某300 MW机组高压主汽门不严密原因分析及处理  

Analysis and Treatment of the Reasons for the Leakage of the High-pressure Main Steam Valve of a 300 MW Unit

作　　者：张玉群 李洁 ZHANG Yuqun;LI Jie

机构地区：[1]国家能源菏泽发电有限公司,山东菏泽274000

出　　处：《电力系统装备》2024年第6期126-128,共3页Electric Power System Equipment

摘　　要：某电厂3号机组汽轮机高压主汽门采用卧式布置,运行中存在卡涩不严现象,造成汽轮机惰走时间长,高压主汽门关闭时间长。文章分析了该问题产生的原因,通过优化材料结构,解决了高压主汽门卡涩不严的问题。The high-pressure main stop valve of 3 steam turbine is arranged horizontally,there is phenomenon of unsmooth and leakage in operation.Cause the steam turbine idle away for long time and the closing time of the high-pressure main stop valve is unqualified.Analyze the cause of the problem and Solve the problem of loose jamming of high-pressure main stop valve by optimizing material structure.

关 键 词：高压主汽门 卧式布置 惰走时间 关闭时间 

分 类 号：TM621[电气工程—电力系统及自动化]