WANG Jiayin1, XU Guo2, ZHAO Zehua1, ZHANG Ronghua1, YANG Jingxuan1, HAO Xiaogang1
(1. College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China; 2. Yingkou Qingying Petroleum Chemical Equipment Co., Ltd., Yingkou 115004， China)
Abstract: In order to improve the separation efficiency of cyclone separator, the influence of axial position of vortex stabilizer on the gas-solid two-phase flow characteristics and separation performance of cyclone separator was studied by experiments and CFD numerical simulation. The formation of the mechanism of vortex stabilizer to inhibit the backmixing and escape of particles was discussed. The results show that the setting of vortex stabilizer reduces the axial velocity of airflow near axis, deepens the stagnation degree of airflow, restrains the backmixing and escape of particles, strengthens the secondary separation effect of backmixing particles and improves the separation efficiency of particles. When the axial position of the vortex stabilizer is high, the flow area of the dust outlet section is small, the downward flow resistance is large and the operating pressure drop is large. When the top of vortex stabilizer is equal to the height of dust outlet, the axial velocity near the axis decreases the most, the number of backmixing escaping particles decreases by 25%～50% and the separation efficiency is the highest.
Keywords: cyclone separator; vortex stabilizer; axial position; degree of stagnant flow; separation efficiency
中图分类号：TE621
文献标志码：A
文章编号：1008-5548(2021)04-0104-09
DOI:10.13732/j.issn.1008-5548.2021.04.013
收稿日期： 2021-02-02， 修回日期：2021-05-01，在线出版时间：2021-06-02 16:53。
基金项目：国家自然科学基金项目，编号：U1710101，21506139。
第一作者简介：王佳音(1994—)，女，硕士研究生，研究方向为多相流动过程模拟及装备优化。E-mail：1447564737@qq.com。
通信作者简介：杨景轩(1985—)，男，博士，副教授，硕士生导师，研究方向为多相流动过程模拟及装备优化。E-mail：yangjingxuan@tyut.edu.cn。
