摘要
分析了超临界直流锅炉主汽温的静态特性和动态特性;对于主汽温的控制,给出了基于"抓住中间点温度,燃水比主调,减温水微调"的基本控制思想;分析了在不同工况下,影响燃水比与主汽温关系的因素,提出了在具体的工程实施中,燃水比与机组负荷、燃烧器摆角或烟气挡板开度之间的模糊规则;分析了中间点温度的选择原则,指出了一种在工程实施中有效的中间点温度;分析了主汽温的控制策略,给出了给煤量控制回路、给水量控制回路和减温水量控制回路。
The static and dynamic characteristic of main steam temperature for supercritical once-through boilers is analyzed. A basic control idea of being based on "depending on intermediate point temperature, fuel- water rate adjusts mainly and desuperheating water adjusts accurately"is introduced. The factors affecting the relation of fuel-water rate and main steam temperature in different condi-tion are analyzed, A fuzzy regulation between fuel- water rate and load, the tilt angle of burner or the openi...
出处
《微计算机信息》
北大核心
2008年第10期17-18,61,共3页
Control & Automation
基金
中国科学院与上海电气集团合作项目:(SE中合(04-08)
关键词
超临界
直流锅炉
主汽温
控制
燃水比
中间点温度
Supercritical
Once- Through Boiler
Main Steam Temperature
Control
Fuel- Water Rate
Intermediate Point Tem- perature
