CN102553720A - Dual flow velocity high-efficiency electrostatic dust collector - Google Patents

Dual flow velocity high-efficiency electrostatic dust collector Download PDF

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Publication number
CN102553720A
CN102553720A CN2011104587533A CN201110458753A CN102553720A CN 102553720 A CN102553720 A CN 102553720A CN 2011104587533 A CN2011104587533 A CN 2011104587533A CN 201110458753 A CN201110458753 A CN 201110458753A CN 102553720 A CN102553720 A CN 102553720A
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CN
China
Prior art keywords
electric field
millimeters
back level
electrostatic dust
stage electric
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Granted
Application number
CN2011104587533A
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Chinese (zh)
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CN102553720B (en
Inventor
丘佳锐
王艳媛
李良芳
李其昌
郭勇
苏可美
章潮鸿
李瑰萍
郑东梅
黄俊连
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XIAMEN GONGYUAN ENVIRONMENTAL SCIENCE AND TECHNOLOGY CO., LTD.
Original Assignee
FUJIAN DONGYUAN ENVIRONMENTAL PROTECTION EQUIPMENT Co Ltd
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Application filed by FUJIAN DONGYUAN ENVIRONMENTAL PROTECTION EQUIPMENT Co Ltd filed Critical FUJIAN DONGYUAN ENVIRONMENTAL PROTECTION EQUIPMENT Co Ltd
Priority to CN201110458753.3A priority Critical patent/CN102553720B/en
Publication of CN102553720A publication Critical patent/CN102553720A/en
Application granted granted Critical
Publication of CN102553720B publication Critical patent/CN102553720B/en
Expired - Fee Related legal-status Critical Current
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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

The fast high-efficiency electrostatic dust remover of double fluid
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 electric field pole plate arranged direction difference, the electrostatic precipitator that flue gas flow rate is different.
Prior art
Present Industrial Stoves clarifying smoke all is that electric field pole plate direction is arranged as horizontal structure before and after adopting 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 were confirmed, high more through the flue gas flow rate of electric field, efficiency of dust collection was just low more.Mainly contain following reason:
1, flue gas flow rate is bigger, and ash-laden gas is short more through the time of electric field, and some dust also has little time fully charged, and has little time to arrive pole plate, is just taken out of electric cleaner under the wind flow effect, and the gathered dust probability of collecting collection of dust reduces.
2, the space beyond the 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,, will be increased by the escape dust of carried away by air movement because flue gas flow rate is excessive.
3, received that dust on the electrode when rapping, falls in the ash bucket of bottom, but, in the decline process, be easy to by carried away by air movement because flue gas flow rate is excessive.When both making not rapping, high velocity air still can wash away takes away the dust of receiving on the 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, all be the deduster of horizontal arrangement for traditional plate plate direction, under same electrical field length situation; Must strengthen the flow area of dust-contained airflow, can cause electric cleaner bulky like this, cost is high.
Summary of the invention
The objective 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 in the electric field obviously slows down flue gas in the back, more carefully is difficult for the problem that captures thereby solve electric field dust behind the present electric cleaner; Improve the dust-collecting efficiency of electric cleaner, reduce dust emission concentration.
For realizing above-mentioned purpose, the present invention adopts following technical scheme:
The fast high-efficiency electrostatic dust remover of double fluid comprises the housing that is provided with air inlet smoke box, current equalizer, in housing, is provided with prime electric field, back level electric field; The pole plate horizontal arrangement of said prime electric field, the pole plate of back level electric field are vertically arranged, are provided with the water conservancy diversion current equalizer between prime electric field and the back level electric field; The width of back level electric field is not less than the width of prime electric field; In the level electric field of back, flue gas is by two wing passage air intakes, middle air-out; Back level electric field air inlet flue is designed to front wide and rear narrow, and outlet passageway is designed to beloid.
The die opening of said prime electric field is 400 millimeters~450 millimeters, and back level electric field pole spacing is 300 millimeters~350 millimeters.
As preferably, said prime electric field pole spacing is got 400 millimeters, and a back level electric field pole spacing is got 300 millimeters.
Said current equalizer is a perforated plate construction, and the diameter in hole is 50 millimeters~100 millimeters.
As preferably, the bore dia of said current equalizer is got 85 millimeters.
Said water conservancy diversion current equalizer is a perforated plate construction, and the diameter in hole is 50~100 millimeters.
As preferably, the bore dia of said water conservancy diversion current equalizer is got 50 millimeters.
The anode rapping apparatus of said back level electric field is located at the outside of housing, and the rapping moving component is isolated from outside the flue dust, and like this, moving component is not influenced by dust and produces wearing and tearing, prolongs service life, and can realize the vibration body on-bne repair.
Because the plate designs of prime electric field of the present invention becomes horizontal direction to arrange; The plate designs of back level electric field becomes vertical direction to arrange; Between the level electric field of front and back, be provided with the water conservancy diversion current equalizer, when flue gas when a level electric field air inlet flue gets into back level electric field along the back through the water conservancy diversion current equalizer from the prime electric field, because the width W 1 of back level electric field is not less than the width W 2 of prime electric field; This moment, the electric field actual internal area enlarged markedly; Make airflow velocity ratio prime electric field reduce significantly that (a back level electric field flue gas flow rate can reduce to 0.3~0.4m/s), makes back electric field fine solid particle can obtain minimum filtration velocity (being wind-force), improves the probability that dust is captured by dust collector pole; Simultaneously, after back level electric field air velocity was fallen, air-flow was redistributed; Trickle charged dust is extrusion and collision again, the electrocoagulation effect occurs, makes trickle charged dust there is a natural attraction between the sexes back particle diameter chap; Obtain bigger migration velocity (being the Coulomb force); Wind significantly reduces and the increase of electric field Coulomb force like this, and reentrainment of dust reduces, thereby improves efficiency of dust collection; In back level electric field, flue gas is by two wing passage air intakes, middle air-out, a back level electric field air inlet flue is designed to front wide and rear narrow, outlet passageway is designed to beloid, can guarantee like this flue gas in the back the inner flow velocity of level electric field even, can not produce turbulent phenomenon.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described further.
Fig. 1 is the double-current fast high-efficiency electrostatic dust remover structural representation that proposes according to the present invention.
Each sign expression among the figure:
1, air inlet smoke box; 2, current equalizer; 3, housing; 4, prime electric field; 5, water conservancy diversion current equalizer; 6, back level electric field; 7, anode rapping apparatus; 8, back level electric field air inlet flue; 9, outlet passageway.
W1 is the width of prime electric field among the figure, and W2 is the width of back level electric field.
The specific embodiment
As shown in Figure 1, the fast high-efficiency electrostatic dust remover of the present invention's double fluid comprises the housing 3 that is provided with air inlet smoke box 1, current equalizer 2, in housing 3, is provided with flow of flue gas direction difference prime electric field 4, back level electric field 6; The pole plate horizontal arrangement of prime electric field 4, the pole plate of back level electric field 6 are vertically arranged, are provided with water conservancy diversion current equalizer 5 between prime electric field 4 and the back level electric field 6; The width W 2 of back level electric field 6 is not less than the width W 1 of prime electric field 4, and in the level electric field 6 of back, flue gas is by two wing passage air intakes; Middle air-out; Back level electric field air inlet flue 8 is designed to front wide and rear narrow, and outlet passageway 9 is designed to beloid, makes flue gas inner flow velocity in the level electric field of back even.
The die opening of said prime electric field 4 is got 400 millimeters~450 millimeters, as preferably, gets 400 millimeters; Back level electric field 6 die openings are got 300 millimeters~350 millimeters, as preferably, get 300 millimeters.
Said current equalizer 2 is a 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 the porous plate.
Said water conservancy diversion current equalizer 5 is a perforated plate construction, and the diameter in hole is 50~100 millimeters, and the best is got 50 millimeters.
The anode rapping apparatus 7 of said back level electric field 6 is located at the outside of housing 3, and the rapping moving component is isolated from outside the flue dust, and moving component is not influenced by dust and produces 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 following: after ash-laden gas gets into air inlet smoke box 1; Through the current-sharing of current equalizer 2, dust evenly gets in the prime electric field 4 charged, and dust is by charged and become charged dust; Charged dust is under the effect of electric field force; Most of collected cleaning, continue to move ahead that a level electric field air inlet flue 8 gets into back level electric fields 6 along the back through water conservancy diversion current equalizer 5 through the flue gas of first order dedusting, because the width W 2 of back level electric field 6 is not less than the width W 1 of prime electric field 4 by prime electric field 4; This moment, the electric field actual internal area enlarged markedly; Airflow velocity ratio prime electric field significantly reduces, and makes back electric field fine solid particle can obtain minimum filtration velocity (being wind-force), improves the probability that dust is captured by dust collector pole; In the level electric field of back, flue gas is by two wing passage air intakes, middle air-out in addition; Back level electric field air inlet flue is designed to 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 back level electric field, can not produce turbulent flow, bias current phenomenon; In addition; Electric field makes charged fine solid particle there is a natural attraction between the sexes through the electrocoagulation effect and back particle diameter chap obtains bigger migration velocity (being the electric field Coulomb force) in the back, and wind significantly reduces and the increase of electric field Coulomb force like this; Reentrainment of dust reduces; Dust arrives pole plate under the effect of simple Coulomb force distance and time shorten, and most of dust is collected by back level electric field 6, and clean flue gas is discharged through the flue 9 of giving vent to anger.
The present invention reduces flow direction and the flowing velocity of flue gas in electric field through changing the internal structure of electric field, reaches the purpose that under the situation of outfit of equipment size constancy, improves its efficiency of dust collection.

Claims (8)

1. double-current fast high-efficiency electrostatic dust remover; 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], back level electric field [6], it is characterized in that; The pole plate horizontal arrangement of prime electric field [4], the pole plate of back level electric field [6] is vertically arranged; Be provided with water conservancy diversion current equalizer [5] between prime electric field [4] and the back level electric field [6]; The width of back level electric field [6] is not less than the width of prime electric field [4]; In back level electric field [6], flue gas is by two wing passage air intakes, middle air-out, and a back level electric field air inlet flue [8] is designed to front wide and rear narrow, and outlet passageway [9] is designed to beloid.
2. the fast high-efficiency electrostatic dust remover of double fluid as claimed in claim 1, the die opening that it is characterized in that said prime electric field [4] are 400 millimeters~450 millimeters, and back level electric field [6] die opening is 300 millimeters~350 millimeters.
3. like claim 1 or the fast high-efficiency electrostatic dust remover of the described double fluid of claim 2, the die opening that it is characterized in that said prime electric field [4] is 400 millimeters, and back level electric field [6] die opening is 300 millimeters.
4. the fast high-efficiency electrostatic dust remover of double fluid as claimed in claim 1 is characterized in that said current equalizer [2] is a perforated plate construction, and the diameter in hole is 50 millimeters~100 millimeters.
5. the fast high-efficiency electrostatic dust remover of double fluid as claimed in claim 4, the diameter that it is characterized in that said hole is 85 millimeters.
6. the fast high-efficiency electrostatic dust remover of double fluid as claimed in claim 1 is characterized in that said water conservancy diversion current equalizer [5] is a perforated plate construction, and the diameter in hole is 50~100 millimeters.
7. the fast high-efficiency electrostatic dust remover of double fluid as claimed in claim 6, the diameter that it is characterized in that said hole is 50 millimeters.
8. the fast high-efficiency electrostatic dust remover of double fluid as claimed in claim 1 is characterized in that the anode rapping apparatus [7] of said back level electric field [6] is located at the outside of housing [3], and the rapping moving component is isolated from outside the flue dust.
CN201110458753.3A 2011-12-31 2011-12-31 Dual flow velocity high-efficiency electrostatic dust collector Expired - Fee Related CN102553720B (en)

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CN102553720B CN102553720B (en) 2014-02-05

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103586133A (en) * 2013-12-02 2014-02-19 江苏力洁达环保设备工程有限公司 Differential wet electric precipitator
CN103934104A (en) * 2014-05-13 2014-07-23 任利萍 Flat plate type dust collector

Citations (4)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103586133A (en) * 2013-12-02 2014-02-19 江苏力洁达环保设备工程有限公司 Differential wet electric precipitator
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
CN103934104A (en) * 2014-05-13 2014-07-23 任利萍 Flat plate type dust collector

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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

CF01 Termination of patent right due to non-payment of annual fee