'Three' chemical centrifugal pump power loss situation shows!

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for chemical centrifugal pump in production use, after a period of time the user feel not start using centrifugal pump performance parameters of good, work efficiency loss, what reason is caused? Chemical centrifugal water pump power losses 'three' : there are three kinds of power loss within the chemical centrifugal pump loss: hydraulic loss, volumetric loss, mechanical loss. 1, the hydraulic loss: in the pump body of fluid flow, if the flow is smooth, the resistance is small, rough passage, resistance became larger flow into the rotation of the impeller or water flow out of the impeller also caused by collision and the vortex loss is produced. Above two kinds of loss is called the hydraulic loss. 2, volume loss: the impeller is rotating, and water pump body is a static fluid in a small gap between the impeller and the pump body back into the impeller of the imported; In addition, some fluid from balance hole back into the impeller imports, or from the shaft seal leakage. If it is a multistage pump, from part of balance disc to leakage. These losses, volume loss; 3, mechanical losses: shaft and bearing in turns to, filler, such as friction, turn impeller in the pump body, impeller cover plate to fluid friction, before and after are part of the power consumption, which caused by mechanical friction loss, always become mechanical loss.

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