An arrayed guided wave detection probe
By using components such as positioning straps, Velcro, and limiting blocks on the guided wave probe, the problem of inconvenient adaptive adjustment of the guided wave probe array arrangement is solved, and the accurate detection of the guided wave probe on natural gas pipelines is realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU HONGSHENG XIANGYE CONSTRUCTION TECHNOLOGY CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-06-26
AI Technical Summary
In existing natural gas pipeline inspection, the arrangement of multiple guided wave detection probe arrays is fixed, making it inconvenient to adaptively adjust the spacing, which leads to detection errors.
By employing components such as positioning straps, Velcro, and limiting blocks, the waveguide probes can be adaptively arranged in an array and tightly attached to the surface of the natural gas pipeline through the adhesion of Velcro and the cooperation of limiting blocks, thus ensuring detection accuracy.
The guided wave probe achieves adaptive adjustment, ensuring that the probe is in close contact with the pipeline surface, reducing detection errors and improving the accuracy of natural gas pipeline detection.
Smart Images
Figure CN224416803U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of guided wave detection probe technology, and in particular to an array-type guided wave detection probe. Background Technology
[0002] A guided wave detector is a non-destructive testing sensor based on the principle of guided wave propagation. It emits mechanical stress waves of a specific mode that propagate over long distances within a structure, enabling rapid screening of internal defects in large facilities such as pipelines and storage tanks.
[0003] In existing natural gas pipeline defect detection, multiple guided wave detectors are usually mounted on the surface of the natural gas pipeline for detection. However, the arrangement of multiple guided wave detector arrays is mostly fixed, making it inconvenient to adaptively adjust the spacing between two guided wave detectors, which can easily lead to detection errors. Utility Model Content
[0004] Therefore, it is necessary to provide an array-type guided wave detection probe to address the problem that the arrangement of multiple guided wave detection probe arrays is mostly fixed, making it inconvenient to adaptively adjust the spacing between two guided wave detection probes.
[0005] Includes: a waveguide probe; an adjustment mechanism, the adjustment mechanism including a mounting strip disposed on the surface of the waveguide probe, the top of the mounting strip being fixedly connected with equally arranged positioning strips, a first rough-surface hook and loop fastener and a second hook and loop fastener, the bottom of the positioning strip being fixedly connected with the first hook and loop fastener, and the bottom of the mounting strip being fixedly connected with the second rough-surface hook and loop fastener.
[0006] In one embodiment, the top of the mounting belt is fixedly connected to a series of equally arranged limiting blocks, and one side of the limiting blocks is tumbling connected to a ball bearing.
[0007] In one embodiment, the top of the mounting strap is fixedly connected to a series of equally spaced restraint sleeves, and the surface of the waveguide probe contacts the inner wall of the restraint sleeves.
[0008] In one embodiment, both the mounting belt and the positioning belt are spandex components, and the surface of the positioning belt is U-shaped.
[0009] In one embodiment, a pressure band is fixedly connected to the bottom of the mounting strip, and both the restraining sleeve and the pressure band are polyester elastic fiber components. The pressure band ensures that the mounting strip is tightly attached to the surface of the natural gas pipeline, thereby ensuring that multiple guided wave probes are tightly attached to the surface of the natural gas pipeline.
[0010] In one embodiment, both the limiting block and the ball are silicone rubber components.
[0011] In one embodiment, the first textured hook and loop fastener, the first hook and loop fastener, the second hook and loop fastener, and the second textured hook and loop fastener are all nylon components.
[0012] Beneficial effects
[0013] 1. By using the positioning strap, the first rough-surface hook and loop fastener in combination, the waveguide probe is secured to the surface of the mounting strap, which facilitates the adjustment of the number of waveguide probes on the mounting strap. This allows for adaptive adjustment of the array arrangement of the waveguide probes, ensuring accurate detection of the natural gas pipeline by the waveguide detection probes. By using the second hook and loop fastener in combination, the mounting strap is secured to the surface of the natural gas pipeline, which in turn allows multiple waveguide probes to be tightly attached to the surface of the natural gas pipeline, ensuring accurate detection of the natural gas pipeline.
[0014] 2. By using the limit block and the ball bearing in cooperation, the waveguide probe can be accurately slid into the restraint sleeve, thereby ensuring that the waveguide probe is stably installed on the mounting strip, so that the waveguide probe is stably and tightly attached to the surface of the natural gas pipeline, ensuring accurate detection of the natural gas pipeline. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the adjustment mechanism structure of this utility model;
[0018] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;
[0019] Figure 4 This is a schematic diagram of the positioning band, the second hook and loop fastener, and the pressure band structure of this utility model.
[0020] Figure label:
[0021] 100. Waveguide probe; 200. Adjustment mechanism; 201. Mounting strap; 202. Positioning strap; 203. First rough-surface hook and loop fastener; 204. First hook and loop fastener; 205. Second hook and loop fastener; 206. Second rough-surface hook and loop fastener; 207. Restraint sleeve; 208. Pressure band; 209. Limiting block; 210. Ball bearing. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0023] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.
[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0025] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0026] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification 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 in this specification includes any and all combinations of one or more of the associated listed items.
[0027] The following is combined Figures 1-4This invention describes an array-type guided wave detection probe.
[0028] In one embodiment, an array-type guided wave detection probe includes: a guided wave probe 100; and an adjustment mechanism 200. The adjustment mechanism 200 includes a mounting strap 201 disposed on the surface of the guided wave probe 100. The top of the mounting strap 201 is fixedly connected to equally arranged positioning straps 202, a first hook-and-loop fastener 203, and a second hook-and-loop fastener 205. The bottom of the positioning strap 202 is fixedly connected to a first hook-and-loop fastener 204, and the bottom of the mounting strap 201 is fixedly connected to a second hook-and-loop fastener 206. The mounting strap 201 and the positioning strap 202 are both spandex components. The surface of the positioning strap 202 is U-shaped. The first hook-and-loop fastener 203, the first hook-and-loop fastener 204, the second hook-and-loop fastener 205, and the second hook-and-loop fastener 206 are all nylon components.
[0029] The spandex component's mounting strap 201 and positioning strap 202 possess extremely high elasticity and good resilience, making them resistant to deformation. When it is necessary to assemble or disassemble the waveguide probe 100, the high elasticity of the positioning strap 202 makes the operation more convenient and quicker.
[0030] It should be noted that the guided wave probe 100 typically consists of a flexible substrate, a piezoelectric sensing array, an impedance matching layer, and a signal conditioning module. The piezoelectric sensing array comprises 16×16 independently addressable PZT-5H chips arranged in concentric rings, with the spacing between adjacent rings varying in a λ / 4 gradient. The impedance matching layer has a three-layer structure: a bottom layer of silver paste conductive material, a middle layer of polyimide insulating film, and a top layer of silicone rubber acoustic coupling. The signal conditioning module integrates a preamplifier, a bandpass filter, and an analog-to-digital converter.
[0031] The flexible substrate is made of polydimethylsiloxane, with serpentine circuitry etched onto its surface. Piezoelectric wafers are fixed to the substrate electrodes using conductive adhesive, with each wafer connected to an independent control circuit. The silver paste layer of the impedance matching layer is soldered to the substrate circuitry, and an annular sealing ring is placed at the edge of the silicone rubber layer. The signal conditioning module is connected to the substrate circuitry via an FPC cable, and the module housing features a waterproof aviation connector.
[0032] In this embodiment, when it is necessary to detect internal defects in a natural gas pipeline, an appropriate number of guided wave probes 100 are selected. Multiple guided wave probes 100 are arranged in an orderly manner on the top of the mounting strap 201. The corresponding positioning straps 202 are pulled in sequence to attach the first hook-and-loop fastener 204 to the first rough-surface hook-and-loop fastener 203, so that the guided wave probes 100 are installed on the mounting strap 201. The surface of the natural gas pipeline to be detected is cleaned to remove oil, rust, debris, etc., to ensure good contact between the guided wave probes 100 and the pipeline surface, reducing energy loss and interference during guided wave propagation. An appropriate amount of coupling agent is applied to the top of the guided wave probes 100. The mounting strap 201 is tied to the surface of the natural gas pipeline, so that the second hook-and-loop fastener 205 is attached to the surface of the second rough-surface hook-and-loop fastener 206, so that multiple guided wave probes 100 are tightly attached to the surface of the natural gas pipeline.
[0033] At this point, connect the cables from multiple guided wave probes 100 sequentially to the guided wave detection host, and connect the guided wave detection host to the laptop computer. Use the laptop to set the detection parameters, setting appropriate guided wave excitation parameters such as excitation frequency, pulse width, and gain based on the material, size, and detection purpose of the natural gas pipeline. Select a suitable guided wave mode for detection. Different guided wave modes have different sensitivities to different types of defects. For example, longitudinal guided waves are more sensitive to axial defects in pipelines, while torsional guided waves are more sensitive to circumferential defects.
[0034] The detection equipment is activated, and a guided wave of a specific mode is emitted into the pipeline through the guided wave probe 100. During propagation within the pipeline, if the guided wave encounters a defect, reflection and scattering occur, and some energy returns to the probe. The probe receives the returned guided wave signal and converts it into an electrical signal, which is then transmitted to the detection equipment. The detection equipment processes the received electrical signal through acquisition, amplification, and filtering to remove noise and interference and extract useful signal information. Characteristic parameters of the guided wave signal, such as arrival time, amplitude, and frequency, are recorded for subsequent analysis. By analyzing the characteristics of the guided wave signal, such as the amplitude, phase, and arrival time of the reflected wave, the presence of a defect is determined. Signal processing techniques and algorithms, such as time-domain analysis, frequency-domain analysis, and wavelet transform, are used to improve the accuracy of defect signal identification.
[0035] The distance between the defect and the probe is calculated based on the propagation speed of the guided wave and the arrival time of the reflected wave, thereby determining the location of the defect in the pipeline.
[0036] like Figure 3 As shown, the top of the mounting belt 201 is fixedly connected with equally arranged limiting blocks 209, and one side of the limiting block 209 is rolled with a ball bearing 210. Both the limiting block 209 and the ball bearing 210 are silicone rubber components.
[0037] The limiting block 209 and the ball bearing 210 of the silicone rubber component have good elasticity and flexibility.
[0038] like Figure 2 and Figure 4 As shown, the top of the mounting belt 201 is fixedly connected with equally arranged binding sleeves 207, the surface of the waveguide probe 100 is in contact with the inner wall of the binding sleeves 207, and the bottom of the mounting belt 201 is fixedly connected with a pressure belt 208. Both the binding sleeves 207 and the pressure belt 208 are polyester elastic fiber components.
[0039] The binding sleeve 207 and the pressure belt 208 of the polyester elastic fiber component have high elasticity and good tensile strength.
[0040] Working principle: Slide the waveguide probe 100 into the opposite sides of the two ball bearings 210, so that the waveguide probe 100 is accurately slid into the restraint sleeve 207. Pull the positioning band 202 to stick the first hook-and-loop fastener 204 to the first rough-surface hook-and-loop fastener 203, so that the waveguide probe 100 is bound to the mounting band 201. Clean the surface of the natural gas pipeline inspection area, apply an appropriate amount of coupling agent to the top of the waveguide probe 100, bind the mounting band 201 to the surface of the natural gas pipeline, and slide one side of the mounting band 201 into the inner surface of the pressure band 208, so that the second hook-and-loop fastener 205 is stuck to the surface of the second rough-surface hook-and-loop fastener 206, so that multiple waveguide probes 100 are tightly attached to the surface of the natural gas pipeline.
[0041] It should be noted that the guided wave probe 100 and other devices mentioned above are all devices with relatively mature existing technology. The specific model can be selected according to actual needs. At the same time, the guided wave probe 100 can be powered by the built-in power supply or by the mains power. The specific power supply method should be selected according to the situation, which will not be elaborated here.
[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0043] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.
Claims
1. An array-type guided wave detection probe, characterized in that, include: Waveguide probe (100); Adjustment mechanism (200) includes a mounting band (201) disposed on the surface of the waveguide probe (100). The top of the mounting band (201) is fixedly connected with equally arranged positioning bands (202), a first hook and loop fastener (203) and a second hook and loop fastener (205). The bottom of the positioning band (202) is fixedly connected with a first hook and loop fastener (204), and the bottom of the mounting band (201) is fixedly connected with a second hook and loop fastener (206).
2. The array-type guided wave detection probe according to claim 1, characterized in that, The top of the mounting belt (201) is fixedly connected with equally arranged limiting blocks (209), and a ball bearing (210) is tumbled to one side of the limiting block (209).
3. The array-type guided wave detection probe according to claim 1, characterized in that, The top of the mounting band (201) is fixedly connected with equally arranged binding sleeves (207), and the surface of the waveguide probe (100) contacts the inner wall of the binding sleeves (207).
4. The array-type guided wave detection probe according to claim 1, characterized in that, Both the mounting strip (201) and the positioning strip (202) are spandex components, and the surface of the positioning strip (202) is U-shaped.
5. The array-type guided wave detection probe according to claim 3, characterized in that, The bottom of the mounting belt (201) is fixedly connected to a pressure belt (208), and both the binding sleeve (207) and the pressure belt (208) are polyester elastic fiber components.
6. The array-type guided wave detection probe according to claim 2, characterized in that, Both the limiting block (209) and the ball (210) are silicone rubber components.
7. The array-type guided wave detection probe according to claim 1, characterized in that, The first textured hook and loop fastener (203), the first hook and loop fastener (204), the second hook and loop fastener (205) and the second textured hook and loop fastener (206) are all nylon components.