流体机械2013，Vol.41Issue(1)：49-52,34,5.DOI:10.3969/j.issn.1005-0329.2013.01.011
叶片进口边位置对双吸离心泵性能的影响分析
Research on Influence of Blade Inlet Position of Double-suction Pump Performance
摘要
Abstract
The internal flow field of a domestic double suction pump is numerical simulated by CFD software and the impeller hydraulic design is inspected by one - dimensional theory. Without changing the original design of the impeller, move the blade inlet edge backward three times respectively, constructed impellers named Al, A2 and A3. The calculation results show that; the efficiency of impeller A2 is higher than Al's and A3's in any condition, and the best efficiency under the optimal conditions of impeller A2 is 5.8% higher than the original impeller, high efficiency area was also significantly widened. The research indicates that; larger than the recommended value of 1 ~ 1.3, it is not that the smaller the ratio of the import and export of effective area between blades, the better of the pump performance. The position of the blade inlet edge has an important influence on the performance of the double - suction pump. The inlet flow state can improved effectively by changing the inlet edge position of the impeller.关键词
双吸泵/CFD/叶片进口位置/水力性能Key words
double-suction pump/CFD/position of the blade inlet/hydraulic performances分类
机械制造引用本文复制引用
杨军虎,王玥,郭斌,孟瑞锋..叶片进口边位置对双吸离心泵性能的影响分析[J].流体机械,2013,41(1):49-52,34,5.基金项目
国家自然科学基金项目(51169010) （51169010）
