随着用水规模的扩大,大多数水厂需要多台水泵并联工作。为了节约成本,水厂通常只在各水泵并联后的出口进行流量及压力数据的测量,给单台水泵扬程—流量曲线的校核带来不便。针对该现实问题,提出了一种参数反推方法,即利用大量不同水泵开关组合条件下总流量、压力的历史数据,在参数取值区间内,采用区域灵敏度分析方法反推每台泵的曲线参数。结果表明,该方法可迅速有效地得到每台水泵的曲线参数,且结果有较高的精确度。 With the expansion of water use, most water plants require multiple pumps to work in parallel. In order to save costs, water plants usually only measure the flow and pressure data at the outlet of each pump in parallel, which brings inconvenience to checking the head-flow curve of a single pump. Aiming at the practical problem, a method of parameter inversion is proposed, which uses the historical data of the total flow and pressure under the condition of a large number of different pump switch combinations. The region sensitivity analysis method is used to inverse the curve of each pump in the parameter value range parameter. The results show that this method can quickly and effectively get the curve parameters of each pump, and the results have higher accuracy.