Anti-corrosion heater flange connecting structure
The transmission assembly drives the anti-corrosion cover to be fitted onto the flange surface, solving the corrosion problem of the heater connection flange and achieving good corrosion resistance and extended service life.
Patent Information
- Application Number
- CN202520815912.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-27
Smart Images

Figure CN223938933U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of heater technology, specifically a corrosion-resistant heater flange connection structure. Background Technology
[0002] A heater flange connection structure is a mechanical structure that connects a heater to pipelines, equipment, etc., via flanges. It mainly consists of flanges, gaskets, bolts, and nuts. Its core function is to ensure a stable and reliable connection between the heater and the system during operation, preventing media leakage, while facilitating installation, disassembly, and maintenance. This structure allows for the selection of different types of flanges (such as slip-on flanges, weld neck flanges, loose flanges, etc.) and sealing methods (such as smooth surface, raised face, ring joint, etc.) according to the operating environment and media characteristics to adapt to different pressure and temperature requirements. Its applications cover industries such as petroleum, chemical, food, machinery, and power, and it is widely used in heating and insulation systems for various storage tanks, containers, and pipelines.
[0003] The existing heater connection flanges have poor corrosion resistance, which can easily cause corrosion damage during use and reduce their service life. Utility Model Content
[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a corrosion-resistant heater flange connection structure, which effectively solves the problem that the existing heater connection flange has poor corrosion resistance and is prone to corrosion damage during use, thus reducing its service life.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant heater flange connection structure, comprising a heater body, an mounting plate fixedly installed at one end of the lower part of the heater body, a first flange fixedly installed at one end of the heater body, a second flange fixedly installed on one side of the first flange by bolts, a connector fixedly installed in the middle of the second flange, an electric heating tube fixedly installed at one end of the connector, two corrosion-resistant covers sleeved between the surfaces of the first flange and the second flange, a drive motor fixedly installed in the middle of the bottom of the mounting plate by a support plate, a transmission assembly provided at the output end of the drive motor, the transmission assembly being connected to the two corrosion-resistant covers in a transmission connection, and the drive motor outputting power to the two corrosion-resistant covers through the transmission assembly when it is running.
[0006] Preferably, the transmission assembly includes a drive sprocket, which is fixedly installed at the output end of the drive motor. A positioning seat is rotatably installed on the side of the drive sprocket away from the drive motor. The top of the positioning seat is fixedly connected to the mounting plate. A driven sprocket is provided on one side of the drive sprocket. A chain meshes between the driven sprocket and the drive sprocket. A shaft is fixedly installed in the middle of the driven sprocket. Four bushings are rotatably installed on the surface of the shaft. The tops of the four bushings are all fixedly connected to the mounting plate through fixing rods.
[0007] Preferably, both ends of the shaft are fixedly mounted with driving bevel gears, one side of the surface of each driving bevel gear is meshed with a driven bevel gear, one side of each driven bevel gear is rotatably mounted with a rotating seat, the top of each rotating seat is fixedly connected to the bottom of the mounting plate, the other side of each driven bevel gear is fixedly mounted with a transmission gear, one end of each transmission gear is rotatably mounted with a shaft seat, the top of each shaft seat is fixedly connected to the mounting plate.
[0008] Preferably, the upper part of each of the transmission gears is meshed with a rack, the surface of the mounting plate has two limiting grooves, the top of each of the two racks is fixedly mounted with a support arm, the two support arms are inserted into the two limiting grooves, the top of each of the two support arms is fixedly connected to two anti-corrosion covers respectively, each of the two support arms has a sliding hole, the inside of each of the two sliding holes is inserted with a sliding rod, and the ends of the two sliding rods that are far apart from each other are fixedly connected to the top of the mounting plate through a support bar.
[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: When in use, the operator inserts the connector and electric heating tube into the interior of the heater body, and after fixing the second flange to the first flange with bolts, starts the drive motor. When the drive motor runs, it drives the active sprocket to rotate along the positioning seat. When the active sprocket rotates, it drives the driven sprocket to rotate through the chain. When the driven sprocket rotates, it drives the shaft to rotate inside the four bushings. When the shaft rotates, it drives the two driven bevel gears to rotate along the two rotating seats through the two active bevel gears.
[0010] When the two driven bevel gears rotate, they drive the two transmission gears to rotate along the two shaft seats. When the two transmission gears rotate, they drive the two racks to move towards each other. When the two racks move towards each other, they drive the two support arms to slide along the inside of the two limiting grooves. At the same time, through the cooperation of the two sliding holes, the two support arms slide along the surface of the two sliding rods, which increases the stability of the two support arms when they move. When the two support arms move towards each other, they drive the two anti-corrosion covers to the surface of the first flange and the second flange for protection, thereby ensuring the corrosion resistance of the first flange and the second flange. This gives the heater connecting flange good corrosion resistance, avoids corrosion damage to the connecting flange during use, and improves its service life. Attached Figure Description
[0011] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0012] In the attached diagram:
[0013] Figure 1 This is a schematic diagram of the flange connection structure of the corrosion-resistant heater of this utility model. Figure 1 ;
[0014] Figure 2 This is a schematic diagram of the flange connection structure of the corrosion-resistant heater of this utility model. Figure 2 ;
[0015] Figure 3 This is a schematic diagram of the flange connection structure of the corrosion-resistant heater of this utility model. Figure 3 ;
[0016] Figure 4 This is a schematic diagram of the internal structure of the heater body of this utility model;
[0017] Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0018] In the diagram: 1. Heater body; 2. Slide rod; 3. Slide hole; 4. Support arm; 5. Connector; 6. Electric heating tube; 7. First flange; 8. Second flange; 9. Anti-corrosion cover; 10. Support plate; 11. Drive motor; 12. Drive sprocket; 13. Positioning seat; 14. Mounting plate; 15. Driven sprocket; 16. Chain; 17. Shaft; 18. Bushing; 19. Fixed rod; 20. Drive bevel gear; 21. Driven bevel gear; 22. Rotating seat; 23. Transmission gear; 24. Shaft seat; 25. Limiting groove; 26. Rack; 27. Support bar. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0020] Depend on Figures 1 to 5 The present invention includes a heater body 1, a mounting plate 14 fixedly installed at one end of the lower part of the heater body 1, a first flange 7 fixedly installed at one end of the heater body 1, a second flange 8 fixedly installed on one side of the first flange 7 by bolts, a connector 5 fixedly installed in the middle of the second flange 8, an electric heating tube 6 fixedly installed at one end of the connector 5, two anti-corrosion covers 9 sleeved between the surfaces of the first flange 7 and the second flange 8, a drive motor 11 fixedly installed in the middle of the bottom of the mounting plate 14 by a support plate 10, a transmission assembly provided at the output end of the drive motor 11, the transmission assembly being connected to the two anti-corrosion covers 9, and the drive motor 11 outputting power to the two anti-corrosion covers 9 through the transmission assembly when it is running.
[0021] In use, the operator inserts the connector 5 and the electric heating tube 6 into the heater body 1, and then fixes the second flange 8 to the first flange 7 with bolts. After that, the operator starts the drive motor 11. When the drive motor 11 is running, it drives the transmission component to run. When the transmission component is running, it drives the two anti-corrosion covers 9 to be put on the surfaces of the first flange 7 and the second flange 8 for protection, thereby ensuring the corrosion resistance of the first flange 7 and the second flange 8. This gives the heater connecting flange good corrosion resistance, avoids corrosion damage to the connecting flange during use, and improves its service life.
[0022] The transmission assembly includes a drive sprocket 12, which is fixedly mounted on the output end of the drive motor 11. A positioning seat 13 is rotatably mounted on the side of the drive sprocket 12 away from the drive motor 11. The top of the positioning seat 13 is fixedly connected to the mounting plate 14. A driven sprocket 15 is provided on one side of the drive sprocket 12. A chain 16 is meshed between the driven sprocket 15 and the drive sprocket 12. A shaft 17 is fixedly mounted in the middle of the driven sprocket 15. Four bushings 18 are rotatably mounted on the surface of the shaft 17. The tops of the four bushings 18 are fixedly connected to the mounting plate 14 through a fixing rod 19.
[0023] When the drive motor 11 is running, it drives the drive sprocket 12 to rotate along the positioning seat 13. When the drive sprocket 12 rotates, it drives the driven sprocket 15 to rotate through the chain 16. When the driven sprocket 15 rotates, it drives the shaft 17 to rotate inside the four bushings 18.
[0024] Both ends of the shaft 17 are fixedly mounted with driving bevel gears 20. One side of the surface of each driving bevel gear 20 is meshed with a driven bevel gear 21. One side of each driven bevel gear 21 is rotatably mounted with a rotating seat 22. The top of each rotating seat 22 is fixedly connected to the bottom of the mounting plate 14. The other side of each driven bevel gear 21 is fixedly mounted with a transmission gear 23. One end of each transmission gear 23 is rotatably mounted with a bearing seat 24. The top of each bearing seat 24 is fixedly connected to the mounting plate 14.
[0025] When the shaft 17 rotates, it drives two driven bevel gears 21 to rotate along the two rotating seats 22 through two driving bevel gears 20. When the two driven bevel gears 21 rotate, they drive two transmission gears 23 to rotate along the two shaft seats 24.
[0026] The upper part of the transmission gear 23 is meshed with a rack 26. The surface of the mounting plate 14 has two limiting grooves 25. The top of the two racks 26 is fixedly mounted with a support arm 4. The two support arms 4 are inserted into the inside of the two limiting grooves 25. The top of the two support arms 4 is fixedly connected to two anti-corrosion covers 9 respectively. The two support arms 4 are provided with sliding holes 3. The sliding rods 2 are inserted into the inside of the two sliding holes 3. The ends of the two sliding rods 2 that are far apart from each other are fixedly connected to the top of the mounting plate 14 through a support bar 27.
[0027] When the two transmission gears 23 rotate, they drive the two racks 26 to move towards each other. When the two racks 26 move towards each other, they drive the two support arms 4 to slide along the inside of the two limiting grooves 25. At the same time, the two support arms 4 slide along the surface of the two sliding rods 2 through the cooperation of the two sliding holes 3, which increases the stability of the two support arms 4 when they move. When the two support arms 4 move towards each other, they drive the two anti-corrosion covers 9 to be fitted onto the surface of the first flange 7 and the second flange 8 for protection.
Claims
1. A corrosion-resistant heater flange connection structure, comprising a heater body (1), characterized in that: A mounting plate (14) is fixedly installed at one end of the lower part of the heater body (1). A first flange (7) is fixedly installed at one end of the heater body (1). A second flange (8) is fixedly installed on one side of the first flange (7) by bolts. A connector (5) is fixedly installed in the middle of the second flange (8). An electric heating tube (6) is fixedly installed at one end of the connector (5). Two anti-corrosion covers (9) are sleeved between the surfaces of the first flange (7) and the second flange (8). A drive motor (11) is fixedly installed in the middle of the bottom of the mounting plate (14) by a support plate (10). A transmission component is provided at the output end of the drive motor (11). The transmission component is connected to the two anti-corrosion covers (9) in a transmission connection. When the drive motor (11) is running, it outputs power to the two anti-corrosion covers (9) through the transmission component.
2. The anti-corrosion heater flange connection structure according to claim 1, characterized in that: The transmission assembly includes a drive sprocket (12), which is fixedly installed at the output end of the drive motor (11). A positioning seat (13) is rotatably installed on the side of the drive sprocket (12) away from the drive motor (11). The top of the positioning seat (13) is fixedly connected to the mounting plate (14). A driven sprocket (15) is provided on one side of the drive sprocket (12). A chain (16) meshes between the driven sprocket (15) and the drive sprocket (12). A shaft (17) is fixedly installed in the middle of the driven sprocket (15). Four bushings (18) are rotatably installed on the surface of the shaft (17). The tops of the four bushings (18) are all fixedly connected to the mounting plate (14) through a fixing rod (19).
3. The anti-corrosion heater flange connection structure according to claim 2, characterized in that: Both ends of the shaft (17) are fixedly mounted with driving bevel gears (20). One side of the surface of the driving bevel gears (20) is meshed with driven bevel gears (21). One side of each driven bevel gear (21) is rotatably mounted with a rotating seat (22). The top of each rotating seat (22) is fixedly connected to the bottom of the mounting plate (14). The other side of each driven bevel gear (21) is fixedly mounted with a transmission gear (23). One end of each transmission gear (23) is rotatably mounted with a bearing seat (24). The top of each bearing seat (24) is fixedly connected to the mounting plate (14).
4. The anti-corrosion heater flange connection structure according to claim 3, characterized in that: The upper part of the transmission gear (23) is meshed with a rack (26). The surface of the mounting plate (14) has two limiting grooves (25). The top of the two racks (26) is fixedly installed with support arms (4). The two support arms (4) are inserted into the inside of the two limiting grooves (25). The top of the two support arms (4) is fixedly connected to two anti-corrosion covers (9). The two support arms (4) are provided with sliding holes (3). The sliding rods (2) are inserted into the inside of the two sliding holes (3). The ends of the two sliding rods (2) that are far apart from each other are fixedly connected to the top of the mounting plate (14) through support bars (27).