抑制二次扬尘的多孔收尘极板结构参数优化设计

闫东杰; 黄栩渐; 袁良宇; 玉亚

doi:10.13205/j.hjgc.202508009

抑制二次扬尘的多孔收尘极板结构参数优化设计

doi: 10.13205/j.hjgc.202508009

陕西省环境工程重点实验室西安建筑科技大学环境与市政工程学院, 西安 710055

基金项目:

国家重点研发计划项目（2018YFC0705301）；陕西省自然科学基金项目（2023-JC-YB-401）

详细信息

作者简介:
闫东杰（1981—），男，博士，副教授，主要从事颗粒污染物控制理论与技术研究。yandongjie_2000@163. com

通讯作者:
闫东杰（1981—），男，博士，副教授，主要从事颗粒污染物控制理论与技术研究。yandongjie_2000@163.com

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出版历程
- 收稿日期: 2025-03-11
- 录用日期: 2025-04-20
- 修回日期: 2025-04-05

Structural parameter optimization of perforated electrostatic precipitator plates for dust re-entrainment suppression

Shaanxi Key Laboratory of Environmental Engineering, College of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China

摘要

摘要: 实际工程应用与前人的相关研究已证实，多孔板收尘极对抑制二次扬尘有较好作用，但目前对于孔板式收尘极的结构参数设计主要依靠经验，且孔板结构对电除尘器电场性质的影响、抑制二次扬尘和提升除尘效率的效果还停留在定性分析水平，缺乏定量的理论支持。基于抑制二次扬尘、提高除尘效率的目的，采用数值计算方法研究孔板孔隙率和挡板配置形式，包括挡板与孔板的相对位置、挡板倾角、挡板间距、挡板与孔板的间隙，对孔板式电除尘器电场、流场和除尘效率的影响。结果表明：挡板的存在对孔板式电除尘器有积极影响，综合考虑抑制二次扬尘、提高除尘率，多孔极板的设计参数为孔板孔隙率43.5%、挡板正对板面中心、挡板倾角55°、挡板与孔板间隙3 mm、挡板间距45 mm。
- 电除尘器 /
- 挡板配置形式 /
- 二次扬尘 /
- 除尘效率
Abstract: Practical engineering applications and previous studies have confirmed that perforated electrostatic precipitator （ESP） plates are effective at suppressing dust re-entrainment. However， the current design of their structural parameters still mainly relies on empirical experience. Moreover， the effects of perforated plate structures on the electric field properties of electrostatic precipitators， the suppression of dust re-entrainment， and the improvement of dust collection efficiency are still limited to qualitative analysis and lack robust quantitative theoretical support. Using numerical methods， this study investigated the effects of perforated plate porosity and baffle configurations—including the relative position between the baffle and the perforated plate， baffle inclination angle， baffle spacing， and the clearance between the baffle and the plate—on the electric field， flow field， and dust removal efficiency of the perforated-plate electrostatic precipitator. The results showed that the presence of baffles had a positive effect on the perforated-plate electrostatic precipitator. Based on the goals of suppressing dust re-entrainment and improving collection efficiency， the optimal design parameters were determined as follows： a porosity of 43.5%， a baffle orientation facing the center of the plate， a baffle inclination angle of 55°， a baffle-to-plate clearance of 3 mm， and a baffle spacing of 45 mm.
- electrostatic precipitator /
- baffle configuration /
- dust re-entrainment /
- dust collection efficiency

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