A pipeline repair device matching profile

Abstract

The present invention provides an integrated pipeline repair device, the device includes a spiral winding device and a duckbill propping device; wherein the spiral winding device is used to spirally wind the profile on the inner wall of the pipeline to form an inner liner; the spiral winding device includes: a support system, a power system, a feeding profile system and a pipe wall support system; the pipe wall support system is used to lift up the collapsed part in the pipeline to restore the cross-section of the inner wall of the pipeline to a circular shape; the duckbill propping device is rotatably connected to the spiral winding device and is used to prop up the collapsed area of ​​the pipeline; the duckbill propping device includes a driving system and a propping system. The advantages of the present invention are: the overall replacement and update of the pipeline can be achieved without excavation, and the inner liner pipeline fits the original pipeline after repair, avoiding a significant reduction in the amount of water flowing through the pipeline after repair, greatly improving the repair efficiency of plastic pipes, and reducing the repair cost and repair period.

Description

[0001] This application is a division of the invention application with application number "202311259999.7", invention name "A pipeline integrated repair device", and application date of September 27, 2023. Technical Field

[0002] The present invention belongs to the technical field of trenchless pipeline repair, is applicable to defects such as collapse, damage, deformation, corrosion, aging, etc. of plastic pipelines, and specifically relates to an integrated pipeline repair device. Background Art

[0003] Underground plastic sewage pipes, plastic drainage pipes, etc. have degraded their bearing capacity due to the increase in service life. As the ground topography changes due to urban construction, expansion, and renovation, the ground load increases and exceeds the pipe's own bearing capacity, which will cause the pipe to deform or collapse, affecting the drainage and sewage discharge function of the pipe. If the deformation or collapse of underground pipes cannot be solved in time, there will be a risk of sewage overflow and pollution of the surrounding environment or cause road collapse. Therefore, it is necessary to repair deformed or collapsed pipes in a timely manner to ensure their normal drainage and sewage discharge functions.

[0004] At present, the repair of deformed or collapsed plastic pipes is mostly carried out by local excavation of the deformed or collapsed parts, which has a great impact on the environment and road traffic, and has a long construction period, low repair efficiency and high repair cost. After the pipe is repaired, it is also necessary to backfill and restore the original landform, which greatly increases the cost of pipe repair and reduces the efficiency of pipe repair.

[0005] In order to avoid the various problems caused by excavation repair of pipelines, trenchless pipeline repair technology has gradually emerged. It usually uses plastic pipe deformation support equipment (such as jacks, etc.) to first support the deformed part of the pipeline, and then pull in repair airbags and stainless steel quick locks to implement local repairs. The steps are cumbersome and not suitable for the overall renewal of aging pipelines.

[0006] Spiral winding technology is a commonly used trenchless pipeline repair technology that can achieve the overall renewal and replacement of pipelines. According to the different working positions of the winding machine, the winding methods can be divided into fixed spiral winding and mobile spiral winding. The fixed spiral winding machine is fixed in the inspection well and the new pipe is pushed forward along the original pipe. During the mobile spiral winding process, the winding machine spirals forward while winding to form a new pipe inside the pipe, and is generally used for larger pipe diameters. However, the new liner pipes wound by these devices are all pipes of fixed diameter. In order to ensure that the new liner pipe can be smoothly pushed forward, the diameter of the liner pipe is usually smaller than the original pipe, which leads to a gap between the liner pipe and the original pipe, which requires grouting and filling, which greatly reduces the diameter of the repaired and updated pipe, and directly affects the water flow rate of the pipe. In addition, this method can only solve pipeline damage such as pipeline corrosion, aging, wear and leakage, and is difficult to use for working conditions such as deformation and collapse of the original pipeline.

[0007] Therefore, there is an urgent need for a repair device suitable for deformed or collapsed plastic pipes, and an improvement on the existing repair method for plastic pipes to solve the above problems. Summary of the invention

[0008] The purpose of the present invention is to overcome the defects that there is a gap between the liner pipe generated by the existing mobile spiral winding equipment and the original pipeline, and construction cannot be carried out in a collapsed pipeline.

[0009] In order to achieve the above-mentioned object, the present invention proposes an integrated pipeline repair device, which includes a spiral winding device and a duckbill propping device; wherein,

[0010] The spiral winding device is used to spirally wind the profile on the inner wall of the pipe to form an inner liner pipe;

[0011] The spiral winding equipment includes: a support system, a power system, a feeding profile system and a pipe wall top support system; wherein,

[0012] The support system is located at the center of the spiral winding device, and the power system, the feeding profile system and the pipe wall support system are fixed around the support system;

[0013] The power system is used to drive the spiral winding device to rotate as a whole;

[0014] The feeding profile system is used to feed the profile during the rotation of the spiral winding device, and to press the profile spirally against the inner wall of the pipe so that each circle of the profile meshes to form an inner liner pipe;

[0015] The pipe wall support system is used to lift up the collapsed part of the pipe to restore the cross section of the inner wall of the pipe to a circular shape;

[0016] The duckbill propping device is rotatably connected to the spiral winding device and is used to prop up the collapsed area of ​​the pipeline;

[0017] The duckbill propping device includes a driving system and a propping system; wherein,

[0018] A driving system, used for driving the duckbill supporting device to move along the pipeline axis;

[0019] A propping system is used to prop up collapsed areas of the pipe.

[0020] As an improvement of the above device, the drive system includes a connecting hydraulic cylinder rotatably connected to the spiral winding device;

[0021] One end of the connecting hydraulic cylinder is fixedly connected to the supporting device body;

[0022] A plurality of wheels are installed below the supporting device body.

[0023] The propping system includes a propping hydraulic cylinder;

[0024] A sliding block is arranged at the tail of the supporting hydraulic cylinder;

[0025] A vertically mounted slider shaft is provided on the supporting device body;

[0026] The slider is sleeved on the slider shaft and can move up and down along the slider shaft;

[0027] One end of the two duckbill supporters is a circular arc sheet structure, and the other end is a duckbill handle;

[0028] One end of the duckbill handle is hinged to the supporting device body, and the other end is fixedly connected to the arc sheet structure;

[0029] The inner side of the circular arc of the circular arc sheet structure is hinged to one end of a duckbill connecting rod, and the other end of the duckbill connecting rod is hinged to the head of the supporting hydraulic cylinder.

[0030] As an improvement of the above device, the support system includes a cylindrical central shell;

[0031] A plurality of groups of roller support rods are fixed to the outer side of the central housing cylinder; each group of roller support rods includes a plurality of roller support rods evenly distributed along the radial cross section of the outer side of the cylinder;

[0032] A plurality of retractable hydraulic cylinders are hingedly connected to the middle of the outer side of the central housing cylinder; the plurality of hydraulic cylinders are evenly distributed along the radial cross section of the outer side of the cylinder;

[0033] A hydraulic slip ring is arranged at one end of the central housing; the hydraulic slip ring is used for connecting a hydraulic pipe.

[0034] As an improvement of the above device, the power system includes a first hydraulic motor, a motor support rod and a first gear set; wherein,

[0035] One end of the motor support rod is fixedly connected to an end of the central housing opposite to the hydraulic slip ring, and the other end is fixed to the first hydraulic motor;

[0036] The first gear set is two gears meshing with each other, wherein the shaft of one of the gears is fixedly connected to the output shaft of the first hydraulic motor.

[0037] As an improvement of the above device, the feeding profile system includes a winding head, a positioning structure and an extrusion profile roller; wherein,

[0038] The winding machine head is used to feed the profile;

[0039] The positioning structure is used to straighten the profile during the feeding process of the profile and smoothly input the profile into the winding mechanism;

[0040] The extrusion profile roller is used to extrude the profile output by the winding machine head toward the inner wall of the pipeline so that each circle of the profile meshes with each other.

[0041] As an improvement of the above device, the winding head includes a second hydraulic motor, a head frame, a pressure roller shaft, a matching roller and a second gear set;

[0042] One end of the head frame is fixed to the outside of the central shell cylinder, and the other end is a U-shaped structure;

[0043] The second hydraulic motor is fixed on the outside of the U-shaped structure of the head frame; the output shaft of the second hydraulic motor is fixedly connected to the axis of the matching roller;

[0044] The second gear set is a pair of gears meshing with each other, wherein the axis of one gear is fixedly connected to the axis of the matching roller, and the axis of the other gear is fixedly connected to the axis of the pressure roller shaft;

[0045] The pressure roller shaft is a cylindrical structure with two different structures, one section is a cylindrical structure with a fixed diameter, and the other section is a cylindrical structure with a groove that matches the surface shape of the profile;

[0046] The matching roller is a cylindrical structure with two sections of different diameters, one section of the cylindrical structure is in close contact with the cylindrical structure of the fixed diameter of the pressing roller shaft, and the other section of the cylindrical structure and the cylindrical structure with the groove of the pressing roller shaft tightly squeeze the profile;

[0047] The axis of the cylindrical structure of the pressure roller shaft and the matching roller can be rotatably fixed on the two inner side walls of the U-shaped structure of the head frame.

[0048] As an improvement of the above device, a plurality of the positioning structures are fixed on the outer side of the cylindrical surface of the central housing along the profile feeding path;

[0049] The positioning structure includes a positioning bracket and two rollers;

[0050] One end of the positioning bracket is fixed to the outer side of the cylindrical surface of the central housing, and the other end is a U-shaped bracket;

[0051] The roller includes a cylindrical structure and a cylindrical structure with a groove matching the surface shape of the profile, and the shafts of the two cylindrical structures are rotatably fixed on the two inner side walls of the U-shaped bracket of the positioning bracket.

[0052] As an improvement of the above device, the extruded profile roller is located at the outlet side of the winding head feeding the profile;

[0053] The main body of the extruded profile drum is a cylindrical structure, and the head is a cylindrical structure with a diameter thicker than the main body;

[0054] The axis of the extruded profile roller is hinged to a plurality of connecting rods, and the other end of the connecting rod is hinged to the roller support rod;

[0055] The axis center in the middle of the extrusion profile drum is hinged to the hydraulic cylinder.

[0056] As an improvement of the above device, the pipe wall supporting system includes a plurality of rollers; the plurality of rollers and one extruded profile roller are evenly distributed around the cylindrical side of the central shell;

[0057] The structure of the drum is a cylindrical structure with steps; the front end of the drum is a conical structure, the conical structure extends backward to form a cylindrical structure with the same diameter as the bottom surface of the conical structure, and then extends backward to form a cylindrical structure with a thinner diameter;

[0058] The axis of the drum is hinged to a plurality of connecting rods, and the other end of the connecting rod is hinged to the drum support rod;

[0059] The axis at the middle of the drum is hinged to the hydraulic cylinder;

[0060] One end of a thinner cylindrical structure of one of the multiple rollers is connected to the power system and is driven to rotate by the power system.

[0061] As an improvement to the above device, the dividing points of two cylindrical structures with different diameters on the multiple rollers and the extruded profile roller are connected to form a spiral line.

[0062] Compared with the prior art, the advantages of the present invention are:

[0063] In view of the shortcomings of existing equipment for repairing deformation and collapse of small-diameter plastic pipes, the present invention provides an integrated pipe repair device, which can be used to repair deformed or collapsed small-diameter plastic pipes, especially for plastic pipes with larger collapse, so that the entire pipe can be replaced and updated without excavation. After the repair, the lining pipe fits the original pipe, avoiding a significant reduction in the amount of water flowing through the pipeline after the repair, greatly improving the repair efficiency of the plastic pipe and reducing the repair cost and repair period. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 The figure shows the structure diagram of the integrated pipeline repair device;

[0065] Figure 2 Shown is a structural diagram of one side of the spiral winding equipment;

[0066] Figure 3 Shown is a structural diagram of the other side of the spiral winding device;

[0067] Figure 4 The figure shows the working effect of the winding head of the spiral winding equipment;

[0068] Figure 5 The figure shows the shape of the drum;

[0069] Figure 6 The figure shows the position diagram of the roller diameter change;

[0070] Figure 7 Shown is a structural diagram of the positioning structure;

[0071] Figure 8 The structure diagram of the duckbill support equipment is shown;

[0072] Fig. 9 The figure shows the state of the duckbill supporting device when the duckbill supporting device is not supported;

[0073] Fig.10 The figure shows the state of the duckbill supporting device of the duckbill supporting device when the duckbill supporting device is supported;

[0074] Fig.11 The figure shows the working schematic diagram of the pipeline integrated repair device;

[0075] Fig.12 Shown is a schematic diagram of the process of forming a pipeline from a profile.

[0076] Reference numerals:

[0077] 101. Spiral winding equipment 102. Duckbill support equipment

[0078] 103. Pipeline collapsed area 104. Area collapsed again after propping up

[0079] 1. Winding machine 2. Hydraulic pump station

[0080] 3. Profile 4. Hydraulic oil pipe

[0081] 5. Integrated pipeline repair device 6. Underground pipeline

[0082] 7. Liner pipe 8. Rear wellhead

[0083] 9. Wellhead ahead

[0084] 11. First hydraulic motor 12. Motor support rod

[0085] 13. Central housing 14. Second hydraulic motor

[0086] 16. Matching roller 17. Pressing roller shaft

[0087] 18. Second gear set 19. Head frame

[0088] 20. Roller A 201. Extrusion profile roller B

[0089] 202, driving roller 21, roller support rod

[0090] 22. Hydraulic cylinder 23. First profile positioning structure

[0091] 231, positioning bracket 232, roller

[0092] 24. Second profile positioning structure 25. Connecting rod

[0093] 26. First gear set 27. Hydraulic slip ring

[0094] 28. Connect the hydraulic cylinder 29. Slider shaft

[0095] 30. Support hydraulic cylinder 31. Duckbill support device

[0096] 32. Duckbill connecting rod 33. Support the main body of the equipment

[0097] 34. Wheel 35. Arc sheet structure

[0098] 36. Duckbill handle 37. Slider DETAILED DESCRIPTION

[0099] The technical solution of the present invention is described in detail below with reference to the accompanying drawings.

[0100] The present invention provides an integrated pipeline repair device, which can be used to operate on deformed or collapsed small-diameter plastic pipelines, and the entire pipeline can be replaced and updated without excavation. After the repair, the lining pipeline fits the original pipeline, avoiding a significant reduction in the amount of water flowing through the pipeline after the repair, greatly improving the repair efficiency of the plastic pipeline, and reducing the repair cost and repair period.

[0101] like Figure 1 As shown, the device includes a spiral winding device 101 and a duckbill propping device 102. The duckbill propping device 102 props up the collapsed area 103 of the pipeline through the duckbill, and the spiral winding device 101 rotates to realize the periodic propping up of the collapsed area 104 again, and spirally winds the strip-shaped repair profile into an inner liner pipe, while moving forward along the spiral path of the profile. The device can be applied to working conditions where the pipeline collapses and deforms. It is especially suitable for complex working conditions such as plastic pipelines that are aging, deformed in multiple places, and small-scale collapse, corrosion, and leakage, which require the entire pipeline to be replaced.

[0102] like Figure 2 , Figure 3 As shown, the center of the spiral winding device 101 is a cylindrical center shell 13;

[0103] Five rollers A20 and one winding head are arranged around the central housing 13 , and the rollers 20 are connected to the central housing 13 through a hydraulic cylinder 22 , a roller support rod 21 and a connecting rod 25 .

[0104] The hydraulic cylinders 22 are double-ear ring type hydraulic cylinders. The lower ends of the five hydraulic cylinders 22 are connected to the central housing 13, and the upper ends are connected to the shaft of the drum 20. The five hydraulic cylinders 22 can be extended and retracted synchronously.

[0105] The center housing 13 is provided with a plurality of groups of roller support rods 21 , with at least one group at the front and one at the back, and three roller support rods in each group. The roller support rods 21 are directly fixed on the center housing 13 .

[0106] In each group of three roller support rods 21, one end of two roller support rods 21 is connected to two connecting rods 25 respectively, and the two connecting rods 25 are respectively connected to one roller 20; one end of another roller support rod 21 is connected to one connecting rod 25 and one winding machine head, and the connecting rod 25 is connected to one roller 20.

[0107] One end of the connecting rod 25 is connected to the roller support rod 21 through an axle pin, and the other end is sleeved on the shaft of the roller 20.

[0108] During the rotation of the spiral winding device 101, it will not only be subjected to a large radial force, but also a large tangential force tangential to the surface of the drum 20. The drum 20 is connected to the hydraulic cylinder 22 and the connecting rod 25. The connecting rod 25 is connected to the fixed drum support rod 21. The two ends of the hydraulic cylinder 22 are hinged. This tangential force is borne by the connecting rod 25 and transmitted to the drum support rod 21. The hydraulic cylinder 22 is subjected to a small force perpendicular to the hydraulic cylinder 22 to avoid damaging the sealing performance of the hydraulic cylinder 22.

[0109] Through the extension and retraction of the hydraulic cylinder 22 and the interaction between the roller support rod 21 and the connecting rod 25, the roller 20 can be synchronously expanded and retracted, and the outer diameter of the spiral winding device 101 can be adjusted to adapt to the diameter of the pipeline to be repaired.

[0110] The winding head comprises a head frame 19 , a second hydraulic motor 14 , a pressure roller shaft 17 , a matching roller 16 and a second gear set 18 .

[0111] The winding head is an important component of the spiral winding equipment 101. Its main function is to accurately feed the strip profile to facilitate the subsequent laying of the strip.

[0112] The winding head does not need to adapt to and fit the pipe diameter, and can be directly fixed on the central shell 13. The second hydraulic motor 14 installed on the head frame 19 directly drives the matching roller 16 to rotate, and the matching roller 16 is transmitted to the pressure roller shaft 17 through the second gear set 18, thereby realizing the rotation of the pressure roller shaft 17.

[0113] One end of the head frame 19 is fixed on the central housing 13, and the other end is a U-shaped structure. The axis of the pressure roller shaft 17 and the matching roller 16 are rotatably fixed on the two inner side walls of the U-shaped structure, and the matching roller 16 is close to the bottom of the U-shaped structure. Half of the pressure roller shaft 17 is a cylindrical shape with a fixed diameter, and the other half is a cylindrical shape with a groove, and its groove fits with the groove on the surface of the profile. The matching roller 16 is a cylindrical shape with two sections of different diameters, one of which is in close contact with the cylindrical shape of the fixed diameter of the pressure roller shaft 17, and the other section and the cylindrical shape with the groove of the pressure roller shaft 17 tightly squeeze the profile. The pressure roller shaft 17 and the matching roller 16 can both rotate with their axis as the center of the circle, and the profile is extruded when rotating.

[0114] The second hydraulic motor 14 is installed on the outside of one side of the U-shaped structure of the head frame 19, and its output shaft is fixedly connected to the axis of the matching roller 16 to drive the matching roller 16 to rotate. The second gear set 18 is a pair of gears meshing with each other, one gear axis is fixedly connected to the axis of the matching roller 16, and the other gear axis is fixedly connected to the axis of the pressure roller shaft 17.

[0115] like Figure 4 As shown, there is a groove structure on the pressure roller shaft 17 that can cooperate with the repair profile. The repair profile is clamped between the pressure roller shaft 17 and the matching roller 16. The profile is squeezed out through the squeezing and rotation of the two shafts, thereby realizing the profile conveying function.

[0116] like Figure 5As shown, the structure of 4 rollers among the 5 rollers 20 is a stepped roller. The front end of the stepped roller has a tapered structure. The diameter of the front half of the roller is relatively thick, and the diameter of the back half of the roller is relatively thin. The lengths of the two ends of the 4 rollers are not equal. Among the 5 rollers 20, there is an extrusion profile roller B201, which has a special structure. It does not have a tapered structure at the front end. It only has a cylindrical roller head with a relatively thick diameter at one end at the front end. The boundary of the cylinder with a relatively thick diameter is used to prevent the profile from moving forward and backward. The extrusion profile roller B201 is located on one side of the discharging end of the winding machine head. After the winding machine head feeds the material, the roller head of the extrusion profile roller B201 immediately extrude the profile to make the profile mesh. As shown Figure 6 As shown, the changing positions of the diameters of the five rollers form a spiral track, and the repair profile is laid along the spiral track between the inner wall of the pipe and the thin roller.

[0117] The conical structure at the front end of the four stepped rollers has a small front end and a large rear end. During the forward movement of the spiral winding device 101, the front end cone surface first contacts and collapses, and as the device rotates and moves forward, it gradually lifts and collapses. After the winding head feeds the profile, the extrusion profile roller B201 continues to extrude the profile, so that the fed profile meshes with the previous circle of profiles. The rear end details of the following four stepped rollers further extrude the profile, so that the profile meshes, and then it is laid into a pipeline to achieve the collapse working condition.

[0118] The driving force for the overall movement of the integrated pipeline repair device is provided by the first hydraulic motor 11. The first hydraulic motor 11 is fixed on the motor support rod 12. The first gear set 26 drives the shaft of the driving roller 202 hinged to the motor support rod 12 to rotate, and the driving roller 202 is connected to the shaft using a key. The motor support rod 12 is fixed on the central housing 13. The first gear set 26 is a meshing structure of two gears, one of which is driven to rotate by the first hydraulic motor 11, and the axis of the other gear is fixedly connected to the shaft of the driving roller 202. The rotation of the driving roller 202 drives the spiral winding device 101 to rotate. The position of the first hydraulic motor 11 can be changed, and it can also be installed on a roller support rod 21. When the driving force of one hydraulic motor is insufficient, multiple hydraulic motors can also be added.

[0119] like Figure 3 As shown, the spiral winding device 101 also includes a plurality of positioning structures, preferably two. This embodiment uses two positioning structures: a first profile positioning structure 23 and a second profile positioning structure 24, both of which are installed on the central housing 13. Figure 7As shown, the positioning structure includes a positioning bracket 231 and two small rollers 232. The profile passes through the two rollers 232. The positioning structure plans and sets the entry route for the profile before the profile enters the winding head, combs the profile, and assists in repairing the profile feeding. One end of the positioning bracket 231 is fixed to the central shell 13, and the other end is a U-shaped bracket. The roller 232 includes a cylindrical structure and a cylindrical structure with a groove. The axes of the two cylindrical structures are rotatably fixed on the two inner side walls of the U-shaped bracket of the positioning bracket 231. The cylindrical structure with a groove of the roller 232, its groove fits with the groove on the surface of the profile, and the profile is clamped between the two cylindrical structures. When rotating, the profile can be straightened and output.

[0120] In order to prevent the hydraulic pipeline from twisting and entanglement when the pipeline integrated repair device rotates, a hydraulic slip ring 27 is installed at one end of the central shell 13. When designing the integrated oil circuit, considering that the pipeline integrated repair device has a hydraulic motor and multiple hydraulic cylinders, and there are many hydraulic oil pipes, the hydraulic pipeline is integrated and an integrated hydraulic slip ring is used to realize one-in and multiple-outlet oil circuits, thereby ensuring the number of inlet and outlet oil ports, and the hydraulic slip ring 27 has an oil circuit distribution function inside.

[0121] When the spiral winding device 101 is used, the device rotates as a whole, and the strip-shaped profile is spirally bent during the rotation, and the buckles at both ends of the profile are interlocked and pressed and meshed to form a spiral liner. The wound liner is fixed and fits the original pipe wall. When winding, the spiral winding device 101 rotates toward the newly made spiral liner and moves along the spiral route of the strip. The device moves forward along the axis direction by one pitch for each rotation.

[0122] like Figure 8 As shown, one end of the duckbill propping device 102 is rotatably connected to the hydraulic slip ring 27 of the spiral winding device 101 by connecting the hydraulic cylinder 28. The other end of the connecting hydraulic cylinder 28 is fixed to the propping device body 33 of the duckbill propping device 102. A plurality of wheels 34 are installed below the propping device body 33. A vertically installed slider shaft 29 is arranged on the propping device body 33. A slider 37 is arranged at the tail of the propping hydraulic cylinder 30, which is sleeved on the slider shaft 29 and can move up and down along the slider shaft 29. One end of the two duckbill props 31 is a circular arc sheet structure 35, and the other end is a duckbill handle 36. One end of the duckbill handle 36 is hinged to the propping device body 33, and the other end is fixedly connected to the circular arc sheet structure 35. One end of the duckbill connecting rod 32 is hinged to the inner side of the circular arc of the circular arc sheet structure 35, and the other end is hinged to the head of the propping hydraulic cylinder 30.

[0123] The propping hydraulic cylinder 29 can move forward and backward, and the slider 37 allows the duckbill propping device 102 to move up and down when the propped pipe collapses, changing the connection angle of the duckbill prop 31 without affecting the operation of the subsequent spiral winding device 101.

[0124] like Fig. 9 As shown, when the hydraulic cylinder 29 is not working, the two duckbill supporters 31 cause the slider 37 to be located at the bottom of the slider shaft 29 due to gravity. Fig.10 As shown, when the duckbill supporter 31 is propped up, the duckbill supporter 31 at the bottom contacts the bottom of the pipe, providing overall support for the propping hydraulic cylinder 29, and the slider 37 automatically slides upward along the slider shaft 29. Through the interaction between the mechanical parts, the up and down movement of the propping device is realized, the collapsed part of the pipeline is pre-propped up, and the roundness of the pipeline is ensured.

[0125] like Fig.11 As shown, the pipeline integrated repair device 5 is used in an underground pipeline 6 with wellheads at the front and rear. The profile 3 is transported from the winder 1 on the ground through the rear wellhead 8 from the rear of the pipeline integrated repair device 5. The pipeline integrated repair device 5 moves along the pipeline, lifts up the collapsed part of the pipeline and lays out the spiral liner 7. The hydraulic oil pipe 4 of the hydraulic drive element transports hydraulic oil from the ground hydraulic pump station 2 through the front wellhead 9 through the hydraulic slip ring 27 of the pipeline integrated repair device 5, thereby avoiding entanglement interference between the profile 3 and the hydraulic oil pipe 4.

[0126] Before the pipeline integrated repair device 5 enters the pipeline, the hydraulic cylinder 22 is in a contracted state, and the overall size is smaller than the inner diameter of the pipeline, so it is easy to enter the pipeline.

[0127] Before the integrated pipeline repair device 5 starts to wind the pipeline, it is necessary to manually install the repair profile on the winding machine head and manually assist the device to perform initial winding. After the first few turns of the repair profile are spiraled and meshed to form an inner liner, it is fixed to the pipeline mouth and the equipment will work automatically and continuously.

[0128] The specific construction steps are as follows: manually pass the strip profile through the first profile positioning structure 23 and the second profile positioning structure 24 in sequence, the first profile positioning structure 23 and the second profile positioning structure 24 perform preliminary bending of the profile in the middle gap of the device, and manually squeeze the profile through the pressure roller shaft 17 and the matching roller 16 at the winding head. After the repair profile is manually installed on the winding head, the pressure roller shaft 17 at the winding head has a groove structure that can match the repair profile, and the repair profile is clamped between the pressure roller shaft 17 and the matching roller 16. The second hydraulic motor 14 at the winding head rotates to drive the pressure roller shaft 17 and the matching roller 16 to rotate, and then feed the profile, the pipeline integrated repair device initially enters the pipeline, the hydraulic cylinder 22 extends, the roller support rod 21 and the connecting rod 25 interact with each other, the roller 20 connected to the hydraulic cylinder 22 and the connecting rod 25 is stretched open, the front end coarse roller is attached to the pipe wall and applies a certain supporting force to the pipe wall, and the rear end fine roller presses the profile.

[0129] The connecting hydraulic cylinder 28 is extended, and the duckbill propping device 102 moves forward. When the connecting hydraulic cylinder 28 is extended to the limit, the first hydraulic motor 11 drives the driving roller 202 to rotate, and drives the spiral winding device 101 to rotate as a whole to perform winding work. Relying on the spiral path during the meshing and fixing process of the profile, the forward displacement of the device is a profile width for each winding, which is similar to twisting a bottle cap. The bottle cap can also produce an upward displacement by just twisting it. While the spiral winding device 101 is moving forward in a spiral, the connecting hydraulic cylinder 28 is contracted to keep the duckbill propping device 102 in place until the connecting hydraulic cylinder 28 is contracted to the limit. Then the connecting hydraulic cylinder 28 is extended again, and this reciprocating process is repeated, so that the pipeline integrated repair device moves forward along the pipeline in a pulsed manner.

[0130] When a collapse occurs in the pipeline, the hydraulic cylinder 30 of the duckbill propping device 102 extends to prop up the two duckbill propping devices 31, and the arc sheet structure 35 of the duckbill propping device 31 props up the collapsed part of the pipeline to restore the inner wall of the pipeline to a circular shape. The spiral winding device 101 can more conveniently lay the liner pipe on the basis of the duckbill propping device 102 pre-lifting the collapsed pipeline. When the spiral winding device 101 rotates forward, the duckbill propping device 102 does not rotate with the rotation of the spiral winding device 101 because the connecting hydraulic cylinder 28 and the hydraulic slip ring 27 are rotatably connected together.

[0131] After the pipeline integrated repair device 5 wraps around the entire pipeline, it comes out from the next wellhead, cuts and truncates the repair profile, realizes the repair and renewal of the entire pipeline, and finally completes the work.

[0132] The winding of the repair profile to form the liner pipe requires the front and rear circles of the profile to lock and mesh, and the profile position accuracy is relatively high. Therefore, when the winding starts, the position of the first circle of the profile cannot be fixed, and manual assistance is required to spirally lay the profile on the inner wall of the pipe, adjust and fix the position of the first circle of the profile, so that the second circle of the profile lock can mesh with the first circle of the profile lock, and fix the initially wound liner pipe and the pipe mouth of the original pipe together to ensure that the formed liner pipe does not rotate with the winding equipment.

[0133] The changing positions of the diameters of the five rollers of the spiral winding equipment form a spiral track. The profile fed by the winding head is laid along the spiral track between the inner wall of the pipe and the thin roller. The end of the profile is locked and meshed, and the front end is constrained by the coarse roller. Therefore, the position of the profile is fixed and does not move, and the device can accurately position the profile. The first hydraulic motor 11 drives the device to rotate as a whole, and the extrusion profile roller B201 that rotates along the pipe wall extrude the profile fed by the winding head, so that the profile is locked and meshed to form a pipe. During operation, the rotation speed of the second hydraulic motor 14 and the first hydraulic motor 11 must satisfy the speed of feeding the profile and the speed of repairing the profile.

[0134] At the position where the pipeline is deformed and collapsed, the duckbill propping device 102 will first prop up the collapsed area. After the duckbill propping device 102 passes, the collapsed area will partially collapse again, making the diameter of the pipeline smaller. Since the front end of the four stepped rollers of the spiral winding device 5 has a conical structure, the front end size is small and the rear end size is large, during the forward movement of the winding device, the front end cone surface first contacts the collapse, and as the device rotates and moves forward, the collapse is gradually lifted up. The coarse roller and the pipe wall fit the pipe wall to further shape and round the collapsed position. The position where the winding head feeds the profile is located on the stepped spiral line of the roller. When feeding the profile, the collapsed position is already supported by the front end cone structure and the coarse roller. The winding device performs the winding work normally, winding the inner liner pipe that fits the original pipe wall to the deformed collapsed part. After the device moves forward and leaves the deformed collapsed position, the deformed collapsed part is supported by the new inner liner pipe and will not return to the deformed state.

[0135] The above-described device and method can be used for various repair profiles with different structures. When the pipeline is deformed and collapsed, it is necessary to strengthen the strength of the original pipeline. The required repair profile has high strength, and plastic steel repair profiles can be used. Fig.12 As shown, due to the hard texture of the profile, it is usually necessary to wind it on a winder to a diameter smaller than the required liner pipe diameter at the beginning, and then transport it from the wellhead to the pipeline with a smaller spiral diameter, and then the winding device uses a hydraulic cylinder to push it open and fit it on the inner wall of the pipeline.

[0136] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that any modification or equivalent replacement of the technical solutions of the present invention does not depart from the spirit and scope of the technical solutions of the present invention and should be included in the scope of the claims of the present invention.

Claims

1. A pipeline repair device for a matching profile, characterized in that: The device comprises a spiral winding device (101) and a duckbill propping device (102); wherein: The spiral winding device (101) is used to spirally wind the profile on the inner wall of the pipe to form an inner liner pipe; The spiral winding device (101) comprises: a support system, a power system, a profile feeding system and a pipe wall supporting system; wherein: The support system is located at the center of the spiral winding device (101), and the power system, the feeding profile system and the pipe wall supporting system are fixed around the support system; The power system is used to drive the spiral winding device (101) to rotate as a whole; The profile feeding system is used to feed the profile during the rotation of the spiral winding device (101), and to press the profile spirally against the inner wall of the pipe so that each circle of the profile meshes to form an inner liner pipe; The feeding profile system includes a winding head and a positioning structure; wherein, The winding machine head is used to feed the profile; The positioning structure is used to straighten the profile during the feeding process of the profile and smoothly input the profile into the winding machine head; The pipe wall support system is used to lift up the collapsed part of the pipe to restore the cross section of the inner wall of the pipe to a circular shape; The duckbill propping device (102) is rotatably connected to the spiral winding device (101) and is used to prop up the collapsed area of ​​the pipeline; The duckbill propping device (102) comprises a driving system and a propping system; wherein: A driving system, used for driving the duckbill supporting device (102) to move along the pipeline axis; A propping system to prop up collapsed areas of the pipe; The support system comprises a cylindrical central shell (13); A plurality of groups of roller support rods (21) are fixed to the outer side of the cylindrical surface of the central shell (13); each group of roller support rods (21) comprises a plurality of roller support rods (21) evenly distributed along a radial cross section of the outer side of the cylindrical surface; A plurality of retractable hydraulic cylinders (22) are hingedly connected to the middle portion of the outer side of the cylindrical surface of the central housing (13); the plurality of hydraulic cylinders (22) are evenly distributed along the radial cross section of the outer side of the cylindrical surface; A hydraulic slip ring (27) is provided at one end of the central housing (13); the hydraulic slip ring (27) is used to connect a hydraulic pipe to supply oil to a hydraulic motor and a hydraulic cylinder; The power system comprises a first hydraulic motor (11), a motor support rod (12) and a first gear set (26); wherein: One end of the motor support rod (12) is fixedly connected to an end of the central housing (13) opposite to the hydraulic slip ring (27), and the other end is fixed to the first hydraulic motor (11); The first gear set (26) is two gears meshing with each other, wherein the shaft of one gear is fixedly connected to the output shaft of the first hydraulic motor (11), and the shaft of the other gear is fixedly connected to the shaft of a roller A (20); a plurality of the positioning structures are fixed to the outer side of the cylindrical surface of the central housing (13) along the profile feeding path; The positioning structure comprises a positioning bracket (231) and two rollers (232); One end of the positioning bracket (231) is fixed to the outside of the cylindrical surface of the central housing (13), and the other end is a U-shaped bracket; The roller (232) comprises a cylindrical structure and a cylindrical structure with a groove matching the surface shape of the profile, and the shafts of the two cylindrical structures are rotatably fixed on the two inner side walls of the U-shaped bracket of the positioning bracket (231); The driving system comprises a connecting hydraulic cylinder (28) rotatably connected to the spiral winding device (101); One end of the connecting hydraulic cylinder (28) is fixedly connected to the supporting device body (33); A plurality of wheels (34) are installed below the supporting device body (33); The propping system comprises a propping hydraulic cylinder (30); A sliding block (37) is provided at the rear of the supporting hydraulic cylinder (30); The supporting device body (33) is provided with a vertically mounted slider shaft (29); The slider (37) is sleeved on the slider shaft (29) and can move up and down along the slider shaft (29); Two duckbill supporters (31); the duckbill supporters (31) comprise a circular arc sheet structure (35) and a duckbill handle (36); one end of the duckbill supporter (31) is the circular arc sheet structure (35), and the other end is the duckbill handle (36); One end of the duckbill handle (36) is hinged to the supporting device body (33), and the other end is fixedly connected to the arc sheet structure (35); The inner side of the circular arc of the circular arc sheet structure (35) is hinged to one end of the duckbill connecting rod (32), and the other end of the duckbill connecting rod (32) is hinged to the head of the supporting hydraulic cylinder (30); The pipe wall supporting system comprises a plurality of rollers A (20); the structure of the rollers A (20) is a cylindrical structure with steps; the front end of the rollers A (20) is a conical structure, the conical structure extends backward to form a cylindrical structure with the same diameter as the bottom surface of the conical structure, and then extends backward to form a cylindrical structure with a thinner diameter; The axis of the roller A (20) is hinged to a plurality of connecting rods (25), and the other end of the connecting rod (25) is hinged to the roller support rod (21); The axis at the middle position of the roller A (20) is hinged to the hydraulic cylinder (22).

2. The pipeline repair device with matching profile according to claim 1, characterized in that: The profile feeding system further comprises a profile extrusion roller B (201); The profile extrusion roller B (201) is used to extrude the profile output by the winding machine head toward the inner wall of the pipe, so that each circle of the profile meshes with each other.

3. The pipeline repair device with matching profile according to claim 2, characterized in that: A plurality of rollers A (20) and one extrusion profile roller B (201) are evenly distributed around the cylindrical side surface of the central housing (13); One end of a relatively thin cylindrical structure of one of the plurality of rollers A (20) is connected to a power system and is driven to rotate by the power system.

4. The pipeline repair device with matching profile according to claim 3, characterized in that: The dividing points of two cylindrical structures with different diameters on the plurality of rollers A (20) and the extruded profile roller B (201) are connected to form a spiral line.

5. The pipeline repair device with matching profile according to claim 1, characterized in that: The winding machine head comprises a second hydraulic motor (14), a machine head frame (19), a pressure roller shaft (17), a matching roller (16) and a second gear set (18); One end of the machine head frame (19) is fixed to the outer side of the cylindrical surface of the central housing (13), and the other end is a U-shaped structure; The second hydraulic motor (14) is fixed to the outside of the U-shaped structure of the machine head frame (19); the output shaft of the second hydraulic motor (14) is fixedly connected to the axis of the matching roller (16); The second gear set (18) is a pair of gears meshing with each other, wherein the axis of one gear is fixedly connected to the axis of the matching roller (16), and the axis of the other gear is fixedly connected to the axis of the pressure roller shaft (17); The pressing roller shaft (17) is a cylindrical structure with two sections having different structures, one section being a cylindrical structure with a fixed diameter, and the other section being a cylindrical structure with a groove that matches the surface shape of the profile; The matching roller (16) is a cylindrical structure with two sections of different diameters, wherein one section of the cylindrical structure is in close contact with a cylindrical structure of a fixed diameter of the pressing roller shaft (17), and the other section of the cylindrical structure and a cylindrical structure with a groove of the pressing roller shaft (17) together closely squeeze the profile; The axis of the cylindrical structure of the pressing roller shaft (17) and the matching roller (16) can be rotatably fixed to the two inner side walls of the U-shaped structure of the machine head frame (19).

6. The pipeline repair device with matching profile according to claim 2, characterized in that: The extruded profile roller B (201) is located at the exit side of the winding machine head for feeding the profile; The main body of the extrusion profile roller B (201) is a cylindrical structure, and the head is a cylindrical structure with a diameter thicker than the main body; The axis of the extruded profile roller B (201) is hinged to a plurality of connecting rods (25), and the other end of the connecting rod (25) is hinged to the roller support rod (21); The axis center in the middle of the extrusion profile roller B (201) is hinged to the hydraulic cylinder (22).

7. A pipeline repair device for a matching profile, characterized in that: The device comprises a spiral winding device (101) and a duckbill propping device (102); wherein: The spiral winding device (101) is used to spirally wind the profile on the inner wall of the pipe to form an inner liner pipe; The spiral winding device (101) comprises: a support system, a power system, a profile feeding system and a pipe wall supporting system; wherein: The support system is located at the center of the spiral winding device (101), and the power system, the feeding profile system and the pipe wall supporting system are fixed around the support system; The power system is used to drive the spiral winding device (101) to rotate as a whole; The profile feeding system is used to feed the profile during the rotation of the spiral winding device (101), and to press the profile spirally against the inner wall of the pipe so that each circle of the profile meshes to form an inner liner pipe; The profile feeding system comprises a winding head, a positioning structure and an extrusion profile roller B (201); wherein, The winding machine head is used to feed the profile; The positioning structure is used to straighten the profile during the feeding process of the profile and smoothly input the profile into the winding machine head; The extrusion profile roller B (201) is used to extrude the profile output by the winding machine head toward the inner wall of the pipe so that each circle of the profile meshes with each other; The pipe wall support system is used to lift up the collapsed part of the pipe to restore the cross section of the inner wall of the pipe to a circular shape; The duckbill propping device (102) is rotatably connected to the spiral winding device (101) and is used to prop up the collapsed area of ​​the pipeline; The duckbill propping device (102) comprises a driving system and a propping system; wherein: A driving system, used for driving the duckbill supporting device (102) to move along the pipeline axis; A propping system to prop up collapsed areas of the pipe; The support system comprises a cylindrical central shell (13); A plurality of groups of roller support rods (21) are fixed to the outer side of the cylindrical surface of the central shell (13); each group of roller support rods (21) comprises a plurality of roller support rods (21) evenly distributed along a radial cross section of the outer side of the cylindrical surface; A plurality of retractable hydraulic cylinders (22) are hingedly connected to the middle portion of the outer side of the cylindrical surface of the central housing (13); the plurality of hydraulic cylinders (22) are evenly distributed along the radial cross section of the outer side of the cylindrical surface; A hydraulic slip ring (27) is provided at one end of the central housing (13); the hydraulic slip ring (27) is used to connect a hydraulic pipe to supply oil to a hydraulic motor and a hydraulic cylinder; The power system comprises a first hydraulic motor (11), a motor support rod (12) and a first gear set (26); wherein: One end of the motor support rod (12) is fixedly connected to an end of the central housing (13) opposite to the hydraulic slip ring (27), and the other end is fixed to the first hydraulic motor (11); The first gear set (26) is two gears meshing with each other, wherein the shaft of one gear is fixedly connected to the output shaft of the first hydraulic motor (11), and the shaft of the other gear is fixedly connected to the shaft of a drum A (20); The extruded profile roller B (201) is located at the exit side of the winding machine head for feeding the profile; The main body of the extrusion profile roller B (201) is a cylindrical structure, and the head is a cylindrical structure with a diameter thicker than the main body; The axis of the extruded profile roller B (201) is hinged to a plurality of connecting rods (25), and the other end of the connecting rod (25) is hinged to the roller support rod (21); The axis center in the middle of the extrusion profile roller B (201) is hinged to the hydraulic cylinder (22); The driving system comprises a connecting hydraulic cylinder (28) rotatably connected to the spiral winding device (101); One end of the connecting hydraulic cylinder (28) is fixedly connected to the supporting device body (33); A plurality of wheels (34) are installed below the supporting device body (33); The propping system comprises a propping hydraulic cylinder (30); A sliding block (37) is provided at the rear of the supporting hydraulic cylinder (30); The supporting device body (33) is provided with a vertically mounted slider shaft (29); The slider (37) is sleeved on the slider shaft (29) and can move up and down along the slider shaft (29); Two duckbill supporters (31); the duckbill supporters (31) comprise a circular arc sheet structure (35) and a duckbill handle (36); one end of the duckbill supporter (31) is the circular arc sheet structure (35), and the other end is the duckbill handle (36); One end of the duckbill handle (36) is hinged to the supporting device body (33), and the other end is fixedly connected to the arc sheet structure (35); The inner side of the circular arc of the circular arc sheet structure (35) is hinged to one end of the duckbill connecting rod (32), and the other end of the duckbill connecting rod (32) is hinged to the head of the supporting hydraulic cylinder (30); The pipe wall supporting system comprises a plurality of rollers A (20); the structure of the rollers A (20) is a cylindrical structure with steps; the front end of the rollers A (20) is a conical structure, the conical structure extends backward to form a cylindrical structure with the same diameter as the bottom surface of the conical structure, and then extends backward to form a cylindrical structure with a thinner diameter; The axis of the roller A (20) is hinged to a plurality of connecting rods (25), and the other end of the connecting rod (25) is hinged to the roller support rod (21); The axis at the middle position of the roller A (20) is hinged to the hydraulic cylinder (22).

8. The pipeline repair device with matching profile according to claim 7, characterized in that: A plurality of rollers A (20) and one extrusion profile roller B (201) are evenly distributed around the cylindrical side surface of the central housing (13); One end of a relatively thin cylindrical structure of one of the plurality of rollers A (20) is connected to a power system and is driven to rotate by the power system.

9. The pipeline repair device with matching profile according to claim 8, characterized in that: The dividing points of two cylindrical structures with different diameters on the plurality of rollers A (20) and the extruded profile roller B (201) are connected to form a spiral line.

10. The pipeline repair device with matching profile according to claim 7, characterized in that: The winding machine head comprises a second hydraulic motor (14), a machine head frame (19), a pressure roller shaft (17), a matching roller (16) and a second gear set (18); One end of the machine head frame (19) is fixed to the outer side of the cylindrical surface of the central housing (13), and the other end is a U-shaped structure; The second hydraulic motor (14) is fixed to the outside of the U-shaped structure of the machine head frame (19); the output shaft of the second hydraulic motor (14) is fixedly connected to the axis of the matching roller (16); The second gear set (18) is a pair of gears meshing with each other, wherein the axis of one gear is fixedly connected to the axis of the matching roller (16), and the axis of the other gear is fixedly connected to the axis of the pressure roller shaft (17); The pressing roller shaft (17) is a cylindrical structure with two sections having different structures, one section being a cylindrical structure with a fixed diameter, and the other section being a cylindrical structure with a groove that matches the surface shape of the profile; The matching roller (16) is a cylindrical structure with two sections of different diameters, wherein one section of the cylindrical structure is in close contact with a cylindrical structure of a fixed diameter of the pressing roller shaft (17), and the other section of the cylindrical structure and a cylindrical structure with a groove of the pressing roller shaft (17) together closely squeeze the profile; The axis of the cylindrical structure of the pressing roller shaft (17) and the matching roller (16) can be rotatably fixed to the two inner side walls of the U-shaped structure of the machine head frame (19).

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