高压调门阀杆脱落原因分析及改进

Cause analysis and improvement from high-pressure control valve stem shedding

汽轮机高压调节阀在机组运行中发生高压调门十字套与阀杆脱落,发现原因在设备设计上存在缺陷,安装工艺不能满足要求,则易发生阀杆脱落事件,并从设备结构上进行加固及改进。

During the trait operation, the steam turbine high pressure control valve has a high pressure valve sleeve and the valve stem off, the reason is the design defects in the equipment, the installation process can not meet the requirements, It is easy to cause the valve stem to fall off, and the equipment structure is strengthened and improved.