摘要
随着火电厂大气污染物排放标准要求日益严格，循环流化床（circulating fluidized bed，CFB）机组大气污染物排放控制运行综合优化的研究成为重点。以CFB机组“炉内脱硫＋烟气SNCR＋尾部湿法脱硫”的大气污染物排放控制技术路线为例，对炉内脱硫、湿法脱硫、脱硝和综合电耗等进行了经济性分析，确立了CFB机组大气污染物运行优化技术路线。结合活性石灰石量、煤质含硫量校正、S02及02预测模型，提出了CFB机组炉内脱硫动态优化控制方案，克服S02在动态运行过程中瞬时值超限的控制难题。该文提出的CFB机组大气污染物运行优化技术路线和炉内脱硫动态优化控制方法均在实际机组进行了运行试验，验证了其可行性。
With the increasingly stringent requirements for the air pollutant emission of thermal power plants, the study of comprehensive optimization of air pollutant emission control in circulating fluidized bed （CFB） units has become the focus. Taking the air pollutant emission control technology route of CFB unit ＂desulfurization ＋ SNCR ＋ wet FGD＂ as an example, the economic analysis of the desulfurization, wet FGD, denitrification and comprehensive power consumption of the unit have been carded out. Besides, in order to overcome the control problem of instantaneous overrun of SO2 during dynamic operation, the dynamic optimization control scheme of desulphurization in CFB boiler is put forward, which combined with the amount of active limestone, the corrected sulfur content of coal, and the prediction model of SO2 and 02. At last, the proposed technology route of air pollutant operation optimization and the dynamic desulfurization optimization control scheme are carded out in the actual unit operation to verify the feasibility.
作者
高明明
洪烽
牟犇
刘吉臻
岳光溪
宋畅
张思海
GAO Mingrningl;HONG Feng;MOU Ben;LIU Jizhen;YUE Guangxi;SONG Chang;ZHANG Sihai(State Key Lab of Alternate Electric Power System With Renewable Energy Sources （North China Electric Power University）, Changping District, Beijing 102206, China;Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Tsinghua University, Haidian District, Beijing 100084, China;Shenhua Guoshen Group Co., Ltd., Xicheng District, Beijing 100032, China;Ningxia Guo Hua Ning-dong Power Generation Co., Ningdong 750408, Ningxia Hui Autonomous Region, China)
出处
《中国电机工程学报》
EI
CSCD
北大核心
2018年第10期3033-3041,共9页
Proceedings of the CSEE
基金
国家重点研发计划项目(2016YFB0600205)
中央高校基本科研业务费专项资金项目(2016MS28)~~
关键词
循环流化床机组
大气污染物
经济性分析
运行
控制优化
circulating fluidized bed （CFB） unit
airpollutant emission
economic analysis
operational controloptimization
