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multistage centrifugal pump

When designing a multistage centrifugal pump, a number of factors must be taken into account. Among these are the fluctuating flow rates during start-up and the transient effect of the pump's characteristics in the open-state transient state.

High pressure: flow ratio

Multistage centrifugal pumps and slurry pumps are designed for irrigation and water pressure boosting applications. They can handle pressure reductions of 1 m and are therefore ideal for borehole pumps. The design of a multistage pump consists of a main rotor with six blades for diffusers. This enables the pump to generate higher pressures with each stage.

The core components of a multistage pump are the impeller, the diffuser, the rotor system, and the pump casing. These components can be modeled by using ANSYS Fluent 18.2. A three-dimensional Reynolds time-averaged N-S equation was used to study the internal overflow interface of the centrifugal pump.

The first critical speed of the rotor system is 5270.9 rpm. Its maximum amplitude is 0.033 mm/s. Compared with the rated shaft frequency of 2980 rpm, the first critical speed has a higher amplitude. However, it is not a large difference.

At the rated flow rate, the simulated efficiency was about 1.2 Qd. The simulated efficiency was calculated by using a combination of hydraulic efficiency and turbulence models.

Why choose Hebang Engineering multistage centrifugal pump?

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