|本期目录/Table of Contents|

[1]吕剑渊,许文倩,张玉良,等.蜗壳隔舌安放角对离心泵特性及流动稳定性的影响[J].浙江理工大学学报,2021,45-46(自科三):351-364.
　L Jianyuan,XU Wenqian,ZHANG Yuliang,et al.The influence of volute tongue angle on the characteristic and flow stability of centrifugal pump[J].Journal of Zhejiang Sci-Tech University,2021,45-46(自科三):351-364.
点击复制

蜗壳隔舌安放角对离心泵特性及流动稳定性的影响()
分享到：

浙江理工大学学报[ISSN:1673-3851/CN:33-1338/TS]

卷:
第45-46卷
期数:
2021年自科第三期
页码:
351-364
栏目:
出版日期:
2021-04-28

文章信息/Info

Title:
The influence of volute tongue angle on the characteristic and flow stability of centrifugal pump
文章编号:
1673-3851 (2021) 05-0351-14
作者:
吕剑渊; 许文倩; 张玉良; 李龙海; 窦华书
1.浙江理工大学机械与自动控制学院，杭州 310018；2.衢州学院浙江省气动设备技术重点实验室，浙江衢州 324000
Author(s):
L Jianyuan1;  XU Wenqian1;  ZHANG Yuliang2;  LI Longhai1;  DOU Huashu1
1.Faculty of Mechanical Engineering & Automation, Zhejiang Sci-Tech University, Hangzhou 310018, China; 2.Key Laboratory of AirDriven Equipment Technology of Zhejiang  Province, Quzhou University, Quzhou 324000, China
关键词:
离心泵; 蜗壳隔舌安放角; 能量耗散; 压力脉动; 熵产率
分类号:
TH311
文献标志码:
A
摘要:
采用数值模拟方法对蜗壳隔舌安放角角度的大小进行研究，分析其对离心泵内部流动状态的影响。根据比转速与蜗壳隔舌安放角的关系，设计4种蜗壳隔舌安放角方案；采用NavierStokes方程与SST（剪切应力传输）kω湍流模型来研究高比转速离心泵的瞬态内部流动。结果表明：在外特性方面，蜗壳隔舌安放角为35°时，离心泵的扬程和效率最高，并且大流量工况时，蜗壳隔舌安放角为29°和32°的离心泵扬程和效率都急剧下降；在能量方面，蜗壳隔舌安放角从29°增大到38°的过程中，离心泵的能量损耗和熵产率都先减小后增大，在蜗壳隔舌安放角为35°时取得最小值；在内部流动稳定性方面，适当地增大蜗壳隔舌安放角，可以明显地降低蜗壳内部的压力脉动，减少蜗壳隔舌处的回流，使蜗壳和叶轮的内部流动更加稳定。因此，适当地增大蜗壳隔舌安放角对离心泵内部流动的稳定起促进作用，同时也能够抑制能量的耗散。

参考文献/References:

［1］ Wu Y L. Instability of system caused by hydraulic machinery［M］// Wu Y L, Li S C, Liu S H, et al. Vibration of Hydraulic Machinery. Dordrecht: Springer Netherlands, 2013: 377-429.
［2］ Li W, Li E D, Ji L L, et al. Mechanism and propagation characteristics of rotating stall in a mixedflow pump［J］. Renewable Energy, 2020, 153: 74-92.
［3］ Prunières R, Inoue Y, Nagahara T. Investigation of the flow field and performances of a centrifugal pump at part load［J］. IOP Conference Series: Earth and Environmental Science, 2016, 49: 032015.
［4］ Guo R, Li R N, Zhang R H, et al. Numerical study of the unsteady flow characteristics of a jet centrifugal pump under multiple conditions［J］. Processes, 2019, 7(11): 786.
［5］ Ren X M, Fan H G, Xie Z F, et al. Stationary stall phenomenon and pressure fluctuation in a centrifugal pump at partial load condition［J］. Heat and Mass Transfer, 2019, 55(8): 2277-2288.
［6］ Zhou P J, Dai J C, Li Y F, et al. Unsteady flow structures in centrifugal pump under two types of stall conditions［J］. Journal of Hydrodynamics, 2018, 30(6): 1038-1044.
［7］ Tao R, Wang Z W. Comparative modeling and analysis of the flow asymmetricity in a centrifugal pump impeller at partial load［J］. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 2020, 234(2): 237-247.
［8］ Yang Y F, Li W, Shi W D, et al. Numerical investigation on the unstable flow at offdesign condition in a mixedflow pump［J］. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 2019, 233(7): 849-865.
［9］ Ye W X, Qian Z D, Huang R F, et al. Instability analysis for a centrifugal pump with straight inlet pipe using partially averaged NavierStokes model［J］. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 2020:
095765092091954.
［10］ Lai F, Zhu X Y, Li G J. Numerical investigation of energy loss in a centrifugal pump through kinetic energy dissipation theory［J］. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2020, 234(19): 3745-3761.

相似文献/References:

[1]黄远民,李昳,崔巧玲,等.IS型离心泵内部流动的三维数值模拟[J].浙江理工大学学报,2011,28(02):221.
[2]郑路路,窦华书,蒋威,等.基于能量梯度方法的叶片数对离心泵稳定性影响研究[J].浙江理工大学学报,2016,35-36(自科1):71.
　XU Jun,JIANG Kejian,WANG Jun.Adaptive Active Control of Single Freedom Simple  Harmonic Vibration of Electromagnet Bearing[J].Journal of Zhejiang Sci-Tech University,2016,35-36(自科三):71.
[3]张鑫,崔宝玲,周汉涛,等.不同起始直径分流叶片的离心泵内部流场数值分析[J].浙江理工大学学报,2016,35-36(自科2):225.
　ZHANG Xin,CUI Baoling,ZHOU Hantao,et al.Numerical Analysis on Internal Flow Field of Centrifugal Pump  with Splitter Blades of Different Initial Diameters[J].Journal of Zhejiang Sci-Tech University,2016,35-36(自科三):225.
[4]林培锋,徐文斌.进口肋条对离心泵定常流动影响的数值研究[J].浙江理工大学学报,2019,41-42(自科四):461.
　LIN Peifeng,XU Wenbin.Numerical study of influence of inlet ribs on steady flow of centrifugal pump[J].Journal of Zhejiang Sci-Tech University,2019,41-42(自科三):461.
[5]王春贺,林培锋.三角形仿生微槽对离心泵定常流动影响的数值研究[J].浙江理工大学学报,2023,49-50(自科二):246.
　WANG Chunhe,LIN Peifeng.Numerical study of influence of triangular bionic  microgrooves on the steady flow of centrifugal pumps[J].Journal of Zhejiang Sci-Tech University,2023,49-50(自科三):246.

备注/Memo

备注/Memo:
收稿日期：2020-12-18
网络出版日期：2021-02-04
基金项目：国家自然科学基金项目(51536008, 51579224)；浙江省重点研发计划(2018C03046)
作者简介：吕剑渊(1993-)，男，江西上饶人，硕士研究生，主要从事流体机械理论及应用方面的研究
通信作者：许文倩，E-mail：xuwenqian@zstu.edu.cn
更新日期/Last Update: 2021-06-29