PACKING OF RECTIFICATION COLUMN Russian patent published in 1997 - IPC

FIELD: technological rectification equipment. SUBSTANCE: the offered packing has vertical tube 1 accommodating heat- and mass-transfer devices square to its axis. Heat- and mass-transfer devices have porous members spaced over tube axis. Porous members are formed of alternating trays 2 and 3 separated by circular spacer 4. Tray 2 is made in form of disk with central hole 5 and periphery flanging 6 directed upward and tightly engageable with tube 1 over its entire perimeter. Central hole of tray 2 may be circular, star-shaped or polygonal. Tray 3 is made in form of flat part formed by polygon 7 engageable with its extreme protruding sections 8 with tube 1 to form gap between tray 3 and tube 1 to pass steam. Flat part may be made in form of circle 9 with projections 10 on edges or in form of circle 11 with cutouts limited by arches 12. Disk and flat part may be made of screen panel. Spacer 4 may be made in form of closed into ring wire spiral with extended coils in form of twisted band closed into ring, or in form of cross-shaped member. This member may be formed by wire spiral with extended coils. All described structural members of packing are permeable for steam. EFFECT: higher efficiency. 8 cl, 11 dwg