Anti-blocking energy-saving tubular air pre-heater

Abstract

The utility model discloses an anti-blocking energy-saving tubular air preheater which comprises a shell and is characterized in that an air inlet is formed in the top of the shell, an air outlet is formed in the bottom of the shell, a protective cylinder is arranged on one side of the top of the shell, a first protective shell is arranged on one side of the shell, and a second rotating rod is arranged in the first protective shell; a frame is fixed to one end of the outer shell, a filter screen is arranged in the frame, a second protective shell is fixed to one end of the first protective shell, and the second protective shell is arranged on one side of the outer shell. The outer surface of the heat pipe is scraped when the groove reciprocates, and dust scraped from the outer surface of the heat pipe falls off from the air outlet.

Description

Technical Field

[0001] The utility model relates to the technical field of air preheaters, in particular to an anti-blocking energy-saving tubular air preheater. Background Art

[0002] The air preheater introduces waste heat from the air into the furnace, increases the initial temperature inside the furnace, maintains a high temperature environment inside the furnace, and reduces combustion heat loss. In order to respond to the call for environmental protection, air preheaters that use waste heat for heating are becoming increasingly popular.

[0003] The existing patent number CN112229241B discloses a vibrating slow-flow high-efficiency heat pipe air preheater. When in use, the air flow flows in the spiral heat pipe, impacting multiple elastic metal sheets close together to make them bend. The multiple elastic metal sheets after bending form gaps, which reduces resistance, and the multiple elastic metal sheets rebound. The continuously bending and rebounding elastic metal sheets cause the elastic rod to continuously bend and rebound. The bending of the elastic rod causes the two inclined ends to bend closer, that is, the inclined end of the vacuum vibration sheet vibrates radially, which cooperates with the elastic metal sheet to slow down the air flow rate and increase the air retention heat exchange time, that is, further increase the heat exchange efficiency, and has the effect of removing smoke and dust by vibration.

[0004] When air enters the preheater, it may be accompanied by dust. When used for a long time, dust may accumulate at the filter mouth. Too much dust accumulation may block the filter, resulting in insufficient filter flow and poor preheating effect. Utility Model Content

[0005] The utility model aims to provide an anti-blocking and energy-saving tubular air preheater to solve the problem of poor preheating effect caused by excessive dust accumulation in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-blocking and energy-saving tubular air preheater, comprising a shell, characterized in that an air inlet is arranged on the top of the shell, smoke enters from the air inlet, an air outlet is arranged on the bottom of the shell, smoke flows out from the air outlet, a protective tube is arranged on one side of the top of the shell, a first protective shell is arranged on one side of the shell, a second rotating rod is arranged inside the first protective shell, and the first protective shell protects the second rotating rod.

[0007] Preferably, a frame is fixed to one end of the outer shell, the frame drives the brush, a filter is arranged inside the frame, the filter filters the air, and a second protective shell is fixed to one end of the first protective shell, and the second protective shell is arranged on one side of the outer shell.

[0008] Preferably, an electric motor is installed inside the protective tube, and the motor drives the entire mechanism to operate. A second gear is installed at the bottom of the motor, and the outer surface of the second gear is meshingly connected with two groups of first gears. A support rod is fixed to the bottom of the two groups of first gears, and a fan gear is fixed to the bottom of the support rod. The fan gear drives the tooth plate to reciprocate, and the outer surface of the fan gear is meshingly connected with the tooth plate, and a scraper is fixed at one end of the tooth plate, and multiple groups of grooves are fixed at one end of the scraper, and the grooves clean the outer surface of the heat pipe.

[0009] Preferably, the interiors of the multiple groups of grooves are slidably connected with heat pipes, the heat pipes are used for air to enter, and a baffle is fixed at one end of the heat pipe.

[0010] Preferably, a first rotating rod is provided inside the second protective shell, the first rotating rod drives the first limiter to rotate, the first limiter is fixed to the outer surface of the first rotating rod, a disc is fixed to the bottom of the first rotating rod, half of the inner wall of the disc is fixed with a thread, and the thread drives the fourth gear to rotate.

[0011] Preferably, a third gear is fixed inside the disc, and a half gear is fixed on the outer surface of the third gear, a fourth gear is provided on one side inside the disc, and the fourth gear is meshingly connected with the thread and the third gear, a screw is fixed at the bottom of the fourth gear, the screw drives the bracket to rise and fall, the outer surface of the screw is meshingly connected with the bracket, a brush is fixed at one end of the bracket, and the brush cleans the filter.

[0012] Preferably, a second chain is provided inside the first limiter, the second chain rotates with the first limiter, and one end of the second chain is rotatably connected to a second rotating rod, a second limiter is fixed to an outer surface of the second rotating rod, a first chain is provided inside the second limiter, one end of the first chain is rotatably connected to a third limiter, and the third limiter drives the second limiter to rotate through the first chain.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. When the sector gear rotates, it drives the tooth plate to move back and forth. When the tooth plate moves back and forth, it drives the groove to move back and forth through the scraper. When the groove moves back and forth, it scrapes the outer surface of the heat pipe, and the dust scraped from the outer surface of the heat pipe falls from the air outlet.

[0015] 2. When the disc rotates, it drives the thread and the third gear to rotate. When the thread and the third gear rotate, it drives the fourth gear to rotate forward and reversely. When the fourth gear rotates forward and reversely, it drives the screw to rotate. When the screw rotates, it drives the bracket to move up and down. When the bracket moves, it drives the brush to move up and down. When the brush moves up and down, it cleans the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall appearance of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection of the sector gear of the utility model;

[0018] Figure 3 This is a schematic diagram of the interior of the utility model housing;

[0019] Figure 4 This is a schematic diagram of the interior of the second protective shell of the present invention;

[0020] Figure 5 This is a schematic diagram of the chain connection of this utility model.

[0021] In the figure: 1. shell; 2. air inlet; 3. protective tube; 4. first protective shell; 5. air outlet; 6. second protective shell; 7. groove; 8. bracket; 9. filter; 10. motor; 11. first gear; 12. second gear; 13. support rod; 14. fan gear; 15. toothed plate; 16. scraper; 17. heat pipe; 18. baffle; 19. screw; 20. third gear; 21. disc; 22. first chain; 23. fourth gear; 24. first limiter; 25. first rotating rod; 26. second rotating rod; 27. brush; 28. frame; 29. ​​thread; 30. second limiter; 31. third limiter; 32. second chain. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Anti-blocking and energy-saving tubular air preheater, such as Figure 1 , 2As shown, it includes a shell 1, characterized in that: an air inlet 2 is provided at the top of the shell 1, an air outlet 5 is provided at the bottom of the shell 1, a protective tube 3 is provided on one side of the top of the shell 1, a first protective shell 4 is provided on one side of the shell 1, a second rotating rod 26 is provided inside the first protective shell 4, a frame 28 is fixed at one end of the shell 1, a filter screen 9 is provided inside the frame 28, a second protective shell 6 is fixed at one end of the first protective shell 4, and the second protective shell 6 is provided on one side of the shell 1;

[0024] The smoke enters the air inlet 2 and is discharged from the smoke outlet 5, and the filter 9 filters large dust.

[0025] like Figure 2 As shown, a motor 10 is installed inside the casing 3, a second gear 12 is installed at the bottom of the motor 10, and two groups of first gears 11 are meshed and connected on the outer surface of the second gear 12. A support rod 13 is fixed to the bottom of the two groups of first gears 11, and a fan gear 14 is fixed to the bottom of the support rod 13. A tooth plate 15 is meshed and connected on the outer surface of the fan gear 14, and a scraper 16 is fixed to one end of the tooth plate 15. A plurality of groups of grooves 7 are fixed to one end of the scraper 16. A third gear 20 is fixed inside the disc 21, and a half gear is fixed on the outer surface of the third gear 20. A fourth gear 23 is arranged on one side of the inside of the disc 21, and the fourth gear 23 is meshed and connected with the thread 29 and the third gear 20. A screw 19 is fixed to the bottom of the fourth gear 23, and a bracket 8 is meshed and connected on the outer surface of the screw 19, and a brush 27 is fixed to one end of the bracket 8.

[0026] When the bracket 8 moves, the brush 27 is driven to move up and down, and the brush 27 cleans the filter screen 9 when moving up and down.

[0027] It can be understood that when the first rotating rod 25 rotates, it drives the disc 21 to rotate. When the disc 21 rotates, it drives the thread 29 and the third gear 20 to rotate. When the thread 29 and the third gear 20 rotate, they drive the fourth gear 23 to rotate forward and reverse. When the fourth gear 23 rotates forward and reverse, it drives the screw 19 to rotate. When the screw 19 rotates, it drives the bracket 8 to move up and down.

[0028] like Figure 3 , 4 As shown, a heat pipe 17 is slidably connected inside the plurality of grooves 7, a baffle 18 is fixed at one end of the heat pipe 17, a first rotating rod 25 is arranged inside the second protective shell 6, a first stopper 24 is fixed on the outer surface of the first rotating rod 25, a disc 21 is fixed at the bottom of the first rotating rod 25, and a thread 29 is fixed on half of the inner wall of the disc 21;

[0029] When the gear 14 rotates, it drives the tooth plate 15 to reciprocate. When the tooth plate 15 reciprocates, it drives the groove 7 to reciprocate through the scraper. When the groove 7 reciprocates, it scrapes the outer surface of the heat pipe 17.

[0030] like Figure 5 As shown, a second chain 32 is disposed inside the first limiter 24, and one end of the second chain 32 is rotatably connected to the second rotating rod 26, a second limiter 30 is fixed to the outer surface of the second rotating rod 26, a first chain 22 is disposed inside the second limiter 30, and one end of the first chain 22 is rotatably connected to the third limiter 31;

[0031] When the motor 10 rotates, the third limiter 31 is driven to rotate, and the third limiter 31 drives the second limiter 30 to rotate through the first chain 22 .

[0032] It can be explained that when the tooth plate 15 reciprocates, the groove 7 is driven to reciprocate through the scraper, and the groove 7 scrapes the outer surface of the heat pipe 17 when it reciprocates, and the dust scraped from the outer surface of the heat pipe 17 falls from the air outlet.

[0033] Working principle: by starting the motor 10 to rotate, the motor 10 rotates to drive the second gear 12 to rotate, the second gear 12 rotates to drive the two sets of first gears 11 to rotate, the two sets of first gears 11 rotate to drive the support rod 13 to rotate, the support rod 13 rotates to drive the bottom fan gear 14 to rotate, the fan gear 14 rotates to drive the tooth plate 15 to reciprocate, the tooth plate 15 reciprocates to drive the groove 7 to reciprocate through the scraper, the groove 7 reciprocates to scrape the outer surface of the heat pipe 17, and the dust scraped from the outer surface of the heat pipe 17 falls from the air outlet;

[0034] When the motor 10 rotates, it drives the third limiter 31 to rotate. The third limiter 31 drives the second limiter 30 to rotate through the first chain 22. When the second limiter 30 rotates, it drives the first limiter 24 to rotate through the second chain 32. When the first limiter 24 rotates, it drives the first rotating rod 25 to rotate. When the first rotating rod 25 rotates, it drives the disc 21 to rotate. When the disc 21 rotates, it drives the thread 29 and the third gear 20 to rotate. When the thread 29 and the third gear 20 rotate, they drive the fourth gear 23 to rotate forward and reverse. When the fourth gear 23 rotates forward and reverse, it drives the screw 19 to rotate. When the screw 19 rotates, it drives the bracket 8 to move up and down. When the bracket 8 moves, it drives the brush 27 to move up and down. When the brush 27 moves up and down, it cleans the filter 9.

[0035] 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. An anti-blocking energy-saving tubular air preheater, comprising a housing (1), characterized in that: An air inlet (2) is arranged at the top of the shell (1), an air outlet (5) is arranged at the bottom of the shell (1), a protective tube (3) is arranged on one side of the top of the shell (1), a first protective shell (4) is arranged on one side of the shell (1), and a second rotating rod (26) is arranged inside the first protective shell (4).

2. The anti-blocking and energy-saving tubular air preheater according to claim 1 is characterized in that: A frame (28) is fixed to one end of the outer shell (1), a filter screen (9) is arranged inside the frame (28), a second protective shell (6) is fixed to one end of the first protective shell (4), and the second protective shell (6) is arranged on one side of the outer shell (1).

3. The anti-blocking and energy-saving tubular air preheater according to claim 1 is characterized in that: An electric motor (10) is installed inside the protective tube (3), a second gear (12) is installed at the bottom of the electric motor (10), the outer surface of the second gear (12) is meshedly connected with two groups of first gears (11), a support rod (13) is fixed at the bottom of the two groups of first gears (11), a fan-shaped gear (14) is fixed at the bottom of the support rod (13), the outer surface of the fan-shaped gear (14) is meshedly connected with a tooth plate (15), a scraper (16) is fixed at one end of the tooth plate (15), and a plurality of groups of grooves (7) are fixed at one end of the scraper (16).

4. The anti-blocking energy-saving tubular air preheater according to claim 3 is characterized in that: A heat pipe (17) is slidably connected inside the plurality of grooves (7), and a baffle (18) is fixed to one end of the heat pipe (17).

5. The anti-blocking and energy-saving tubular air preheater according to claim 2 is characterized in that: A first rotating rod (25) is arranged inside the second protective shell (6), a first stopper (24) is fixed to the outer surface of the first rotating rod (25), a disc (21) is fixed to the bottom of the first rotating rod (25), and a thread (29) is fixed to half of the inner wall of the disc (21).

6. The anti-blocking and energy-saving tubular air preheater according to claim 5 is characterized in that: A third gear (20) is fixed inside the disc (21), and a half gear is fixed on the outer surface of the third gear (20). A fourth gear (23) is arranged on one side inside the disc (21), and the fourth gear (23) is meshingly connected with the thread (29) and the third gear (20). A screw rod (19) is fixed at the bottom of the fourth gear (23), and a bracket (8) is meshingly connected to the outer surface of the screw rod (19), and a brush (27) is fixed at one end of the bracket (8).

7. The anti-blocking and energy-saving tubular air preheater according to claim 5 is characterized in that: A second chain (32) is arranged inside the first limiter (24), and one end of the second chain (32) is rotatably connected to a second rotating rod (26), a second limiter (30) is fixed to an outer surface of the second rotating rod (26), a first chain (22) is arranged inside the second limiter (30), and one end of the first chain (22) is rotatably connected to a third limiter (31).

Images