School of Mechanical Engineering, University of Science and Technology Beijing , Beijing, People's Republic of China.
Zhejiang Feida Environmental Science and Technology Co, Ltd ., Zhuji, Zhejiang, People's Republic of China.
J Air Waste Manag Assoc. 2020 Sep;70(9):892-903. doi: 10.1080/10962247.2020.1768965. Epub 2020 Aug 14.
Collecting plate is the core component of the electrostatic precipitator. In order to explore the influences of the plates shape and electrode configuration on the particle precipitation process, numerical models of an ESP with seven different types of collecting plates were established and calculated. The simulation results showed that the shape of the collecting plate did have a great impact on the electric field, airflow particles movement. From the perspective of electric field characteristics, the space current density and electrostatic shielding effect in multielectrode ESPs varied with the shape of the plates under the same supply voltage. When using C-type plate, the shielding effect was minimal and the current density distribution of the plate was more uniform. When it comes to airflow distribution, small vortex structures were easily generated near the plates when the CW type, the rod-curtain and Z-type plates were used, leading to particle re-entrainments. In terms of collection efficiency, the C-type plate enjoyed the highest efficiency, while the ZT-type and corrugated plate were less efficient. The main source of air pollution is the flue gas released by fuel combustion. electrostatic precipitator plays an important role in pollutant discharge control and environmental protection. As the core component of the electrostatic precipitator, the form of the collecting plate exerts a serious impact on its dust removal performance. The study focuses on the analysis of the collecting plate shape on the electric field characteristics of electrostatic precipitators, flow distribution characteristics and the influence of the collecting efficiency. It is expected that through the research, some guidance will be provided with the electrode configuration selection and optimization of ESP.
集尘板是静电除尘器的核心部件。为了探索集尘板的形状和电极配置对颗粒捕集过程的影响，建立并计算了七种不同类型集尘板的静电除尘器数值模型。模拟结果表明，集尘板的形状确实对电场、气流和颗粒运动有很大的影响。从电场特性的角度来看，在相同的供电电压下，多电极静电除尘器的空间电流密度和静电屏蔽效应随集尘板的形状而变化。使用 C 型板时，屏蔽效果最小，板的电流密度分布更均匀。在气流分布方面，CW 型、棒-帘和 Z 型集尘板附近容易产生小涡结构，导致颗粒再夹带。在收集效率方面，C 型板的效率最高，而 ZT 型和波纹板的效率较低。空气污染物的主要来源是燃料燃烧产生的废气。静电除尘器在污染物排放控制和环境保护方面起着重要作用。作为静电除尘器的核心部件，集尘板的形状对其除尘性能有严重的影响。本研究重点分析了集尘板形状对静电除尘器电场特性、流动分布特性和收集效率的影响。期望通过研究，为静电除尘器的电极配置选择和优化提供一些指导。
