Patent ID: 6510894
Filing Date: 2003-01-28
Classification: B01J,F28D,F28F

Abstract:
A heat exchanger or fluid mixing means comprising a bonded stack of plates, the bonded stack of plates comprising at least one group of perforated plates, at least two adjacent plates of each group of perforated plates having perforations aligned in rows and continuous ribs between adjacent rows, the at least two adjacent plates being aligned so that the rows of perforations in one plate overlap in the direction along which the rows extend with the rows of perforations of an adjacent plate, and the ribs of adjacent plates lie in correspondence with each other to provide discrete fluid channels that correspond to each row of perforations, the channels together forming one or more fluid passageways across the at least two plates and each passageway in the group of perforated plates being separated from each passageway in any adjacent group of perforated plates by an intervening plate that has holes extending through its thickness, the holes being of size, number and position to control mixing of fluids flowing in a passageway on one side of the intervening plate with fluids flowing in a passageway on an opposite side of the intervening plate.