600MW超临界机组汽温控制策略研究  

Control Strategies of Steam Temperature in 600MW Supercritical Units

作　　者：方廷璋 刘立伟[2] 吴延龙[3] 

机构地区：[1]华电北京热电有限公司 [2]天津大港发电厂 [3]四方电气(集团)有限公司

出　　处：《电站系统工程》2009年第4期53-56,共4页Power System Engineering

摘　　要：针对某600 MW超临界直流锅炉机组,设计了机组的主汽温和再热汽温控制策略。主汽温采用二级喷水减温控制,同时设计了双回路和串级控制策略;再热汽温主要采用烟气挡板调节,辅助采用喷水减温控制。运行实践表明,机组运行稳定,主汽温和再热汽温控制策略有效。The 600MW supercritical once-through boiler units are introduced and the control strategies for the main steam temperature and reheat steam temperature are designed. Two-stage spray desuperheating control method, including the two-loop and cascade control strategies, is designed for the main steam temperature. The reheat steam temperature is controlled by regulating gas baffle and spray desuperheating auxiliarily. Operation experiences of the units indicate that the system operates well and the temperature control strategies of the main steam and reheat steam is effective.

关 键 词：超临界直流锅炉 主汽温 再热汽温 控制策略 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]