HEAT EXCHANGER WITH IMPROVED PASSAGE CONFIGURATION, RELATED HEAT EXCHANGE METHODS Russian patent published in 2021 - IPC F28D9/00 

FIELD: heat engineering.

SUBSTANCE: invention relates to heat engineering and can be used in plate heat exchangers. In a heat exchanger (E1) comprising a plurality of plates (2) parallel to the longitudinal direction (z) and together forming a first row of passages (10) for the flow of at least one refrigerant (F1) intended to exchange heat with at least one calorific fluid medium (C), and at least one passage (10) of the first row formed between two adjacent plates (2) has a refrigerant inlet (31) configured to inlet refrigerant (F1) into a section (100) of said passage (10), and a refrigerant outlet (41) configured to discharge refrigerant (F1) from the area (100), said at least one passage (10) of the first row further comprises at least one other inlet (32) for coolant configured to inlet another coolant (F2) into another section (200) of said passage (10), and at least one other outlet (42) for refrigerant, configured to discharge another refrigerant (F2) from another section (200), said other inlets and outlets (32, 42) located so that said at least one passage (10) is divided, in the longitudinal direction (z), at least the specified area (100) and the specified other area (200).

EFFECT: reducing the length in the longitudinal direction of inactive heat exchange zones by dividing in the longitudinal direction at least one pass of the heat exchanger and organizing the circulation of different refrigerants in it.

12 cl, 6 dwg