一、概述在化工生产上选用一台既能满足生产任务,又经济合理的离心泵,总是根据生产要求(实际压头H和实际送液能力Q),参照离心泵的性能来决定的。离心泵的性能可用特性曲线图表示,即H—Q、N—Q、η—Q等关系曲线。用实验方法来测定离心泵特性曲线在化工生产上是十分普遍的,利用袖珍 First, an overview of the selection of a chemical production both to meet the production tasks, but also economical and reasonable centrifugal pump, always based on production requirements (actual pressure head H and actual liquid delivery capacity Q), with reference to the performance of centrifugal pump to decide. Centrifugal pump performance curve can be used that characteristics, that is, H-Q, N-Q, η-Q relationship curve. Experimental methods to determine the characteristics of centrifugal pumps in chemical production is very common, the use of pocket