Polytetrafluoroethylene lining welding device at kettle end socket
The multi-rod structure driven by hydraulic cylinders and motors solves the problem of inflexible height adjustment of the reactor head liner, achieving stable clamping and multi-angle welding of the reactor head liner, ensuring uniformity and integrity of the welding, and preventing liner movement and material loss.
Patent Information
- Application Number
- CN202520194986.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-08
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-08
AI Technical Summary
The existing PTFE lining welding device for reactor heads cannot flexibly adjust the height of the lining to adapt to reactor heads of different heights and sizes, resulting in uneven and incomplete welding.
The system employs a multi-bar structure driven by a hydraulic cylinder and a motor. The hydraulic cylinder pushes and pulls the connecting rod to drive the rotating rod to slide, while the motor drives the rotating gear and rack to slide, thereby achieving stable clamping and height adjustment of the reactor head and ensuring that the relative position of the liner and the head remains unchanged. It is then used in conjunction with a multi-angle welding assembly for welding.
It enables flexible height adjustment of the reactor head liner, ensuring uniformity and integrity of the weld, preventing the liner from moving during the weld process, and avoiding material loss and environmental pollution.
Smart Images
Figure CN223864356U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical corrosion protection equipment technology, and in particular to a welding device for polytetrafluoroethylene lining at the reactor head. Background Technology
[0002] The term "vessel" mainly refers to a reaction vessel, which is a container for carrying out physical or chemical reactions. It is usually cylindrical, has a closed outer shell, and is equipped with various auxiliary equipment such as a stirrer, heating or cooling device, thermometer, and pressure gauge.
[0003] In many industrial fields such as chemical and pharmaceutical industries, reactors are often exposed to various corrosive media. Polytetrafluoroethylene (PTFE) has excellent corrosion resistance and can withstand the corrosion of almost all chemical substances. By using a PTFE lining welding device at the reactor head, a corrosion-resistant protective film can be formed on the surface of the head, effectively isolating the corrosive media from the reactor body metal material and greatly extending the service life of the reactor.
[0004] Existing PTFE liner welding devices for reactor heads may not be able to place the liner at the appropriate height when faced with reactor heads of different heights and sizes. This results in an inability to flexibly adjust the height of the liner to accommodate various reactor heads during welding, thus failing to ensure good contact between the liner and the head, and consequently affecting the uniformity and integrity of the weld. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a PTFE liner welding device for reactor heads, which aims to improve the problem that existing PTFE liner welding devices for reactor heads cannot place the liner at a suitable height when facing reactor heads of different heights and sizes, resulting in an inability to flexibly adjust the height of the liner during welding, thus affecting the uniformity and integrity of the welding.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A polytetrafluoroethylene (PTFE) lining welding device for the reactor head includes a base plate. A fixing block is fixedly connected to the upper surface of the base plate. A rotating shaft is rotatably connected to the inner wall of the fixing block. A hydraulic cylinder is fixedly connected to the outer wall of the rotating shaft. A connecting rod is fixedly installed at the output end of the hydraulic cylinder. A first rotating rod is rotatably connected to the outer wall of the connecting rod. The outer wall of the first rotating rod is rotatably connected to the inner wall of the fixing block. A second rotating rod is rotatably connected to the outer wall of the first rotating rod. A third rotating rod is rotatably connected to the outer wall of the second rotating rod. The outer wall of the third rotating rod is rotatably connected to the inner wall of the fixing block. The inner wall of the third rotating rod is rotatably connected to the inner wall of the connecting rod. A support column is fixedly connected to the inner wall of the lower base plate. The outer wall of the support column is slidably connected to the inner wall of the upper base plate. The lower surface of the upper base plate is fixedly connected to the outer wall of the fixing block. A welding assembly is provided on the inner wall of the base plate. The welding assembly is used for welding polytetrafluoroethylene.
[0008] Preferably, the welding assembly includes a sliding column, the outer wall of which is fixedly connected to the inner wall of the lower base plate, the inner wall of the upper base plate is slidably connected to the outer wall of the sliding column, a support rod is fixedly connected to the top of the sliding column, a first welder body is rotatably connected to the inner wall of the support rod, a rotating block is rotatably connected to the outer wall of the first welder body, a second welder body is fixedly connected to the outer wall of the rotating block, and a fixing box is fixedly connected to the inner wall of the upper base plate.
[0009] Preferably, a motor is fixedly connected to the upper surface of the base plate, a rotating column is fixedly provided at the output end of the motor, a hollow block is rotatably connected to the outer wall of the rotating column, and the lower surface of the hollow block is fixedly connected to the upper surface of the base plate.
[0010] Preferably, a rotating gear is fixedly connected to the outer wall of the rotating column, the outer wall of the rotating gear is rotatably connected to the inside of the hollow block, the tooth end of the rotating gear is meshed with a rack, and the lower surface of the rack is slidably connected to the inner wall of the hollow block.
[0011] Preferably, a limiting plate is rotatably connected to the outer wall of the rotating column, and the lower surface of the limiting plate is fixedly connected to the upper surface of the base plate.
[0012] Preferably, a slider is fixedly connected to the outer wall of the rack, and the outer wall of the slider is slidably connected to the inner wall of the hollow block.
[0013] Preferably, a connecting column is fixedly connected to the inner wall of the slider, and a clamping block is fixedly connected to the outer wall of the connecting column.
[0014] Preferably, the lower surface of the clamping block is slidably connected to the upper surface of the base plate, and the inner wall of the clamping block is fixedly connected to a clamping column.
[0015] This utility model has the following beneficial effects:
[0016] 1. In this utility model, the first rotating rod is driven to rotate by the hydraulic cylinder pushing and pulling the connecting rod, which in turn drives the second rotating rod to swing. The second rotating rod drives the third rotating rod to slide, so that the first and third rotating rods rotate within the fixed block. The first and third rotating rods drive the base plate to slide outside the support column. During use, the height of the reactor head with different heights and sizes can be flexibly adjusted to adapt to the effects of various reactor heads.
[0017] 2. In this utility model, the rotating column is driven by a motor to rotate, which in turn drives the rotating gear to rotate and the rack to slide. The rack drives the slider and the connecting column fixed to the inner wall of the slider to slide together, which in turn drives the clamping block to slide. During use, the position of the polytetrafluoroethylene liner can be fixed to prevent it from moving during the welding operation, and ensure that the relative position between the liner and the end cap remains unchanged throughout the welding process. Attached Figure Description
[0018] Figure 1 This is a perspective view of the polytetrafluoroethylene lining welding device at the reactor head proposed in this utility model.
[0019] Figure 2 This is a partial structural diagram of the connecting rod of the polytetrafluoroethylene lining welding device at the reactor head proposed in this utility model.
[0020] Figure 3 for Figure 1 Enlarged view of point A in the middle;
[0021] Figure 4 This is a partial structural diagram of the limiting piece of the polytetrafluoroethylene lining welding device at the reactor head proposed in this utility model.
[0022] Figure 5 This is a partial structural diagram of the connecting column of the polytetrafluoroethylene lining welding device at the reactor head proposed in this utility model.
[0023] Legend:
[0024] 1. Base plate; 2. Fixing block; 3. Rotating shaft; 4. Hydraulic cylinder; 5. Connecting rod; 6. First rotating rod; 7. Second rotating rod; 8. Third rotating rod; 9. Support column; 10. Sliding column; 11. Support rod; 12. First welder body; 13. Rotating block; 14. Second welder body; 15. Motor; 16. Rotating column; 17. Rotating gear; 18. Hollow block; 19. Rack; 20. Sliding block; 21. Connecting column; 22. Clamping block; 23. Clamping column; 24. Limiting plate; 25. Fixing box. Detailed Implementation
[0025] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0026] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a polytetrafluoroethylene (PTFE) lining welding device for a reactor head, comprising a base plate 1, a fixing block 2 fixedly connected to the upper surface of the base plate 1, a rotating shaft 3 rotatably connected to the inner wall of the fixing block 2, a hydraulic cylinder 4 fixedly connected to the outer wall of the rotating shaft 3, a connecting rod 5 fixedly provided at the output end of the hydraulic cylinder 4, a first rotating rod 6 rotatably connected to the outer wall of the connecting rod 5, the outer wall of the first rotating rod 6 rotatably connected to the inner wall of the fixing block 2, a second rotating rod 7 rotatably connected to the outer wall of the first rotating rod 6, a third rotating rod 8 rotatably connected to the outer wall of the second rotating rod 7, the outer wall of the third rotating rod 8 rotatably connected to the inner wall of the fixing block 2, and the inner wall of the third rotating rod 8 rotatably connected to the inner wall of the connecting rod 5. A support column 9 is fixedly connected to the inner wall of the lower base plate 1, the outer wall of the support column 9 is slidably connected to the inner wall of the upper base plate 1, the lower surface of the upper base plate 1 is fixedly connected to the outer wall of the fixing block 2, and a welding assembly is provided on the inner wall of the base plate 1 for welding PTFE.
[0027] Specifically, the rotating shaft 3 is driven to rotate by the fixing block 2 fixed on the upper surface of the base plate 1, so that the hydraulic cylinder 4 fixed on the outer wall of the rotating shaft 3 can achieve the effect of stable pushing and pulling of the connecting rod 5. The connecting rod 5 drives the first rotating rod 6 to push and pull, so that the first rotating rod 6 drives the second rotating rod 7 to have a linked swinging effect during use. The second rotating rod 7 drives the third rotating rod 8 to swing, so that the third rotating rod 8 can drive the connecting rod 5 to have a stable swinging effect during use. The rotation of the third rotating rod 8 and the first rotating rod 6 on the inner wall of the fixing block 2 has the effect of preventing the first rotating rod 6 and the third rotating rod 8 from falling off during use. The fixing block 2 drives the base plate 1 to achieve a stable lifting and lowering effect. The lower base plate 1 drives the support column 9 to be fixed, so that the upper base plate 1, which slides on the outer wall of the support column 9, can limit the base plate 1 during use to prevent the base plate 1 from falling off. The lifting and lowering of the base plate 1 can raise the reactor head of different heights and sizes to a suitable height position during use, so as to flexibly adjust the height of the lining and ensure the uniformity and integrity of the weld.
[0028] Reference Figure 1 and Figure 3The welding assembly includes a sliding column 10, the outer wall of which is fixedly connected to the inner wall of the lower base plate 1, the inner wall of the upper base plate 1 is slidably connected to the outer wall of the sliding column 10, a support rod 11 is fixedly connected to the top of the sliding column 10, a first welder body 12 is rotatably connected to the inner wall of the support rod 11, a rotating block 13 is rotatably connected to the outer wall of the first welder body 12, a second welder body 14 is fixedly connected to the outer wall of the rotating block 13, and a fixing box 25 is fixedly connected to the inner wall of the upper base plate 1.
[0029] Specifically, the lower base plate 1 drives the sliding column 10 for fixation, allowing the upper base plate 1 to slide within the sliding column 10, providing stable support during use. The sliding column 10 drives the support rod 11 for fixation, enabling the support rod 11 to rotate the first welder body 12. The first welder body 12 then drives the second welder body 14, which is fixed to the outer wall of the rotating block 13, to rotate. This achieves multi-angle welding, avoiding insufficient or excessive welding in certain areas. The base plate 1 drives the fixing box 25 for fixation, facilitating the placement of the reactor head during use. It also effectively confines the polytetrafluoroethylene material within the required welding area, preventing unnecessary material loss and environmental pollution.
[0030] Reference Figure 4 and Figure 5 A motor 15 is fixedly connected to the upper surface of the base plate 1. A rotating column 16 is fixedly installed at the output end of the motor 15. A hollow block 18 is rotatably connected to the outer wall of the rotating column 16. The lower surface of the hollow block 18 is fixedly connected to the upper surface of the base plate 1. A rotating gear 17 is fixedly connected to the outer wall of the rotating column 16. The outer wall of the rotating gear 17 is rotatably connected to the inside of the hollow block 18. A rack 19 is meshed with the tooth end of the rotating gear 17. The lower surface of the rack 19 is slidably connected to the hollow block 18. The inner wall of the rotating column 16 is rotatably connected to the outer wall of the base plate 1, and the lower surface of the limiting plate 24 is fixedly connected to the upper surface of the base plate 1. The outer wall of the rack 19 is fixedly connected to the slider 20, and the outer wall of the slider 20 is slidably connected to the inner wall of the hollow block 18. The inner wall of the slider 20 is fixedly connected to the connecting column 21, and the outer wall of the connecting column 21 is fixedly connected to the clamping block 22. The lower surface of the clamping block 22 is slidably connected to the upper surface of the base plate 1, and the inner wall of the clamping block 22 is fixedly connected to the clamping column 23.
[0031] Specifically, the base plate 1 drives the motor 15 for fixation, allowing the motor 15 to drive the rotating column 16 to rotate. The base plate 1 also drives the hollow block 18 for fixation, ensuring that the rotating gear 17 driven by the rotating column 16 can rotate stably inside the hollow block 18. The rotating column 16 rotates within the limiting piece 24 fixed on the upper surface of the base plate 1, preventing the rotating gear 17 from falling off. The rotating gear 17 drives the rack 19 to slide, causing the rack 19 to drive the slider 20 for fixation. During use, the rack 19 drives the slider 20 to slide stably inside the hollow block 18 while also providing a guiding effect. The slider 20 drives the connecting column 21 to slide, causing the connecting column 21 to drive the clamping block 22 for fixation. During use, the clamping column 23 fixed inside the clamping block 22 provides stable centering and clamping of the vessel head, preventing it from moving during the welding operation and ensuring that the relative position between the liner and the head remains unchanged throughout the welding process.
[0032] Working principle: When this device is needed, the vessel head is placed in the fixed box 25 fixed inside the bottom plate 1. Then, the motor 15 drives the rotating column 16 to rotate, which in turn drives the rotating gear 17 to rotate. During use, the rotating column 16 drives the rack 19 to slide stably for centering. The rack 19 drives the slider 20 to be fixed, and the slider 20 drives the connecting column 21 to slide inside the hollow block 18. During use, the slider slides stably while preventing it from falling off. The connecting column 21 drives the clamping block 22 and the inner wall of the clamping block 22. The fixed clamping column 23 slides together, providing a quick centering and clamping effect for the vessel head during use. After centering and clamping the vessel head, the hydraulic cylinder 4 is activated to drive the connecting rod 5 to push and pull, causing the connecting rod 5 to drive the first rotating rod 6 to achieve a stable swinging effect. The first rotating rod 6 drives the second rotating rod 7 to swing, causing the second rotating rod 7 to drive the support column 9 to swing together. During use, the second rotating rod 7 connects the first rotating rod 6 and the third rotating rod 8 to achieve a linked swinging effect. The base plate 1 drives the fixing block 2 to fix the first rotating rod 6 and the third rotating rod 8. The stable rotation within the fixed block 2 achieves the stable lifting and lowering of the base plate 1. The sliding of the base plate 1 within the support column 9 prevents it from falling off during lifting and lowering. The sliding column 10 drives the support rod 11 for fixation, allowing the support rod 11 to simultaneously drive the first welder body 12 and the second welder body 14, fixed to the outer wall of the rotating block 13, to perform welding together, achieving multi-angle welding. The third rotating rod 8 enables stable lifting and lowering, raising reactor heads of different heights and sizes to appropriate heights, flexibly adjusting the liner height to ensure uniformity and integrity at the weld. The clamping block 22 provides stable centering and clamping of the reactor head, preventing movement during welding and ensuring the relative position between the liner and the head remains constant. The rotating block 13 enables multi-angle welding, avoiding insufficient or excessive welding in certain areas. The fixed box 25 effectively confines the PTFE material within the required welding area, preventing unnecessary material loss and environmental pollution.
[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A polytetrafluoroethylene lining welding device for the reactor head, comprising a base plate (1), characterized in that: A fixing block (2) is fixedly connected to the upper surface of the base plate (1). A rotating shaft (3) is rotatably connected to the inner wall of the fixing block (2). A hydraulic cylinder (4) is fixedly connected to the outer wall of the rotating shaft (3). A connecting rod (5) is fixedly installed at the output end of the hydraulic cylinder (4). A first rotating rod (6) is rotatably connected to the outer wall of the connecting rod (5). The outer wall of the first rotating rod (6) is rotatably connected to the inner wall of the fixing block (2). A second rotating rod (7) is rotatably connected to the outer wall of the first rotating rod (6). A third rotating rod (8) is rotatably connected. The outer wall of the third rotating rod (8) is rotatably connected to the inner wall of the fixed block (2). The inner wall of the third rotating rod (8) is rotatably connected to the inner wall of the connecting rod (5). A support column (9) is fixedly connected to the inner wall of the lower base plate (1). The outer wall of the support column (9) is slidably connected to the inner wall of the upper base plate (1). The lower surface of the upper base plate (1) is fixedly connected to the outer wall of the fixed block (2). A welding assembly is provided on the inner wall of the base plate (1). The welding assembly is used to weld polytetrafluoroethylene.
2. The polytetrafluoroethylene lining welding device at the reactor head according to claim 1, characterized in that: The welding assembly includes a sliding column (10), the outer wall of which is fixedly connected to the inner wall of the lower base plate (1), the inner wall of the upper base plate (1) is slidably connected to the outer wall of the sliding column (10), a support rod (11) is fixedly connected to the top of the sliding column (10), a first welder body (12) is rotatably connected to the inner wall of the support rod (11), a rotating block (13) is rotatably connected to the outer wall of the first welder body (12), a second welder body (14) is fixedly connected to the outer wall of the rotating block (13), and a fixing box (25) is fixedly connected to the inner wall of the upper base plate (1).
3. The polytetrafluoroethylene lining welding device at the reactor head according to claim 2, characterized in that: A motor (15) is fixedly connected to the upper surface of the base plate (1). A rotating column (16) is fixedly installed at the output end of the motor (15). A hollow block (18) is rotatably connected to the outer wall of the rotating column (16). The lower surface of the hollow block (18) is fixedly connected to the upper surface of the base plate (1).
4. The polytetrafluoroethylene lining welding device at the reactor head according to claim 3, characterized in that: A rotating gear (17) is fixedly connected to the outer wall of the rotating column (16). The outer wall of the rotating gear (17) is rotatably connected to the inside of the hollow block (18). The tooth end of the rotating gear (17) is meshed with a rack (19). The lower surface of the rack (19) is slidably connected to the inner wall of the hollow block (18).
5. The polytetrafluoroethylene lining welding device at the reactor head according to claim 4, characterized in that: The outer wall of the rotating column (16) is rotatably connected to a limiting piece (24), and the lower surface of the limiting piece (24) is fixedly connected to the upper surface of the base plate (1).
6. The polytetrafluoroethylene lining welding device at the reactor head according to claim 5, characterized in that: The outer wall of the rack (19) is fixedly connected to a slider (20), and the outer wall of the slider (20) is slidably connected to the inner wall of the hollow block (18).
7. The polytetrafluoroethylene lining welding device at the reactor head according to claim 6, characterized in that: The inner wall of the slider (20) is fixedly connected to a connecting column (21), and the outer wall of the connecting column (21) is fixedly connected to a clamping block (22).
8. The polytetrafluoroethylene lining welding device at the reactor head according to claim 7, characterized in that: The lower surface of the clamping block (22) is slidably connected to the upper surface of the base plate (1), and the inner wall of the clamping block (22) is fixedly connected to the clamping column (23).