Y型导向固阀塔板的雾沫夹带性能  

Entrainment performance of Y-type guided fixed valve tray

作　　者：岳锡荣 赵培[1] 鲁宽华 牛静龙 YUE Xirong;ZHAO Pei;LU Kuanhua;NIU Jinglong(College of Chemical Engineering,East China University of Science and Technology,Shanghai 200237,China;Changsha Boneng Technology Co.,Ltd.,Changsha 410000,China)

机构地区：[1]华东理工大学化工学院,上海200237 [2]长沙博能科技股份有限公司,长沙410000

出　　处：《化学工业与工程》2023年第4期94-101,共8页Chemical Industry and Engineering

摘　　要：在直径1.2 m、板间距0.45 m、内置4块塔板的有机玻璃冷模塔内,采用空气-水系统,对Y型导向固阀塔板进行了雾沫夹带性能研究。考察了3种出口堰高、3种液流强度和2种开孔率的改变对Y型导向固阀塔板雾沫夹带性能的影响,并与筛孔型塔板进行对比实验研究。结果表明,Y型导向固阀塔板的雾沫夹带性能随阀孔动能因子的增加呈现出稳定的规律性,在低堰高、低液流强度下表现更优;对比筛孔型塔板,Y型固阀的设计结构表现出明显的抗雾沫夹带优势,同时具有更高的气相负荷操作上限。通过实验数据拟合出了2种开孔率的Y型导向固阀塔板雾沫夹带率的模型方程式,为后续塔板的设计与高黏度物系的分离研究提供参考。Using the air-water system,the entrainment performance of Y-type guided fixed valve tray was studied in a plexiglass cold mold tower with diameter of 1.2 m,plate spacing of 0.45 m and four trays in-side.The effects of changing three outlet weir heights,three liquid flow intensities and two opening rates on the entrainment performance of Y-type guided fixed valve tray were investigated,and the experimental results were compared with the sieve trays.The results show that the entrainment performance of Y-type guided fixed valve tray has a stable regularity with the increase of the valve hole kinetic energy factor,and it performs better under low weir height and low liquid flow intensity.Compared with the sieve tray,the structure of Y-type guided fixed valve shows obvious advantages of anti-entrainment and has a higher upper limit of gas phase load operation.The model correlation formula of entrainment rate of Y-type guided fixed valve tray with two kinds of opening rate was obtained by fitting the experimental data,which can provide reference for the design of subsequent trays and the separation of high viscosity system.

关 键 词：导向固阀塔板 筛孔塔板 雾沫夹带 模型方程式 液泛点气速 

分 类 号：TQ053.5[化学工程]