摘要
本文介绍了一个颗粒荷电段与颗粒收集段耦合的静电除尘器,并对其开展细微颗粒物荷电收集处理的实验与模拟计算研究。该颗粒荷电段包含四个或八个电晕针,由负高压直流电供电;颗粒收集段设计为平行板对板结构,板与高压直流电源和地线交替连接。由颗粒发生装置产生细微颗粒物,验证该装置在不同的几何构型、环境和操作参数下的颗粒去除效率。实验与模拟结果表明,于粒径小于几十纳米的颗粒,存在部分荷电模式;于较大颗粒,颗粒荷电段和收集段的参数都对去除效率有显著影响。
In this paper, an electrostatic precipitator(ESP) with the coupling of particle charging stage and particle collecting stage is introduced, in which experimental and simulation research on charged-collection treatment of fine particles was carried out. The particle charging stage contained four or eight corona needles, which were supplied by a negative high-voltage DC. The particle collecting stage was designed in a plate-to-plate configuration, of which the plates are alternately connected to a high-voltage DC supply and the ground. Fine particles was supplied by the particle generation device and the the particle removal efficiency was tested under different geometric configurations, environmental and operating parameters. The experimental and simulation results showed that there is a partial charging region for particles smaller than tens of nanometers;for larger particles, parameters of the particle charging stage and particle collecting stage have a significant impact on the removal efficiency.
作者
陈龙文
郑雅诗
黄昭芹
李小倩
元锦恩
李珍
刘锋
陈燕舞
Chen Longwen;Zheng Yashi;Huang Zhaoqin;Li Xiaoqian;Yuan Jin’en;Li Zhen;Liu Feng;Chen Yanwu(College of Light Chemical Industry and Materials Engineering,Shunde Polytechnic,Foshan 528333,China)
出处
《广东化工》
CAS
2022年第24期21-24,共4页
Guangdong Chemical Industry
关键词
空气净化
细微颗粒物
荷电收集
静电除尘
部分荷电模式
air purification
fine particles
charged-collection
electrostatic precipitator
partial charging region
