Mass transfer device
AssigneeNorton Chemical Process Products Corporation
InventorsRichard P. Hauser, Bruce C. Taylor, John Harris, Joe Schirra, Frank Rukovens
Life of this patent
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Abstract
A mass transfer device is provided in the form of a tray having moveable valves which includes perforations spanned by bridge members shaped to divert liquid flowing in the design flow direction around the perforation such that gas rising through the perforation causes the valve to open and then encounters the liquid flow essentially at right angles.
Claims8
A mass transfer tray having at least one perforation therein and a design flow direction in the vicinity of said perforation and, spanning the perforation, a bridge member comprising first and second support legs connected by a solid cover member oriented in the design flow direction in the vicinity of the perforation and wide enough to completely cover the perforation, the legs of said bridge member being adapted to move by a fixed amount within slots in the tray in response to pressure differences above and below the tray and to remain attached to the tray so as to span the perforation, the first leg being a solid member located upstream of the perforation in the design flow direction and having a width that is at least 5% wider than the greatest width of the perforation transverse to the design flow direction.
A mass transfer tray having at least one perforation therein and a design flow direction in the vicinity of said perforation and, spanning the perforation, a bridge member comprising first and second support legs connected by a solid cover member oriented in the design flow direction in the vicinity of the perforation and wide enough to completely cover the perforation, the support legs of said bridge member being adapted to move within slots in the tray in response to pressure differences above and below the tray and to be attached to the tray so as to span the perforation, the first support leg being a solid member located upstream of the perforation in the design flow direction, wherein the perforation has a different shape from the cover member and wherein the first support leg is at least 5% wider than the perforation at any point transverse to the design flow direction.
Dependencies are inferred from the claim text.