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Centrifugal vs. Positive Displacement Pumps & What Are Mag Drive Pumps?
参考中译:离心机与正位移泵以及磁力驱动泵是什么？

刊名：	Pumps & Systems
作者：	HYDRAULIC INSTITUTE
刊号：	784B0029
ISSN：	1065-108X
出版年：	2024
年卷期：	2024, vol.32, no.9
页码：	110-111
总页数：	2
分类号：	TH3
语种：	eng
文摘：	Centrifugal pumps and positive displacement pumps have differing hydraulic designs, which results in unique application considerations that affect which type is best for an application. Centrifugal pumps utilize a rotating impeller to impart kinetic energy to the applicable fluid, and the fluid exits the impeller radially. The performance of a centrifugal pump is such that the flow rate is variable as a function of system differential pressure or total head. This means it can achieve variable flow while operating at a constant rotational speed (Image 1). Additionally, centrifugal pumps shear the liquid they are pumping; therefore, their performance is significantly affected by the liquid viscosity.
参考中译：	离心机和正位移泵具有不同的液压设计，这导致了独特的应用考虑因素，从而影响哪种类型最适合应用。离心机泵利用旋转的推进器将动能传递给适用的流体，并且流体沿放射状离开推进器。离心机的性能是流量根据系统压差或总水压的函数而变化的。这意味着它可以在以恒定旋转速度运行的同时实现可变流量（图1）。此外，离心机会剪切它们泵送的液体;因此，它们的性能受到液体粘性的显着影响。