VALVE PLATE Russian patent published in 2003 - IPC

FIELD: construction of bubbling plates of absorption and rectifying apparatus; gas, oil, petrochemical and other industries. SUBSTANCE: plate has perforated base with valves made in form of plates which are provided with side wall with lift limiters made in form of lugs cut from side walls of valves. Novelty of invention consists in increased working perimeter of valves which increases in its turn phase contact surface on plate which is necessary for intensive mass exchange. Edges of valve plates oriented along motion of flow of liquid are bent downward and have sinusoidal or comb-like profile. Ports formed in upper portion of side walls of valves due to bending lugs of lift limiters outside valves are used for supply of additional flow of gas to plate surface. EFFECT: enhanced efficiency. 9 dwg