大型塔板上液体流速场分析 |
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引用本文: | 余国琮,黄洁,张清军,王平. 大型塔板上液体流速场分析[J]. 石油化工, 1988, 0(1) |
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作者姓名: | 余国琮 黄洁 张清军 王平 |
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作者单位: | 天津大学化学工程研究所,天津大学化学工程研究所,天津大学化学工程研究所,天津大学化学工程研究所 |
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摘 要: | 在直径2.4m的筛板上,采用电导检测方法,通过微型计算机采样系统进行数据采集,测得大量塔板上液体平均停留时间数据。并用多项式逐次回归方法,拟合出平均停留时间函数。在此基础上,运用流体力学基本原理,建立了塔板上流函数的数学表达式,再差分求解得出塔板上液体二维速度分布,从而确切反映出塔板上实际的复杂流动状态。
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A Study of Liquid Flow Field on Large Tray |
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Abstract: | Simultaneous measurements of liquid residence time distribution at a num-ber of points on a 2.4m diameter half sieve tray are made by using tracertechnique in water/air system,All experimental data are processed by a BCM-Ⅱ microcomputer to obtain the experimental residence time profiles coveringthe whole tray deck.A liquid residence time distribution function is introducedto the mathematical model for single-pass tray and a flow function equation isthen proposed and solved by the method of difference to determine two-dimen-sional velocity distribution. |
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