CN205288692U - Dust remover smoke box air flow distribution device that admits air - Google Patents

Dust remover smoke box air flow distribution device that admits air Download PDF

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Publication number
CN205288692U
CN205288692U CN201521083168.XU CN201521083168U CN205288692U CN 205288692 U CN205288692 U CN 205288692U CN 201521083168 U CN201521083168 U CN 201521083168U CN 205288692 U CN205288692 U CN 205288692U
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China
Prior art keywords
smoke box
distribution device
air inlet
airflow
inlet smoke
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CN201521083168.XU
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Chinese (zh)
Inventor
贾燕
徐传海
仇晓龙
闵山山
陈佳乐
匡云
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China Power Engineering Consultant Group Central Southern China Electric Power Design Institute Corp
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China Power Engineering Consultant Group Central Southern China Electric Power Design Institute Corp
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Abstract

The utility model discloses a dust remover smoke box air flow distribution device that admits air comprises airflow distribution plate, sets up in the dust remover admits air the horn mouth of smoke box flaring, dust remover smoke box air flow distribution device that admits air is bottom open -ended four sides toper, the sensing on dust remover smoke box air flow distribution device that admits air's top is opposite with the air current flow direction, the last distribution of dust remover smoke box air flow distribution device that admits air has a plurality of water conservancy diversion through -hole. The utility model discloses simple structure can overcome the not enough of prior art, when dusty airflow passes through, can reduce the gas -flow resistance, reduces the consumption of equipment drag overall and fan.

Description

Deduster air inlet smoke box airflow distribution device
Technical field
The utility model relates to cleaner, refers to particularly that deduster air inlet smoke box air-flow divides arrangePut.
Background technology
Deduster is the capital equipment of modern industry for dedusting, and wherein electric cleaner usesOne of deduster the most widely. Electric cleaner is the corollary equipment of thermal power plant indispensability, itFunction the particle flue dust in fire coal or oil burning boiler discharge flue gas is removed, thereby largeAmplitude reduces the fume amount entering in atmosphere, to improve environmental pollution, improves air quality.The operation principle of electric cleaner is flue gas while passing through the flue before electric cleaner agent structure, makes itFlue dust is positively charged, and then flue gas enters the electric cleaner passage that multilayer cathode plate is set. Due toThe mutual suction-operated of positively charged flue dust and negative electrode electroplax, makes the particle flue dust absorption in flue gasOn negative electrode, minus plate is hit in timing, makes to have certain thickness flue dust in deadweight and vibrationDouble action drop drops in the ash bucket of electric cleaner structure below, removes in flue gas thereby reachThe object of flue dust.
Electric-bag complex dust collector combines the advantage of electric cleaner and sack cleaner, by frontA kind of high-effective dust-removing of level the gathering dust in advance of electric field, charged effect and rear class filter bag district dust removal by filtrationDevice, it gives full play to electric cleaner and sack cleaner dedusting advantage separately, and both phasesIn conjunction with producing new feature performance benefit, make up the dedusting shortcoming of electric cleaner and sack cleaner.This complex type dust remover has that efficiency is high, stable, resistance of the filter bag is low, the life-span is long, floor spaceThe advantage such as little is followingly to control that fine particle dust, PM2.5 and heavy metal Hg etc. to be pollutedThe technical way of thing associated treatment.
In electric cleaner and electric-bag complex dust collector, air-flow distribution character is deduster design and fortuneThe important parameter that row is adjusted is also the key factor that affects deduster dust-collecting efficiency. Remove according to electricityClassical effectiveness formula---the Deutsch formula of dirt device, flue gas stream distributes more even, electric precipitationThe dust removing effects of device and electric-bag complex dust collector is better.
In the time that dusty gas is flowed through the horn mouth of deduster air inlet smoke box place flaring, because of flow velocity rapidSubtract, flow to change, thus cause entering the dust-contained airflow skewness of deduster smoke box, andAnd can produce the phenomenon such as eddy current, backflow. In the prior art, normally vertical in horn mouthBe provided with one to three layer of uniform board 10 with pod apertures in airflow direction, as shown in Figure 1. LogicalCross the position that uniform board 10 distributes, the percent opening of pod apertures and the shape of perforate match,Realize being uniformly distributed of dust-contained airflow.
But, because uniform board 10 is impacts that dust-contained airflow is born in front, so to uniformPanel stiffness and requirement of strength are higher, and thus, the detailed structure of uniform board 10 requires comparatively complicated.And uniform board 10 increased the resistance of air-flow perpendicular to the design of airflow direction, thereby increaseThe drag overall of equipment, the power consumption of blower fan also therefore increase.
Summary of the invention
The purpose of this utility model will provide exactly a kind of deduster air inlet smoke box air-flow to divide and arrangePut, it is simple in structure, can overcome the deficiencies in the prior art, in the time that dust-contained airflow passes through, and canReduce the gas-flow resistance in electric cleaner and electric-bag complex dust collector, reduce equipment drag overall and windThe power consumption of machine.
For achieving the above object, the designed deduster air inlet smoke box air-flow of the utility model distributesDevice, is made up of airflow-distribution board, is arranged in the horn mouth of deduster air inlet smoke box flaring,Its special character is: described deduster air inlet smoke box airflow distribution device is bottom opening fourFace cone shape, sensing and the air flow direction on the top of described deduster air inlet smoke box airflow distribution deviceOn the contrary; On described deduster air inlet smoke box airflow distribution device, be distributed with several water conservancy diversion through holes.
Further, described water conservancy diversion through hole is strip, every water conservancy diversion through hole all with air flow directionVertically.
Further, described airflow-distribution board is triangle, described deduster air inlet smoke box gasFlow point cloth apparatus is spliced by four airflow-distribution boards.
Again further, described deduster air inlet smoke box airflow distribution device is consolidated by supporting memberIn horn mouth.
In technique scheme, in described horn mouth, be also provided with electrode.
In the utility model, by uniform with the vertically disposed multilayer of airflow direction in prior artThe deduster air inlet smoke box airflow distribution device that plate changes four sides taper into (arranges hereinafter to be referred as dividingPut). The bottom opening of described distribution apparatus, the sensing on its top is contrary with airflow direction, alsoIn other words then first the flow through top of distribution apparatus of dust-contained airflow is flowed out by the bottom of distribution apparatus.Thus, originally flowed through horn mouth porch the flow direction change dust-contained airflow flow through four sides taperDistribution apparatus after, flow to diffusion, guiding dust-contained airflow to surrounding diverging flow, make dust-ladenThe flow direction of air-flow is even, reduces impulsive force and air-flow velocity that air-flow produces, preliminary uniform air flowFlow field, has reduced the resistance of deduster air inlet smoke box. Compared with the plane uniform board of conventional design,The rigidity of the distribution apparatus of four sides taper is larger, thereby can better keep out gas in horn mouthThe impact of stream, has simplified thus the complexity of airflow-distribution board structure in distribution apparatus, thereby has subtractedLack the consumption of steel.
On distribution apparatus, be provided with several water conservancy diversion through holes, described water conservancy diversion through hole be shaped as lengthBar shaped, and all uprush directions of every water conservancy diversion through hole. The size of water conservancy diversion through hole and percent opening warpCross and calculate, be distributed on airflow-distribution board according to certain rules, thereby make dust-contained airflow flow velocityMore even. Dust-contained airflow is being flowed through after distribution apparatus by pod apertures, at four blocks of triangle gasIn the cavity of the four sides taper that flow point fabric swatch forms, air-flow velocity further declines and diffusion, thisTime, bulky grain dust at a high speed underspeeds after clashing into distribution apparatus, the bulky grain dust of low speedEasily collected and remove by deduster; Granule dust clashes into integrated large of distribution apparatus post-concentrationGrain dust, thus easily sink, collected and remove by deduster.
In the utility model, can also in horn mouth, set up electrode, make the dust in air-flowPre-electric charge, thereby the dust removing effects of raising the first electric field.
In sum, the utility model has been simplified the structure of airflow-distribution board, be easy to arrange, andAnd save material, reduced manufacturing cost; The distribution apparatus stabilized structure of four sides wimble structure,Shock resistance is good, and can guide dust-contained airflow to surrounding diverging flow, has reduced air-flowDistribution, thereby diffusion reclaim kinetic energy; By being controlled at opening of water conservancy diversion through hole on distribution apparatusThe size of porosity and water conservancy diversion through hole, thus controllable flow is through size and the side of distribution apparatus air-flowTo, make thus dust-contained airflow flow into more uniformly deduster inside, be conducive to improve dedusterEfficiency of dust collection; The utility model gas channel is smooth and easy, and flow resistance is little, can effectively reduce and removeThe resistance of dirt device air inlet smoke box, thus blower fan power consumption reduced.
Brief description of the drawings
Fig. 1 is uniform board and bell-mouthed structural representation in prior art.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is that the A of airflow-distribution board in Fig. 2 is to schematic diagram.
In figure: airflow-distribution board 1, water conservancy diversion through hole 2, supporting member 3, horn mouth 4, electrode5, uniform board 10.
Detailed description of the invention
Describe performance of the present utility model in detail below in conjunction with accompanying drawing, but that it does not form is rightRestriction of the present utility model, only does for example. Simultaneously by explanation, of the present utility model excellentName a person for a particular job and become more clear and easily understand.
The horn mouth 4 of prior art and the structural representation of uniform board 10 as shown in Figure 1,Do detailed introduction in background technology, repeated no more in this.
As shown in Figures 2 and 3, air flow direction with A to consistent, at deduster air inlet smoke box placeIn the horn mouth 4 of flaring, be provided with deduster air inlet smoke box airflow distribution device, described point arrangesPut by supporting member 3 and be fixedly connected with horn mouth 4.
Described distribution apparatus is the four sides taper of bottom opening, has four blocks of leg-of-mutton air-flows to distributePlate 1 is spliced, and distribution apparatus forms internal cavities thus. Loudspeaker is pointed on the top of distribution apparatusThe porch of mouth 2, contrary with air flow direction. On every airflow-distribution board 1, press certainRule is distributed with several water conservancy diversion through holes 2. Described water conservancy diversion through hole 2 is strip, every water conservancy diversionThrough hole 2 is vertical with air flow direction.
In horn mouth 4, also can set up electrode 5. Dust-contained airflow by A to flowing into deduster air inletIn the horn mouth 4 of smoke box import department flaring, what prime minister flowed through is the top of distribution apparatus, due toDistribution apparatus is the structure of four sides cone, and is covered with water conservancy diversion through hole 2, so the stream of dust-contained airflowTo diffusion. Air-flow flows into distribution apparatus by the water conservancy diversion through hole 2 being distributed on airflow-distribution board 1In internal cavities, the bulky grain dust of dust-contained airflow high speed clashes into the rear reduction of airflow-distribution board 1Flow velocity, and by electrode 5 charged; In dust-contained airflow, the granule dust of low speed is clashing intoThe integrated bulky grain dust of airflow-distribution board 1 post-concentration, and charged by electrode 5. TherebyAir-flow in horn mouth 4 is electrically charged in advance, thereby improves the dust removing effects of the first electric field.
All the other do not describe part in detail for prior art.

Claims (7)

1. a deduster air inlet smoke box airflow distribution device, is made up of airflow-distribution board (1),Be arranged in the horn mouth (4) of deduster air inlet smoke box flaring, it is characterized in that: described removingThe four sides taper that dirt device air inlet smoke box airflow distribution device is bottom opening, described deduster air inletThe sensing on the top of smoke box airflow distribution device is contrary with air flow direction; Described deduster air inlet cigaretteOn case airflow distribution device, be distributed with several water conservancy diversion through holes (2).
2. deduster air inlet smoke box airflow distribution device according to claim 1, its spyLevy and be: described water conservancy diversion through hole (2) is strip, every water conservancy diversion through hole (2) all with air-flowFlow to vertical.
3. deduster air inlet smoke box airflow distribution device according to claim 1 and 2,It is characterized in that: described airflow-distribution board (1) is triangle, described deduster air inlet smoke boxAirflow distribution device is spliced by four airflow-distribution boards (1).
4. deduster air inlet smoke box airflow distribution device according to claim 1 and 2,It is characterized in that: described deduster air inlet smoke box airflow distribution device is by supporting member (3)Be fixed in horn mouth (4).
5. deduster air inlet smoke box airflow distribution device according to claim 3, its spyLevy and be: described deduster air inlet smoke box airflow distribution device is fixing by supporting member (3)In horn mouth (4).
6. divide according to the deduster air inlet smoke box air-flow described in any one in claim 1 or 2Cloth apparatus, is characterized in that: in described horn mouth (4), be also provided with electrode (5).
7. divide and arrange according to the deduster air inlet smoke box air-flow described in any one in claim 5Put, it is characterized in that: in described horn mouth (4), be also provided with electrode (5).
CN201521083168.XU 2015-12-22 2015-12-22 Dust remover smoke box air flow distribution device that admits air Active CN205288692U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521083168.XU CN205288692U (en) 2015-12-22 2015-12-22 Dust remover smoke box air flow distribution device that admits air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201521083168.XU CN205288692U (en) 2015-12-22 2015-12-22 Dust remover smoke box air flow distribution device that admits air

Publications (1)

Publication Number Publication Date
CN205288692U true CN205288692U (en) 2016-06-08

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107042046A (en) * 2017-02-09 2017-08-15 河北宏达环境工程有限公司 A kind of airflow distribution device of electrostatic fabric filter
CN112981034A (en) * 2021-02-09 2021-06-18 鞍钢股份有限公司 Method for improving dust removal efficiency of converter electrostatic dust remover

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107042046A (en) * 2017-02-09 2017-08-15 河北宏达环境工程有限公司 A kind of airflow distribution device of electrostatic fabric filter
CN107042046B (en) * 2017-02-09 2024-04-05 河北宏达环境工程有限公司 Air flow distribution device of electric bag dust collector
CN112981034A (en) * 2021-02-09 2021-06-18 鞍钢股份有限公司 Method for improving dust removal efficiency of converter electrostatic dust remover

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