Abstract: The hydrodynamic characteristics of the new directed bridge valve trays were tested in a φ1000 mm column using air-water system.The influences of liquid flow rate per unit weir length and weir height on weeping and pressure drop were studied. The performance of standard F1 valve was also compared with new directed bridge valve trays. The results showed that the gas distribution on the new directed bridge valve trays was fine and even，the foaming height was stable，and the contact of gas and liquid was adequate，Compared with F1 valve，new directed bridge valve trays pressure drop was lower by 10％～30％ under the same testing conditions．The new directed bridge valve trays had good hydrodynamic characteristics.

摘要： 在φ1000 mm的圆塔内，采用空气–水系统对新型导向桥阀塔板的流体力学性能进行了测试，考察了液流强度、出口堰高等因素对雾沫夹带和塔板压降的影响，并且与标准的F1型浮阀进行了对比实验。结果表明：新型导向桥阀塔板上气体分散均匀，泡沫层高度稳定，气液接触充分，在相同条件下压降比F1浮阀低10％～30％。具有较好的流体力学性能。