电极组合配置在电除尘器提效改造中的应用

Application of Electrode Combination Configuration in Efficiency Improvement of Electrostatic Precipitators

电极配置是电除尘器的重要组成部分,通过实验讨论了工业中常用的6种阴极线与C480阳极板配置时的极板表面电流密度大小和分布,分析了不同电极配置形式对电场特性的影响。为改善RS线和BS线结构存在的支撑圆管“电流盲区”现象及BS线内侧芒刺对外侧芒刺电晕的抑制,提出了阴极线结构优化方案;结合三电场中试实验,给出了电除尘器前、后级电场电极配置组合应用的布置形式。电极配置组合方式优化后,电除尘器出口粉尘浓度可降低77.68%。

Electrode configuration is an important component of electrostatic precipitators.Through experiments,the surface current density and distribution of six commonly used cathode wires and C480 anode plate configurations in industry were discussed,and the influence of different electrode configurations on electric field characteristics was analyzed.In order to improve the phenomenon of"current blind spot"in the supporting circular tube of RS and BS wire structures and suppress the corona caused by the inner and outer spikes of BS wire,an optimization plan for the cathode wire structure was proposed.Based on the pilot experiment of three electric fields,a layout form for the combination application of electrode configuration in the front and rear electric fields of the electrostatic precipitator was given.The results showed that after optimizing the electrode configuration combination method,the dust concentration at the outlet of the electrostatic precipitator can be reduced by 77.68%.