工业技术创新2016，Vol.3Issue(5)：855-858,4.DOI:10.14103/j.issn.2095-8412.2016.05.006
1000 MW超超临界机组SCR脱硝系统控制优化
Control Optimization of SCR Denitriifcation System in 1 000 MW Ultra-supercritical Unit
李勇 1王彤1
作者信息
- 1. 徐州华润电力有限公司，江苏徐州，221142
- 折叠
摘要
Abstract
In order to improve the control quality, meet the environmental emission standards, and achieve the target of ultra-low emission, the control system of Selective Catalytic Reduction (SCR) denitrafication system in 1 000 MW ultra-supercritical unit is optimized. Automatic control adopting a compound control system with three-level cascade is realized, in which the concentration of nitrogen oxides (NOx) at chimney inlet is a regulated quantity, decreasing contrasts between default value and actual value through fuzzy control. Also, automatic input radio is increased through predictive control, decreasing the amount of injecting ammonia and possibility of clogging of air preheater. Besides reduction of the pressure of operating staff, cut down on running cost is realized as well, achieving considerable economic benefits.关键词
超超临界机组/脱硝/选择性催化还原反应(SCR)/三级串级/控制优化/超低排放/技术改造Key words
Ultra-supercritical Unit/Denitrification/Selective Catalytic Reduction (SCR)/Three-level Cascade/Control Optimization/Ultra-low Emission/Technological Transformation分类
能源科技引用本文复制引用
李勇,王彤..1000 MW超超临界机组SCR脱硝系统控制优化[J].工业技术创新,2016,3(5):855-858,4.
