Cracking Of Francis Runners During Transient Operation

J.H. Gummer; S. Etter

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Cracking Of Francis Runners During Transient Operation

机译：暂态运行期间弗朗西斯赛跑者的裂缝

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摘要

The authors report on and analyse an unusual instance of runner cracking of a large low-head Francis turbine. The cracks were found to result from high hydraulic dynamic forces during transients; in particular during start-up, in conjunction with normally acceptable weld defects. Results of the diagnostic tests are presented, and recommendations are given for the avoidance of similar cracking in future units.

机译：作者报告并分析了大型低水头弗朗西斯水轮机转轮开裂的异常情况。发现裂纹是由于瞬态过程中较高的水动力引起的。特别是在启动过程中，结合通常可接受的焊接缺陷。介绍了诊断测试的结果，并提出了避免在以后的装置中出现类似裂纹的建议。

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来源
《International Journal on Hydropower & Dams》 |2008年第4期|p.81-85|共5页
作者
J.H. Gummer; S. Etter;
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作者单位

Hydro-Consult Pty Ltd, Australia;

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正文语种 eng
中图分类发电、发电厂;
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Cracking Of Francis Runners During Transient Operation

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