Weld joint detection device for pressure vessel

Abstract

The utility model relates to a weld seam detection device for a pressure vessel, which comprises a bearing mechanism, an adjusting mechanism is arranged in the bearing mechanism, a flaw detection mechanism is arranged at the output end of the adjusting mechanism, the flaw detection mechanism comprises an ultrasonic probe and a connecting seat, the ultrasonic probe is fixedly arranged at the output end of the adjusting mechanism, and the connecting seat is connected with the ultrasonic probe. The connecting seat is fixedly installed at the output end of the adjusting mechanism, an adjusting plate is hinged to the left side of the connecting seat, a positioning shaft is fixedly installed on the right side of the connecting seat, the positioning shaft penetrates through and extends to the right side of the adjusting plate, an adjusting screw sleeve is installed on the outer portion of the positioning shaft in a threaded mode, and a storage box is detachably installed at the bottom of the adjusting plate. According to the welding seam detection device for the pressure container, through the arrangement of the bearing mechanism, the adjusting mechanism and the flaw detection mechanism, the pressure container can be subjected to automatic nondestructive detection quickly, the manual flaw detection intensity is reduced, and the welding seam nondestructive detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of weld detection, in particular to a weld detection device for a pressure vessel. Background Art

[0002] Pressure vessel weld inspection is an important part of ensuring the safe operation of pressure vessels. Its main purpose is to check the quality of the welds, ensure that the welds are free of defects, can withstand the working pressure, and prevent safety accidents such as leakage and rupture. Non-destructive testing technologies include radiographic testing, ultrasonic testing, and magnetic particle testing. Currently, ultrasonic testing is mostly used for pressure vessel weld inspection, which can quickly detect buried defects inside the welds and cracks on the inner surface of the pressure vessel welds.

[0003] In the process of implementing this application, the inventors found that there are at least the following problems in this technology. Existing ultrasonic flaw detectors are mostly manual fitting flaw detection, and need to be used with coupling agent during flaw detection. However, pressure vessels are mostly large in size. During the flaw detection process, the application of coupling agent and manual flaw detection steps are relatively cumbersome, which not only increases the labor intensity but also has low efficiency. Therefore, a weld detection device for pressure vessels is proposed to solve the above problems. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a weld detection device for pressure vessels, which has the advantages of rapid and automatic detection, and solves the problem that the existing ultrasonic flaw detector is not convenient for detecting large-volume pressure vessels.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a weld inspection device for a pressure vessel, comprising a carrying mechanism, an adjusting mechanism disposed inside the carrying mechanism, and a flaw detection mechanism disposed at an output end of the adjusting mechanism;

[0006] The flaw detection mechanism includes an ultrasonic probe and a connecting seat, the ultrasonic probe is fixedly installed at the output end of the adjustment mechanism, the connecting seat is fixedly installed at the output end of the adjustment mechanism, an adjustment plate is hinged on the left side of the connecting seat, a positioning shaft is fixedly installed on the right side of the connecting seat, the positioning shaft passes through and extends to the right side of the adjustment plate, an adjusting screw sleeve is installed on the external thread of the positioning shaft, a storage box is detachably installed on the bottom of the adjustment plate, a feeding roller is rotatably installed on the bottom of the storage box, and an adsorption sponge piece is fixedly installed on the outside of the feeding roller.

[0007] Furthermore, the supporting mechanism includes a base, linear slide rails are fixedly installed on the left and right ends of the top of the base, a linear motor is fixedly installed on the top of the base, a carrier plate fixedly connected to the output end of the linear slide rail is fixedly installed on the output end of the linear motor, and a plurality of self-adjusting roller frames are fixedly installed on the top of the carrier plate.

[0008] Furthermore, the adjustment mechanism includes a bracket, which is fixedly mounted on the top front end of the base, and an adjusting cylinder is fixedly mounted on the top of the bracket, and the adjusting cylinder passes through and extends to the interior of the bracket, and the output end of the adjusting cylinder is fixedly mounted with a supporting frame, and two positioning cylinders are fixedly mounted inside the supporting frame, and the output end of the positioning cylinder is fixedly mounted with a limiting plate.

[0009] Furthermore, the ultrasonic probe is fixedly mounted on the bottom of the carrier, the connecting seat is fixedly mounted on the front of the carrier, and a through hole adapted to the feeding roller is provided at the bottom of the storage box.

[0010] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0011] The weld inspection device for pressure vessels, through the arrangement of a bearing mechanism, an adjustment mechanism and a flaw detection mechanism, enables the pressure vessel to be quickly and automatically non-destructively inspected, reduces the intensity of manual flaw detection, and improves the efficiency of weld non-destructive inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the flaw detection mechanism of the utility model;

[0014] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle.

[0015] In the figure: 1. Base; 2. Linear motor; 3. Linear slide; 4. Carrier plate; 5. Self-adjusting roller frame; 6. Bracket; 7. Adjusting cylinder; 8. Carrier frame; 9. Positioning cylinder; 10. Limiting plate; 11. Ultrasonic probe; 12. Connecting seat; 13. Adjusting plate; 14. Positioning shaft; 15. Adjusting screw sleeve; 16. Feeding roller; 17. Adsorption sponge sheet; 18. Storage box. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1-3In this embodiment, a weld inspection device for a pressure vessel includes a carrying mechanism, an adjusting mechanism is provided inside the carrying mechanism, and a flaw detection mechanism is provided at the output end of the adjusting mechanism.

[0018] In this embodiment, the flaw detection mechanism includes an ultrasonic probe 11 and a connecting seat 12. The ultrasonic probe 11 is fixedly installed at the output end of the adjustment mechanism, and the connecting seat 12 is fixedly installed at the output end of the adjustment mechanism. The left side of the connecting seat 12 is hinged with an adjustment plate 13, and the right side of the connecting seat 12 is fixedly installed with a positioning shaft 14. The positioning shaft 14 passes through and extends to the right side of the adjustment plate 13. The external thread of the positioning shaft 14 is installed with an adjusting screw sleeve 15. The bottom of the adjustment plate 13 is detachably installed with a storage box 18, and the bottom of the storage box 18 is rotatably installed with a feeding roller 16. The outside of the feeding roller 16 is fixedly installed with an adsorption sponge sheet 17, and the bottom of the storage box 18 is provided with a through hole adapted to the feeding roller 16.

[0019] It should be noted that a cover is fixed to the bottom of the storage box 18 by bolts, and the loading roller 16 is rotatably installed on the outside of the cover. When the coupling agent inside the storage box 18 is used up, the storage box 18 and the adjustment plate 13 can be disassembled and assembled by the fixing bolts, and then the cover can be removed to conveniently add coupling agent.

[0020] Specifically, when testing pressure vessels of different models, the adjusting screw sleeve 15 can be rotated to move to the right so that it no longer contacts the adjusting plate 13, so that the adjusting plate 13 can rotate on the positioning shaft 14 and rotate forward or backward with the hinge with the connecting seat 12 as the origin, so that the external adsorption sponge sheet 17 of the feeding roller 16 fits with the surface of the pressure vessel, making it more applicable.

[0021] In this embodiment, the supporting mechanism includes a base 1, linear slide rails 3 are fixedly installed on the left and right ends of the top of the base 1, a linear motor 2 is fixedly installed on the top of the base 1, and a carrier plate 4 fixedly connected to the output end of the linear slide rail 3 is fixedly installed on the output end of the linear motor 2, and a plurality of self-adjusting roller frames 5 are fixedly installed on the top of the carrier plate 4.

[0022] The number of the self-adjusting roller frames 5 is adjusted according to actual usage.

[0023] Specifically, the linear motor 2 is started to drive the carrier plate 4 to move backward on the linear slide rail 3, so that the self-adjusting roller frame 5 moves out of the interior of the adjustment mechanism, so that the pressure vessel can be conveniently transported to the self-adjusting roller frame 5 for loading and unloading through external lifting equipment, thereby realizing the self-adjusting roller frame 5 driving the pressure vessel to rotate and adjust its position.

[0024] In this embodiment, the adjustment mechanism includes a bracket 6, which is fixedly mounted on the top front end of the base 1. An adjusting cylinder 7 is fixedly mounted on the top of the bracket 6. The adjusting cylinder 7 passes through and extends to the interior of the bracket 6. The output end of the adjusting cylinder 7 is fixedly mounted with a carrier frame 8. Two positioning cylinders 9 are fixedly mounted inside the carrier frame 8. A limiting plate 10 is fixedly mounted on the output end of the positioning cylinder 9. An ultrasonic probe 11 is fixedly mounted on the bottom of the carrier frame 8. A connecting seat 12 is fixedly mounted on the front of the carrier frame 8.

[0025] Specifically, when inspecting the weld, the self-adjusting roller frame 5 is started to move the weld of the pressure vessel to the bottom of the ultrasonic probe 11, the two positioning cylinders 9 are started to adjust the left and right limit plates 10 to the two ends of the pressure vessel, and the adjusting cylinder 7 is started to lower the limit plates 10 to contact and position them with the two ends of the pressure vessel, so that the pressure vessel can still rotate after moving to the specified position, but the position remains unchanged, thereby cooperating with the flaw detection mechanism to perform flexible and fast inspection.

[0026] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A weld detection device for a pressure vessel, characterized in that: It comprises a carrying mechanism, an adjusting mechanism is provided inside the carrying mechanism, and a flaw detection mechanism is provided at the output end of the adjusting mechanism; The flaw detection mechanism comprises an ultrasonic probe (11) and a connecting seat (12), wherein the ultrasonic probe (11) is fixedly mounted on the output end of the adjustment mechanism, and the connecting seat (12) is fixedly mounted on the output end of the adjustment mechanism. The left side of the connecting seat (12) is hinged with an adjustment plate (13), and the right side of the connecting seat (12) is fixedly mounted with a positioning shaft (14), the positioning shaft (14) passes through and extends to the right side of the adjustment plate (13), and the external thread of the positioning shaft (14) is mounted with an adjustment screw sleeve (15), and the bottom of the adjustment plate (13) is detachably mounted with a storage box (18), the bottom of the storage box (18) is rotatably mounted with a feeding roller (16), and the outside of the feeding roller (16) is fixedly mounted with an adsorption sponge sheet (17).

2. A weld inspection device for a pressure vessel according to claim 1, characterized in that: The bearing mechanism comprises a base (1), linear slide rails (3) are fixedly mounted on both left and right ends of the top of the base (1), a linear motor (2) is fixedly mounted on the top of the base (1), a carrier plate (4) fixedly connected to the output end of the linear slide rail (3) is fixedly mounted on the output end of the linear motor (2), and a plurality of self-adjusting roller frames (5) are fixedly mounted on the top of the carrier plate (4).

3. A weld inspection device for a pressure vessel according to claim 2, characterized in that: The adjusting mechanism comprises a bracket (6), the bracket (6) being fixedly mounted on the top front end of the base (1), an adjusting cylinder (7) being fixedly mounted on the top of the bracket (6), the adjusting cylinder (7) penetrating and extending into the interior of the bracket (6), a supporting frame (8) being fixedly mounted on the output end of the adjusting cylinder (7), two positioning cylinders (9) being fixedly mounted inside the supporting frame (8), and a limiting plate (10) being fixedly mounted on the output end of the positioning cylinder (9).

4. A weld inspection device for a pressure vessel according to claim 3, characterized in that: The ultrasonic probe (11) is fixedly mounted on the bottom of the carrier (8), the connecting seat (12) is fixedly mounted on the front of the carrier (8), and a through hole adapted to the feeding roller (16) is provided at the bottom of the storage box (18).

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