| 旋喷泵复合叶轮型式及性能对比 |
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| 引用本文： | 王春林,史亚婷,吕亚云,李长军,丁剑. 旋喷泵复合叶轮型式及性能对比[J]. 排灌机械, 2010, 28(2): 103-106,111 |
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| 作者姓名： | 王春林 史亚婷 吕亚云 李长军 丁剑 |
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| 作者单位： | 江苏大学,能源与动力工程学院,江苏,镇江,212013 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 设计了两种型式的旋喷泵常用的复合叶轮,并应用CFD软件对叶轮内部流动进行了数值模拟,得到叶轮流道内压力和相对速度分布.设计时安装合适的短叶片可以减小流道的扩散程度,起到很好的分流、导流效果;通过两个模型泵的预测性能曲线对比分析表明,采用＂S＂形复合叶片,可满足旋喷泵性能的要求.但在2个＂S＂形叶片之间布置2个短叶片时,叶轮流道出现明显的旋涡,且其中一个短叶片附近有回流产生,使得水力损失增大,泵效率较低.而布置1个短叶片时泵的性能更好.
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| 关 键 词： | 旋喷泵 复合叶轮 设计 数值模拟 性能 |
Complex impeller shape and performance comparisons of roto-jet pump |
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| Wang Chunlin,Shi Yating,L Yayun,Li Changjun,Ding Jian. Complex impeller shape and performance comparisons of roto-jet pump[J]. Drainage and Irrigation Machinery, 2010, 28(2): 103-106,111 |
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| Authors: | Wang Chunlin Shi Yating L Yayun Li Changjun Ding Jian |
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| Affiliation: | School of Energy and Power Engineering/a>;Jiangsu University/a>;Zhenjiang/a>;Jiangsu 212013/a>;China |
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| Abstract: | Two shapes of complex impeller of roto-jet pump were designed.CFD numerical simulation was performed in order to investigate the interior flow of the impellers,and obtain the distribution of pressure and relative velocity in the impeller passages.Suitable short blades installation can decrease the degree of diffusion,and the effect of split-flow and diversion is very well.At last,through comparing the performance curves of the two model pumps,the performance was found to meet the designing requirement by us... |
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| Keywords: | roto-jet pump complex impeller design numerical simulation performance |
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