Patent ID: 6116332
Filing Date: 2000-09-12
Classification: F28F,Y10S

Abstract:
A plate heat exchanger comprisinga plate package (2) of heat transfer plates (3), between which passages are formed for two heat exchange fluids, the heat transfer plates (3) being provided with ports forming channels through the plate package (2) for at least one of the heat exchange fluids,two frame plates (4, 5) between which said plate package (2) is arranged, at least one (4) of the frame plates being provided with at least one through hole (8) communicating with one of said channels,at least one connection pipe (7) firmly connected with said one frame plate (4) around its through hole (8),at least one tubular lining (9), which is arranged inside said connection pipe (7) and within the through hole (8) of said one frame plate (4) in such a way that it has a radial movability relative to the frame plate (4), the lining (9) further being permanently connected with an outer heat transfer plate (10) of said plate package (2), situated closest to the frame plate (4), around one of the ports (12) of the outer heat transfer plate (10), anda support arrangement for counteracting bending of said outer heat transfer plate (10) in a portion thereof around its said port (12) and permitting said movability of the lining (9), said arrangement comprising a ring (14) which extends around the lining (9) and is arranged to abut by its one side axially against said portion of the outer heat transfer plate (10) and by its other side against a support surface provided therefor, which is fixed in relation to the frame plate (4).