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该文分析了在水头变幅较大的工况下混流式水轮机尾水管压力脉动与转轮出口环量及单位参数之间的关系。以三峡水电站水轮机运行工况为模拟条件进行了混流式水轮机尾水管压力脉动试验研究。研究结果表明 ,适当选定混流式水轮机额定参数对减轻尾水管水压力脉动是十分有效的。图 4表 2参 7
This paper analyzes the relationship between the pressure pulsation of the draft tube of a Francis turbine and the outlet ring volume of the runner and the unit parameters under the condition of large head variation. Taking the turbine operating conditions of Three Gorges Hydropower Station as simulation conditions, the pressure pulsation test of draft tube of Francis turbine was carried out. The results show that it is very effective to properly select the rated parameters of Francis turbine to reduce the water pressure pulsation in draft tube. Figure 4 Table 2 Reference 7