Oil and gas pipeline welding seam detection device
By fixing the detection device to the outside of the oil and gas pipeline and using an actuator to drive the detection box for continuous scanning imaging, the problem of needing to disassemble and install the track in existing equipment is solved, and efficient weld inspection is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-04-07
AI Technical Summary
Existing oil and gas pipeline weld inspection equipment requires a complete assembly-inspection-disassembly process for each weld inspection, resulting in low inspection efficiency.
The device, consisting of a base, electromagnet, sliding seat, rotating parts, sliding support, and detection box, is attached to the outside of the pipe by electromagnet and driven by an actuation component to perform continuous scanning imaging on the outside of the pipe, thus avoiding the need for track disassembly and assembly.
It improves the efficiency of individual weld inspection, saves time, and enhances the overall work efficiency of pipeline weld inspection.
Smart Images
Figure CN224095815U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of nondestructive testing technology, and in particular to an inspection device for weld seams in oil and gas pipelines. Background Technology
[0002] Oil and gas pipeline weld inspection is a crucial step in assessing the quality of pipeline welds using non-destructive testing techniques. It aims to identify defects such as cracks, porosity, and lack of fusion to ensure safe pipeline operation. Commonly used inspection techniques include electromagnetic testing, radiographic testing, ultrasonic testing, and magnetic particle testing.
[0003] Existing testing equipment typically includes a ring track system that can be fixed to the outside of the pipe and a testing module. The testing module generates magnetic fields, rays, or ultrasound and receives the test results. During operation, the testing module moves slowly along the ring track. The ring track features a detachable design, consisting of two semi-circular components assembled via a quick-connect structure. The specific operating procedure is as follows: Before testing, technicians must assemble the disassembled ring track around the outer wall of the pipe, calibrate it, and then tighten it. After testing, the connection structure must be disassembled in reverse.
[0004] Existing testing equipment has significant efficiency bottlenecks: because each weld inspection requires a complete "assembly-inspection-disassembly" process, the inspection time for a single weld is long, and there are often multiple welds to be inspected on the pipeline. The repeated disassembly and assembly of the circular track leads to low efficiency in pipeline weld inspection. Utility Model Content
[0005] This application provides an oil and gas pipeline weld inspection device, which solves the technical problem that existing weld inspection equipment has a long inspection time for a single weld and low work efficiency in the process of inspecting oil and gas pipelines.
[0006] The oil and gas pipeline weld inspection device provided in this application includes: a base; at least one electromagnet fixedly connected to the inner side of the base; a sliding seat fixedly connected to the inner side of the base; a rotating member slidably connected to the sliding seat, and the rotating member having an arc-shaped structure greater than 180°; a sliding bracket slidably connected to the rotating member; an inspection box mounted on the sliding bracket for imaging the interior of the weld; a first actuation component connected to the rotating member and the sliding bracket, configured to drive the sliding bracket to move on the rotating member; and a second actuation component connected to the base and the rotating member, configured to drive the rotating member to slide on the sliding seat; wherein the center of the moving trajectory of the sliding bracket coincides with the center of the moving trajectory of the sliding seat.
[0007] In one possible implementation, the first actuation component includes a first motor, a first gear, and a first arc-shaped rack; the first arc-shaped rack is fixedly connected to the rotating member; the first motor is fixedly connected to the sliding bracket, the first gear is mounted on the rotating shaft of the first motor, and the first gear meshes with the first arc-shaped rack.
[0008] In one possible implementation, the second actuation component includes a second motor, a second gear, and a second arc-shaped rack; the second arc-shaped rack is fixedly connected to the rotating member; the second motor is fixedly connected to the base, the second gear is mounted on the shaft of the second motor, and the second gear meshes with the second arc-shaped rack.
[0009] In one possible implementation, the sliding seat has an arc-shaped groove; the oil and gas pipeline weld inspection device further includes: a first arc-shaped slide rail, which is fixedly connected to the rotating component and installed in the groove.
[0010] In one possible implementation, the oil and gas pipeline weld inspection device further includes: a second arc-shaped slide rail, which is fixedly connected to the rotating component; a second slider, which is mounted on the second arc-shaped slide rail, and the sliding bracket is fixedly connected to the second slider.
[0011] In one possible implementation, the inner side of the base is provided with a first mounting plane, a second mounting plane, and a third mounting plane; the at least one electromagnet includes a first electromagnet, a second electromagnet, and two third electromagnets; the first electromagnet is fixedly connected to the first mounting plane, the second electromagnet is fixedly connected to the third mounting plane, and the distance between the first electromagnet and the sliding seat, and the distance between the second electromagnet and the sliding seat are both first distances; the two third electromagnets are fixedly connected to the second mounting plane, and the distance between the two third electromagnets and the sliding seat is a second distance, which is greater than the first distance.
[0012] The technical solutions provided in this application embodiment have at least the following technical effects:
[0013] This application provides an oil and gas pipeline weld inspection device, which includes a base, at least one electromagnet, a sliding seat, a rotating component, a sliding support, an inspection box, a first actuation component, and a second actuation component. When energized, the electromagnet attracts the base to the oil and gas pipeline. The first actuation component drives the rotating component to slide on the sliding seat, causing the inspection box to perform a circular motion on the outer surface of the oil and gas pipeline, scanning and imaging the weld. After the sliding support moves from one end of the rotating component to the other, the scanning length of the inspection box is greater than half the length of the weld, and the second actuation component drives the rotating component to slide on the sliding seat, allowing the inspection box to continue scanning and imaging the weld until it completes a full scan. This oil and gas pipeline weld inspection device eliminates the need for track disassembly and assembly, saving time for inspecting individual welds and improving the efficiency of pipeline weld inspection. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 A schematic diagram of the structure of the oil and gas pipeline weld inspection device provided in the embodiments of this application;
[0016] Figure 2 This is a schematic diagram showing the connection of the sliding bracket, detection box, first motor, and first gear provided in an embodiment of this application.
[0017] Reference numerals: 10-base; 11-first mounting plane; 12-second mounting plane; 13-third mounting plane; 20-electromagnet; 21-first electromagnet; 22-second electromagnet; 23-third electromagnet; 30-sliding seat; 31-arc-shaped slide groove; 40-rotating component; 41-first arc-shaped slide rail; 42-second arc-shaped slide rail; 43-second slider; 50-sliding bracket; 60-detection box; 70-first actuation component; 71-first motor; 72-first gear; 73-first arc-shaped rack; 80-second actuation component; 81-second motor; 82-second gear; 83-second arc-shaped rack; 90-fixed bracket. Detailed Implementation
[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0019] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the embodiments of this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.
[0020] This application provides an oil and gas pipeline weld inspection device, such as... Figure 1 As shown, the oil and gas pipeline weld inspection device includes a base 10, at least one electromagnet 20, a sliding seat 30, a rotating component 40, a sliding support 50, an inspection box 60, a first actuation component 70, and a second actuation component 80.
[0021] At least one electromagnet 20 is fixedly connected to the inner side of the base 10. When the oil and gas pipeline weld inspection device needs to inspect the weld, the electromagnet 20 is energized, causing the electromagnet 20 to be attracted to the surface of the oil and gas pipeline, thereby fixing the oil and gas pipeline weld inspection device to the outside of the oil and gas pipeline.
[0022] The sliding seat 30 is fixedly connected to the inner side of the base 10. The rotating member 40 is slidably connected to the sliding seat 30, and the rotating member 40 has an arc-shaped structure with an angle greater than 180°. The sliding bracket 50 is slidably connected to the rotating member 40. The inspection box 60 is mounted on the sliding bracket 50 and is used to image the interior of the weld. The center of the moving trajectory of the sliding bracket 50 coincides with the center of the moving trajectory of the sliding seat 30.
[0023] When the sliding bracket 50 moves on the rotating member 40, the detection box 60 moves with the sliding bracket 50 and scans the weld. When the sliding bracket 50 moves from one end of the rotating member 40 to the other end, the scanning length of the detection box 60 is greater than half the length of the weld. When the rotating member 40 moves on the sliding seat 30, the detection box 60 moves with the rotating member 40 and continues to scan the weld, thus enabling the detection box 60 to perform a complete scan of the weld.
[0024] The first actuation assembly 70 is connected to the rotating member 40 and the sliding bracket 50, and is configured to drive the sliding bracket 50 to move relative to the rotating member 40. The second actuation assembly 80 is connected to the base 10 and the rotating member 40, and is configured to drive the rotating member 40 to slide on the sliding seat 30.
[0025] Therefore, this oil and gas pipeline weld inspection device does not require track disassembly and assembly, saving time for individual weld inspection and improving the efficiency of pipeline weld inspection.
[0026] like Figure 1 and Figure 2 As shown in the embodiment of this application, the first actuation component 70 includes a first motor 71, a first gear 72, and a first arc-shaped rack 73. The first arc-shaped rack 73 is fixedly connected to the rotating member 40. The first motor 71 is fixedly connected to the sliding bracket 50, the first gear 72 is mounted on the rotating shaft of the first motor 71, and the first gear 72 meshes with the first arc-shaped rack 73.
[0027] When the first actuation component 70 drives the sliding bracket 50 to move, the shaft of the first motor 71 drives the first gear 72 to rotate, the first gear 72 moves along the first arc-shaped rack 73, and then the sliding bracket 50, which is fixedly connected to the first motor 71, moves along the first arc-shaped rack 73.
[0028] For example, Figure 1 The first arc-shaped rack 73 is fixedly connected to the side of the rotating part 40 by bolts, and the teeth of the first arc-shaped rack 73 are located on the inner side.
[0029] Continue to refer to Figure 1 In this embodiment, the second actuation component 80 includes a second motor 81, a second gear 82, and a second arc-shaped rack 83. The second arc-shaped rack 83 is fixedly connected to the rotating member 40. The second motor 81 is fixedly connected to the base 10, the second gear 82 is mounted on the rotating shaft of the second motor 81, and the second gear 82 meshes with the second arc-shaped rack 83.
[0030] When the second actuation component 80 drives the rotating component 40 to move, the shaft of the second motor 81 drives the second gear 82 to rotate. Since the second motor 81 is fixedly connected to the base 10, the second arc-shaped rack 83, which meshes with the second gear 82, drives the rotating component 40 to slide on the sliding seat 30, and then the detection box 60 continues to scan and image the weld.
[0031] For example, Figure 1 The second arc-shaped rack 83 is fixedly connected to the rotating side by bolts, and the teeth of the second arc-shaped rack 83 are located on the inner side. The second motor 81 is connected to the inner side of the base 10 by a fixed bracket 90.
[0032] Continue to refer to Figure 1 In this embodiment of the application, the sliding seat 30 is provided with an arc-shaped groove 31, and the oil and gas pipeline weld inspection device also includes a first arc-shaped slide rail 41, which is fixedly connected to the rotating part 40 and installed in the groove.
[0033] For example, the opening of the first groove faces the oil and gas pipeline, the first arc-shaped slide rail 41 is integrally connected to the outer circular surface of the rotating member 40, and the cross-section of the first arc-shaped slide rail 41 and the cross-section of the groove are both isosceles trapezoids.
[0034] In some other embodiments of this application, the outer circular surface of the rotating member 40 is provided with a first T-shaped guide groove, and one end of the first T-shaped guide groove extends to the other end of the rotating member 40. The oil and gas pipeline weld inspection device also includes a plurality of first pulleys, which are rotatably connected to the side of the sliding seat 30 facing the oil and gas pipeline, and the plurality of first pulleys are located inside the first T-shaped guide groove.
[0035] Continue to refer to Figure 1 In this embodiment, the device further includes a second arc-shaped slide rail 42 and a second slider 43. The second arc-shaped slide rail 42 is fixedly connected to the rotating member 40, the second slider 43 is mounted on the second arc-shaped slide rail 42, and the sliding bracket 50 is fixedly connected to the second slider 43.
[0036] When the first actuation component 70 is in operation, the second slider 43 is connected along the second arc-shaped slide rail 42, and the detection box 60 mounted on the sliding bracket 50 moves with the second slider 43. Exemplarily, the second arc-shaped slide rail 42 is fixedly connected to the inner side of the rotating member 40.
[0037] In some other embodiments of this application, a second T-shaped guide groove is provided on the inner side of the rotating member 40, and one end of the second T-shaped guide groove extends to the other end of the rotating member 40. The oil and gas pipeline weld inspection device also includes a plurality of second pulleys, which are rotatably connected to the sliding bracket 50 and are located inside the second T-shaped guide groove.
[0038] Specifically, such as Figure 1 As shown, the inner side of the base 10 is provided with a first mounting plane 11, a second mounting plane 12, and a third mounting plane 13; the at least one electromagnet 20 includes a first electromagnet 21, a second electromagnet 22, and two third electromagnets 23. The first electromagnet 21 is fixedly connected to the first mounting plane 11, and the second electromagnet 22 is fixedly connected to the third mounting plane 13. The distance between the first electromagnet 21 and the sliding seat 30, and the distance between the second electromagnet 22 and the sliding seat 30 are both first distances. The two third electromagnets 23 are fixedly connected to the second mounting plane 12, and the distance between the two third electromagnets 23 and the sliding seat 30 is a second distance, which is greater than the first distance.
[0039] The arrangement of the first electromagnet 21, the second electromagnet 22, and the two third electromagnets 23 on the base 10 ensures that the oil and gas pipeline weld inspection device can be firmly attached to the outer side of the oil and gas pipeline, preventing the oil and gas pipeline weld inspection device from falling off the oil and gas pipeline during operation.
[0040] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, please refer to each other. Each embodiment focuses on describing the differences from other embodiments.
[0041] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this application.
Claims
1. A device for inspecting weld seams in oil and gas pipelines, characterized in that, include: Base; At least one electromagnet is fixedly connected to the inner side of the base; A sliding seat, which is fixedly connected to the inner side of the base; A rotating component, which is slidably connected to the sliding seat, and the rotating component is an arc-shaped structure with a radius greater than 180°; A sliding bracket, which is slidably connected to the rotating member; An inspection box, which is mounted on the sliding bracket, is used to image the interior of the weld. A first actuation component is connected to the rotating member and the sliding bracket, and is configured to drive the sliding bracket to move on the rotating member; as well as A second actuation component, connected to the base and the rotating member, is configured to drive the rotating member to slide on the sliding seat; The center of the moving trajectory of the sliding bracket coincides with the center of the moving trajectory of the sliding seat.
2. The oil and gas pipeline weld inspection device according to claim 1, characterized in that, The first actuation component includes a first motor, a first gear, and a first arc-shaped rack; The first arc-shaped rack is fixedly connected to the rotating component; The first motor is fixedly connected to the sliding bracket, the first gear is mounted on the shaft of the first motor, and the first gear meshes with the first arc-shaped rack.
3. The oil and gas pipeline weld inspection device according to claim 1 or 2, characterized in that, The second actuation component includes a second motor, a second gear, and a second arc-shaped rack; The second arc-shaped rack is fixedly connected to the rotating component; The second motor is fixedly connected to the base, the second gear is mounted on the shaft of the second motor, and the second gear meshes with the second arc-shaped rack.
4. The oil and gas pipeline weld inspection device according to claim 1, characterized in that, The sliding seat is provided with an arc-shaped groove; Also includes: The first arc-shaped slide rail is fixedly connected to the rotating component and installed in the slide groove.
5. The oil and gas pipeline weld inspection device according to claim 1, characterized in that, Also includes: The second arc-shaped slide rail is fixedly connected to the rotating component; The second slider is mounted on the second arc-shaped slide rail, and the sliding bracket is fixedly connected to the second slider.
6. The oil and gas pipeline weld inspection device according to claim 1, characterized in that, The inner side of the base is provided with a first mounting surface, a second mounting surface and a third mounting surface; The at least one electromagnet includes a first electromagnet, a second electromagnet, and two third electromagnets; The first electromagnet is fixedly connected to the first mounting plane, the second electromagnet is fixedly connected to the third mounting plane, and the distance between the first electromagnet and the sliding seat, and the distance between the second electromagnet and the sliding seat are both the first distance; The two third electromagnets are fixedly connected to the second mounting plane, and the distance between the two third electromagnets and the sliding seat is the second distance, which is greater than the first distance.