通过改变参数、改变工况点的多组试验选择出定型的最优模型参数,然后根据射流泵相似原理,研究分析模型与原型射流泵的相似条件.设计确定出原型射流泵最优参数.再通过原型泵的试验,分析各参数的差异.确定出适用于云南几个电站的最优原型射流泵.经应用验证取得较好效果. The optimal model parameters of the model were selected by changing the parameters and changing the working point, and then the similar conditions of the model and prototype jet pump were studied according to the similar principle of the jet pump. Through the prototype pump test, the difference of each parameter is analyzed, and the optimal prototype jet pump suitable for several power stations in Yunnan is determined, and the better result is obtained through application verification.