混流式水轮发电机组固定导叶裂纹原因分析  

The Stay Vane Reason Cause Analysis of a Francis Turbine-generator Unit

作　　者：夏伟[1] 潘罗平[1] 周叶[1] 高庆龙[1] 

机构地区：[1]中国水利水电科学研究院,北京100038

出　　处：《大电机技术》2016年第3期36-40,共5页Large Electric Machine and Hydraulic Turbine

摘　　要：本文针对国内某水电站机组在运行过程中发生的固定导叶裂纹情冴,通过技术探讨,对发生裂纹的固定导叶进行动应力与振动压力脉动特性试验,根据试验结果进行固定导叶裂纹原因分析,找出固定导叶裂纹产生原因,为后续工程解决措施提供技术依据。Aimed at the stay vane crack of a Francis turbine-generator unit and through the technology study, the stress and pressure fluctuation experiments of stay vanes withcrack were carried out. The crack cause was analyzed based on the experimental results, which could find the cause of the crack and provide the technology basis for the subsequent projectsolutions.

关 键 词：水电机组 固定导叶裂纹 卡门涡 

分 类 号：TK730.313[交通运输工程—轮机工程]