词This paper introduces the main energy saving technologies of centrifugal pump.And the author proposes a new energy saving technology which is called prerotation regulated by the inlet guide vane.
本文介绍了离心泵节能的主要技术，并提出了
置导叶预旋调节的节能技术。
This paper introduces the main energy saving technologies of centrifugal pump.And the author proposes a new energy saving technology which is called prerotation regulated by the inlet guide vane.
本文介绍了离心泵节能的主要技术，并提出了置导叶预旋调节的节能技术。
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