复合式静电过滤器净化效率实验研究
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- 英文论文题名：Experimental study of the particle removal efficiency in hybrid electrostatic filtration system
- 论文作者：冯壮波 ; 龙正伟
- 英文论文作者：FENG Zhuangbo ; LONG Zhengwei ; School of Environmental Science and Engineering ; Tianjin University
- 年：2015
- 作者机构：天津大学环境科学与工程学院;
- 论文关键词：静电过滤 ; 电晕放电 ; 滤料 ; 伏安特性 ; 收尘效率
- 英文论文关键词：Hybrid electrostatic filtration ; corona discharge ; filter media ; V-I characteristics ; collection efficiency
- 会议召开时间：2015-08-12
- 会议录名称：静电放电：从地面新技术应用到空间卫星安全防护—中国物理学会第二十届全国静电学术会议论文集
- 语种：中文
- 分类号：TU834.6
- 学会代码：WLJD
- 会议名称：静电放电 ; 从地面新技术应用到空间卫星安全防护—中国物理学会第二十届全国静电学术会议
- 会议地点：中国河北石家庄
- 主办单位：中国物理学会静电专业委员会
- 学会名称：中国物理学会静电专业委员会
- 页数：5
- 文件大小：601k
- 原文格式：D
- 会议级别：全国
摘要
静电除尘与纤维过滤复合具有低压降、高效率的优点,本文搭建了电除尘和纤维滤料串联复合式新系统,研究了复合式静电过滤系统的除尘效率。实验结果显示,复合系统中的滤料对于整体伏安特性的影响可以忽略;将电除尘和空气滤料串联组合可以达到较高的过滤效率,整体过滤效率比单独任何一个过滤元件都大;由于离子风和带电颗粒的作用,位于静电除尘器下游PE滤料的过滤效率有大幅度提高。同单独的PE滤料相比效率其提高50%左右,同时不增加空气压降。因此,在设计复合式静电过滤系统时要考虑离子风和荷电颗粒对于PE滤料效率提升的影响,传统的设计思路将会低估复合静电过滤系统的表现。
The hybrid electrostatic filtration system has lower pressure drop and higher collection efficiency than the conventional system.This paper set up an experimental system of the hybrid electrostatic filtration system combing electrostatic precipitator and PE filter medium and investigated the particle removal efficiency characteristics.The results show that the system’s V-I characteristics are mainly decided by the electrostatic part.The presence of the filter installed downstream of the Esp do not influence the total V-I characteristics.The combination of the Esp and PE medium could have high filtration efficiency,and the total efficiency is higher than individual Esp or PE filter.Due to the effect of the ion wind the charged particle generated by the Esp,the filtration efficiency of PE medium is improved obviously when the Esp is turned on.The efficiency could increase by 50%compared to the case when the Esp is turn off,and the pressure drop do not increase.Therefore,the influence of ion wind and charged particle on the filtration process of PE medium should be considered when designing the hybrid electrostatic filtration system.The traditional method ignoring this mechanism would under-estimate the performance of the hybrid system.
The hybrid electrostatic filtration system has lower pressure drop and higher collection efficiency than the conventional system.This paper set up an experimental system of the hybrid electrostatic filtration system combing electrostatic precipitator and PE filter medium and investigated the particle removal efficiency characteristics.The results show that the system’s V-I characteristics are mainly decided by the electrostatic part.The presence of the filter installed downstream of the Esp do not influence the total V-I characteristics.The combination of the Esp and PE medium could have high filtration efficiency,and the total efficiency is higher than individual Esp or PE filter.Due to the effect of the ion wind the charged particle generated by the Esp,the filtration efficiency of PE medium is improved obviously when the Esp is turned on.The efficiency could increase by 50%compared to the case when the Esp is turn off,and the pressure drop do not increase.Therefore,the influence of ion wind and charged particle on the filtration process of PE medium should be considered when designing the hybrid electrostatic filtration system.The traditional method ignoring this mechanism would under-estimate the performance of the hybrid system.
引文
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[2]黄炜,林宏,郑奎照,等.电袋复合式除尘技术及应用[J].中国环保产业,2006(4):40-42.HUANG Wei,LIN Hong,ZHENG Kuizhao,et al.Electrostatic&fabric hybrid dust removal technology and its application[J].China Environmental Protection Industry,2006,(4):40-42.
[3]郝明途,林天佳,刘焱.我国PM2.5的污染状况和污染特征[J].环境科学与管理,2006,31(2):58-67.HAO Mingtu,LIN Tianjia,LIU Yan.Current pollution status and pollution characteristics of PM2.5 in China[J].Environmental Science and Management,2006,31(2):58-67.
[4]Mangili A,Gendreau M.Transmission of infectious disease during commercial air travel.Lancet,2005,(365),989-996.
[5]Kim,H,Han,B,Kim Y,Oda,T,Won,H.Submicrometer particle removal indoors by a novel electrostatic precipitator with high clean air delivery rate,low ozone emissions and carbon fiber ionizer.Indoor Air,2003,(23),369-378.
[6]Park J,Yoon K,Hwang J.Removal of submicron particles using a carbon fiber ionizer-assisted medium air filter in a heating,ventilation,and air-conditioning(HVAC)system[J].Building and Environment,2011,46(8):1699-1708.
[7]Park J,Yoon K,Kim Y,Byeon J,Hwang J.Removal of submicron aerosol particles and bioaerosols using carbon fiber ionizer assisted fibrous medium filter media[J].Mechanical Science and Technology,2009,23(7):1846~1851.
[8]Huang R,Agranovski I,Pyankov O,Grinshpun S.Removal of viable bioaerosol particles with a low-efficiency HVAC filter enhanced by continuous emission of unipolar air ions[J].Indoor Air,2008,18(2):106-112.
[9]涂扬赓,宋蔷,涂功铭,姚强.孔板对复合电袋除尘器静电区除尘性能影响的实验研究[J].中国电机工程学报,2013,33(17):51-56.TU Yanggeng,SONG Qiang,TU Gongming,YAO Qiang.Experimental research on particulate collection performance by perforated plate in hybrid particulate collector[J].Proceedings of the CSEE,2013,33(17):51-56.
[10]姚宇平,柳静献.电袋复合除尘器的滤料试验与应用[J].中国环保产业,2009,7:20-24.YAO Yuping,LIU Jingxian.Filtering material test and application on electrical bag and complex precipitator[J].China Environmental Protection Industry,2009,7:20-24.
[11]Agranovski I,Huang R,Pyankov,O,Altman,I,Grinshpun,S,2006.Enhancement of the performance of low-efficiency HVAC filters due to continuous unipolar ion emission.Aerosol Science and Technology,2006,40:963-968.
[12]Lee,J,Kim,S,Shin,J,Lee,J,Ku,J,Shin,H,2001.Performance evaluation of electrostatically augmented air filters coupled with a corona precharger.Aerosol Science and Technology,2001,35:785-791.