新型椭圆固定阀塔板的流体力学性能  

HYDROMECHANICAL PERFORMANCE OF NEW ELLIPTICAL FIXED VALVE TRAY

作　　者：邹小艺 赵培[1] 孙浩[1] Zou Xiaoyi;Zhao Pei;Sun Hao(College of Chemical Engineering,East China University of Science and Technology,Shanghai 200237)

机构地区：[1]华东理工大学化工学院,上海200237

出　　处：《石油炼制与化工》2023年第9期51-61,共11页Petroleum Processing and Petrochemicals

摘　　要：在现有固定阀塔板的基础上进行结构改进,开发一种新型抗堵塞塔板——椭圆固定阀塔板。采用空气-水为试验体系,在直径1200 mm的冷模塔内对椭圆固定阀塔板的流体力学性能进行试验研究,通过改变结构参数和操作参数测定了塔板压降、雾沫夹带及漏液率。结果表明:椭圆固定阀塔板的雾沫夹带率和漏液率较低,压降较高。从整体上相较筛孔塔板有明显改观,气相负荷性能表现更好,综合性能更优异。同时为了优化塔板结构设计,对椭圆固定阀塔板两相流场进行了计算流体力学(CFD)分析,进一步提升了塔板性能,拓宽椭圆固定阀塔板在石化领域的应用前景。A new type of anti-clogging trays-elliptical fixed valve trays was developed based on the improvement of the existing fixed valve trays.An experimental study was carried out on the fluid mechanics performance of the elliptical fixed valve tray in a 1200 mm diameter cold model column,using air-water as the experimental system,the tray pressure drop,entrainment and leakage were measured by changing structural and operational parameters.The results showed that the entrainment rate and leakage rate of foam were lower and the pressure drop was higher on the tray of elliptical fixed valve.Compared with sieve tray,the performance of gas loading was better and the comprehensive performance was better.In order to optimize the tray structure design,the two-phase flow field of elliptical valve trays was analyzed by computational fluid dynamics(CFD),which could further improve tray performance and broaden the application prospects of elliptical valve trays in the petrochemical industry.

关 键 词：固定阀塔板 筛孔塔板 流体力学性能 数值模拟 

分 类 号：TQ053.5[化学工程] TE65[石油与天然气工程—油气加工工程]