Back to results
US 4,093,435 AGranted
Total heat energy exchangers
AssigneeWing Industries, Inc.
InventorsAlbert J. Marron, Walter J. Markowski
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeWing Industries, Inc.
InventorsAlbert J. Marron, Walter J. Markowski
Estimating the term…
Rotary regenerative total heat energy exchanger having an asbestos-free heat exchange media formed by spirally winding flat and corrugated webs of aluminum foil and/or fully bleached, 45 lb. Kraft paper constituted by 84% fibres and 16% salts. The contained salts are 90% ammonium sulfide and 10% diammonium phosphate. Wheel thickness for efficient transfer of both sensible heat and latent heat with minimal air pressure drop across the wheel is a multiple of from 100 to 400, preferably 125 to 200, times the flute height of the corrugation web of the media. Although media may be substantially all-paper, preferred embodiments provide media having both a flat web and a corrugated web of aluminum foil, a pair of paper webs being disposed respectively on the opposite surfaces of either the flat foil web or the corrugated foil web. Contiguous webs need not be adhesively secured together although, in modified embodiments, strips of neoprene rubber or silicate adhesive may be disposed between webs, or driable neoprene can be sprayed on end faces of wheel. Annular metal bands may be disposed at intermediate radial locations to strengthen the media. A metal rim forms the outer periphery of the wheel, and angularly spaced apart spokes are set into the media and extend radially between the hub and the rim. End edges of the peripheral rim, media, intermediate annular bands, and spokes are flush with each other.
Total energy exchange apparatus having a media for transferring sensible and latent heat energy, accompanied or not by moisture, between two streams of air within which the apparatus is situated, said media comprising a plurality of layers of corrugated sheet material and a corresponding plurality of layers of flat sheet material, said layers of corrugated and flat sheet materials being interleaved alternately with each other and the corrugations of said layers of corrugated sheet material being parallel to each other so that, together with their respectively adjacent layers of flat sheet material, they provide passages for the flow of said air through said media, the height of the passage openings formed by said corrugations being not less than substantially 0.055 inch nor more than substantially 0.12 inch, and the length of said passages being within the range of from substantially 100 to substantially 400 times said height of said passage openings, said layers of at least one of said pluralities of layers comprising cellulosic paper material treated with ammonium sulfide and diammonium phosphate.
Total energy exchange apparatus having a media for transferring sensible and latent heat energy, accompanied or not by moisture, between two streams of air within which the apparatus is situated, said media comprising a hub, a plurality of layers of corrugated sheet material and a corresponding plurality of layers of flat sheet material interleaved alternately with each other, said pluralities of layers being formed by winding respective strips of each of said materials on and around said hub whereby said media is disposed within an annular area extending outwardly from said hub and the respective side edges of at least alternate ones of said strips are substantially coplanar and constitute the respectively opposite end faces of said wound media, the corrugations of said layers of corrugated sheet material being parallel to each other so that, together with their respectively adjacent layers of flat sheet material, they provide for the flow of said air through said media, the height of the passage openings formed by said corrugations being not less than substantially 0.055 inch nor more than substantially 0.12 inch, and the length of said passages being within the range of from substantially 100 to substantially 400 times said height of said passage openings, said layers of at least one of said pluralities of layers comprising cellulosic paper material, an annular metal band circumscribing and supporting said media in its said wound relation, and means retaining said opposite end faces of said wound media within their respective planes, said strips of corrugated and flat sheet materials being the respective plies of single-faced corrugated paperboard and each being fully bleached, 45 lb. density Kraft paper having a thickness of from about 4 mils (0.004 inch) to about 6 mils (0.006 inch) and constituted by weight of substantially 84% paper fibres and substantially 16% ammonium sulfide and diammonium phosphate, said ammonium sulfide and diammonium phosphate being proportioned substantially 90% by weight of ammonium sulfide and substantially 10% by weight of diammonium phosphate.
In a make-up air supply system having a total energy exchange wheel mounted for rotation spanning across an air supply duct leading from the outside atmosphere into a room or the like and a parallel adjacent exhaust air duct from said room to said outside atmosphere, the improvement comprising a media for said wheel providing parallel tubular passages aligned with said airstreams for the passage of air through said wheel, the diameter of each of said passages being not less than substantially 0.055 inch nor more than substantially 0.12 inch and the length of said passages being within the range of from substantially 100 to substantially 400 times said passage diameter, said media comprising cellulosic paper material constituted by substantially 84% by weight of paper fibres and substantially 16% by weight of ammonium sulfide and diammonium phosphate, and the temperature and humidity conditions of the air received in said room through said media being in other than straight line relationship, when plotted on a psychrometric chart, with the temperature and humidity conditions of said outside atmosphere and said room air.
Total energy exchange apparatus having a media for transferring sensible and latent heat energy, accompanied or not by moisture, between two streams of air within which the apparatus is situated, said media comprising a hub, a plurality of layers of corrugated sheet material and a corresponding plurality of layers of flat sheet material interleaved alternately with each other, said pluralities of layers being formed by winding respective strips of each of said materials on and around said hub whereby said media is disposed within an annular area extending outwardly from said hub and the respective side edges of at least one of said strips are substantially coplanar and constitute the respectively opposite end faces of said wound media, the corrugations of said layers of corrugated sheet material being parallel to each other so that, together with their respectively adjacent layers of flat sheet material, they provide passages for the flow of said air through said media, and means retaining said media in its said wound relation, said corrugated sheet material comprising metal foil material, and said flat sheet material comprising a ply of flat metal foil material and a ply of fire-retardant cellulosic paper material.
Dependencies are inferred from the claim text.