Experimental Study On The Hydrodynamic Performance And Mass Transfer Efficiency Of Gradient Ringent Trapezoidal Valve Tray

Tray column is a type of important gas-liquid contact equipment in the chemical and petroleum industry,and it has recently shown strong growth tendency in a new competition with paced column.The gradient ringent trapezoidal valve trays of four different weight were developed in this paper.The hydrodynamic performance of these plates was investigated by using air-water system in a column with side length of 500mmx500mm,and the correlations of plate pressure-drop,weeping and entrainment with weir height,liquid strength and kinetic energy factor based on valve holes were obtained.The mass transfer efficiency of gradient ringent trapezoidal valve trays of different weight was determined by experiment of CO2 desorption.It showed the mass transfer efficiency of gradient ringent trapezoidal valve trays of different weights was quite defferent.In this paper , the gradient ringent trapezoidal valve trays of four different transverse space between the valves are experimentally studied on its hydrodynamic performance and mass transfer efficiency,the result of the experiment shows that the transverse space between the valves has obvious effect on hydrodynamic performance and mass transfer efficiency. There also had the three valve trays F1 valve tray, directed trapezoidal valve tray, gradient ringent trapezoidal valve tray been comparative experimental studied, the result of the experiment shows that the gradient ringent trapezoidal valve tray's hydrodynamic performance and mass transfer efficiency is better than the other. Wish this paper's study could be used conveniently in industrial applications.