本文以Excel具有的制图、曲线拟合、高次多项式计算等功能为基础,模拟并联离心泵组的流量、扬程曲线。在已知设计工况点的前提条件下,以离心泵的比例律为理论基础对并联水泵组的调速进行较精确的计算,并应用于工程设计方案中。 Based on the functions of Excel drawing, curve fitting and high-order polynomial calculation, this paper simulates the flow and lift curve of parallel centrifugal pump. Under the precondition of known design condition point, the speed regulation of parallel pump set is more accurately calculated based on the proportional law of centrifugal pump, which is used in engineering design scheme.