| 摘要 |
In a plate heat exchanger, particularly with a large number of plates in a pass, one of the problems is the port losses arising from uneven distribution between the flow spaces in the pass. In accordance with the present invention in order to divert flow away from the inlet and outlet end of a U arrangement pass, there is provided in the inlet duct a distribution (9) in the form of a tube (12) having external fins (15) an external annulus (17) and a flow straightening extension (18) mounted on locating rods (13a). In the discharge duct there is provided a collector (11) also in the form of tubes having an inlet aperture (23) and an external annulus (22).
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