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Characteristics and application of vortex pump
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qizhen0926
Posted 2018-10-23 4:50 AM (#246514)
Subject: Characteristics and application of vortex pump


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The structure of a vortex pump is mainly composed of an impeller (a disk with many radial blades on the outer edge), a pump body and a pump cover. A circular flow channel is formed between the pump body and the impeller, and the liquid enters from the suction inlet, gains energy through the rotating impeller, and discharges from the outlet. The suction inlet and the discharge outlet are separated by a baffle and a small gap between the baffle and the impeller, thereby separating the suction inlet and the discharge outlet.

Because the impeller rotates, the liquid in the impeller and the passage produces circular motion. The circular velocity of the liquid in the impeller is too high than the circular velocity of the liquid in the passage, that is, the centrifugal force of the liquid in the impeller is large, forming a circular flow from the impeller to the flow. This flow is similar to a vortex, hence the name of the vortex pump. The vector of this vortex is perpendicular to the axial plane, referring to the longitudinal length of sound along the channel, so it is also called a longitudinal vortex.

The liquid enters the runner from the impeller blade and transfers part of the kinetic energy obtained from the blade to the liquid in the pump runner.
This gives the liquid a momentum along the rotation direction. At the same time, a part of the lower energy liquid enters the impeller, the liquid depends on the longitudinal vortex in the passage every time through the impeller, to obtain energy, which is why the head of the vortex pump is higher than the general open-chip pump.
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