GONG Cheng1a, QIAN Fuping1b, XU Zhicheng2, CHEN Lumin1b, LIU Zhe1a, FU Yuehu1a
(1a. School of Architectural Engineering; 1b. School of Energy and Environment, Anhui University of Technology, Maanshan 243002, China;2. Shanghai Hanyue Intelligent Technology Co., Ltd., Shanghai 201400, China)
Abstract: Based on the pulse dust cleaning device of self-cleaning air filter for heavy duty vehicles, the effects of the injection pipe length, the nozzle diameter and the pulse dust cleaning pressure of the air filter on the dust cleaning performance were studied by the numerical simulation method and the peak wall pressure and the relative standard deviations of velocity were used as evaluation indexes. The results show that in the 6 kinds of the injection pipe length, such as 245, 265, 285, 305, 325 and 345 mm, the longer injection pipe can effectively improve the peak pressure on the inner surface of the filter element. When the length is 345 mm, the peak pressure on the inner surface is the largest and the flow uniformity is the best. The influence of the nozzle diameter on the pulse dust cleaning is mainly that the nozzle diameter will affect the gas flow of the pulse dust cleaning. The nozzle diameter is larger, the peak wall pressure is larger and the flow uniformity is better. When the nozzle diameter is 22 mm, the peak wall pressure is the largest and the flow uniformity is the best.Under the 4 pressure conditions,such as 0.5, 0.6, 0.7 and 0.8 MPa, when the pulse dust cleaning pressure is 0.8 MPa, the peak wall pressure is the largest and the flow uniformity is the best, so the dust cleaning performance is the best at this pressure.
Keywords: heavy duty vehicle; air filter; pulse dust cleaning; numerical simulation
中图分类号：X513
文献标志码：A
文章编号：1008-5548(2021)05-0047-11
DOI:10.13732/j.issn.1008-5548.2021.05.006
收稿日期： 2021-03-13，修回日期：2021-04-08，在线出版时间：2021-08-17 15:13。
基金项目：安徽省科技攻关项目，编号：1301042113。
第一作者简介：龚呈(1996—)，男，硕士研究生，研究方向为工业通风与空气净化。E-mail：1317134745@qq.com。
通信作者简介：钱付平(1974—)，男，教授，博士生导师，研究方向为工业通风与空气净化。E-mail：fpingqian@ahut.edu.cn。
