CN102553720B - Dual flow velocity high-efficiency electrostatic dust collector - Google Patents
Dual flow velocity high-efficiency electrostatic dust collector Download PDFInfo
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- CN102553720B CN102553720B CN201110458753.3A CN201110458753A CN102553720B CN 102553720 B CN102553720 B CN 102553720B CN 201110458753 A CN201110458753 A CN 201110458753A CN 102553720 B CN102553720 B CN 102553720B
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- flow velocity
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- dust collector
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Abstract
The invention discloses a dual flow velocity high-efficiency electrostatic dust collector, relates to a dust collection device for treating atmospheric dust pollution, and solves the problem of low dust collection efficiency of high flow velocity smoke after determination of flow area and electric field length of a line board type electric dust collector existing in the prior art. The dual flow velocity high-efficiency electrostatic dust collector comprises a shell with an intake smoke box and a flow equalizing device, wherein a front-stage electric field and a rear-stage electric field are arranged in the shell; a polar plate of the front-stage electric field is horizontally arranged; a polar plate of the rear-stage electric field is vertically arranged; a flow guide and equalizing device is arranged between the front-stage electric field and the rear-stage electric field; the width of the rear-stage electric field is not less than that of the front-stage electric field; in the rear-stage electric field, smoke is in-taken from passages on the two sides and out-taken in the middle; an intake smoke passage of the rear-stage electric field is designed to be wide on the front part and narrow on the rear part; and the out-take passage is designed to be narrow on the front part and wide on the rear part. By changing the internal structure of the electric field, the low direction and the flow velocity of smoke in the electric field are reduced, so that the aim of increasing the dust collection efficiency of the dust collector under the condition of unchanged overall size of equipment is fulfilled.
Description
Technical field
The present invention relates to a kind of dust arrester of administering atmospheric dust pollution, be specifically related to a kind of front and back Electrode arranged direction difference, the electrostatic precipitator that flue gas flow rate is different.
Prior art
Current Industrial Stoves clarifying smoke is all that before and after adopting, Electrode direction is arranged as horizontal structure with electric cleaner, and the flow velocity of flue gas in the electric field of front and back is impartial.After the flow area of electric cleaner and electric field length are determined, higher by the flue gas flow rate of electric field, efficiency of dust collection is just lower.Mainly contain following reason:
1, flue gas flow rate is larger, and the time of ash-laden gas by electric field is shorter, and some dust also has little time fully charged, and has little time to arrive pole plate, just under wind flow effect, is taken out of electric cleaner, and the gathered dust probability of collecting collection of dust reduces.
2, the space beyond effective electric field, such as: in the space of the ash bucket of bottom, the interval on top and both sides pole plate and shell, because flue gas flow rate is excessive, the escape dust of being taken away by air-flow will increase.
3, received that dust on electrode, when rapping, falls in the ash bucket of bottom, but because flue gas flow rate is excessive, in decline process, be easy to be taken away by air-flow.While both making not rapping, high velocity air still can wash away takes away the dust of receiving on dust collector pole, strengthens the secondary fly-up of dust.
Therefore, improve efficiency of dust collection, reduce smoke dust discharge concentration, must reduce flue gas flow rate, be all horizontally disposed deduster for traditional plate plate direction, in same electrical field length situation, the flow area that must strengthen dust-contained airflow, can cause electric cleaner bulky like this, and cost is high.
Summary of the invention
The object of the invention is to solve the problem that prior art exists, a kind of high-efficiency electrostatic dust remover of new structure is provided, in this electrostatic precipitator, the flow velocity of flue gas in rear electric field obviously slows down, thereby after solving current electric cleaner, electric field dust is more carefully difficult for the problem of trapping, improve the dust-collecting efficiency of electric cleaner, reduce dust emission concentration.
For achieving the above object, the present invention adopts following technical scheme:
Dual flow velocity high-efficiency electrostatic dust collector, comprise the housing that is provided with air inlet smoke box, current equalizer, in housing, be provided with prime electric field, rear class electric field, the pole plate of described prime electric field is horizontally disposed, the pole plate of rear class electric field is arranged vertically, between prime electric field and rear class electric field, be provided with water conservancy diversion current equalizer, the width of rear class electric field is not less than the width of prime electric field, in rear class electric field, flue gas is by two wing passage air intakes, middle air-out, rear class electric field air inlet Flue duct design becomes front wide and rear narrow, and outlet passageway is designed to beloid.
The die opening of described prime electric field is 400 millimeters～450 millimeters, and rear class electric field pole spacing is 300 millimeters～350 millimeters.
As preferably, described prime electric field pole spacing is got 400 millimeters, and rear class electric field pole spacing is got 300 millimeters.
Described current equalizer is perforated plate construction, and the diameter in hole is 50 millimeters～100 millimeters.
As preferably, the bore dia of described current equalizer is got 85 millimeters.
Described water conservancy diversion current equalizer is perforated plate construction, and the diameter in hole is 50～100 millimeters.
As preferably, the bore dia of described water conservancy diversion current equalizer is got 50 millimeters.
The cathode vibrator of described rear class electric field is located at the outside of housing, and rapping moving component is isolated from outside flue dust, and like this, moving component is not affected by dust and produces wearing and tearing, extends service life, and can realize vibration body on-bne repair.
Because becoming horizontal direction, the plate designs of prime electric field of the present invention arranges, the plate designs of rear class electric field becomes vertical direction to arrange, between the level electric field of front and back, be provided with water conservancy diversion current equalizer, when flue gas enters rear class electric field through water conservancy diversion current equalizer along rear class electric field air inlet flue from prime electric field, because the width W 1 of rear class electric field is not less than the width W 2 of prime electric field, now electric field actual internal area enlarges markedly, make airflow velocity ratio prime electric field significantly reduce (rear class electric field flue speed can be down to 0.3～0.4m/s), make rear electric field fine solid particle can obtain minimum filtration velocity (being wind-force), improve the probability that dust is trapped by dust collector pole, simultaneously, after rear class electric field air velocity is fallen, air-flow is redistributed, trickle charged dust is extrusion and collision again, occurs electrocoagulation effect, particle diameter chap after making trickle Charged there is a natural attraction between the sexes, obtain larger migration velocity (being Coulomb force), wind-force effect significantly reduces and the increase of electric field Coulomb force like this, and reentrainment of dust reduces, thereby improves efficiency of dust collection, in rear class electric field, flue gas is by two wing passage air intakes, middle air-out, and rear class electric field air inlet Flue duct design becomes front wide and rear narrow, and outlet passageway is designed to beloid, can guarantee that like this flue gas is even at the inner flow velocity of rear class electric field, can not produce turbulent phenomenon.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is the Dual flow velocity high-efficiency electrostatic dust collector structural representation proposing according to the present invention.
In figure, each sign represents:
1, air inlet smoke box; 2, current equalizer; 3, housing; 4, prime electric field; 5, water conservancy diversion current equalizer; 6, rear class electric field; 7, cathode vibrator; 8, rear class electric field air inlet flue; 9, outlet passageway.
In figure, W1 is the width of prime electric field, and W2 is the width of rear class electric field.
The specific embodiment
As shown in Figure 1, Dual flow velocity high-efficiency electrostatic dust collector of the present invention comprises and is provided with air inlet smoke box 1, the housing 3 of current equalizer 2, in housing 3, be provided with the different prime electric fields 4 of flow of flue gas direction, rear class electric field 6, the pole plate of prime electric field 4 is horizontally disposed, the pole plate of rear class electric field 6 is arranged vertically, between prime electric field 4 and rear class electric field 6, be provided with water conservancy diversion current equalizer 5, the width W 2 of rear class electric field 6 is not less than the width W 1 of prime electric field 4, in rear class electric field 6, flue gas is by two wing passage air intakes, middle air-out, rear class electric field air inlet flue 8 is designed to front wide and rear narrow, outlet passageway 9 is designed to beloid, make flue gas inner flow velocity in rear class electric field even.
The die opening of described prime electric field 4 is got 400 millimeters～450 millimeters, as preferably, gets 400 millimeters; Rear class electric field 6 die openings are got 300 millimeters～350 millimeters, as preferably, get 300 millimeters.
Described current equalizer 2 is perforated plate construction, and the diameter in hole is 50 millimeters～100 millimeters, and the best is got 85 millimeters, is designed with guide vane on porous plate.
Described water conservancy diversion current equalizer 5 is perforated plate construction, and the diameter in hole is 50～100 millimeters, and the best is got 50 millimeters.
The cathode vibrator 7 of described rear class electric field 6 is located at the outside of housing 3, and rapping moving component is isolated from outside flue dust, and moving component is not subject to dust affect and produce wearing and tearing, and long service life can realize the on-bne repair of vibration body.
The course of work of the present invention is as follows: ash-laden gas enters after air inlet smoke box 1, current-sharing through current equalizer 2, it is interior charged that dust evenly enters prime electric field 4, dust is by charged and become Charged, Charged is under the effect of electric field force, most of by the 4 collection cleanings of prime electric field, the flue gas of process first order dedusting continues to move ahead and along rear class electric field air inlet flue 8, enters rear class electric field 6 through water conservancy diversion current equalizer 5, because the width W 2 of rear class electric field 6 is not less than the width W 1 of prime electric field 4, now electric field actual internal area enlarges markedly, airflow velocity ratio prime electric field significantly reduces, make rear electric field fine solid particle can obtain minimum filtration velocity (being wind-force), improve the probability that dust is trapped by dust collector pole, in rear class electric field, flue gas is by two wing passage air intakes, middle air-out in addition, rear class electric field air inlet Flue duct design becomes front wide and rear narrow, outlet passageway is designed to beloid, can guarantee that like this flue gas is even at the inner flow velocity of rear class electric field, can not produce turbulent flow, Biased flow phenomenon, in addition, particle diameter chap after making charged fine solid particle at rear electric field by electrocoagulation effect there is a natural attraction between the sexes, obtain larger migration velocity (being electric field Coulomb force), wind-force effect significantly reduces and the increase of electric field Coulomb force like this, reentrainment of dust reduces, dust arrives distance and the time shorten of pole plate under the effect of simple Coulomb force, and most of dust is collected by rear class electric field 6, and clean flue gas is discharged through the flue 9 of giving vent to anger.
The present invention, by changing the internal structure of electric field, reduces flow direction and the flowing velocity of flue gas in electric field, reaches the object that improves its efficiency of dust collection in the situation that of outfit of equipment size constancy.
Claims (8)
1. Dual flow velocity high-efficiency electrostatic dust collector, comprise the housing [3] that is provided with air inlet smoke box [1], current equalizer [2], in housing [3], be provided with prime electric field [4], rear class electric field [6], it is characterized in that, the pole plate of prime electric field [4] is horizontally disposed, and the pole plate of rear class electric field [6] is arranged vertically; Between prime electric field [4] and rear class electric field [6], be provided with water conservancy diversion current equalizer [5]; The width of rear class electric field [6] is not less than the width of prime electric field [4]; In rear class electric field [6], flue gas is by two wing passage air intakes, middle air-out, and rear class electric field air inlet flue [8] is designed to front wide and rear narrow, and outlet passageway [9] is designed to beloid.
2. Dual flow velocity high-efficiency electrostatic dust collector as claimed in claim 1, the die opening that it is characterized in that described prime electric field [4] is 400 millimeters～450 millimeters, rear class electric field [6] die opening is 300 millimeters～350 millimeters.
3. as claim 1 or Dual flow velocity high-efficiency electrostatic dust collector claimed in claim 2, the die opening that it is characterized in that described prime electric field [4] is 400 millimeters, and rear class electric field [6] die opening is 300 millimeters.
4. Dual flow velocity high-efficiency electrostatic dust collector as claimed in claim 1, is characterized in that described current equalizer [2] is perforated plate construction, and the diameter in hole is 50 millimeters～100 millimeters.
5. Dual flow velocity high-efficiency electrostatic dust collector as claimed in claim 4, the diameter that it is characterized in that described hole is 85 millimeters.
6. Dual flow velocity high-efficiency electrostatic dust collector as claimed in claim 1, is characterized in that described water conservancy diversion current equalizer [5] is perforated plate construction, and the diameter in hole is 50～100 millimeters.
7. Dual flow velocity high-efficiency electrostatic dust collector as claimed in claim 6, the diameter that it is characterized in that described hole is 50 millimeters.
8. Dual flow velocity high-efficiency electrostatic dust collector as claimed in claim 1, is characterized in that the cathode vibrator [7] of described rear class electric field [6] is located at the outside of housing [3], and rapping moving component is isolated from outside flue dust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110458753.3A CN102553720B (en) | 2011-12-31 | 2011-12-31 | Dual flow velocity high-efficiency electrostatic dust collector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110458753.3A CN102553720B (en) | 2011-12-31 | 2011-12-31 | Dual flow velocity high-efficiency electrostatic dust collector |
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| Publication Number | Publication Date |
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| CN102553720A CN102553720A (en) | 2012-07-11 |
| CN102553720B true CN102553720B (en) | 2014-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110458753.3A Expired - Fee Related CN102553720B (en) | 2011-12-31 | 2011-12-31 | Dual flow velocity high-efficiency electrostatic dust collector |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103586133B (en) * | 2013-12-02 | 2016-03-30 | 江苏力洁达环保设备工程有限公司 | A kind of differential wet electric precipitator |
| CN103934104B (en) * | 2014-05-13 | 2016-04-20 | 任利萍 | Flat deduster |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5282891A (en) * | 1992-05-01 | 1994-02-01 | Ada Technologies, Inc. | Hot-side, single-stage electrostatic precipitator having reduced back corona discharge |
| CN2654221Y (en) * | 2003-06-25 | 2004-11-10 | 冯志军 | Electrostatic method oil fume purifier |
| CN2770787Y (en) * | 2004-11-29 | 2006-04-12 | 张辛石 | Double-charge transverse collecting polar plate dust filter |
| CN202387558U (en) * | 2011-12-31 | 2012-08-22 | 福建东源环保有限公司 | Dual flow velocity high-efficiency electrostatic precipitator |
-
2011
- 2011-12-31 CN CN201110458753.3A patent/CN102553720B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5282891A (en) * | 1992-05-01 | 1994-02-01 | Ada Technologies, Inc. | Hot-side, single-stage electrostatic precipitator having reduced back corona discharge |
| CN2654221Y (en) * | 2003-06-25 | 2004-11-10 | 冯志军 | Electrostatic method oil fume purifier |
| CN2770787Y (en) * | 2004-11-29 | 2006-04-12 | 张辛石 | Double-charge transverse collecting polar plate dust filter |
| CN202387558U (en) * | 2011-12-31 | 2012-08-22 | 福建东源环保有限公司 | Dual flow velocity high-efficiency electrostatic precipitator |
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| CN102553720A (en) | 2012-07-11 |
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Effective date of registration: 20161125 Address after: 361000 Fujian torch Park Park hi tech Zone, the real estate industry park, room building, room 609 Patentee after: XIAMEN GONGYUAN ENVIRONMENTAL SCIENCE AND TECHNOLOGY CO., LTD. Address before: 364000 Longyan Economic Development Zone, Xinluo District, Fujian, Longyan Patentee before: Fujian Dongyuan Environmental Protection Equipment Co., Ltd. |
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Granted publication date: 20140205 Termination date: 20201231 |