A modular wear-resistant and dust-removing three-dimensional fin tube heat exchanger

Abstract

The present invention relates to the field of heat exchangers, specifically to a modular anti-wear and dust-removing three-dimensional fin tube heat exchanger, comprising a shell, wherein the upper and lower ends of the shell are respectively fixedly connected with a smoke outlet pipe and a smoke inlet pipe, and the front and rear ends of the shell are respectively fixedly connected with an air inlet pipe and an air outlet pipe, and the inner wall of the shell is symmetrically fixedly connected with a fixing plate one from top to bottom, and the inner walls of the two fixing plates one are jointly fixedly penetrated with a plurality of heat exchange tubes, and the outer wall of the heat exchange tube is fixedly connected with a plurality of outer fins from top to bottom, and the outer wall of the heat exchange tube is fixedly connected with a plurality of outer fins by arranging the outer fins and the inner fins on the outer and inner walls of the heat exchange tube, the outer fins can increase the contact area between the air and the outer wall of the heat exchange tube, and the inner fins can increase the contact area between the flue gas and the inside of the heat exchange tube, and at the same time, the outer fins can turbulent the air, and the inner fins can turbulent the flue gas, thereby improving the utilization efficiency of the flue gas waste heat and enhancing the heat exchange capacity of the heat exchange tube, thereby increasing the wall temperature of the heat exchange tube and reducing the amount of smoke scale adhered to the inner wall of the heat exchange tube by the flue gas.

Description

Technical Field

[0001] The invention relates to the field of heat exchangers, in particular to a modular wear-resistant and dust-removing three-dimensional fin tube heat exchanger. Background Art

[0002] The heat exchanger is a heating surface that preheats the air entering the boiler to a certain temperature through the internal heat sinks. The heat in the flue gas is recovered to preheat the air entering the boiler, thereby improving the heat exchange efficiency of the boiler.

[0003] Most of the existing heat exchangers use light tubes, spiral tubes, ceramic tubes, etc. Light tubes have no heat exchange enhancement and low heat exchange efficiency. The enhancement effect of spiral tubes is limited. Ceramic tubes have a heat-resistant covering layer, which has lower heat exchange efficiency and a small temperature difference between the inner and outer tube walls. Light tubes and spiral tubes are prone to low-temperature corrosion. At the same time, the flue gas contains a large amount of sulfur trioxide and water vapor, which combine to generate sulfuric acid vapor. The air temperature is low, and the temperature of the heat exchange tube wall near the intake pipe is also low. In this case, the flue gas is prone to condensation on the heat exchange tube wall near the intake pipe. These substances scale at the heat exchange tube mouth or the inner wall of the tube near the intake pipe, causing blockage and affecting the heat exchange efficiency. To this end, we propose a modular anti-wear and dust removal three-dimensional fin tube heat exchanger. Summary of the invention

[0004] The object of the present invention is to provide a modular wear-resistant and dust-removing three-dimensional fin tube heat exchanger to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: it comprises a shell, the upper and lower ends of the shell are respectively fixedly connected with a smoke outlet pipe and a smoke inlet pipe, the front and rear ends of the shell are respectively fixedly connected with an air inlet pipe and an air outlet pipe, the inner wall of the shell is symmetrically fixedly connected with a fixing plate one from top to bottom, the inner walls of the two fixing plates one are jointly fixedly penetrated with a plurality of heat exchange tubes, the outer walls of the heat exchange tubes are fixedly connected with a plurality of outer fins from top to bottom, the inner walls of the heat exchange tubes are fixedly connected with a plurality of scraper rings from top to bottom, the inner ring surfaces of the plurality of scraper rings are fixedly connected with a plurality of inner fins in a ring array, the inner walls of the plurality of scraper rings are jointly fixedly penetrated with a connecting rod one, a fixing column is provided above the fixing plate one located above through a transmission mechanism for lifting and lowering, and a cleaning mechanism is also provided above the fixing plate one located above, the upper end of the connecting rod one movably penetrates the fixing column, and an elastic mechanism is provided between the connecting rod one and the fixing column.

[0006] Preferably, the transmission mechanism includes a second fixed plate and a fixed rail, the second fixed plate is fixedly connected to the bottom of the smoke inlet pipe, the second fixed plate is fixedly connected to a motor on a side wall of the corresponding shell, the output shaft end of the motor is fixedly connected to a rotating column, the end of the rotating column away from the motor is fixedly connected to a gear, the rotating column passes through the inner wall of the shell and is rotatably connected, the fixed rail is fixedly connected to the inner wall of the shell, the inner side of the fixed rail is slidably connected to a tooth plate, the gear and the tooth plate are meshed with each other, and the tooth plate is fixedly connected to one end of the fixed column on a side wall away from the fixed rail.

[0007] Preferably, the cleaning mechanism includes an electric push rod, which is passed through and fixedly connected to the inner wall of the fixed plate 2, the extended shaft end of the electric push rod is fixedly connected to a heat insulation rod, the heat insulation rod movably passes through one side wall of the shell, the end of the heat insulation rod away from the electric push rod is fixedly connected to a connecting rod 2, the outer wall of the connecting rod 2 is fixedly sleeved with a plurality of fixed blocks 2 in a linear array, the end of the connecting rod 2 away from the heat insulation rod movably passes through the other side wall of the shell, and the rear ends of the plurality of fixed blocks 2 are provided with impact components.

[0008] Preferably, the impact assembly includes a connecting rod three, the connecting rod three is slidably inserted in the inner wall of the fixed block two, the lower end of the connecting rod three is fixedly connected to the fixed block three, a spring two is fixedly connected between the fixed block three and the fixed block two, the spring two is slidably sleeved on the outer wall of the connecting rod three, the lower end of the fixed block three is fixedly connected to the impact block, the fixed block three is located on the movement path of the fixed column, and the two side walls of the impact block are V-shaped.

[0009] Preferably, two ventilation pipes are fixedly connected through the inner walls of the air inlet pipe and the air outlet pipe.

[0010] Preferably, the elastic mechanism includes disc one and disc two, disc one is fixedly connected to the outer wall of the fixed column, connecting rod one movably passes through disc one, disc two is fixedly connected to the top of connecting rod one, and spring one is fixedly connected between disc one and disc two, and spring one is located on the outside of connecting rod one.

[0011] Preferably, a groove is provided on one side wall of the tooth plate away from the fixed track, a fixing rod is fixedly connected between the front and rear ends of the shell, the fixing rod and the groove are slidably fitted, and a plurality of fixing blocks 1 are fixedly connected to the rear end linear array of the fixing rod, and the plurality of fixing blocks 1 are respectively located on the movement paths of the plurality of discs 2.

[0012] Preferably, the heat exchange tube is made of high-speed steel material, and the heat insulation rod is made of aluminum silicate fiber material.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. By setting the outer fins and inner fins on the outer and inner walls of the heat exchange tube, the outer fins can increase the contact area between the air and the outer wall of the heat exchange tube, and the inner fins can increase the contact area between the flue gas and the inside of the heat exchange tube. At the same time, the outer fins can disturb the air, and the inner fins can disturb the flue gas, thereby improving the utilization efficiency of flue gas waste heat and enhancing the heat exchange capacity of the heat exchange tube, thereby increasing the wall temperature of the heat exchange tube and reducing the amount of soot attached to the inner wall of the heat exchange tube by the flue gas.

[0015] 2. Through the lifting and lowering of the fixed column, the elastic mechanism and the cleaning mechanism cooperate with each other, the soot scale attached to the inner wall of the heat exchange tube can be scraped off, and the soot scale on the upper surface of the fixed plate can be broken and gathered and pushed into the inside of the heat exchange tube, so that the soot scale on the inner wall of the heat exchange tube and the soot scale on the upper surface of the fixed plate can fall into the inside of the heat exchange tube and be easily collected, which greatly reduces the blockage caused by the adhesion of soot on the inner wall of the heat exchange tube and the upper surface of the fixed plate, and prolongs the working life of the heat exchange tube.

[0016] 3. The suction pump installed inside the ventilation pipe can suck a small amount of hot air in the outlet pipe into the intake pipe, thereby increasing the initial temperature of the air entering the intake pipe later, thereby further reducing the amount of soot attached to the inner wall of the heat exchange tube by the flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall schematic diagram of the present invention;

[0018] Figure 2 It is a cross-sectional schematic diagram of the housing of the present invention;

[0019] Figure 3 It is a cross-sectional schematic diagram of the heat exchange tube of the present invention;

[0020] Figure 4 For the present invention Figure 3 A schematic diagram of the structure enlargement in the middle;

[0021] Figure 5 It is a schematic diagram of the position relationship between the fixing plate 2 and the motor of the present invention;

[0022] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at B in the middle;

[0023] Figure 7 For the present invention Figure 5 A magnified schematic diagram of the structure at C in the middle;

[0024] Figure 8 It is a schematic diagram of the position relationship between the electric push rod and the heat insulation rod of the present invention;

[0025] Fig. 9 It is a schematic diagram of the position relationship between the housing and the connecting rod of the present invention;

[0026] Fig.10 For the present invention Fig. 9 Enlarged schematic diagram of the structure at point D in the middle.

[0027] In the attached drawings, the parts represented by each reference numeral are listed as follows: 1. Shell; 2. Smoke outlet pipe; 3. Smoke inlet pipe; 4. Air inlet pipe; 5. Air outlet pipe; 6. Fixed plate 1; 7. Heat exchange tube; 8. Outer fins; 9. Scraper ring; 10. Inner fins; 11. Connecting rod 1; 12. Fixed plate 2; 13. Motor; 14. Rotating column; 15. Gear; 16. Fixed track; 17. Tooth plate; 18. Fixed column; 19. Disc 1; 20. Spring 1; 21. Disc 2; 22. Groove; 23. Fixed rod; 24. Fixed block 1; 25. Electric push rod; 26. Heat insulation rod; 27. Fixed block 2; 28. Connecting rod 2; 29. ​​Spring 2; 30. Fixed block 3; 31. Connecting rod 3; 32. Impact block; 33. Air exchange tube. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on 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.

[0029] Example 1: Please refer to Figure 1 - Fig.10 The figure shows a modular anti-wear and dust removal three-dimensional fin tube heat exchanger, comprising a shell 1, the upper and lower ends of the shell 1 are respectively fixedly connected with a smoke outlet pipe 2 and a smoke inlet pipe 3, the front and rear ends of the shell 1 are respectively fixedly connected with an air inlet pipe 4 and an air outlet pipe 5, the inner wall of the shell 1 is symmetrically fixedly connected with a fixing plate 6 from top to bottom, and a plurality of heat exchange tubes 7 are fixedly penetrated and installed on the inner walls of the two fixing plates 6, the outer wall of the heat exchange tube 7 is fixedly connected with a plurality of outer fins 8 from top to bottom, and the inner wall of the heat exchange tube 7 is fixedly connected with a plurality of scraper rings 9 from top to bottom, and the inner ring surfaces of the plurality of scraper rings 9 are fixedly connected with a plurality of inner fins 10 in an annular array, and the inner walls of the plurality of scraper rings 9 are fixedly penetrated with a connecting rod 11, and a fixing column 18 is arranged above the upper fixing plate 6 through a transmission mechanism, and a cleaning mechanism is also arranged above the upper fixing plate 6, the upper end of the connecting rod 11 is movably penetrated through the fixing column 18, and an elastic mechanism is arranged between the connecting rod 11 and the fixing column 18.

[0030] The transmission mechanism includes a fixed plate 12 and a fixed track 16. The fixed plate 12 is fixedly connected to the bottom of the smoke inlet pipe 3. The fixed plate 12 is fixedly connected to a motor 13 on a side wall of the shell 1 corresponding to the fixed plate 12. The output shaft end of the motor 13 is fixedly connected to a rotating column 14. The end of the rotating column 14 away from the motor 13 is fixedly connected to a gear 15. The rotating column 14 penetrates and is rotatably connected in the inner wall of the shell 1. The fixed track 16 is fixedly connected to the inner wall of the shell 1. A tooth plate 17 is slidably connected to the inner side of the fixed track 16. The gear 15 and the tooth plate 17 are meshed with each other. The tooth plate 17 is fixedly connected to one end of the fixed column 18 on a side wall away from the fixed track 16.

[0031] The cleaning mechanism includes an electric push rod 25, which is fixedly connected to the inner wall of the fixed plate 12, and the extended shaft end of the electric push rod 25 is fixedly connected to a heat-insulating rod 26, which movably passes through one side wall of the shell 1, and the end of the heat-insulating rod 26 away from the electric push rod 25 is fixedly connected to a connecting rod 28, and the outer wall of the connecting rod 28 is fixedly sleeved with a plurality of fixed blocks 27 in a linear array, and the end of the connecting rod 28 away from the heat-insulating rod 26 movably passes through the other side wall of the shell 1, and the rear ends of the plurality of fixed blocks 27 are all provided with impact components.

[0032] The impact assembly includes a connecting rod three 31, which is slidably inserted into the inner wall of the fixed block two 27, and the lower end of the connecting rod three 31 is fixedly connected to the fixed block three 30, and a spring two 29 is fixedly connected between the fixed block three 30 and the fixed block two 27, and the spring two 29 is slidably sleeved on the outer wall of the connecting rod three 31, and the lower end of the fixed block three 30 is fixedly connected to the impact block 32, and the fixed block three 30 is located on the movement path of the fixed column 18, and the two side walls of the impact block 32 are both V-shaped.

[0033] The elastic mechanism includes a disk 19 and a disk 21. The disk 19 is fixedly connected to the outer wall of the fixed column 18. The connecting rod 11 movably passes through the disk 19. The disk 21 is fixedly connected to the top of the connecting rod 11. A spring 20 is fixedly connected between the disk 19 and the disk 21. The spring 20 is located on the outside of the connecting rod 11.

[0034] A groove 22 is provided on one side wall of the tooth plate 17 away from the fixed track 16, and a fixing rod 23 is fixedly connected between the front and rear ends inside the shell 1. The fixing rod 23 and the groove 22 are slidably fitted together, and a plurality of fixing blocks 24 are fixedly connected to the rear end linear array of the fixing rod 23, and the plurality of fixing blocks 24 are respectively located on the movement paths of the plurality of discs 21.

[0035] The heat exchange tube 7 is made of high-speed steel material, and the heat insulation rod 26 is made of aluminum silicate fiber material.

[0036] Specifically, high-speed steel is an alloy steel containing high amounts of tungsten, molybdenum, cobalt and other elements, and has good wear resistance and thermal conductivity, thereby preventing the heat exchange tube 7 from being worn. The heat insulation rod 26 made of aluminum silicate fiber material has good heat insulation, thereby preventing the electric push rod 25 from being damaged by high temperature.

[0037] In this embodiment, the smoke inlet pipe 3 can be connected to the boiler smoke pipe, the smoke outlet pipe 2 can be connected to the smoke collection pipe, the air inlet pipe 4 can be connected to the air delivery pipe, and the air outlet pipe 5 can be connected to the air inlet of the power equipment. The boiler smoke will enter the shell 1 and the multiple heat exchange tubes 7 along the smoke inlet pipe 3, so that the heat exchange tube 7 transfers the heat of the smoke in its tube to the tube wall, and the air contacts the tube wall of the heat exchange tube 7 to be heated, so that the hot air enters the power equipment. When the air enters the air inlet pipe 4, when it just contacts the tube wall of the heat exchange tube 7 near the side of the air inlet pipe 4, the air temperature is low. At this time, the smoke contains a large amount of sulfur trioxide and water vapor. In this case, the smoke is easy to form condensation on the tube wall of the heat exchange tube 7 near the side of the air inlet pipe 4 due to the low temperature. These substances are scaled at the tube mouth or the inner wall of the heat exchange tube 7 near the side of the air inlet pipe 4, thereby causing the tube mouth or the inner wall of the heat exchange tube 7 to be blocked, and the upper surface of the fixing plate 6 will also form condensation and smoke scale. The flue gas will pass through the inner fins 10 in the inner cavity of the heat exchange tube 7, and the air will pass through the outer fins 8 on the outer wall of the heat exchange tube 7. By arranging the outer fins 8 and the inner fins 10 on the outer and inner walls of the heat exchange tube 7, the outer fins 8 can increase the contact area between the air and the outer wall of the heat exchange tube 7, and the inner fins 10 can increase the contact area between the flue gas and the inside of the heat exchange tube 7. At the same time, the outer fins 8 can disturb the air, and the inner fins 10 can disturb the flue gas, thereby improving the utilization efficiency of the flue gas waste heat and enhancing the heat exchange capacity of the heat exchange tube 7, thereby increasing the wall temperature of the heat exchange tube 7 and reducing the amount of smoke scale attached to the inner wall of the heat exchange tube 7 by the flue gas.

[0038] The staff starts the motor 13. After the motor 13 is started, it drives the rotating column 14 to rotate synchronously. The rotating column 14 drives the gear 15 to rotate synchronously. The gear 15 drives the toothed plate 17 meshing therewith to slide vertically upward inside the fixed track 16. The toothed plate 17 drives the fixed column 18 to move vertically upward, so that the fixed column 18 drives multiple discs 19 to move upward synchronously. Each disc 19 will drive the spring 1 20 connected to it to move upward synchronously. Each spring 1 20 will drive the disc 2 21 connected to it to move upward synchronously. Each disc 2 21 can drive the connecting rod 1 11 connected to it to move upward synchronously. Each connecting rod 11 will drive the multiple scraper rings 9 connected to it and the inner ribs 10 in the scraper ring 9 to move upward synchronously. Similarly, when the motor 13 is started and its output shaft begins to reverse, the fixed column 18 and the components connected to the fixed column 18 will move downward synchronously, and the multiple scraper rings 9 inside the heat exchange tube 7 close to the intake pipe 4 can move back and forth up and down, and scrape the smoke stains on the inner wall of the heat exchange tube 7 close to the intake pipe 4, and the multiple scraper rings 9 moving back and forth up and down can further disturb the smoke, thereby further improving the heat exchange efficiency.

[0039] When the fixing column 18 moves vertically upward, the fixing column 18 drives the disc 21 to move to the bottom of the fixing block 124 and contacts it. The fixing block 124 exerts a reaction force on the disc 21, so that the disc 21 drives the connecting rod 11 to slide vertically downward inside the disc 19 and the fixing column 18 and compress the spring 120. When the fixing column 18 moves vertically downward, the disc 21 no longer contacts the fixing block 124. The compressed spring 120 pushes the disc 21 vertically upward again through the elastic extension force. The disc 21 drives the connecting rod 11 to move vertically upward again. When the disc 21 moves upward, the disc 21 is subjected to the force of the fixing block 124. When the disc 21 moves downward, it is subjected to the force of the spring 120. Then the connecting rod 11 realizes the vibration effect, so that the inner rib 10 on the scraper ring 9 realizes the vibration effect, which is convenient for removing the smoke stains on the scraper ring 9 and the inner rib 10.

[0040] During the vertical upward movement of the fixed column 18, in the initial state, the spring 29 is in a stretched state, and the spring 29 pulls the fixed block 30 to move vertically upward through the elastic contraction force, and the fixed block 30 will always keep in contact with the fixed column 18, and then the fixed column 18 will continue to move upward and will be separated from the fixed block 30, and the fixed block 30 will drive the impact block 32 to move synchronously, and the fixed block 30 will drive the connecting rod 31 to slide vertically upward in the fixed block 27. During the vertical downward movement of the fixed column 18, the fixed column 18 will squeeze the fixed block 30 and push the fixed block 30 to move vertically downward, and the fixed block 30 will drive the impact block 32 to move synchronously, and the impact block 32 will contact and impact the upper surface of the fixed plate 1 6, and the soot attached to the fixed plate 1 6 will be broken.

[0041] The staff cuts off the power of the motor 13, and then starts the electric push rod 25, which pushes the heat insulating rod 26 to move in the direction close to the fixed block 27, and the heat insulating rod 26 drives the connecting rod 28 to move synchronously, and the connecting rod 28 drives the multiple fixed blocks 27 to move synchronously, and the multiple fixed blocks 27 can drive the connecting rods 3 31 inside each of them to move synchronously, and each connecting rod 3 31 drives the fixed block 3 30 to move in the direction close to the upper end of the heat exchange tube 7, and the fixed block 30 drives the impact block 32 to move synchronously, and because the impact block 32 abuts against the fixed The upper surface of the plate 6, and the two side walls of the impact block 32 are both V-shaped, so the impact block 32 will gather the soot that is shaken off on the fixed plate 6 and push it into the heat exchange tube 7. At the same time, the impact block 32 also plays a role in being able to continue to remove the remaining soot still attached to the fixed plate 6. Because the impact block 32 is a two-way V-shaped setting, when the electric push rod 25 pushes the insulation rod 26 to move back, the fixed block 27 can also play a role in removing the remaining soot still attached to the fixed plate 6 and gathering the soot that is shaken off on the fixed plate 6 and pushing it into the heat exchange tube 7.

[0042] It should be noted that, through the lifting and lowering of the fixed column 18, the elastic mechanism and the cleaning mechanism cooperate with each other, the soot scale attached to the inner wall of the heat exchange tube 7 can be scraped off, and the soot scale on the upper surface of the fixed plate 6 can be broken and gathered and pushed into the interior of the heat exchange tube 7, so that the soot scale on the inner wall of the heat exchange tube 7 and the soot scale on the upper surface of the fixed plate 6 can fall into the interior of the heat exchange tube 7 and be easily collected, which greatly reduces the blockage caused by the adhesion of soot on the inner wall of the heat exchange tube 7 and the upper surface of the fixed plate 6, and extends the working life of the heat exchange tube 7.

[0043] Example 2: Please refer to Figure 1 and Figure 2 This embodiment further explains the first embodiment. In the figure, two ventilation pipes 33 are fixedly connected to the inner walls of the air inlet pipe 4 and the air outlet pipe 5. Specifically, suction pumps are installed inside the two ventilation pipes 33.

[0044] In this embodiment, the suction pump can suck a small amount of hot air in the outlet pipe 5 into the intake pipe 4, thereby increasing the initial temperature of the air subsequently entering the intake pipe 4, thereby further reducing the amount of soot adhered to the inner wall of the heat exchange tube 7 by the flue gas.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A modular wear-resistant and dust-removing three-dimensional fin tube heat exchanger, comprising a shell (1), characterized in that: The upper and lower ends of the shell (1) are respectively fixedly connected to a smoke outlet pipe (2) and a smoke inlet pipe (3); the front and rear ends of the shell (1) are respectively fixedly connected to an air inlet pipe (4) and an air outlet pipe (5); the inner wall of the shell (1) is symmetrically fixedly connected to a fixing plate (6) from top to bottom; the inner walls of the two fixing plates (6) are jointly fixedly penetrated with a plurality of heat exchange tubes (7); the outer walls of the heat exchange tubes (7) are fixedly connected to a plurality of external fins (8) from top to bottom; the inner walls of the heat exchange tubes (7) are fixedly connected to a plurality of scraper rings from top to bottom. (9), the inner ring surfaces of the plurality of scraper rings (9) are all fixedly connected with a plurality of inner ribs (10) in an annular array, the inner walls of the plurality of scraper rings (9) are commonly fixed with a connecting rod (11) running through them, a fixing column (18) is provided above the fixing plate (6) located above and is lifted and lowered by a transmission mechanism, and a cleaning mechanism is also provided above the fixing plate (6) located above, the upper end of the connecting rod (11) is movably passed through the fixing column (18), and an elastic mechanism is provided between the connecting rod (11) and the fixing column (18); The transmission mechanism comprises a second fixing plate (12) and a fixing track (16), wherein the second fixing plate (12) is fixedly connected to the bottom of the smoke inlet pipe (3), and a motor (13) is fixedly connected to the second fixing plate (12) on a side wall corresponding to the shell (1), and a rotating column (14) is fixedly connected to the output shaft end of the motor (13), and a gear (15) is fixedly connected to the end of the rotating column (14) away from the motor (13), and the rotating column (14) passes through the inner wall of the shell (1) and is rotatably connected, and the fixed track (16) is fixedly connected to the inner wall of the shell (1), and a tooth plate (17) is slidably connected to the inner side of the fixed track (16), and the gear (15) and the tooth plate (17) are meshed with each other, and a side wall of the tooth plate (17) away from the fixed track (16) is fixedly connected to one end of the fixing column (18); The cleaning mechanism comprises an electric push rod (25), the electric push rod (25) is inserted through and fixedly connected to the inner wall of the second fixing plate (12), the extended shaft end of the electric push rod (25) is fixedly connected to a heat insulating rod (26), the heat insulating rod (26) is movably inserted through a side wall of the shell (1), the end of the heat insulating rod (26) away from the electric push rod (25) is fixedly connected to a second connecting rod (28), the outer wall of the second connecting rod (28) is linearly arrayed with a plurality of second fixing blocks (27), the end of the second connecting rod (28) away from the heat insulating rod (26) is movably inserted through the other side wall of the shell (1), and the rear ends of the plurality of second fixing blocks (27) are all provided with impact components; The impact assembly comprises a connecting rod three (31), the connecting rod three (31) is slidably inserted into the inner wall of the fixed block two (27), the lower end of the connecting rod three (31) is fixedly connected to the fixed block three (30), a spring two (29) is fixedly connected between the fixed block three (30) and the fixed block two (27), the spring two (29) is slidably sleeved on the outer wall of the connecting rod three (31), the lower end of the fixed block three (30) is fixedly connected to the impact block (32), the fixed block three (30) is located on the movement path of the fixed column (18), and the two side walls of the impact block (32) are both V-shaped; The elastic mechanism comprises a disc 1 (19) and a disc 2 (21), wherein the disc 1 (19) is fixedly connected to the outer wall of the fixed column (18), the connecting rod 1 (11) movably passes through the disc 1 (19), the disc 2 (21) is fixedly connected to the top of the connecting rod 1 (11), and a spring 1 (20) is fixedly connected between the disc 1 (19) and the disc 2 (21), and the spring 1 (20) is located on the outside of the connecting rod 1 (11); A groove (22) is formed on a side wall of the tooth plate (17) away from the fixed track (16); a fixing rod (23) is fixedly connected between the front and rear ends of the shell (1); the fixing rod (23) and the groove (22) are slidably engaged; a plurality of fixing blocks (24) are fixedly connected to the rear end of the fixing rod (23) in a linear array; the plurality of fixing blocks (24) are respectively located on the movement paths of the plurality of discs (21).

2. A modular anti-wear and dust removal three-dimensional fin tube heat exchanger according to claim 1, characterized in that: Two ventilation pipes (33) are fixedly connected through the inner walls of the air inlet pipe (4) and the air outlet pipe (5).

3. The modular anti-wear and dust removal three-dimensional fin tube heat exchanger according to claim 1 is characterized by: The heat exchange tube (7) is made of high-speed steel material, and the heat insulation rod (26) is made of aluminum silicate fiber material.

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