共轭环翅填料的流体力学与传质性能

以正犁削金属表面翅成形技术加工出共轭环翅填料,用富氧水解吸方法测定了38 mm铝材共轭环翅填料的流体力学和传质性能,并在相同喷淋密度和气速条件下,与同尺寸光滑表面的共轭环填料进行比较。结果表示,共轭环翅填料的单位填料高度压降比普通共轭环填料平均增加15.2%,而传质单元高度则平均降低18.3%;在中等喷淋密度60 m3/(m2.h)以下,共轭环翅填料具有较好的综合性能。

Hydrodynamics and mass transfer performance of aluminum conjugate ring with fins on surface

Aluminum conjugate ring with fins on surface for packing columns was developed by using the technology of normal plough for fin formation on metal surface.The hydrodynamics and mass transfer performance of this fin packing were determined by the experiment of oxygen desorption from water in a 300 mm ID column.The result showed that the height of mass transfer unit H_(OL)(25 ℃) is decreased by a factor of 18.3% on an average,the loss of pressure drop is increased by 15.2%,compared with that of smooth surface packing in the same size,and also the fin packing is of advantages under low to moderate liquid load.