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

作　　者：于汀 李志成 张铁 段国武 

机构地区：[1]浙江大唐乌沙山发电有限责任公司,浙江宁波315722

出　　处：《浙江电力》2012年第8期69-71,共3页Zhejiang Electric Power

摘　　要：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 dry- ing ＋ 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：直流机组 停(备)用保护 氨水碱化烘干法 负压抽真空 

分 类 号：TK227[动力工程及工程热物理—动力机械及工程]