A double-suction swirl pump

Abstract

The invention relates to a novel double-entry vortex pump, which solves the problems of low efficiency and unstable impeller operation in conventional vortex pumps, and by improving the chamber structure of a pump body and adopting long and short blades on a double-entry impeller of the pump at the same time, the efficiency of the double-entry vortex pump is increased to a certain degree and the unobstructiveness of flow passages between the blades is ensured. The rotation of the impeller ensures that the acting energy of centrifugal force applied on medium is increased, the medium getting in between the blades is pushed by the blades to move along with the impeller, the medium near the top of the outlet of the impeller is formed into through flow because of high centrifugal force, the medium at the middle of the impeller is formed into circulating flow, the through flow flows out via the outlet of the pump chamber, and certain lift is generated; the solid particles and fibers in the medium obtain energy under the action of the circulating flow, and thereby the purpose of conveying complex medium or fluid containing impurities is achieved. While inheriting the characteristics of the vortex pump, the pump also has the characteristics of the double-entry pump; moreover, because the shaft is eccentrically mounted, when the impeller operates, stress is nearly balanced, and thereby operation is more stable.

Description

technical field [0001] The invention belongs to the technical field of pumps, and mainly aims at the problems of low efficiency, unstable rotation and unsmooth fluid in blades of traditional swirl pumps. By changing the structure of the inner cavity and impeller of the swirl pump, its efficiency is greatly improved. Background technique [0002] Double-suction swirl pumps are mostly used to pump complex media or fluids containing impurities, such as two-phase fluids containing garbage, short fiber materials or feces, but at the same time it also ensures the efficiency of the pump, the pump has good suction performance, and has good anti-cavitation performance , can pump liquids with high gas content, and can also pump high concentrations. Compared with other impurity pumps, the swirl pump has good non-clogging performance, and can pass solid particles that are about the same diameter as the pump outlet, but it has negative effects on the transported materials. Certainly des...

AI Technical Summary

Problems solved by technology

Most of the impellers of swirl pumps are open radial impellers, the manufacturing process is simple, and the impeller flow channel is easy to process, but there is a balance problem in the running impeller, and the operation of the impeller is not stable enough. The traditional double-suction swirl pump needs certain optimization.

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