The In-Depth Experimental Study on the Low Low-Temperature Electrostatic Precipitator Based on Pilot Platform

doi:10.11930/j.issn.1004-9649.201802040

Abstract

Abstract: Based on the 50 000 m³/h actual flue gas pilot test system, the total particle matters (TSP) are measured by using the conventional sampling gun plus glass fiber filter tube together with the integrated sampling head plus quartz filter membrane. In addition, PM_2.5 is measured by ELPI while SO₃ is measured by the independent R&D SO₃ sampling system, and specific resistance of fly ash is measured by using BDL type fly ash operating condition specific resistance tester. The test results show that the TSP concentration of ESP outlet are 11.6, 9.0 and 5.4 mg/m³ at the temperature of 130℃, 90℃, 80℃ respectively and the concentration of PM_2.5 are 0.8, 0.4 and 0.2 mg/m³, such that significant emission reduction of TSP and PM_2.5 is observed. The SO₃ concentration of ESP outlet are 1.25, 0.10 and 0.14 mg/m³, respectively, with the corresponding removal efficiency of the ESP system as 22.84%, 96.15% and 96.61% respectively, which means the low-low temperature ESP system is capable of removing the majority of SO₃ from flue gas. The ash condition resistivity of ESP inlet are 3.02×10¹³, 6.15×10¹² and 5.24×10¹¹ Ω·cm respectively.

Key words: coal-fired power plant, low-low temperature electrostatic precipitator, TSP, PM_2.5, SO₃, ash condition resistivity

CLC Number:

TM621
X51

WU Jin, LIU Hanxiao, LI Jianguo, ZHAO Lin, XU Dongxu, LUO Jianyou, ZHAO Shengqing. The In-Depth Experimental Study on the Low Low-Temperature Electrostatic Precipitator Based on Pilot Platform[J]. Electric Power, 2018, 51(6): 11-16.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.201802040

https://www.electricpower.com.cn/EN/Y2018/V51/I6/11

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