipe section space, reduces the peeling of the hose during cutting and dragging, and improves the installation flexibility and scope of use of the mouthpiece.
Smart Images
Figure CN119163837A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of pipeline repair technology, and in particular to a patching device and a repair method for pipeline lining enhancement repair. Background Art
[0002] At present, the hose lining method has been widely used in pipeline construction at home and abroad for pipeline repair. The hose lining method is to line the inner wall of the existing old pipeline with a soft lining layer impregnated with liquid thermosetting resin, and solidify it by heating or at room temperature to form a thin layer of pipe that fits tightly with the old pipeline. There is almost no loss in the cross section of the pipeline, but its flow performance is greatly improved.
[0003] In order to ensure the connection quality between the end of the repaired pipe section and the end of the hose, in the prior art, after the hose lining construction is completed, a patching device is installed at the end of the repaired pipe section. The patching device is usually a top-entry pipe joint. The top-entry pipe joint usually includes at least two pipe fittings that are socketed with each other. It needs to occupy a larger cross-sectional space in the pipeline during installation. If it is necessary to reduce the pipeline cross-sectional space occupied by the patching device, it is necessary to provide additional installation space so that the top-entry pipe joint can be installed on the outside of the repaired pipe section in a flange connection manner. In this case, the outer port of the repaired pipe section is required to be a flange structure, so the scope of application is relatively limited. Summary of the invention
[0004] In order to minimize the cross-sectional space occupied by the patching device for pipeline lining repair while making the patching device have a wider scope of application, the present application provides a patching device and a repair method for pipeline lining enhancement repair.
[0005] The present application provides a pipe lining reinforcement repair patching device and repair method using the following technical solutions: A patching device for pipeline lining reinforcement and repair comprises a positioning inner tube, the positioning inner tube is provided with a through socket extending in the longitudinal direction, the through socket passes through both ends of the positioning inner tube, and the edges of the positioning inner tube located on both sides of the through socket are defined as socket edges; the positioning inner tube is provided with a plug plate, the plug plate is plugged into the through socket, the plug plate is used to force the through socket to expand, the socket edge is provided with a guide slot for guiding the plug plate edge, and the notches of the guide slots on the two socket edges are arranged relatively.
[0006] By adopting the above technical solution, after the hose is inserted into the repaired pipe section and solidified, the positioning inner tube of the patching device is inserted into the port of the repaired pipe section, and then the plug plate is inserted into the through-hole. During this period, the edge of the plug plate is guided by the guide slot. As the plug-in and pull-out gradually penetrate into the through-hole, the plug plate can force the through-hole to gradually expand, causing the positioning inner tube to generate an outward deformation force, so that the outer peripheral surface of the positioning inner tube presses the hose against the inner wall of the repaired pipe section, so that the installation state of the end of the hose remains stable. The positioning inner tube of the patching device is a single pipe fitting, which occupies a smaller cross-sectional space of the repaired pipe section during installation, and the installation of the patching device does not need to rely on the flange structure, so that the patching device can have a wider range of applications.
[0007] Optionally, the cylinder wall of the positioning inner cylinder includes an outer wall, an inner wall and an interlayer inner wall which are concentrically arranged, the interlayer inner wall is located between the outer wall and the inner wall, the arc angle of the outer wall and the arc angle of the inner wall are both larger than the arc angle of the interlayer inner wall, and the area between the edge of the outer wall, the edge of the inner wall and the edge of the interlayer inner wall serves as the guide slot.
[0008] By adopting the above technical solution, the guide slot is formed by utilizing the staggered dislocation between the outer wall edge, the inner wall edge and the inner wall edge of the interlayer, so that the forming method of the guide slot is relatively simple and the structural strength of the slot wall of the guide slot can be made more reliable.
[0009] Optionally, both the outer side wall and the inner side wall are provided with through holes, and the edges of the through holes are fixed to the inner wall of the interlayer by welding.
[0010] By adopting the above technical solution, the outer wall and the inner wall are respectively welded and fixed to the inner wall of the interlayer through the edges of their respective through holes, so that the weld between the outer wall and the inner wall of the interlayer can be hidden in the through hole, which is beneficial to reduce the situation where the raised structure is formed on the surface of the outer wall to scratch the hose, which is beneficial to protect the hose.
[0011] Optionally, first saw teeth are respectively provided on both side edges of the plug plate, and second saw teeth are provided on the edge of the inner wall of the interlayer, the second saw teeth are meshed with the first saw teeth, and the tooth tips of the second saw teeth are inclined away from the outer port of the positioning inner tube.
[0012] By adopting the above technical solution, when the plug-in is inserted into the through socket, the first serration of the plug-in plate is meshed with the second serration. Since the tooth tip of the second serration is inclined away from the outer port of the positioning inner tube, the second serration can hinder the backward movement of the first serration, which is beneficial to keep the plug-in state between the plug-in plate and the through socket stable.
[0013] Optionally, the outer wall is provided with outer convex teeth on both side edges close to the through socket, and the outer convex teeth on both sides of the outer wall are staggered; the inner wall is provided with inner convex teeth on both side edges close to the through socket, and the inner convex teeth on both sides of the inner wall are staggered.
[0014] By adopting the above technical solution, the outer convex teeth and the inner convex teeth can limit the plug plate, so that the installation state of the plug plate can be further stabilized. The outer convex teeth on both sides of the outer wall are staggered, so that the positioning inner tube and the hose can form a full circumference contact, which is conducive to improving the pressing effect of the positioning inner tube on the hose.
[0015] Optionally, the tooth ends of the external convex teeth are inclined toward the center of the positioning inner cylinder, and the tooth ends of the internal convex teeth are inclined away from the center of the positioning inner cylinder.
[0016] By adopting the above technical solution, when the plug board is inserted into the through socket, the edge of the concave notch can force the outer convex teeth and the inner convex teeth on the same side to open to each other. As the plug board is inserted into the inner side of the through socket, the outer convex teeth and the inner convex teeth on the same side jointly clamp the plug board, so that the installation state of the plug board is further stabilized.
[0017] Optionally, the insert plate has an arc, the curvature of the insert plate is the same as the curvature of the positioning inner cylinder, and the center line of the curvature of the insert plate coincides with the center line of the curvature of the positioning inner cylinder.
[0018] By adopting the above technical solution, the curvature center of the plug plate coincides with the curvature center of the positioning inner tube, which is conducive to better transmission of circumferential load between the plug plate and the positioning inner tube, so that the positioning inner tube can better press the hose against the inner wall of the repaired pipe.
[0019] A method for enhancing and repairing the lining of a pipeline, based on any one of the above-mentioned patching devices for enhancing and repairing the lining of a pipeline, comprises the following steps: cleaning the inner wall of the pipe section to be repaired; pouring repair resin into the lining hose and rolling the lining hose evenly; inserting the lining hose into the pipe section to be repaired; cutting off the portion of the lining hose extending out of the pipe section to be repaired; installing the positioning inner cylinder of the patching device onto the pipe section to be repaired, and inserting the plug plate into the through socket of the positioning inner cylinder.
[0020] By adopting the above technical solution, the connection between the end of the hose and the outer port of the repaired pipe section is reinforced by using a patching device, thereby reducing the peeling of the end of the hose.
[0021] Optionally, when the cut liner hose extends out of the repaired pipe section, the positioning inner tube of the patching device is inserted into the repaired pipe section, and then the cutting tool pierces the hose at the through-hole, and then the positioning inner tube is rotated while the cutting tool is used to cut the hose along the edge of the pipe mouth of the repaired pipe section.
[0022] By adopting the above technical solution, when using a tool to cut the hose, the outer peripheral surface of the positioning inner tube can make the parts of the hose other than the cut part keep in close contact with the inner wall of the repaired pipe section as much as possible, thereby reducing the situation where the hose is partially peeled off from the inner wall of the repaired pipe section under the cutting force and dragging force.
[0023] Optionally, in the process of assisting the cutting of the hose with the help of the positioning inner tube, before placing the positioning inner tube into the repaired pipe, first stick tape on the outer circumference of the positioning inner tube so that the tape covers the through-hole area; when using the cutting tool to cut the hose, first pierce the tape and then pierce the hose.
[0024] By adopting the above technical solution, the through-hole area of the positioning inner cylinder is covered with tape, so that the edge of the through-hole is less likely to scratch the hose during the rotation of the positioning inner cylinder.
[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. When using the patching device for pipeline lining reinforcement repair, insert the positioning inner tube of the patching device into the port of the repaired pipe section, and then insert the plug plate into the through-hole. The plug plate can force the through-hole to gradually expand, so that the outer peripheral surface of the positioning inner tube presses the hose against the inner wall of the repaired pipe section, so that the installation state of the end of the hose remains stable. The positioning inner tube of the patching device is a single pipe fitting, which occupies a smaller cross-sectional space of the repaired pipe section during installation, and the installation of the patching device does not need to rely on the flange structure, so that the patching device can have a wider range of applications.
[0026] 2. When the plug is inserted into the through socket, the first serration of the plug plate meshes with the second serration. Since the tooth tip of the second serration is inclined away from the outer port of the positioning inner tube, the second serration can hinder the backward movement of the first serration, thereby facilitating the stable plug-in state between the plug plate and the through socket.
[0027] 3. In the pipeline lining reinforcement repair step, when using a tool to cut the hose, the outer circumferential surface of the positioning inner tube can keep the parts of the hose other than the cut as close to the inner wall of the repaired pipe section as possible, thereby reducing the situation where the hose is partially peeled off from the inner wall of the repaired pipe section under the cutting force and dragging force. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a schematic structural diagram of the patching device for pipe lining reinforcement repair in Example 1.
[0029] Figure 2 It is a schematic diagram of the patching device for pipe lining reinforcement repair in Example 1 when the plug plate is withdrawn from the through-plug state.
[0030] Figure 3It is a schematic diagram of Example 1 for reflecting the positional relationship between the plug board and the inner wall of the interlayer.
[0031] Figure 4 It is a schematic structural diagram of the patching device for pipe lining reinforcement repair in Example 1.
[0032] Description of reference numerals: 1. Positioning inner tube; 11. Outer wall; 111. Outer convex teeth; 12. Inner wall; 121. Inner convex teeth; 13. Inner wall of interlayer; 131. Second serration; 2. Limiting flange; 3. Through socket; 4. Insert plate; 41. First serration; 42. Inner concave notch; 5. Guide slot; 6. Through hole. DETAILED DESCRIPTION
[0033] The following is combined with Figure 1-4 This application is described in further detail.
[0034] Example 1 The present application embodiment discloses a patching device for enhancing and repairing the inner lining of a pipeline. Figure 1 and Figure 2 The patching device for pipeline lining reinforcement repair comprises a positioning inner tube 1, a limiting flange 2 is welded and fixed at one end of the positioning inner tube 1, the limiting flange 2 is used to abut against the port of the repaired pipe, the positioning inner tube 1 is provided with a through socket 3 extending in the longitudinal direction, the through socket 3 runs through the two ends of the positioning inner tube 1, and the edges of the positioning inner tube 1 located on both sides of the through socket 3 are defined as socket edges; the positioning inner tube 1 is provided with a plug plate 4, the plug plate 4 is plugged into the through socket 3, the plug plate 4 is used to force the through socket 3 to expand, and a guide slot 5 is provided at the edge of the socket for guiding the edge of the plug plate 4, and the notches of the guide slots 5 on the two socket edges are arranged relatively.
[0035] When installing the patching device, place the positioning inner tube 1 on the outer port area of the pipe section to be repaired whose inner wall is attached with a hose lining, and make the limiting flange 2 of the positioning inner tube 1 contact the port edge of the pipe section to be repaired, then insert the plug plate 4 into the through socket 3 of the positioning inner tube 1 to make the positioning inner tube 1 expand and deform outward, so that the positioning inner tube 1 presses the hose against the inner wall of the pipe section to be repaired, so that the installation state of the end of the hose remains stable.
[0036] When the pipe lining reinforcement and repair patching device of this embodiment is applied to the three-way connection of the pipe, the limiting flange 2 can be replaced by a rod-shaped structure vertically welded to the outer peripheral surface of the positioning inner tube 1. The rod-shaped structure is used to abut the inner wall of the bypass port at the three-way connection, so as to form a limiting effect on the patching device.
[0037] Reference Figure 1The cylinder wall of the positioning inner cylinder 1 includes an outer wall 11, an inner wall 12 and an interlayer inner wall 13 which are arranged concentrically. The outer wall 11, the inner wall 12 and the interlayer inner wall 13 are all made of steel materials. The interlayer inner wall 13 is located between the outer wall 11 and the inner wall 12. The outer wall 11 and the inner wall 12 are both provided with through holes 6. The edges of the through holes 6 are welded and fixed to the interlayer inner wall 13. The arc angles of the outer wall 11 and the inner wall 12 are both greater than the arc angle of the interlayer inner wall 13. The arc length midpoints of the outer wall 11, the inner wall 12 and the interlayer inner wall 13 are aligned with each other. The area between the edge of the outer wall 11, the edge of the inner wall 12 and the edge of the interlayer inner wall 13 serves as a guide slot 5.
[0038] Reference Figure 1 and Figure 2 The outer wall 11 is provided with outer protruding teeth 111 on both sides of the outer wall 11 near the through socket 3, and the outer protruding teeth 111 on both sides of the outer wall 11 are staggered; the inner wall 12 is provided with inner protruding teeth 121 on both sides of the inner wall 12 near the through socket 3, and the inner protruding teeth 121 on both sides of the inner wall 12 are staggered. The outer protruding teeth 111 and the inner protruding teeth 121 can form a retaining effect on the plug board 4, making the plugging state of the plug board 4 more stable. In addition, the staggered outer protruding teeth 111 can make the positioning inner cylinder 1 abut against the hose in the entire circumference, which is conducive to improving the pressing effect of the positioning inner cylinder 1 on the hose.
[0039] Reference Figure 2 The tooth end of the outer convex tooth 111 is inclined toward the center of the positioning inner tube 1, and the tooth end of the inner convex tooth 121 is inclined away from the center of the positioning inner tube 1. An inner concave notch 42 is provided at one end of the plug plate 4 away from the outer port of the positioning inner tube 1. The inner concave notch 42 is an arc notch or a triangular notch, so that the width of the inner concave notch 42 gradually decreases from the opening position.
[0040] When the plug board 4 is inserted into the through socket 3, the plug board 4 can force the outer protruding teeth 111 and the inner protruding teeth 121 to open each other. When the plug board 4 is inserted, the outer protruding teeth 111 and the inner protruding teeth 121 are both in a deformed state, so that the outer protruding teeth 111 and the inner protruding teeth 121 tighten the plug board 4. During the insertion of the plug board 4 between the outer protruding teeth 111 and the inner protruding teeth 121, the edge of the inner concave notch 42 has a guiding effect on the deformation displacement of the outer protruding teeth 111 and the inner protruding teeth 121.
[0041] The plug plate 4 is an arc-shaped plate, and the length direction of the plug plate 4 is along the curvature centerline direction of the plug plate 4. The curvature of the plug plate 4 is the same as the curvature of the positioning inner cylinder 1, and the curvature centerline of the plug plate 4 coincides with the curvature centerline of the positioning inner cylinder 1.
[0042] In this embodiment, the width of the plug plate 4 remains unchanged. In other embodiments, the plug plate 4 can also be set to have a gradually changing width, so that when the plug plate 4 is inserted into the through socket 3, the outward expansion deformation of the positioning inner tube 1 can be gradually increased.
[0043] Reference Figure 3 The edges of both sides of the plug plate 4 are respectively provided with first serrations 41, and the edge of the interlayer inner wall 13 is provided with second serrations 131, the second serrations 131 are meshed with the first serrations 41, the tooth tips of the second serrations 131 are inclined away from the outer port of the positioning inner tube 1, and the tooth tips of the first serrations 41 are inclined toward the outer port of the positioning inner tube 1. When the plug plate 4 is plugged into the through socket 3, the second serrations 131 have the function of preventing the first serrations 41 from retreating, so that the plug-in state between the plug plate 4 and the positioning inner tube 1 remains stable.
[0044] In this embodiment, when the outer port of the repaired pipe section is a flange structure, the limiting flange 2 is abutted against the sealing surface of the flange, so that the limiting flange 2 and the sealing ring of the flange structure are simultaneously in the sealing gap of the flange connection structure, so as to use the flange structure to axially position the patching device, so that the installation position of the patching device is more stable. The positioning inner tube 1 of the patching device is a single pipe fitting, which occupies a smaller cross-sectional space of the repaired pipe section during installation, and the installation of the patching device does not need to rely on the flange structure, so that the patching device can have a wider range of applications.
[0045] This embodiment also discloses a pipeline lining reinforcement repair method, referring to Figure 4 The patching device for pipeline lining enhancement repair mentioned above comprises the following steps: Step 1: Use a pipeline inspection robot to inspect the repaired pipe section and use a high-speed rotating water gun to clean the inner wall of the repaired pipe section; Step 2: According to the detection results of the pipeline detection robot, cut the lining hose of appropriate length, pour the repair resin into the lining hose, and roll the lining hose evenly; Step 3, coil the lining hose around the inside of the hose reversing device, fix one end of the lining hose to the outlet of the hose reversing device, inflate and pressurize the hose reversing device, and blow the lining hose into the repaired pipe section; Step 4, when the resin material is solidified, cut off the part of the lining hose extending out of the pipe section to be repaired; install the positioning inner tube 1 of the patching device to the pipe section to be repaired, so that the limiting flange 2 of the positioning inner tube 1 abuts against the port of the pipe section to be repaired; insert the plug plate 4 into the through socket 3 of the positioning inner tube 1.
[0046] Step 4: When the cut lining hose extends out of the repaired pipe section, first stick tape on the outer circumference of the positioning inner tube 1 of the patching device so that the tape covers the through-hole 3 area, then insert the positioning inner tube 1 of the patching device into the repaired pipe section, and then use the cutting tool to pierce the tape and the parts of the hose corresponding to the through-hole 3 in turn, and then rotate the positioning inner tube 1 while cutting the hose with the cutting tool. In this process, the outer circumference of the positioning inner tube 1 can make the parts of the hose other than the cutting fit the inner wall of the repaired pipe section as much as possible, so as to reduce the local peeling of the hose under the cutting force and dragging force.
[0047] When the hose cutting is completed, the positioning inner tube 1 is taken out, the tape on the surface of the positioning tube is removed, and then the positioning inner tube 1 is installed to the outer port of the repaired pipe section.
[0048] Example 2 Reference Figure 4 The difference between this embodiment and the first embodiment is that: the outer wall 11 is not provided with the outer protruding teeth 111, and the inner wall 12 is not provided with the inner protruding teeth 121. The thickness of the middle of the insert plate 4 is equal to the overall thickness of the positioning inner tube 1, and the thickness of the two sides of the insert plate 4 is equal to the thickness of the interlayer inner wall 13 of the positioning inner tube 1.
[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A patching device for pipeline lining reinforcement repair, characterized in that: The invention comprises a positioning inner cylinder (1), wherein the positioning inner cylinder (1) is provided with a through socket (3) extending in the longitudinal direction, wherein the through socket (3) penetrates through both ends of the positioning inner cylinder (1), and the edges of the positioning inner cylinder (1) located on both sides of the through socket (3) are defined as socket edges; the positioning inner cylinder (1) is provided with a plug plate (4), wherein the plug plate (4) is plugged into the through socket (3), wherein the plug plate (4) is used to force the through socket (3) to expand, and a guide slot (5) is provided at the socket edge for guiding the edge of the plug plate (4), wherein the notches of the guide slot (5) on the two socket edges are arranged relative to each other.
2. A patching device for pipeline lining reinforcement repair according to claim 1, characterized in that: The cylinder wall of the positioning inner cylinder (1) comprises an outer wall (11), an inner wall (12) and an interlayer inner wall (13) which are arranged concentrically, the interlayer inner wall (13) being located between the outer wall (11) and the inner wall (12), the arc angle of the outer wall (11) and the arc angle of the inner wall (12) being greater than the arc angle of the interlayer inner wall (13), and the area between the edge of the outer wall (11), the edge of the inner wall (12) and the edge of the interlayer inner wall (13) serving as the guide slot (5).
3. A patching device for pipeline lining reinforcement repair according to claim 2, characterized in that: The outer side wall (11) and the inner side wall (12) are both provided with a through hole (6), and the edge of the through hole (6) is fixedly welded to the interlayer inner wall (13).
4. A patching device for pipeline lining reinforcement repair according to claim 2, characterized in that: The edges of both sides of the insert plate (4) are respectively provided with first saw teeth (41), and the edge of the interlayer inner wall (13) is provided with second saw teeth (131), the second saw teeth (131) mesh with the first saw teeth (41), and the tooth tips of the second saw teeth (131) are inclined away from the outer port of the positioning inner cylinder (1).
5. The patching device for pipeline lining reinforcement repair according to claim 2, characterized in that: The outer side wall (11) is provided with outer convex teeth (111) on both side edges close to the through socket (3), and the outer convex teeth (111) on both side edges of the outer side wall (11) are staggered; the inner side wall (12) is provided with inner convex teeth (121) on both side edges close to the through socket (3), and the inner convex teeth (121) on both side edges of the inner side wall (12) are staggered.
6. A patching device for pipeline lining reinforcement repair according to claim 5, characterized in that: The tooth ends of the outer convex teeth (111) are inclined toward the center of the positioning inner cylinder (1), and the tooth ends of the inner convex teeth (121) are inclined away from the center of the positioning inner cylinder (1).
7. The patching device for pipeline lining reinforcement repair according to claim 1, characterized in that: The insert plate (4) has an arc, the curvature of the insert plate (4) is the same as the curvature of the positioning inner cylinder (1), and the curvature center line of the insert plate (4) coincides with the curvature center line of the positioning inner cylinder (1).
8. A pipeline lining reinforcement repair method, based on the pipeline lining reinforcement repair patching device according to any one of claims 1 to 7, characterized in that: The steps include: Clean the inner wall of the repaired pipe section; Pour the repair resin into the lining hose and roll the lining hose evenly; Insert the lining hose into the repaired pipe section; The portion of the lining hose extending out of the pipe section to be repaired is cut off; the positioning inner tube (1) of the patching device is installed on the pipe section to be repaired, and the plug plate (4) is inserted into the through socket (3) of the positioning inner tube (1).
9. A pipeline lining reinforcement and repair method according to claim 8, characterized in that: When the cut lining hose extends out of the repaired pipe section, the positioning inner tube (1) of the patching device is inserted into the repaired pipe section, and then the cutting tool pierces the hose at the through-hole (3), and then the positioning inner tube (1) is rotated while the cutting tool is used to cut the hose.
10. A pipeline lining reinforcement and repair method according to claim 9, characterized in that: In the process of assisting the cutting of the hose with the aid of the positioning inner tube (1), before the positioning inner tube (1) is placed in the repaired pipe, a tape is firstly attached to the outer peripheral surface of the positioning inner tube (1) so that the tape covers the area of the through-hole (3); when the hose is cut with the cutting tool, the tape is firstly pierced and then the hose is pierced.