Self-cleaning finned tube convenient to disassemble and assemble
By designing an easy-to-disassemble finned tube structure, the problems of difficult cleaning and individual replacement of finned tubes are solved, enabling rapid disassembly and cleaning, improving maintenance efficiency and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU DINGXIANG ENERGY SAVING TECH CO LTD
- Filing Date
- 2025-09-11
- Publication Date
- 2026-07-31
AI Technical Summary
Existing finned tubes are difficult to thoroughly rinse during maintenance and cleaning, and damaged fins cannot be replaced individually, resulting in wasted resources and economic losses.
A structure comprising a tube body, end caps, fins, a movable ring, a fixed ring, a connecting ring, and a control mechanism is designed. The fins are easily assembled and disassembled through threaded rods and gear meshing, while stability and convenience are ensured by using a control ring and a threaded locking rod.
It enables quick disassembly and individual replacement of fins, improving maintenance efficiency, reducing operating costs, and ensuring good heat exchange efficiency.
Smart Images

Figure CN224580790U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of finned tube technology, specifically to a self-cleaning finned tube that is easy to disassemble and assemble. Background Technology
[0002] Finned tubes, as the core heat transfer element in heat exchange equipment, can significantly increase the heat transfer area and improve heat transfer efficiency by adding fins to the outer surface of their base tubes. However, under actual operating conditions, dust, scale, oil and other deposits easily accumulate on the fin surface, directly leading to a decrease in heat transfer efficiency. Traditional manufacturing processes generally use welding to permanently connect the fins to the tube body. During maintenance and cleaning, even with a high-pressure water gun, it is difficult to thoroughly clean the gaps between the fins. Furthermore, when some fins are damaged, they cannot be replaced individually, often requiring the entire finned tube to be scrapped and replaced, resulting in a huge waste of resources and economic losses. Therefore, there is an urgent need for a self-cleaning finned tube that is easy to disassemble and assemble. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings and deficiencies of the existing technology by providing a reasonably designed, easy-to-disassemble self-cleaning finned tube to solve the aforementioned problems.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: it comprises a tube body and end caps, with end caps fixedly installed at both ends of the tube body; It also includes: The fins are of several types and are respectively abutted in the mounting grooves with equally rounded corners distributed on the outer annular wall of the tube. Insert blocks are fixedly installed on both the left and right sides of the fins. The movable ring is movably fitted onto the left end cap, and a fixed ring is fixedly fitted onto the right end cap. The left and right side inserts are respectively movably inserted into the slots opened on the movable ring and the fixed ring. A connecting ring is fixedly sleeved on the left end cap. Several threaded rods with equal rounded corners are rotatably connected to the right side wall of the connecting ring via bearings. The threaded rods are threaded and rotated through the movable ring. The connecting ring is equipped with a control mechanism that connects to the threaded rods.
[0005] Furthermore, the control mechanism includes: The control ring is rotatably mounted on the connecting ring via a bearing. An internal gear ring is fixedly installed on the inner ring wall of the control ring, and the internal gear ring is movably installed in a groove opened on the outer ring wall of the connecting ring. The gears, which are several in number, are fixedly sleeved on the left end of several threaded rods, and all of the gears are meshed with the internal gear ring.
[0006] Furthermore, a threaded locking rod is threaded through the left side wall of the control ring, and a limiting groove that cooperates with the threaded locking rod is provided on the left side wall of the connecting ring.
[0007] Furthermore, a rubber ring is fixedly sleeved on the control ring, and the rubber ring has anti-slip texture.
[0008] Furthermore, several guide strips with rounded corners are distributed on the left end cap at the right side of the connecting ring, and guide grooves that cooperate with the guide strips are provided on the inner ring wall of the movable ring.
[0009] Furthermore, a retaining ring is fixedly sleeved on the left end cap, and the right end of the threaded rod is rotatably connected to the retaining ring via a thread.
[0010] Compared with the prior art, the beneficial effects of this utility model are: the self-cleaning finned tube that is easy to disassemble and install can not only realize the quick disassembly and individual replacement of fins, significantly improving maintenance efficiency and reducing usage costs, but also make it easier to clean the fins in the disassembled state, so as to ensure good heat exchange efficiency. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model.
[0012] Figure 2 This is an exploded view of the tube body, end cap, fins, insert block, and retaining ring of this utility model.
[0013] Figure 3 This is an exploded view of the movable ring, connecting ring, threaded rod, and control ring in this utility model.
[0014] Figure 4 This is a cross-sectional view of the connecting ring in this utility model.
[0015] Explanation of reference numerals in the attached figures: 1. Pipe body; 2. End cap; 3. Fin; 4. Insert block; 5. Movable ring; 6. Fixed ring; 7. Slot; 8. Connecting ring; 9. Threaded rod; 10. Control mechanism; 10-1. Control ring; 10-2. Internal gear ring; 10-3. Ring groove; 10-4. Gear; 11. Guide bar; 12. Guide groove; 13. Threaded locking rod; 14. Limiting groove; 15. Rubber ring; 16. Stabilizing ring. Detailed Implementation
[0016] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0017] like Figures 1-4As shown, the specific embodiment adopts the following technical solution: it includes a tube body 1 and an end cap 2, and the end cap 2 is fixedly provided at both ends of the tube body 1; It also includes: Fins 3, there are several fins 3, which are respectively abutted in the mounting grooves with equally rounded corners on the outer ring wall of the tube body 1. Insert blocks 4 are fixedly installed on both the left and right sides of the fins 3. The movable ring 5 is movably fitted onto the left end cap 2, and the right end cap 2 is fixedly fitted with a fixed ring 6. The left and right side inserts 4 are respectively movably inserted into the slots 7 opened on the movable ring 5 and the fixed ring 6. Several guide strips 11 are evenly distributed with rounded corners on the left end cap 2 at the right side position of the connecting ring 8. The inner ring wall of the movable ring 5 is provided with guide grooves 12 that cooperate with the guide strips 11. The guide strips 11 can provide auxiliary guidance for the movement of the movable ring 5, thereby ensuring the stability of the movement of the movable ring 5. A connecting ring 8 is fixedly sleeved on the left end cap 2. Several threaded rods 9 are rotatably connected to the right side wall of the connecting ring 8 by bearings with equal rounded corners. The threaded rods 9 are threaded and rotated through the movable ring 5. The connecting ring 8 is provided with a control mechanism 10 connected to the threaded rods 9. A stabilizing ring 16 is fixedly sleeved on the left end cap 2. The right end of the threaded rod 9 is rotatably connected to the stabilizing ring 16 by threads. The stabilizing ring 16 can provide support for the right end of the threaded rod 9, thereby effectively improving the rotational stability of the threaded rod 9. The control mechanism 10 includes: A control ring 10-1 is rotatably mounted on a connecting ring 8 via a bearing. An internal gear ring 10-2 is fixedly installed on the inner ring wall of the control ring 10-1. The internal gear ring 10-2 is movably mounted in a groove 10-3 on the outer ring wall of the connecting ring 8. A rubber ring 15 is fixedly mounted on the control ring 10-1. The rubber ring 15 has anti-slip texture. The cooperation between the rubber ring 15 and the anti-slip texture can not only improve the comfort of the operator's hand when rotating the control ring 10-1, but also reduce the occurrence of hand slippage. Gears 10-4, several of which are fixedly sleeved on the left ends of several threaded rods 9, and all gears 10-4 mesh with the internal gear ring 10-2. The control mechanism 10 can realize the synchronous rotation of several threaded rods 9, which not only realizes the convenient movement of the movable ring 5, but also ensures the stability of the movement of the movable ring 5, thereby realizing the convenient installation and removal of several fins 3. A threaded locking rod 13 is threadedly inserted through the left side wall of the control ring 10-1. A limiting groove 14 that cooperates with the threaded locking rod 13 is opened on the left side wall of the connecting ring 8. The threaded locking rod 13 can limit the control ring 10-1 on the connecting ring 8, preventing the control ring 10-1 from being rotated at will and causing the fins 3 to loosen after installation.
[0018] When using this utility model, rotate the threaded locking rod 13 so that one end of it disengages from the limiting groove 14. Then, rotate the control ring 10-1. The control ring 10-1 drives the internal gear ring 10-2 to rotate. The internal gear ring 10-2 drives several gears 10-4 to rotate synchronously. The gears 10-4 drive the threaded rod 9 to rotate, causing the movable ring 5 to move to the left, so that the left insert 4 disengages from the slot 7 on the movable ring 5. Then, the fin 3 can be moved to the left, so that the right insert 4 disengages from the slot 7 on the fixed ring 6. After that, the fin 3 can be removed from the mounting groove. When fin 3 needs to be installed, fin 3 is pressed against the installation groove and pushed to the right so that the right-side insert 4 is inserted into the slot 7 on the fixing ring 6. Then, the control ring 10-1 is rotated in the opposite direction. The control ring 10-1 drives the internal gear ring 10-2 to rotate in the opposite direction. The internal gear ring 10-2 drives several gears 10-4 to rotate in the opposite direction synchronously. The gears 10-4 drive the threaded rod 9 to rotate in the opposite direction, so that the movable ring 5 moves to the right so that the left-side insert 4 is inserted into the slot 7 on the movable ring 5, thus realizing the convenient installation of fin 3 on the tube body 1. Afterwards, the threaded locking rod 13 can be rotated in the opposite direction so that one end is inserted into the limiting groove 14 to limit the rotation of the control ring 10-1.
[0019] Compared with the prior art, the beneficial effects of this utility model are: With the cooperation of the control mechanism 10, by simply rotating the control ring 10-1, the synchronous rotation of several threaded rods 9 can be achieved, causing the movable ring 5 to move and all fins 3 to be unlocked synchronously. This facilitates the loading and unloading of several fins 3. The independent disassembly feature of the fins 3 not only allows for selective replacement of damaged units, but also makes it easy for both the fins 3 and the tube body 1 to achieve a good cleaning effect. The threaded locking rod 13 can be used to limit the control ring 10-1 on the connecting ring 8. After the fin 3 is installed, the control ring 10-1 is locked to prevent the control ring 10-1 from rotating randomly due to vibration and other factors, which could cause the fin 3 to loosen. The stabilizing ring 16 can provide support for the right end of the threaded rod 9, thereby effectively improving the rotational stability of the threaded rod 9; The guide bar 11 can provide auxiliary guidance for the movement of the movable ring 5, thereby ensuring the stability of the movement of the movable ring 5.
[0020] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A self-cleaning finned tube that is easy to disassemble and assemble, comprising a tube body (1) and end caps (2), wherein end caps (2) are fixedly provided at both ends of the tube body (1). characterized in that It also includes: Fins (3), there are several fins (3), which are respectively abutted in the mounting grooves with equal rounded corners on the outer ring wall of the tube body (1). Insert blocks (4) are fixedly provided on both the left and right sides of the fins (3). The movable ring (5) is movably fitted on the left end cap (2), and the right end cap (2) is fixedly fitted with a fixed ring (6). The left and right side inserts (4) are respectively movably inserted into the slots (7) opened on the movable ring (5) and the fixed ring (6). The connecting ring (8) is fixedly sleeved on the end cap (2) on the left side. Several threaded rods (9) are rotatably connected to the right side wall of the connecting ring (8) through bearings. The threaded rods (9) are rotatably threaded onto the movable ring (5). The connecting ring (8) is provided with a control mechanism (10) connected to the threaded rods (9).
2. The self-cleaning finned tube according to claim 1, wherein: The control mechanism (10) includes: The control ring (10-1) is rotatably mounted on the connecting ring (8) via a bearing. An internal gear ring (10-2) is fixedly installed on the inner ring wall of the control ring (10-1). The internal gear ring (10-2) is movably installed in the annular groove (10-3) opened on the outer ring wall of the connecting ring (8). Gears (10-4), there are several gears (10-4), which are fixedly sleeved on the left end of several threaded rods (9), and the several gears (10-4) are all meshed with the internal gear ring (10-2).
3. The self-cleaning finned tube according to claim 2, wherein: A threaded locking rod (13) is threaded through the left side wall of the control ring (10-1) and a limiting groove (14) that cooperates with the threaded locking rod (13) is provided on the left side wall of the connecting ring (8).
4. The self-cleaning finned tube according to claim 2, wherein: A rubber ring (15) is fixedly sleeved on the control ring (10-1), and the rubber ring (15) is provided with anti-slip texture.
5. The self-cleaning finned tube according to claim 1, wherein: Several guide strips (11) are distributed with rounded corners on the left end cap (2) at the right side of the connecting ring (8), and a guide groove (12) that matches the guide strips (11) is provided on the inner ring wall of the movable ring (5).
6. The self-cleaning finned tube of easy disassembly according to claim 1, characterized in that: A retaining ring (16) is fixedly sleeved on the end cap (2) on the left side, and the right end of the threaded rod (9) is rotatably connected to the retaining ring (16) through a thread.