某汽轮机一次高压调节阀高位卡涩原因分析及应急措施

Steam turbine primary high pressure adjusting steam stigma valve mechanical jam analysis and emergency measures

介绍了湖北华电襄阳发电有限公司#1机组频繁出现突降负荷的异常现象,经过仔细分析和试验,最终发现是高压调节阀开度超过80%后机械卡涩所致。针对该问题,采取了切实可行的应急措施,取得了继续运行的良好效果,最终停机消除了该缺陷。

Frequent load dip was occurred in Xiangyang Power Plant No.1 Unit.After detailed analysis and test,this was caused by mechanical jam after opening of 80%.To solve this problem,emergency measures were taken and ensured operation.This defect was eliminated after shutdown.