流体机械

2005, (12) 36-39

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空压机叶轮破裂原因分析
Analysis on Failure for Cracking Centrifugal Compressor's Impeller

侯峰;徐宏;关凯书;叶国庆;
HOU Feng,XU Hong,GUAN Kai-shu,YE Guo-qing(East China University of Science and Technology,Shanghai 200237,China)

摘要(Abstract):

针对某石化公司离心压缩机叶轮多次发生开裂、掉块等故障以及裂纹形成机理进行了分析。分析结果表明了叶轮开裂原因系疲劳开裂,叶轮焊接缺陷产生了焊接弧坑,造成表面应力集中,气流激振加速了裂纹扩展。
Cracking failure of centrifugal compressor's impellers was analyzed.The welding craters in the impellers led to stress concentration.The unsteady gas flow accelerated the development of cracks in the impeller.

关键词(KeyWords): 离心压缩机;开裂;疲劳;振动
centrifugal compressors;crack fatigue;vibration

Abstract:

Keywords:

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作者(Authors): 侯峰;徐宏;关凯书;叶国庆;
HOU Feng,XU Hong,GUAN Kai-shu,YE Guo-qing(East China University of Science and Technology,Shanghai 200237,China)

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