Plate-fin heat exchanger convenient to overhaul and maintain

Abstract

The invention belongs to the technical field of heat exchangers, and particularly relates to a plate-fin heat exchanger convenient to overhaul and maintain, which comprises a bearing bottom plate, the two ends of the outer wall of the top of the bearing bottom plate are fixedly connected with a protective frame I and a protective frame II respectively, and the outer wall of the top of the bearing bottom plate is fixedly connected with two I-shaped beams; the outer walls of the two ends of the two I-shaped beams are fixedly connected with the upper ends and the lower ends of the outer walls of the adjacent sides of a first protection frame and a second protection frame correspondingly, a plurality of heat exchange metal plates are slidably connected between the two I-shaped beams in a clamped mode, the outer wall of a transverse sliding groove is sleeved with a first limiting sleeve, and the outer wall of the first limiting sleeve is fixedly connected with a disassembling annular plate. The outer walls of the disassembling annular plates are movably attached to the outer walls of the protection pieces, the two heat exchange metal plates fixed due to scale condensation are separated through the multiple disassembling annular plates, and therefore rapid disassembling between the heat exchange metal plates is achieved, in this way, the heat exchange metal plates do not need to be rapidly disassembled manually, and the overhauling efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of heat exchangers, and in particular relates to a plate-fin heat exchanger that is easy to repair and maintain. Background Art

[0002] A plate-fin heat exchanger is a highly efficient heat exchange device typically composed of baffles, fins, seals, and guide vanes. Its core structure is the plate bundle, which consists of a sandwich of fins, guide vanes, and seals placed between two adjacent baffles and fused together through a brazing process. This structure gives the plate-fin heat exchanger high mechanical strength and compactness, making it suitable for a variety of fluid heat exchange scenarios. The combination of these components creates multiple fluid channels. As the fluid flows through these channels, the fins increase the heat transfer area, thereby improving heat transfer efficiency. The core of the plate bundle is the brazing process, which firmly connects the various components together to form a single structure.

[0003] However, the conventional device still has the following problems when used: After long-term use, a large amount of scale will accumulate between the fins of traditional plate-fin heat exchangers, requiring workers to disassemble and clean them regularly. However, since the scale condenses and fixes a large number of fins, multiple workers are required to cooperate in prying open the fins one by one for cleaning and maintenance. This process consumes a lot of working time and workers' energy. Therefore, we need a plate-fin heat exchanger that is easy to maintain and can improve maintenance efficiency. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention aims to provide a plate-fin heat exchanger that is easy to repair and maintain, which has the advantages of being easy to repair and can improve the repair efficiency.

[0005] The heat dissipation device of claim 1, wherein the bridge has two opposite ends, and one of the ends is disconnected from the mounting plate to form a round shank which is fellow a thumbscrew of the second end of the beam, the second end of the beam being fixedly mounted on the bridge.

[0006] Preferably, guide rails are provided on the outer walls surrounding the transverse sliding groove, a guide slide is fixedly connected to the inner wall of the limiting sleeve 1, and the outer wall of the guide slide is slidably connected to the inner wall of the limiting sleeve 1.

[0007] Preferably, a connecting bearing is provided on the outer wall of one end of the limiting sleeve 1, the inner sleeve of the connecting bearing is fixedly connected to the outer wall of the limiting sleeve 1, the outer sleeve of the connecting bearing is fixedly connected to the limiting sleeve 2, the limiting sleeve 2 is sleeved on the outer wall of the transverse slide groove, the outer wall of the transverse slide groove is provided with a threaded slide groove, the inner wall of the limiting sleeve 2 is provided with threaded teeth, the threaded slide groove is meshed with the threaded teeth, and a retaining frame is fixedly connected to each other between the multiple limiting sleeves 2.

[0008] Preferably, a mounting groove is provided on the outer wall of one side of the retaining frame, a mounting connecting plate is slidably connected to the outer wall of the mounting groove, a cleaning spray gun is fixedly installed on the outer wall of the mounting connecting plate, and the spray end of the cleaning spray gun is opposite to the outer wall of the heat exchange metal plate.

[0009] Preferably, a slot is provided on the outer wall of one end of the disassembly ring plate, and a roller is rotatably connected to the inner wall of the slot, and the outer wall of the roller is movably fitted with the outer wall of the protective sheet.

[0010] Preferably, both outer walls of the heat exchange metal plate are provided with plug blocks, one outer wall of the protective sheet is fixedly connected with a slot, and the slot is movably plugged into the inner wall of the plug block.

[0011] Preferably, a chain plate is provided on the outer wall of one end of the transverse slide away from the protective frame, an extension rod is provided on the outer wall of one end of the transverse slide, a locking rod is fixedly connected to the outer wall of one end of the extension rod, the outer wall of the locking rod is movably connected to the inner wall of the chain plate, and a disassembly groove is provided on the bottom of the outer wall of one side of the I-beam.

[0012] Preferably, a limit bearing is fixedly installed on the outer wall of one side of the protective frame 2, the inner sleeve of the limit bearing is fixedly connected to a connecting rod, the outer wall of one end of the connecting rod away from the limit bearing is fixedly connected to a spring hinge, and the outer wall of one end of the spring hinge is fixedly connected to the outer wall of one end of the extension rod.

[0013] Preferably, a pressure plate is slidably connected between the two I-beams, and the pressure plate is provided with a plurality of threaded through holes. The inner walls of the threaded through holes are threadedly connected to the outer walls of the threaded grooves. A sprocket connected to the threaded through holes is provided on the outer wall of one side of the pressure plate, and the sprocket is the same width as the engaging rod.

[0014] Preferably, one side outer wall of the supporting base is fixedly connected to a base plate, the top outer wall of the base plate is fixedly connected to a bidirectional reciprocating motor, one side outer wall of the protective frame is rotatably connected to multiple chain disks, multiple chain disks are rotatably connected to the same sprocket, the axis of the bidirectional reciprocating motor is fixedly connected to the outer wall of one of the chain disks, one end outer wall of the transverse slide groove is fixedly connected to a rotating connecting plate through the connecting hole of the protective frame, the outer wall of the chain disk is fixedly connected to the same rotating connecting plate, one side outer wall of the rotating connecting plate is fixedly connected to a connecting turntable, the outer wall of the connecting turntable is rotatably connected to a limiting ring, and the outer walls of multiple limiting rings are fixedly connected to connecting rods with each other.

[0015] Compared with the prior art, the present invention has the following beneficial effects: When the present invention needs to be disassembled for cleaning and maintenance, the multiple transverse slides are rotated at the same time, and the disassembly ring plate will rotate synchronously through the limitation of the thread teeth and the guide slide bar. At the same time, due to the mutual limitation of the retaining frames, the multiple limiting sleeves can only move back and forth laterally on the outer wall of the transverse slide through the thread teeth, and the transverse movement of the limiting sleeve will drive the disassembly ring plate to rotate laterally while rotating with the transverse slide as the axis, and the disassembly ring plate is engaged with the wings of multiple heat exchange metal plates through the displacement of the disassembly ring plate. It should be emphasized that the pitch of the threaded slide in the present invention is the same as the spacing between the multiple heat exchange metal plates. When the disassembly ring plate rotates one circle, it will move from the first group of heat exchange metal plates The space between the wings of the plate rotates to the space between the wings of the next set of heat exchange metal plates, and the rotation pitch of the disassembly ring plate itself is much higher than the rotation pitch of the threaded slot. A rotation pitch difference is formed by this structure, and the disassembly ring plate is rotated by utilizing the pitch difference to clamp the disassembly ring plate into the space between the wings of the two heat exchange metal plates. The two heat exchange metal plates fixed due to scale condensation are separated by multiple disassembly ring plates, thereby realizing rapid disassembly between the heat exchange metal plates and avoiding multiple workers using screwdrivers to pry the heat exchange metal plates from both sides at the same time, which is easy to cause scratches and consumes a lot of working time and workers' energy. The present invention can quickly disassemble the heat exchange metal plates without manual work in this way, thereby improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention in the upper right direction.

[0017] Figure 2 It is a front view structural schematic diagram of the present invention.

[0018] Figure 3 It is a schematic diagram of the top structure of the present invention.

[0019] Figure 4 It is a schematic diagram of the overall structure of the present invention in the upper left direction.

[0020] Figure 5 for Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0021] Figure 6 for Figure 1 A magnified schematic diagram of the structure at point B.

[0022] Figure 7 for Figure 1 Schematic diagram of the enlarged structure at point C in the middle.

[0023] Figure 8 for Figure 2 Enlarged schematic diagram of the structure at D in the middle.

[0024] Figure 9 for Figure 3 Enlarged schematic diagram of the structure at E in the middle.

[0025] Figure 10 for Figure 4 Enlarged schematic diagram of the structure at F in the middle.

[0026] Figure 11 This is a schematic diagram of the overall structure of the disassembled ring plate of the present invention.

[0027] Figure 12 This is a schematic diagram of the half-section structure of the disassembled ring plate of the present invention.

[0028] Figure: 1, supporting base plate; 2, I-beam; 3, heat exchange metal plate; 4, limiting sleeve 1; 5, disassembling ring plate; 6, insert block; 7, slot; 8, protective sheet; 9, connecting bearing; 10, limiting sleeve 2; 11, horizontal slide; 12, threaded slide; 13, guide rail; 14, threaded teeth; 15, guide slide; 16, slot; 17, roller; 18, extension rod; 19, spring hinge; 20, connecting rod ; 21. Limit bearing; 22. Protective frame 1; 23. Protective frame 2; 24. Pressure plate; 25. Threaded through hole; 26. Retaining frame; 27. Mounting slot; 28. Mounting connecting plate; 29. Cleaning spray gun; 30. Engaging rod; 31. Disassembly slot; 32. Rotating connecting plate; 33. Connecting turntable; 34. Limiting ring; 35. Connecting rod; 36. Base plate; 37. Bidirectional reciprocating motor; 38. Chain plate; 39. Sprocket. DETAILED DESCRIPTION

[0029] In order to clearly and completely describe the objectives and technical solutions of the present invention and make its advantages more clearly understood, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] For example 1, please refer to Figures 1 to 12 The present invention provides a technical solution: a plate-fin heat exchanger that is easy to inspect and maintain, comprising a supporting base plate 1, with a protective frame 1 22 and a protective frame 2 23 fixedly connected at both ends of the top outer wall of the supporting base plate 1, and two I-beams 2 fixedly connected to the top outer wall of the supporting base plate 1, and the outer walls at both ends of the two I-beams 2 are fixedly connected to the upper and lower ends of the adjacent side outer walls of the protective frame 1 22 and the protective frame 2 23 respectively. A plurality of heat exchange metal plates 3 are slidably clamped between the two I-beams 2, and protective sheets 8 are provided on both side outer walls of the heat exchange metal plates 3. A plurality of transverse slots 11 are distributed in an array at the positions of the outer walls of both sides of the heat exchange metal plates 3 between the protective frame 1 22 and the protective frame 2 23, and the outer walls of the plurality of transverse slots 11 are fixedly connected to the outer wall of one side of the protective frame 1 22, and the outer wall of the transverse slot 11 is provided with a limiting sleeve 1 4. The outer wall of the limiting sleeve 4 is fixedly connected with a disassembly ring plate 5, and the outer wall of the disassembly ring plate 5 and the outer wall of the protective sheet 8 are movably fitted. A guide rail 13 is provided on the outer wall around the horizontal slide groove 11. The inner wall of the limiting sleeve 4 is fixedly connected with a guide slide bar 15. The outer wall of the guide slide bar 15 is slidably connected to the inner wall of the limiting sleeve 4. A connecting bearing 9 is provided on the outer wall of one end of the limiting sleeve 4. The inner sleeve of the connecting bearing 9 is fixedly connected to the outer wall of the limiting sleeve 4. The outer sleeve of the connecting bearing 9 is fixedly connected to the limiting sleeve 2 10. The limiting sleeve 2 10 is sleeved on the outer wall of the horizontal slide groove 11. The outer wall of the horizontal slide groove 11 is provided with a threaded slide groove 12. The inner wall of the limiting sleeve 2 10 is provided with thread teeth 14. The threaded slide groove 12 is meshed with the thread teeth 14. A retaining frame 26 is fixedly connected to each other between the multiple limiting sleeves 2 10.

[0031] When the present invention needs to be disassembled for cleaning and overhaul, the multiple transverse grooves 11 are rotated at the same time, and the disassembling ring plate 5 is rotated synchronously by the limitation of the thread teeth 14 and the guide slide bar 15. At the same time, the multiple limiting sleeves 2 10 are limited by the mutual limitation of the retaining frame 26, so that the limiting sleeves 2 10 can only move back and forth laterally on the outer wall of the transverse groove 11 through the thread teeth 14, and the transverse movement of the limiting sleeve 2 10 will drive the disassembling ring plate 5 to displace laterally while rotating around the transverse groove 11 as the axis, and the displacement of the disassembling ring plate 5 is engaged with the wings of the multiple heat exchange metal plates 3. It should be emphasized that the pitch of the threaded groove 12 in the present invention is the same as the spacing between the multiple heat exchange metal plates 3, and the disassembling ring plate 5 will rotate one circle. From the wings of the first group of heat exchange metal plates 3 to the wings of the next group of heat exchange metal plates 3, the rotation pitch of the disassembly ring plate 5 itself is much higher than the rotation pitch of the threaded slot 12. A rotation pitch difference is formed by this structure, and the disassembly ring plate 5 is rotated by utilizing the pitch difference to position it between the wings of the two heat exchange metal plates 3. The two heat exchange metal plates 3 fixed due to scale condensation are separated by multiple disassembly ring plates 5, thereby realizing rapid disassembly between the heat exchange metal plates 3, avoiding multiple workers using screwdrivers to pry the heat exchange metal plates 3 from both sides at the same time, which is easy to cause scratches and consumes a lot of working time and workers' energy. The present invention can quickly disassemble the heat exchange metal plates 3 without manual labor in this way, thereby improving maintenance efficiency.

[0032] Example 2, based on Example 1, a mounting groove 27 is opened on the outer wall of one side of the retaining frame 26, and the outer wall of the mounting groove 27 is slidably connected with a mounting connecting plate 28, and the outer wall of the mounting connecting plate 28 is fixedly installed with a cleaning spray gun 29, and the spray end of the cleaning spray gun 29 is opposite to the outer wall of the heat exchange metal plate 3.

[0033] In the present invention, the cleaning spray gun 29 will move laterally synchronously with the limiting sleeve 210 to quickly flush the heat exchange metal plate 3 disassembled in front, and flush off the scale attached to the heat exchange metal plate 3, thereby facilitating maintenance. The input end of the cleaning spray gun 29 is connected to the external water valve through a water pipe to provide water. The water pipe and the water valve are both conventional devices on the market and will not be described in detail here. In the present invention, the staff can also remove the cleaning spray gun 29 by installing the connecting plate 28, and manually hold it to spray the heat exchange metal plate 3 freely, so that the scale on the heat exchange metal plate 3 can be flushed off more accurately and flexibly.

[0034] Example 3, based on Example 1, a slot 16 is provided on the outer wall of one end of the disassembled ring plate 5, and a roller 17 is rotatably connected to the inner wall of the slot 16. The outer wall of the roller 17 is movably fitted with the outer wall of the protective sheet 8. Insert blocks 6 are provided on the outer walls of both sides of the heat exchange metal plate 3, and a slot 7 is fixedly connected to the outer wall of one side of the protective sheet 8. The slot 7 is movably inserted into the inner wall position of the insert block 6.

[0035] In the present invention, by movably installing the protective sheet 8 on the outer wall of the heat exchange metal plate 3, the protective sheet 8 can be flexibly disassembled and replaced, which is convenient for replacement, avoiding direct contact of the disassembled ring plate 5 with the heat exchange metal plate 3, preventing the heat exchange metal plate 3 from being squeezed and damaged, thereby improving the service life of the present invention. Multiple protective sheets 8 can form a barrier, which can effectively prevent the side of the heat exchange metal plate 3 from being directly hit by external objects and causing damage during daily use. If the protective sheet 8 is damaged, it can be quickly replaced by pulling it out through the roller 17, reducing maintenance costs and improving maintenance efficiency. The disassembled ring plate 5 can effectively reduce the friction with the protective sheet 8 by rotating it with the roller 17. It should be emphasized that the roller 17 in the present invention is a conical cylinder that is wide at a distance and narrow at a near side, so that the outer wall on one side can effectively fit in the outer wall position of the protective sheet 8 to avoid idling.

[0036] In the fourth embodiment, a chain plate 38 is provided on the outer wall of one end of the horizontal slide 11 away from the protective frame 1 22, and an extension rod 18 is provided on the outer wall of one end of the horizontal slide 11. The outer wall of one end of the extension rod 18 is fixedly connected with a clamping rod 30. The outer wall of the clamping rod 30 is movably connected with the inner wall of the chain plate 38. A disassembly groove 31 is provided on the bottom of the outer wall of one side of the I-beam 2. A limit bearing 21 is fixedly installed on the outer wall of one side of the protective frame 23. The inner sleeve of the limit bearing 21 is fixedly connected with the connecting rod 20. The outer wall of one end of the connecting rod 20 away from the limit bearing 21 is fixedly connected with a spring hinge 19, and the outer wall of one end of the spring hinge 19 is fixedly connected to the outer wall of one end of the extension rod 18. A pressure plate 24 is slidably clamped between the two I-beams 2. The pressure plate 24 is provided with a plurality of threaded through holes 25. The inner walls of the threaded through holes 25 are threadedly connected to the outer wall of the threaded groove 12. A sprocket 39 connected to the threaded through holes 25 is provided on the outer wall of one side of the pressure plate 24. The sprocket 39 is the same width as the engaging rod 30.

[0037] In the present invention, by passing the locking rod 30 out from the sprocket 39 position, the extension rod 18 can be rotated with the spring hinge 19 as the axis, thereby disengaging from the horizontal slide groove 11. In this way, the ring plate 5 and its components can be freely disassembled, installed and disassembled. At the same time, the pressure plate 24 is pushed to the horizontal slide groove 11, and the pressure plate 24 is squeezed toward the heat exchange metal plate 3 by engaging and rotating with multiple threaded through holes 25, thereby tightly pressing the heat exchange metal plate 3, achieving the daily working mode of the present invention.

[0038] Example five, on the basis of Example one, one side outer wall of the supporting base plate 1 is fixedly connected to a base plate 36, the top outer wall of the base plate 36 is fixedly connected to a bidirectional reciprocating motor 37, one side outer wall of the protective frame 22 is rotatably connected to multiple chain disks 38, multiple chain disks 38 are rotatably connected to the same sprocket 39, the axis of the bidirectional reciprocating motor 37 is fixedly connected to the outer wall of one of the chain disks 38, the outer wall of one end of the horizontal slide 11 is fixedly connected to a rotating connecting plate 32 through the connecting hole of the protective frame 22, the outer wall of the chain disk 38 is fixedly connected to the same rotating connecting plate 32, one side outer wall of the rotating connecting plate 32 is fixedly connected to a connecting turntable 33, the outer wall of the connecting turntable 33 is rotatably connected to a limiting ring 34, and the outer walls of the multiple limiting rings 34 are fixedly connected to connecting rods 35.

[0039] In the present invention, by starting the bidirectional reciprocating motor 37, the chain plate 38 and the sprocket 39 are driven to rotate, and further, the multiple transverse slides 11 are rotated synchronously through the connecting rod 35 to complete the driving.

[0040] The working principle and use process of the present invention: When the present invention needs to be disassembled for cleaning and maintenance, the multiple transverse grooves 11 are rotated at the same time, and the disassembly ring plate 5 is rotated synchronously through the limitation of the thread teeth 14 and the guide slide bar 15. At the same time, due to the mutual limitation of the retaining frame 26, the multiple limiting sleeves 2 10 can only move back and forth laterally on the outer wall of the transverse groove 11 through the thread teeth 14, and the transverse movement of the limiting sleeve 2 10 will drive the disassembly ring plate 5 to rotate laterally while rotating with the transverse groove 11 as the axis, and the disassembly ring plate 5 is engaged with the wings of the multiple heat exchange metal plates 3 through the displacement. It should be emphasized that the pitch of the threaded groove 12 in the present invention is the same as the spacing between the multiple heat exchange metal plates 3, and the disassembly ring plate 5 will rotate one circle. The wings of the first group of heat exchange metal plates 3 are rotated to the wings of the next group of heat exchange metal plates 3, and the rotation pitch of the disassembly ring plate 5 itself is much higher than the rotation pitch of the threaded slot 12. A rotation pitch difference is formed by this structure, and the disassembly ring plate 5 is rotated by utilizing the pitch difference to clamp the disassembly ring plate 5 into the wings of the two heat exchange metal plates 3. The two heat exchange metal plates 3 fixed due to scale condensation are separated by multiple disassembly ring plates 5, thereby realizing rapid disassembly between the heat exchange metal plates 3, avoiding multiple workers using screwdrivers to pry the heat exchange metal plates 3 from both sides at the same time, which is easy to cause scratches and consumes a lot of working time and workers' energy. The present invention can quickly disassemble the heat exchange metal plates 3 without manual labor in this way, thereby improving maintenance efficiency. In the present invention, the cleaning spray gun 29 will be limited as the cleaning gun 29 is removed. The second sleeve 10 moves synchronously laterally to quickly flush the heat exchange metal plate 3 disassembled in the front, and flush off the scale attached to the heat exchange metal plate 3, thereby facilitating maintenance. The input end of the cleaning spray gun 29 is connected to the water pipe to the external water valve to provide water. The water pipe and the water valve are conventional devices on the market and are not described in detail here. In the present invention, the staff can also remove the cleaning spray gun 29 by installing the connecting plate 28, and manually hold the heat exchange metal plate 3 to freely spray, so as to more accurately and flexibly flush off the scale on the heat exchange metal plate 3. In the present invention, by movably installing the protective sheet 8 on the outer wall of the heat exchange metal plate 3, the protective sheet 8 can be flexibly disassembled and replaced, avoiding direct contact of the disassembled ring plate 5 with the heat exchange metal plate 3, and preventing the heat exchange metal plate 3 is squeezed and damaged, thereby improving the service life of the present invention. Multiple protective sheets 8 can form a barrier, which can effectively prevent the side of the heat exchange metal plate 3 from being directly hit by external objects and causing damage during daily use. If the protective sheet 8 is damaged, it can be quickly replaced by pulling it out through the roller 17, reducing maintenance costs and improving maintenance efficiency. The disassembled ring plate 5 can effectively reduce the friction with the protective sheet 8 by rotating it with the roller 17. It should be emphasized that the roller 17 in the present invention is a conical cylinder that is wide at the far end and narrow at the near end, so that the outer wall of one side can effectively fit the outer wall position of the protective sheet 8 to avoid idling. In the present invention, by passing the locking rod 30 through the sprocket 39 position, the extension rod 18 can be rotated with the spring hinge 19 as the axis, thereby disengaging from the horizontal slide groove 11.This method allows for the free installation and disassembly of the ring plate 5 and its components. Simultaneously, the pressure plate 24 is pushed to the transverse chute 11. By engaging and rotating the plurality of threaded through-holes 25, the pressure plate 24 is pressed toward the heat exchange metal plate 3, thereby firmly pressing the heat exchange metal plate 3 and achieving the present invention's daily operating mode. In the present invention, by starting the bidirectional reciprocating motor 37, the chain plate 38 and sprocket 39 rotate. Furthermore, the linkage rod 35 causes the plurality of transverse chute 11 to rotate synchronously, completing the drive.

[0041] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A plate-fin heat exchanger that is easy to repair and maintain, comprising a supporting base plate (1), characterized in that: The two ends of the top outer wall of the supporting base plate (1) are fixedly connected to a protective frame 1 (22) and a protective frame 2 (23), and the top outer wall of the supporting base plate (1) is fixedly connected to two I-beams (2). The outer walls at both ends of the two I-beams (2) are fixedly connected to the upper and lower ends of the adjacent side outer walls of the protective frame 1 (22) and the protective frame 2 (23), respectively. A plurality of heat exchange metal plates (3) are slidably connected between the two I-beams (2), and the outer walls on both sides of the heat exchange metal plates (3) are provided with protective The heat exchange metal plate (8) is provided with a plurality of transverse sliding grooves (11) arranged in an array on the outer walls of both sides of the heat exchange metal plate (3) between the protective frame 1 (22) and the protective frame 2 (23). The outer walls of one end of the plurality of transverse sliding grooves (11) are fixedly connected to the outer wall of one side of the protective frame 1 (22). The outer wall of the transverse sliding groove (11) is provided with a limiting sleeve 1 (4). The outer wall of the limiting sleeve 1 (4) is fixedly connected to a disassembly ring plate (5). The outer wall of the disassembly ring plate (5) is movably fitted to the outer wall of the protective plate (8).

2. The plate-fin heat exchanger that is easy to repair and maintain according to claim 1, characterized in that: The outer walls of the transverse slide groove (11) are provided with guide rails (13), the inner wall of the limiting sleeve (4) is fixedly connected with a guide slide bar (15), and the outer wall of the guide slide bar (15) is slidably connected to the inner wall of the limiting sleeve (4).

3. The plate-fin heat exchanger that is easy to repair and maintain according to claim 2, characterized in that: A connecting bearing (9) is provided on the outer wall of one end of the limiting sleeve (4), the inner sleeve of the connecting bearing (9) is fixedly connected to the outer wall of the limiting sleeve (4), the outer sleeve of the connecting bearing (9) is fixedly connected to the limiting sleeve (10), the limiting sleeve (10) is sleeved on the outer wall of the transverse slide groove (11), the outer wall of the transverse slide groove (11) is provided with a threaded slide groove (12), the inner wall of the limiting sleeve (10) is provided with thread teeth (14), the threaded slide groove (12) is meshed with the thread teeth (14), and a plurality of the limiting sleeves (10) are fixedly connected to each other with a retaining frame (26).

4. The plate-fin heat exchanger that is easy to repair and maintain according to claim 3, characterized in that: A mounting groove (27) is provided on the outer wall of one side of the retaining frame (26), and a mounting connecting plate (28) is slidably connected to the outer wall of the mounting groove (27). A cleaning spray gun (29) is fixedly installed on the outer wall of the mounting connecting plate (28), and the spray end of the cleaning spray gun (29) is opposite to the outer wall of the heat exchange metal plate (3).

5. The plate-fin heat exchanger that is easy to repair and maintain according to claim 1, characterized in that: A slot (16) is provided on the outer wall of one end of the disassembly ring plate (5), and a roller (17) is rotatably connected to the inner wall of the slot (16), and the outer wall of the roller (17) is movably fitted with the outer wall of the protective sheet (8).

6. The plate-fin heat exchanger that is easy to repair and maintain according to claim 1, characterized in that: Insert blocks (6) are provided on both outer walls of the heat exchange metal plate (3), and a slot (7) is fixedly connected to the outer wall of one side of the protective sheet (8), and the slot (7) is movably inserted into the inner wall of the insert block (6).

7. The plate-fin heat exchanger that is easy to repair and maintain according to claim 1, characterized in that: A chain plate (38) is provided on the outer wall of one end of the transverse chute (11) away from the protective frame (22), an extension rod (18) is provided on the outer wall of one end of the transverse chute (11), a locking rod (30) is fixedly connected to the outer wall of one end of the extension rod (18), the outer wall of the locking rod (30) is movably connected to the inner wall of the chain plate (38), and a disassembly groove (31) is provided on the bottom of the outer wall of one side of the I-beam (2).

8. The plate-fin heat exchanger that is easy to repair and maintain according to claim 7, characterized in that: A limit bearing (21) is fixedly mounted on the outer wall of one side of the protective frame 2 (23); an inner sleeve of the limit bearing (21) is fixedly connected to a connecting rod (20); an outer wall of one end of the connecting rod (20) away from the limit bearing (21) is fixedly connected to a spring hinge (19); and an outer wall of one end of the spring hinge (19) is fixedly connected to an outer wall of one end of the extension rod (18).

9. The plate-fin heat exchanger that is easy to repair and maintain according to claim 1, characterized in that: A pressure plate (24) is slidably connected between the two I-beams (2), and the pressure plate (24) is provided with a plurality of threaded through holes (25). The inner walls of the threaded through holes (25) are threadedly connected to the outer walls of the threaded slots (12). A sprocket (39) connected to the threaded through holes (25) is provided on one outer wall of the pressure plate (24), and the sprocket (39) is the same width as the engaging rod (30).

10. The plate-fin heat exchanger that is easy to repair and maintain according to claim 1, characterized in that: The outer wall of one side of the supporting base plate (1) is fixedly connected to a base plate (36), the outer wall of the top of the base plate (36) is fixedly connected to a two-way reciprocating motor (37), the outer wall of one side of the protective frame (22) is rotatably connected to multiple chain disks (38), the multiple chain disks (38) are rotatably connected to the same sprocket (39), the axis of the two-way reciprocating motor (37) is fixedly connected to the outer wall of one of the chain disks (38), the outer wall of one end of the transverse slide (11) is fixedly connected to a rotating connecting plate (32) through the connecting hole of the protective frame (22), the outer wall of the chain disk (38) is fixedly connected to the same rotating connecting plate (32), the outer wall of one side of the rotating connecting plate (32) is fixedly connected to a connecting turntable (33), the outer wall of the connecting turntable (33) is rotatably connected to a limiting ring (34), and the outer walls of the multiple limiting rings (34) are fixedly connected to a connecting rod (35) with each other.

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