泡罩立体筛板的流体力学性能  

Hydrodynamic performance of the new Bubble-cap Tridimensional Sieve tray

作　　者：刘静[1] 褚雅志[1] 王领 刘燕 马晓迅[1] LIU Jing CHU Ya-zhi WANG Ling LIU Yan MA Xiao-xun(College of Chemical Engineering, Northwest University, Xi＇an 710069, Shaanxi Province, China Xi＇an Chemdoctor Petrochemical Engineering Co. Ltd, Xi＇an 710077, Shaanxi Province, China)

机构地区：[1]西北大学化工学院,陕西西安710069 [2]西安道特石化工程有限公司,陕西西安710077

出　　处：《化学工程》2017年第7期18-21,37,共5页Chemical Engineering(China)

摘　　要：将鼓泡传质和喷射传质有机结合,自主研发出泡罩立体筛板。以空气和水为介质,对新型泡罩立体筛板(NBTS)的流体力学性能进行研究,考察板孔动能因子、液相流量和堰高对其板压降、漏液和雾沫夹带的影响,并与泡罩立体筛板(BTS-1)进行对比。由结果可知:新型泡罩立体筛板的总板压降和雾沫夹带随板孔动能因子、堰高和液体流量的增大而增大;漏液点气速随堰高和液体流量的增大而增大,N-BTS的性能优于BTS-1,满足设计要求。Combining mass transfer form of bubbling with mass transfer form of spraying, Bubble-cap Tridimensional Sieve trays were independently researched. The hydrodynamic performance of the new Bubble-cap Tridimensional Sieve trays （N-BTS） was studied in water-air system. Kinetic energy factor in plate hole, liquid flow rate and weir height influence on tray pressure drop, weeping and entrainment were investigated. Besides N-BST was compared with BTS-1. The results show that the total tray pressure drop and entrainment rate of N-BTS are increased with increasing kinetic energy factor in plate hole, liquid flow rate and weir height. With the increasing weir height and liquid flow rate, the gas velocity at liquid weeping point is increased, and performance of N-BTS is superior to BTS- 1. Optimized tray structure satisfies the design requirements.

关 键 词：喷射型塔板 流体力学 板压降 漏液 雾沫夹带 

分 类 号：TQ053.5[化学工程]