CN102198426B - Multiple combined apparatus for air flow distribution board of electrostatic precipitator - Google Patents
Multiple combined apparatus for air flow distribution board of electrostatic precipitator Download PDFInfo
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- CN102198426B CN102198426B CN 201110081448 CN201110081448A CN102198426B CN 102198426 B CN102198426 B CN 102198426B CN 201110081448 CN201110081448 CN 201110081448 CN 201110081448 A CN201110081448 A CN 201110081448A CN 102198426 B CN102198426 B CN 102198426B
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Abstract
The invention discloses a multiple combined apparatus for an air flow distribution board of an electrostatic precipitator. The multiple combined apparatus comprises a housing body, wherein an inlet funnel is provided on one side of the housing body. A first electric field area, a second electric field area, and ash hoppers corresponding to the first electric field area and the second electric field area, are provided in the housing body. A first air flow distribution board is suspended on the intermediate position of the inlet funnel in the housing body; a second air flow distribution board is suspended on a connecting position of the inlet funnel and the housing body; a third air flow distribution board is suspended on a position between the first electric field area and the second electric field area. The apparatus provided by the present invention has advantages of simple structure, reliable operation, low cost, and long service life.
Description
Technical field:
The present invention relates generally to a kind of electric cleaner airflow-distribution board device, relates in particular to a kind of multiple-combination device for airflow distribution plates of electrostatic precipitator.
Background technique:
The electric cleaner smoke gas flow need be asked flow speed stability, distributes rationally, moving direction all is tending towards vertical with the electric field main cross section, so just is conducive to improve the online probability of charged grit, assurance electric cleaner high-effective dust-removing.And its motion state is disorderly before advancing electric cleaner, therefore must set up a device in electric cleaner inlet and give the air-flow distribution, to realize above-mentioned purpose.Current electric cleaner smoke gas flow distribution apparatus also exists a lot of deficiencies, is mainly air-flow distributivity problem.Along with the raising day by day of national standard limit of smog release, along with the electric cleaner scale and application area increasing, the impact of this respect problem also begins to become more and more to have protruded.Electric cleaner airflow-distribution board device is all in the air inlet loudspeaker at present, all arrange maximum two-layer airflow-distribution boards, and do not arrange in electric field, can't feed back the variation of smoke gas flow in electric field, the distribution grid percent opening seldom changes again, be difficult to satisfy the requirement of reasonableness of its distribution, therefore cause distributing undesirable.All exist the difference of smoke gas flow physics and chemistry characteristic due to every electric cleaner, as the inlet/outlet dust concentration, flue dust grit diffusance, flue dust humidity, temperature, chemical composition etc.; Smoke gas flow is subjected to the impact of air inlet loudspeaker inwall resistance and the abrupt change of cross-section of entrance size; Electric field net sectional area, field gas velocity that Design of Electrostatic Precipitator is selected, and the cathode and anode configuration and dispatching etc.These factors all can the direct interference smoke gas flow distributivity, thereby cause " eddy current ", " jet " in electric field, " dead angle " and the generation such as " reentrainment of dust " phenomenon, as effectively not adjusting, will make distributivity become very poor, result is that dust collection efficiency descends.
Summary of the invention:
The object of the invention is exactly in order to make up the defective of prior art, a kind of multiple-combination device for airflow distribution plates of electrostatic precipitator to be provided, it have advantages of simple in structure, reliable, cost is low and long service life.
The present invention is achieved by the following technical solutions:
A kind of multiple-combination device for airflow distribution plates of electrostatic precipitator, include housing, housing one side is provided with the air inlet loudspeaker, be provided with an electric field region, two electric field regions and the ash bucket corresponding with an electric field region and two electric field regions in housing, it is characterized in that: the position that is positioned in housing in the middle of the air inlet loudspeaker is hung with airflow-distribution board one, be positioned at the position that the air inlet loudspeaker are connected with housing in housing and be hung with airflow-distribution board two, the position in housing between an electric field region and two electric field regions is hung with airflow-distribution board three.
Described a kind of multiple-combination device for airflow distribution plates of electrostatic precipitator, it is characterized in that: described airflow-distribution board one, airflow-distribution board two and airflow-distribution board three are arranged sequentially according to combination percent opening separately respectively, and satisfy the requirement that the relative root-mean-square value of the interior air-flow distribution of electric field all is less than or equal to GB.
Described a kind of multiple-combination device for airflow distribution plates of electrostatic precipitator, it is characterized in that: be fixed with the electromagnetic pulse rapping apparatus in described housing, the output terminal of electromagnetic pulse rapping apparatus is connected with force transmission mechanism, and force transmission mechanism is connected respectively on airflow-distribution board one and airflow-distribution board two.
Described a kind of multiple-combination device for airflow distribution plates of electrostatic precipitator is characterized in that: be provided with cathode vibrator in a described electric field region, the dowel bar of cathode vibrator is connected on airflow-distribution board three.
Described a kind of multiple-combination device for airflow distribution plates of electrostatic precipitator is characterized in that: described air inlet loudspeaker are horizontal air inlet loudspeaker or upper air loudspeaker.
Described airflow-distribution board one is hung in the middle part of the air inlet loudspeaker; Airflow-distribution board two is hung on air inlet loudspeaker and housing joint; Airflow-distribution board three is hung between an electric field region and two electric field regions, and certain interval is all left with air inlet loudspeaker or electric field bottom in each airflow-distribution board bottom.The electromagnetic pulse rapping apparatus is positioned between airflow-distribution board one and airflow-distribution board two, and fixing on housing.
The present invention adopts multiple combination type airflow-distribution board technology exclusive in the electric cleaner air-flow path, namely in electric cleaner on the smoke gas flow direction, comprise between air inlet loudspeaker and, two electric fields, satisfying under the pressure reduction condition, arrange the most nearly three layers of airflow-distribution boards; Every layer of percent opening according to certain rules is arranged sequentially, and has the some different minimum unit distribution grids of percent opening to combine, and percent opening determines by the distribution grid percent opening that forms minimum unit.
Multiple-combination device for airflow distribution plates of electrostatic precipitator function mode of the present invention is as follows:
At first smoke gas flow enters in electric cleaner by upper air (or horizontal air inlet) air inlet loudspeaker entrance, before not reaching this device, is subject to the impact of various disturbing factors, and it is extremely disorderly that its motion state seems.Diffusion in the air inlet loudspeaker is with mobile, and this air-flow has passed through the distribution for the first time of airflow-distribution board one, and its distributivity is realized first, the distribution grid decision that effect is comprised of the combination percent opening; Again through the diffusion of a period of time with flow, passed through again the suitably distribution for the second time of the airflow-distribution board two of variation of percent opening, its distributivity is got back and is again realized, originally the large size turbulent flow is distributed plate and is divided into the very little turbulent flow of countless areas, this moment, flow velocity tended towards stability, distribution is tending towards evenly rationally, and moving direction all is tending towards vertical with the electric field main cross section.Along with smoke gas flow continue in an electric field region diffusion with flow, be subjected to electric field corona, charged, electric field force and action of gravitation, dust is wherein constantly separated with gas, the disturbing factors such as dust concentration and diffusance also correspondingly reduce gradually.Tackle thus its distributivity and make again suitable adjustment; In order to further improve the online probability of charged grit and a large amount of reduce " reentrainment of dust " to the impact of dust collection efficiency.By the airflow-distribution board three that special drilling is arranged, realize the distribution for the third time of smoke gas flow, finally achieve the above object thereby make it distributivity.
In order to prevent that the distribution grid pore from being stopped up by dust and affecting distribution, every layer of airflow-distribution board all has ash removal equipment for flapping, and the ash removal equipment for flapping that acts on airflow-distribution board one and airflow-distribution board two is the electromagnetic pulse rapping apparatus.On force transmission mechanism, force transmission mechanism is passed to airflow-distribution board one and airflow-distribution board two with the rapping power of electromagnetic pulse rapping apparatus output to the electromagnetic pulse rapping apparatus, thereby reaches the purpose of airflow-distribution board deashing by certain amplitude and cycle rapping; In like manner, the rapping power of airflow-distribution board three is a part of anode rapping power that transmits from dowel bar, realizes the purpose of distribution grid deashing by cathode vibrator.
Useful effect of the present invention:
1. the smoke gas flow adjustment region is deep and broad.
2. the distribution grid of various percent openings can obtain by the various combinations of elementary cell, is easy to change, and is suitable for using under various conditions.
3. the smoke gas flow distributivity is more stable and reasonable, can avoid a large amount of " eddy current ", " jet " and " dead angle " etc. to affect the phenomenon that air-flow distributes occurs, especially to Large-sized Electrostatic Precipitator, can significantly adjust smoke gas flow distribution everywhere in electric field, make it to be more conducive to the probability that the electric-field charge grit is caught by the two poles of the earth utmost point electric fishing.
4. more rational because of the smoke gas flow distributivity, the phenomenons such as " reentrainment of dusts " that affects dust collection efficiency will greatly reduce, thereby be conducive to improve dust collection efficiency.
5. simple in structure, movement parts is few, and the life-span is long.
6. airflow-distribution board three vibration dust-cleanings can carry out deashing by cathode vibrator, and design is unique, the saving energy.
Description of drawings:
Fig. 1 is embodiment one structural representation.
Fig. 2 is embodiment two structural representation.
Fig. 3 is the structural representation of airflow-distribution board two.
Fig. 4 is the structural representation of airflow-distribution board three.
Embodiment:
Referring to accompanying drawing.
Embodiment one
A kind of multiple-combination device for airflow distribution plates of electrostatic precipitator, include housing 1, housing 1 one sides are provided with horizontal air inlet loudspeaker 2, be provided with an electric field region 3, two electric field regions 4 and the ash bucket 5 corresponding with an electric field region 3 and two electric field regions 4 in housing 1, the positions that are positioned in housing 1 in the middle of horizontal air inlet loudspeaker 2 are hung with airflow-distribution board 1, be positioned at horizontal air inlet loudspeaker 2 in housing 1 and be connected the position that connects with housing and be hung with airflow-distribution board 27, the position in housing 1 between an electric field region 3 and two electric field regions 4 is hung with airflow-distribution board 38.Described airflow-distribution board 1, airflow-distribution board 27 and airflow-distribution board 38 are arranged sequentially according to combination percent opening separately respectively, and satisfy the requirement that the relative root-mean-square value of the interior air-flow distribution of electric field all is less than or equal to GB.Be fixed with electromagnetic pulse rapping apparatus 9 in housing 1, the output terminal of electromagnetic pulse rapping apparatus 9 is connected with force transmission mechanism 10, and force transmission mechanism 10 is connected respectively on airflow-distribution board 1 and airflow-distribution board 27.Be provided with cathode vibrator 11 in a described electric field region 3, the dowel bar 12 of cathode vibrator 11 is connected on airflow-distribution board 38.
Embodiment two:
A kind of multiple-combination device for airflow distribution plates of electrostatic precipitator, include housing 1, housing 1 one sides are provided with upper air loudspeaker 2, be provided with an electric field region 3, two electric field regions 4 and the ash bucket 5 corresponding with an electric field region 3 and two electric field regions 4 in housing 1, the positions that are positioned in housing 1 in the middle of upper air loudspeaker 2 are hung with airflow-distribution board 1, be positioned at upper air loudspeaker 2 in housing 1 and be connected the position that connects with housing and be hung with airflow-distribution board 27, the position in housing 1 between an electric field region 3 and two electric field regions 4 is hung with airflow-distribution board 38.Described airflow-distribution board 1, airflow-distribution board 27 and airflow-distribution board 38 are arranged sequentially according to combination percent opening separately respectively, and satisfy the requirement that the relative root-mean-square value of the interior air-flow distribution of electric field all is less than or equal to GB.Be fixed with electromagnetic pulse rapping apparatus 9 in housing 1, the output terminal of electromagnetic pulse rapping apparatus 9 is connected with force transmission mechanism 10, and force transmission mechanism 10 is connected respectively on airflow-distribution board 1 and airflow-distribution board 27.Be provided with cathode vibrator 11 in a described electric field region 3, the dowel bar 12 of cathode vibrator 11 is connected on airflow-distribution board 38.
Claims (2)
1. multiple-combination device for airflow distribution plates of electrostatic precipitator, include housing, housing one side is provided with the air inlet loudspeaker, be provided with an electric field region, two electric field regions and the ash bucket corresponding with an electric field region and two electric field regions in housing, it is characterized in that: the position that is positioned in housing in the middle of the air inlet loudspeaker is hung with airflow-distribution board one, be positioned at the position that the air inlet loudspeaker are connected with housing in housing and be hung with airflow-distribution board two, the position in housing between an electric field region and two electric field regions is hung with airflow-distribution board three; Described airflow-distribution board one, airflow-distribution board two and airflow-distribution board three are arranged sequentially according to combination percent opening separately respectively, and satisfy the requirement that the relative root-mean-square value of the interior air-flow distribution of electric field all is less than or equal to GB; Be fixed with the electromagnetic pulse rapping apparatus in described housing, the output terminal of electromagnetic pulse rapping apparatus is connected with force transmission mechanism, and force transmission mechanism is connected respectively on airflow-distribution board one and airflow-distribution board two; Be provided with cathode vibrator in a described electric field region, the dowel bar of cathode vibrator is connected on airflow-distribution board three.
2. a kind of multiple-combination device for airflow distribution plates of electrostatic precipitator according to claim 1, it is characterized in that: described air inlet loudspeaker are horizontal air inlet loudspeaker or upper air loudspeaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110081448 CN102198426B (en) | 2011-03-31 | 2011-03-31 | Multiple combined apparatus for air flow distribution board of electrostatic precipitator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110081448 CN102198426B (en) | 2011-03-31 | 2011-03-31 | Multiple combined apparatus for air flow distribution board of electrostatic precipitator |
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| Publication Number | Publication Date |
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| CN102198426A CN102198426A (en) | 2011-09-28 |
| CN102198426B true CN102198426B (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110081448 Expired - Fee Related CN102198426B (en) | 2011-03-31 | 2011-03-31 | Multiple combined apparatus for air flow distribution board of electrostatic precipitator |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102416362A (en) * | 2011-12-16 | 2012-04-18 | 江苏科行环境工程技术有限公司 | Air flow uniform distribution device for electric dust remover |
| CN104984826A (en) * | 2015-07-13 | 2015-10-21 | 广西博世科环保科技股份有限公司 | High-temperature electric dust-removing system for flue gas of industrial kilns |
| CN110548596A (en) * | 2019-09-30 | 2019-12-10 | 艾尼科环保技术(安徽)有限公司 | Electrostatic precipitator export dust collection device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2795517Y (en) * | 2005-05-31 | 2006-07-12 | 宝山钢铁股份有限公司 | Air flow distributor in large air flow pipeline system |
| CN2827538Y (en) * | 2005-09-29 | 2006-10-18 | 宝山钢铁股份有限公司 | Air damper |
| CN1872385A (en) * | 2005-05-31 | 2006-12-06 | 国电环境保护研究所 | Method for changing electrostatic precipitator in coal-fired power plant to bag type dust catcher |
| CN201572678U (en) * | 2009-09-28 | 2010-09-08 | 江苏中科节能环保技术有限公司 | Air flow distribution device of electric dust remover |
| CN202061710U (en) * | 2011-03-31 | 2011-12-07 | 合肥水泥研究设计院 | Multiple-combination device for airflow distribution plates of electrostatic precipitator |
-
2011
- 2011-03-31 CN CN 201110081448 patent/CN102198426B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2795517Y (en) * | 2005-05-31 | 2006-07-12 | 宝山钢铁股份有限公司 | Air flow distributor in large air flow pipeline system |
| CN1872385A (en) * | 2005-05-31 | 2006-12-06 | 国电环境保护研究所 | Method for changing electrostatic precipitator in coal-fired power plant to bag type dust catcher |
| CN2827538Y (en) * | 2005-09-29 | 2006-10-18 | 宝山钢铁股份有限公司 | Air damper |
| CN201572678U (en) * | 2009-09-28 | 2010-09-08 | 江苏中科节能环保技术有限公司 | Air flow distribution device of electric dust remover |
| CN202061710U (en) * | 2011-03-31 | 2011-12-07 | 合肥水泥研究设计院 | Multiple-combination device for airflow distribution plates of electrostatic precipitator |
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