引进型超临界汽轮机高压调节阀阀座松动处理  

Treatment of HP Regulation Valve Seat Loose of Imported Supercritical Steam Turbine

作　　者：梁帮平[1] 谢旭阳[1] 陈增春[1] 吴胜杰[2] 邵红军[2] 

机构地区：[1]安徽华电宿州发电有限公司,安徽宿州234101 [2]华能沾化热电有限公司,山东沾化256800

出　　处：《山东电力技术》2013年第6期61-62,76,共3页Shandong Electric Power

摘　　要：华电宿州发电厂采用引进西屋技术生产的630 MW超临界汽轮机。自投产以来,高压调节阀先后发生阀座松动,经返厂处理未能完全消除隐患。通过对高压调节阀阀座松动进行原因分析,并采取可靠现场处理方案,保证机组安全稳定运行。Huadian Suzhou Power Plant has imported a 630 MW supercritical steam turbine by Westinghouse technology.Since the operation,high pressure regulating valve has a valve seat loose,after return to factory processing fails to completely eliminate hidden dangers.Based on the analysis of high pressure regulating valve seat loose cause,and adopted reliable field treatment scheme,to ensure the safe and stable operation of the unit.

关 键 词：高压调节阀 阀座 更换 

分 类 号：TK263[动力工程及工程热物理—动力机械及工程]