Abstract: 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 mm 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.

Key words: rotating zigzag bed, gas velocity of flooding, flooding correlation, high-gravity

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288 mm、高55 mm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100 r/min，液泛能力因子平均减小0.007 m/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%.

关键词: 折流式旋转床, 液泛气速, 液泛关联式, 超重力