Analysis Of The Causes Of Power Loss In Slurry Pumps

When the liquid transported by the slurry pump flows in the pump, it usually generates three types of losses: hydraulic loss, volume loss and mechanical loss.

Hydraulic loss of slurry pumps When the liquid flows in the pump, the resistance varies due to the different smoothness of the flow channel

In addition, when the fluid enters and exits the impeller, collisions and vortices will occur, which will also cause energy loss

These two losses are collectively referred to as hydraulic losses.

Volumetric loss of slurry pumps Because the pump body is stationary, when the impeller rotates in the pump body, due to the existence of gaps

In this way, a small part of the high-pressure liquid at the impeller outlet will automatically flow back to the impeller inlet

It is also possible that a part of the liquid will flow back to the impeller inlet from the balance pipe

Or leak from the seal, these losses are collectively referred to as volumetric losses.

Mechanical loss of slurry pump Because the pump will rub against the bearings, packing, etc. when it is running, and the impeller runs in the pump body

Its front and rear covers will also rub against the liquid

The energy loss caused by these frictions is collectively called mechanical loss

The above is the internal power loss of the slurry pump

So how to improve the efficiency of the slurry pump?

In order to reduce the hydraulic loss, volume loss and mechanical loss of the pump

The pump should work within the use range as much as possible during operation

Due to wear, the gap increases, which will increase leakage and reduce pump efficiency

So the pump should be repaired in time if there is a problem and keep it in good lubrication state

The tightness of the packing gland and other fasteners should be appropriate to reduce energy consumption and improve the use efficiency of the pump