Tool for rapidly measuring wall thickness of pipeline
By designing a fast measurement tool including a fixed plate, a ray machine and a strong magnetic universal wheel, combined with a spherical contrast test block and imaging device, the problem of long-term and low accuracy of pipeline wall thickness measurement in the prior art is solved, and fast and accurate pipeline wall thickness detection is achieved, which is suitable for a variety of pipeline sizes.
Patent Information
- Application Number
- CN202422342789.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-09-25
AI Technical Summary
In the pipeline inspection, it is difficult to quickly and accurately determine whether the thickness of the pipeline wall is less than the minimum required thickness, resulting in the inability to timely determine whether the pipeline can be used safely, and the measurement process takes a long time and labor investment is large.
A rapid measurement tool including a fixed plate, a ray machine, a universal wheel and a two-test block structure was designed. The highly magnetic universal wheel was adsorbed on the pipe, combined with a spherical contrast test block and an imaging device to achieve rapid and accurate measurement of the pipe wall thickness, and the diameter of the test block can be adjusted to accommodate different pipes.
It realizes rapid and labor-saving measurement of pipeline wall thickness, can be disassembled and installed between multiple measurement points, and can accurately judge the degree of pipeline thinning, ensure safe use, and is suitable for pipeline inspection of different diameters.
Smart Images
Figure CN223228975U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of pressure pipeline detection, in particular to a tool for quickly measuring the wall thickness of a pipeline. Background Art
[0002] Digital X-ray detection is based on the principle of X-ray detection. The X-ray photons attenuated after passing through the object are received by the imaging device (imaging plate or detector). The imaging device converts the X-ray photons into electrical signals, which are then amplified and converted into digital signals through A / D conversion. The signals are processed by a computer and output on the display in the form of images.
[0003] During use, the inner wall of a pipeline may wear and thin, while the outer wall may corrode and thin, causing the actual thickness to be less than the nominal thickness. When the thickness falls below the minimum required wall thickness, the pressure pipeline may explode, seriously endangering personal and property safety. Existing technology typically uses ultrasonic thickness measurement for pipeline inspection, but ultrasonic thickness measurement can only measure a fingernail-sized point at a time, requiring significant time and manpower to measure the thickness of an entire pipeline. Using only digital radiographic inspection, without a comparison test block, inspectors cannot accurately determine whether the extent of thinning is less than the minimum required wall thickness, and therefore cannot determine whether the pressure pipeline is safe to use.
[0004] Therefore, a tool for quickly measuring pipe wall thickness is needed to solve the above problems. Utility Model Content
[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:
[0006] A tool for quickly measuring pipe wall thickness, comprising a fixed plate, a radiograph, four universal wheels and two test block structures;
[0007] Universal wheels are set at the four corners of the lower end of the fixed plate. The universal wheels are all strongly magnetic. The four universal wheels are used to adsorb on the pipeline. The X-ray machine is fixed on the upper end of the fixed plate. The two test block structures are respectively set on both sides of the fixed plate.
[0008] Each test block structure includes a connecting frame and a spherical comparison test block;
[0009] The connecting frame is connected to one side of the fixing plate, the imaging device is arranged below the X-ray machine, and the imaging device is connected to one of the connecting frames; a spherical comparison block is detachably arranged on the connecting frame, and the spherical comparison block is arranged between the X-ray machine and the imaging device.
[0010] Preferably, the connecting frame includes an upper sliding plate and a fixing frame; the upper sliding plate is connected to one side of the fixing plate, and one end of the fixing frame is connected to the upper sliding plate.
[0011] Preferably, a sliding groove is provided on one side of the fixed plate, one end of the upper sliding plate is slidably connected to the sliding groove, one end of the telescopic rod is fixedly connected to the fixed plate, and the other end is fixedly connected to the upper sliding plate, and the telescopic rod is used to drive the upper sliding plate to move horizontally in the sliding groove relative to the fixed plate.
[0012] Preferably, two sliding columns are provided at the lower end of the upper sliding plate, and a vertical sliding groove matching the sliding columns is provided at the upper end of the fixed frame; one end of the sliding column is fixedly connected to the upper sliding plate, and the other end is slidably connected to the vertical sliding groove; the vertical motor is fixedly provided on the upper sliding plate, and the output end of the vertical motor is connected to the vertical screw, and the vertical screw is threadedly connected to the fixed frame; the lower end of one of the fixed frames is fixedly connected to the imaging device.
[0013] Preferably, a clamping groove is provided on the fixing frame, one end of the sliding block slides in the clamping groove, and the other end of the sliding block is fixedly connected to a clamping part, and the two clamping parts are symmetrically arranged; the clamping motor is fixedly arranged on the fixing frame, and the output end of the clamping motor is fixedly connected to the double-threaded screw, and the left-handed thread and the right-handed thread on the double-threaded screw are respectively threadedly connected to the two sliding blocks, and the two clamping parts are used to clamp the spherical comparison test block.
[0014] Furthermore, the diameter of the spherical comparison test block is consistent with the nominal thickness of the pipe being tested.
[0015] Furthermore, the cross section of the clamping portion is an arc-shaped structure, and the inner arc surfaces of the two clamping portions are arranged opposite to each other.
[0016] Preferably, the imaging device is a flat panel detector or an imaging plate.
[0017] Preferably, the universal wheel is a strong magnetic wheel with a large suction force of 8000 Gauss.
[0018] Preferably, the two clamping parts are made of plastic.
[0019] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:
[0020] 1. The utility model can fix the X-ray machine and the imaging device, and at the same time, the tooling for quickly measuring the pipe wall thickness can be rotated or moved linearly around the pipe, so that it can measure multiple measuring points on the pipe without the need for manual disassembly and reinstallation, saving time and effort.
[0021] Second, by using the imaging distance of a spherical comparison test block of known diameter on the imaging device, the actual wall thickness of the upper edge of the pipeline and the actual wall thickness of the lower edge of the pipeline can be calculated, which makes it easier for inspection personnel to determine on-site whether the thinning degree of the pipeline is less than the minimum required wall thickness, and then determine whether the pressure pipeline can be used safely.
[0022] 3. The spherical comparison test block can be replaced as needed, and the distance between the X-ray machine and the imaging device can be adjusted to facilitate the detection of pipes with different diameters. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.
[0024] Figure 1 This is a schematic structural diagram of a tool for quickly measuring pipe wall thickness according to the present utility model;
[0025] Figure 2 This is another structural schematic diagram of a tool for quickly measuring pipe wall thickness according to the utility model;
[0026] Figure 3 This is a schematic diagram of the use of a tool for quickly measuring pipe wall thickness according to the utility model;
[0027] Description of main component symbols
[0028] Fixed plate 11 X-ray machine 12 Universal wheel 13 Connecting frame 2 Imaging device 3 Spherical comparison test block 4 Upper sliding plate 21 Fixed frame 22 Sliding groove 111 Telescopic rod 112 Sliding column 211 Vertical sliding groove 212 Vertical motor 213 Vertical screw 214 Clamping groove 221 Slider 222 Clamping portion 223 Clamping motor 224 Double threaded screw 225 Tested pipeline 40 Test block structure 20
[0029] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION
[0030] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish different objects, not to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.
[0031] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0032] See also Figure 1-Figure 3 The embodiment of the utility model provides a tool for quickly measuring the wall thickness of a pipe, comprising a fixing plate 11, a X-ray machine 12, four universal wheels 13 and two test block structures 20;
[0033] Universal wheels 13 are provided at the four corners of the lower end of the fixed plate 11. The universal wheels 13 are all strongly magnetic. The four universal wheels 13 are used to be adsorbed on the pipeline. The X-ray machine 12 is fixedly provided at the upper end of the fixed plate 11. Two test block structures 20 are respectively provided on both sides of the fixed plate 11.
[0034] Each test block structure 20 includes a connecting frame 2 and a spherical comparison test block 4;
[0035] The connecting frame 2 is connected to one side of the fixing plate 11, the imaging device 3 is arranged below the X-ray machine 12, and the imaging device 3 is connected to one of the connecting frames 2; a spherical comparison block 4 is detachably provided on the connecting frame 2, and the spherical comparison block 4 is arranged between the X-ray machine 12 and the imaging device 3.
[0036] The universal wheels 13 are all strongly magnetic, and when in use, the user can move the tooling for quickly measuring the pipe wall thickness along the pipe to meet the position switching requirements for pipe detection.
[0037] In one embodiment of the present invention, the connecting frame 2 includes an upper sliding plate 21 and a fixing frame 22;
[0038] The upper sliding plate 21 is connected to one side of the fixed plate 11 , and one end of the fixed frame 22 is connected to the upper sliding plate 21 .
[0039] The telescopic rod 112 is an electric telescopic rod.
[0040] In one embodiment of the present invention, a sliding groove 111 is provided on one side of the fixed plate 11, one end of the upper sliding plate 21 is slidably connected to the sliding groove 111, one end of the telescopic rod 112 is fixedly connected to the fixed plate 11, and the other end is fixedly connected to the upper sliding plate 21, and the telescopic rod 112 is used to drive the upper sliding plate 21 to move horizontally relative to the fixed plate 11 in the sliding groove 111.
[0041] In one embodiment of the present invention, the two test block structures 20 are symmetrically disposed on both sides of the fixing plate 11 .
[0042] In one embodiment of the present invention, two sliding posts 211 are provided at the lower end of the upper sliding plate 21, and a vertical sliding groove 212 matching the sliding posts 211 is provided at the upper end of the fixed frame 22. One end of the sliding post 211 is fixedly connected to the upper sliding plate 21, and the other end is slidably connected to the vertical sliding groove 212. A vertical motor 213 is fixedly mounted on the upper sliding plate 21, and the output end of the vertical motor 213 is connected to a vertical screw 214, which is threadedly connected to the fixed frame 22. The lower end of one of the fixed frames 22 is fixedly connected to the imaging device 3. Rotation of the vertical motor 213 allows the fixed frame 22 to move vertically relative to the fixed plate 11, thereby adjusting the distance between the X-ray machine 12 and the imaging device 3 or the spherical comparison block 4 according to the diameter of the pipeline.
[0043] In one embodiment of the present invention, a clamping groove 221 is provided on the fixed frame 22. One end of a sliding block 222 slides within the clamping groove 221. The other end of the sliding block 222 is fixedly connected to a clamping portion 223. The two clamping portions 223 are symmetrically arranged. A clamping motor 224 is fixedly provided on the fixed frame 22. The output end of the clamping motor 224 is fixedly connected to a double-threaded screw 225. The left-handed and right-handed threads on the double-threaded screw 225 are respectively threadedly connected to the two sliding blocks 222. The two clamping portions 223 are used to clamp the spherical comparison test block 4. The rotation of the clamping motor 224 can drive the sliding blocks 222 on the double-threaded screw 225 to move away from or toward each other along the clamping groove 221, thereby achieving the clamping or release of the spherical comparison test block 4 by the two clamping portions 223, so that spherical comparison test blocks 4 of different diameters can be clamped and replaced.
[0044] In one embodiment of the present invention, the diameter of the spherical comparison test block 4 is consistent with the nominal thickness of the measured pipe and is in close contact with the measured pipe.
[0045] In one embodiment of the present invention, the cross section of the clamping portion 223 is an arc-shaped structure, and the inner arc surfaces of the two clamping portions 223 are arranged opposite to each other.
[0046] In one embodiment of the present invention, the two clamping parts are made of plastic.
[0047] In one embodiment of the present invention, the imaging device 3 is a flat panel detector or an imaging plate.
[0048] When the utility model is used, the universal wheel 13 is magnetically attracted to the outer wall surface of the measured pipe 40, and the imaging device 3 is located below the measured pipe 40 and the two spherical comparison test blocks 4 are located on both sides of the measured pipe 40 by adjusting the extension of the telescopic rod 112 and the rotation of the vertical screw 214. At this time, the two spherical comparison test blocks are on the same horizontal plane, and the X-ray machine 12 is started to irradiate the two spherical comparison test blocks 4 and the center of the measured pipe 40. After the radiation penetrates the object, it is received by the imaging device 3 and an image is formed. The position of the spherical comparison test block is adjusted along the outer wall of the pipe so that the projections of the spherical comparison test block 4 and the measured pipe 40 are just in contact and do not overlap.
[0049] Preferably, during measurement, the centers of the two spherical comparison test blocks 4 and the center of the measured pipe 40 can be adjusted to be on the same plane.
[0050] like Figure 3 As shown, a method for quickly measuring wall thickness by imaging two spherical comparison test blocks 4 and imaging the measured pipe 40 is as follows: the projection lengths of the two spherical comparison test blocks 4 on the imaging device 3 are L1 and L4, the projection length of the wall thickness of the upper half of the pipe is L2, and the projection length of the wall thickness of the lower half of the pipe is L3; the actual wall thickness of the upper edge of the pipe = the diameter of the spherical comparison test block 4 × L2 / L1; the actual wall thickness of the lower edge of the pipe = the diameter of the spherical comparison test block 4 × L3 / L4.
[0051] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.
Claims
1. A tool for quickly measuring pipe wall thickness, characterized by: It includes a fixed plate, a X-ray machine, four universal wheels and two test block structures; Universal wheels are set at the four corners of the lower end of the fixed plate. The universal wheels are all strongly magnetic. The four universal wheels are used to adsorb on the pipeline. The X-ray machine is fixed on the upper end of the fixed plate. The two test block structures are respectively set on both sides of the fixed plate. Each test block structure includes a connecting frame and a spherical comparison test block; The connecting frame is connected to one side of the fixing plate, the imaging device is arranged below the X-ray machine, and the imaging device is connected to one of the connecting frames; a spherical comparison block is detachably arranged on the connecting frame, and the spherical comparison block is arranged between the X-ray machine and the imaging device.
2. The tool for quickly measuring pipe wall thickness according to claim 1, characterized in that: The connecting frame comprises an upper sliding plate and a fixing frame; the upper sliding plate is connected to one side of the fixing plate, and one end of the fixing frame is connected to the upper sliding plate.
3. The tool for quickly measuring pipe wall thickness according to claim 2, characterized in that: A sliding groove is provided on one side of the fixed plate, one end of the upper sliding plate is slidably connected to the sliding groove, one end of the telescopic rod is fixedly connected to the fixed plate, and the other end is fixedly connected to the upper sliding plate. The telescopic rod is used to drive the upper sliding plate to move horizontally relative to the fixed plate in the sliding groove.
4. The tool for quickly measuring pipe wall thickness according to claim 3, characterized in that: Two sliding columns are provided at the lower end of the upper sliding plate, and a vertical sliding groove matching the sliding columns is provided at the upper end of the fixed frame; one end of the sliding column is fixedly connected to the upper sliding plate, and the other end is slidably connected to the vertical sliding groove; the vertical motor is fixedly set on the upper sliding plate, and the output end of the vertical motor is connected to the vertical screw, and the vertical screw is threadedly connected to the fixed frame; the lower end of one of the fixed frames is fixedly connected to the imaging device.
5. The tool for quickly measuring pipe wall thickness according to claim 4, characterized in that: A clamping groove is provided on the fixed frame, one end of the sliding block slides in the clamping groove, and the other end of the sliding block is fixedly connected to a clamping part, and the two clamping parts are symmetrically arranged; the clamping motor is fixedly arranged on the fixed frame, and the output end of the clamping motor is fixedly connected to the double-threaded screw, and the left-handed thread and the right-handed thread on the double-threaded screw are respectively threadedly connected to the two sliding blocks, and the two clamping parts are used to clamp the spherical comparison test block.
6. The tool for quickly measuring pipe wall thickness according to claim 1, characterized in that: The diameter of the spherical comparison test block is consistent with the nominal thickness of the pipe being tested.
7. The tool for quickly measuring pipe wall thickness according to claim 5, characterized in that: The cross section of the clamping part is an arc-shaped structure, and the inner arc surfaces of the two clamping parts are arranged opposite to each other.