Induction force characters of screw centrifugal pump on solid-liquid unsteady flow condition
Zhang Zhao1, Su Min2*, Han Wei1, Li Rennian1, Quan Hui1, Li Yibin1
1.School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730050, China; 2.College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730050, China
Abstract：Numerical simulation of solid-liquid two-phase unsteady flow in the 150×100LN-32 screw centrifugal pump was simulated by using unsteady reynolds averaged Navier-Stokes equations and moving mesh. The distribution of the pressure at volute outlet, radial force, axial force and total moment are presented in this paper, analysis on influence of value and direction of the induction force on different solid-volume fractions. The results indicated that different solid-volume fractions have no effect on trend and direction of pressure at volute、radial force、axial force and total moment during one period, but the value of induction forces increase with the increasing of solid-volume fraction;The pressure on the monitoring points have fluctuations with different trends during one period, it depends on the direction of the monitoring points and the interaction of impeller and volute. With the rotation of impeller, the pressure in the whole passage are further increased along the impeller rotation direction with the effect of impeller;different solid-volume fractions have no effect on fluctuation trend of monitoring points, but the value of pressure on monitoring points increase with the increasing of solid-volume fraction.
张钊, 苏敏, 韩伟, 李仁年, 权辉, 黎义斌. 螺旋离心泵固液两相非定常流动诱导力特性[J]. 排灌机械工程学报, 2015, 33(4): 296-300.
Zhang Zhao, Su Min*, Han Wei, Li Rennian, Quan Hui, Li Yibin. Induction force characters of screw centrifugal pump on solid-liquid unsteady flow condition. Journal of Drainage and Irrigation Machinery Engin, 2015, 33(4): 296-300.
[1]李仁年,韩伟,李琪飞,等.间隙对螺旋离心泵性能影响的预测及试验[J].农业机械学报,2007,38(6):79-81. Li Rennian, Han Wei, LiQifei,et al. Prediction and Experiment about the effect of the clearance on performance of screw centrifugal pump [J]. Transactions of the Chinese Society of Agricultural Machinery,2007,38(6):79-81.(in Chinese)[2]Wei Han, Wei Ma, Rennian Li, et al, The Numerical Analysis of Radial Thrust and Axial Thrust in the Screw Centrifugal pump[C],ACMS, Kunming,China, 2011.[3]关醒凡.现代泵理论与设计[M].北京,中国宇航出版社,2011.[4]祝磊,袁寿其,袁建平,等.阶梯隔舌对离心泵压力脉动和径向力影响的数值模拟[J].农业机械学报,2010,41(9):21-26. Zhu Lei,Yuan Shouqi,Yuan Jianping,et al. Numerical simulation on pressure f luctuations and radial hydraulic forces in centrifugal pump with step-tongue [J]. Transactions of the Chinese Society of Agricultural Machinery,2010,41(9):21-26.(in Chinese)[5]王春林,易同祥,吴志旺,等.混流式核主泵非定常流场的压力脉动特性分析[J].动力工程,2009,29(11):1036-1040. Wang Chunlin, Yi Tongxiang, Wu Zhiwang,et al. Analysis on pressure fluctuations of unsteady flow field in mixed-flow main coolant pump[J]. Power Engineering, 2009,29(11):1036-1040.(in Chinese)[6]吴登昊,袁寿其,任芸,等. 叶片几何参数对管道泵径向力及振动的影响[J]. 排灌机械工程学报,2013,31(4): 277-283. Wu Denghao, Yuan Shouqi, Ren Yun,et al. Effects of blade geometry parameters on radial force and vibration of in-line circulator pump[J]. Journal of Drainage and Irrigation Machinery Engineering, 2013, 31(4): 277-283.(in Chinese)[7]肖若富,吕腾飞,王福军. 双蜗壳式双吸泵隔板结构对叶轮径向力的影响[J]. 农业机械学报,2011,09:85-88. Xiao Ruofu, Lu Tengfei,Wang Fujun. Influence of rib structure in double-volute centrifugal pumps on the impeller radial force[J]. Transactions of the Chinese Society of Agricultural Machinery,2011,40(9):85-88.(in Chinese)[8]成立,Bart P M van Esch,刘超,等. 喷水推进混流泵叶片径向力[J]. 排灌机械工程学报,2012,30(6): 636-640. Cheng Li,Bart P.M.van Esch,Liu Chao,et al. Radial forces of waterjet propulsion mixed-flow pump [J]. Journal of Drainage and Irrigation Machinery Engineering,2012,30(6): 636-640.(in Chinese)[9]Yasushi Tatebayashi,Kazuhiro Tanaka.Thrust prediction in screw-type centrifugal pump[C]. 4TH ASME_JSME Joint Fluids Engineering Conference, 2003:621-626.[10]Tanaka K,Arai M,Ikeo S,et al Radial thrust in screw-type centrifugal pump[J].TurBomachinary,1989,17(4):215-220.(in Japanese)[11]Okamura M. Radial thrust in centrifugal pump with one blade impeller[J]. Trans JSME, 1979,45(398):1458-1464(in Japanese)[12]马薇. 螺旋离心泵内固液两相非定常流动的数值计算与分析[D].兰州:兰州理工大学能源与动力工程学院,2012.
