fuyangby@126.com
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fuyangby@126.com
86 15188770013
Basic working principle of slurry pump
The slurry pump belongs to a type of centrifugal pump in physics principles. Its essence is a machine that increases the energy of solid-liquid mixture medium by using centrifugal force (rotation of pump impeller), and can convert electrical energy into kinetic and potential energy of the medium. Its specific working process includes the water pressure process and the water absorption process.
Pressure water process: The main working components of a centrifugal pump are the impeller and the casing. The impeller device inside the casing is located on the shaft and connected to the prime mover as a whole. When the prime mover drives the impeller to rotate, the blades in the impeller force the fluid to rotate, that is, the blades do work on the fluid along their direction of motion, thereby increasing the pressure potential energy and kinetic energy of the fluid. At the same time, under the action of inertial force, the fluid flows from the middle to the edge of the impeller, exits the impeller at high speed, enters the extrusion chamber of the slurry pump, and is then discharged through the diffusion tube.
Water absorption process: Due to the flow of fluid towards the edge in the middle of the impeller, a low-pressure zone is formed in the middle of the impeller. When there is sufficient vacuum in this low-pressure area, fluid enters the impeller through the suction chamber under the action of suction pressure (usually atmospheric pressure). Due to the continuous rotation of the impeller, the fluid is continuously discharged and sucked in, forming a continuous operation.
Detailed mechanical analysis of working principle
Mechanism of centrifugal force action
Under the action of centrifugal force, the liquid is thrown from the center of the impeller to the outer edge and gains energy, leaving the outer edge of the impeller at high speed and entering the volute pump casing. In the snail shaped pump casing, the liquid slows down due to the gradual expansion of the flow channel, and converts some of its kinetic energy into static pressure energy. Finally, it flows into the discharge pipeline at a higher pressure and is sent to the required location.
Pressure difference drives liquid flow
When the liquid flows from the center of the impeller to the outer edge, a certain vacuum 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, ensuring the continuous operation of the pump.
The impact of special components on the working principle
The function of the secondary impeller
The secondary impeller is usually located on the back of the main impeller, which can reduce the pressure loss of liquid passing through the main impeller, lower the axial force of the pump, improve the operating conditions of the main impeller, thereby improving the efficiency of the pump, reducing energy consumption, extending the service life, and maintaining the uniformity of the conveyed medium.
The significance of shaft sealing device
The shaft sealing device plays a sealing role between the pump body and the pump shaft, which can prevent air from entering the pump and a large amount of water from leaking out of the pump, ensuring a stable pressure environment inside the pump and ensuring the normal implementation of the working principle.
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(Editor in charge: Slurry Pump https://www.fuyangpumps.com/)
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