Influences of Magnetic Field on the Separation of Submicron Particles in Outer Vortex ECP at Different Temperatures

被引：0
|
作者：
Zhang J. [1 ]
Zha Z. [2 ]
Jiang Z. [2 ]
机构：
[1] School of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai
[2] College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai
来源：
Yingyong Jichu yu Gongcheng Kexue Xuebao/Journal of Basic Science and Engineering | 2021年 / 29卷 / 03期
关键词：
Magnetic field; Outer vortex ECP; Separation performance; Several coupling; Submicron particles; Temperature;
D O I：
10.16058/j.issn.1005-0930.2021.03.021
中图分类号：
学科分类号：
摘要：
Aiming at the problem of lowtrapping efficiency for submicron particles in cyclone, the possibility of combination effects of the Lorentz force and the electric field force to improve the submicron particles separation efficiency was explored. Four corona wires were added into the cyclone to form the outer vortex electrostatic cyclone precipitator(ECP), in which magnetic field was introduced, and the simplified model of outer vortex ECP under magnetic field effect was developed. On the basis of establishing the theoretical model with four-field coupling interaction between fluid field, particle dynamic field, electromagnetic field and temperature field, the removal efficiency of submicron particles in outer vortex ECP at different temperatures was simulated. The numerical results indicate that the introduction of magnetic field significantly improves the separation performance of ECP for submicron particles, and effectively reduces the weakening rate of temperature on removal efficiency. With the decreasing temperature or the increasing magnetic flux density, the weakening rate of temperature to the overall efficiency of submicron particles gradually decreases, but the contribution rate of magnetic field gradually increases and tends to be gentle. The lower temperature or the greater magnetic flux density is better for the separation of submicron particles. However, the smaller the magnetic flux density and the higher the temperature, the more significant the magnetic field effect. The research results can provide a reference for the traditional equipment modification of ECP by applying magnetic field and the technological innovation of dust removal related industrial fields. © 2021, The Editorial Board of Journal of Basic Science and Engineering. All right reserved.
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页码：774 / 784
页数：10
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