【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%.更多还原

【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.更多还原