新型波纹-孔板对电除尘器性能影响的研究  

Research on the Effect of New Corrugated-orifice Plate on the Performance of Electric Dust Remover

作　　者：耿婉婷 贺晓扬 杨振民[1] 黄超[1] 刘一玮 GENG Wan-ting;HE Xiao-yang;YANG Zhen-min;HUANG Chao;LIU Yi-wei(School of Energy and Environmental Engineering,Hebei University of Technology,Tianjin 300401,China)

机构地区：[1]河北工业大学能源与环境工程学院,天津300401

出　　处：《应用能源技术》2022年第7期1-7,共7页Applied Energy Technology

基　　金：河北省基础研究计划项目(E2018202333);河北省创新能力提升计划项目(194537130)。

摘　　要：本文基于有限元COMSOL Multiphysics数值模拟的方法建立了静电场、湍流场、粒子浓度分布场的多物理场耦合数学方程,研究了平板、孔板、波纹板及新设计的波纹-孔板静电除尘器在EHD流的扰动下,不同主流风速、颗粒物粒径对粒子荷电和其运动规律及捕集效率的影响。结果表明波纹-孔板收尘极在低风速下较好的削弱了离子风的涡旋大小,在较高风速下波纹板产生回流涡旋,增大了对主气流的阻力,使得细颗粒物向着有利于被收集的方向运动,从而提高了除尘效率。In this paper,based on the numerical simulation method of finite element COMSOL Multiphysics,the multi-physics coupling mathematical equations of electrostatic field,turbulent flow field and particle concentration distribution field are established,and the flat,orifice,corrugated plate and the newly designed corrugated-orifice electrostatic precipitator are studied.Under the disturbance of EHD flow,the influence of different mainstream wind speed and particle size on particle charge,its motion law and capture efficiency.The results show that the corrugated-orifice plate dust collector can better weaken the vortex size of the ion wind at low wind speed,and the corrugated plate produces a backflow vortex at high wind speed,which increases the resistance to the main air flow and makes the fine particles move toward the vortex.It is conducive to the movement in the direction of collection,thereby improving the dust removal efficiency.

关 键 词：数值分析 波纹-孔板 离子风涡旋 除尘效率 

分 类 号：X701.2[环境科学与工程—环境工程]