油库灌装系统中变频油泵的选择方法

介绍在多个灌装口的油库灌装系统中，在采用变频调速与定速泵联合运行灌车的状态下，变频油泵的选择方法。通过详细分析离心泵在定速、调速、单泵、多泵并联、调速与定速并联情况下的运行工况，指出在混合灌装系统中，采用同型号油泵和不同型号油泵依据性能曲线高效段Q、H参数选泵，可使系统高效率运行。

How to choose variable frequency pumps for filling system

For filling system with many filling tubes, both variable frequency pumps and constant speed pumps are usually introduced to filling tankers. Under the circumstance, selection of pumps is very important. The method to select pumps is presented through analyzing the status when centrifugal pump run under various circumstances such as at constant speed, variable speed, constant speed and variable speed in parallel, or with single pump and multiple pumps in parallel.