Optimization of Structural Parameters for K-shaped Metal Sealing Ring of Flow Control Valve
There are many structural parameters for the K-shaped metal sealing ring of the flow control valve,and there are significant differences in the degree of influence of different structural parameters on the sealing performance.Taking the contact pressure of the sealing surface,the effective contact length of the sealing surface,and the maximum Mises stress as constraint conditions,orthogonal experimental design was used to study the influence of structural parameters on the sealing performance of K-shaped metal sealing rings.Three factors,namely lip length,cantilever internal angle,and cantile-ver thickness,were determined as design variables for the response surface method.The quadratic regression equations of the relationship between contact pressure,maximum equivalent stress,effective contact length and design parameters was obtained through orthogonal experiments and regression analysis,and the sealing structure was optimized and analyzed based on the response surface method.After optimization,the contact pressure of the K-shaped metal sealing ring increases by 8.09％,the effective contact length increases by 14.73％,and the maximum equivalent stress decreases by 13.44％,in-dicating that the contact pressure distribution on the sealing surface of the K-shaped metal sealing ring is more uniform af-ter optimization,and the sealing performance of the metal sealing ring is effectively improved.
K-shaped metal sealstructure optimizationresponse surface methodologyBox-Behnkenflow control valve
NETL
NSTL
万方数据
