基于热固耦合的金属硬密封球阀密封特性分析  

Analysis of Sealing Characteristics of Metal Sealed Ball Valve Based on Thermosetting Coupling

作　　者：刘帅帅 何世权[1] 李力 韦彦强 LIU Shuai-shuai;HE Shi-quan;LI Li;WEI Yan-qiang(School of Mechanical and Power Engineering,Nanjing Tech University)

机构地区：[1]南京工业大学机械与动力工程学院

出　　处：《化工机械》2021年第3期406-408,424,共4页Chemical Engineering & Machinery

摘　　要：以金属硬密封球阀为研究对象,建立阀座与球体接触的有限元模型,计算密封比压和弹簧预紧力的大小。采用ANSYS Workbench对密封结构进行温度场分析,并将温度结果导入静力学模块进行耦合分析,分别取5组密封面宽度和6组压力角数据进行模拟。结果表明:密封比压随着密封面宽度的增加而减小,随着压力角的增加而增大。Taking a metal sealed ball valve as the research object,the finite element model for both valve seat and ball contact pairs was established to calculate the seal’s specific pressure and the spring preload force;meanwhile,having temperature field of the seal structure analyzed with ANSYS Workbench and the temperature results imported into static module for coupling analysis,and 5 sets of sealing surface width and 6 sets of pressure angle data selected for simulation to show that,the specific pressure of the seal decreases with the increase of width of the sealing surface,and increases with the increase of pressure angle.

关 键 词：金属硬密封球阀 热固耦合 弹簧预紧力 密封比压 密封面宽度 压力角 

分 类 号：TQ055.81[化学工程]