CN214426048U

CN214426048U - Air preheater is with preventing dustproof construction who blocks up

Info

Publication number: CN214426048U
Application number: CN202022659134.8U
Authority: CN
Inventors: 牛赛赛; 张宏; 周亚军; 何虹町; 储晓煜
Original assignee: Anhui Wanneng Electric Power Operation And Maintenance Co ltd
Current assignee: Anhui Wanneng Electric Power Operation And Maintenance Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2021-10-19
Anticipated expiration: 2031-07-30

Abstract

The utility model discloses an air preheater is with preventing dustproof construction who blocks up relates to air preheater constructional equipment field, to the stifled ash of easy production that exists of current air preheater, security and inefficiency, the problem that the energy consumption is high, now proposes following scheme, and it includes the box, the box inboard is provided with tuber pipe and tobacco pipe, the tuber pipe top is provided with hot air exitus, one side that hot air exitus was kept away from to the tuber pipe is provided with the cold wind entry, the tobacco pipe is close to the one end inboard of cold wind entry and installs the filter plate, the filter plate mid-mounting has the axis of rotation, the one end fixed mounting that the axis of rotation is close to the cold wind entry has the scraper blade, the one end fixed mounting that the scraper blade was kept away from to the axis of rotation has the rotating fan blade, the tobacco pipe top is provided with hot cigarette entry. The utility model discloses novel structure, and clear up smoke and dust automatically, the clearance degree of difficulty is low, prevents blockking up with dustproof effectual, reduces smoke exhaust temperature, heats the required air of burning, improves combustion efficiency's effect.

Description

Air preheater is with preventing dustproof construction who blocks up

Technical Field

The utility model relates to an air preheater constructional device field especially relates to an air preheater is with preventing dustproof construction who blocks up.

Background

The air preheater is used for conducting heat carried in flue gas discharged from a flue at the tail part of the boiler to air before entering the boiler through radiating fins to preheat the air to a certain temperature, and the heat pipe type air preheater is used for preheating combustion-supporting air of the boiler or drying by utilizing heat energy carried by the flue gas at the outlet of the boiler through superconducting heat transfer of heat pipes.

However, the existing air preheater is easy to generate ash blockage in the using process, the ash blockage of the air preheater not only affects the operation safety of a boiler but also obviously reduces the efficiency of the boiler, the unit consumption of a fan is obviously increased, the temperature of exhaust gas is increased, and when the temperature is serious, a desulfurization system cannot normally operate due to overhigh temperature of the inlet flue gas, so that the effective prevention and control of the ash blockage of the air preheater is very important.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of air preheater is with preventing dustproof construction of jam has solved the stifled ash of easy production that current air preheater exists, security and inefficiency, problem that the energy consumption is high.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an anti-blocking dustproof structure for an air preheater comprises a box body, wherein an air pipe and a smoke pipe are arranged on the inner side of the box body, a hot air outlet is formed in the top end of the air pipe, a cold air inlet is formed in one side, away from the hot air outlet, of the air pipe, a filter plate is arranged on the inner side, close to the cold air inlet, of the smoke pipe, a rotating shaft is arranged in the middle of the filter plate, a scraper is fixedly arranged at one end, close to the cold air inlet, of the rotating shaft, a rotating fan blade is fixedly arranged at one end, away from the scraper, of the rotating shaft, a hot smoke inlet is formed in the top end of the smoke pipe, a cold smoke outlet is formed in one side, away from the hot smoke inlet, of the smoke pipe, a protective box is fixedly arranged at the top end of the box body, a servo motor is fixedly arranged on the inner side, close to the box body, a rotating rod is fixedly arranged on an output shaft, close to one side of the box body, baffles are fixedly arranged at two ends of the rotating rod, the dwang runs through tuber pipe and tobacco pipe, the dwang is located the equal fixed mounting of lateral wall of tuber pipe and tobacco pipe inboard has sealed flabellum.

Preferably, sealed flabellum all uses the axis of dwang to be the original point and is annular array distribution, one side that tuber pipe and tobacco pipe are close to sealed flabellum all is provided with sealed rotating groove, sealed rotating groove all with sealed flabellum sealed the matching of each other.

Preferably, the rotating fan blades are distributed in an annular array by taking central axes of the filter plates and the rotating shafts as original points, the rotating shafts are rotatably connected with the filter plates and penetrate through the filter plates, and the scraping plates are matched with the filter plates.

Preferably, the air pipe and the smoke pipe are S-shaped, the air pipe and the smoke pipe are matched with each other, and two ends of the air pipe and two ends of the smoke pipe penetrate through the side wall of the box body.

Preferably, the rotating rod and the baffle are both rotatably connected with the box body, and the baffle is embedded in the box body.

Preferably, the servo motor and the rotating rod are consistent with the central line of the box body.

The utility model has the advantages that:

1. drive the dwang through setting up servo motor and rotate, and make the baffle carry out spacing rotation to the dwang in the box inside, drive sealed flabellum and rotate, accelerate the circulation speed of the inboard air of tuber pipe and tobacco pipe and flue gas with higher speed to the flue gas ash in the drive flue gas flows, avoids the smoke and dust to block up in the tobacco pipe.

2. The filter plate is arranged to filter the entering air, the air drives the rotating fan blades to rotate in the flowing process, the rotating fan blades drive the rotating shaft to rotate, the scraper blades rotate on the filter plate, the filter plate is cleaned, and the filter plate is prevented from being blocked while dust is prevented.

3. Through setting up tuber pipe and tobacco pipe into the S type, increase the contact of tuber pipe and tobacco pipe, optimize empty effect in advance, reduce the exhaust gas temperature, the required air of heating burning improves combustion efficiency' S effect.

To sum up, this structure is automatic to be cleared up smoke and dust, and the clearance degree of difficulty is low, prevents blockking up with dustproof effectual, reduces the exhaust gas temperature, heats the required air of burning, improves combustion efficiency's effect.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic sectional view of the present invention.

Fig. 3 is a schematic cross-sectional view taken along line a-a of fig. 1 according to the present invention.

Fig. 4 is a partially enlarged view of the point B in fig. 2 according to the present invention.

Reference numbers in the figures: 1. a box body; 2. an air duct; 3. a smoke pipe; 4. a cold air inlet; 5. a cold smoke outlet; 6. a hot air outlet; 7. a hot smoke inlet; 8. a protective box; 9. a servo motor; 10. rotating the rod; 11. a baffle plate; 12. sealing the fan blades; 13. sealing the rotating groove; 14. filtering the plate; 15. a rotating shaft; 16. rotating the fan blades; 17. a scraper.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, an anti-clogging dustproof structure for an air preheater comprises a box body 1, wherein an air pipe 2 and a smoke pipe 3 are arranged on the inner side of the box body 1, a hot air outlet 6 is arranged at the top end of the air pipe 2, a cold air inlet 4 is arranged on one side, away from the hot air outlet 6, of the air pipe 2, a filter plate 14 is arranged on the inner side of one end, close to the cold air inlet 4, of the smoke pipe 3, a rotating shaft 15 is arranged in the middle of the filter plate 14, a scraper 17 is fixedly arranged at one end, close to the cold air inlet 4, of the rotating shaft 15, a rotating fan blade 16 is fixedly arranged at one end, away from the scraper 17, of the rotating shaft 15, a hot smoke inlet 7 is arranged at the top end of the smoke pipe 3, a cold smoke outlet 5 is arranged on one side, away from the hot smoke inlet 7, of the smoke pipe 3, a protective box 8 is fixedly arranged at the top end of the box body 1, and a servo motor 9 is fixedly arranged on the inner side, close to the protective box 8, the output shaft fixed mounting that servo motor 9 is close to 1 one side of box has dwang 10, the equal fixed mounting in dwang 10 both ends has baffle 11, dwang 10 runs through tuber pipe 2 and tobacco pipe 3, dwang 10 is located the equal fixed mounting of the inboard lateral wall of tuber pipe 2 and tobacco pipe 3 and has sealed flabellum 12, sealed flabellum 12 all uses the axis of dwang 10 to be the origin and is annular array distribution, one side that tuber pipe 2 and tobacco pipe 3 are close to sealed flabellum 12 all is provided with sealed rotor groove 13, sealed rotor groove 13 all seals up with sealed flabellum 12 mutually and matches, rotor blade 16 uses the axis of filter plate 14 and rotation axis 15 to be the origin and is annular array distribution, rotation axis 15 is connected with the rotation of filter plate 14, and rotation axis 15 runs through tuber pipe 14, scraper blade 17 matches with

filter plate

14, 2 and tobacco pipe 3 all are the S type, and tuber pipe 2 and tobacco pipe 3 match each other, and

tuber pipe

2 and 3 both ends of tobacco pipe all run through the lateral wall of box 1, dwang 10 and baffle 11 all rotate with box 1 and be connected, and baffle 11 all embedded in box 1, servo motor 9 and dwang 10 all are unanimous with the central line of box 1.

The working principle is as follows: when the anti-blocking dustproof structure for the air preheater is used, firstly, the anti-blocking dustproof structure for the air preheater is matched with a smoke exhaust device needing to use the air preheater, a hot air outlet 6 and a hot smoke inlet 7 in the anti-blocking dustproof structure for the air preheater are respectively matched with a smoke exhaust channel and an air inlet pipe, then the hot air outlet 6 and the hot smoke inlet 7 are respectively connected with the smoke exhaust channel and the air inlet pipe, air is put into an air pipe 2 from a cold air inlet 4 according to the use requirement, the air flows in the air pipe 2 to drive a sealing fan blade 12 to rotate on the inner side of the air pipe 2, so that the air is exhausted from the hot air outlet 6, meanwhile, the smoke is put into a smoke pipe 3 through the hot smoke inlet 7, the smoke flows in the smoke pipe 3 to drive the sealing fan blade 12 to rotate on the inner side of the smoke pipe 3, so that the smoke is exhausted through a cold smoke outlet 5, and the temperature of the smoke rises in the flowing process, the temperature of the smoke pipe 3 is increased to increase the temperature of the air pipe 2, and the temperature of the air pipe 2 is increased to increase the temperature of the air flowing inside, so that the effects of reducing the smoke exhaust temperature, heating the air required by combustion and improving the combustion efficiency are achieved;

when the smoke dust remover is used, the servo motor 9 on the inner side of the protective box 8 is started according to use requirements, the servo motor 9 works and rotates to enable an output shaft to rotate, the output shaft rotates to enable a rotating rod 10 fixedly connected with the output shaft to rotate, the rotating rod 10 rotates and simultaneously enables baffle plates 11 fixedly connected with two ends of the rotating rod to rotate on the inner side of the box body 1, the rotating rod 10 rotates to enable the rotating rod 10 to fixedly connected with the side wall of the box body, sealing fan blades 12 respectively located on the inner sides of the air pipe 2 and the smoke pipe 3 to rotate, and the sealing fan blades 12 rotate to accelerate the circulation speed of air and smoke on the inner sides of the air pipe 2 and the smoke pipe 3, so that smoke dust in smoke is driven to flow, and blockage is avoided;

when air and smoke pass through the cold air inlet 4, the air is filtered through the filter plate 14, in the process of filtering the air, the air circulation speed drives the rotating fan blades 16 to rotate, the rotating fan blades 16 rotate to enable the rotating shafts 15 fixedly connected with the rotating fan blades to rotate on the inner sides of the filter plates 14, the rotating shafts 15 rotate to enable the scraping plates 17 fixedly connected with the rotating shafts 15 to rotate, the scraping plates 17 rotate to clean the filter plates 14, and the filter plates 14 are prevented from being blocked while dust is prevented.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an air preheater is with dustproof construction who prevents blockking up, includes box (1), its characterized in that, box (1) inboard is provided with tuber pipe (2) and tobacco pipe (3), tuber pipe (2) top is provided with hot air outlet (6), one side that hot air outlet (6) were kept away from in tuber pipe (2) is provided with cold wind entry (4), filter plate (14) are installed to the one end inboard that tobacco pipe (3) are close to cold wind entry (4), filter plate (14) mid-mounting has axis of rotation (15), the one end fixed mounting that axis of rotation (15) are close to cold wind entry (4) has scraper blade (17), the one end fixed mounting that scraper blade (17) were kept away from in axis of rotation (15) has rotating fan blade (16), tobacco pipe (3) top is provided with hot cigarette entry (7), one side that hot cigarette entry (7) were kept away from in tobacco pipe (3) is provided with cold cigarette export (5), the utility model discloses a cigarette case, including box (1), protection box (8), inboard fixed mounting that protection box (8) are close to box (1) has servo motor (9), output shaft fixed mounting that servo motor (9) are close to box (1) one side has dwang (10), the equal fixed mounting in dwang (10) both ends has baffle (11), dwang (10) run through tuber pipe (2) and tobacco pipe (3), the equal fixed mounting of lateral wall that dwang (10) are located tuber pipe (2) and tobacco pipe (3) inboard has sealed flabellum (12).

2. The anti-blocking dustproof structure for the air preheater according to claim 1, wherein the sealing fan blades (12) are distributed in an annular array with a central axis of the rotating rod (10) as an origin, the air pipe (2) and the smoke pipe (3) are provided with sealing rotating grooves (13) on one sides close to the sealing fan blades (12), and the sealing rotating grooves (13) are matched with the sealing fan blades (12) in a sealing manner.

3. The anti-blocking dustproof structure for the air preheater is characterized in that the rotating fan blades (16) are distributed in an annular array by taking central axes of the filter plates (14) and the rotating shafts (15) as origins, the rotating shafts (15) are rotatably connected with the filter plates (14), the rotating shafts (15) penetrate through the filter plates (14), and the scrapers (17) are matched with the filter plates (14).

4. The anti-clogging dustproof structure for the air preheater according to claim 1, wherein the air duct (2) and the smoke duct (3) are both S-shaped, the air duct (2) and the smoke duct (3) are matched with each other, and both ends of the air duct (2) and the smoke duct (3) penetrate through the side wall of the box body (1).

5. The anti-blocking dustproof structure for the air preheater according to claim 1, wherein the rotating rod (10) and the baffle plate (11) are both rotatably connected with the box body (1), and the baffle plate (11) is embedded in the box body (1).

6. The anti-blocking dustproof structure for the air preheater according to claim 1, wherein the servo motor (9) and the rotating rod (10) are consistent with the central line of the box body (1).