叶轮车削方法在水泵节能改造中的应用

Application of turning impeller method in saving water pump energy

通过运用离心泵有关理论计算出合理的叶轮流道出口直径 。

To calculate the reasonable outlet diameter of impeller with the theory of centrifugal pump and analyze the effect of the change of the impeller diameter of pump on the efficiency.