STEPPED DRAINAGE UNIT AND CONTACT VAPOR-AND-LIQUID DEVICE PROVIDED WITH SUCH UNIT Russian patent published in 2005 - IPC

FIELD: DRAINAGE UNITS.

SUBSTANCE: proposed drainage unit used in contact vapor-and-liquid devices is provided with platform at intermediate stage preferably with peripheral edge consisting of three edges and respective panels running downward from this edge, thus forming hermetic wall panel. Projections passing over chord from inner vertical edge of opposite wall panels are used as bearing facility held in column of vapor-and-liquid device by means of saddle beams. Main panel passes upward from inner edge of platform to chute located above. Sill may be provided above this chute which is used as projection of main panel. Main panel is secured to saddle beams and gives support for platform of stage, walls and projections. Bearing shoulder of chute passes inside from drainage unit forming support for upper chute. Vapor-and-liquid mixture is brought in contact with platform of stage after passage above sill from which liquid moves along central axis of flow in inclined position relative to side panels. From opposite ends of sill, liquid flows till contact with inlet area of lower chute past the platform. Walls of opposite panels may be inclined in external direction for change of volume of flow in lower part of drainage unit. According to one of versions, drainage unit is provided with projections passing over chord; these projections are made in form of wings with holes for equalizing the pressure; these projections pass from opposite sides of wall panel till they rest against column. Lower edge of panels and lower edge of projections control flow of liquid moving under lower edge to active zone of chute. Relative level of lower edges may be changed according to purpose. Additional supports include vertical bearing members running from panel of stage to lower chute; they are made in form of bearing brackets or in form of projections of terminal members.

EFFECT: enhanced reliability.

33 cl, 17 dwg