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1离心系的调整范围调整水泵运行工况的目的是使泵在经济、合理的参数范围内运行。离心系各工况点的装置效率是不一样的。实践表明，对比转速地＜10o的泵，在下列范围内运行比较合适：式中：Q、H——合理使用范围内的流量和扬程Q。、H。——设计点的流量和扬程几＞100的泵在下列
1 Centrifugal system adjustment range The purpose of adjusting the pump operating conditions is to make the pump run in the economic and reasonable parameters. Centrifugal Department of the operating point of the device efficiency is not the same. Practice shows that the pump speed <10o, the following range of operation is more appropriate: Where: Q, H - reasonable use of flow and lift Q. H - Design the point of flow and lift a few> 100 pumps in the following