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考虑叶轮流动滑移的离心泵盘腔流动模型

顾延东 程金武 梁澳 成立 王鹏

顾延东,程金武,梁澳,等.考虑叶轮流动滑移的离心泵盘腔流动模型[J].航空动力学报,2022,37(7):1550‑1559. doi: 10.13224/j.cnki.jasp.20210274
引用本文: 顾延东,程金武,梁澳,等.考虑叶轮流动滑移的离心泵盘腔流动模型[J].航空动力学报,2022,37(7):1550‑1559. doi: 10.13224/j.cnki.jasp.20210274
GU Yandong,CHENG Jinwu,LIANG Ao,et al.Flow model for side chambers of centrifugal pumps considering impeller flow slip[J].Journal of Aerospace Power,2022,37(7):1550‑1559. doi: 10.13224/j.cnki.jasp.20210274
Citation: GU Yandong,CHENG Jinwu,LIANG Ao,et al.Flow model for side chambers of centrifugal pumps considering impeller flow slip[J].Journal of Aerospace Power,2022,37(7):1550‑1559. doi: 10.13224/j.cnki.jasp.20210274

考虑叶轮流动滑移的离心泵盘腔流动模型

doi: 10.13224/j.cnki.jasp.20210274
基金项目: 

国家自然科学基金 51779214

江苏高校优势学科建设工程资助项目 

江苏省博士后科研资助项目 2021K569C

详细信息
    作者简介:

    顾延东(1989-),男,讲师、硕士生导师,博士,主要从事泵理论与设计、润滑理论与轴承设计。E⁃mail:guyandong@yzu.edu.cn

  • 中图分类号: V233

Flow model for side chambers of centrifugal pumps considering impeller flow slip

  • 摘要:

    为研究离心泵盘腔内外特性,将离心泵盘腔三维流动简化为动静腔一维流动,基于动量守恒方程和径向连续方程,构建了动静腔流动微分方程;积分该方程并应用到盘腔中,引入密封件阻力系数,考虑叶轮流动滑移,修正泵势扬程公式,建立了离心泵叶轮⁃盘腔⁃密封环⁃平衡孔回路的自封闭流动模型。提出了内外迭代相结合的求解方法,实现了离心泵盘腔流动快速计算。通过与盘腔压力测量结果对比表明:使用Stodola叶轮流动滑移系数的盘腔流动模型比使用Wiesner叶轮流动滑移系数的盘腔流动模型的计算精度提高了约3.5%。盘腔流动模型结果表明:泵工况从小流量调节至大流量,容积效率逐渐提高,盖板推力略微逐渐增大。该方法及结论为离心泵盘腔内外特性计算提供参考。

     

  • 图 1  离心泵轴面流动

    Figure 1.  Flow on the meridional plane of centrifugal pumps

    图 2  动静腔流动建模[14]

    Figure 2.  Flow modeling for rotor⁃stator cavities[14]

    图 3  叶片速度三角形

    Figure 3.  Velocity triangle for blades

    图 4  离心泵叶轮

    Figure 4.  Impeller of centrifugal pumps

    图 5  求解方法

    Figure 5.  Solution method

    图 6  离心泵外特性及盘腔压力实验台

    Figure 6.  Centrifugal pump experimental rig for measuring performance and pressure in side chambers

    图 8  离心泵外特性实验结果

    Figure 8.  Experimental result of centrifugal pumps performance

    图 10  离心泵盘腔流动模型计算的泄漏量和容积效率

    Figure 10.  Leakage and volumetric efficiency calculated by flow model of centrifugal pump side chambers

    图 11  离心泵盘腔流动模型计算的盖板推力

    Figure 11.  Shroud thrust calculated by flow model of centrifugal pump side chambers

  • [1] 袁俊飞,唐大伟,曹宏章.泵驱动相变冷却系统中储液器压力响应特性[J].航空动力学报,2015,30(10):2384⁃2390.

    YUAN Junfei,TANG Dawei,CAO Hongzhang.Response characteristics of accumulator pressure in pumped phase⁃change cooling system[J].Journal of Aerospace Power,2015,30(10):2384⁃2390.(in Chinese)
    [2] 姜继海,申通,杨堃,等.航空煤油泵轴尾机械密封副材料特性[J].航空动力学报,2018,33(9):2188⁃2197.

    JIANG Jihai,SHEN Tong,YANG Kun,et al.Material characteristics of mechanical seal in shaft end of aviation kerosene pump[J].Journal of Aerospace Power,2018,33(9):2188⁃2197.(in Chinese)
    [3] PONCET S,CHAUVE M P,LE GAL P.Turbulent rotating disk flow with inward throughflow[J].Journal of Fluid Mechanics,2005,522:253⁃262.
    [4] LAUNDER B,PONCET S,LaminarSERRE E.,transitional,and turbulent flows in rotor⁃stator cavities[J].Annual Review of Fluid Mechanics,2010,42(1):229⁃248.
    [5] 曹楠,窦志伟,罗翔,等.轴向通流旋转盘腔换热特性[J].航空动力学报,2018,33(5):1178⁃1185.

    CAO Nan,DOU Zhiwei,LUO Xiang,et al.Heat transfer characteristics of a rotating cavity with axial throughflow of cooling air[J].Journal of Aerospace Power,2018,33(5):1178⁃1185.(in Chinese)
    [6] 关醒凡.现代泵理论与设计[M].北京:中国宇航出版社,2011.
    [7] LI Wenguang.Model of flow in the side chambers of an industrial centrifugal pump for delivering viscous oil[J].Journal of Fluids Engineering,2013,135(5):051201.1⁃051201.22.
    [8] 刘在伦,董玮,张楠,等.离心泵平衡腔液体压力的计算与验证[J].农业工程学报,2013,29(20):54⁃59.

    LIU Zailun,DONG Wei,ZHANG Nan,et al.Calculation and validation of fluid pressure of balance cavity in centrifugal pump[J].Transactions of the Chinese Society of Agricultural Engineering,2013,29(20):54⁃59.(in Chinese)
    [9] 刘在伦,张森,邵安灿,等.离心泵泵腔液体压力分布理论计算及验证[J].机械工程学报,2016,52(4):178⁃184,191.

    LIU Zailun,ZHANG Sen,SHAO Ancan,et al.Theoretical computation and verification for fluid static pressure in centrifugal pump side chamber[J].Chinese Journal of Mechanical Engineering,2016,52(4):178⁃184,191.(in Chinese)
    [10] 杨从新,强盼.口环间隙对高速泵泵腔内流动特征的影响[J].排灌机械工程学报,2017,35(4):296⁃302.

    YANG Congxin,QIANG Pan.Effects of wear⁃rings clearance on flow characteristic in impeller side chamber of high⁃speed centrifugal pump[J].Journal of Drainage and Irrigation Machinery Engineering,2017,35(4):296⁃302.(in Chinese)
    [11] ZHANG Sen,LI Huaxing,XI Deke.Investigation of the integrated model of side chamber,wear⁃rings clearance,and balancing holes for centrifugal pumps[J].Journal of Fluids Engineering,2019,141(10):101101.1⁃101101.12.
    [12] 董玮,楚武利.离心泵叶轮平衡腔内液体流动特性及圆盘损失分析[J].农业机械学报,2016,47(4):29⁃35.

    DONG Wei,CHU Wuli.Analysis of flow characteristics and disc friction loss in balance cavity of centrifugal pump impeller[J].Transactions of the Chinese Society for Agricultural Machinery,2016,47(4):29⁃35.(in Chinese)
    [13] 董玮,何庆南,梁武科,等.双蜗壳离心泵泵腔轴向宽度与流动特性的关系[J].西北工业大学学报,2020,38(6):1322⁃1329.

    DONG Wei,HE Qingnan,LIANG Wuke,et al.Relationship between axial width and flow characteristics of pump chamber in double volute centrifugal pump[J].Journal of Northwestern Polytechnical University,2020,38(6):1322⁃1329.(in Chinese)
    [14] GU Yandong,PEI Ji,YUAN Shouqi,et al.A pressure model for open rotor⁃stator cavities:an application to an adjustable⁃speed centrifugal pump with experimental validation[J].Journal of Fluids Engineering,2020,142(10):101301.1⁃101301.11.
    [15] GULICH J F.Centrifugal pumps[M].2nd Ed.Berlin:Springer⁃Verlag,2008.
    [16] 邵春雷,顾伯勤,黄星路,等.低比转速泵叶轮流道内部流动的PIV试验[J].航空动力学报,2010,25(9):2091⁃2096.

    SHAO Chunlei,GU Boqin,HUANG Xinglu,et al.Experimental study on flow in the impeller of low specific speed pump using particle image velocimetry[J].Journal of Aerospace Power,2010,25(9):2091⁃2096.(in Chinese)
    [17] 王川,施卫东,陆伟刚,等.不同叶片厚度的不锈钢冲压井泵性能模拟与试验[J].农业机械学报,2012,43(7):94⁃99.

    WANG Chuan,SHI Weidong,LU Weigang,et al.Effect and experiment of different blade thickness on stainless steel stamping well pump performance[J].Transactions of the Chinese Society for Agricultural Machinery,2012,43(7):94⁃99.(in Chinese)
    [18] 王晓晖,杨军虎,夏正廷,等.叶轮流速系数对泵正反转性能参数比的影响[J].航空动力学报,2019,34(2):495⁃502.

    WANG Xiaohui,YANG Junhu,XIA Zhengyan,et al.Effect of impeller velocity coefficient on parameters ratios between pump and its reverse mode[J].Journal of Aerospace Power,2019,34(2):495⁃502.(in Chinese)
    [19] KUROKAWA J,TOYOKURA T.Study on axial thrust of radial flow turbomachinery[C]∥Proceedings of 2nd International JSME(Japan Society of Mechanical Engineers) Symposium Fluid Machinery and Fluid Mechanics.Tokyo:Japan Society of Mechanical Engineers,1972:4⁃9.
    [20] WILL B C,BENRA F K.Investigation of the fluid flow in a rotor⁃stator cavity with inward through⁃flow[C]∥Proceedings of ASME(American Society of Mechanical Engineers) Fluids Engineering Division Summer Meeting.Vail,USA:American Society of Mechanical Engineers,2009:207⁃218.
    [21] MUNSON B R,YOUNG D F,OKIISHI T H,et al.Fundamentals of Fluid Mechanics[M].6th ed.New York:Wiley,2014.
    [22] WIESNER F J.A review of slip factors for centrifugal impellers[J].Journal of Engineering for Power,1967,89(4):558⁃566.
    [23] GU Yandong,PEI Ji,YUAN Shouqi,et al.Investigations on flow characteristics in diffuser⁃discharge⁃channel of volute casing[R].Montreal,Canada:Fluids Engineering Division Summer Meeting,FEDSM2018⁃83051,2018.
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  • 收稿日期:  2021-06-02

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