超临界直流机组停(备)用保护工艺的选择与应用Selection and Application of Shutdown(Reserve) Protection Techniques for Supercritical Once-through Unit
于汀,李志成,张铁,段国武
YU Ting,LI ZHi-cheng,ZHANG Tie,DUAN Guo-wu(Zhejiang Datang Wushashan Power Generation Co.
摘要(Abstract)：
对采用给水加氧处理方式的600 MW超临界直流机组的停(备)用保护方法进行了对比优化,通过实施"氨水碱化烘干+负压抽真空"保护方法,利用现有设备,不需额外投资,操作简单、安全可靠,防锈蚀效果好、机组启动时间短、启动用水量少,取得了良好的效果。
The shutdown(reserve) protection techniques for the 600 MW supercritical once-through unit with oxygenated feedwater treatment are compared and optimized.The method of liquid ammonia alkalization drying + negative pressure vacuum pumping is adopted,in which the existing equipments are used without extra investment.It is also featured by easy operation,safety and reliability,good rust-proof effect,short startup time and less startup water consumption and achieves good effect.
关键词(KeyWords)：
直流机组;停(备)用保护;氨水碱化烘干法;负压抽真空
once-through unit;shutdown(reserve) protection;liquid ammonia alkalization drying method;negative pressure vacuum pumping
基金项目(Foundation):
作者(Author):
于汀,李志成,张铁,段国武
YU Ting,LI ZHi-cheng,ZHANG Tie,DUAN Guo-wu(Zhejiang Datang Wushashan Power Generation Co.
DOI: 10.19585/j.zjdl.2012.08.020
参考文献(References)：
- 直流机组
- 停(备)用保护
- 氨水碱化烘干法
- 负压抽真空
once-through unit - shutdown(reserve) protection
- liquid ammonia alkalization drying method
- negative pressure vacuum pumping