Patent ID: 6059025
Filing Date: 2000-05-09
Classification: F28D,F28F

Abstract:
A plate-type heat exchanger for heat exchange between first and second fluid streams, said heat exchanger comprising:a stack of generally rectangular heat exchanger plates comprised of a first set of said heat exchanger plates and a second set of said heat exchanger plates interleaved between said first set so that said stack is comprised of alternating heat exchanger plates from said first and second sets, each of said plates having a first fluid surface and an opposite second fluid surface and positioned in spaced, generally parallel relationship to one another so that the first fluid surface of plates in said first set faces the first fluid surface of plates in said second set and the second fluid surface of plates in said first set faces the second fluid surface of plates in said second set, each of said plates further having a pair of generally parallel first edges and a pair of generally parallel second edges, said second edges being generally perpendicular to said first edges, at least one of said first and second edges having first and second edge sections, each of said first and second edges and each of said first and second edge sections terminating in either a first edge configuration or a second edge configuration with said first edge section terminating in one of said first and second edge configurations and said second edge section terminating in the other of said first and second edge configurations, and further with each of said first and second edges and said first and second edge sections of said first set of plates terminating in one of said first and second edge configurations and each of the corresponding first and second edges and first and second edge sections of said second set of plates terminating in the other of said first and second edge configurations, said stack being mounted within a frame comprising first and second end frame members, a plurality of corner posts extending between said first and second end frame members and a mid-post extending between said first and second end frame members and positioned between two adjacent corner posts;a first set of fluid flow directing members positioned between the first fluid surface of each heat exchanger plate in said first set and the first fluid surface of an adjacent heat exchanger plate in said second set; anda second set of fluid flow directing members positioned between the second fluid surface of each heat exchanger plate in said first set and the second fluid surface of an adjacent heat exchanger plate in said second set.