转炉煤气深度净化中湿式电除尘器的流场优化及其除尘性能预测

焦阳; 代聪; 李新强; 赖志强; 王迪; 李朝阳; 陈莉娟; 党小庆

doi:10.13205/j.hjgc.202602013

转炉煤气深度净化中湿式电除尘器的流场优化及其除尘性能预测

doi: 10.13205/j.hjgc.202602013

焦阳¹,
代聪²,
李新强^1,4,
赖志强¹,
王迪¹,
李朝阳¹,
陈莉娟³,
党小庆^2, ,

1. 中国重型机械研究院股份公司, 西安 710018;
2. 西安建筑科技大学环境与市政工程学院陕西省环境工程重点实验室, 西安 710055;
3. 中国重型机械研究院股份公司成都分院, 成都 610042;
4. 西安交通大学机械工程学院, 西安 710049

基金项目:

陕西省重点研发计划（2024SF-ZDCYL-05-06）；国机重装重大科研项目（2023ZLKY-13）；国机重装青年科技基金项目（QNJJ-2024-09）

详细信息

作者简介:
焦阳（1999—），男，硕士，助理工程师，主要研究方向为大气污染控制技术及设备。jiao1023y@163.com

通讯作者:
党小庆（1964—），男，博士，教授，主要研究方向为大气污染控制技术及设备。dangxq@163.com

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出版历程
- 收稿日期: 2025-03-03
- 网络出版日期: 2026-04-11
- 刊出日期: 2026-02-01

Flow field optimization and particulate collection performance prediction in wet electrostatic precipitators for deep converter gas purification

1. China Heavy Machinery Research Institute Co., Ltd., Xi'an 710018, China;
2. Shaanxi Key Laboratory of Environmental Engineering, Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;
3. Chengdu Branch, China Heavy Machinery Research Institute Co., Ltd., Chengdu 610042, China;
4. School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, China

摘要

摘要: 为提高某转炉出柜煤气湿式电除尘器的实际工程应用效果，通过COMSOL Multiphysics对湿式电除尘器内部流场进行模拟分析，并对其在不同工况条件下的除尘性能和伏安特性曲线进行预测。结果表明：经气流分布优化后，电场进口断面气流均方根σ=0.159，电除尘器进出口总压差为205 Pa，符合标准要求；当入口颗粒物浓度分别为100，150 mg/m³时，湿式电除尘器应保证在30，35 kV以上的外加电压下运行，出口颗粒物浓度才能满足煤气用户的使用标准要求；在外加电压为30~45 kV的条件下，线电流密度可取值范围为0.048~0.149 mA/m，经现场实测，数值模拟结果与实测结果一致性较好。研究结果可为转炉出柜煤气湿式电除尘器及其电源的选型设计提供参考。
- 湿式电除尘器 /
- 数值模拟 /
- 除尘性能预测 /
- 伏安特性曲线
Abstract: To improve the practical engineering application effect of the wet electrostatic precipitator for the gas from a certain converter outlet cabinet， the internal flow field of the wet electrostatic precipitator was simulated and analyzed through COMSOL Multiphysics， and its dust removal performance and volt-ampere characteristic curves under different working conditions were predicted. The results showed that after optimizing the airflow distribution， the root mean square of the airflow at the inlet section of the electric field was 0.159， and the total pressure difference between the inlet and outlet of the electrostatic precipitator was 205 Pa， which met the emission standard requirements. When the inlet particle concentration was 100 mg/Nm³ and 150 mg/Nm³， respectively， the wet electrostatic precipitator should be ensured to operate under an external voltage of 30 kV and 35 kV or above， so that the outlet particle concentration could meet the requirements of gas users' usage standards. Under the condition of an applied voltage of 30 to 45 kV， the line current density can be taken within the range of 0.048 to 0.149 mA/m. Through on-site measurement， the numerical simulation results were in good agreement with the measured results. This study can provide a reference for the selection and design of wet electrostatic precipitators and their power sources for converter discharge gas.
- WESP /
- numerical simulation /
- particulate collection performance prediction /
- volt-ampere characteristic curve

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