尼那水电站灯泡机组选择与优化

The Selection and Optimization of Nina Bulb Turbine Unit

青海尼那水电站Ｈｍａｘ＝１８．１ｍ，可选用贯流灯泡式水轮发电机组或轴流转浆式水轮发电机组。由于灯泡机组具有如下技术特点：较高的能量指标、平面尺寸小开挖量小、运行性能好，尤其是效率比轴流机组高５％左右，具有明显的技术经济优势。所以，应当选用灯泡机组，并进一步作好设计优化工作，以节省建设投资。

The maximum head of Nina hydropower plant is 18. 1 m and the type of turbine could select bulb turbine unit or Kaplan turbine unit. The bulb turbine possesses these characteristics: higherpower value, smaller plane sire and less excavation, good operation property, the maximum efficiencyof bulb turbine is higher 5% than Anplan turbine, having obviously technical and economical advantages. Therefore it must select bulb turbine unit and further optimize all design work in order to economize project funds.