Pressure vessel surface defect repairing device

Abstract

The utility model provides a pressure vessel surface defect repairing device, and relates to the technical field of pressure vessel repairing, the pressure vessel surface defect repairing device comprises a moving frame, a plurality of connecting plates and sliding blocks are driven to slide on the inner side of a limiting groove through an arranged pressure vessel inner wall defect detection assembly and a connecting rocker, and the positions of a plurality of rollers are conveniently adjusted; the rollers can abut against the inner wall of the pressure container, the positions of the rollers can be different, the first motor is controlled to drive the first driving shaft and the defect detection box to rotate, the multiple rollers can rotate around the inner wall of the pressure container, the multiple rollers are arranged in a circumferential mode, and the device can conduct targeted detection and repair on the cylindrical pressure container; a displacement sensor is installed above the displacement sensor installation limiting plate, and in the rolling process of the idler wheel, if the idler wheel touches the defect above the pressure container, the displacement sensor installation limiting plate shakes, and the area and the position of a concave part are recorded.

Description

Technical Field

[0001] This utility model relates to the field of pressure vessel repair technology, and in particular to a pressure vessel surface defect repair device. Background Technology

[0002] Pressure vessel surface defect repair devices are widely used in pressure-bearing equipment such as reaction vessels, storage tanks, and pipelines in industries such as chemical, energy, and pharmaceutical. They can repair various defects such as corrosion pits, stress cracks, and mechanical damage online. They are suitable for metal materials such as carbon steel and stainless steel, as well as composite plates. Especially in high-risk environments, they support explosion-proof remote operation and emergency repair. Through technologies such as laser cladding and robot positioning, they achieve accurate defect identification and metallurgical-grade repair. The repair layer has a hardness of HRC45-50 and excellent temperature resistance. They meet the needs of both routine maintenance and special working conditions, effectively improving equipment safety and operating efficiency.

[0003] In use, existing devices require staff to inspect the surface of the pressure vessel using dent detection equipment and then weld and repair the dents according to their location. However, most existing devices can only repair the outer wall of the vessel, and it is difficult to repair the inner wall. Therefore, we propose a pressure vessel surface defect repair device. Utility Model Content

[0004] In view of this, this application provides a pressure vessel surface defect repair device, which solves the above technical problems to a certain extent.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pressure vessel surface defect repair device includes a movable frame, a first electric telescopic rod fixedly installed on the top of the movable frame, a first motor fixedly installed at the output end of the first electric telescopic rod, a first drive shaft fixedly installed at the output end of the first motor, a defect detection box fixedly installed at the bottom of the first drive shaft, a plurality of sliding blocks slidably installed at the bottom of the defect detection box, and a pressure vessel inner wall defect detection component arranged above the defect detection box and the sliding blocks.

[0007] The pressure vessel inner wall defect detection assembly includes a control turntable, a connecting rocker arm, a connecting plate, a mounting bracket, and a detection sleeve. The control turntable is rotatably mounted inside the defect detection box, the connecting rocker arm is rotatably mounted outside the control turntable, and a connecting plate is rotatably mounted on the outer side of one end of the connecting rocker arm. The connecting plate is fixedly mounted on one side of a sliding block, the mounting bracket is fixedly mounted on the bottom of multiple sliding blocks, and the detection sleeve is fixedly mounted on one side of the mounting bracket.

[0008] As a further improvement to the above solution, the bottom of the defect detection box is provided with multiple limiting grooves, the sliding block is slidably installed inside the limiting grooves, and a pressure vessel surface repair component is provided above the defect detection box and the sliding block.

[0009] As a further improvement to the above solution, the pressure vessel inner wall defect detection assembly also includes a spring, a displacement sensor mounting limit plate, a slide rod, an auxiliary frame, and a roller. The spring is fixedly installed on one side of the inner wall of the detection sleeve, the displacement sensor mounting limit plate is fixedly installed on one side of the spring, the slide rod is fixedly installed on one side of the displacement sensor mounting limit plate, the auxiliary frame is fixedly installed on one side of the slide rod, and the roller is rotatably installed on the inner side of the auxiliary frame.

[0010] As a further improvement to the above solution, the pressure vessel surface repair assembly includes a limit box, a second motor, a lead screw, a sliding plate, and a second electric telescopic rod. The limit box is fixedly installed at the bottom of the sliding block, the second motor is fixedly installed on one side of the limit box, the lead screw is fixedly installed at the output end of the second motor, the sliding plate is threaded onto the outside of the lead screw, and the second electric telescopic rod is fixedly installed on one side of the sliding plate.

[0011] As a further improvement to the above solution, the pressure vessel surface repair assembly also includes a welding device, a grinding device, and a battery. The welding device is fixedly installed at the output end of the second electric telescopic rod, the grinding device is fixedly installed at the output end of the second electric telescopic rod on the other side, and the battery is fixedly installed at the bottom of the defect detection box.

[0012] As a further improvement to the above solution, a displacement sensor is fixedly installed on one side of the displacement sensor mounting limit plate, a sliding groove is provided on one side of the detection sleeve, the sliding rod fits into the sliding groove, and the outer diameter of the displacement sensor mounting limit plate is larger than the inner diameter of the sliding groove.

[0013] As a further improvement to the above solution, a through groove is provided at the connection between the connecting rocker arm and the control turntable and the connecting plate, and a fixing pin is provided on the inner side of the through groove.

[0014] As a further improvement to the above solution, a third motor is fixedly installed on the top inner wall of the defect detection box, a second drive shaft is fixedly installed at the output end of the third motor, a transmission gear is fixedly installed on the outer side of the second drive shaft, and a toothed groove is opened on the outer side of the control turntable, with the transmission gear meshing with the toothed groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] (1) The pressure vessel surface defect repair device of this utility model, through the set pressure vessel inner wall defect detection component, connects the rocker arm to drive multiple connecting plates and sliding blocks to slide inside the limit groove, which facilitates the adjustment of the position of multiple rollers, allowing the rollers to abut against the inner wall of the pressure vessel. Due to the different heights of different detection sleeves, the position of the rollers can be different. The first motor is controlled to drive the first drive shaft and defect detection box to rotate, allowing multiple rollers to rotate around the inner wall of the pressure vessel. The multiple rollers are circumferentially set, allowing the device to perform targeted detection and repair on cylindrical pressure vessels. A displacement sensor is installed above the displacement sensor mounting limit plate. When the rollers roll, if they touch the defect above the pressure vessel, the displacement sensor mounting limit plate will vibrate and record the area and position of the depression.

[0017] (2) The pressure vessel surface defect repair device of this utility model has a pressure vessel surface repair component. The displacement sensor can detect the size and specifications of the recessed area and record the position. At this time, the welding device can be controlled to move to the recessed area, and the second motor can be controlled to drive the lead screw to rotate. The lead screw can adjust the height of the sliding plate through the threaded connection, so that the welding device can weld the recessed area. After the welding is completed, the grinding equipment is moved to the area and the grinding equipment is controlled to grind the welded position. The device can repair the inner wall of the pressure vessel, making the repair of the inner wall defects of the pressure vessel faster and the work efficiency higher.

[0018] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a pressure vessel surface defect repair device proposed in this utility model;

[0020] Figure 2 A schematic diagram of a three-dimensional view of the explosive portion structure of a pressure vessel surface defect repair device according to an embodiment of this application is shown;

[0021] Figure 3 for Figure 2 A magnified structural diagram of A in the middle;

[0022] Figure 4 This is a schematic diagram of a three-dimensional view of a partial structure of a pressure vessel surface defect repair device according to an embodiment of this application.

[0023] Figure label:

[0024] 1. Pressure vessel inner wall defect detection assembly; 2. Pressure vessel surface repair assembly; 3. Moving frame; 4. First electric telescopic rod; 5. First motor; 6. First drive shaft; 7. Defect detection box; 8. Limiting groove; 9. Sliding block;

[0025] 11. Control turntable; 12. Connecting rocker arm; 13. Connecting plate; 14. Mounting bracket; 15. Detection sleeve; 16. Spring; 17. Displacement sensor mounting limit plate; 18. Slide rod; 19. Auxiliary frame; 20. Roller;

[0026] 21. Limit box; 22. Second motor; 23. Lead screw; 24. Sliding plate; 25. Second electric telescopic rod; 26. Welding repair device; 27. Grinding equipment; 28. Battery; 29. ​​Third motor; 30. Second drive shaft; 31. Transmission gear; 32. Gear groove. Detailed Implementation

[0027] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings;

[0028] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0029] refer to Figure 1-4 A pressure vessel surface defect repair device includes a movable frame 3, a first electric telescopic rod 4 fixedly installed on the top of the movable frame 3, a first motor 5 fixedly installed at the output end of the first electric telescopic rod 4, a first drive shaft 6 fixedly installed at the output end of the first motor 5, a defect detection box 7 fixedly installed at the bottom of the first drive shaft 6, a plurality of sliding blocks 9 slidably installed at the bottom of the defect detection box 7, and a pressure vessel inner wall defect detection component 1 is provided above the defect detection box 7 and the sliding blocks 9.

[0030] The pressure vessel inner wall defect detection assembly 1 includes a control turntable 11, a connecting rocker arm 12, a connecting plate 13, a mounting bracket 14, and a detection sleeve 15. The control turntable 11 is rotatably mounted inside the defect detection box 7, the connecting rocker arm 12 is rotatably mounted outside the control turntable 11, and the connecting plate 13 is rotatably mounted on the outer side of one end of the connecting rocker arm 12. The connecting plate 13 is fixedly mounted on one side of the sliding block 9, the mounting bracket 14 is fixedly mounted on the bottom of multiple sliding blocks 9, and the detection sleeve 15 is fixedly mounted on one side of the mounting bracket 14.

[0031] In this embodiment, the bottom of the defect detection box 7 is provided with multiple limiting grooves 8, and the sliding block 9 is slidably installed inside the limiting grooves 8. The pressure vessel surface repair component 2 is provided above the defect detection box 7 and the sliding block 9.

[0032] In this embodiment, the pressure vessel inner wall defect detection assembly 1 further includes a spring 16, a displacement sensor mounting limit plate 17, a slide rod 18, an auxiliary frame 19, and a roller 20. The spring 16 is fixedly installed on one side of the inner wall of the detection sleeve 15, the displacement sensor mounting limit plate 17 is fixedly installed on the outer side of one end of the spring 16, the slide rod 18 is fixedly installed on one side of the displacement sensor mounting limit plate 17, the auxiliary frame 19 is fixedly installed on one side of the slide rod 18, and the roller 20 is rotatably installed on the inner side of the auxiliary frame 19.

[0033] In this embodiment, the pressure vessel surface repair component 2 includes a limiting box 21, a second motor 22, a lead screw 23, a sliding plate 24, and a second electric telescopic rod 25. The limiting box 21 is fixedly installed at the bottom of the sliding block 9, the second motor 22 is fixedly installed on one side of the limiting box 21, the lead screw 23 is fixedly installed at the output end of the second motor 22, the sliding plate 24 is threaded onto the outside of the lead screw 23, and the second electric telescopic rod 25 is fixedly installed on one side of the sliding plate 24.

[0034] In this embodiment, the pressure vessel surface repair assembly 2 also includes a welding device 26, a grinding device 27, and a battery 28. The welding device 26 is fixedly installed at the output end of the second electric telescopic rod 25, the grinding device 27 is fixedly installed at the output end of the second electric telescopic rod 25 on the other side, and the battery 28 is fixedly installed at the bottom of the defect detection box 7. The battery 28 can power multiple drive components inside the defect detection box 7, preventing cable entanglement during rotation. The welding device 26 can be controlled to move to the recessed area, and the second motor 22 can be controlled to drive the lead screw 23 to rotate. The lead screw 23 can adjust the height of the sliding plate 24 through threaded engagement, facilitating the welding device 26 to weld the recessed area. After welding, the grinding device 27 is moved to the area, and the grinding device 27 is controlled to grind the welded area. This allows the device to repair the inner wall of the pressure vessel, making the repair of inner wall defects of the pressure vessel faster and more efficient.

[0035] In this embodiment, a displacement sensor is fixedly installed on one side of the displacement sensor mounting limiting plate 17, and a sliding groove is provided on one side of the detection sleeve 15. The sliding rod 18 fits into the sliding groove. The outer diameter of the displacement sensor mounting limiting plate 17 is larger than the inner diameter of the sliding groove. The sliding groove facilitates the positioning of the displacement sensor mounting limiting plate 17, making it difficult for the displacement sensor mounting limiting plate 17 to slide out from the inside of the detection sleeve 15. The displacement sensor is existing technology, so it is not described in detail in this utility model. When the roller 20 rolls, if it touches a defect above the pressure vessel, the roller 20 will drive the auxiliary frame 19, the sliding rod 18 and the displacement sensor mounting limiting plate 17 to move under force. At this time, the displacement sensor can detect the size and specifications of the recessed area and record the position.

[0036] In this embodiment, a through groove is provided at the connection between the connecting rocker arm 12 and the control turntable 11 and the connecting plate 13, and a fixing pin is provided on the inner side of the through groove; the fixing pin can make the connection between the connecting rocker arm 12 and the control turntable 11 and the connecting rocker arm 12 relatively tight, so that the connecting rocker arm 12 can drive the connecting plate 13 to move after rotation.

[0037] In this embodiment, a third motor 29 is fixedly installed on the top inner wall of the defect detection box 7. A second drive shaft 30 is fixedly installed at the output end of the third motor 29. A transmission gear 31 is fixedly installed on the outer side of the second drive shaft 30. A toothed groove 32 is opened on the outer side of the control turntable 11. The transmission gear 31 and the toothed groove 32 mesh with each other. According to the inner wall diameter of the pressure vessel, the third motor 29 can be controlled to drive the second drive shaft 30 and the transmission gear 31 to rotate. The transmission gear 31 can cooperate with the toothed groove 32 to drive the control turntable 11 to rotate. After the control turntable 11 rotates, it can drive multiple connecting plates 13 and sliding blocks 9 to slide inside the limiting groove 8 through the connecting rocker arm 12, which facilitates the adjustment of the position of multiple rollers 20 and allows the rollers 20 to abut against the inner wall of the pressure vessel.

[0038] The specific operation is as follows: the movable frame 3 is moved above the pressure vessel to be inspected. The first electric telescopic rod 4 is controlled to lower the defect detection box 7. According to the inner diameter of the pressure vessel, the third motor 29 is controlled to drive the second drive shaft 30 and the transmission gear 31 to rotate. The transmission gear 31 can cooperate with the tooth groove 32 to drive the control turntable 11 to rotate. After the control turntable 11 rotates, it can drive multiple connecting plates 13 and sliding blocks 9 to slide inside the limiting groove 8 through the connecting rocker arm 12, which facilitates the adjustment of the position of multiple rollers 20, allowing the rollers 20 to abut against the inner wall of the pressure vessel. Since the different detection sleeves 15 have different heights, the position of the rollers 20 can be different. The first motor 5 is controlled to drive the first drive shaft 6 and the defect detection box 7 to rotate, allowing multiple rollers 20 to rotate around the inner wall of the pressure vessel. The multiple rollers 20 are arranged in a circle, which allows the device to inspect cylindrical pressure vessels. For targeted detection and repair, a displacement sensor is installed above the displacement sensor mounting limit plate 17. When the roller 20 rolls, if it touches a defect on the top of the pressure vessel, the roller 20 will drive the auxiliary frame 19, slide rod 18, and displacement sensor mounting limit plate 17 to move under force. At this time, the displacement sensor can detect the size and specifications of the recessed area and record the position. Then, the welding repair device 26 can be controlled to move to the recessed area, and the second motor 22 can be controlled to drive the lead screw 23 to rotate. The lead screw 23 can adjust the height of the sliding plate 24 through the threaded engagement, so that the welding repair device 26 can weld the recessed area. After the welding repair is completed, the grinding device 27 is moved to the area and the grinding device 27 is controlled to grind the welded area. This allows the device to repair the inner wall of the pressure vessel, making the repair of defects on the inner wall of the pressure vessel faster and more efficient.

[0039] It should be noted that although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure vessel surface defect repair apparatus, characterized by, Include: The mobile frame (3), the top of the mobile frame (3) is fixedly installed with a first electric telescopic rod (4), the output end of the first electric telescopic rod (4) is fixedly installed with a first motor (5), the output end of the first motor (5) is fixedly installed with a first drive shaft (6), the bottom of the first drive shaft (6) is fixedly installed with a defect detection box (7), the bottom of the defect detection box (7) is slidably installed with a plurality of sliding blocks (9), and the defect detection box (7) and the sliding block (9) are provided above the pressure vessel inner wall defect detection assembly (1); The pressure vessel inner wall defect detection assembly (1) includes a control turntable (11), a connecting rocker (12), a connecting plate (13), a mounting bracket (14) and a detection sleeve (15), the control turntable (11) is rotatably installed on the inner side of the defect detection box (7), the connecting rocker (12) is rotatably installed on the outer side of the control turntable (11), one end of the connecting rocker (12) is rotatably installed with the connecting plate (13), the connecting plate (13) is fixedly installed on one side of the sliding block (9), the mounting bracket (14) is fixedly installed on the bottom of the plurality of sliding blocks (9), and the detection sleeve (15) is fixedly installed on one side of the mounting bracket (14).

2. A pressure vessel surface defect repair apparatus according to claim 1, wherein, A plurality of limiting grooves (8) are formed in the bottom of the defect detection box (7), the sliding block (9) is slidably installed in the inner side of the limiting groove (8), and the defect detection box (7) and the sliding block (9) are provided above the pressure container surface repair assembly (2).

3. The apparatus for repairing surface defects of a pressure vessel according to claim 1, wherein The pressure vessel inner wall defect detection assembly (1) further comprises a spring (16), a displacement sensor mounting limiting plate (17), a sliding rod (18), an auxiliary frame (19) and a roller (20), the spring (16) is fixedly installed on the inner wall of one side of the detection sleeve (15), the displacement sensor mounting limiting plate (17) is fixedly installed on the outer side of one end of the spring (16), the sliding rod (18) is fixedly installed on one side of the displacement sensor mounting limiting plate (17), the auxiliary frame (19) is fixedly installed on one side of the sliding rod (18), and the roller (20) is rotatably installed in the inner side of the auxiliary frame (19).

4. The apparatus for repairing surface defects of a pressure vessel according to claim 2, wherein The pressure container surface repair assembly (2) includes a limiting box (21), a second motor (22), a lead screw (23), a sliding plate (24) and a second electric telescopic rod (25), the limiting box (21) is fixedly installed on the bottom of the sliding block (9), the second motor (22) is fixedly installed on one side of the limiting box (21), the lead screw (23) is fixedly installed on the output end of the second motor (22), the sliding plate (24) is threadedly installed on the outer side of the lead screw (23), and the second electric telescopic rod (25) is fixedly installed on one side of the sliding plate (24).

5. The apparatus for repairing surface defects of a pressure vessel according to claim 2, wherein The pressure vessel surface repair assembly (2) further comprises a repair welding device (26), a polishing device (27) and a battery (28), the repair welding device (26) is fixedly installed on the output end of the second electric telescopic rod (25), the polishing device (27) is fixedly installed on the output end of the second electric telescopic rod (25) on the other side, and the battery (28) is fixedly installed on the bottom of the defect detection box (7).

6. The apparatus for repairing surface defects of a pressure vessel according to claim 3, wherein One side of the displacement sensor mounting limiting plate (17) is fixedly installed with a displacement sensor, one side of the detection sleeve (15) is provided with a sliding groove, the sliding rod (18) is matched with the sliding groove, and the outer diameter of the displacement sensor mounting limiting plate (17) is greater than the inner diameter of the sliding groove.

7. The apparatus for repairing surface defects of a pressure vessel according to claim 1, wherein A through groove is formed at the connection between the connecting rocker (12) and the control turntable (11) and the connecting plate (13), and a fixed bolt is arranged on the inner side of the through groove.

8. The apparatus for repairing surface defects of a pressure vessel according to claim 1, wherein A third motor (29) is fixedly installed on the top inner wall of the defect detection box (7), a second driving shaft (30) is fixedly installed on the output end of the third motor (29), a transmission gear (31) is fixedly installed on the outer side of the second driving shaft (30), a tooth groove (32) is formed on the outer side of the control turntable (11), and the transmission gear (31) is engaged with the tooth groove (32).

Images