考虑工况点变化的水泵选择方法

A Research on Method of Selection of Centrifugal Pump under the Variation of Operating Mode

根据离心泵工况调节的基本原理和方法，分析了水泵运行中工况点变化的原因及其影响。结合水泵工况调节计算中的一个错例，探讨了水泵选择计算的正确方法以及几个值得注意的问题。

With reference to the basic principles and methods of selection of centrifugal pump equipment, the paper makes an analysis on the causes and effects of variation of operating mode. In addition, through rectifying a mistake related to calculation of pump parameters in operating mode control, the paper digs into the correct calculation method and some related issues that are worthy of our attention on the method of pump selection.