Comparative study of the failure pressure between sealing liquids and gas with magnetic fluid

Authors

WANG Hujun, School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China; China Institute of Industrial Relations, Beijing 100048, China
LI Decai, School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China
ZHEN Shaobo, China Institute of Industrial Relations, Beijing 100048, China
HE Xinzhi, School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China
WANG Siqi, School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China

Abstract

Magnetic fluid has been widely used in sealing gas, but sealing liquids with magnetic fluid is still in the research stage. In this paper, the effect of velocity difference on failure pressure was theoretically deduced. The magnetic fluid seal structure was designed and an experiment its rig was set up, and then the seal performances of sealing gas and liquids with magnetic fluid were studied. The results showed that the failure pressures of sealing liquids and gas statically under the same sealing gap were almost the same, and the failure pressure was generally not affected by the speed of the rotating shaft when sealing gas with Magnetic fluid. The failure pressure decreases significantly when the rotating shaft overspeeded the critical value, under the condition of Magnetic fluid as sealing liquids.

Publication Date

11-28-2016

First Page

68

Last Page

70,101

DOI

10.13652/j.issn.1003-5788.2016.11.015

Recommended Citation

Hujun, WANG; Decai, LI; Shaobo, ZHEN; Xinzhi, HE; and Siqi, WANG (2016) "Comparative study of the failure pressure between sealing liquids and gas with magnetic fluid," Food and Machinery: Vol. 32: Iss. 11, Article 15.
DOI: 10.13652/j.issn.1003-5788.2016.11.015
Available at: https://www.ifoodmm.cn/journal/vol32/iss11/15

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