ECHANGEUR DE CHALEUR A AILETTES

LA PRESENTE INVENTION A POUR OBJET UN ECHANGEUR DE CHALEUR A AILETTES, COMPORTANT PLUSIEURS GROUPES DE TUBES DISPOSES PARALLELEMENT ET EN REGISTRE OU EN QUINCONCE ET DES TOLES FORMANT AILETTES FIXEES SUR LESDITS TUBES ET S'ETENDANT PERPENDICULAIREMENT A CEUX-CI.CET ECHANGEUR EST CARACTERISE EN CE QU'IL COMPORTE DES ELEMENTS GENERATEURS DE TURBULENCE 4, 5, 6, 7, 8, 9 OU PAIRES D'ELEMENTS GENERATEURS DE TURBULENCE, FORMES PAR ESTAMPAGE ET REPLIAGE A 90 A PARTIR DE LA SURFACE DE BASE DE LA TOLE 2 INTERESSEE, LESDITS ELEMENTS GENERATEURS DE TURBULENCE ETANT DISPOSES ALTERNATIVEMENT LE LONG DE TANGENTES AUXDITS TUBES, QUI SONT ORIENTEES DANS LA DIRECTION DE L'ECOULEMENT DU FLUIDE INTERESSE ETOU SUR DES LIGNES MEDIANES SITUEES ENTRE LES TUBES 1.L'INVENTION S'APPLIQUE A DE TELS ECHANGEURS. A heat exchanger having a plurality of parallel pipes arranged in lines and strips of fin plates fixed to the pipes perpendicularly to the lengths thereof. Turbulence-forming structures are cut out of the fin plates and are bent up at 90 DEG with respect to the planes of the plates, such structures functioning as fin plate spacers and as baffles to direct a fluid medium of inferior heat transfer coefficient which flows in a direction parallel to the planes of the finned plates and perpendicularly to the pipes. The pipes are adapted to conduct a fluid medium of superior heat transfer coefficient. The turbulence-forming structures are disposed in lines on each side of the lines of pipes and in rows which are substantially tangential to the opposite sides of the pipes. The heat exchanger may have a plurality of lines of pipes spaced equally transversely from each other and transvetsely of the direction of flow of the fluid medium of inferior heat transfer coefficient. Further turbulence-forming structures may be disposed along the center line between the successive lines of pipes.