Joint pipe welding seam phased array pressing assembly

Abstract

The utility model relates to the technical field of ultrasonic phased array nondestructive testing, in particular to a phased array pressing assembly for a welding seam of a connecting pipe. The welding seam detection device comprises a detection device used for detecting a welding seam between a cylinder body and a connecting pipe, the tail end of the detection device is provided with a pressing assembly facing the welding seam, and the pressing assembly comprises a fastening cover plate which is fixed near the welding seam through the detection device; the encoder comprises an encoding sensor and a pulley, and the pulley rolls along the surface of the cylinder along with the detection device; one end of the elastic buffer block is connected with the encoder through a spring, and the other end of the elastic buffer block is an expanded buffer block and abuts against the weld joint; the probe is connected with the encoder through a movable joint, and a plurality of line marks are drawn on the periphery of the connecting pipe. According to the utility model, through improving the structure of the pressing assembly, the automatic detection of the fillet weld on the outer wall of the barrel thick-wall connecting pipe is realized, so that the detection data is more accurately acquired, the detection efficiency is improved, the labor intensity of detection personnel is reduced, and the detection universality is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic phased array nondestructive testing technology, specifically to a phased array clamping assembly for pipe welds. Background Technology

[0002] The thick-walled nozzles of container reactors have complex structures, often with weld overlays on the inner surface, making radiographic inspection difficult, time-consuming, and inefficient. While manual ultrasonic testing can be performed externally, data recording and visual display present challenges. To address these issues, engineers have made efforts, such as the phased array inspection device for low-pressure diaphragm welds in steam turbines disclosed in Chinese patent CN206804602U, which connects the encoder and probe via a spring assembly for efficient and reliable inspection. However, in container reactor nozzle inspection, the curvature variation of the outer wall intersection line makes it difficult for the handheld encoder to move in accordance with national standards. Therefore, tooling improvements to the probe and encoder are needed to adapt to the nozzle curvature, ensuring data acquisition and coupling meet national standards, improving weld inspection efficiency, and simultaneously ensuring the device is easy to operate, portable, and practical to meet production needs. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a phased array clamping assembly for pipe weld seams.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A phased array clamping assembly for a nozzle weld includes a clamping assembly located at the end of a detection device for detecting the weld between a cylinder and a nozzle. The clamping assembly includes:

[0006] The cover plate is fastened in an inverted U-shape and is fixed near the weld by a detection device.

[0007] The encoder, located below the fastening cover, includes an encoding sensor and a pulley. The bottom of the encoding sensor contacts the surface of the cylinder via the pulley, and the pulley rolls along the surface of the cylinder with the detection device.

[0008] The elastic buffer block is rod-shaped, with one end connected to the encoder via a spring, and the other end being an enlarged buffer block that abuts against the weld.

[0009] The probe, connected to the encoder via a movable joint, includes a transmitter and a receiver, and performs phased array detection on the weld seam.

[0010] Several markings are drawn around the nozzle, and the probe is aligned with the markings and positioned towards the weld. The probe rolls along the surface of the cylinder via an encoder.

[0011] This technical solution achieves automated inspection of the fillet welds on the outer wall of thick-walled nozzles in cylinders by improving the structure of the clamping assembly. This results in more accurate data acquisition, avoids data loss and poor coupling, improves inspection efficiency, reduces the workload of inspection personnel, and enhances the versatility of the inspection. Specifically, the inspection device is securely installed near the weld by a fastening cover plate; the encoder is located below the fastening cover plate, with its pulley in close contact with the cylinder surface and rolling as the inspection device moves, ensuring the continuity of the inspection process. An coded sensor also accurately records the probe's movement trajectory; one end of an elastic buffer block is connected to the encoder via a spring, while the other end abuts against the weld, effectively absorbing vibrations and impacts during the inspection process and ensuring stable contact between the probe and the weld, thereby improving inspection accuracy; the probe is connected to the encoder via a movable joint, allowing for flexible adjustment according to the different shapes and sizes of the nozzles; the transmitter and receiver on the probe can perform phased array inspection of the weld, accurately judging the quality of the weld by receiving the reflected ultrasonic signals.

[0012] In addition, the phased array clamping assembly for the weld seam of the pipe according to the present invention also has the following additional technical features:

[0013] According to one embodiment of the present invention, the signal lines of the encoder and the probe are connected to the detection device through a fastening cover plate.

[0014] This technical solution ensures the stability of signal transmission by connecting the signal lines of the encoder and probe to the fastening cover and detection device.

[0015] According to one embodiment of the present invention, the pulleys are provided in four sets, which are located at the four corners of the encoder.

[0016] This technical solution improves the rolling stability and balance of the component on the cylinder surface by setting pulleys at the four corners of the encoder.

[0017] According to one embodiment of the present invention, the elastic buffer block is further provided with an adjusting block located at the end of the spring. The screwing distance of the adjusting block determines the pressure between the elastic buffer block and the weld, so as to adapt to the curvature of the outer intersection line of pipes with different diameters.

[0018] This technical solution adjusts the pressure between the elastic buffer block and the connecting pipe by setting an adjustment block at the end of the spring, so as to adapt to the curvature of the outer intersection line of connecting pipes with different diameters.

[0019] According to one embodiment of the present invention, the buffer block is a wear-resistant nylon block.

[0020] This technical solution improves the durability and service life of components by using wear-resistant nylon blocks as buffer blocks.

[0021] According to one embodiment of the present invention, the movable joint is composed of several sub-joints, and the relative position between adjacent sub-joints determines the extension length and orientation of the probe.

[0022] This technical solution uses a movable joint composed of several sub-joints to achieve flexible adjustment of the probe's extension length and orientation to meet different testing needs.

[0023] Compared with the prior art, this utility model has the following advantages:

[0024] By improving the structure of the clamping assembly, automated inspection of the fillet welds on the outer wall of the thick-walled nozzle of the cylinder can be achieved, thereby collecting inspection data more accurately, avoiding data loss and poor coupling, improving inspection efficiency, reducing the labor intensity of inspection personnel, and enhancing the versatility of the inspection. Attached Figure Description

[0025] Figure 1 This is a diagram showing the usage state of this utility model.

[0026] Figure 2 This is a schematic diagram of the structure of this utility model.

[0027] In the diagram: 1. Cylinder; 2. Connecting pipe; 3. Weld; 4. Detection device; 5. Clamping assembly; 51. Fastening cover plate; 52. Encoder; 53. Movable joint; 54. Elastic buffer block; 55. Probe; 56. Spring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1

[0030] like Figure 1 and Figure 2 As shown, this embodiment provides a phased array clamping assembly for a pipe weld, including a clamping assembly 5. The clamping assembly 5 is located at the end of a detection device 4 used to detect the weld 3 between the cylinder 1 and the pipe 2. The clamping assembly 5 includes:

[0031] The fastening cover plate 51 is arranged in an inverted U-shape and is fixed near the weld 3 by the detection device 4;

[0032] The encoder 52, located below the fastening cover plate 51, includes an encoding sensor and a pulley. The bottom of the encoding sensor contacts the surface of the cylinder 1 through the pulley, and the pulley rolls along the surface of the cylinder 1 with the detection device 4.

[0033] The elastic buffer block 54 is rod-shaped, with one end connected to the encoder 52 via a spring 56, and the other end being an enlarged buffer block that abuts against the weld 3.

[0034] The probe 55, connected to the encoder 52 via the movable joint 53, includes a transmitter and a receiver, and performs phased array detection on the weld 3.

[0035] Among them, several line markings are drawn around the perimeter of the nozzle 2, and the probe 55 is aligned with the line markings and set towards the weld 3; the probe 55 rolls along the surface of the cylinder 1 via the encoder 52.

[0036] like Figure 1 and Figure 2 As shown, this technical solution improves the structure of the clamping component 5 to achieve automated detection of the fillet weld 3 on the outer wall of the thick-walled nozzle 2 of the cylinder 1, thereby collecting detection data more accurately, avoiding data loss and poor coupling, improving detection efficiency, reducing the labor intensity of detection personnel, and enhancing the versatility of the detection. Specifically, the detection device 4 is securely installed near the weld 3 by the fastening cover plate 51; the encoder 52 is located below the fastening cover plate 51, its pulley is in close contact with the surface of the cylinder 1, and it rolls as the detection device 4 moves to ensure the continuity of the detection process. It also accurately records the movement trajectory of the probe 55 through the coding sensor; one end of the elastic buffer block 54 is connected to the encoder 52 through the spring 56, and the other end is in contact with the weld 3, effectively absorbing the vibration and impact during the detection process, ensuring stable contact between the probe 55 and the weld 3, thereby improving the accuracy of the detection; the probe 55 is connected to the encoder 52 through the movable joint 53, and can be flexibly adjusted according to the different shapes and sizes of the connecting pipe 2; the transmitter and receiver on the probe 55 can perform phased array detection on the weld 3, and accurately judge the quality of the weld 3 by receiving the reflected ultrasonic signals.

[0037] In addition, the phased array clamping assembly for the weld seam of the pipe according to the present invention also has the following additional technical features:

[0038] According to one embodiment of the present invention, the signal lines of the encoder 52 and the probe 55 are connected to the detection device 4 through the fastening cover plate 51.

[0039] This technical solution ensures the stability of signal transmission by connecting the signal lines of encoder 52 and probe 55 to fastening cover plate 51 and detection device 4.

[0040] According to one embodiment of the present invention, the pulleys are provided in four sets, which are located at the four corners of the encoder 52 respectively.

[0041] This technical solution improves the rolling stability and balance of the component on the surface of the cylinder 1 by setting pulleys at the four corners of the encoder 52.

[0042] According to one embodiment of the present invention, the elastic buffer block 54 is further provided with an adjustment block located at the end of the spring 56. The screwing distance of the adjustment block determines the pressure between the elastic buffer block 54 and the weld 3, so as to adapt to the curvature of the outer intersection line of the pipe 2 with different diameters.

[0043] This technical solution adjusts the pressure between the elastic buffer block 54 and the connecting pipe 2 by setting an adjustment block at the end of the spring 56, so as to adapt to the curvature of the outer intersection line of the connecting pipe 2 with different diameters.

[0044] According to one embodiment of the present invention, the buffer block is a wear-resistant nylon block.

[0045] This technical solution improves the durability and service life of components by using wear-resistant nylon blocks as buffer blocks.

[0046] According to one embodiment of the present invention, the movable joint 53 is composed of several sub-joints, and the relative position between adjacent sub-joints determines the extension length and orientation of the probe 55.

[0047] This technical solution uses a movable joint 53 composed of several sub-joints to achieve flexible adjustment of the extension length and orientation of the probe 55, so as to meet different detection needs.

[0048] The usage process of the above embodiments is as follows:

[0049] like Figure 1 and Figure 2As shown, the detection device 4 is stably installed near the weld 3 by the fastening cover plate 51; then, the encoder 52 is located below the fastening cover plate 51, its pulley is in close contact with the surface of the cylinder 1, and rolls smoothly along the surface of the cylinder 1 as the detection device 4 moves; the contact between the encoder 52 and the cylinder 1 through the pulley not only ensures the continuity of the detection process, but also uses the coding sensor to accurately record the movement trajectory of the probe 55; at the same time, one end of the elastic buffer block 54 is connected to the encoder 52 through the spring 56, and the other end abuts against the weld 3; this design effectively absorbs the vibration and impact during the detection process, ensuring stable contact between the probe 55 and the weld 3, thereby improving the accuracy of the detection; the probe 55 is connected to the encoder 52 through the movable joint 53, which... The movable joint 53 consists of several sub-joints, which flexibly adjust the extension length and orientation of the probe 55 according to the different shapes and sizes of the connecting pipe 2. The transmitter and receiver on the probe 55 perform phased array detection on the weld 3 and receive the reflected ultrasonic signals to accurately judge the quality of the weld 3. In addition, the signal lines of the encoder 52 and the probe 55 are connected to the detection device 4 through the fastening cover plate 51 to ensure the stability of signal transmission. The four sets of pulleys improve the rolling stability and balance of the component on the surface of the cylinder 1. The setting of the adjusting block at the end of the spring 56 realizes the adjustment of the pressure between the elastic buffer block 54 and the connecting pipe 2 to adapt to the curvature of the outer intersection line of the connecting pipe 2 with different diameters. The wear-resistant nylon block, as a buffer block, improves the durability and service life of the component.

[0050] It should be noted that this utility model only improves the hardware structure and does not improve the software, thus meeting the protection criteria for utility models.

[0051] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, it is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the present invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the scope of the claims.

Claims

1. A nozzle weld phase array compacting assembly comprising a compacting assembly (5) located at the end of a detection device (4) for detecting a weld (3) between a shell (1) and a nozzle (2), characterized in that, The pressing assembly (5) comprises: a fastening cover plate (51) in inverted U shape, which is fixed to the vicinity of the weld (3) by the detection device (4); an encoder (52) below the fastening cover plate (51), which comprises an encoding sensor and a pulley, the bottom of the encoding sensor being in contact with the surface of the cylinder (1) through the pulley, and the pulley rolling along the surface of the cylinder (1) with the detection device (4); an elastic buffer block (54) in rod shape, one end of which is connected to the encoder (52) through a spring (56), and the other end of which is in contact with the weld (3) through an enlarged buffer block; a probe (55) connected to the encoder (52) through a movable joint (53), which comprises a transmitter and a receiver, and performs phased array detection on the weld (3); wherein a plurality of along-line marks are drawn on the circumference of the connecting pipe (2), the probe (55) is aligned with the along-line marks and is arranged towards the weld (3); and the probe (55) rolls along the surface of the cylinder (1) through the encoder (52).

2. The nozzle weld seam phased array hold down assembly of claim 1, wherein, The signal lines of the encoder (52) and the probe (55) are connected to the detection device (4) through the fastening cover plate (51).

3. The adapter weld seam phased array hold down assembly of claim 1, wherein, The pulley is provided with four groups, respectively located at the four end corners of the encoder (52).

4. The adapter weld seam phased array hold down assembly of claim 1 wherein, The elastic buffer block (54) is further provided with an adjusting block at the end of the spring (56), the rotation distance of the adjusting block determines the pressure between the elastic buffer block (54) and the weld (3), so as to adapt to the outer relative line curvature of the connecting pipe (2) with different diameters.

5. The nozzle weld phase array hold-down assembly of claim 1 or 4, wherein, The buffer block is a wear-resistant nylon block.

6. The adapter weld seam phased array hold down assembly of claim 1 wherein, The movable joint (53) is composed of a plurality of sub-joints, and the relative positions between adjacent sub-joints determine the extension length and direction of the probe (55).

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