滤筒清灰过程散流器设计与流场分布研究  

Study on diffuser design and flow field distribution in dust cleaning process of filter cartridge

作　　者：王建飞 李世航[2] 李林林 耿凡[2,3] 李小川[2] 杨琨 张龙海 WANG Jianfei;LI Shihang;LI Linlin;GENG Fan;LI Xiaochuan;YANG Kun;ZHANG Longhai(Halagou Coal Washery,Coal Preparation Center of China Energy Shendong Coal Group Co.,Ltd.,Yulin Shaanxi 719315,China;Research Institute of Occupation Health,China University of Mining and Technology,Xuzhou Jiangsu 221116,China;School of Low-Carbon Energy and Power Engineering,China University of Mining and Technology,Xuzhou Jiangsu 221116,China)

机构地区：[1]国能神东煤炭集团洗选中心哈拉沟选煤厂,陕西榆林719315 [2]中国矿业大学职业健康研究院,江苏徐州221116 [3]中国矿业大学低碳能源与动力工程学院,江苏徐州221116

出　　处：《中国安全生产科学技术》2025年第4期105-110,共6页Journal of Safety Science and Technology

基　　金：国家能源集团十大科技攻关项目(E21010028504)。

摘　　要：为优化脉冲喷吹清灰过程、提高清灰效率,以单个滤筒除尘器为研究对象,在原有散流器的基础上优化设计2款新型散流器,采用CFD-DPM方法对脉冲喷吹滤筒清灰过程的两相流分布进行模拟研究。研究结果表明:水滴型散流器对喷吹气流的诱导和汇聚效果明显,改善清灰流场压力分布不均匀的情况;与相比锥形散流器相比,散流器b可以更好地诱导气流,散流器c可以避免底部扰流和尾涡产生,对滤筒上部喷吹效果较好,可提高清灰效率。研究结果可为提高滤筒除尘器的清灰效率提供理论指导。In order to optimize the pulse-jet cleaning process and improve the dust cleaning efficiency,taking a single filter cartridge dust collector as the research object,two new diffusers were designed and optimized based on the original one.The CFD-DPM method was used to simulate the two-phase flow distribution during the pulse-jet cleaning process of filter cartridge.The results show that the waterdrop-shaped diffuser demonstrates significant effect in inducing and converging the jet airflow,effectively improving the uneven pressure distribution in the cleaning airflow field.Compared to the conical diffuser,the diffuser b can better induce the airflow,while the diffuser c can avoid the disturbance and wake vortices at the bottom,resulting in better jet performance on the upper part of filter cartridge and improved cleaning efficiency.The research results can provide theoretical guidance for improving the cleaning efficiency of filter cartridge dust collectors.

关 键 词：滤筒 清灰 散流器 流场分布 CFD-DPM 

分 类 号：X513[环境科学与工程—环境工程] X964