SCA型高效规整填料的开发及其性能研究

研究开发了一种新型金属丝网波纹填料—直线与弧线交替（SCA）型规整填料，该填料为独特的弧线与直线交替式结构，兼具了直线、弧线型等多种典型填料的优点。在透明的树脂玻璃塔内进行冷态模型实验，通过将700、800、1 000 m²/m³的3种大比表面积的SCA型填料与传统填料进行比较，研究其流体力学性能与传质性能。实验对比结果显示：在相同操作条件下，SCA700型填料的干塔压降仅为传统CY型填料的67.8%，平均降低了32.2%；湿塔压降仅为传统CY型填料的65%，平均降低了35%；液泛气速平均高出20%，等板高度值平均减小了近24%。上述结果表明，SCA型填料兼顾了填料的传质性能与流体力学性能，在减小压降、增大操作弹性与传质效率方面均有显著进步。

The development and performance of high efficiency SCA type structured packing

A new type of wire mesh corrugated packing-SCA type structured packing has been designed and its propoerties studied. The unique curved and straight line structure of this packing offers all the advantages of straight type, arc type and other typical packings. In transparent Plexiglass column, three kinds of SCA-type packings with large specific surface area (700, 800, 1 000 m²/m³) were subjected to a cold model test, and then the hydrodynamic and mass transfer properties were compared with conventional packing. Compared with the traditional CY700 packing, the experimental results show that the dry pressure drop of the SCA700 type packing is only 67.8% of the traditional CY type. Furthermore, the wet pressure drop was only 65% of the traditional CY type. Moreover, the flooding gas velocity was increased by nearly 20%, and the HETP value was reduced by nearly 24%. These results indicate that the SCA-type packing improves both the hydrodynamic and mass transfer performance. As a result, this new type of packing offers significant benefits, including reduced pressure drop, increased operating range and increased mass transfer efficiency.