迪什林水电站转轮动应力测试及裂纹原因分析  

Dynamic Stresses Measurement and Cracks Analysis of Runner for Tishrin Hydropower Plant

作　　者：潘罗平[1] 唐澍[1] 唐拥军[1] 张海平[1] 桂中华[1] 

机构地区：[1]中国水利水电科学研究院机电所,北京100038

出　　处：《大电机技术》2008年第6期36-40,共5页Large Electric Machine and Hydraulic Turbine

摘　　要：开展水轮机转轮动应力现场测试是叶片裂纹原因分析的重要手段之一。由于轴流转桨式水轮机转轮结构复杂,开展转轮叶片动应力现场测试的难度也相对较大。本文针对Tishrin水电站轴流转桨式水轮机转轮叶片裂纹问题,对其2号机进行了全面的转轮动应力和机组稳定性试验研究,介绍了Tishrin水电站轴流转桨式水轮机转轮动应力现场试验的试验方法及有关试验结果,对转轮叶片产生裂纹的原因进行了分析探讨。本文是国内外首次成功开展大型轴流转桨式水轮机转轮叶片动应力测试,具有一定的科研和应用价值。Measurement of dynamic stresses in runner blade is one of the most important methods for cracks research. Dynamic stresses measurement of Kaplan turbine is more difficult because of its more complex structure. The test of runner dynamic stresses and unit stability of Tishrin Unit 2# were carded out in order to solving the problem of blade cracks. The measurement methods and related measurement results are presented and the cause of blade cracks is analyzed in the paper. This is the first time for measurement dynamic stresses of Kaplan turbine successfully at home and abroad.

关 键 词：轴流转桨式水轮机 转轮 叶片裂纹 动应力 现场测试 

分 类 号：TK733.3[交通运输工程—轮机工程]