An effective improved method

the installation of orifice plates at the branches of the impacting tee

was proposed to achieve equal quality distribution of gas-liquid two-phase flow in the impacting tee. First

this paper explains the reason why the impacting tee cannot achieve equal quality distribution through analyzing its phase distribution characteristics. Then

the distribution principle of the modified impacting tee is presented. The experiments are conducted in the air-water multiphase flow test loop. The results of the experiments show that this distribution device can improve the distribution characteristics of the gas-liquid two-phase flow apparently

and significantly reduce the deviation of the quality between the two branches. When the size of the orifice plates is appropriate

the quality between two branches can be nearly equal. At last

the factors influencing the equal quality distribution of the modified impacting tee and the equation of the best aperture ratio are presented on the basis of the theoretical model and the experimental data.