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应用空气 -水系统 ,在直径 60 0 mm的塔内 ,对矩形微分浮阀塔板的流体力学进行了试验研究 ,测定了临界孔速、塔板压降、雾沫夹带率和流体泄漏率 ;应用空气 -水 -氧气物系 ,测定了矩形微分浮阀塔板的传质效率 ;并与 F1型浮阀塔板进行了比较。结果表明 ,矩形微分浮阀塔板具有良好的流体力学和传质性能。对试验数据进行了关联 ,获得了计算阀孔临界气速、塔板压降、雾沫夹带率和泄漏点孔速的关联式 ,可用于该塔板的设计计算。
The hydrodynamics of rectangular differential valve trays were experimentally studied in an air-water system with a diameter of 60 mm. The critical hole velocity, plate pressure drop, entrainment rate and fluid leakage rate were measured. Mass transfer efficiency of rectangular differential valve trays was measured by air-water-oxygen system. The results were compared with those of F1 type valve trays. The results show that the rectangular differential valve tray has good hydrodynamics and mass transfer performance. Associated with the experimental data, the correlation between the critical gas velocity of the valve hole, the pressure drop of the plate, the entrainment rate of the mist and the hole velocity at the leak point was obtained, which can be used in the design and calculation of the plate.