Analysis of Pressure Generation Principle of Slurry Pump

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• TIME : 2025-03-11

The effect of centrifugal force

When the impeller of the slurry pump rotates at high speed under the drive of the electric motor, the blades in the impeller force the fluid (solid-liquid mixture) to rotate. In this process, the blades do work on the fluid, increasing its kinetic and potential energy. Under the action of centrifugal force, the fluid is thrown from the center of the impeller to the outer edge, and its velocity gradually increases, thereby obtaining energy.

Conversion of kinetic energy into static pressure energy

When the fluid leaves the outer edge of the impeller and enters the volute pump casing, due to the gradual expansion of the flow channel inside the pump casing, the velocity of the fluid begins to slow down, and some kinetic energy is converted into static pressure energy. This process gradually increases the pressure of the fluid, which eventually flows into the discharge pipeline at a higher pressure and is transported to the desired location.

Vacuum formation and continuous suction

When fluid flows from the center of the impeller to the edge, a certain vacuum zone is formed at the center of the impeller. Due to the pressure above the liquid level in the storage tank being greater than the pressure at the pump inlet, the liquid is continuously pressed into the impeller, thereby achieving a continuous suction and discharge process. This process ensures the continuous operation of the slurry pump.

The influence of structural design on pressure

The structural design of slurry pumps also has a significant impact on their pressure generation. For example, the pump head usually adopts a double-layer pump casing structure, which not only enhances the wear resistance and corrosion resistance of the pump, but also effectively reduces leakage, thereby helping to maintain stable outlet pressure. In addition, a reasonable shaft seal design and optimized bracket structure can also help reduce friction losses, improve the overall efficiency of the pump, and further affect the generation of pressure.

summarize

In summary, the pressure generation of the slurry pump mainly relies on the action of centrifugal force. The fluid obtains kinetic energy through the high-speed rotation of the impeller, and then some of the kinetic energy is converted into static pressure energy in the snail shaped pump casing, and finally discharged in a high-pressure state. Meanwhile, reasonable structural design also plays a key role in stabilizing and improving pressure.

　　This article originates from https://www.fuyangpumps.com/news/365.html. Please indicate the source when reprinting.

(Editor in charge: Slurry Pump https://www.fuyangpumps.com/)

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