| 贯流泵装置模型试验转轮出水口压力脉动研究 |
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| 引用本文： | 郑源,张飞,蒋小欣,张金龙.贯流泵装置模型试验转轮出水口压力脉动研究[J].流体机械,2007,35(1):1-3,7. |
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| 作者姓名： | 郑源 张飞 蒋小欣 张金龙 |
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| 作者单位： | 1. 河海大学,江苏南京,210098
2. 苏州市水利局,江苏苏州,215011 |
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| 摘 要： | 结合某贯流泵装置模型试验,研究了转轮出水口的压力脉动情况.研究表明,转轮出水口压力脉动的统计参数绝对值随着扬程的提高而增大,相对值在最优效率区时最小;出水口存在与转频相关的脉动.一定叶片角度,不同扬程下,当流量小于该角度下最高效率点的流量时,出水口出现低频压力脉动,脉动表现为某个低频及其倍频.
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| 关 键 词： | 贯流泵 压力脉动 频谱分析 统计分析 |
| 文章编号： | 1005-0329（2007）01-0001-03 |
| 修稿时间： | 2006-05-222006-06-19 |
Research on Outlet Pressure Pulsation of Reverse Operation in Tubular Pump Model Experiment |
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| ZHENG Yuan,ZHANG Fei,JIANG Xiao-xin,ZHANG Jin-long.Research on Outlet Pressure Pulsation of Reverse Operation in Tubular Pump Model Experiment[J].Fluid Machinery,2007,35(1):1-3,7. |
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| Authors: | ZHENG Yuan ZHANG Fei JIANG Xiao-xin ZHANG Jin-long |
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| Affiliation: | 1. Hohai University, Nanjing 210098, China;2. Water Affairs Bureau of Suzhou City, Suzhou 215001, China |
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| Abstract: | Combining one tubular model pump test, comprehensively research was performed on runner outlet pressure pulsation in pump model experiment, which demonstrated that absolute values of statistical parameters became bigger and bigger with the water head increased, while the relative values was smallest in opium efficiency area. At the outlet, there was pressure pulsation with relation to rotational speed. Also circumfluence occurred during the discharge changed,lower than the highest efficiency discharge in respective angle. |
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| Keywords: | tubular pump pressure pulsation frequency analysis statistical analysis |
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