低温阀门阀盖颈部温度场分析  

Temperature field analysis of bonnet neck of cryogenic valve

作　　者：俞树荣[1] 金维增[1] 张希恒[1] 王硕 

机构地区：[1]兰州理工大学石油化工学院,甘肃兰州730050 [2]中国石油润滑油公司兰州润滑油厂,甘肃兰州730060

出　　处：《兰州理工大学学报》2012年第5期58-61,共4页Journal of Lanzhou University of Technology

基　　金：甘肃省科技支撑项目(1105ZSB079)

摘　　要：分析低温阀门的低温介质对填料密封性能的影响,并对长颈阀盖结构进行合理的物理模型简化,建立阀盖颈部长度与温度场关系的数学模型,分析长颈阀盖温度场的分布,推导阀盖颈部长度与温度场的关系式,得到阀盖的最短长度,并且满足阀门设计标准,为工程设计提供理论参考依据.The influence of the cryogenic medium in cryogenic valve on sealing performance of the packing was analyzed and a mathematical model of the relationship between the length of the bonnet neck and the temperature field was established after the physical model of the structure of long-neck bonnet was reasonably simplified.The minimum length of the bonnet satisfying the designing standards was obtained by using the relation of the length of the bonnet neck with the temperature field.Therefore,a theoretical reference basis was provided for engineering design.

关 键 词：低温阀门 温度场 阀盖 颈部长度 

分 类 号：TQ055.83[化学工程]