TPI型规整填料的流体力学及传质性能研究  

The hydrodynamic and mass transfer performance of TPI-type structured packing

作　　者：田馨 魏宏大[2] 郭鑫宇[1] 汤效飞 舒亚胜 李群生[1] 

机构地区：[1]北京化工大学化学工程学院,北京100029 [2]北京航天动力研究所,北京100076

出　　处：《北京化工大学学报（自然科学版）》2017年第6期31-36,共6页Journal of Beijing University of Chemical Technology(Natural Science Edition)

基　　金：国家"973"计划(2013CB733603)

摘　　要：设计开发了一种新型波纹脉冲型填料,该填料结合直线结构和脉冲结构的优点,有效地降低了塔压降,并且显著提高了传质性能。实验采用氧解吸的方法对三折线脉冲(TPI)填料进行冷膜实验,测定了3种不同比表面积的TPI型填料的流体力学以及传质性能,并与传统的CY型填料进行了对比。相对于CY700型填料,TPI700型填料的流体力学和传质性能均有较为显著的提高。以流量L=22.49 m3/(m2·h)的情况为例,TPI700型填料的塔压降比CY700型平均降低了约39.4%,等板高度平均降低了约16.6%,液泛气速提高了约16.4%。结果表明,TPI型填料的性能较为优良,可以应用于高分离要求的行业。A new type of corrugated impulse packing combining the advantages of straight and impulse structures has been designed. The new packing can effectively reduce the pressure drop and improve the mass transfer performance during separation processes. Cold pilot model experiments were used to study the TPI packing by the method of oxygen desorption. The hydrodynamics and mass transfer properties of three type of TPI packing materials with different surface areas were studied and compared with the traditional CY type packing. Compared with CY700 type packing,the TPI700 type packing afforded a remarkable improvement in the fluid mechanics and mass transfer performance. When L = 22. 49 m3/（ m2· h）,the tower drop with TPI700 was about 39. 4% lower,the height equivalent of theoretical plate（ HETP） was reduced by about 16. 6% and the flooding gas velocity was about 16.4% higher on average,when compared with CY700. The results show that the performance of the TPI type packing is much better than the traditional material,and it should find applications in industries with high separation requirements.

关 键 词：TPI型填料 脉冲 压降 传质性能 

分 类 号：TQ053[化学工程]