Centrifugal pump flow regulation methods
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This post was last edited by Qingfeng Huanying on 2018-1-17 at 16:06. Methods for adjusting the flow rate of centrifugal pumps: Methods for adjusting the flow rate of centrifugal pumps http://www.360doc.com/content/16/0610/14/32744956_566490890.shtml
It mainly involves cutting the impeller and changing the speed, as well as adjusting the outlet valve and bypass valve
According to the law of similarity, it can be seen that flow rate is proportional to rotational speed and to the cube of the impeller diameter. When studying the flow rate solely in terms of the pump itself, changing the rotational speed and the impeller diameter are the main methods of adjustment
Three types: outlet throttling, frequency conversion, and bypass regulation
Frequency conversion is the most efficient method of regulation~~~