航天推进技术研究院主办
[1]黄锡龙,陈 炜,王文廷,等.前置不同诱导轮的高速离心泵性能[J].火箭推进,2020,46(02):64-70.
HUANG Xilong,CHEN Wei,WANG Wenting,et al.Performance of high-speed centrifugal pump with different pre-positioned inducer[J].Journal of Rocket Propulsion,2020,46(02):64-70.
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HUANG Xilong,CHEN Wei,WANG Wenting,et al.Performance of high-speed centrifugal pump with different pre-positioned inducer[J].Journal of Rocket Propulsion,2020,46(02):64-70.
前置不同诱导轮的高速离心泵性能
《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]
卷:
46
期数:
2020年02期
页码:
64-70
栏目:
研究与设计
出版日期:
2020-04-28
- Title:
- Performance of high-speed centrifugal pump with different pre-positioned inducer
- 文章编号:
- 1672-9374(2020)02-0064-07
- 分类号:
- V434.21
- 文献标志码:
- A
- 摘要:
- 为研究分流叶片诱导轮及变螺距诱导轮对离心泵水力性能及汽蚀性能的影响,对具有前置诱导轮的高速离心泵进行了试验和数值模拟。外特性试验表明,两种前置诱导轮对高速离心泵效率的影响均不显著,前置分流叶片诱导轮的离心泵扬程相对于前置变螺距诱导轮有显著下降。汽蚀试验表明,小流量工况下前置分流叶片诱导轮的离心泵抗汽蚀性能较优,大流量工况下前置变螺距诱导轮的离心泵抗汽蚀性能较优,其余工况下两者的抗汽蚀性能相当。仿真结果表明,大流量工况下分流叶片诱导轮扬程较低,不能满足离心轮进口能量需求,致使前置分流叶片诱导轮的离心泵汽蚀性能变差。
- Abstract:
- To investigate the effect of splitter blade inducer and variable pitch inducer on the hydraulic performance and anti-cavitation performance of the centrifugal pump, experiment and numerical simulation were carried out for the high-speed centrifugal pump with pre-positioned inducer.External characteristics experiments reveal that pre-positioned splitter blade inducer or variable pitch inducer has little influence on the efficiency of a high-speed centrifugal pump.Compared with the pre-positioned variable pitch inducer, the head of the centrifugal pump with the pre-positioned splitter blade inducer is decreased significantly.The results of the cavitation experiments show that, under the small flow condition, the anti-cavitation performance of the centrifugal pump with pre-positioned splitter blade inducer is improved.Under the large flow condition, the anti-cavitation performance with a pre-positioned variable pitch inducer is improved, and they are similar under other conditions.The numerical simulation results show that, under the large flow condition, the head of the splitter blade inducer is lower observably, which cannot meet the inlet energy requirement of centrifugal impeller, so the anti-cavitation performance of the centrifugal pump with pre-positioned splitter blade inducer is deteriorated.
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备注/Memo
收稿日期:2019-06-16; 修回日期:2019-09-11基金项目:国家重大基础研究项目(613321)作者简介:黄锡龙(1995—),男,硕士生,研究领域为涡轮泵设计
更新日期/Last Update:
2020-04-25