旋转浮阀塔板的流体力学性能研究

Hydrodynamic Performance of Rotary Valve Trays

在内径600 mm的有机玻璃塔内,以空气-水为物系,对旋转浮阀塔板的流体力学性能进行研究。测定了塔板压降、漏液量和雾沫夹带等流体力学性能参数,并与F1型浮阀塔板进行对比。实验结果表明,旋转浮阀塔板的关闭平衡点的阀孔动能因子(F0)比F1型浮阀塔板约高3.70%,开启平衡点的F0比F1型浮阀塔板高3.54%;当F0大于关闭平衡点而小于开启平衡点时,旋转浮阀塔板的压降和F1型浮阀塔板压降基本相同;当F0大于开启平衡点时,旋转浮阀塔板的压降比F1型浮阀塔板高3.79%～9.73%;旋转浮阀塔板的漏液分率比F1型浮阀塔板约低21.19%;旋转浮阀塔板的雾沫夹带率比F1型浮阀塔板低50%以上;旋转浮阀塔板的操作弹性大于F1型浮阀塔板。

The hydrodynamic performance of rotary valve trays was experimentally studied with an air-water system in an organic glass column with an inner diameter of 600 mm.The pressure drop,weeping and entrainment of the rotary valve trays were measured and compared with those of F1 valve trays.The F-factors（kinetic energy factor） of the rotary valve tray holes are 3.70% and 3.54% larger than those of the F1 valve tray holes at valve-closed balance point and at valve-opened balance point,respectively.The pressure drop of the rotary valve trays is similar to that of F1 valve trays when the F-factors are between the closed balance point and opened balance point.When the F-factor exceeded the opened balance point,the pressure drop of the rotary valve trays is 3.79%-9.73% higher than that of the F1 valve trays.The weeping of the rotary valve trays is 21.19% lower than that of the F1 valve trays.The entrainment of the rotary valve trays is 50% less than that of the F1 valve trays.The operation performance of the rotary valve trays is much better than that of the F1 valve trays.