Research on Sealing Performance of Asymmetric Energized Spring Seal Ring Considering Temperature Effect
Aimed at asymmetric energized spring seal rings,the finite element method was used to analyze the influence of the sealing ring length,the difference between the inner and outer lip lengths and the vertical clearance on the sealing performance under different temperatures,and the structure of the sealing ring was optimized by orthogonal test method.The results show that,with the increase of temperature,the contact pressure and effective seal length gradually increase,and the peak contact pressure gradually decreases.With the increase of coil length,the contact pressure increases monotonically,the effective seal length decreases monotonically,and the peak contact pressure shows a nonlinear variation trend of first in-creasing and then decreasing.With the increase of the difference between the inner and outer lip lengths,the contact pres-sure,the effective seal length and the peak contact pressure all have extreme points.At a given temperature,the major de-sign parameters have the following effects on the contact pressure and effective seal length:seal ring length,the difference between inner and outer lip lengths and vertical clearance.The most significant effect on peak contact pressure is the differ-ence between inner and outer lip lengths,followed by the vertical clearance.
asymmetric energized spring seal ringstatic sealing performanceorthogonal test methodstructure optimization
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