CN104406177A - Tubular air preheater impulse type ash removal device - Google Patents
Tubular air preheater impulse type ash removal device Download PDFInfo
- Publication number
- CN104406177A CN104406177A CN201410702181.2A CN201410702181A CN104406177A CN 104406177 A CN104406177 A CN 104406177A CN 201410702181 A CN201410702181 A CN 201410702181A CN 104406177 A CN104406177 A CN 104406177A
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- fixedly connected
- water pipe
- air
- airduct
- air preheater
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Abstract
A tubular air preheater impulse type ash removal device comprises an air pipe; two ends of the air pipe are fixedly connected with baffle plates; a water pipe is connected inside the air pipe in a penetration mode; the water pipe is fixedly connected with the baffle plates; the left end of the water pipe is fixedly connected with a water pipe connector; the right end of the water pipe is fixedly connected with a water pipe spray nozzle; an air inlet is designed in the left portion of the air pipe; an air guiding hole is formed in the right portion of the air pipe; the right end portion of the air pipe is connected with a rotary circular ring through a bearing; the rotary circular ring is corresponding to the air guiding hole; the periphery of the rotary circular ring are provided with inverse movement spray holes; the right end of the rotary circular ring is fixedly connected with blades; right ends of the blades are fixedly connected through a fixed circular plate; an air leakage hole is designed at a connecting position of the rotary circular ring and the left end of the air pipe.
Description
Technical field
The present invention relates to a kind of deashing device, particularly relate to a kind of tubular air preheater impulse dust remover.
Background technology
Giant easily causes air preheater pipeline secondary injury because hydraulic pressure is higher, and compressed air has good effect to the lighter pipeline of blocking, for the pipeline DeGrain that blocking is more serious.Impulse tubular air preheater dust remover is we have invented in conjunction with above 2.Because flue gas carries out sufficient heat exchange at air preheater place and the outer cold air of stove, air preheater porch flue gas is warm is down to less than 70 DEG C, easy condensation forms black dirt and gathers at this, long-play easily causes air preheater plugging, result in blockage when economizer is revealed, affect boiler operatiopn, time serious, boiler breakdowns blowing out can be caused.Most of power plant adopts giant or compressed air to clear up.Giant easily causes air preheater pipeline secondary injury because hydraulic pressure is higher, and compressed air has good effect to the lighter pipeline of blocking, for the pipeline DeGrain that blocking is more serious.
Summary of the invention
The object of this invention is to provide a kind of tubular air preheater impulse dust remover can avoiding preheater tube being injured, ash-removal effect is good.
For achieving the above object, the technical solution used in the present invention is: a kind of tubular air preheater impulse dust remover, comprise airduct, airduct two ends are fixedly connected with baffle plate, it is characterized in that: in airduct, cross-under has water pipe, water pipe is fixedly connected with baffle plate, the left end of water pipe is fixedly connected with water pipe head, the right-hand member of water pipe is fixedly connected with aqueduct shower nozzle, airduct left part is designed with air inlet, airduct right part has gas port, the right part of airduct is connected with rotating ring by bearing, rotating ring is corresponding with described gas port, the periphery of rotating ring has reaction spray orifice, the right-hand member of rotating ring is fixedly connected with blade, the right-hand member of blade is fixedly connected with by fixed disc, the left end junction of rotating ring and airduct is designed with bleeder port.
In this structure, described reaction spray orifice is angling hole.
Advantageous effect of the present invention is: due to this structure of the present invention, so use the present invention to have following advantage, 1, the service life of air preheater is extended, employing giant was cleared up in the past, each cleaning rear section air preheater pipeline wall thickness 1.5mm is damaged, and this device only carries out moistening by a small amount of low-pressure water to black dirt, to pipeline without any injury; 2, wet blasting efficiency is higher, and black dirt is under the washing away of water, and intensity step-down, cleaning efficiency is higher.3, compressed air cleaning can make the surrounding dust stratification cleaning of tube wall more thorough, and the mixture of water and air forms bubbling in air preheat organ pipe, outside the timely discharge pipe of energy; 4, operation is more laborsaving, because dust remover self balances the external force that wind and water produce, is convenient to worker's execute-in-place.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A direction view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1.
In accompanying drawing: 1, water pipe head; 2, air inlet; 3, airduct; 4, bleeder port; 5, reaction spray orifice; 6, gas port; 7, bearing; 8, aqueduct shower nozzle; 9, blade; 10, fixed disc; 11, annulus is turned; 12, water pipe.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
The present invention is as Fig. 1, 2, shown in 3, a kind of tubular air preheater impulse dust remover, comprise airduct 3, airduct 3 two ends are fixedly connected with baffle plate, it is characterized in that: in airduct 3, cross-under has water pipe 12, water pipe 12 is fixedly connected with baffle plate, the left end of water pipe 12 is fixedly connected with water pipe head 1, the right-hand member of water pipe 12 is fixedly connected with aqueduct shower nozzle 8, airduct 3 left part is designed with air inlet 2, airduct 3 right part has gas port 6, the right part of airduct 3 is connected with rotating ring 11 by bearing 7, rotating ring 11 is corresponding with described gas port 6, the periphery of rotating ring 11 has reaction spray orifice 5, the right-hand member of rotating ring 11 is fixedly connected with blade 9, the right-hand member of blade 9 is fixedly connected with by fixed disc 10, rotating ring 11 is designed with bleeder port 4 with the left end junction of airduct 3.In the present embodiment, described reaction spray orifice 5 is angling hole.
When using of the present invention, the present invention is placed in preheater tube, wind regime is connected at air inlet, water source is connected in water pipe head, source pressure is less than 0.2Mpa, compressed air pressure is less than 0.3Mpa, such water is sprayed water from aqueduct shower nozzle by water pipe head, softening, cut the black dirt in moistening tubular air preheater, another road compressed air enters in airduct through air inlet, then rotating room is entered through gas port, the assembly of bearing driven rotary annulus and the blade be fixed on airduct is driven together to rotate by the effect of reaction spray orifice, the recoil of discharging spout generation from water pipe can fully be offset by the air of simultaneously discharging from bleeder port.
After the moistening black dirt of water, utilize compressed air to get excited to be fixed on rotating ring on tube wall drive the blade rotary of front side clear up on the one hand moistening after black dirt, the mixture of the unnecessary black dirt after cleaning, water and air can be discharged in time on the other hand, can clean the tube wall of air preheater from reaction spray orifice simultaneously.From the recoil of gas for producing after balancing pipeline ejection water that the bleeder port between airduct and rotating ring is discharged.The pressure of water does not need too high can protection tube wall in the process, can not cause secondary injury.
CFBB JG-130/5.3-the MQ of existing two 75t/h CFBB JG-75/5.3-MQ and, the 130 t/h spoil of Gangue Power Plant and coal slime multifuel combustion is tubular air preheater, after blowing out, in deashing process, use the impulse tubular air preheater dust remover working time to shorten to 4 hours by original 16 hours, the service life of air preheater was extended for present 6 years by original 3 years, and during deashing, zero injury has been accomplished to air preheater in shutdown maintenance process, after deashing, the plugging rate of air preheater reduces greatly, boiler negative pressure keeps better, boiler operatiopn is stablized, boiler load keeps specified operation for a long time.
Claims (2)
1. a tubular air preheater impulse dust remover, comprise airduct (3), airduct (3) two ends are fixedly connected with baffle plate, it is characterized in that: airduct (3) interior cross-under has water pipe (12), water pipe (12) is fixedly connected with baffle plate, the left end of water pipe (12) is fixedly connected with water pipe head (1), the right-hand member of water pipe (12) is fixedly connected with aqueduct shower nozzle (8), airduct (3) left part is designed with air inlet (2), airduct (3) right part has gas port (6), the right part of airduct (3) is connected with rotating ring (11) by bearing (7), rotating ring (11) is corresponding with described gas port (6), the periphery of rotating ring (11) has reaction spray orifice (5), the right-hand member of rotating ring (11) is fixedly connected with blade (9), the right-hand member of blade (9) is fixedly connected with by fixed disc (10), rotating ring (11) is designed with bleeder port (4) with the left end junction of airduct (3).
2. a kind of tubular air preheater impulse dust remover according to claim 1, it is characterized in that: described reaction spray orifice (5) is angling hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410702181.2A CN104406177B (en) | 2014-11-28 | 2014-11-28 | Tubular air preheater impulse dust remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410702181.2A CN104406177B (en) | 2014-11-28 | 2014-11-28 | Tubular air preheater impulse dust remover |
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| Publication Number | Publication Date |
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| CN104406177A true CN104406177A (en) | 2015-03-11 |
| CN104406177B CN104406177B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410702181.2A Active CN104406177B (en) | 2014-11-28 | 2014-11-28 | Tubular air preheater impulse dust remover |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013933A (en) * | 2017-05-24 | 2017-08-04 | 南京博沃科技发展有限公司 | A kind of anti-low temperature condensation of tubular air preheater and the method and system for blocking up ash |
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| CN204268495U (en) * | 2014-11-28 | 2015-04-15 | 枣庄矿业（集团）有限责任公司柴里煤矿 | Tubular air preheater impulse dust remover |
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2014
- 2014-11-28 CN CN201410702181.2A patent/CN104406177B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3559220A (en) * | 1968-05-29 | 1971-02-02 | William H Wisdom | Portable rug dyeing machine and method |
| CN2299995Y (en) * | 1997-06-06 | 1998-12-09 | 许能贵 | Sound soot blower for internal chamber fire box |
| CN2516838Y (en) * | 2002-01-22 | 2002-10-16 | 杨本洛 | Low-frequency sound-wave soot blower |
| US20100275857A1 (en) * | 2007-09-04 | 2010-11-04 | Clyde Bergemann Gmbh | Device for cleaning a boiler of a combustor, and method for the operation thereof |
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| CN103994451A (en) * | 2014-05-23 | 2014-08-20 | 浙江莱梦德电力设备有限公司 | Soot blower |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013933A (en) * | 2017-05-24 | 2017-08-04 | 南京博沃科技发展有限公司 | A kind of anti-low temperature condensation of tubular air preheater and the method and system for blocking up ash |
| CN107013933B (en) * | 2017-05-24 | 2023-04-07 | 南京博沃科技发展有限公司 | Method and system for preventing low-temperature dewing and ash blocking of tubular air preheater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104406177B (en) | 2016-08-24 |
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