CN112610971B - Automatic cleaning anti-blocking device of air preheater - Google Patents
Automatic cleaning anti-blocking device of air preheater Download PDFInfo
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- CN112610971B CN112610971B CN202011527178.3A CN202011527178A CN112610971B CN 112610971 B CN112610971 B CN 112610971B CN 202011527178 A CN202011527178 A CN 202011527178A CN 112610971 B CN112610971 B CN 112610971B
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- pipe
- blocking device
- water delivery
- cleaning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
- F23J3/02—Cleaning furnace tubes; Cleaning flues or chimneys
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
- F23L15/04—Arrangements of recuperators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/10—Intercepting solids by filters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses an automatic cleaning anti-blocking device of an air preheater, relates to the related field of air preheaters, and aims to solve the problem that in the prior art, because solid particles are contained in flue gas discharged from a tail flue of a boiler, the solid particles gradually adhere to cooling fins of the air preheater when the air preheater exchanges heat, and the heat exchange effect on air before the boiler is influenced after long-term use. The anti-blocking device comprises an anti-blocking device body, and is characterized in that a first cleaning anti-blocking unit is arranged at the upper end inside the anti-blocking device body, a second cleaning anti-blocking unit is arranged at the upper end inside the anti-blocking device body, the first cleaning anti-blocking unit and the second cleaning anti-blocking unit comprise a collecting drawer, the collecting drawer comprises a collecting outer frame, a collecting inner frame is arranged inside the collecting outer frame, particle collecting grooves are formed in the front end and the rear end between the collecting inner frame and the collecting outer frame, rotating rollers are arranged at the front end and the rear end of the upper end of the collecting drawer respectively, the rotating rollers synchronously rotate outwards, and particle collecting pieces are arranged on the outer side of the rotating rollers.
Description
Technical Field
The invention relates to the field of air pre-heaters, in particular to an automatic cleaning anti-blocking device of an air pre-heater.
Background
The air preheater is also called an air preheater for short, and is a preheating device for improving the heat exchange performance of the boiler and reducing the heat loss. The air preheater has the function of conducting heat carried in flue gas exhausted from a tail flue of the boiler to air before entering the boiler through the radiating fins, and preheating the air to a certain temperature, so that the air preheater is equipment for improving the heat exchange performance of the boiler and reducing energy consumption. The method is mainly used for coal-fired power station boilers. The device can be divided into a tube box type and a rotary type, wherein the rotary type is divided into a fan cover rotary type and a heating surface rotary type. The utility boiler is more often a rotary preheater with a heated surface. The application in boilers is generally two-compartment, three-compartment and four-compartment type, wherein the four-compartment type is more commonly used in circulating fluidized bed boilers.
The air preheater conducts heat carried in flue gas discharged from a tail flue of the boiler to air before entering the boiler through the radiating fins, the air is preheated to a certain temperature, but the flue gas discharged from the tail flue of the boiler contains solid particles, after the flue gas is denitrated and enters the air preheater, the solid particles can be adhered in the air preheater, so that the radiating fins are wrapped by the solid particles, the heat exchange effect is weakened after long-term use, the heating effect of the air preheater on the air entering from the front end of the boiler is obviously reduced, and the working efficiency of the whole heating system is reduced; therefore, the market is urgently required to develop an automatic cleaning anti-blocking device of the air preheater to help people solve the existing problems.
Disclosure of Invention
The invention aims to provide an automatic cleaning anti-blocking device for an air preheater, which is used for solving the problem that the heat exchange effect on air in front of a boiler is influenced after long-term use because solid particles are contained in flue gas discharged from a tail flue of the boiler and gradually adhere to radiating fins of the air preheater when the air preheater exchanges heat.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an automatic anti-blocking device that cleans of air preheater, includes anti-blocking device casing, the inside upper end of anti-blocking device casing is provided with first cleaning anti-blocking unit, the inside upper end of anti-blocking device casing is provided with the second cleaning anti-blocking unit, first cleaning anti-blocking unit and second cleaning anti-blocking unit all include the collection steamer tray, collect the steamer tray including collecting the frame, collect the inside of frame and be provided with the collection inside casing, collect inside casing and collect frame integrated into one piece, collect the inside casing and collect the front and back both ends between the frame and form the granule collecting vat, the front and back both ends of collecting the steamer tray upper end all are provided with the rotor, two the outside of rotor is rotated outwards in step, the outside of rotor is provided with the granule and collects piece, granule collection piece and rotor fixed connection, be provided with the temporary storage groove in the granule collection piece, the temporary storage groove direction of rotor outside granule collection piece is upwards, and the temporary storage groove position of outside granule collection piece corresponds, anti-blocking device casing one side is provided with the motor along one side of roller rotation case, two adjacent gear wheels are installed to the driven gear, two driven gear wheels are connected with two adjacent gear wheels, and two gear wheels are connected with the gear.
Preferably, the first cleaning anti-blocking unit and the second cleaning anti-blocking unit further comprise a water delivery main pipe, a water delivery branch pipe is arranged inside the anti-blocking device shell along the upper end of the rotating roller, the water delivery branch pipe is connected with the water delivery main pipe through a second three-way pipe, the water delivery branch pipe is connected with the inner wall of the anti-blocking device shell through a fixing piece, the water delivery branch pipe comprises a water delivery transverse pipe, a water delivery head is arranged on the water delivery transverse pipe, the water delivery head corresponds to the particle collecting groove in position, and the water delivery main pipe, the second three-way pipe, the water delivery branch pipe and the water delivery head are communicated.
Preferably, the left and right sides between collection inside casing and the collection frame form middle circulation groove, and the degree of depth of middle circulation groove is less than the degree of depth of granule collecting vat, the drainage is in charge of to the both sides of collecting steamer tray front end upper end, and the drainage is in charge of and the lower terminal surface of middle circulation groove flushes, two the drainage is in charge of and passes through horizontal drain pipe connection, the centre of horizontal drain pipe front end is provided with perpendicular drain pipe.
Preferably, the upper end of perpendicular drain pipe is connected with the drain hose, the drain hose on first cleaning anti-blocking unit and the second cleaning anti-blocking unit is connected through first three-way pipe, the one end that perpendicular drain pipe was kept away from to the drain hose is connected with the drain header pipe, the other end of drain header pipe is connected with the drain pump, the output of drain pump is connected with out the water header pipe, and drainage is in charge of, horizontal drain pipe, perpendicular drain pipe, drain hose, first three-way pipe and drain header pipe intercommunication.
Preferably, the particle collecting piece comprises a vertical smoke holding part and an oblique smoke dispersing part, the vertical smoke holding part is arranged at the upper end of the oblique smoke dispersing part, the vertical smoke holding part and the oblique smoke dispersing part are integrally formed, one side, far away from the vertical smoke holding part and the oblique smoke dispersing part, of the particle collecting piece is provided with an arc-shaped attaching part, the oblique smoke dispersing part is provided with a leak hole, and the leak hole penetrates through the oblique smoke dispersing part.
Preferably, triangular columns are arranged between the two rotating rollers and fixedly connected with the inner wall of the anti-blocking device shell, the upper end faces of the triangular columns are provided with arc portions and inclined portions, and the arc portions are located at the upper ends between the two inclined portions.
Preferably, the inner frame of collection steamer tray is provided with the filter screen, and the filter screen is provided with a plurality ofly, and a plurality of filter screens reduce in proper order from last to lower filtration pore, and the filtration pore diameter of the filter screen of the lower floor of collection steamer tray on the first anti-blocking unit that cleans is greater than the filtration pore diameter of the filter screen of the uppermost layer of collection steamer tray on the anti-blocking unit that cleans of second.
Preferably, the upper end of anti-blocking device casing is provided with the intake pipe, the lower extreme of anti-blocking device casing is provided with the outlet duct, intake pipe and outlet duct all are connected through collecting the fill with anti-blocking device casing, collect fill and intake pipe, outlet duct and the equal fixed connection of anti-blocking device casing.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention discloses a boiler air-conditioning device, which is characterized in that a first cleaning anti-blocking unit and a second cleaning anti-blocking unit are respectively arranged at the upper part and the lower part of the inside of a shell of the anti-blocking device, the first cleaning anti-blocking unit and the second cleaning anti-blocking unit respectively comprise a rotating roller and a collecting drawer, under the driving of a driving motor, one of intermediate gears is driven to rotate, a driven gear at the lower end of the first cleaning anti-blocking unit is meshed with the lower intermediate gear, the upper intermediate gear is meshed with the driven gear at the upper end, so that two driven gears connected with the rotating roller through a shaft synchronously rotate in the opposite outward direction, a temporary storage groove of a particle collecting piece on the rotating roller is positioned at the inner side of the rotating roller and upwards, downwards when the rotating roller is positioned at the outer side, so as to collect flue gas guided by a triangular column, air can downwards flow along leak holes, solid particles are reserved in the temporary storage groove of a particle collecting piece, the solid particles are poured into the particle collecting groove of the collecting drawer, the solid particles downwards flow through the leak holes, the air downwards flowing through the leak holes can be further filtered through a filter screen, the collection of the solid particles in the flue gas is completed, the solid particles are cleaned through the filter screen, the first cleaning unit and the second cleaning unit are repeatedly performed in the outward direction, the outward direction of the opposite directions, the temporary storage groove is upwards when the solid particles are gradually cleaned, the solid particles are discharged through the filter and the filter screen, and the tail part is gradually and the solid particles are gradually and the air-blocked by the heat exchanger.
2. According to the invention, the first cleaning anti-blocking unit and the second cleaning anti-blocking unit further comprise a water delivery main pipe, the water delivery main pipe is connected with a water delivery branch pipe through a second three-way pipe, the water delivery cross pipe of the water delivery branch pipe is positioned at the upper end position of the particle collecting tank, when the temporary storage tank of the particle collecting piece rotates to the upper end position of the particle collecting tank of the temporary storage tank, most solid particles can be normally poured into the particle collecting tank, but after the temporary storage tank of the particle collecting piece is used for a period of time, part of solid particles are adhered, the part of solid particles can be flushed down through the water delivery head of the water delivery cross pipe and are flushed into the particle collecting tank, the front particle collecting tank and the rear particle collecting tank of each collecting drawer are communicated through a middle circulating tank, and the solid particles sink into the bottom in water.
Drawings
FIG. 1 is a front view of an automatic cleaning anti-blocking device for an air preheater of the present invention;
FIG. 2 is a front view at A-A of the present invention;
FIG. 3 is a schematic view of the triangular prism of the present invention;
FIG. 4 is a schematic view of the structure of the particle collector of the present invention;
FIG. 5 is a schematic view of the structure of the bin of the present invention;
fig. 6 is a top view of the upper end of the interior of the anti-clogging device housing of the present invention.
In the figure: 1. an air inlet pipe; 2. an anti-blocking device housing; 3. an air outlet pipe; 4. a first cleaning anti-blocking unit; 5. a second cleaning anti-blocking unit; 6. an equipment box; 7. a collection drawer; 8. a horizontal drain pipe; 9. a vertical drain pipe; 10. a drain hose; 11. a first tee; 12. a water drain header; 13. a draining pump; 14. a water outlet main pipe; 15. a water delivery main pipe; 16. a driving motor; 17. an intermediate gear; 18. a driven gear; 19. a rotating roller; 20. a particle collection member; 21. a leak hole; 22. triangular columns; 23. an arc part; 24. a bevel portion; 25. an arc-shaped attaching part; 26. a temporary storage groove; 27. a vertical smoke-raking part; 28. oblique smoke-dispelling part; 29. collecting an outer frame; 30. collecting an inner frame; 31. a particle collection tank; 32. a middle flow channel; 33. drainage branch pipes; 34. a filter screen; 35. a water conveying branch pipe; 36. a fixing member; 37. a water delivery transverse pipe; 38. a water delivery head; 39. and a second three-way pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-6, an embodiment of the present invention is provided: the utility model provides an automatic cleaning anti-blocking device of air preheater, including anti-blocking device casing 2, the inside upper end of anti-blocking device casing 2 is provided with first cleaning anti-blocking unit 4, the inside upper end of anti-blocking device casing 2 is provided with second cleaning anti-blocking unit 5, first cleaning anti-blocking unit 4 and second cleaning anti-blocking unit 5 all include collection steamer tray 7, collection steamer tray 7 and anti-blocking device casing 2 inner wall sliding connection, collection steamer tray 7 includes and collects frame 29, be provided with the rubber layer around the front end of collection frame 29 both sides, thereby seal, the inside of collection frame 29 is provided with and collects inside casing 30, collection inside casing 30 and collection frame 29 integrated into one piece, the front and back both ends between collection inside casing 30 and the collection frame 29 form granule collecting vat 31, the lower extreme of granule collecting vat 31 is sealed, both ends all are provided with rotor 19 around the collection steamer tray 7 upper end, the two rotating rollers 19 synchronously rotate outwards, particle collecting pieces 20 are arranged on the outer sides of the rotating rollers 19, the particle collecting pieces 20 are fixedly connected with the rotating rollers 19, temporary storage grooves 26 are formed in the particle collecting pieces 20, the temporary storage grooves 26 of the particle collecting pieces 20 on the inner sides of the rotating rollers 19 are upward, the temporary storage grooves 26 of the particle collecting pieces 20 on the outer sides of the rotating rollers 19 are downward, particle collecting grooves 31 correspond to the temporary storage grooves 26 of the particle collecting pieces 20 on the outer sides, an equipment box 6 is arranged on one side of a housing 2 of the anti-blocking device along one side of the rotating rollers 19, a driving motor 16 is arranged in the equipment box 6, an intermediate gear 17 is arranged on one side of the driving motor 16, two intermediate gears 17 are arranged, driven gears 18 are arranged at two ends of the two intermediate gears 17, the two driven gears 18 are meshed with the adjacent two intermediate gears 17, the driven gears 18 are fixedly connected with the rotating rollers 19 through shafts, under the rotation of one of the intermediate gears 17 driven by the drive motor 16, the driven gear 18 at the lower end thereof meshes with the lower intermediate gear 17, the upper intermediate gear 17 meshes with the lower intermediate gear 17, and the upper intermediate gear 17 meshes with the driven gear 18 at the upper end, so that the two driven gears 18 connected with the rotating roller 19 by the shaft synchronously rotate in opposite directions to the outside.
Further, the first cleaning anti-blocking unit 4 and the second cleaning anti-blocking unit 5 further comprise a water delivery main pipe 15, a water delivery branch pipe 35 is arranged inside the anti-blocking device shell 2 along the upper end of the rotating roller 19, the water delivery branch pipe 35 is connected with the water delivery main pipe 15 through a second three-way pipe 39, the water delivery branch pipe 35 is connected with the inner wall of the anti-blocking device shell 2 through a fixing piece 36, the water delivery branch pipe 35 comprises a water delivery transverse pipe 37, a water delivery head 38 is arranged on the water delivery transverse pipe 37, the water delivery head 38 corresponds to the particle collecting groove 31 in position, the water delivery main pipe 15, the second three-way pipe 39, the water delivery branch pipe 35 and the water delivery head 38 are communicated, part of solid particles adhere to the temporary storage groove 26 of the particle collecting piece 20, and the solid particles in the temporary storage groove 26 of the particle collecting piece 20 are flushed down through the water delivery head 38 of the water delivery transverse pipe 37 and the particle collecting groove 31.
Further, the left and right sides between the collection inside casing 30 and the collection outside casing 29 form the middle circulation groove 32, the degree of depth of middle circulation groove 32 is less than the degree of depth of granule collecting vat 31, the drainage branch pipe 33 is installed to the both sides of collection steamer tray 7 front end upper end, drainage branch pipe 33 flushes with the lower terminal surface of middle circulation groove 32, moisture in the rear end granule collecting vat 31 can flow to the front end granule collecting vat 31 through middle circulation groove 32, thereby by drainage branch pipe 33 output, unnecessary moisture can evaporate under the flue gas heat effect, heat front end air along the flue gas that has handled, two drainage branch pipes 33 pass through horizontal drain pipe 8 and connect, the centre of horizontal drain pipe 8 front end is provided with perpendicular drain pipe 9.
Further, the upper end of the vertical drain pipe 9 is connected with a drain hose 10, the collection drawer 7 needs to be pulled out when the collection drawer 7 is cleaned, therefore, the drain hose 10 is arranged, auxiliary drainage such as a corrugated pipe can be further arranged, the drain hose 10 on the first cleaning anti-blocking unit 4 and the second cleaning anti-blocking unit 5 is connected through a first three-way pipe 11, one end, far away from the vertical drain pipe 9, of the drain hose 10 is connected with a drain main 12, the other end of the drain main 12 is connected with a drain pump 13, the output end of the drain pump 13 is connected with a water outlet main 14, and the drain branch pipe 33, the horizontal drain pipe 8, the vertical drain pipe 9, the drain hose 10, the first three-way pipe 11 and the drain main 12 are communicated.
Further, the particle collecting piece 20 includes vertical smoke holding portion 27 and slant smoke evacuation portion 28, and vertical smoke holding portion 27 is located the upper end of slant smoke evacuation portion 28, and vertical smoke holding portion 27 and slant smoke evacuation portion 28 integrated into one piece are provided with arc laminating portion 25 to one side of keeping away from vertical smoke holding portion 27 and slant smoke evacuation portion 28 on the particle collecting piece 20, are provided with the leak hole 21 on the slant smoke evacuation portion 28, and leak hole 21 runs through slant smoke evacuation portion 28.
Further, a triangular column 22 is arranged between the two rotating rollers 19, the triangular column 22 is fixedly connected with the inner wall of the anti-blocking device shell 2, an arc part 23 and an inclined part 24 are arranged on the upper end face of the triangular column 22, the arc part 23 is positioned at the upper end between the two inclined parts 24, and the triangular column 22 distributes the input flue gas to the front end and the rear end, so that solid particles in the flue gas are collected.
Further, the collecting inner frame 30 of the collecting drawer 7 is internally provided with a plurality of filter screens 34, the filter screens 34 are provided, and because the particle collecting pieces 20 of the rotating roller 19 rotate regularly and have gaps, solid particles in part of flue gas flow downwards without being collected, the solid particles are filtered through the filter screens 34, the filter holes of the filter screens 34 at the lowest layer of the collecting drawer 7 on the first cleaning anti-blocking unit 4 are sequentially reduced from top to bottom, the diameter of the filter holes of the filter screen 34 at the lowest layer of the collecting drawer 7 on the first cleaning anti-blocking unit 4 is larger than that of the filter screen 34 at the uppermost layer of the collecting drawer 7 on the second cleaning anti-blocking unit 5, after the first cleaning anti-blocking unit 4 processes, in order to improve the processing effect, the content of the solid particles in the flue gas entering the air preheater is further reduced, the second cleaning anti-blocking unit 5 is additionally arranged, the particle collecting pieces 20 on the second cleaning anti-blocking unit 5 process again, and the final processing is performed through the filter screen 34 on the second cleaning anti-blocking unit 5 after the processing.
Further, the upper end of anti-blocking device casing 2 is provided with intake pipe 1, and the lower extreme of anti-blocking device casing 2 is provided with outlet duct 3, and intake pipe 1 and outlet duct 3 all are connected through collecting the fill with anti-blocking device casing 2, collect fill and intake pipe 1, outlet duct 3 and anti-blocking device casing 2 all fixed connection.
Working principle: when the device is used, exhaust flue gas in a boiler tail flue enters the device through the air inlet pipe 1 before entering the air preheater after denitration, a first cleaning anti-blocking unit 4 and a second cleaning anti-blocking unit 5 are respectively arranged at the upper part and the lower part inside the anti-blocking device shell 2, the first cleaning anti-blocking unit 4 and the second cleaning anti-blocking unit 5 respectively comprise a rotating roller 19 and a collecting drawer 7, the flue gas firstly reaches the position of the first cleaning anti-blocking unit 4, one of the intermediate gears 17 is driven by a driving motor 16 to rotate, a driven gear 18 at the lower end of the intermediate gear is meshed with the lower intermediate gear 17, an upper intermediate gear 17 is meshed with the lower intermediate gear 17, the upper intermediate gear 17 is meshed with the driven gear 18 at the upper end, so that two driven gears 18 connected with the rotating roller 19 through a shaft synchronously and reversely rotate in the outer direction, a temporary storage groove 26 of a particle collecting piece 20 on the rotating roller 19 is positioned at the inner side of the rotating roller 19 upwards, the flue gas guided by a collecting triangular column 22 flows downwards along a drain hole 21, solid particles are left in the temporary storage groove 26, the solid particles flow downwards through the filter screen 21 when the rotating roller 19 to the temporary storage groove 20 to the outside, and the solid particles are further filtered and flow downwards through the filter screen 21. The smoke gas subsequently reaches the position of the second cleaning anti-blocking unit 5, and works the same as each structure in the first cleaning anti-blocking unit 4, so that the smoke gas with solid particles removed reaches the position of the air preheater through the air outlet pipe 3, and is conducted into the air before entering the boiler through the cooling fins, and the air is preheated to a certain temperature. After the device is used for a period of time, part of solid particles adhere to the temporary storage groove 26 of the particle collecting piece 20, the part of solid particles are flushed down through the water delivery head 38 of the water delivery transverse pipe 37 and are flushed into the particle collecting grooves 31, the front particle collecting groove 31 and the rear particle collecting groove 31 of each collecting drawer 7 are communicated through the middle circulating groove 32, the solid particles sink into the bottom in water, when the water level in the particle collecting grooves 31 is higher, the water is discharged from the water discharge branch pipe 33, the water discharge pump 13 pumps the water through the horizontal water discharge pipe 8, the vertical water discharge pipe 9, the water discharge hose 10, the water discharge main pipe 12 and the water outlet main pipe 14, automatic cleaning of the solid particles is completed, the solid particles are all placed in the particle collecting grooves 31, and the particle collecting grooves 31 of the collecting drawers 7 are cleaned regularly.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides an automatic cleaning anti-blocking device of air preheater, includes anti-blocking device casing (2), its characterized in that: the anti-blocking device comprises an anti-blocking device shell (2), wherein a first cleaning anti-blocking unit (4) is arranged at the upper end inside the anti-blocking device shell (2), a second cleaning anti-blocking unit (5) is arranged at the upper end inside the anti-blocking device shell (2), the first cleaning anti-blocking unit (4) and the second cleaning anti-blocking unit (5) both comprise a collecting drawer (7), the collecting drawer (7) comprises a collecting outer frame (29), a collecting inner frame (30) is arranged inside the collecting outer frame (29), the collecting inner frame (30) and the collecting outer frame (29) are integrally formed, particle collecting grooves (31) are formed at the front end and the rear end between the collecting inner frame (30) and the collecting outer frame (29), rotating rollers (19) are respectively arranged at the front end and the rear end of the upper end of the collecting drawer (7), the rotating rollers (19) synchronously rotate outwards, particle collecting pieces (20) are fixedly connected with the rotating rollers (19), temporary storage grooves (26) are arranged in the collecting members (20), the inner sides of the rotating rollers (19) correspond to the rotating grooves (26) of the rotating rollers (26) in the directions of the rotating rollers (20) to the rotating grooves (20) of the rotating rollers (26), the anti-blocking device comprises an anti-blocking device shell (2), wherein an equipment box (6) is arranged on one side of a rotating roller (19), a driving motor (16) is arranged in the equipment box (6), an intermediate gear (17) is arranged on one side of the driving motor (16), two intermediate gears (17) are arranged, driven gears (18) are arranged at two ends of each intermediate gear (17), the two driven gears (18) are meshed with the adjacent two intermediate gears (17), and the driven gears (18) are fixedly connected with the rotating roller (19) through shafts.
2. The automatic cleaning and anti-blocking device of the air preheater according to claim 1, wherein: the first cleaning anti-blocking unit (4) and the second cleaning anti-blocking unit (5) further comprise a water delivery main pipe (15), the anti-blocking device shell (2) is internally provided with a water delivery branch pipe (35) along the upper end of the rotating roller (19), the water delivery branch pipe (35) is connected with the water delivery main pipe (15) through a second three-way pipe (39), the water delivery branch pipe (35) is connected with the inner wall of the anti-blocking device shell (2) through a fixing piece (36), the water delivery branch pipe (35) comprises a water delivery transverse pipe (37), a water delivery head (38) is arranged on the water delivery transverse pipe (37), the water delivery head (38) corresponds to the position of the particle collecting groove (31), and the water delivery main pipe (15), the second three-way pipe (39), the water delivery branch pipe (35) and the water delivery head (38) are communicated.
3. The automatic cleaning and anti-blocking device of the air preheater according to claim 1, wherein: the utility model discloses a particle collecting device, including collecting inner frame (30), collecting frame (29), drainage branch pipe (33) are installed to the both sides of collecting drawer (7) front end upper end, and drainage branch pipe (33) flush with the lower terminal surface of middle circulation groove (32), two drainage branch pipe (33) are connected through horizontal drain pipe (8), the centre of horizontal drain pipe (8) front end is provided with perpendicular drain pipe (9).
4. An automatic cleaning and anti-blocking device for an air preheater according to claim 3, wherein: the upper end of perpendicular drain pipe (9) is connected with drain hose (10), drain hose (10) on first cleaning anti-blocking unit (4) and the second cleaning anti-blocking unit (5) are connected through first three-way pipe (11), one end that perpendicular drain pipe (9) was kept away from to drain hose (10) is connected with drain header pipe (12), the other end of drain header pipe (12) is connected with drain pump (13), the output of drain pump (13) is connected with play water header pipe (14), and drain branch pipe (33), horizontal drain pipe (8), perpendicular drain pipe (9), drain hose (10), first three-way pipe (11) and drain header pipe (12) intercommunication.
5. The automatic cleaning and anti-blocking device of the air preheater according to claim 1, wherein: the particle collecting piece (20) comprises a vertical smoke holding part (27) and an oblique smoke dispersing part (28), the vertical smoke holding part (27) is located at the upper end of the oblique smoke dispersing part (28), the vertical smoke holding part (27) and the oblique smoke dispersing part (28) are integrally formed, one side, far away from the vertical smoke holding part (27) and the oblique smoke dispersing part (28), of the particle collecting piece (20) is provided with an arc-shaped attaching part (25), the oblique smoke dispersing part (28) is provided with a leak hole (21), and the leak hole (21) penetrates through the oblique smoke dispersing part (28).
6. The automatic cleaning and anti-blocking device of the air preheater according to claim 1, wherein: a triangular column (22) is arranged between the two rotating rollers (19), the triangular column (22) is fixedly connected with the inner wall of the anti-blocking device shell (2), an arc part (23) and an inclined part (24) are arranged on the upper end face of the triangular column (22), and the arc part (23) is positioned at the upper end between the two inclined parts (24).
7. An automatic cleaning and anti-blocking device for an air preheater according to claim 3, wherein: the inner collecting frame (30) of the collecting drawer (7) is internally provided with a plurality of filter screens (34), the filter screens (34) are sequentially reduced from top to bottom, and the diameter of the filter hole of the filter screen (34) at the lowest layer of the collecting drawer (7) on the first cleaning anti-blocking unit (4) is larger than that of the filter hole of the filter screen (34) at the uppermost layer of the collecting drawer (7) on the second cleaning anti-blocking unit (5).
8. The automatic cleaning and anti-blocking device of the air preheater according to claim 1, wherein: the anti-blocking device is characterized in that an air inlet pipe (1) is arranged at the upper end of the anti-blocking device shell (2), an air outlet pipe (3) is arranged at the lower end of the anti-blocking device shell (2), the air inlet pipe (1) and the air outlet pipe (3) are connected with the anti-blocking device shell (2) through collecting hoppers, and the collecting hoppers are fixedly connected with the air inlet pipe (1), the air outlet pipe (3) and the anti-blocking device shell (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011527178.3A CN112610971B (en) | 2020-12-22 | 2020-12-22 | Automatic cleaning anti-blocking device of air preheater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011527178.3A CN112610971B (en) | 2020-12-22 | 2020-12-22 | Automatic cleaning anti-blocking device of air preheater |
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| CN112610971A CN112610971A (en) | 2021-04-06 |
| CN112610971B true CN112610971B (en) | 2023-06-20 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09108524A (en) * | 1995-10-23 | 1997-04-28 | Takenaka Komuten Co Ltd | Air filter for automatic filter material reproduction |
| CN109224670A (en) * | 2018-10-12 | 2019-01-18 | 安徽天诚环保机械有限公司 | One kind being used for dust-removal cloth-bag cleaning, drying equipment |
| CN210449341U (en) * | 2019-08-22 | 2020-05-05 | 六盘水师范学院 | Waste residue processing apparatus for mining |
| CN211965120U (en) * | 2020-04-10 | 2020-11-20 | 扬州文丰机械制造有限公司 | Blade dust removal structure in blade production |
-
2020
- 2020-12-22 CN CN202011527178.3A patent/CN112610971B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09108524A (en) * | 1995-10-23 | 1997-04-28 | Takenaka Komuten Co Ltd | Air filter for automatic filter material reproduction |
| CN109224670A (en) * | 2018-10-12 | 2019-01-18 | 安徽天诚环保机械有限公司 | One kind being used for dust-removal cloth-bag cleaning, drying equipment |
| CN210449341U (en) * | 2019-08-22 | 2020-05-05 | 六盘水师范学院 | Waste residue processing apparatus for mining |
| CN211965120U (en) * | 2020-04-10 | 2020-11-20 | 扬州文丰机械制造有限公司 | Blade dust removal structure in blade production |
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| CN112610971A (en) | 2021-04-06 |
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