Liquid-gas contact apparatus and method for making the same

Claim 1

A liquid-gas contact apparatus comprising a hollow casing including a generally vertically extending sidewall and an air inlet opening formed therein; a contact bed mounted in said casing and having upper and lower spaced and generally parallely extending surfaces inclined from positions above the air inlet opening in a downward angular direction toward the interior of the casing; said contact bed composed of a plurality of liquid-gas contact units located in predetermined positions with respect to each other to form said bed; each of said units being formed from a plurality of interconnected layers of sheet material, at least some of which are formed of corrugated sheet material to define a plurality of liquid gas passageways between adjacent layers; said units being positioned in said casing with said layers of sheet material and the passageways between adjacent layers lying in vertical planes extending parallel to the plane of said inlet opening and vertical sidewall; said units each having upper and lower spaced parallely extending surfaces inclined in a downward angular direction from the casing sidewall toward the interior of the casing across said sheets, and being displaced downwardly relative to one another towards the interior of the casing with their upper and lower surfaces substantially in alignment to provide the upper and lower surfaces of said contact bed; and said contact units having a generally rhomboid peripheral configuration when viewed in section transversely of the layers thereof with said rectangular sides

Claim 10

A method for manufacturing gas-liquid contact units consisting of upper and lower superimposed contact unit elements wherein the upper contact unit element has an inclined upper surface and a lower generally horizontal surface and the lower contact unit element has an upper generally horizontally extending surface facing the lower surface of the upper unit element and a lower inclined surface extending in parallel spaced relation to the upper inclined surface of the upper unit element, said method comprising the steps of first forming a pack workpiece by interconnecting a plurality of parallely extending generally rectangular layers of sheet material at least some of which layers have corrugations formed therein thereby to define passageways between the layers lying in vertical planes that are parallel to the layers of sheet material; thereafter cutting said workpiece into two contact unit elements along a section plane forming an oblique angle to the rectangular surface of the layers of sheet material whereby the cut unit elements can be shipped without changing their position in a rectangular container; and thence exchanging the positions of the unit elements, to assemble the units, with the obliquely cut surfaces positioned in spaced parallel relation to form said upper and lower inclined surfaces.

Claim 11

A method for manufacturing gas-liquid contact units consisting of upper and lower superimposed contact unit elements wherein the upper contact unit element has an inclined upper surface and a lower generally horizontal surface and the lower contact unit element has an upper generally horizontally extending surface facing the lower surface of the upper unit element and a lower inclined surface extending in parallel spaced relation to the upper inclined surface of the upper unit element, said method comprising the steps of first forming a pack workpiece by interconnecting a plurality of parallely extending generally rectangular layers of sheet material at least some of which layers have corrugations formed therein thereby to define passageways between the layers lying in vertical planes that are parallel to the layers of sheet material; thereafter cutting said workpiece into two contact unit elements along a section plane forming an oblique angle to the rectangular surface of the layers of sheet material whereby the cut unit elements can be shipped without changing their position in a rectangular container; and thence exchanging the positions of the unit elements, to assemble the units, with the obliquely cut surfaces positioned in spaced parallel relation to form said upper and lower inclined surfaces.