AN Rongronga, LIU Xuedonga,b, LIU Wenminga,b, DING Xinyuea, PENG Taoa
(a. School of Mechanical Engineering; b. Jiangsu Key Laboratory of Green Process Equipment,Changzhou University, Changzhou 213164, China)
Abstract: In order to improve the uniformity of air flow field inside the precipitator and extend the service life of metal fiber filter bag, the numerical simulation analysis of various filter bags based on the square arrangement of corner was carried out, and the distribution law of air flow velocity and flow distribution coefficient in the precipitator under different intake conditions were studied. Finally, the experimental results and the numerical calculation results were verified and compared. The results show that the gas flow distribution of each filter bag is more uniform when the air inlet of the precipitator based on the square arrangement of corner is located in the lower part; under the same air inlet position, the smaller the air inlet speed is, the better the airflow uniformity is, but the influence of the air inlet speed is not as obvious as the position of the air inlet; the numerical simulation results based on the porous media model are well matched with the experimental results. In order to reduce the operation and maintenance cost of the precipitator, the position of the lower inlet and the relatively small air inlet speed (the filtering speed is not less than 0.01m/s) can be selected in the actual production.
Keywords: metal fiber bag filter; air flow field; flow velocity; numerical simulation
文章编号：1008-5548(2020)03-0022-09
DOI:10.13732/j.issn.1008-5548.2020.03.004
中图分类号：TQ545 文献标志码：A
收稿日期： 2019-11-15，修回日期：2020-01-02，在线出版时间：2020-04-03 15:27。
基金项目：中国石油化工股份有限公司重点研发计划项目，编号：418020-4。
第一作者简介：安蓉蓉(1996—)，女，硕士研究生，从事金属纤维袋式除尘器的优化研究。E-mail：faith_ar@126.com。
通信作者简介：
刘雪东(1965—)，男，教授，硕士生导师，研究方向为能源化工装备结构创新与优化、粉体工程设备与技术。
E-mail：xdliu_65@126.com。
