化学工程2012，Vol.40Issue(8)：61-64,73,5.DOI:10.3969/j.issn.1005-9954.2012.08.014
喷射式环流反应器内流速分布的实验研究
Experimental research on velocity distribution within jet loop reactor
谭朝尹 1孙勤 1杨阿三 1程榕 1郑燕萍1
作者信息
- 1. 浙江工业大学化学工程与材料学院,浙江杭州 310014
- 折叠
摘要
Abstract
The effect of outlet velocity and location of nozzle on jet loop reactor (JLR) whose bottom is designed for truncated right angle cone was studied, and the optimal outlet velocity and location of nozzle were determined sequentially. The velocity was measured and the speed distribution within JLR was drawn. The velocity field and the flow ratio of internal reflux flow to external reflux were analyzed, and the optimal parameters were determined. The result indicates that the optimal outlet velocity is 2. 1 m/s and the location of nozzle is 40 mm. The liquid velocity presents parabolic in radial distribution with the highest velocity at the central axis of the draft tube. With the increasing of outlet velocity, the liquid velocity in downcomer increases, and the volume flow ratio of internal reflux to external reflux increases; when the jet nozzle location raises from a lower position to a higher position, the volume flow ratio of internal reflux to external reflux increases first and then decreases, and the liquid velocity in downcomer is subject to the same rule.
关键词
喷射环流反应器/喷嘴位置/喷嘴出口速度/速度分布Key words
jet loop reactor/ location of nozzle/ outlet velocity of nozzle/ velocity distribution分类
化学化工引用本文复制引用
谭朝尹,孙勤,杨阿三,程榕,郑燕萍..喷射式环流反应器内流速分布的实验研究[J].化学工程,2012,40(8):61-64,73,5.
