FILM FILL-PACK FOR INDUCEMENT OF SPIRALING GAS FLOW IN HEAT AND MASS TRANSFER CONTACT APPARATUS WITH SELF-SPACING FILL-SHEETS

摘要

A film fill-pack has a plurality of fill-sheets with an ordered array ofridges and groovesgenerally extending above a planar surface on both the obverse and reversesurfaces of a fill-sheet,which fill-sheets at an assembled state provide the ridges and grooves offacing obverseand reverse surfaces of adjacent fill-sheets in an arrangement providing aplurality of channelsbetween adjacent fill-sheets for gas flow therethrough and where the orderedarrangement ofridges and grooves induces spiraling of the gas flow through the channels forpromotion ofimproved heat transfer; and, where the fill-sheets further include a spacingarrangementproviding a compact nesting of adjacent sheets with minimal sheet-to-sheetdisplacement at leastat two of the edges for compact handling, transfer and storage with a selfspacing of adjacentfill-sheets at assembly of the film fill-pack.