澜沧江侧格水电站机组选型研究

澜沧江侧格水电站最大水头28.7 m，按照规范，装设贯流式和轴流式机组均可行。由于贯流式机组具有过流量大、效率高、空蚀小、投资省等优点，在充分考虑技术的可靠性和经济合理性的情况下，确定选用贯流式水轮发电机组。以侧格水电站为例，对于在较高水头条件下所采用的水轮发电机组的制造难度、灯泡体的强度以及推力轴承的设计等几个方面的计算方法作了概略性的介绍，并将该电站与国内目前已建或在建的最大水头超过20 m的大中型灯泡贯流式水电站相比较，根据比较结果，认为澜沧江侧格水电站装设贯流式水轮发电机组在技术上是可行的。

Research on type selection of generation unit for Cege Hydropower Station on Lancang River

The maximum head of Cege Hydropower Station on Lancang River is 28.7m.Both tubular turbine-generator unit and axial turbine-generator unit are feasible according to the norm.The tubular turbine-generator unit is selected with the consideration of the technology reliability and economical rationality,because this kind of unit has advantages of larger passing-flow,higher efficiency,smaller cavitation and less investment.With the case of Cege Hydropower Station,the manufacture difficulty coefficient of hydro-generator unit and the calculation methods of the bulb body intensity as well as the design of thrust bearing are introduced for higher head.The result shows that the tubular turbine-generator set is technically feasible after comparing with some large and medium-sized bulb tubular hydropower stations built or being built in China.