摘要
从流体力学实验角度 ,研究了不同液气比情况下的旋流板阻力特性 .由试验结果 ,分析了旋流塔板压降与其结构、液气比、气体密度和气体塔板穿透速度等影响因子的无因子量化关系 ,利用回归分析手段 ,推导出了主要参数对旋流板阻力的回归并联式 ,提出了一个新的多参数旋流板阻力公式 .并将此公式与传统的旋流板阻力公式进行了比较 .发现 :传统的旋流板阻力公式只有穿孔动能因子F0 在 11kg0 .5/m0 .5·s左右时 ,计算误差较小 ,否则 ,计算误差非常大 .新的旋流板阻力计算公式适用范围广 ,不同液气比 ,不同穿孔动能因子情况下的计算误差在 10 %以内 .
From the aspect of hydrodynamics, the authors studied the characteristics of pressure loose in the rotating-steam tray through experiments under differential gas-liquid ratio relations. From these experimental results, we discussed the non-dimensional quantitative relationship between pressure loose and other influential factors, such as the structure of the rotating-stream tray, the gas-flow rate, the liquid-flow rate, gas-liquid ratio, gas density and the gas penetration velocity between two rotating-stream plates. Also, we derived some correlation equations for the effects of the influential factors upon the pressure loss, and then proposed a new formula for pressure loss with many factors. By comparing this formula with the traditional formula, it is found that in the condition of varying gas-liquid ratio and dynamic factor, the relative error of the calculated value and the actually measured value in the new formula is less than 10%, while the traditional formula has a small relative error only when the dynamic factor F 0 is around 11 kg 0.5/m 0.5·s.
出处
《湖南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2004年第2期36-39,共4页
Journal of Hunan University:Natural Sciences
基金
国家自然科学基金资助项目 ( 2 0 3 760 19)
湖南大学"三英计划"资助项目
关键词
旋流板
阻力
液气比
rotating-stream tray
pressure loose
gas-liquid ratio
