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Methods of making centrifugal pump impellers and/or diffusers, and centrifugal pumps incorporating such impellers and/or diffusers
Methods of making centrifugal pump impellers and/or diffusers, and centrifugal pumps incorporating such impellers and/or diffusers
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机译:制造离心泵叶轮和/或扩散器的方法,以及装有这种叶轮和/或扩散器的离心泵
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摘要
A technique improves the pumping performance of a centrifugal pump in a cost-effective manner. The centrifugal pump comprises a pumping component having one or more vanes defining fluid flow paths. A passage is formed through at least one vane such that an end of the passage is exposed to a low energy flow, i.e. secondary flow, region. Each passage enables the flow of a small amount of fluid from the low energy region to an opposite side of the vane to reduce the secondary flow effects and improve pumping efficiency.
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