Abstract: This paper presents a new half-ellipse fixed valve tray，which has some improvements on traditional fixed valve trays. The hydrodynamic and mass transfer performance of half-ellipse fixed valve tray，sieve tray and F1 valve tray was experimentally studied with air-water-oxygen system in a 1200mm stainless steel column. The results showed that the half-ellipse fixed valve tray possessed，less entrainment，lower weeping and higher efficiency，but a little higher pressure drop than sieve tray as well as much lower pressure drop，less entrainment，and higher efficiency，but higher weeping than F1 valve tray.

摘要： 应用空气–富氧水系统，在直径1 200 mm不锈钢塔内，对半椭圆固定阀塔板进行了实验室研究，研究结果表明：半椭圆固定阀塔板的压降略高于筛孔塔板，比F1浮阀塔板小得多，雾沫夹带率低于筛孔塔板和F1浮阀塔板，泄漏率比筛孔塔板低，比F1浮阀塔板高，传质效率优于筛孔塔板和F1浮阀塔板，是一种综合性能优异的塔板。