Study On The Liquid Lift-Up Of LLC-Tray And Cap Of Inverse Basin Tip

The clear liquid height, gradient of liquid level and liquid lift-up of LLC-Tray and the cap of inverse basin tip were measured in the rectangle experiment column with the side of 600 ×800 and the mathematic model of liquid lift-up of LLC-Tray was established. The detailed results are as follows.1.The clear liquid height of LLC-Tray increases with the increase of liquid flow and the height of weir but hardly varies with the gas speed.2.The mainly influencing factors of gradient of liquid level of LLC-Tray are liquid flow and the height of weir. Gradient of liquid level increases with the increase of liquid flow and the height of weir.3.The liquid lift-up of LLC-Tray decreases with the hole-air-speed and increases with the clear liquid height. The liquid lift-up of the cap of inverse basin tip increases with the hole-air-speed, the clear liquid height and the bottom gap. The effects of liquid lift-up on pressure drop, weeping quantity liquid entrainment and upper-lower limit of air speed are also analyzed.4.On the basis of conversation of energy the mathematic model of liquid lift-up was established which can describe the experimental data.