A steel track for pipeline girth weld inspection

Abstract

The utility model relates to pipeline weld joint detection technical field proposes a kind of steel belt track for pipeline annular weld joint detection, including rail belt and connecting mechanism, wherein, the two ends of the rail belt are in contact and close, and are enclosed into circular ring structure;The connecting mechanism includes abutting block, fixed block, pull rod and fastening rod, and the abutting block and the fixed block are respectively fixedly arranged at the two ends of the rail belt;The pull rod is rotationally arranged on the fixed block;The fastening rod is connected on the pull rod by thread cooperation, and is in abutment with the side of the abutting block away from the fixed block.This utility model is by setting abutting block, fixed block, pull rod and fastening rod, using the abutment of fastening rod and abutting block, can make the two ends of rail belt contact and close alignment, not only can improve the installation efficiency of this steel belt track, but also can make this steel belt track provide continuous moving track for weld joint detection device, to improve the detection efficiency of pipeline annular weld joint.

Description

Technical Field

[0001] This utility model relates to the field of pipeline weld inspection technology, and in particular to a steel strip track for inspecting pipeline circumferential welds. Background Technology

[0002] In industries such as oil, natural gas, and chemicals, pipelines serve as the primary means of material transport, and their safety and reliability are of paramount importance. Pipeline systems are typically constructed by welding long sections of steel pipe together to form a continuous material transport channel. At the circumferential weld, defects such as cracks, slag inclusions, and incomplete fusion can easily occur. These defects directly affect the overall strength and sealing performance of the pipeline, and in severe cases, may lead to material leakage or even safety accidents. Therefore, the inspection of pipeline circumferential welds is essential.

[0003] To improve the efficiency and accuracy of pipeline circumferential weld inspection while reducing inspection costs, automated inspection equipment for pipeline circumferential welds has emerged. For example, the pipeline inspection system disclosed in invention patent CN111413407B includes a strip track, a traveling mechanism, an X-ray machine, a detector, and an ultrasonic flaw detector. The traveling mechanism moves along the strip track to drive the relevant inspection components to inspect the pipeline circumferential welds.

[0004] The strip track in the above technical solution includes a straight-edge track, a steel strip joint, a connecting mechanism, and a shim steel strip. However, the way the steel strip joint and the connecting mechanism are set up will cause the two ends of the straight-edge track to be misaligned, making it difficult for the traveling mechanism to quickly pass through the end position of the straight-edge track, which will affect the inspection efficiency of the weld and the accuracy of the welding inspection results. Utility Model Content

[0005] In view of this, the present invention proposes a steel strip track for inspecting pipe annular welds, which enables rapid docking of the two ends of the track and improves the inspection efficiency of pipe annular welds.

[0006] The technical solution of this utility model is achieved as follows: This utility model provides a steel strip track for inspecting pipe annular welds, including a track and a connecting mechanism, wherein...

[0007] The two ends of the track abut against each other, forming a circular structure;

[0008] The connecting mechanism includes a supporting block, a fixing block, a pull rod, and a fastening rod. The supporting block and the fixing block are respectively fixedly disposed at both ends of the track. The pull rod is rotatably disposed on the fixing block. The fastening rod is threadedly connected to the pull rod and abuts against the side of the supporting block away from the fixing block.

[0009] Based on the above technical solutions, preferably, a pad is also included, which is fixedly disposed at one end of the track and abuts against the other end thereto.

[0010] More preferably, the pad is disposed on the inner side of the track.

[0011] More preferably, it also includes a plurality of pressure blocks, which are respectively fixedly disposed on the inner side of the track and the inner side of the pad.

[0012] More preferably, the length direction of the pressure block connected to the track is parallel to the width direction of the track;

[0013] The length direction of the pressure block connected to the pad is parallel to the length direction of the track.

[0014] Based on the above technical solutions, preferably, a fastening groove is provided on the side of the supporting block away from the fixing block, and the end of the fastening rod is located in the fastening groove.

[0015] More preferably, the pull rod has a sliding groove, and the abutment block includes a fixing part and a through part, wherein,

[0016] The fixing part is fixedly installed on the inner side of the rail belt by bolts, and the pad is abutted between the fixing part and the rail belt;

[0017] The through-part is fixedly disposed on the fixed part, and its outer diameter is smaller than that of the fixed part. The through-part passes through the pad and the track. The through-part is slidably disposed in the groove, and the fastening rod abuts against the through-part.

[0018] More preferably, the connecting mechanism further includes a reinforcing block, which is fixedly mounted on the fixing block by bolts, and the track belt is abutted between the reinforcing block and the fixing block;

[0019] The pad has a limiting groove at the end away from the supporting block, and the reinforcing block is slidably disposed in the limiting groove.

[0020] More preferably, the pressure block is made of a flexible material.

[0021] Based on the above technical solutions, preferably, the track belt has multiple toothed grooves.

[0022] The steel strip track for inspecting pipe circumferential welds of this utility model has the following advantages over the prior art:

[0023] (1) By setting up abutment blocks, fixing blocks, tie rods and fastening rods, the two ends of the rail can be aligned by the abutment of the fastening rods and abutment blocks. This not only improves the installation efficiency of the steel strip rail, but also allows the steel strip rail to provide a continuous moving trajectory for the weld inspection device, thereby improving the inspection efficiency of the pipe circumferential weld.

[0024] (2) By setting the abutment block to include a fixed part and a through part, the fixing firmness of the abutment block can be strengthened. By setting the reinforcement block, the fixing firmness of the fixed block can be improved. By setting the pressure block made of flexible material, the pressure block can be prevented from scratching the outer wall of the pipe to be tested, thus achieving a good protective effect. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a perspective view of a steel strip track for inspecting circumferential welds in pipelines according to this utility model.

[0027] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0028] Figure 3 This is a cross-sectional view of the connecting mechanism in a steel strip track for inspecting pipe annular welds according to this utility model.

[0029] Figure 4 This is a perspective view of the tie rod in a steel strip track for inspecting pipe annular welds according to this utility model.

[0030] Figure 5 This is a perspective view of the abutment block in a steel strip track for inspecting pipe annular welds according to this utility model.

[0031] Figure 6 This is a perspective view of a support block in a steel strip track for inspecting circumferential welds in pipelines, according to this utility model.

[0032] Among them: 1. Track; 101. Toothed groove; 2. Connecting mechanism; 21. Support block; 22. Fixing block; 23. Pull rod; 24. Fastening rod; 25. Reinforcing block; 211. Fixing part; 212. Through part; 201. Fastening groove; 202. Sliding groove; 3. Pad plate; 301. Limiting groove; 4. Pressure block. Detailed Implementation

[0033] The technical solutions of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] Example 1

[0035] This utility model discloses a steel strip track for inspecting circumferential welds in pipelines, comprising a track 1, a connecting mechanism 2, a pad 3, and a pressure block 4. It is used to fit around the outside of the pipeline to be inspected and is located at the circumferential weld position of the pipeline. The weld inspection device can rotate and move on the steel strip track, thereby realizing the inspection of the circumferential weld by the weld inspection device.

[0036] The pipe to be tested has a circular tubular installation structure. After the rail belt 1 is fitted onto the pipe, the rail belt 1 is bent into a circular ring shape. Then, the two ends of the rail belt 1 are connected using the connecting mechanism 2, thus fixing the rail belt 1 to the pipe to be tested. Figure 1 As shown, the two ends of the fixed rail 1 abut against each other, so that the track at both ends of the rail 1 is continuous, which allows the weld inspection device to move smoothly, thereby improving the inspection efficiency of the pipe circumferential weld.

[0037] The connecting mechanism 2 includes a supporting block 21, a fixing block 22, a pull rod 23, a fastening rod 24, and a reinforcing block 25, such as Figure 5 As shown, the abutment block 21 is fixedly installed at one end of the track belt 1, as... Figure 4 As shown, the fixing block 22 is fixedly mounted on the other end of the track belt 1, the pull rod 23 is rotatably mounted on the fixing block 22, and the fastening rod 24 is threadedly connected to the pull rod 23. When the fastening rod 24 is rotated, it can be moved along its axial direction, such as... Figure 2 As shown, after the track belt 1 is placed on the pipe to be tested, the end of the fastening rod 24 can be made to abut against the side of the abutment block 21 away from the fixing block 22 by rotating the fastening rod 24, thereby tightening both ends of the track belt 1 and making the two ends of the track belt 1 abut against each other, thus achieving rapid fixation of the track belt 1 and the pipe to be tested.

[0038] The pad 3 is used to maintain the flatness of the connection between the two ends of the rail belt 1. The pad 3 is fixedly installed at one end of the rail belt 1 and abuts against its other end; for example Figure 5 As shown, it is preferable to fix the pad 3 on one end of the mounting block 21 on the rail 1. When connecting the two ends of the rail 1, the pad 3 is made to abut against one end of the mounting block 22 on the rail 1, so that the two ends of the rail 1 are flush. The pad 3 is preferably arc-shaped.

[0039] like Figure 5As shown, the pad 3 is preferably disposed on the inner side of the rail belt 1, that is, one end of the pad 3 is fixedly disposed on the inner side of one end of the rail belt 1, and the other end of the pad 3 is abutted against the inner side of the other end of the rail belt 1, thereby improving its limiting effect and avoiding obstructing the installation of the connecting mechanism 2.

[0040] The pressure block 4 is used to keep the rail belt 1 at a certain distance from the pipe to be tested, so that the walking mechanism of the weld detection device can cooperate with the annular side of the rail belt 1 to drive the weld detection device to move. For example, a drive wheel can be set on the weld detection device, and the drive wheel can be rolled and connected to the annular side of the rail belt 1. When the drive wheel rotates, it can drive the weld detection device to move on the rail belt 1.

[0041] To ensure a uniform spacing between the track belt 1 and the pipe being tested, multiple pressure blocks 4 should be installed, such as... Figure 1 As shown, multiple pressure blocks 4 are fixedly installed on the inner side of the track belt 1 and the inner side of the pad 3, and abut against the outer side of the pipe to be tested.

[0042] The pressure block 4 should be made of flexible materials such as rubber and silicone. The pressure block 4 is in contact with the anti-corrosion layer of the outer wall of the pipe. The pressure block 4 made of flexible material will not cause damage or scratches to the anti-corrosion layer of the pipe under test. It not only plays a good protective role, but also reduces the subsequent repair work caused by damage to the anti-corrosion layer.

[0043] like Figure 5 As shown, the length direction of the pressure block 4 connected to the rail belt 1 is parallel to the width direction of the rail belt 1, which can provide good support for the pipe to be tested and the rail belt 1; while the length direction of the pressure block 4 connected to the pad 3 is parallel to the length direction of the rail belt 1 and perpendicular to the width direction of the rail belt 1, which can better support the pad 3 and strengthen the structural strength of the pad 3.

[0044] like Figure 6 As shown, a fastening groove 201 is provided on the side of the abutment block 21 away from the fixing block 22, such as... Figure 2 As shown, when installing this steel strip track, the end of the fastening rod 24 is located in the fastening groove 201, thereby avoiding the problem of the holding block 21 separating from the fastening rod 24 when the fastening rod 24 is rotated. This not only improves the installation convenience of the steel strip track, but also provides a certain protective effect.

[0045] like Figure 6 As shown, the abutment block 21 includes a fixing part 211 and a through part 212. The through part 212 is fixedly disposed on the fixing part 211. The outer diameter of the through part 212 is smaller than the outer diameter of the fixing part 211. The two are combined to form an inverted T-shaped structure. The fastening groove 201 is located on the through part 212. The fastening rod 24 abuts against the fastening groove 201 on the through part 212.

[0046] like Figure 5As shown, the fixing part 211 is fixedly installed on the inner side of the rail 1 by bolts, the pad 3 is abutted between the fixing part 211 and the rail 1, and the through part 212 passes through the pad 3 and the rail 1. Of course, the bolt between the fixing part 211 and the rail 1 preferably passes through the pad 3 to enhance its fixing firmness.

[0047] like Figure 2 and Figure 4 As shown, the pull rod 23 is provided with a groove 202, and the through part 212 is slidably disposed in the groove 202. By utilizing the sliding cooperation between the two, the alignment of the two ends of the track 1 can be further improved, and the operation convenience and stability of the connection between the two ends of the track 1 can be enhanced.

[0048] The reinforcing block 25 is used to enhance the fixing firmness of the fixing block 22. The reinforcing block 25 is fixed on the fixing block 22 by bolts. The rail belt 1 is abutted between the reinforcing block 25 and the fixing block 22, and the bolt between the reinforcing block 25 and the fixing block 22 passes through the rail belt 1.

[0049] like Figure 5 As shown, a limiting groove 301 is provided at the end of the pad 3 away from the supporting block 21. When the two ends of the rail belt 1 are connected, the reinforcing block 25 is slidably set in the limiting groove 301. With the sliding of the through part 212 in the sliding groove 202, the alignment of the two ends of the rail belt 1 is further improved, and the operation convenience and stability of the connection of the two ends of the rail belt 1 are enhanced.

[0050] Example 2

[0051] Unlike Example 1, as Figure 1 , Figure 2 and Figure 5 As shown, multiple toothed grooves 101 are formed on the annular side of the track belt 1, and these grooves 101 are arranged consecutively. In this case, the drive wheel of the weld inspection device can be replaced with a gear, which meshes with the toothed grooves 101. When the gear rotates, the meshing between the gear and the toothed grooves 101 drives the weld inspection device to move. Compared to a method without toothed grooves 101, this method avoids slippage between the weld inspection device and the track belt 1, improving the stability of the weld inspection device's movement and the accuracy of the inspection results.

[0052] like Figure 2 As shown, after the two ends of the rail 1 are joined, the toothed grooves 101 at both ends of the rail 1 are also continuously set, so that the weld inspection device can pass smoothly through the joint position at both ends of the rail 1, ensuring the smooth progress of the inspection operation of the circumferential weld to be tested.

[0053] The method of using the steel strip track for inspecting pipe circumferential welds according to this utility model is as follows:

[0054] First, place the rail 1 on the weld position of the pipe to be tested. Then, bend the rail 1 into a ring shape and let the end of the rail 1 away from the abutment block 21 abut against the pad 3. Let the through part 212 extend into the slide groove 202 and let the reinforcing block 25 slide into the limiting groove 301. Finally, rotate the fastening rod 24 and use its front end to abut against the fastening groove 201 until the two ends of the rail 1 are aligned.

[0055] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steel track for pipeline girth weld inspection, characterized by: Includes a track (1) and a connecting mechanism (2), wherein, The two ends of the track (1) abut against each other to form a circular structure; The connecting mechanism (2) includes a support block (21), a fixing block (22), a pull rod (23), and a fastening rod (24). The support block (21) and the fixing block (22) are respectively fixed at both ends of the track (1). The pull rod (23) is rotatably mounted on the fixing block (22). The fastening rod (24) is threadedly connected to the pull rod (23) and abuts against the side of the support block (21) away from the fixing block (22).

2. The steel strip track for inspecting circumferential welds of pipelines as described in claim 1, characterized in that: It also includes a pad (3), which is fixedly disposed at one end of the track (1) and abuts against the other end thereto.

3. The steel strip track for inspecting circumferential welds of pipelines as described in claim 2, characterized in that: The pad (3) is disposed on the inner side of the track (1).

4. The steel strip track for inspecting circumferential welds of pipelines as described in claim 3, characterized in that: It also includes multiple pressure blocks (4), which are respectively fixedly disposed on the inner side of the track (1) and the inner side of the pad (3).

5. A steel strip track for inspecting circumferential welds in pipelines as described in claim 4, characterized in that: The length direction of the pressure block (4) connected to the track (1) is parallel to the width direction of the track (1); The length direction of the pressure block (4) connected to the pad (3) is parallel to the length direction of the track (1).

6. The steel strip track for inspecting circumferential welds of pipelines as described in claim 1, characterized in that: The abutment block (21) has a fastening groove (201) on the side away from the fixing block (22), and the end of the fastening rod (24) is located in the fastening groove (201).

7. A steel strip track for inspecting circumferential welds in pipelines as described in claim 2, characterized in that: The pull rod (23) is provided with a sliding groove (202), and the abutment block (21) includes a fixing part (211) and a through part (212), wherein, The fixing part (211) is fixedly installed on the inner side of the rail (1) by bolts, and the pad (3) is abutted between the fixing part (211) and the rail (1); The through part (212) is fixedly disposed on the fixed part (211), and its outer diameter is smaller than that of the fixed part (211). The through part (212) passes through the pad (3) and the track (1). The through part (212) is slidably disposed in the groove (202), and the fastening rod (24) abuts against the through part (212).

8. The steel strip track for inspecting circumferential welds of pipelines as described in claim 2, characterized in that: The connecting mechanism (2) further includes a reinforcing block (25), which is fixedly mounted on the fixing block (22) by bolts, and the track (1) is abutted between the reinforcing block (25) and the fixing block (22); The pad (3) has a limiting groove (301) at one end away from the abutment block (21), and the reinforcing block (25) is slidably disposed in the limiting groove (301).

9. A steel strip track for inspecting circumferential welds in pipelines as described in claim 4, characterized in that: The pressure block (4) is made of a flexible material.

10. A steel strip track for inspecting circumferential welds of pipelines as described in any one of claims 1-9, characterized in that: The track (1) has multiple toothed grooves (101).

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