阐述了循环 水泵变频调速的节能原理，提出 离心 水泵相似定律的适用性和等效率曲线概念。
Presents the energy saving principle of a frequency-controlled pump and points out the applicability of the law of similitude for centrifugal pumps and the conception of constant efficiency curves.
在本文中，依据水泵相似定律，论述了一种针对于该系统的水泵功率的一种计算方法，并分析了影响变频节能效果的主要因素。
In this article, based on pump's similar theory, a calculation method of the pump power for the system is discussed and the impact of energy-saving effect of conversion factors is analyzed.
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