电除尘器电场数值计算与性能预测的实验研究  

Experimental Study and Numerical Calculation on the Performance of Electrostatic Precipitators

作　　者：党小庆[1] 任燕[1] 马广大[1] 翟瑛[1] 李东阳[1] 黄家玉[1] 

机构地区：[1]西安建筑科技大学环境与市政工程学院,西安710055

出　　处：《科技导报》2007年第20期36-42,共7页Science & Technology Review

基　　金：国家高技术研究发展计划(863计划)项目(2002AA642040-01)

摘　　要：通过实验测量了大型电除尘器常用的12种放电极与C480和ZT24板匹配时极板表面电流密度大小及分布。采用实验和数值计算相结合的方法,以极板表面平均电流密度、电流密度相对标准差为指标对电场性能进行了评价和预测,给出了几种电场性能较好的电极配置形式和几何参数调整范围。用有限元法求出V型线与ZT24板匹配时的电位与场强的空间分布,结合实验与数值计算结果分析了场强对电晕电流的影响。对电除尘器的设计选型有一定的参考价值。In this paper, the current density on the collecting plate is measured on 12 kinds of discharge electrodes combined with C480 and ZT24 collecting plates. The effect of different discharge electrodes and settings on the experiment results is discussed in terms of average current density and relative deviation. The distributions of electric potential and potential gradient at V type discharge electrodes combined with ZT24 collecting plate are calculated by using finite element method .Based on the results of the experiment and numerical calculation, the effect of potential gradient on the corona current is discussed.

关 键 词：电除尘器 电流密度分布 平均电流密度 极板附近场强 有限元法 

分 类 号：X701.2[环境科学与工程—环境工程]