流体机械2011，Vol.39Issue(6)：17-20,16,5.DOI:10.3969/j.issn.1005-0329.2011.06.005
叶片包角对可逆式泵性能影响的数值研究
Numerical Research of Blade Wrap Angle on the Performance of Reversible Pump
摘要
Abstract
Pump as turbine (PAT) technology which uses reverse running pump for high pressure fluid power recovery purpose, is one of the main research field of energy conservation technology. Blade wrap angle is one of the main parameters in the reversible pump hydraulic design. The effect of blade wrap angle on the performance of a centrifugal pump with its specific speed of 72 working in pump and pump as turbine mode was carried out, using numerical method. The research results show that: there is a best blade wrap angle for the reversible pump to reach its highest efficiency. In pump mode, the flow versus head curve becomes increasingly steep and the pump shaft power gradually decreases with the increase of blade wrap angle. In turbine mode,there is a rise of the turbine's head, shaft power and the flow versus head, flow versus shaft power curves become increasingly steep with the increase of blade wrap angle. The flow field analysis shows that the flow within the impeller is improved and the flow field distribution becomes increasing uniform with the increase of blade wrap angle. This research results could provide guidance to the design of reversible pump impeller.关键词
可逆式泵/叶片包角/数值研究/流场分析Key words
reversible pump/ blade wrap angle/ numerical research/ flow field analysis分类
机械制造引用本文复制引用
杨孙圣,孔繁余,陈斌..叶片包角对可逆式泵性能影响的数值研究[J].流体机械,2011,39(6):17-20,16,5.基金项目
国家科技人员服务企业行动项目(2009GJC10007) （2009GJC10007）
