水轮机水力稳定性及尾水管设计的评价与分析

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HL150型水轮机尾水管的频繁破坏,严重威胁着电厂的安全经济运行。本文以水轮机模型试验和原型水轮机在天生桥二级(坝索)水电站的运行监测数据为基础,对HL150型水轮机的水力稳定性进行了评价,进而分析了尾水管金属里衬的破坏原因,阐述了尾水管机构设计的合理性。
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