三偏心蝶阀密封接触问题的有限元分析  

Sealing-contact Analysis on Tri-eccentric Butterfly Valve by Finite Element Method

作　　者：徐滟[1] 王渭[2] 

机构地区：[1]合肥学院机械工程系,安徽合肥230022 [2]合肥通用机械研究院阀门研究所,安徽合肥230031

出　　处：《润滑与密封》2006年第6期56-60,共5页Lubrication Engineering

基　　金：安徽省高等学校自然科学研究项目(2005kj047)

摘　　要：对三偏心金属蝶阀密封面接触问题进行了非线性有限元分析,阐明了其理论依据。数值模拟过程中,充分考虑了轴向偏心、径向偏心、角偏心的设计参数对密封面密封比压的影响,以DN 300口径、PN 5 MPa工作压力的三偏心金属蝶阀为例,得到其密封时的应力分布,对满足一定压力下“双向零泄漏”三偏心蝶阀的结构优化有指导意义。The sealing contact analysis of tri-eccentric butterfly valve was discussed by nonlinearity finite element method ,and the theory of the method was clarified. During the process of numerical simulaled analysis, the effects of axi-eccentric, radial-eccentric and angle-eccentric were considered, and the contact pressure distribution on the sealing surface of a tri-eccentric butterfly valve was gotten. All these studies are useful to the optimum design on bi-directional drop-tight trieccentric butterfly valve.

关 键 词：三偏心蝶阀 数值仿真 接触问题 密封比压 非线性有限元 

分 类 号：TB42[一般工业技术]