| 引用本文: | 林鹏程,柏 周,汤方平,等.不同导叶张数对双向竖井贯流泵装置影响的受力分析[J].灌溉排水学报,0,():-. |
| LIN Pengcheng,BAI Zhou,TANG Fangping,et al.不同导叶张数对双向竖井贯流泵装置影响的受力分析[J].灌溉排水学报,0,():-. |
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| 摘要: |
| 【目的】研究竖井贯流泵装置在不同导叶数下影响下的的受力情况。【方法】本文采用CFD方法，以某工程双向竖井贯流泵装置为研究对象，基于RNG k-ε湍流模型，对不同导叶片数的双向泵装置在不同流量工况下进行数值计算和试验研究。【结果】正反向运行情况下，不同导叶数下泵装置轴向受力平均值接近，当导叶数与叶片数成倍数关系时，轴向力脉动峰峰值显著增大，影响装置安全运行;叶轮径向受力均较小，可以忽略对工程的影响。将导叶数设置为偶数时，可降低导叶受到的径向合力。 |
| 关键词: 导叶数;受力分析;双向竖井贯流泵装置;数值模拟;模型试验 |
| DOI： |
| 分类号:TH312 |
| 基金项目:国家自然科学(51376155)；江苏省自然科学(BK20190914)；江苏省高校自然科学研究项目(19KJB570002)；扬州市自然科学(YZ2018103)；江苏省水利科技项目(2017031)；江苏省高校优势学科建设项目(PAPD) |
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| The force analysis of the influence of different guide vanes on the bidirectional shaft tubular pump device |
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LIN Pengcheng,BAI Zhou,TANG Fangping,et al
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1.Yangzhou University;2.Shuyang County Water Resources Bureau in Jiangsu Provinces;3.Qiantang basin center of Zhejiang Province;4.Zhejiang water conservancy and hydropower construction holding development company
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| Abstract: |
| 【Objective】The force of shaft tubular pump device under the influence of different guide vane number is studied.【Method】In this paper, CFD method is used to study the bidirectional vertical shaft tubular pump device in a certain project. Based on RNG k-ε turbulence model, numerical calculation and experimental study are carried out for bidirectional pump devices with different guide vane numbers under different flow conditions.【Result】Under the condition of forward and reverse operation, the average axial force of the pump device under different guide vanes is close. When the number of guide vanes is multiple with the number of blades, the peak value of axial force pulsation increases significantly, which affects the safe operation of the device. The radial force of impeller is small, and the influence on engineering can be ignored. When the number of guide vanes is set to even, the radial force of guide vanes can be reduced. |
| Key words: guide vane number; force analysis; Two-way shaft tubular pump device; numerical simulation; model test |
