Design and Optimization of Combined Magnetic Fluid Seal and Labyrinth Seal

doi:10.3901/JME.2022.09.172

Abstract

Abstract: At present, as a new sealing method, magnetic fluid seal has the advantages of zero leakage, no pollution and long life, but it is relatively weak when the temperature or pressure is high and it is easy to fail under high-speed working conditions. As a traditional sealing method, labyrinth seal has the disadvantage of large leakage, but it is suitable for high-temperature, high-pressure and high-speed working conditions, so it can make up for the shortcomings of magnetic fluid seal well. Therefore, the combined seal structure of magnetic fluid seal and labyrinth seal is designed, and the structural size of pole shoe and shaft sleeve is optimized by orthogonal test and response surface method. The structural size that could maximize the pressure resistance value of the combined seal is obtained, which may provide a theoretical basis for zero-leakage sealing under high-temperature, high-pressure and high-speed conditions.

Key words: magnetic fluid seal, labyrinth seal, structure optimization, response surface methodology

CLC Number:

TH122
TH136

ZHANG Tong, LI Decai, LI Yanwen. Design and Optimization of Combined Magnetic Fluid Seal and Labyrinth Seal[J]. Journal of Mechanical Engineering, 2022, 58(9): 172-181.

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