| 离心泵启动过程瞬态特性与流动的实验研究 |
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| 引用本文： | 李志峰,吴大转,戴维平,王乐勤.离心泵启动过程瞬态特性与流动的实验研究[J].工程热物理学报,2010(12). |
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| 作者姓名： | 李志峰 吴大转 戴维平 王乐勤 |
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| 作者单位： | 浙江大学化工机械研究所高压过程装备与安全教育部工程研究中心; |
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| 基金项目： | 国家自然科学基金项目(No.10532010;No.50776077;No.50979095;No.50906074); 中国博士后科学基金(No.20100471697) |
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| 摘 要： | 为获得离心泵在启动过程中的瞬时性能和内部非定常流动状态,建立了离心泵瞬态性能测试实验台。分别对启动过程的瞬时流量、扬程、转速和功率进行采集,同时采用PIV测试系统对叶轮上部二维瞬时速度矢量场进行了拍摄和记录。给出了三种转速下的瞬时外部性能和内部流动测试结果,并对瞬时外部性能和内部瞬时流动结构的演化进行了对比说明,同时分析和讨论了实验误差产生的原因。
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| 关 键 词： | 离心泵 启动 瞬态流动 PIV测试 |
EXPERIMENTAL STUDY ON THE TRANSIENT CHARACTERISTICS AND FLOWS IN A CENTRIFUGAL PUMP DURING STARTING PERIOD |
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| LI Zhi-Feng WU Da-Zhuan DAI Wei-Ping WANG Le-Qin.EXPERIMENTAL STUDY ON THE TRANSIENT CHARACTERISTICS AND FLOWS IN A CENTRIFUGAL PUMP DURING STARTING PERIOD[J].Journal of Engineering Thermophysics,2010(12). |
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| Authors: | LI Zhi-Feng WU Da-Zhuan DAI Wei-Ping WANG Le-Qin |
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| Institution: | LI Zhi-Feng WU Da-Zhuan DAI Wei-Ping WANG Le-Qin (Institute of Chemical Machinery of Zhejiang University,Engineering Research Center of High Pressure Process Equipment and Safety of Ministry of Education,Hangzhou 310027,China) |
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| Abstract: | In order to obtain the transient characteristics and internal unsteady flow structures in a centrifugal pump during startup period,a centrifugal pump transient performance test rig was built up.The Instantaneous flow-rate,head,rotational speed and power were tested.Simultaneously,the two-dimensional instantaneous velocity evolutions on the upper space of the impeller were recorded using the particle image velocimetry(PIV) test system.Both the transient explicit performances and corresponding internal flow t... |
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| Keywords: | centrifugal pump start up transient flow particle image velocimetry(PIV) test |
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