Small-diameter tube PAUT scanner

Abstract

The utility model relates to the technical field of scanners, and provides a small-diameter tube PAUT scanner which comprises an installation part used for being arranged on the outer wall of a tube in a sleeving mode. The connecting band is arranged on the mounting piece, one end of the connecting band is provided with a connecting part, the other end of the connecting band is provided with a connected part, and the connected part is connected with the connecting part and used for sleeving the mounting piece on the outer wall of the pipe; the scanning part is arranged on the mounting part and used for scanning the outer wall of the pipe. By means of the technical scheme, the technical problems that in the prior art, conventional ultrasonic detection equipment is inconvenient to install and poor in stability are solved.

Description

Technical Field

[0001] Embodiments of this disclosure relate to the field of scanner technology, and more specifically, to a small-diameter pipe PAUT scanner. Background Technology

[0002] Small-diameter, thin-walled pipes are prone to defects and leaks. Currently, conventional small-diameter pipe inspection mainly employs radiographic testing and conventional ultrasonic testing. Radiographic testing poses risks of ionizing radiation, has a long testing cycle, requires site clearing and isolation, and cannot be performed concurrently with other inspection and maintenance work. While conventional ultrasonic testing can mitigate some of these issues, its applicability is limited by the welding method of plug welds. Small-diameter pipes are characterized by their small diameter, high curvature, thin wall thickness, and complex installation locations, making it inconvenient to use motor-driven automated scanning. Furthermore, conventional ultrasonic testing equipment is inconvenient to install and has poor stability. Utility Model Content

[0003] To overcome the above-mentioned defects, the embodiments of this disclosure provide a small-diameter pipe PAUT scanner, which solves the technical problems of inconvenient installation and poor stability of conventional ultrasonic testing equipment in the prior art.

[0004] According to one aspect, at least one embodiment of this disclosure provides a small-diameter pipe PAUT scanner for scanning the outer wall of a pipe, comprising:

[0005] Mounting components are used to be fitted onto the outer wall of the pipe;

[0006] A connecting strip is provided on the mounting component. One end of the connecting strip has a connecting part and the other end has a connected part. The connected part and the connecting part are configured to be connected, and the mounting component is used to fit the mounting component onto the outer wall of the pipe.

[0007] A scanning element is disposed on the mounting element, and the scanning element is used to scan the outer wall of the pipe.

[0008] For example, in a small-diameter pipe PAUT scanner provided in at least one embodiment of this disclosure, the connecting band is elastic.

[0009] For example, in a small-diameter pipe PAUT scanner provided in at least one embodiment of this disclosure, the scanning element includes:

[0010] A wedge block having an arc-shaped surface is movably disposed on the mounting component, and the wedge block is configured such that, after being moved, the arc-shaped surface is used to engage or disengage with the outer wall of the pipe;

[0011] The probe is mounted on the wedge.

[0012] For example, in a small-diameter pipe PAUT scanner provided in at least one embodiment of this disclosure, the scanning element further includes:

[0013] A mounting bracket is provided on the mounting component, and the wedge is movably mounted on the mounting bracket. The wedge is movably mounted on the mounting component via the mounting bracket.

[0014] The encoder is mounted on the mounting bracket.

[0015] For example, in at least one embodiment of this disclosure, a small-diameter pipe PAUT scanner further includes:

[0016] A wear-resistant plate is detachably mounted on the mounting bracket and is used to abut against the outer wall of the tube.

[0017] For example, in a small-diameter pipe PAUT scanner provided in at least one embodiment of this disclosure, the connecting strap is detachably disposed on the mounting member, and the small-diameter pipe PAUT scanner further includes:

[0018] A plurality of pressure plates are disposed on the mounting component and located on the side of the mounting component away from the outer wall of the pipe. An installation gap is formed between the pressure plates and the mounting component. The connecting strip is disposed within the installation gap and is disposed on the mounting component through the pressure plates.

[0019] For example, in at least one embodiment of this disclosure, a small-diameter pipe PAUT scanner is provided, wherein there are a plurality of mounting members and a connecting strip, the plurality of mounting members are arranged at intervals along the pipe axis, and the mounting members have mounting holes; the small-diameter pipe PAUT scanner further includes:

[0020] A connecting rod is detachably disposed within the mounting hole, and the connecting rod is used to connect two adjacent mounting components.

[0021] For example, in a small-diameter pipe PAUT scanner provided in at least one embodiment of this disclosure, the connecting rod has a scale surface with scale lines.

[0022] For example, in at least one embodiment of the present disclosure, a small-diameter pipe PAUT scanner is provided, wherein the scale surface is a plane, and the small-diameter pipe PAUT scanner further includes:

[0023] A push rod, threaded onto the mounting component, is used to press the graduated surface after rotation.

[0024] For example, in a small-diameter pipe PAUT scanner provided in at least one embodiment of this disclosure, the mounting component includes:

[0025] The chain link has several links, adjacent links are rotatably connected to each other, the mounting hole is located on the chain link, the mounting bracket, the wear-resistant plate and the pressure plate are all disposed on the chain link, and the push rod is threaded on the chain link;

[0026] A rotating wheel is rotatably mounted on the chain link, and the chain link rotates relative to the tube via the rotating wheel.

[0027] The beneficial effects of the embodiments disclosed herein are as follows:

[0028] This disclosure enables the scanning of the outer wall of small-diameter pipes. The mounting components are fixed to the outer wall of the pipe using connecting straps, ensuring the stability of the device. Due to the presence of the connecting straps, the circumference of the circle formed by the mounting components can be smaller than the circumference of the outer wall of the pipe, saving on the manufacturing cost of the mounting components. The scanning component can comprehensively scan the outer wall of the pipe, improving the comprehensiveness and accuracy of the inspection. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of a small-diameter pipe PAUT scanner in one embodiment of this disclosure;

[0031] Figure 2 for Figure 1 A schematic diagram of the connecting strip structure in the embodiment;

[0032] Figure 3 for Figure 1 A schematic diagram of the mounting bracket in the embodiment;

[0033] Figure 4 for Figure 1 The embodiment is a schematic diagram of the arrangement of multiple mounting components.

[0034] In the diagram: 1. Mounting component, 2. Connecting belt, 21. Connecting part, 22. Connected part, 3. Scanning component, 11. Chain link, 12. Rotary wheel, 31. Mounting bracket, 32. Encoder, 33. Probe, 312. Wedge, 313. Arc-shaped surface, 4. Wear-resistant plate, 5. Pressure plate, 51. Mounting gap, 111. Mounting hole, 6. Connecting rod, 61. Scale surface, 7. Top rod. Detailed Implementation

[0035] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0036] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0037] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0038] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature 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 includes the first feature 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.

[0039] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 disclosure.

[0040] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0041] like Figures 1-2As shown, a small-diameter pipe PAUT scanner is provided in one embodiment of the present disclosure for scanning the outer wall of a pipe. The mounting part 1 is used to be fitted onto the outer wall of the pipe. The connecting band 2 is provided on the mounting part 1. One end of the connecting band 2 has a connecting part 21 and the other end has a connected part 22. The connected part 22 and the connecting part 21 are configured to be connected and used to fit the mounting part 1 onto the outer wall of the pipe. The scanning part 3 is provided on the mounting part 1 and is used to scan the outer wall of the pipe.

[0042] For example, such as Figure 1 As shown, in use, first separate the connecting part 21 and the connected part 22 of the connecting strap 2, and then put the mounting piece 1 onto the outer wall of the small-diameter pipe. Then connect the connecting part 21 and the connected part 22 of the connecting strap 2 so that the mounting piece 1 is fitted onto the outer wall of the pipe. After installation, the scanning piece 3 performs a comprehensive scan of the outer wall of the pipe.

[0043] This disclosure enables the scanning of the outer wall of a small-diameter pipe. The mounting component 1 is fixed to the outer wall of the pipe by the connecting strap 2, ensuring the stability of the device. Due to the presence of the connecting strap 2, the circumference of the circle formed by the mounting component 1 can be smaller than the circumference of the outer wall of the pipe, saving the manufacturing cost of the mounting component 1.

[0044] In some examples, the connecting band 2 is elastic.

[0045] For example, such as Figure 2 As shown, due to the elasticity of the connecting band 2, when fitting the mounting piece 1 onto the outer wall of the pipe, the connecting band 2 can be stretched first, allowing it to easily pass around the pipe. Then, the connecting part 21 and the connected part 22 of the connecting band 2 are connected, facilitating the fitting of the mounting piece 1 onto the outer wall of the pipe. The connecting band 2 expands and contracts under elasticity, tightly fitting the mounting piece 1 onto the outer wall of the pipe. During the rotation of the mounting piece 1 along the axis of the pipe, the elastic connecting band 2 can adapt to the unevenness of the pipe surface and the slight displacement changes during rotation.

[0046] The elastic connecting strip 2 makes the installation process more convenient and can adapt to small-diameter pipes of different diameters, improving the versatility of the device. Simultaneously, during the scanning process, the elastic connecting strip 2 ensures that the mounting component 1 remains tightly fitted to the outer wall of the pipe, preventing loosening and further improving the stability and accuracy of the scanning. This invention has a simple structure, facilitates pipe diameter changes, and is easy to assemble and disassemble.

[0047] In some examples, the wedge 312 has an arcuate surface 313, and the wedge 312 is movably mounted on the mounting member 1. The wedge 312 is configured such that, after being moved, the arcuate surface 313 is used to engage or disengage with the outer wall of the pipe; the probe 33 is mounted on the wedge 312. The mounting bracket 31 is rotatably mounted on the mounting member 1, and the wedge 312 is movably mounted on the mounting bracket 31 via the mounting bracket 31; the encoder 32 is rotatably mounted on the mounting bracket 31, and the mounting bracket 31 is located between the mounting member 1 and the encoder 32.

[0048] For example, such as Figure 1 As shown, when unfolded, the mounting component 1, mounting bracket 31, and encoder 32 form a long straight chain. The mounting component 1 is fitted onto the outer wall of the pipe and rotates along the pipe axis. When the mounting component 1 rotates along the pipe axis, it drives the mounting bracket 31 to rotate. The rotation of the mounting bracket 31 drives the encoder 32 to rotate, and the encoder 32 can record the rotation angle and position information. At the same time, the probe 33 on the mounting bracket 31 scans the outer wall of the pipe as it rotates and feeds back the scanned information.

[0049] The encoder 32 is configured to accurately record the rotation information of the mounting component 1. Combined with the scanning data from the probe 33, the location and angle of defects on the outer wall of the pipe can be accurately determined, improving the accuracy and reliability of the inspection. The rotational configuration of the mounting bracket 31 allows the probe 33 to be adjusted in angle as needed, better adapting to different inspection requirements. One side of the mounting bracket 31 is connected to the chain link of the encoder 32, and the other side is connected to the number of pulley mounting components 1 corresponding to the pipe diameter. The number of mounting components 1 can be quickly increased or decreased to adapt to different pipe diameters. The mounting components 1 are 3D printed.

[0050] The wedge 312 is movable and mounted on the mounting bracket 31, and the probe 33 is mounted on the wedge 312. The purpose of moving the wedge 312 is to ensure that the arc-shaped surface 313 fits well with the outer wall of the pipe and is not affected by the mounting bracket 31. The diameter of the arc-shaped surface 313 is the same as the diameter of the outer wall of the pipe, and the arc-shaped surface 313 is completely fitted to the outer wall of the pipe. When inspecting the outer wall of different pipe diameters, only different wedges 312 need to be replaced. When it is necessary to scan the outer wall of the pipe, the wedge 312 is moved so that the arc-shaped surface 313 of the wedge 312 fits with the outer wall of the pipe. In this way, the probe 33 can improve the scanning sensitivity. Alternatively, the wedge 312 can rotate on the mounting bracket 31, with the rotation axis of the wedge 312 and the connecting rotation axis set in a direction perpendicular to each other. When the mounting part 1 surrounds the outer wall of the pipe, the wedge 312 is adjusted so that the arc-shaped surface 313 of the wedge 312 always fits with the outer wall of the pipe. Threaded holes can be designed on the mounting bracket 31, and the rotating shaft of the wedge block 312 can be threaded into the threaded holes for fixation. The wedge block 312 is rotatably mounted on the rotating shaft. The probe 33 is fixed to the wedge block 312 with screws. In use, first install the corresponding number of mounting parts 1, the corresponding radius of the wedge block 312, and the corresponding length of elastic connecting strip 2 according to the pipe diameter. Then simply wrap it around the pipe and tighten the connecting strip 2 to stick it in place.

[0051] The arc-shaped surface 313 of the wedge 312 allows for better contact with the outer wall of the tube, improving scanning accuracy. The movable design of the wedge 312 makes the contact and release operations of the probe 33 more convenient, enabling rapid adaptation to different testing scenarios.

[0052] In some examples, the wear-resistant plate 4 is detachably mounted on the mounting bracket 31, and the wear-resistant plate 4 is used to abut against the outer wall of the tube.

[0053] For example, such as Figure 3 As shown, the mounting bracket 31 is made of copper. During operation, the mounting bracket 31 will wear down due to prolonged friction with the pipe, affecting overall operational stability. The wear-resistant plate 4 is detachably mounted on the mounting bracket 31. When the mounting component 1 rotates along the pipe axis for inspection, the wear-resistant plate 4 abuts against the outer wall of the pipe. When the wear-resistant plate 4 shows wear, it can be easily removed and replaced.

[0054] The wear-resistant pad 4 protects the mounting bracket 31, reduces direct friction between the mounting bracket 31 and the outer wall of the pipe, and extends the service life of the mounting bracket 31. At the same time, the detachable design makes replacing the wear-resistant pad 4 more convenient and reduces maintenance costs.

[0055] In some examples, there are several pressure plates 5, which are disposed on the mounting member 1 and located on the side of the mounting member 1 away from the outer wall of the pipe. An installation gap 51 is formed between the pressure plates 5 and the mounting member 1. The connecting strip 2 is disposed in the installation gap 51 and is disposed on the mounting member 1 through the pressure plates 5.

[0056] For example, such as Figure 3 As shown, several pressure plates 5 are arranged on the side of the mounting component 1 away from the outer wall of the pipe, forming an installation gap 51 between the pressure plates 5 and the mounting component 1. The connecting strap 2 is placed in the installation gap 51, and the pressure plates 5 fix the connecting strap 2 to the mounting component 1. In this way, the connecting strap 2 is stably connected to the mounting component 1 and moves synchronously with the rotation of the mounting component 1. When the elasticity of the mounting strap fails, the mounting strap can be pulled out from the installation gap 51 for easy replacement.

[0057] In some examples, there are multiple mounting parts 1 and multiple connecting strips 2, with the mounting parts 1 spaced apart along the pipe axis. Each mounting part 1 has a mounting hole 111 and a connecting rod 6, which is detachably disposed in the mounting hole 111. The connecting rod 6 is used to connect two adjacent mounting parts 1.

[0058] For example, such as Figure 4 As shown, the connecting rod 6 is inserted into the mounting holes 111 of two adjacent mounting parts 1, connecting the adjacent mounting parts 1. This allows multiple mounting parts 1 to work together, expanding the scanning range. In poor working conditions, only one mounting part 1 and connecting strap 2 are used, designing several mounting parts 1 as separate units. Connecting multiple mounting parts 1 via the connecting rod 6 increases the scanning range and improves detection efficiency. The detachable connecting rod 6 design allows adjustment of the number and spacing of mounting parts 1 according to actual needs, improving the flexibility and applicability of the device.

[0059] In some examples, the connecting rod 6 has a scale surface 61 with scale lines.

[0060] For example, such as Figure 4 As shown, the connecting rod 6 has a graduated surface 61 with graduated lines. When installing the connecting rod 6, the distance between two adjacent mounting parts 1 can be accurately determined according to the graduated lines, ensuring that the mounting parts 1 are neatly arranged and evenly spaced. The graduated surface 61 has a blank area without graduated lines; this blank area represents the minimum distance between two mounting parts 1.

[0061] During testing, the wedge 312 needs to rotate along the outer wall of the pipe on the side of the weld (i.e., the weld and the wedge 312 are arranged at intervals along the axial direction of the pipe). The probe 33 is used to detect the state of the weld. Therefore, there are distance requirements between the wedge 312 and the weld. The distance is different for different welds. The setting of the scale line makes the installation of the mounting part 1 more accurate and can ensure that the spacing between adjacent mounting parts 1 meets the testing requirements.

[0062] In some examples, the scale surface 61 is a plane, and the push rod 7 is threaded onto the mounting part 1. After the push rod 7 is rotated, it is used to press the scale surface 61.

[0063] For example, such as Figure 4 As shown, the scale surface 61 is flat, and the push rod 7 is threaded onto the mounting part 1. After the connecting rod 6 is inserted into the mounting hole 111 and adjusted in position, the push rod 7 is rotated to press against the scale surface 61. Through the pressing of the push rod 7, the connecting rod 6 is fixed to the mounting part 1, preventing the connecting rod 6 from loosening during use.

[0064] The top rod 7 allows for easy fixing of the connecting rod 6 to the mounting component 1, ensuring the stability of the connection between the connecting rod 6 and the mounting component 1. Simultaneously, by pressing the graduated surface 61, the position of the connecting rod 6 can be further fine-tuned, improving installation accuracy. Furthermore, designing the graduated surface 61 as a flat surface increases the pressing area between the top rod 7 and the graduated surface 61, enhancing the connection's tightness.

[0065] In some examples, there are several links 11, adjacent links 11 are rotatably connected to each other, mounting holes 111 are located on links 11, mounting brackets 31, wear-resistant plates 4 and pressure plates 5 are all set on links 1, and push rods 7 are threaded on links 1; rotating wheels 12 are rotatably set on links 11, and several rotating wheels 12 are rotatably set on each link 11, and links 11 rotate relative to the tube through rotating wheels 12.

[0066] For example, such as Figure 3 As shown, an installation component 1 is composed of several chain links 11 that are rotatably connected to each other, and these chain links 11 are wrapped around the outer wall of the pipe. Each chain link 11 has several rotating wheels 12 rotatably mounted on it. When the installation component 1 needs to rotate along the pipe's axis, the rotating wheels 12 contact the outer wall of the pipe and roll, driving the chain links 11 to rotate, thus enabling the entire installation component 1 to rotate smoothly along the pipe's axis. A scanning element 3 is mounted on the chain links 11 and scans the outer wall of the pipe as the chain links 11 rotate.

[0067] The design of link 11 and wheel 12 allows the mounting component 1 to wrap around the outer wall of the pipe. The mutual rotational connection of link 11 can accommodate small-diameter pipes of different shapes, improving the adaptability of the device. It can also form a circle when in use and a straight chain when not in use, making it easy to store. The rolling of wheel 12 reduces friction between the mounting component 1 and the outer wall of the pipe, reduces rotational resistance, and extends the service life of the device.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A small diameter tube PAUT scanner for scanning the outside wall of a tube, characterized by, The utility model relates to a kind of small-diameter pipe PAUT scanners, including: Mounting piece (1) for being sleeved on the outer wall of the pipe; Connecting band (2) is arranged on the mounting piece (1), one end of the connecting band (2) has connecting part (21), the other end has connected part (22), the connected part (22) is configured to be connected with the connecting part (21), for the mounting piece (1) is sleeved on the outer wall of the pipe; Scanning piece (3) is arranged on the mounting piece (1), and the scanning piece (3) is used to scan the outer wall of the pipe.

2. A small diameter PAUT scanner according to claim 1, wherein, The connecting band (2) has elasticity.

3. A small diameter PAUT scanner according to claim 1 wherein, The scanning piece (3) includes: Wedge (312) has arc surface (313), the wedge (312) is movably arranged on the mounting piece (1), and the wedge (312) is configured to be moved, and the arc surface (313) is used to be attached or cancelled with the outer wall of the pipe; Probe (33) is arranged on the wedge (312).

4. A small diameter PAUT scanner according to claim 3 wherein, The scanning piece (3) further includes: Mounting bracket (31) is arranged on the mounting piece (1), the wedge (312) is movably arranged on the mounting bracket (31), and the wedge (312) is movably arranged on the mounting piece (1) by the mounting bracket (31); Encoder (32) is arranged on the mounting bracket (31).

5. A small diameter PAUT scanner according to claim 4 wherein, The small-diameter pipe PAUT scanner further includes: Wear plate (4) is detachably arranged on the mounting bracket (31), and the wear plate (4) is used to abut with the outer wall of the pipe.

6. A small diameter PAUT scanner according to claim 5 wherein, The connecting band (2) is detachably arranged on the mounting piece (1), and the small-diameter pipe PAUT scanner further includes: Platen (5) has several, arranged on the mounting piece (1), and located on the side of the mounting piece (1) away from the outer wall of the pipe, the platen (5) and the mounting piece (1) form installation gap (51) between, the connecting band (2) is arranged in the installation gap (51), and the connecting band (2) is arranged on the mounting piece (1) by the platen (5).

7. A small diameter PAUT scanner according to claim 6 wherein, The mounting piece (1) and the connecting band (2) have several, several mounting pieces (1) are arranged along the pipe axial direction, the mounting piece (1) has mounting hole (111), and the small-diameter pipe PAUT scanner further includes: Connecting rod (6) is detachably arranged in the mounting hole (111), and the connecting rod (6) is used to connect two adjacent mounting pieces (1).

8. A small diameter PAUT scanner according to claim 7 wherein, The connecting rod (6) has scale surface (61), and the scale surface (61) has scale line.

9. A small diameter PAUT scanner according to claim 8 wherein, The scale surface (61) is a plane, and the small-diameter pipe PAUT scanner further includes: Jackscrew (7) is threadedly arranged on the mounting piece (1), and the jackscrew (7) is used to extrude the scale surface (61) after rotation.

10. A small diameter PAUT scanner according to claim 9 wherein, The mounting piece (1) includes: The chain link (11) has a plurality of chain links (11) which are rotatably connected with each other, the mounting hole (111) is located on the chain link (11), the mounting frame (31), the wear-resistant sheet (4) and the pressing plate (5) are arranged on the chain link (11), and the top rod (7) is threadedly arranged on the chain link (11); The rotating wheel (12) is rotatably arranged on the chain link (11), and the chain link (11) is relatively rotated with the pipe through the rotating wheel (12).

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