CAJ | 학술논문

对水力喷射空气旋流器（WSA）的中心排气管直径 De和排气管插入深度 S 进行了设计优化研究，实验考察了不同De和S对WSA脱氨传质系数KLa和气相压降的影响，提出了综合评价传质过程效率的概念——单位压降传质效率ηp ，讨论了 De和S的设计取值。研究表明，当De增大时，KLa 和气相压降均随之降低，较小 De的WSA具有较高的气液传质性能，但气相压降比较大，而KLa和气相压降均随S增大而增大。综合能效关系表明，随着De的增大ηP增大，随着S的增大ηP出现先增大后降低的趋势，WSA设计中De与WSA直径D之比De/D宜为0.42～0.53，S与WSA筒体长度H之比S/H适宜取值约为0.70。
대수력분사공기선류기（WSA）적중심배기관직경 De화배기관삽입심도 S 진행료설계우화연구，실험고찰료불동De화S대WSA탈안전질계수KLa화기상압강적영향，제출료종합평개전질과정효솔적개념——단위압강전질효솔ηp ，토론료 De화S적설계취치。연구표명，당De증대시，KLa 화기상압강균수지강저，교소 De적WSA구유교고적기액전질성능，단기상압강비교대，이KLa화기상압강균수S증대이증대。종합능효관계표명，수착De적증대ηP증대，수착S적증대ηP출현선증대후강저적추세，WSA설계중De여WSA직경D지비De/D의위0.42～0.53，S여WSA통체장도H지비S/H괄의취치약위0.70。
Water-sparged aerocyclone (WSA) is a new gas-liquid mass transfer equipment, which takes the advantage of coupling effect of air cyclone and liquid jet fields. In order to improve its mass transfer performance and establish design principles, the effect of diameter (De) and length (S) of the vortex finder in the WSA on its mass transfer performance and air pressure drop in air stripping of ammonia was investigated and optimized. A new concept, mass transfer efficiency per gas pressure drop,pη, and its calculation equation were put forward. The WSA with smallerDe and longerSshowed higher mass transfer efficiency than that with largerDe and shorter S in air stripping of ammonia. However, this kind of WSA had higher air pressure drop, which would consume more energy. Calculation ofηp, whichwas a comprehensive indicator considering energy consumption and mass transfer efficiency, showed that it increased with the increase ofDe/D and S/H,but it deceased a little whenS/H increased from 0.71 to 0.93. The optimalDe/D andS/Hshould be0.43 to 0.53 and 0.70, respectively. These results could be used as a guide for the design of WSA with good mass transfer performance.