Mixed-flow pump impeller design based on the controllable blade load distribution

被引：0

作者：

Han Y. ^{[1
]}

Tan L. ^{[1
]}

Liu Y. ^{[1
]}

机构：

[1] Department of Energy and Power Engineering, State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing

来源：

Qinghua Daxue Xuebao/Journal of Tsinghua University | 2022年 / 62卷 / 12期

关键词：

controllable blade load; experimental investigation; impeller design; mixed-flow pump; numerical simulation;

D O I：

10.16511/j.cnki.qhdxxb.2022.26.031

中图分类号：

学科分类号：

摘要：

Vane pumps convert mechanical energy into fluid energy with the impeller being the key component. This paper designed a flow pump impeller using iterative solutions of direct and inverse problems. The velocity moment distribution along the axial streamline is controlled by a quartic function determined by the midpoint and outlet slope of velocity moment. Analyses of the influence of the velocity moment distribution on the impeller performance show that increasing the midpoint of velocity moment increases the load from the blade inlet to the middle which improves the pump work. The midpoint of velocity moment mainly affects the relative velocity distribution near the blade tip and the axial velocity in the middle of the impeller. The design was evaluated in energy and cavitation experiments. The high-efficiency operating range of the pump is flat and wide with a highest efficiency of 82.17%. The cavitation specific speed is 1 289. © 2022 Press of Tsinghua University. All rights reserved.

引用

页码：1930 / 1937

页数：7

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