Plate heat exchanger
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United States of America Patent
Stats
-
Jul 18, 1989
Grant Date -
N/A
app pub date -
Apr 21, 1988
filing date -
Jan 13, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates to a plate heat exchanger comprising heat exchange plates clamped between a frame plate and a pressure plate, the frame plate and the pressure plate having ports with linings for intake and outflow of media to be heat exchanged and the heat exchange plates having ports in alignment with corresponding ports in the frame plate and the pressure plate round which ports of the heat exchange plates ring gasket grooves extend. According to the invention the one of the frame plate or the pressure plate (1) facing the rear side of the ring gasket groove (4) of the heat exchange plates is provided with linings (2; 14; 22; 23) which do not require machining of the plate (1) at the area of the ports and that the sealing between the lining (2; 14; 22; 23) and a heat exchange plate (3) is brought about by means of a ring gasket (10; 21) engaging the ring gasket groove of the heat exchange plate (3) positioned closest to the frame plate or the pressure plate (1).
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