大型塔板液体流动状况的研究  

Study of the Liquid Flow on a Large Diameter Tray

作　　者：钟思青[1] 余美娟[1] 刘时贤[1] 张成芳[1] 

机构地区：[1]华东理工大学化工工艺研究所

出　　处：《华东理工大学学报（自然科学版）》1998年第3期274-278,共5页Journal of East China University of Science and Technology

摘　　要：在大型冷模试验装置上，研究了液流强度、外堰高、降液管下口高和堰径比等因素对大型塔板板面液体流动状况的影响。实验表明：大型塔板上液体存在严重的不均匀流动，堰径比较大时，液体流动的不均匀性有所减弱；液流强度、外堰高和降液管下口高对板面液流分布的状况共同构成影响；在外堰高和降液管下口高一定的情况下，存在一个适合的液流强度，使板面液体回流区面积最小。The influences of the liquid weir load, outlet weir height, underflow clearance height and weir/diameter ratio on the liquid flow on a Φ1 200mm simulation tray were studied. The experimental results show that there exists highly nonuniform flowing and the flow nonuniformity will be weakened when a large ratio of weir/diameter is used. It was also shown that the liquid weir load, outlet weir height, underflow clearance height influence the liquid flow profile simultaneously. Nevertheless, the presence of a suitable liquid weir load can make the area of recirculation to minimum, provided that outlet weir height and underflow clearance height are fixed.

关 键 词：液流强度 外堰高 堰径比 回流区面积 板式塔 

分 类 号：TQ053.5[化学工程]