초록 ▼

A gas-flow heat exchanger comprises a sinuously wound foil strip (11) providing a stack of parallel pockets (12) each of which contains a moulded plastics skeletal insert (13). The insert (13) comprises a flat rectangular frame (14) supporting within it a set of parallel baffles (15) which define a

A gas-flow heat exchanger comprises a sinuously wound foil strip (11) providing a stack of parallel pockets (12) each of which contains a moulded plastics skeletal insert (13). The insert (13) comprises a flat rectangular frame (14) supporting within it a set of parallel baffles (15) which define a platen of passageways (16) extending between inlet and outlet openings (17 and 18) provided in the frame (14). Webs (20) lie in the medial plane of the frame and support the baffles (15). Holes and rebates (24, 25) are provided in the lower part of the insert to drain water from its interior. The foil (11) may be coated with hydrophilic material on one side.

대표청구항 ▼

[ I claim:] [16.] A gas flow heat exchanger comprising:(a) a set of parallel, spaced, heat-conductive areas defining between them a stack of at least first and second adjacent pockets each flanked by two of said areas,(b) at least first and second flat frames removably located in said first and seco

[ I claim:] [16.] A gas flow heat exchanger comprising:(a) a set of parallel, spaced, heat-conductive areas defining between them a stack of at least first and second adjacent pockets each flanked by two of said areas,(b) at least first and second flat frames removably located in said first and second pockets respectively, each frame having two opposite faces with a thickness of the frame therebetween, a medial plane, and an inside and an outside, and each frame being formed within its thickness with a gas inlet opening and a gas outlet opening which extend from the inside to the outside of the frame, the first and second frames being differently oriented,(c) a set of parallel, spaced and partially-curved baffle strips contained within the thickness of each frame and forming a unitary assembly therewith, the baffle strips extending transversely of the medial plane of the frame and having longitudinally extending edges engaging the respective areas flanking the pocket containing the frame, and(d) a flat layer of open-sided parallel passageways extending through the medial plane of each frame to guide the flow of gas through the pocket from the gas inlet opening to the gas outlet opening, each passageway being defined by a pair of neighboring baffle strips and the opposed surfaces of the two heat-conductive areas flanking the pocket, andwherein the baffle strips of the first frame, in the first pocket, register with the baffle strips of the second frame, in the second pocket, over substantially the entire length of the baffle strips so that the passageways defined in the first frame are substantially aligned with the passageways defined in the second frame and the heat conductive area between the first and second frames is sandwiched between the baffles of the first and second frames respectively and is held at an edge between interfitting portions of the first and second frames.