VORTEX TRAY Russian patent published in 1998 - IPC

FIELD: chemical, petrochemical, gas and other allied industries. SUBSTANCE: vortex trays are installed one under another in vertical cylindrical column. Vortex tray includes horizontal round plate with central vertical steam branch pipe above which cap is axisymmetrically installed. Lower part of cap side walls are perforated. Located above plate is vertical discharge pipe whose lower edge is located from plate at a distance equalling 1/4 of inner diameter of discharge pipe. Installed into plate is overflow pipe whose upper edge is located above perforations in gap side walls, and lower part serves as discharge pipe of underlying tray. Installed round central steam branch pipe is semicircle recess branch pipe above which semicircle steam cap is installed with perforations in lower part of its side walls. Discharge pipe is located between central cap and edge of semicircle cap. Overflow pipe is located between column wall and the other edge of semicircle cap. Locations of overflow and discharge pipes on adjacent upper and underlying trays are mutually varied as compared with the given tray. Tightly installed above plate is vertical partition running diametrically above central cap and above external perimeter of semicircle cap up to its edge where it contacts column wall. Partition height equals distance between tray over column height. Perforations in tray plate are made in the form of arched slots with convexity upward and their axes directed from discharge pipe towards pipe over channel between side walls of central and semicircle caps and column walls. Perforations in side walls of central and semicircle caps are made in the formed of arched slots with convexity outside and their axes directed at an acute angle to vertical down and to the same side coinciding with direction of axes of arched slots in tray plate. Arched slots in plates and in cap side walls on adjacent in height trays are opposite in direction. EFFECT: higher efficiency of mass transfer between gas and liquid due to increased dwelling time of liquid in contact with gas. 7 dwg