三偏心蝶阀蝶板性能分析  

Analysis of Plate in Triple Offset Butterfly Valve

作　　者：余龙[1] 俞树荣[1] 

机构地区：[1]兰州理工大学,甘肃兰州730050

出　　处：《流体机械》2007年第10期36-40,共5页Fluid Machinery

摘　　要：研究了三偏心蝶阀关键部件——蝶板的工作特点和规律,分析了蝶板的受力和变形的分布,并推导出相应的理论公式,得出蝶板边缘应力的分布直接影响三偏心蝶阀性能,而影响蝶板边缘应力主要因素之一是夹角γ的变化,利用有限元分析对结论进行了验证。提出了蝶阀结构的改进意见,对改进三偏心蝶阀设计、改善蝶板应力和变形分布、保证其操作及密封性能起到参考作用。This paper propose the structural analysis of triple offset butterfly valves （TOBV）, and research specialties and rule of butterfly plate in its work. Through the study stress and strain on the plate, account for corresponding academic formulae, and confirm that the stress on plate brim can affect the performance of TOBV directly, furthermore, angle γ is the other. The article put forward advices to mend structure of TOBV, and approved the conclusion make use of FEM analysis. It can improve design and capabilities of TOBV.

关 键 词：三偏心蝶阀 蝶板 应力 位移 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]