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过程工程学报 ›› 2017, Vol. 17 ›› Issue (4): 704-708.DOI: 10.12034/j.issn.1009-606X.216327

• 流动与传递 • 上一篇    下一篇

超重力床的离心密封性能及其CFD模拟

唐迪,  李育敏,  计建炳*     

  1. 浙江工业大学超重力工程技术研究中心，浙江 杭州 310014
  • 收稿日期:2016-10-19 修回日期:2017-01-09 出版日期:2017-08-20 发布日期:2017-08-16
  • 通讯作者: 计建炳 jjb@zjut.edu.cn

The Property of Centrifugal Seal of High Gravity Bed and Its CFD Numerical Simulation

Di TANG,  Yumin LI,  Jianbing JI*     

  1. Research Center for High Gravity Engineering and Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
  • Received:2016-10-19 Revised:2017-01-09 Online:2017-08-20 Published:2017-08-16
  • Contact: WANG Hong-jun jjb@zjut.edu.cn

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摘要： 设计了离心密封实验装置，用于超重力床中转子与气相出口管的动密封，以空气?水为介质，通过测定漏气流量和腔内压力研究离心密封性能，同时进行CFD模拟. 结果表明，在实验装置采用的结构尺寸和1600 r/min转速下，离心密封可承受25 kPa的临界压差，在此压差下，漏气流量小于0.2 L/h. CFD模拟的临界压差与实验结果较吻合.

关键词: 超重力床, 动密封, 离心密封, CFD模拟

Abstract: An experimental equipment of centrifugal seal was designed for the dynamic seal between the basis and the gas outlet pipe of high gravity bed. With the air and water system, the air leakage flow rate was investigated with the changing of the inside pressure. The results indicated that the centrifugal seal can resist 25 kPa critical pressure drop under 1600 r/min rotational speed. Below the critical pressure, the air leakage flow rate was less than 0.2 L/h. The critical pressure drop of CFD simulation was in good agreement with the experimental data.

Key words: high gravity bed, dynamic seal, centrifugal seal, CFD simulation