传质单元高度

通过试验数据处理，得到了计算该填料层压降、填料因子、液泛气速和气相总传质单元高度的关联式，这些关联式的计算结果与实测结果吻合较好，其中最大偏差为（±17%）。

By correlating the experimental data , equations for calculating the pressure drop , packing factor , flooding gas velocity and gas phase overall height of a transfer unit were obtained . The calculated results were in conformity with the experimental data , which maximum deviation was 17 % .

结果表明，在低转速区旋转填料床的理论塔板数随气相动能因子F和超重力因子β的增大而增大，传质单元高度为1.09～1.76cm；

The result showed that the mass transfer efficiency of RPB increased correspond to the F and β in low rotating speed .

利用该模型可以在缺乏相间传热系数的情况下，计算出最小液-汽比及传质单元高度HTU。

The minimum liquid & vapor ratio and the Height of Mass Transfer Unit " HTU " can be obtained in lack of interphase heat transfer coefficient by the model .

探讨了筛板的振动频率和振幅对分散相液滴的直径，分散相的持液量及传质单元高度的影响。

The Sauter mean diameter of droplets , dispersed phase hold up and height of mass transport unit are studied respectively .

获得了压强降填料因子、泛点填料因子，以及液相真实传质单元高度的关联式。

The correlations of the packing factor of pressure drop , packing factor of flooding point , and HTU of the true liquid phase mass transfer were obtained .

并获得网格塔传质单元高度与转速、流率、粘度及滞存率等各因素的关联式。

Meanwhile , a correlation of HTU of mesh plate column with the factors such as rotating speed , flow rate , viscosity and holding-up rate is obtained .

通过对实验数据的回归分析得出了轴向返混参数、填料层压降及传质单元高度的关联式。

Through regressing experimental data , the correlative expressions of the axial backmixing parameter Pe and the pressure drop of packing layer Δ p / Z and the height of mass transfer unit H OG were obtained .

在相同分散相流量下，喷射萃取的传质单元高度比液液萃取低1/2～1/3。

Under the same dispersed phase flow rate , the HTU is only 1 / 2 ~ 1 / 3 and the extraction efficiency is 2 ~ 3 times higher in spray extraction than that in liquid-liquid extraction .