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| 轴流泵出水管断面水流能量测定研究 | |
| 引用本文： | 仇宝云,黄季艳,袁寿其,林海江,冯晓莉,高朝辉.轴流泵出水管断面水流能量测定研究[J].水力发电学报,2005,24(6):104-109. |
| 作者姓名： | 仇宝云 黄季艳 袁寿其 林海江 冯晓莉 高朝辉 |
| 作者单位： | 1. 扬州大学水利学院,扬州,225009;江苏大学流体机械研究中心,镇江,212013 2. 扬州大学水利学院,扬州,225009 3. 江苏大学流体机械研究中心,镇江,212013 |
| 基金项目： | 中国科学院资助项目，江苏省重点实验室基金 |
| 摘 要： | 由于受出流环量和出水弯管的影响,轴流泵出水管内为非对称的复杂螺旋流.测量出水管断面水流压力和三维流速分布,分析常规方法测定断面水流能量误差较大的原因,提出利用五孔探针准确测定断面水流全压分布、积分平均计算断面单位能量的方法.以此水泵出流能量计算水泵扬程、水泵效率和出水管水力损失更为准确. |
| 关 键 词： | 轴流泵 出水管 断面水流能量 测定方法 |
| 收稿时间： | 2005-02-20 |
| 修稿时间： | 2005年2月20日 |
Study on determination of water flow energy in section of outlet pipe of an axial-flow pump |
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| QIU Baoyun,HUANG Jiyan,YUAN Shouqi,LIN Haijiang,FENG Xiaoli,GAO Chaohui.Study on determination of water flow energy in section of outlet pipe of an axial-flow pump[J].Journal of Hydroelectric Engineering,2005,24(6):104-109. | |
| Authors: | QIU Baoyun HUANG Jiyan YUAN Shouqi LIN Haijiang FENG Xiaoli GAO Chaohui |
| Affiliation: | 1. School of Hydraulic Engineering, Yangzhou University, Yangzhou 225009 ; 2. Technical Center of Fluid Machinery Engineering, Jiangsu University, Zhenjiang 212013 |
| Abstract: | Under the influence of circulation and curved pipe of the pump outlet, the flow in outlet pipe of an axialflow pump is non-symmetrical, complex spiral flow. Pressure and 3-dimensional velocity distributions in the pipe section are measured. The causes of lange measuring errors of section flow energy in the outlet pipe by conventional method are analyzed. The total pressure distribution in section flow is measured by micro 5-hole probes and the flow energy is got by integration according to the total pressure distribution, with which the pump water head, pump efficiency and hydraulic losses of the outlet pipes could be calculated more accurately. |
| Keywords: | axial-flow pump outlet pipe flow energy in section determination methods |
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