Analytical study of the end-face friction loss in a synchronal rotary multiphase pump

作者：Yang, Xu^*; Chen, Xiang; Ma, Junjie; Qu, Zongchang

来源：Proceedings of the Institution of Mechanical Engineers - Part C: Journal of Mechanical Engineering Science , 2017, 231(19): 3614-3623.

DOI：10.1177/0954406216651304

• Modelling
• sliding friction
• numerical simulation
• efficiency
• rotary compressor
• end face
• multiphase pump

This study introduces a new type of end-face structure with polytetrafluoroethylene seals that improves the reliability of the synchronal rotary multiphase pump (SRMP). End-face models, including the relative motion and friction loss between the rotor and cylinder end faces, are established for both the original and the improved end-face structures. The end-face friction losses are analytically investigated based on the theoretical calculations. Due to the low relative velocity between the rotor and cylinder end faces, the end-face friction losses for both of the end-face structures are found to be insignificant compared to the total friction loss in the SRMP. The increased end-face friction loss caused by the polytetrafluoroethylene seals in the improved end-face structure is also negligible. Assessment of the friction losses of two end-face structures in high-speed and high-pressure applications shows that the improved end-face structure exhibits better performance than the original. The parametric analysis suggests that the wider but taller cylinder is helpful in reducing the end-face friction loss of SRMP.

• 出版日期2017-10
• 单位西安交通大学