龙伟华,张方明,应坚定
LONG Weihua,ZHANG Fangming,YING Jianding

• 1:浙能台州发电厂

摘要(Abstract)：

针对某型号超临界600 MW汽轮机高压调阀多次出现阀盖与阀壳结合面漏汽的问题,结合解体检查情况对漏汽原因进行深入分析,制定处理方案。通过金属缠绕垫改型更换、密封面修磨、阀盖螺栓紧固等检修改进措施,保证了结合面的长效密封,彻底解决了漏汽问题。
Aiming at steam leakage happened many times between valve deck and valve casing in high pressure valve in one 600 MW supercritical turbine and in combination with disassembling inspection condition,this paper performs an in-depth analysis on steam leakage causes and works out treatment scheme. Through adoption of maintenance improvement measures such as replace and modify spiral wound gasket, burnish sealing face and fasten the valve deck, the long-term sealing of joint surface is guaranteed and the steam leakage is thoroughly eliminated.

关键词(KeyWords)： 高压调阀;密封面;漏汽;工艺改进
high-pressure control valve;sealing surface;steam leakage;process improvement

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 龙伟华,张方明,应坚定
LONG Weihua,ZHANG Fangming,YING Jianding

DOI: 10.19585/j.zjdl.2014.08.009

参考文献(References)：

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