CN103464286B - Asymmetrically-partielectric electric dust remover - Google Patents
Asymmetrically-partielectric electric dust remover Download PDFInfo
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- CN103464286B CN103464286B CN201310459678.1A CN201310459678A CN103464286B CN 103464286 B CN103464286 B CN 103464286B CN 201310459678 A CN201310459678 A CN 201310459678A CN 103464286 B CN103464286 B CN 103464286B
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Abstract
The present invention is specially a kind of Asymmetrically-partielectric electric dust remover, solves not up to standard the carrying out of existing electric cleaner discharge and transforms the problem that there is emission effect difference.When N is odd number, the dust-collecting area of (N+1)/2 service area is maximum, and the dust-collecting area of (N+1)/2 service area and the dust-collecting area of rear and front end service area all taper off and distribute; When N is even number, N/2 service area is maximum and identical with the dust-collecting area of (N/2)+1 service area, and N/2 service area and the dust-collecting area of (N/2)+1 service area and the dust-collecting area of rear and front end service area all taper off and distribute.Reasonable in design of the present invention is reliable, anterior electric field is divided into community, and powers separately, significantly can improve the voltage x current of anterior electric field, thus improve the dust-collecting efficiency of anterior electric field, lays the foundation for lowering total discharge; Rear class electric field is divided into little subregion, can optimize vibration dust-cleaning sequential flexibly, reduces the impact of secondary fly-up, finally improves efficiency of dust collection.
Description
Technical field
The present invention relates to electric dust collector, be specially a kind of Asymmetrically-partielectric electric dust remover.
Background technology
At present, the environmental protection standard new along with country is put into effect, and coal-burning power plant's dust emission limit value requires at below 30mg/Nm3, and existing electric cleaner, due to not up to standard, faces technological transformation.Tradition reforming mode has increases specific collection area, flue gas conditioning, replacing power supply, change deashing pattern etc., and owing to lacking corresponding theory support, transformation often has blindness, and correctional effect is not ideal.What have directly changes electric bag or sack cleaner into, but through actual use in a few years, and sack cleaner comes out following problem gradually: resistance is large, change bag costly, useless bag is difficult etc.
Summary of the invention
The present invention transforms to solve not up to standard the carrying out of existing electric cleaner discharge the problem that there is emission effect difference, provides a kind of Asymmetrically-partielectric electric dust remover.
The present invention adopts following technical scheme to realize: Asymmetrically-partielectric electric dust remover, comprise the service area of N number of front and back distribution, N is natural number, when N is odd number, the dust-collecting area of (N+1)/2 service area is maximum, and the dust-collecting area of (N+1)/2 service area and the dust-collecting area of rear and front end service area all taper off and distribute; When N is even number, N/2 service area is maximum and identical with the dust-collecting area of (N/2)+1 service area, and N/2 service area and the dust-collecting area of (N/2)+1 service area and the dust-collecting area of rear and front end service area all taper off and distribute.
By up-to-date Electric Scrubber Efficiency empirical equation, breakdown voltage or the relation between maximum current and discharge electrode position in the electric field that Binding experiment draws, asymmetrical subregion is carried out to this bulk electric field of deduster, electric cleaner service area adopts asymmetrical subregion, improve Uniform discharge in electric precipitation, reduce inverse corona intensity, improve electric precipitation and effectively utilize space; By asymmetrical subregion, can realize optimizing rapping, reduce the impact of secondary fly-up; Finally, then coordinate corresponding Energy control technology, improve electric field average field-strength, finally realize the significantly raising of efficiency of dust collection.
The dust-collecting area ratio of N number of service area is from front to back 1:1.3:1.5 ... 1.5:1.3:1, in first equal increments, rear equivalent successively decreases distribution, anterior voltage of electric field is made to reach more than 80KV, coordinate the cathode line that electric discharge is strong, electric field strength is significantly improved, and greatly improves Uniform discharge in single electric field, electrical efficiency can reach more than 90%, a large amount of dust is collected at anterior electric field, thus lays the foundation for reducing outlet drain.Rear class electric field is divided into little subregion, coordinates the cathode line of high discharge inception voltage, realizes high voltage low current, and can optimize vibration dust-cleaning sequential flexibly, finally makes efficiency of dust collection reach more than 99.85%, below outlet drain 30mg/Nm3.
Reasonable in design of the present invention is reliable, anterior electric field is divided into community, and powers separately, significantly can improve the voltage x current of anterior electric field, thus improve the dust-collecting efficiency of anterior electric field, lays the foundation for lowering total discharge; Rear class electric field is divided into little subregion, can optimize vibration dust-cleaning sequential flexibly, reduces the impact of secondary fly-up, finally improves efficiency of dust collection.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1-service area.
Detailed description of the invention
Asymmetrically-partielectric electric dust remover, the service area 1, N comprising the distribution of N number of front and back is natural number, when N is odd number, the dust-collecting area of (N+1)/2 service area 1 is maximum, and the dust-collecting area of (N+1)/2 service area 1 and the dust-collecting area of rear and front end service area 1 all taper off and distribute; When N is even number, N/2 service area 1 is maximum and identical with the dust-collecting area of (N/2)+1 service area 1, and N/2 service area 1 and the dust-collecting area of (N/2)+1 service area 1 and the dust-collecting area of rear and front end service area 1 all taper off and distribute.
The dust-collecting area ratio of N number of service area 1 is from front to back 1:1.3:1.5 ... 1.5:1.3:1, in first equal increments, rear equivalent successively decreases distribution.
In specific implementation process, the supporting multi-form cathode line of each service area 1, equipping rules is that anterior electric field cathode line discharge inception voltage is low, and electric discharge is strong, and rear class electric field cathode line discharge inception voltage is high, and electric discharge evenly.
Supporting supply voltage grade must can reach more than 82KV, and crest voltage and average voltage close.
Electric cleaner is six service areas 1, and the ratio of six service areas 1 from left to right dust-collecting area is 1:1.3:1.5:1.5:1.3:1, by configuring corresponding high voltage source, makes concentration of emission be reduced to 25mg/Nm3.
Up-to-date Electric Scrubber Efficiency empirical equation is the emission request for 10-30mg/Nm3, by experiment the empirical data of room research and Practical Project, sums up electric cleaner index type selecting effectiveness formula out:
Wherein
,
,
be defined as electric precipitation index, other parameters are as follows:
: efficiency of dust collection;
,
: power plant's operating mode and particle radius related experiment coefficient;
: the average field intensity kV/cm of electric field;
: the peak electric field strength kV/cm of electric field;
: the ratio specific collection area of electric precipitation
/
/
.
Above-mentioned defined electric precipitation exponential size, in fact reflect the electrostatic energy storage of unit flue gas in electric cleaner, the larger efficiency of dust collection of energy storage is higher; Above-mentioned efficiency of dust collection rule is adapted to conventional single-phase power supply, intermediate frequency power supply, high frequency electric source, three phase mains, 3 electric fields, 4 electric fields and 5 electric-field dust collectors.
According to our modification Experience to 50 multiple stage 125-600MW coal-burning power plant electric precipitations, propose to realize below 30mg/Nm3 and discharge, 400mm is with the working field strength of the electric cleaner of pole span and meet following condition than specific collection area or electric precipitation index:
At electric precipitation index with under discharge theory, ash quantity in the discharge of electric precipitation and the voltage of operation or electric-field intensity, coal and the ratio specific collection area of electric precipitation relevant, the advance of power technology is under being reflected in identical deduster body and fire coal, the maximization of electric precipitation index.
Claims (2)
1. an Asymmetrically-partielectric electric dust remover, comprise the service area (1) of N number of front and back distribution, N be more than or equal to 6 natural number, it is characterized in that: when N is odd number, the dust-collecting area of (N+1)/2 service area (1) is maximum, and the dust-collecting area of the dust-collecting area of (N+1)/2 service area (1) and rear and front end service area (1) all tapers off and distributes; When N is even number, N/2 service area (1) is maximum and identical with the dust-collecting area of (N/2)+1 service area (1), and N/2 service area (1) and the dust-collecting area of (N/2)+1 service area (1) and the dust-collecting area of rear and front end service area (1) all taper off and distribute.
2. Asymmetrically-partielectric electric dust remover according to claim 1, is characterized in that: the dust-collecting area ratio of N number of service area (1) is from front to back 1:1.3:1.5 ... 1.5:1.3:1, in first equal increments, rear equivalent successively decreases distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310459678.1A CN103464286B (en) | 2013-07-18 | 2013-10-08 | Asymmetrically-partielectric electric dust remover |
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| CN2013103020498 | 2013-07-18 | ||
| CN201310302049.8 | 2013-07-18 | ||
| CN201310302049 | 2013-07-18 | ||
| CN201310459678.1A CN103464286B (en) | 2013-07-18 | 2013-10-08 | Asymmetrically-partielectric electric dust remover |
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| CN103464286A CN103464286A (en) | 2013-12-25 |
| CN103464286B true CN103464286B (en) | 2016-03-23 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105617805A (en) * | 2016-01-07 | 2016-06-01 | 福建龙净环保股份有限公司 | Design method and design system for electrostatic-bag dust collector |
| CN108889452B (en) * | 2018-07-10 | 2023-08-04 | 浙江菲达环保科技股份有限公司 | Type selection method of electrostatic precipitator for deep cooling of flue gas |
| CN110280390A (en) * | 2019-07-15 | 2019-09-27 | 珠海格力电器股份有限公司 | Dust accumulation assembly, electrostatic dust removal module and air purification device |
| CN113145309B (en) * | 2021-03-12 | 2023-06-16 | 山西晋浙环保科技有限公司 | Design selection method of electric dust collector |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4878927A (en) * | 1986-10-22 | 1989-11-07 | Adolf Margraf | Filtering separator for particles and harmful gases from unrefined gases |
| JPH07256140A (en) * | 1994-03-23 | 1995-10-09 | Daikin Ind Ltd | Air cleaner and electrostatic filter used therefor |
| JP2000301026A (en) * | 1999-04-20 | 2000-10-31 | Arusutomu Power Kk | Electric precipitator |
| CN2905225Y (en) * | 2006-01-25 | 2007-05-30 | 武汉凯迪蓝天科技有限公司 | Multi-stage combined static dust collector |
| JP2007307335A (en) * | 2006-05-22 | 2007-11-29 | Atsushi Minoura | Dust remover for electrostatic cleaners |
| CN201015722Y (en) * | 2007-02-27 | 2008-02-06 | 王银昌 | Hybrid type highly effective dust remover |
| CN201692887U (en) * | 2010-07-27 | 2011-01-05 | 中国船舶重工集团公司第七�三研究所 | Dust separating device with high temperature, long service, and high efficiency |
| CN202933785U (en) * | 2012-11-14 | 2013-05-15 | 浙江大学 | Passages arranged asymmetrically with different widths of bipolar discharge device |
| CN203342944U (en) * | 2013-07-18 | 2013-12-18 | 中国能源建设集团山西省电力环保设备总厂 | Asymmetrical partitioned electric dust collector |
-
2013
- 2013-10-08 CN CN201310459678.1A patent/CN103464286B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4878927A (en) * | 1986-10-22 | 1989-11-07 | Adolf Margraf | Filtering separator for particles and harmful gases from unrefined gases |
| JPH07256140A (en) * | 1994-03-23 | 1995-10-09 | Daikin Ind Ltd | Air cleaner and electrostatic filter used therefor |
| JP2000301026A (en) * | 1999-04-20 | 2000-10-31 | Arusutomu Power Kk | Electric precipitator |
| CN2905225Y (en) * | 2006-01-25 | 2007-05-30 | 武汉凯迪蓝天科技有限公司 | Multi-stage combined static dust collector |
| JP2007307335A (en) * | 2006-05-22 | 2007-11-29 | Atsushi Minoura | Dust remover for electrostatic cleaners |
| CN201015722Y (en) * | 2007-02-27 | 2008-02-06 | 王银昌 | Hybrid type highly effective dust remover |
| CN201692887U (en) * | 2010-07-27 | 2011-01-05 | 中国船舶重工集团公司第七�三研究所 | Dust separating device with high temperature, long service, and high efficiency |
| CN202933785U (en) * | 2012-11-14 | 2013-05-15 | 浙江大学 | Passages arranged asymmetrically with different widths of bipolar discharge device |
| CN203342944U (en) * | 2013-07-18 | 2013-12-18 | 中国能源建设集团山西省电力环保设备总厂 | Asymmetrical partitioned electric dust collector |
Non-Patent Citations (4)
| Title |
|---|
| 侯可中.电除尘创新改造的探索.《电力设备》.2007,第8卷(第6期), * |
| 方元凡.国产100MW静电除尘器技术改造.《中国设备工程》.2003,(第11期), * |
| 电除尘器电极结构与灰堆积特性相关性研究;朱继保等;《科技导报》;20081231;第26卷(第9期);第30-33页 * |
| 陈泽民等.电除尘器增效技术改造.《中国环保产业》.2001,(第4期), * |
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