摘要
调研分析72家燃煤电厂配套的287台不同类型除尘器的运行现状及存在问题,并针对不同类型除尘器给出了相应的优化提效建议:通过干式电除尘器不同电场的振打频度调整、降压振打优化和电源智能控制优化等措施实现节能提效;通过低低温电除尘器多尺度、多场耦合模拟试验,合理布置导流构件解决低温省煤器段的磨损、积灰等问题;通过袋式除尘器气流分布优化和智能调控解决袋式除尘器易糊袋、破袋和能耗高等问题;通过湿式电除尘器极配型式优化提升其运行稳定性,减少电场闪络频繁的现象。
In this study,287 typical coal-fired unit dust removal facilities in 72 power plants are selected to investigate the operation status and issues of dust collectors,and corresponding suggestions are given on optimization and efficiency improvement for different types of dust collectors:For dry electrostatic precipitators(ESPs),energy saving and efficiency improvement can be achieved by adjusting electric field rapping frequency,voltage reduction rapping and power intelligent control optimization;For lowlow temperature ESPs,multi-scale and multi-field coupling simulation test of the whole process can solve the problems of wear and ash deposition,and the guide components can be reasonably arranged;For bag filters,airflow distribution optimization and intelligent regulation can solve the problem of bag breakage and high energy consumption;For wet ESPs,optimization of the electrode configuration can enhance the operational stability and reduce the frequency of electric field flashover.
作者
孙尊强
郑成航
周灿
王圣
马修元
叶毅科
SUN Zunqiang;ZHENG Chenghang;ZHOU Can;WANG Sheng;MA Xiuyuan;YE Yike(National Environmental Protection Research Institute for Electric Power,Nanjing 210031,China;Zhejiang University,Hangzhou 310027,China;State Power Environmental Protection Research Institute,Nanjing 210031,China)
出处
《中国电力》
CSCD
北大核心
2022年第11期194-201,共8页
Electric Power
基金
国家自然科学基金资助项目(52076191)
国家环境保护大气物理模拟与污染控制重点实验室开放课题项目(D2020Y04-13)。
关键词
燃煤电厂
除尘器
运行现状
优化提效
节能提效
coal-fired power plants
dust collectors
operation status
optimization for efficiency improvement
energy saving for efficiency improvement
