流体机械2017，Vol.45Issue(9)：33-39,7.DOI:10.3969/j.issn.1005-0329.2017.09.007
立式双级自吸泵水力性能分析及内部结构改进
Improvement Design of a Vertical Double-stage Self-priming Pump
张塬东 1张琼 2吴大转 1武鹏1
作者信息
- 1. 浙江大学,浙江杭州 310027
- 2. 杭州川空通用设备有限公司,浙江杭州 311100
- 折叠
摘要
Abstract
In order to solve the problems of low efficiency and high noise level of a vertical double-stage self-priming pump, the new volute chamber and annular sealing of impeller are presented on basis of the traditional self-priming pump under the premise of ensuring the self-priming performance. The internal flow field of the tradition self-priming pump and a novel structure were numerically simulated using the CFD tool, the internal flow structure and performance were analyzed. The matching structures between the volute and the liquid storage chamber were optimized , and the pump performance under annular sealing with different shapes and sizes was also analyzed. The numerical simulation results are in good agreement with the experimental results, the results show that the L type annular sealing, compared to the traditional annular sealing structure, improved the volume efficiency of the self-priming pump obviously; New volute chamber and liquid storage chamber are better matched to reduce the hydraulic loss and improve efficiency and stability of the double-stage self-priming pump.关键词
自吸泵/立式双级泵/密封口环/容积效率/数值模拟Key words
self-priming pump/vertical double-stage pump/annular sealing/volume efficiency/numerical simulation.分类
机械制造引用本文复制引用
张塬东,张琼,吴大转,武鹏..立式双级自吸泵水力性能分析及内部结构改进[J].流体机械,2017,45(9):33-39,7.
