A heat exchanger welding correcting device
By designing a heat exchanger welding straightening device, the position of the plates and end guards is adjusted using locking and limiting components, which solves the problem of deformation during coil welding, achieves efficient straightening and multiple uses, and reduces costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG SINOKING AIR CONDITIONING & REFRIGERATION CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-24
AI Technical Summary
During the welding process, the coil composed of copper tube and aluminum foil is prone to deformation due to high temperature, resulting in poor welding. Existing correction devices are costly and inefficient.
A heat exchanger welding straightening device is designed. The positions of the first and second movable plates are adjusted by rotating the adjusting bolts. The plates and end guards are straightened by using locking and limiting components. The silicone rubber plate is combined to improve the fixing effect and reduce the intensity of manual labor.
It improves the dimensional accuracy of the outer plate of the coil after welding, reduces production costs, improves welding quality and efficiency, and can be used multiple times.
Smart Images

Figure CN224543591U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat exchanger welding technology, and in particular to a heat exchanger welding straightening device. Background Technology
[0002] The main function of a heat exchanger is to facilitate heat exchange between two or more fluids through heat conduction, convection, or radiation, thereby completing processes such as heating, cooling, evaporation, and condensation. In industrial production, heat exchangers are known as "thermal energy stewards," and their design and application directly affect production efficiency and the rationality of energy utilization.
[0003] In existing technologies, coils are generally composed of copper tubing and aluminum foil. Because copper itself has high value, existing scrap coils can be recycled. However, when welding the copper tubing, the temperature can reach 500-600℃. When the copper tubing is over 3 meters long and the overall coil height is over 1 meter, the sheet metal securing the copper tubing and aluminum foil is extremely prone to severe deformation during welding, especially when the sheet metal is made of stainless steel. If the entire coil is severely deformed, it will be unusable, resulting in significant losses. Therefore, devices for straightening large coils are urgently needed. Traditional reinforcement methods involve thickening the sheet metal, which significantly increases costs.
[0004] In response to this technical problem, this application proposes a heat exchanger welding correction device. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a heat exchanger welding straightening device. By rotating the adjusting bolt, it slides within the adjusting groove, thereby pushing or pulling the first and second movable plates. This allows the two fixed plates on both sides to fit against the two end guard plates. After adjustment, tightening the adjusting bolt locks the end guard plates and plates on both sides, straightening the plates and end guard plates. This improves the dimensional accuracy of the outer plates of the welded coil, reduces the labor intensity of manual straightening, improves product quality, and can be used multiple times.
[0006] To achieve the above objectives, the present invention provides the following technical solution: A heat exchanger welding straightening device includes a plate, with end guards fixedly connected to both ends of the plate. A water inlet pipe is fixedly connected to the front side of the left end of the end guard, and a water outlet pipe is fixedly connected to the rear side of the left end of the end guard. A first movable plate is provided at both ends of the end guard. A second movable plate is slidably connected to the inner wall of the first movable plate. A locking component is provided at the front end of the second movable plate. A fixing plate is fixedly connected to the outer rear ends of the first and second movable plates. A sliding plate is slidably connected to the inner wall of the fixing plate. A silicone rubber plate is fixedly connected to one end of the inner side of the sliding plate. A limit component is provided on the inner wall of the front end of the fixing plate.
[0007] Furthermore, the locking assembly includes an adjusting bolt threadedly connected to the front end of the second movable plate, and an adjusting groove is provided at the front end of the first movable plate, with the outer wall of the adjusting bolt slidably connected to the inner wall of the adjusting groove.
[0008] Furthermore, the limiting component includes a limiting block that is slidably connected to the inner wall of the front end of the fixed plate. A connecting rod is fixedly connected to the front end of the limiting block, and a pull plate is fixedly connected to the front end of the connecting rod. The limiting block and the inner wall of the fixed plate are connected by a spring.
[0009] Furthermore, a handle is fixedly connected to the left end of the sliding plate, and an anti-slip pad is provided on the outer wall of the handle.
[0010] Furthermore, the front side of the top of the sliding plate corresponds to the bottom end of the limiting block.
[0011] Furthermore, one end of the spring is connected to the limiting block, and the other end of the spring is connected to the inner wall of the fixing plate.
[0012] Furthermore, the outer edge of the fixing plate is relatively small.
[0013] This utility model has the following beneficial effects: In this invention, by rotating the adjusting bolt, it slides within the adjusting groove, thereby pushing or pulling the first and second movable plates. This allows the two fixed plates on both sides to fit against the two end guard plates. After adjustment, tightening the adjusting bolt locks the end guard plates and plates on both sides, and corrects the plates and end guard plates. This improves the dimensional accuracy of the outer plates of the coil after welding, reduces the labor intensity of manual correction, improves product quality, and allows for multiple uses.
[0014] In this invention, pulling the handle causes the sliding plate to slide along the inner wall of the fixed plate, which in turn moves the silicone rubber plate, facilitating its disassembly and replacement. After replacement, releasing the handle causes the spring force to reset the limiting block, which then limits the sliding plate, thus completing the replacement of the silicone rubber plate. This ensures the effectiveness of the correction device and improves its practicality. Attached Figure Description
[0015] Figure 1 This is a perspective view of a heat exchanger welding straightening device proposed in this utility model; Figure 2 This is a schematic diagram of the structure of the fixing plate in a heat exchanger welding straightening device proposed in this utility model; Figure 3 This is a schematic diagram of the structure of the silicone rubber plate in a heat exchanger welding straightening device proposed in this utility model; Figure 4 This is a schematic diagram of the limiting block in a heat exchanger welding straightening device proposed in this utility model.
[0016] Legend: 1. Plate; 2. End guard plate; 3. Inlet pipe; 4. Outlet pipe; 5. First movable plate; 6. Second movable plate; 7. Adjusting bolt; 8. Adjusting groove; 9. Fixed plate; 10. Sliding plate; 11. Silicone rubber plate; 12. Handle; 13. Limiting block; 14. Connecting rod; 15. Pull plate; 16. Spring. Detailed Implementation
[0017] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Reference Figures 1-3 An embodiment of this utility model provides a heat exchanger welding straightening device, including a plate 1, with end guard plates 2 fixedly connected to the left and right ends of the plate 1, an inlet pipe 3 fixedly connected to the front side of the left end of the end guard plate 2, an outlet pipe 4 fixedly connected to the rear side of the left end of the end guard plate 2, a first movable plate 5 provided at the front and rear ends of the end guard plate 2, a second movable plate 6 slidably connected to the inner wall of the first movable plate 5, an adjusting bolt 7 threadedly connected to the front end of the second movable plate 6, an adjusting groove 8 opened at the front end of the first movable plate 5, the outer wall of the adjusting bolt 7 slidably connected to the inner wall of the adjusting groove 8, a fixing plate 9 fixedly connected to the outer rear end of the first movable plate 5 and the second movable plate 6, a sliding plate 10 slidably connected to the inner wall of the fixing plate 9, a silicone rubber plate 11 fixedly connected to one end of the inner side of the sliding plate 10, and a smaller folded edge on the outer side of the fixing plate 9; Specifically, due to the effects of high temperature, plate 1 and end guard plate 2 may deform. In this case, the plate 1 and end guard plate 2 can be corrected by adjusting the positions of the first movable plate 5 and the second movable plate 6 and fixing the first movable plate 5 and the second movable plate 6 with the locking assembly.
[0019] The specific operation is as follows: By rotating the adjusting bolt 7, it slides within the adjusting groove 8, thereby pushing or pulling the first movable plate 5 and the second movable plate 6, causing the two side fixed plates 9 to tightly fit against the two side end guard plates 2, thus correcting the plate 1 and the end guard plate 2. In addition, the silicone rubber plate 11 enhances the fixing effect and prevents the device from falling off. After adjustment, tighten the adjusting bolt 7 to firmly lock the two side end guard plates 2 and plate 1. After the entire coil is welded, loosen the adjusting bolt 7, and the device can be easily disassembled for subsequent use.
[0020] Reference Figures 3-4A limiting block 13 is slidably connected to the inner wall of the front end of the fixed plate 9. A connecting rod 14 is fixedly connected to the front end of the limiting block 13. A pull plate 15 is fixedly connected to the front end of the connecting rod 14. The limiting block 13 and the inner wall of the fixed plate 9 are connected by a spring 16. A handle 12 is fixedly connected to the left end of the sliding plate 10. An anti-slip pad is provided on the outer wall of the handle 12. The front side of the top of the sliding plate 10 corresponds to the bottom end of the limiting block 13. One end of the spring 16 is connected to the limiting block 13. The other end of the spring 16 is connected to the inner wall of the fixed plate 9. Specifically, when the silicone rubber sheet 11 wears out due to overuse and needs to be replaced, pulling the pull plate 15 moves the connecting rod 14, causing the limiting block 13 to slide on the inner wall of the fixed plate 9. Simultaneously, the spring 16 deforms, and the limiting block 13 no longer limits the sliding plate 10. Then, pulling the handle 12 moves the sliding plate 10 along the inner wall of the fixed plate 9, which in turn moves the silicone rubber sheet 11, facilitating its disassembly and replacement. After replacement, releasing the pull plate 15 resets the limiting block 13, which then again limits the sliding plate 10, thus completing the replacement process for the silicone rubber sheet 11.
[0021] Working Principle: During the heat exchanger welding process, the plates 1 and end guards 2 may deform due to the high temperature. In this case, the positions of the first movable plate 5 and the second movable plate 6 can be adjusted, and the locking assembly can be used to fix the first movable plate 5 and the second movable plate 6 together, thereby correcting the plates 1 and end guards 2. Specifically, by rotating the adjusting bolt 7, it slides within the adjusting groove 8, thereby pushing or pulling the first movable plate 5 and the second movable plate 6, allowing the two side fixing plates 9 to fit against the two side end guards 2. After adjustment, tightening the adjusting bolt 7 locks the two side end guards 2 and plates 1, correcting the plates 1 and end guards 2. The silicone rubber plate 11 further enhances the fixing effect and prevents the device from falling off. After the entire coil is welded, loosening the adjusting bolt 7 allows for easy disassembly of the device for future use.
[0022] In addition, when the silicone rubber sheet 11 needs to be replaced due to wear from excessive use, by pulling the pull plate 15, the pull plate 15 drives the connecting rod 14 to move, and the connecting rod 14 drives the limiting block 13 to slide on the inner wall of the fixed plate 9. At the same time, the spring 16 deforms, and at this time the limiting block 13 no longer limits the sliding plate 10. Then, pull the handle 12, and the handle 12 drives the sliding plate 10 to slide on the inner wall of the fixed plate 9. The sliding plate 10 drives the silicone rubber sheet 11 to move, which facilitates the disassembly and replacement of the silicone rubber sheet 11. After the replacement is completed, release the pull plate 15, and the elastic force of the spring 16 drives the limiting block 13 to reset. At this time, the limiting block 13 limits the sliding plate 10, and the replacement of the silicone rubber sheet 11 is completed.
[0023] In summary, the heat exchanger welding straightening device proposed in this utility model, through the setting of locking components and limiting components, can conveniently adjust the positions of plate 1, end guard plate 2 and sliding plate 10, realize the welding straightening of heat exchanger, improve welding quality and efficiency, and reduce production costs.
[0024] 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 heat exchanger welding straightening device, characterized in that: The device includes a plate (1), with end guards (2) fixedly connected to the left and right ends of the plate (1). A water inlet pipe (3) is fixedly connected to the front left end of the end guard (2), and a water outlet pipe (4) is fixedly connected to the rear left end of the end guard (2). A first movable plate (5) is provided at both the front and rear ends of the end guard (2). A second movable plate (6) is slidably connected to the inner wall of the first movable plate (5). A locking component is provided at the front end of the second movable plate (6). A fixing plate (9) is fixedly connected to the outer rear end of the first movable plate (5) and the second movable plate (6). A sliding plate (10) is slidably connected to the inner wall of the fixing plate (9). A silicone rubber plate (11) is fixedly connected to one end of the inner side of the sliding plate (10). A limit component is provided on the inner wall of the front end of the fixing plate (9).
2. The heat exchanger welding straightening device according to claim 1, characterized in that: The locking assembly includes an adjusting bolt (7) threadedly connected to the front end of the second movable plate (6), and an adjusting groove (8) is provided at the front end of the first movable plate (5). The outer wall of the adjusting bolt (7) is slidably connected to the inner wall of the adjusting groove (8).
3. The heat exchanger welding straightening device according to claim 1, characterized in that: The limiting component includes a limiting block (13) that is slidably connected to the inner wall of the front end of the fixed plate (9). A connecting rod (14) is fixedly connected to the front end of the limiting block (13). A pull plate (15) is fixedly connected to the front end of the connecting rod (14). The limiting block (13) and the inner wall of the fixed plate (9) are connected by a spring (16).
4. The heat exchanger welding straightening device according to claim 3, characterized in that: The left end of the sliding plate (10) is fixedly connected to a handle (12), and the outer wall of the handle (12) is provided with an anti-slip pad.
5. A heat exchanger welding straightening device according to claim 3, characterized in that: The front top of the sliding plate (10) corresponds to the bottom of the limiting block (13).
6. The heat exchanger welding straightening device according to claim 3, characterized in that: One end of the spring (16) is connected to the limiting block (13), and the other end of the spring (16) is connected to the inner wall of the fixing plate (9).
7. The heat exchanger welding straightening device according to claim 1, characterized in that: The outer edge of the fixing plate (9) is relatively small.