多级泵平衡盘动态平衡的理论研究Theoretical Study on Dynamic Equilibrium of Balance Disc in Multi-stage Pump
赵万勇;王钊;杨登峰;赵爽;王磊;
ZHAO Wan-yong,WANG Zhao,YANG Deng-feng,ZHAO Shuang,WANG Lei(Lanzhou University of Technology,Lanzhou 730050,China)
摘要(Abstract)：
基于多级泵平衡盘的结构特点和工作原理,分析了平衡盘运动平衡的过程。利用连续方程和动量方程对平衡盘间隙流动进行了研究,推导出了平衡盘动态平衡力的函数表达式。进而,根据作用在平衡盘-转子系统上力的动态平衡建立了该系统的运动方程,理论上得到了多级泵平衡盘轴向位移与时间的关系,为研究平衡盘-转子系统的动态性能和轴向振动提供了理论基础。
Based on the structure characteristic and working principle of the balance disc,the process of balance disc movement equilibrium has been analyzed.The clearance flow in balance disc studied by using the continuity equation and momentum equations,the function expression of dynamic balance force has been deduced.And then accroding to the dynamic balance of force exerted on the balance disc-rotor system,motion equation about the system has been established and the relationship between axial displacement of balance disc and time can be got in theoty,which provides the theoretical basis for researching balance dish dynamic performance and axial vibration.
关键词(KeyWords)：
平衡盘;平衡力;轴向力;动态平衡;轴向位移
balance disc;balance force;axial force;dynamic equilibrium;axial displacement
基金项目(Foundation):
作者(Authors):
赵万勇;王钊;杨登峰;赵爽;王磊;
ZHAO Wan-yong,WANG Zhao,YANG Deng-feng,ZHAO Shuang,WANG Lei(Lanzhou University of Technology,Lanzhou 730050,China)
参考文献(References)：
- [1]Rafael Ocampo.Design modification ensures axial po-sition in multistage centrifugal pump rotors[J].WorldPumps,2007(486):28-31.
- [2]Marjan Gantar,Dusan Florjancic,Brane Sirok.Hy-draulic Axial Thrust in Multistage Pumps-Origins andSolutions[J].Journal of Fluids Engineering,2002,124(2):336-341.
- [3]施卫东,李启锋,陆伟刚,等.基于CFD的离心泵轴向力计算与试验[J].农业机械学报,2009,40(1):66-69.
- [4]柴立平,王俊,江志焜,等.反渗透海水淡化高压多级泵的轴向力平衡机构[J].排灌机械,2009,27(3):23-36.
- [5]赵万勇,张亮,王振,等.多级泵平衡盘灵敏性优化设计[J].排灌机械,2008,26(4):19-22.
- [6]赵万勇.多级泵平衡盘间隙流动的理论分析[J].水泵技术,2001(1):21-23,15.
- [7]李春,薛武智.平衡盘的动态性能研究[J].河南科技大学学报(自然科学版),2008,29(4):5,48-50.
- [8]孙大成.润滑力学讲义[M].北京:中国友谊出版公司,1991:37-39.
- [9]赵万勇,赵爽.离心泵叶片设计经验系数取值范围分析[J].流体机械,2012,40(4):39-42,52.
- [10]赵万勇,白双宝,马鹏飞.离心泵转子振动研究现状与展望[J].流体机械,2011,29(3):29,44-46.
- [11]高俊峰,邓杰章,王文灿,等.海底渣油泵P-17/1出口弯头爆管失效分析[J].压力容器,2010,27(10):39,50-53.