EFFECT OF WIRE ELECTRODE STRUCTURE PARAMETERS ON DUST REMOVAL PERFORMANCE OF PERFORATED PLATE ELECTROSTATIC PRECIPITATORS

YAN Dongjie; ZHANG Xiaohai; YUAN Liangyu; YU Ya

doi:10.13205/j.hjgc.202305009

Volume 41 Issue 5

May 2023

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2023 > 41(5): 61-68,146

ZHAO Jingbo, WANG Rui, HAN Bo, DENG Tian, MA Simeng, HAN Bin. EMISSION CHARACTERISTICS OF GASEOUS POLLUTANTS AND PARTICULATE MATTER FROM A SMALL TURBOFAN ENGINE UNDER MULTIPLE OPERATING CONDITIONS[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(12): 145-154. doi: 10.13205/j.hjgc.202412018

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YAN Dongjie, ZHANG Xiaohai, YUAN Liangyu, YU Ya. EFFECT OF WIRE ELECTRODE STRUCTURE PARAMETERS ON DUST REMOVAL PERFORMANCE OF PERFORATED PLATE ELECTROSTATIC PRECIPITATORS[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(5): 61-68,146. doi: 10.13205/j.hjgc.202305009

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EFFECT OF WIRE ELECTRODE STRUCTURE PARAMETERS ON DUST REMOVAL PERFORMANCE OF PERFORATED PLATE ELECTROSTATIC PRECIPITATORS

doi: 10.13205/j.hjgc.202305009

Shaanxi Key Laboratory of Environmental Engineering, School of Environmental and Municipal Engineering, Xi'an University of Architectural and Technology, Xi'an 710055, China

Received Date: 2022-09-19

Abstract

Abstract

Wire electrode structure is an important factor affecting the removal efficiency of the electrostatic precipitators. A reasonable wire electrode structure can increase the ionization degree of the air, the electric field strength and space charge density in the electrostatic precipitator, and make the dust particles more likely to be charged to the collecting plate. Numerical simulation was used to study the effect of a V-shaped barbed wire structure on the internal electric field distribution, flow field distribution, and dust removal efficiency of the perforated plate electrostatic precipitator. The study found that the electric field intensity near the perforated collecting plate fluctuated spatially and periodically, and the airflow decreased after entering the perforated plate cavity, which was conducive to collecting fine particles. Changing the barb length and barb spacing would affect the electric field strength, space charge density, and gas velocity distribution near the plate, but had little effect on uniformity of the electric field. When the barb length was 25 mm and the barb spacing was 50 mm, the electrostatic precipitator had the highest collection efficiency for particles of various sizes. The collection efficiency of particles with a value of 0.1 μm and 1 μm could reach 69.63% and 76.84% respectively, and the research results had important guidance for the design of polar structures in practical applications.
- perforated plate,
- V-shaped barbed electrode,
- electrostatic precipitator,
- fine particulate,
- removal efficiency

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