折流式超重力旋转床的液泛  

Liquid Flooding of a Rotating Zigzag High-gravity Bed

作　　者：谢爱勇[1] 李育敏[1] 徐之超[1] 王红军[1] 计建炳[1] 

机构地区：[1]浙江工业大学化学工程与材料学院,浙江杭州310014

出　　处：《过程工程学报》2009年第2期238-241,共4页The Chinese Journal of Process Engineering

基　　金：浙江省自然科学基金资助项目(编号:Y406239)

摘　　要：在Wallis提出的气液两相逆流液泛关联式的基础上,建立了折流式超重力旋转床的液泛关联式.以空气-水为物系,对转子直径288mm、高55mm的折流式旋转床进行了液泛实验.旋转床转子采用动圈开单排孔和动圈开多排孔2种结构,用实验数据拟合出这2种结构的液泛关联式参数.结果表明,随着气液流动参数的增加,折流式旋转床的液泛能力因子减小.转速每增加100r/min,液泛能力因子平均减小0.007m/s.在相同条件下,多排孔转子液泛能力因子比单排孔高8.5%.The flooding correlation of high-gravity rotating zigzag bed （RZB） was established on the basis of a correlation of flooding in counter-current two-phase flow in tubes proposed by Wallis. The experiment was carried out in a RZB with rotor diameter of 288 mm and rotor height of 55 nun in air-water system. The rotor had two types of structure （single-row orifices and multi-row orifices） on the rotational disc. A flooding correlation was obtained by regression based on the experimental data. The results showed that the flooding capacity factor decreased with the increase of gas-liquid flow rates. The factor was reduced by 0.007 m/s when rotational speed increased each time by 100 r/min. And the factor by the rotor with multi-row orifices was 8.5% greater than that of single-row orifices.

关 键 词：折流式旋转床 液泛气速 液泛关联式 超重力 

分 类 号：TQ051.8[化学工程] TQ021.1