Counterflow heat exchanger with passage constrictions - in which inlet and outlet cross=sections of neighbouring, passages run transversely to main direction of flow

摘要

A plate heat exchanger incorporates a number of counter-flow passages, each of which is formed by two joined neighbouring parallel plates, parallel to the main flow direction and joined at the edges. The inlet and outlet cross-sections of neighbouring passages run transversely to the main direction of flow and are alternately constricted about 50%; that the inlet and outlet cross-sections formed by the package of plates on the opposite side are respectively each sepd. by at least one inlet and outlet passage, which run transverse to the main direction of flow defined by the passage walls.