摘要
对于塔径较大的塔,通常需要采用变径的方式来改善塔内速度和压力的分布,采用fluent软件对四种变径段布局方式下精馏塔内的流场分布进行了数值模拟,计算结果表明:总体而言,对于气液两相接触的精馏塔,变径段采用大端朝下的布局方式比大端朝上的布局方式,在减少壁流效应以及压力变化均匀性方面要好。
For the tower with larger diameter,it is usually necessary to improve the velocity and pressure distribution in the tower by changing the diameter.The flow field distribution in the distillation column with four different sizes is simulated by using fluent software.The results show that,in general,for the distillation column with gas-liquid two-phase contact,the layout of the sizing section with large end-down is more square than that with large end-up.It is better in reducing wall flow effect and uniformity of pressure change.
作者
陈林凤
冯清付
江振飞
王在良
李伯奎
CHEN Lin-fen;FENG Qing-fu;JIANG Zhen-fei;WANG Zai-liang;Li Bo-kui(Jiangsu Kesheng Chemical Machinery Co.,Ltd.,Huaian Jiangsu 223002,China;Huaiyin Institute of Technology,Jiangsu Key Lab of Advanced Manufacturing Technology,Huaian Jiangsu 223003,China)
出处
《装备制造技术》
2019年第4期135-138,共4页
Equipment Manufacturing Technology
关键词
变径段
壁流
压力变化
variable section
wall flow
pressure change
