Heat exchanger and/or fluid mixing means

Details Heat exchanger and/or fluid mixing means Heat exchanger and/or fluid mixing means

F - Mech Eng,Light,Heat,Weapons

28

D

F28D 9/00 (2006.01) B01J 19/00 (2006.01) B01J 19/24 (2006.01) F28F 3/02 (2006.01) F28F 3/08 (2006.01)

Patent

CA 2292566

The invention provides an improved heat exchanger and/or fluid mixing means which comprises a bonded stack of plates, the stack comprising at least one group of main perforated plates (10, P, R), wherein at least two adjacent plates (P, R) of the group of main perforated plates have their perforations (11) aligned in rows with continuous ribs (13) between adjacent rows, and the adjacent plates (P, R) are aligned whereby the rows of perforations (11) in one plate (P) overlap in the direction of the rows with the rows of perforations (11) of an adjacent plate (R) and the ribs (13) of adjacent plates lie in correspondence with each other to provide discrete fluid channels (30) extending across the plates, a channel (30) corresponding to each row of perforations (11), the channels together forming one or more fluid passageways (61, 67) across the plates and the passageway(s) (61) in the group of main perforated plates being separated from passageway(s) (67) in any adjacent group of perforated plates by an intervening plate (TS).

Cette invention concerne un échangeur de chaleur perfectionné et/ou un dispositif de mélange de fluide qui comportent un empilement de plaques liées entre elles. Cet empilement comporte au moins un groupe de plaques perforées principales (10, P, R) dans lequel au moins deux plaques adjacentes (P, R) ont leurs perforations (11) alignées horizontalement avec des séries de nervures (13) situées entre des rangées adjacentes de perforations, les plaques adjacentes (P, R) étant alignées. Les rangées de perforations (11) d'une plaque (P) chevauchent, dans le sens des rangées, les rangées de perforations (11) d'une plaque adjacente (R). Les nervures (13) de plaques adjacentes s'empilent les unes sur les autres dans le but de créer des canaux séparés (30) destinés à recevoir du fluide et s'étendant entre les plaques. Un canal (30) correspond à chaque rangée de perforations (11), ces canaux formant ensemble une ou plusieurs trajectoires d'écoulement (61, 67) du fluide entre les plaques. Les trajectoires d'écoulement (61) du groupe de plaques perforées principales sont séparées des trajectoires d'écoulement (67) de tout groupe adjacent de plaques perforées par une plaque intermédiaire (TS).

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