非接触式余弦转子泵力学性能分析  

Mechanical Property Analysis of Non-Contact Cosine Rotor Pump

作　　者：任爽 邹旻[1,2] 李亮亮 乔永强 孙定华 REN Shuang;ZOU Min;LI Liangliang;QIAO Yongqiang;SUN Dinghua(School of Mechanical Engineering and Rail Transit,Changzhou University,Changzhou 213164,China;Jiangsu Key Laboratory of Green Process Equipment,Changzhou University,Changzhou 213164,China;Engineering Vehicle System,Changzhou Communication Technician College,Changzhou 213147,China)

机构地区：[1]常州大学机械与轨道交通学院,江苏常州213164 [2]江苏省绿色过程装备重点实验室(常州大学),江苏常州213164 [3]常州交通技师学院工程车辆系,江苏常州213147

出　　处：《常州大学学报（自然科学版）》2021年第2期62-67,共6页Journal of Changzhou University：Natural Science Edition

基　　金：国家自然科学基金资助项目(51075046)。

摘　　要：提出了一种新的转子型线,以余弦函数曲线作为转子型线,并给出转子型线的极坐标方程和直角坐标方程。运用理论推导出非接触式余弦转子泵运输流体过程中产生的液压力,进一步提出减小液压力的措施,提高转子泵使用寿命。结合FLUENT对余弦转子泵进行数值模拟,验证理论分析的正确性。数值模拟结果表明较大的进出口压差导致转子间隙处回流速度增大,效率降低。A new type of rotor profile is proposed,the cosine function curve is used as the rotor profile,and the polar coordinate equation and rectangular coordinate equation of the rotor profile are given.The hydraulic pressure produced in the process of fluid transportation of non-contact cosine rotor pump is deduced theoretically,and the measures to reduce the hydraulic pressure are put forward to improve the service life of rotor pump.Combined with FLUENT,the numerical simulation of cosine rotor pump is carried out to verify the correctness of the theoretical analysis.The numerical simulation results show that the larger inlet and outlet pressure difference leads to the increase of the return velocity at the rotor gap and the decrease of efficiency.

关 键 词：余弦转子 液压力 进出口压差 

分 类 号：TH326[机械工程—机械制造及自动化]