不同轻重比例的十字旋阀塔板压降的实验研究  

Pressure drop of the cross-type valve tray with different valve weighed proportion

作　　者：张秋香[1] 赵艳艳 赵培[1] ZHANG Qiu-xiang;ZHAO Yan-yan;ZHAO Pei(College of Chemical Engineering,East China University of Science and Technology,Shanghai 200237,Chin)

机构地区：[1]华东理工大学化工学院,上海200237

出　　处：《化学工程》2018年第1期15-20,共6页Chemical Engineering(China)

摘　　要：在直径为1 000 mm、板间距600 mm、内置4块塔板的不锈钢圆塔中,以空气-水为介质,对十字旋阀塔板的压降进行了实验研究。在相同开孔率15.52%下,考察了3个液流强度和3个堰高条件下,对不同轻重比例(100%,86%,70%,50%,0)十字旋阀塔板压降的影响。结果表明:相同液流强度和堰高条件下,不同轻重比例塔板压降的关系是0>50%>70%>86%>100%;相同轻重比例和堰高条件下,液流强度越大,塔板压降越大;相同轻重比例和液流强度条件下,堰高越大,塔板压降越大;这3种因素导致的塔板压降差异均随着阀孔动能因子F0的增大而逐渐缩小。The pressure drop of the cross-type valve tray was tested in a diameter of 1 000 mm,plate spacing of 600 mm stainless steel column with 4 trays by using air-water system. Under the same opening rate of 15. 52%,the influence of the liquid weir load and outlet weir height on pressure drop with different valve weighed proportion（ 100%,86%,70%,50%,0） were studied. The results show that the pressure drop with different valve weighed proportion is 0 〉 50%〉 70%〉 86% 〉 100% at the same liquid weir load and outlet weir height. At the same outlet weir height and valve weighed proportion,the pressure drop increases with the increase of liquid weir load.At the same liquid weir load and valve weighed proportion,the pressure drop increases with the increase of the outlet weir height. The discrepancies resulted from these three factors gradually diminish with the increase of valve hole kinetic energy factor F0.

关 键 词：十字旋阀塔板 压降 轻重比例 液流强度 堰高 

分 类 号：TQ053.5[化学工程]