A kind of air-cooled fin heat exchanger fin coating spraying device

Abstract

The utility model discloses a kind of air-cooled fin heat exchanger fin coating spraying devices, including mounting bracket, multiple groups equidistance distribution adjusting frame are slidably installed on the mounting bracket, mounting rod is fixedly installed on the mounting bracket, two groups of symmetric distribution first adjusting rod are slidably installed in the mounting rod, second adjusting rod is slidably installed in the first adjusting rod of two groups, two-way screw rod is rotatably installed in the mounting rod, the limiting groove of its both ends drives the synchronous rotation of the limiting block in screw pipe when two-way screw rod rotates, make two groups first adjusting rod reverse sliding along mounting rod;Meanwhile, screw pipe and the thread cooperation of second adjusting rod promote second adjusting rod telescopic motion in corresponding first adjusting rod, realize the synchronous unfolding or folding of all adjusting frame by the linkage effect of cross connecting rod, ensure that nozzle spacing and fin spacing dynamically match.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger fin coating spraying technology, specifically to a fin coating spraying device for air-cooled finned heat exchangers. Background Technology

[0002] Air-cooled finned heat exchangers are key heat exchange equipment widely used in industrial fields, and their performance directly affects the energy utilization efficiency and production stability of industries such as power, chemical, and metallurgy. As the core heat transfer element of the heat exchanger, the fins are exposed to harsh environments such as high temperatures, corrosive gases, or dust for extended periods, making them prone to corrosion, dust accumulation, and scaling, leading to decreased heat exchange efficiency and shortened equipment lifespan. To improve the durability and functionality of the fins, modern industry commonly employs surface coating technology, using anti-corrosion coatings, wear-resistant coatings, or special functional coatings to enhance the fins' corrosion resistance, wear resistance, and surface properties.

[0003] In existing technologies, finned heat exchangers have diverse fin spacing, height, and arrangement. However, traditional spraying devices have fixed nozzle positions, making it difficult to adjust the spraying range according to different fin specifications. This results in uneven coating coverage, with missed or overlapping spraying. Since the nozzles are not replaceable or difficult to adjust, the entire spraying module must be replaced when switching to different coatings, affecting production efficiency. Furthermore, the nozzle supports of existing spraying devices are usually spaced at fixed intervals, which cannot accommodate nozzles of different sizes, limiting the spraying effect and making it difficult to optimize coating uniformity. Utility Model Content

[0004] The purpose of this invention is to provide a fin coating spraying device for air-cooled finned heat exchangers to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fin coating spraying device for an air-cooled finned heat exchanger, comprising a mounting frame, on which multiple sets of equidistantly distributed adjusting frames are slidably mounted; a mounting rod is fixedly mounted on the mounting frame; two sets of symmetrically distributed first adjusting rods are slidably mounted within the mounting rods; a second adjusting rod is slidably mounted within each of the two sets of first adjusting rods; the ends of the two sets of second adjusting rods furthest from the mounting rods are fixedly connected to the corresponding outermost adjusting frame; two sets of cross-distributed connecting rods are rotatably mounted on each of the multiple sets of adjusting frames; the ends of the two sets of connecting rods on adjacent sets of adjusting frames are rotatably connected by a rotating shaft; a bidirectional screw is rotatably mounted within the mounting rods; a solenoid is rotatably mounted within each of the two sets of first adjusting rods; a fixed seat is fixedly mounted on the adjusting frame; a mounting seat is fixedly mounted on the fixed seat; and multiple sets of annularly distributed limiting plates are provided within the fixed seat.

[0006] As a further preferred embodiment of this technical solution, the two ends of the bidirectional screw pass through two sets of first adjusting rods and are threadedly connected to the two sets of first adjusting rods respectively, and the two sets of screw tubes pass through the corresponding second adjusting rods and are threadedly connected to the second adjusting rods respectively.

[0007] As a further preferred embodiment of this technical solution, the bidirectional screw is provided with two sets of symmetrically distributed limiting grooves, and each of the two sets of screw tubes is provided with two sets of symmetrically distributed limiting blocks. The limiting blocks are correspondingly arranged with the limiting grooves, and the two sets of screw tubes are slidably sleeved with the bidirectional screw through the limiting blocks and limiting grooves.

[0008] As a further preferred embodiment of this technical solution, an installation ring is rotatably installed inside the fixed base, and multiple sets of limiting plates are rotatably connected to the fixed base through installation shafts. Multiple sets of installation shafts are slidably distributed around the installation ring, and gears are sleeved on multiple sets of installation shafts. A first toothed ring is sleeved on the installation ring, and multiple sets of gears are meshed with the first toothed ring.

[0009] As a further preferred embodiment of this technical solution, an adjusting disc is rotatably mounted inside the mounting base, a second toothed ring is sleeved on the adjusting disc, a driving wheel is rotatably mounted inside the mounting base, the driving wheel is meshed with the second toothed ring, three sets of ring-shaped locking rods are provided inside the mounting base, and three sets of ring-shaped guide rails are fixedly mounted inside the mounting base, with each of the three sets of locking rods slidably connected to the corresponding guide rail.

[0010] As a further preferred embodiment of this technical solution, the adjusting plate is provided with three sets of annularly distributed guide grooves, the three sets of guide grooves are correspondingly arranged with three sets of locking rods, and each of the three sets of locking rods is fixedly installed with a guide rod, the guide rod being slidably connected to the adjusting plate through the corresponding guide groove.

[0011] This utility model provides a fin coating spraying device for air-cooled finned heat exchangers, which has the following beneficial effects:

[0012] (1) This utility model achieves precise equidistant adjustment of the spacing between multiple sets of adjustment frames through the linkage design of bidirectional screw and spiral tube. When the bidirectional screw rotates, the limiting grooves at both ends drive the limiting blocks in the spiral tube to rotate synchronously, so that the two sets of first adjustment rods slide in opposite directions along the mounting rod. At the same time, the threaded engagement between the spiral tube and the second adjustment rod pushes the second adjustment rod to extend and retract within the corresponding first adjustment rod. Through the linkage of the cross connecting rod, all adjustment frames can be opened or closed synchronously, ensuring dynamic matching between the nozzle spacing and the fin spacing, avoiding the problem of uneven coating coverage caused by traditional fixed brackets, and ensuring maximum coverage of heat exchanger fins during a single spraying process, reducing the situation of uneven coating thickness caused by repeated spraying.

[0013] (2) The mounting base of this utility model adopts a multi-stage transmission mechanism to achieve rapid nozzle replacement and precise positioning. The mounting ring drives multiple sets of limiting plates to deflect synchronously through a gear set, forming an adaptive clamping surface. At the same time, the adjusting disc, through the transmission of the second gear ring, causes three sets of guide rods to move along the guide groove, driving the clamping rod to slide radially within the guide rail. This dual-drive system enables nozzles of different diameters to achieve a dual fixing effect of three-point positioning and circumferential limiting, ensuring that the nozzle does not shake during the spraying process and enabling the nozzle replacement operation to be completed in a short time, significantly improving the efficiency of multi-coating switching. In particular, the synergistic effect of the limiting plate and the clamping rod can accommodate various fan-shaped and conical nozzles within a certain diameter range. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the mounting rod of this utility model;

[0016] Figure 3 For the present utility model Figure 2 Enlarged view of the structure at point A;

[0017] Figure 4 This is a schematic diagram showing the structural separation of the fixing base and the mounting base of this utility model;

[0018] Figure 5 For the present utility model Figure 4 Enlarged view of the structure at point -B;

[0019] In the diagram: 1. Mounting bracket; 2. Mounting rod; 3. First adjusting rod; 4. Second adjusting rod; 5. Adjusting bracket; 6. Two-way screw; 7. Limiting groove; 8. Screw tube; 9. Limiting block; 10. Connecting rod; 11. Fixed seat; 12. Mounting seat; 13. Mounting ring; 14. First gear ring; 15. Limiting plate; 16. Mounting shaft; 17. Gear; 18. Adjusting disc; 19. Locking rod; 20. Guide rod; 21. Guide groove; 22. Second gear ring; 23. Drive wheel; 24. Guide rail. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] This utility model provides a technical solution: such as Figure 1 , Figure 2 and Figure 3As shown in this embodiment, an air-cooled finned heat exchanger fin coating spraying device includes a mounting frame 1. Multiple sets of equidistantly distributed adjusting frames 5 are slidably mounted on the mounting frame 1. A mounting rod 2 is fixedly mounted on the mounting frame 1. Two sets of symmetrically distributed first adjusting rods 3 are slidably mounted inside the mounting rod 2. Second adjusting rods 4 are slidably mounted inside each of the two sets of first adjusting rods 3. The ends of the two sets of second adjusting rods 4 furthest from the mounting rod 2 are fixedly connected to the corresponding outermost adjusting frame 5. Two sets of cross-distributed adjusting rods are rotatably mounted on each of the multiple sets of adjusting frames 5. The connecting rod 10 on the two sets of connecting rods 10 on the two adjacent sets of adjusting frames 5 are rotatably connected by a rotating shaft. A bidirectional screw 6 is rotatably installed inside the mounting rod 2. A screw tube 8 is rotatably installed inside each of the two sets of first adjusting rods 3. A fixed seat 11 is fixedly installed on the adjusting frame 5. A mounting seat 12 is fixedly installed on the fixed seat 11. The fixed seat 11 is provided with multiple sets of annularly distributed limiting plates 15. The two ends of the bidirectional screw 6 pass through the two sets of first adjusting rods 3 respectively and are threadedly connected to the two sets of first adjusting rods 3 respectively. The two sets of screw tubes 8 pass through the two sets of first adjusting rods 3 respectively. The corresponding second adjusting rod 4 is threaded through and connected to the second adjusting rod 4. Two sets of symmetrically distributed limiting grooves 7 are provided on the bidirectional screw 6. Two sets of symmetrically distributed limiting blocks 9 are provided inside each of the two sets of screw tubes 8. The limiting blocks 9 are correspondingly arranged with the limiting grooves 7. Both sets of screw tubes 8 are slidably sleeved with the bidirectional screw 6 through the limiting blocks 9 and the limiting grooves 7. When adjusting the nozzle spacing, the operator rotates the bidirectional screw 6, and the limiting grooves 7 at both ends engage with the limiting blocks 9 inside the screw tubes 8, causing the two sets of screw tubes 8 to rotate synchronously. Because the screw tubes 8 and the second... The adjusting rod 4 is threadedly engaged. Driven by the screw tube 8, the second adjusting rod 4 moves telescopically along the first adjusting rod 3. At the same time, the bidirectional screw 6, threadedly engaged with the first adjusting rod 3, pushes the two sets of first adjusting rods 3 to slide in opposite directions along the mounting rod 2. The linkage displacement of the first adjusting rod 3 and the second adjusting rod 4 is transmitted to all adjusting frames 5 through the cross-distributed connecting rods 10, so that multiple sets of adjusting frames 5 can be synchronously and equidistantly expanded or retracted, thereby accurately matching the heat exchanger structure with different fin spacing, ensuring full coverage of the spraying range, and avoiding coating overlap or missed spraying.

[0022] like Figure 4 and Figure 5As shown, a mounting ring 13 is rotatably installed inside the fixed base 11. Multiple sets of limiting plates 15 are rotatably connected to the fixed base 11 via mounting shafts 16. Multiple sets of mounting shafts 16 are slidably distributed around the mounting ring 13. Gears 17 are sleeved on each set of mounting shafts 16. A first toothed ring 14 is sleeved on the mounting ring 13. Multiple sets of gears 17 are meshed with the first toothed ring 14. An adjusting plate 18 is rotatably installed inside the mounting base 12. A second toothed ring 22 is sleeved on the adjusting plate 18. A drive wheel 23 is rotatably installed inside the mounting base 12. The drive wheel 23 is meshed with the second toothed ring 22. Three sets of annularly distributed locking rods 19 are provided inside the mounting base 12. Three sets of annularly distributed guide rails 24 are fixedly installed inside the mounting base 12. The three sets of locking rods 19 are slidably connected to the corresponding guide rails 24. Three sets of annularly distributed guide grooves 21 are opened on the adjusting plate 18. The guide groove 21 is correspondingly set with three sets of clamping rods 19. Each set of clamping rods 19 is fixedly mounted with a guide rod 20. The guide rod 20 is slidably connected to the adjusting plate 18 through the corresponding guide groove 21. When changing the nozzle, the drive mechanism in the fixed base 11 drives the mounting ring 13 to rotate. Through the meshing transmission of the first toothed ring 14 and the gear 17, multiple sets of limiting plates 15 are deflected synchronously to form a flexible clamp on the outer periphery of the nozzle. At the same time, the drive wheel 23 in the mounting base 12 drives the second toothed ring 22 to rotate, causing the adjusting plate 18 to rotate. The three sets of guide rods 20 slide along the guide groove 21, pushing the clamping rods 19 to move radially along the guide rail 24, locking the nozzle from the inside. The synergistic effect of the limiting plate 15 and the clamping rods 19 ensures that nozzles of different specifications can be stably fixed, ensuring no deviation during the spraying process, while also achieving quick disassembly and assembly, and improving the efficiency of switching between different coatings.

[0023] This utility model provides a fin coating spraying device for air-cooled finned heat exchangers. The specific working principle is as follows: When adjusting the nozzle spacing, the operator rotates the bidirectional screw 6. The limiting grooves 7 at both ends engage with the limiting blocks 9 inside the screw tube 8, causing the two sets of screw tubes 8 to rotate synchronously. Due to the threaded engagement between the screw tube 8 and the second adjusting rod 4, the second adjusting rod 4 moves along the first adjusting rod 3 under the drive of the screw tube 8. Simultaneously, the threaded engagement between the bidirectional screw 6 and the first adjusting rod 3 pushes the two sets of first adjusting rods 3 to slide in opposite directions along the mounting rod 2. The linked displacement of the first adjusting rod 3 and the second adjusting rod 4 is transmitted to all adjusting frames 5 through the cross-distributed connecting rods 10, causing multiple sets of adjusting frames 5 to expand or retract synchronously at equal intervals, thereby precisely matching different fins. The spaced heat exchanger structure ensures full coverage of the spraying area, avoiding coating overlap or missed spraying. When changing the nozzle, the drive mechanism in the mounting base 11 drives the mounting ring 13 to rotate. Through the meshing transmission of the first toothed ring 14 and the gear 17, multiple sets of limiting plates 15 are deflected synchronously, forming a flexible clamp on the outer periphery of the nozzle. At the same time, the drive wheel 23 in the mounting base 12 drives the second toothed ring 22 to rotate, causing the adjusting plate 18 to rotate. The three sets of guide rods 20 slide along the guide groove 21, pushing the locking rod 19 to move radially along the guide rail 24, locking the nozzle from the inside. The synergistic effect of the limiting plate 15 and the locking rod 19 ensures that nozzles of different specifications can be stably fixed, ensuring no deviation during the spraying process, while also achieving quick disassembly and assembly, improving the efficiency of switching between different coatings.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 fin coating spraying device for an air-cooled finned heat exchanger, comprising a mounting frame (1), characterized in that: Multiple sets of equidistantly distributed adjustment frames (5) are slidably installed on the mounting frame (1). An installation rod (2) is fixedly installed on the mounting frame (1). Two sets of symmetrically distributed first adjustment rods (3) are slidably installed inside the installation rod (2). A second adjustment rod (4) is slidably installed inside each of the two sets of first adjustment rods (3). The ends of the two sets of second adjustment rods (4) away from the installation rod (2) are fixedly connected to the outermost corresponding adjustment frame (5). Two sets of cross-distributed connecting rods (10) are rotatably installed on each of the multiple sets of adjustment frames (5). The ends of the two sets of connecting rods (10) on adjacent sets of adjustment frames (5) are rotatably connected by a rotating shaft. A bidirectional screw (6) is rotatably installed inside the mounting rod (2). A screw tube (8) is rotatably installed inside each of the two sets of first adjustment rods (3). A fixed seat (11) is fixedly installed on the adjustment frame (5). An installation seat (12) is fixedly installed on the fixed seat (11). Multiple sets of annularly distributed limiting plates (15) are provided inside the fixed seat (11).

2. The fin coating spraying device for an air-cooled finned heat exchanger according to claim 1, characterized in that: The two ends of the bidirectional screw (6) pass through two sets of first adjusting rods (3) and are threaded to the two sets of first adjusting rods (3) respectively. The two sets of screw tubes (8) pass through the corresponding second adjusting rods (4) and are threaded to the second adjusting rods (4) respectively.

3. The fin coating spraying device for an air-cooled finned heat exchanger according to claim 1, characterized in that: The bidirectional screw (6) has two sets of symmetrically distributed limiting grooves (7), and each of the two sets of screw tubes (8) has two sets of symmetrically distributed limiting blocks (9). The limiting blocks (9) are correspondingly arranged with the limiting grooves (7), and the two sets of screw tubes (8) are slidably connected to the bidirectional screw (6) through the limiting blocks (9) and the limiting grooves (7).

4. The fin coating spraying device for an air-cooled finned heat exchanger according to claim 1, characterized in that: An installation ring (13) is rotatably installed inside the fixed base (11). Multiple sets of limiting plates (15) are rotatably connected to the fixed base (11) through installation shafts (16). Multiple sets of installation shafts (16) are slidably distributed around the installation ring (13). Gears (17) are sleeved on multiple sets of installation shafts (16). A first toothed ring (14) is sleeved on the installation ring (13). Multiple sets of gears (17) are meshed with the first toothed ring (14).

5. The fin coating spraying device for an air-cooled finned heat exchanger according to claim 1, characterized in that: An adjusting disc (18) is rotatably installed inside the mounting base (12). A second toothed ring (22) is sleeved on the adjusting disc (18). A drive wheel (23) is rotatably installed inside the mounting base (12). The drive wheel (23) meshes with the second toothed ring (22). Three sets of ring-shaped locking rods (19) are provided inside the mounting base (12). Three sets of ring-shaped guide rails (24) are fixedly installed inside the mounting base (12). All three sets of locking rods (19) are slidably connected to the corresponding guide rails (24).

6. The fin coating spraying device for an air-cooled finned heat exchanger according to claim 5, characterized in that: The adjustment disc (18) has three sets of annularly distributed guide grooves (21), and the three sets of guide grooves (21) are correspondingly set with three sets of locking rods (19). Each of the three sets of locking rods (19) is fixedly installed with a guide rod (20), and the guide rod (20) is slidably connected to the adjustment disc (18) through the corresponding guide groove (21).

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