Working range and application field of multistage centrifugal pump

Category: Water pump knowledge

2024-04-28

Multi-stage centrifugal pump is composed of multiple centrifugal pump impellers in series, due to the particularity of its structure, with high head and stable flow characteristics, in the industrial production process, multi-stage centrifugal pump is usually used to transport high head, small and medium flow of liquid, such as compressed air, irrigation water and drainage.

多级离心泵的工作范围及其应用领域

Working range of 1. multistage centrifugal pump

1. Head

The lift range of multi-stage centrifugal pumps is generally much larger than that of single-stage centrifugal pumps, which can reach more than 1000 meters. However, due to the different head of multi-stage centrifugal pumps of different brands and models, the choice should be made according to specific needs.

2. Flow

Multi-stage centrifugal pumps have a wide range of flow rates and can generally meet different flow requirements from 0.5 m/h to 1000 m/h. It should be noted that the output flow of the multi-stage centrifugal pump is different from the input flow, and should be selected according to the specific selection instructions.

3. Medium

Multistage centrifugal pump can transport a variety of liquids, including water, sewage, chemicals and so on. Different media will have different requirements for the material and sealing structure of the pump, and the corresponding material should be selected according to the specific medium.

4. Temperature

The allowable medium temperature range of multi-stage centrifugal pump is generally between -20 ℃ and 120 ℃, but there are also some models that can handle high temperature liquids, which should be selected according to the specific model.

Application field of 2. multistage centrifugal pump

Multistage centrifugal pump is widely used in various fields, such as chemical industry, papermaking, water treatment, water supply and so on, because of its high efficiency, energy saving and stability. In the chemical industry, multi-stage centrifugal pumps are mainly used to transport various chemical substances, such as acid, lye and so on. In the paper industry, multi-stage centrifugal pumps are mainly used to transport pulp and paper machine pulp. In the water treatment industry, multi-stage centrifugal pumps are mainly used for sewage treatment and water supply.

Structural characteristics of 3. multistage centrifugal pump

The main feature of multistage centrifugal pump is in a single pump body structure to achieve high head high flow transport, its structure is more complex, generally by the inlet section, impeller and outlet section. The inlet section generally adopts a double-inlet or multi-inlet structure to reduce the flow resistance at the inlet. The impeller generally adopts a multi-stage structure to increase the pressure. The outlet section generally adopts the structure such as guide vane or elbow to realize the flow output.

4. Conclusion

Multistage centrifugal pump is a highly efficient and energy-saving fluid transportation equipment with a wide range of displacements and is suitable for various fields. In the purchase of multi-stage centrifugal pump, according to the working conditions, the use of occasions and other aspects of comprehensive consideration, in order to choose the right product.

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