Heat exchanger

F - Mech Eng,Light,Heat,Weapons – 28 – D

Patent

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Details

F28D 9/00 (2006.01) F24F 12/00 (2006.01) F24F 13/30 (2006.01) F28F 3/08 (2006.01) F28F 9/007 (2006.01) F28F 21/00 (2006.01) F28F 21/06 (2006.01)

Patent

CA 2403169

A gas-flow heat exchanger comprising a set of parallel, spaced, heat-conductive areas providing between them a stack of pockets each containing parallel baffles (24) which define a platen of passageways (26) guiding the gas-flow path through the pocket between inlet and outlet openings (22, 23). The openings being arranged in four parallel lines at the sides of the stack, two of the lines respectively containing the inlet and outlet openings (22, 23) associated with the gas flow paths of alternative pockets. The remaining two lines respectively containing the inlet and outlet openings associated with the remaining pockets. Each pocket containing a removable frame (21) formed with the openings provided at the ends of the gas flow path through it and supporting within the frame the parallel baffles (24) which divide the gas-flow path into the platen of passageways (26). All of the passageways (26) provide a substantially equal dwell time to gas passing therethrough.

L'invention concerne un échangeur thermique à flux gazeux comprenant un ensemble de zones thermiquement conductrices, parallèles, espacées possédant entre elles une pile de pochettes contenant chacune des cloisons parallèles (24) définissant un plateau de passages (26) lequel guide le chemin du flux gazeux à travers la pochette située entre les ouvertures d'entrée et de sortie (22, 23). Les ouvertures étant disposées en quatre lignes parallèles sur les côtés de la pile, deux desdites lignes contenant respectivement les ouvertures d'entrée et de sortie (22, 23) associées aux chemins du flux gazeux des pochettes alternatives. Les deux lignes restantes contiennent respectivement les ouvertures d'entrée et de sortie associées aux pochettes restantes. Chaque pochette contient un cadre amovible (21) formé à partir des ouvertures situées au niveau des extrémités du chemin du flux gazeux le traversant et supporte dans ledit cadre les cloisons parallèles (24) qui divisent le chemin du flux gazeux en plateau de passages (26). Tous les passages (26) fournissent un temps de passage du gaz sensiblement égal.

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