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气流在板波填料内的径向混合——(Ⅰ)试验与关联
引用本文:徐崇嗣,姜庆泉,张秀成. 气流在板波填料内的径向混合——(Ⅰ)试验与关联[J]. 化工学报, 1986, 37(1): 89-97
作者姓名:徐崇嗣  姜庆泉  张秀成
作者单位:浙江工学院,浙江工学院,浙江工学院 现在西北大学
摘    要:本文在φ200和φ287mm两种塔内,对4.5型和6.3型板波填料进行了气流径向混合试验,试验采用CO_2作为示踪剂.试验结果表明,板波填料具有良好的径向混合性能.4.5型板波填料的Pe_r仅为1.5左右,而φ15mm拉西环的Pe_r约为3.5.影响气流在板波填料中径向混合的因素有:填料的盘高、盘径、波纹倾角以及气速等.在低Re下,板波填料的Pe_r较低,且随Re的增大而增加,当Re>800以后.Pe_r趋于定值.本文提出了Pe_r与诸参数间的经验关联式.


Radial Dispersion of Gas Stream inCorrugated Plate Packings I . Experiments and Correlation
Xu Chongsi,Zhang Xiuchen and Jiang Qingquan. Radial Dispersion of Gas Stream inCorrugated Plate Packings I . Experiments and Correlation[J]. Journal of Chemical Industry and Engineering(China), 1986, 37(1): 89-97
Authors:Xu Chongsi  Zhang Xiuchen  Jiang Qingquan
Affiliation:Xu Chongsi,Zhang Xiuchen and Jiang Qingquan(Zhejiang Institute of Technology)
Abstract:Experiments on radial dispersion of a gas stream in three different types of packings were carried out in φ200- and φ287- mm perspex columns with CO2 as a tracer. The packing used were corrugated plate with 4.5- or 6.3- type extruded holes, 15-mm Raschig rings, and 25-mm cascade rings.Experimental results indicated that the corrugated plate packing has an excellent radial dispersion behavior. The value of Peclet number Per depends on the height and diameter of the packing element, inclination angle of corrugation and the Reynolds number Re. Peclet number increases with increasing Re at low Re, but approaches a constant value as Re>800.
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