折流式超重力旋转床的液泛

›› 2009, Vol. 9 ›› Issue (2): 238-241.

折流式超重力旋转床的液泛

谢爱勇李育敏徐之超计建炳计建炳

浙江工业大学化学工程与材料学院浙江工业大学化材学院化工原理教研组浙江工业大学化材学院化工原理教研组浙江工业大学化材学院化工原理教研组

收稿日期:2008-11-14 修回日期:2009-02-04 出版日期:2009-04-20 发布日期:2009-04-20

Liquid Flooding of a Rotating Zigzag High-gravity Bed

XIE Ai-yong LI Yu-min XU Zhi-chao WANG Hong-jun JI Jian-bing

College of Chemical Engineering & Materials Science, Zhejiang University of Technology College of Chemical Engineering & Materials Science, Zhejiang University of Technology College of Chemical Engineering & Materials Science, Zhejiang University of Technology College of Chemical Engineering & Materials Science, Zhejiang University of Technology

Received:2008-11-14 Revised:2009-02-04 Online:2009-04-20 Published:2009-04-20

摘要/Abstract

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

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

中图分类号:

TQ051.8 TQ021.1

谢爱勇李育敏徐之超计建炳计建炳. 折流式超重力旋转床的液泛[J]. , 2009, 9(2): 238-241.

XIE Ai-yong LI Yu-min XU Zhi-chao WANG Hong-jun JI Jian-bing. Liquid Flooding of a Rotating Zigzag High-gravity Bed[J]. , 2009, 9(2): 238-241.

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