设计了一种新型导向筛板-浮片式浮阀复合塔板。在直径为1.2 m的圆形有机玻璃塔中进行冷模实验，测定了实验塔板在不同条件下的性能参数。实验表明，当液流强度一定、阀孔动能因子升高时，塔板压降、雾沫夹带量和传质效率增大，而漏液量会减小；当阀孔动能因子一定、液流强度升高时，塔板压降、雾沫夹带量和漏液量均会增大，但传质效率会减小。此外，对F1浮阀塔板和ADV浮阀塔板在相同实验条件下进行冷模实验，结果表明，新型导向筛板-浮片式浮阀复合塔板的流体力学性能更好。

A new type of composite tray,which is composed of new floating valve and flow-guided sieve tray,is designed,and is evaluated by performing cold model experiments in a circular plexiglass tower with a diameter of 1.2 m.The parameters of the experimental tray under different conditions are measured.Experiments show that the pressure drop,entrainment rate and mass transfer efficiency of the tray increase,and the weeping rate decreases when the liquid flow intensity remains constant and the kinetic energy factor of the valve hole increases.When the kinetic energy factor of the valve hole keeps constant and the liquid flow intensity becomes larger,the pressure drop,entrainment rate and weeping rate of the tray increase,but the mass transfer efficiency decreases.In addition,cold mold experiments are also proceeded on F1 type valve tray and ADV type valve tray under the same experimental conditions.The results show that the hydrodynamic performance of the experimental tray is the best.

郭璐(1993-),女,硕士生