What Is The Slurry Pump Head?

What Is The Slurry Pump Head?

The lift of a centrifugal pump is also called the pump's head. It refers to the height at which a pump can lift water and can be understood as the energy obtained by a unit weight of fluid passing through the pump. The pump head size depends on the structure of the pump (such as the size of the impeller diameter, the bending of the blade, etc., and the speed).

At present, the pump head cannot be accurately calculated theoretically. Generally, it is measured experimentally to obtain the pump performance curve, and then the slurry pump selection calculation is performed based on the pump performance curve.

Pump head, flow and power are important parameters for examining the performance of a pump.

Note: The lift of a centrifugal pump is different from the lift height (lifting height). The lift height of a pump refers to the vertical height at which the pump sends liquid from a low place to a high place. Only when the inlet and outlet containers of the pump are at 0.1MP, the inlet and outlet pipe diameters are the same, and the pipeline resistance is negligible, the pump head is equal to the lifting height.

What factors are likely to affect the head of?slurry pump china?

slurry pumpis a newly developed Slurry pump. This series of slurry pump has the characteristics of reasonable structure, high efficiency, reliable operation and convenient maintenance. It can be widely used in electric power, metallurgy, mining, coal, etc. , Building materials, chemical industry and other industrial sectors transport corrosive or corrosive slag. Especially suitable for power plant ash and slag transportation, it is an ideal pump for ash and slag removal. It can be used in series in multiple stages within the allowable working pressure range, and its allowable working pressure is 3.6MPa. The overcurrent components are interchangeable. The overall installation dimensions are exactly the same, only the bearing types are different. The transmission part adopts a horizontal middle-open type thin oil lubrication bracket, and is provided with two sets of internal and external water cooling systems.

There are several factors that affect the height of the sandstone ore slurry pump lift:

First, the relationship between the pump and the blade outlet placement angle β2A

When the other values are constant, the larger the blade exit angle, the theoretical head will increase as the flow increases, and the smaller the blade outlet placement angle, the smaller the head of the sandstone slurry pump will be as the flow increases. .

Second, the relationship between the number of pumps and blades.

When the other values are fixed, regardless of the flow loss, the larger the number of blades, the larger the theoretical head. This is because the impeller with a finite blade can give liquid less energy than an impeller with an infinite blade.

Relationship between pump and speed

According to Euler's equation, the higher the speed, the larger the theoretical head.

When the model of the slurry pump is determined, the total head is constant; the lost head mainly comes from the resistance of the pipeline. The smaller the diameter of the pipe, the larger the resistance is, and therefore the larger the lost head is. Instead of increasing the head, it will decrease, which will cause the efficiency of the slurry pump to decrease. Similarly, when the small-diameter slurry pump is pumped by a large water pipe, the actual head of the sandstone slurry pump will not be reduced, but the loss head will be reduced due to the reduction of the resistance of the pipeline, so that the actual head has Has been improved.

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