摘要
对阀盖处装有滴水盘的超低温阀门进行传热分析,推导出滴水盘及阀盖的温度场,得出在保证填料温度大于0℃时长颈阀盖最小长度的计算方法;并利用此数学模型,分析了导热系数、滴水盘的尺寸及安装数量等因素对长颈阀盖最小长度的影响,得出通过增加滴水盘数量、降低导热系数可以有效缩短阀盖的最小长度.
The heat transfer of super-cryogenic valve with drain-tray at its bonnet was analyzed,the temperature field within the bonnet and drain-tray was derived,the calculation method of the minimum length of long-neck bonnet was obtained to assure the packing temperature being greater than 0℃.And its mathematical model was utilized to analyze the effects of several factors such as thermal conductivity,size and quantity of drain-tray,etc,on the minimum length of the long-neck bonnet.Therefore,it was concluded that increasing the number of drain-tray and decreasing the thermal conductivity of the bonnet could effectively shorten its minimum length.
作者
张希恒
王晓涛
林晓华
李阔
ZHANG Xi-heng WANG Xiao-tao LIN Xiao-hua LI Kuo(College of Petrochemical Engineering, Lanzhou Univ. of Teeh. , Lanzhou 730050, China Department of Petrochemical Equipment Engineering, Hunan Petrochemical Vocational Technology College, Yueyang 414000, China Production Department of Olefin Plant, Fushun Petrochemical Company, China National Petroleum Corporation, Fushun 113000, China)
出处
《兰州理工大学学报》
CAS
北大核心
2017年第5期73-76,共4页
Journal of Lanzhou University of Technology
基金
甘肃省科技支撑项目(1104GKCA052)
关键词
超低温阀门
滴水盘
长颈阀盖
温度场
super-cryogenic valve
drain-tray
long-neck bonnet
temperature field
