A gas pipeline wall thickness detection device

Abstract

The utility model discloses a kind of gas pipeline wall thickness detection devices, including positioning frame main body, it is characterized by: the positioning frame main body is slidably connected positioning frame sub-body, positioning frame main body is slidably connected second support, second support is slidably connected first support, first support is threadedly connected second screw rod, second screw rod is fixedly connected mounting seat, mounting seat is fixedly connected bearing seat, bearing seat is rotatably connected shaft by second bearing, shaft is threadedly connected fourth screw rod, fourth screw rod is fixedly connected mounting bracket, mounting bracket is provided with scale, two sliding seats are slidably connected in mounting bracket, two sliding seats are respectively threadedly connected one third screw rod, third screw rod is fixedly connected laser ranging sensor, third screw rod is fixedly connected adapter, adapter is fixedly connected arc top head;The beneficial effects of the utility model are reflected in: large detection range, continuous multi-point detection can be completed, wall thickness change can be intuitively found according to the data of detection point.

Description

Technical Field

[0001] This utility model relates to the field of wall thickness detection, specifically to a gas pipeline wall thickness detection device. Background Technology

[0002] Gas pipelines are pipelines that transport natural gas and other gases. The wall thickness of gas pipelines affects their pressure resistance and safety. Therefore, the pipe wall thickness needs to be tested during production or during subsequent sampling inspections.

[0003] Meanwhile, gas pipelines (especially buried steel pipelines) are exposed to complex environments such as soil, water, oxygen, stray current, and microorganisms for a long time. Corrosion is the main cause of pipe wall thinning and eventual failure. Wall thickness testing is the most effective means to directly and quantitatively assess the thickness loss of pipelines due to corrosion (external corrosion and internal corrosion). By measuring the remaining wall thickness of key parts, the severity and rate of corrosion can be determined.

[0004] Publication (Announcement) No.: CN220136234U, Gas Pipeline Wall Thickness Detection Device. The detection is a single-point detection, with a small detection range, lack of continuity, and high randomness of detection results. It cannot accurately reflect the wall thickness of gas pipelines. If the accuracy is improved, a large number of points need to be detected, which is extremely labor-intensive and has problems. Utility Model Content

[0005] In view of the deficiencies in the existing technology, this utility model provides a gas pipeline wall thickness detection device to solve the existing problems.

[0006] This utility model is achieved through the following technical solution: a gas pipeline wall thickness detection device, comprising a positioning frame main body, characterized in that: a positioning frame sub-body is slidably connected to the positioning frame main body, a second bracket is slidably connected to the positioning frame main body, a first bracket is slidably connected to the second bracket, a second screw is threadedly connected to the first bracket, a mounting seat is fixedly connected to the second screw, a bearing seat is fixedly connected to the mounting seat, a rotating shaft is rotatably connected to the bearing seat via a second bearing, a fourth screw is threadedly connected to the rotating shaft, a mounting frame is fixedly connected to the fourth screw, the mounting frame is provided with a scale, two sliding blocks are slidably connected inside the mounting frame, a third screw is threadedly connected to each of the two sliding blocks, a laser ranging sensor is fixedly connected to the third screw, an adapter is fixedly connected to the third screw, and an arc-shaped top is fixedly connected to the adapter.

[0007] Preferably, one end of a spring is fixedly connected to the slide, the other end of the spring is fixedly connected to the mounting bracket, and two limiting blocks are fixedly connected to the slide, with the limiting blocks slidably connected to the mounting bracket.

[0008] The spring is a compression spring, and a through hole is opened on the arc-shaped top. The laser from the laser rangefinder sensor passes through the through hole of the arc-shaped top.

[0009] Preferably, one end of the fourth screw is threaded to a counterweight, and two nuts are threaded to the fourth screw.

[0010] Preferably, a motor is fixedly connected to the mounting base, and the output shaft of the motor is fixedly connected to a rotating shaft via a coupling.

[0011] Preferably, a fixing block is fixedly connected to the main body of the positioning frame, a first screw is threadedly connected to the fixing block, a handwheel is fixedly connected to one end of the first screw, and a slider is rotatably connected to one end of the first screw through a first bearing. The slider is slidably connected to the main body of the positioning frame.

[0012] Preferably, a bolt is threaded onto the main body of the positioning frame, the bolt is tightened against the second bracket, and the second bracket is installed perpendicular to the main body of the positioning frame.

[0013] Preferably, a bolt is threaded onto the second bracket, and the bolt is tightened against the first bracket.

[0014] The beneficial effects of this utility model are reflected in the following aspects: it has a large detection range, can complete continuous multi-point detection, can intuitively discover wall thickness changes based on the data of the detection points, uses the initial point as a reference, and directly displays pipe wall changes through laser rangefinder sensors, with higher accuracy, can judge the severity and speed of corrosion, and is faster to install and detect. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 Schematic diagram of the structure at point A in the middle; Figure 3 This is a schematic diagram of the main structure of this utility model; Figure 4 This utility model Figure 3 Cross-sectional view at point BB; Figure 5 This utility model Figure 4 Enlarged view of the structure at point C; Figure 6 This is a schematic diagram of the left-side structure of this utility model; Figure 7 This is a top view of the structure of this utility model.

[0017] In the attached diagram, 1. Handwheel, 2. First screw, 3. Mounting bracket, 4. Slide, 5. Mounting base, 6. Second screw, 7. First bracket, 8. Bolt, 9. Second bracket, 10. Positioning frame body, 11. Third screw, 12. Positioning frame sub-body, 13. Adapter, 14. Bearing seat, 15. Fourth screw, 16. Counterweight, 17. Fixing block, 18. Arc-shaped top, 19. Laser rangefinder sensor, 20. First bearing, 21. Slider, 22. Spring, 23. Motor, 24. Nut, 25. Rotating shaft, 26. Second bearing, 27. Limiting block. Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0019] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0020] For ease of explanation, spatial relative terms such as “up,” “down,” “left,” and “right” may be used herein to describe the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, an element described as being “down” of other elements or features would be positioned “up” of those other elements or features. Therefore, the exemplary term “down” can encompass both up and down orientations.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific implementation of this utility model will be described in detail below with reference to specific embodiments: such as Figures 1-7The present invention is achieved through the following technical solution: a gas pipeline wall thickness detection device, comprising a positioning frame main body 10, and a positioning frame sub-body 12 slidably connected to the positioning frame main body 10, as shown in the figure. Figure 1 As shown, a slide rail is provided in the middle of the positioning frame body 10. Both the positioning frame body 10 and the positioning frame sub-body 12 are right-angled rulers. A second bracket 9 is slidably connected to the positioning frame body 10. The second bracket 9 is installed perpendicular to the positioning frame body 10. A bolt 8 is threadedly connected to the positioning frame body 10. The bolt 8 is tightened against the second bracket 9. A first bracket 7 is slidably connected to the second bracket 9. The first bracket 7 is installed perpendicular to the second bracket 9. The angle between the first bracket 7 and the mounting frame body 10 is 45°. A bolt 8 is threadedly connected to the second bracket 9. The bolt 8 is tightened against the first bracket 7. The first bracket 7 is threadedly connected to the second screw 6, the second screw 6 is fixedly connected to the mounting base 5, the mounting base 5 is fixedly connected to the bearing seat 14, the bearing seat 14 is rotatably connected to the rotating shaft 25 through the second bearing 26, the mounting base 5 is fixedly connected to the motor 23, and the output shaft of the motor 23 is fixedly connected to the rotating shaft 25 through a coupling. A fourth screw 15 is threaded onto the rotating shaft 25. One end of the fourth screw 15 is fixedly connected to the mounting bracket 3. The mounting bracket 3 is equipped with a scale for reading the wall thickness at the initial position point. Two slide blocks 4 are slidably connected inside the mounting bracket 3. One end of a spring 22 is fixedly connected to the slide block 4, and the other end of the spring 22 is fixedly connected inside the mounting bracket 3. The spring 22 is a compression spring. Two limiting blocks 27 are fixedly connected to the slide block 4. The limiting blocks 27 are slidably connected to the mounting bracket 3. The limiting blocks 27 ensure the vertical sliding displacement of the slide block 4. The mounting bracket 3 and the mounting bracket body 10 remain parallel. A third screw 11 is threaded onto each of the two slide blocks 4. A laser rangefinder 19 is fixedly connected to the third screw 11. An adapter 13 is fixedly connected to the third screw 11. An arc-shaped top 18 is fixedly connected to the adapter 13. A through hole is opened on the arc-shaped top 18. The laser of the laser rangefinder 19 passes through the through hole of the arc-shaped top 18. The two laser rangefinders 19 shoot towards each other. The laser rangefinders 19 are connected to the microcontroller through a cable. The microcontroller is connected to the computer through a cable.

[0023] The fourth screw 15 is threaded to one end with a counterweight 16, which is used to balance the weight of the mounting bracket 3 and keep the mounting bracket 3 stable when it rotates; the fourth screw 15 is threaded to two nuts 24, which are located on both sides of the rotating shaft 25 to fasten the fourth screw 15.

[0024] A fixing block 17 is fixedly connected to the positioning frame body 10. A first screw 2 is threadedly connected to the fixing block 17. A handwheel 1 is fixedly connected to one end of the first screw 2. A slider 21 is rotatably connected to the other end of the first screw 2 through a first bearing 20. The slider 21 is slidably connected to the positioning frame body 10.

[0025] The working principle of this utility model is as follows: The positioning frame body 10 and the positioning frame sub-body 12 are fitted onto the outer wall of the gas pipeline and contracted so that both sides contact the gas pipeline. Then, the handwheel 1 is turned to make the slider 21 press against the positioning frame sub-body 12. At this time, the position of the first bracket 7 is adjusted so that the second screw 6 is adjusted to the center position of the gas pipeline without being coaxial with the gas pipeline. Then, the bolts 8 on the second bracket 9 are tightened to fix the position of the first bracket 7. Then, the second bracket 9 is adjusted according to the gas pipeline wall thickness detection position, and the bolts 8 are tightened to fix the second bracket 9 on the positioning frame body 10. At this time, the arc-shaped tops on the two slides 4 are... One of the heads, 18, presses against the inner wall of the gas pipeline, while the other presses against the outer wall. The thickness at the initial position is read according to the scale on the mounting bracket 3. The test data of the two laser rangefinders 19 are recorded at this time. The continuous detection is completed by starting the motor 23 to rotate one revolution. The multiple sets of data from the laser rangefinders 19 are the data of each position of the gas pipeline in one revolution. By comparing with the initial position, the wall thickness change at each position of the gas pipeline can be obtained. The slide 4 is connected to a spring 22, which can move up and down along the mounting bracket 3. Therefore, it is not necessary to accurately find the center of the pipeline during the wall thickness detection process, and the detection is fast and accurate.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model 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. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A gas pipeline wall thickness detection device, comprising a positioning frame body (10), characterized in that: The positioning frame main body (10) is slidably connected to the positioning frame sub-body (12), the positioning frame main body (10) is slidably connected to the second bracket (9), the second bracket (9) is slidably connected to the first bracket (7), the first bracket (7) is threadedly connected to the second screw (6), the second screw (6) is fixedly connected to the mounting seat (5), the mounting seat (5) is fixedly connected to the bearing seat (5), the bearing seat (14) is rotatably connected to the rotating shaft (25) through the second bearing (26), the rotating shaft (25) is threadedly connected to the fourth screw (15), the fourth screw (15) is fixedly connected to the mounting frame (3), the mounting frame (3) is provided with a scale, the mounting frame (3) is slidably connected to two slide seats (4), the two slide seats (4) are respectively threadedly connected to a third screw (11), the third screw (11) is fixedly connected to the laser range sensor (19), the third screw (11) is fixedly connected to the adapter (13), the adapter (13) is fixedly connected to the arc-shaped top head (18).

2. The gas pipeline wall thickness detection device according to claim 1, characterized in that: One end of a spring (22) is fixedly connected to the slide (4), and the other end of the spring (22) is fixedly connected to the mounting bracket (3). Two limiting blocks (27) are fixedly connected to the slide (4), and the limiting blocks (27) are slidably connected to the mounting bracket (3).

3. The gas pipeline wall thickness detection device according to claim 2, characterized in that: The spring (22) is a compression spring, and a through hole is provided on the arc-shaped top (18). The laser of the laser range sensor (19) passes through the through hole of the arc-shaped top (18).

4. The gas pipeline wall thickness detection device according to claim 3, characterized in that: One end of the fourth screw (15) is threaded to a counterweight (16), and two nuts (24) are threaded onto the fourth screw (15).

5. A gas pipeline wall thickness detection device according to claim 1, characterized in that: The motor (23) is fixedly connected to the mounting base (5), and the output shaft of the motor (23) is fixedly connected to the rotating shaft (25) through a coupling.

6. The gas pipeline wall thickness detection device according to claim 1, characterized in that: The positioning frame body (10) is fixedly connected to a fixing block (17), and a first screw (2) is threadedly connected to the fixing block (17). One end of the first screw (2) is fixedly connected to a handwheel (1), and the other end of the first screw (2) is rotatably connected to a slider (21) through a first bearing (20). The slider (21) is slidably connected to the positioning frame body (10).

7. A gas pipeline wall thickness detection device according to claim 1, characterized in that: A bolt (8) is threaded onto the main body (10) of the positioning frame, and the bolt (8) is tightened against the second bracket (9). The second bracket (9) is installed perpendicular to the main body (10) of the positioning frame.

8. A gas pipeline wall thickness detection device according to claim 1, characterized in that: A bolt (8) is threaded onto the second bracket (9), and the bolt (8) is tightened against the first bracket (7).

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