08
2023
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02
Mining wear-resistant multistage centrifugal pump structure characteristics
Author:
Mining wear-resistant multistage centrifugal pump is a pump with two or more impellers. The usual structures are worm-shell multistage pumps and segmented multistage pumps. The structural features of the center-open multistage centrifugal pump generally adopt the center-open structure to facilitate maintenance, and is conducive to the symmetrical arrangement of the impeller, reduce, the axial force acting on the rotor. However, this structure is poor craftsmanship: the more stages, the more complex the shape of the pump body and cover; . The larger the size of the pump, especially between the stage and the stage need to configure some inter-stage flow channel, so that the shape of the pump is more complex. And when the number of stages is high, the head is higher, the sealing of the open surface is more difficult. Based on these factors, the wide application of this structure is somewhat limited. The structure characteristics of mining wear-resistant multistage centrifugal pump are compact, which is conducive to improving the degree of standardization and generalization. Since the head of this structure depends on the number of pump stages, the head range of this multistage pump model is wide. The material of mining wear-resistant multistage centrifugal pump is generally ductile iron.
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