Evaporation heat exchanger has evaporation structure designed as folded fin with parallel almost S-shaped folds forming internal channels and capillary gaps for liquid

摘要

An evaporation heat exchanger has a evaporation structure flowed over by ambient air to which an evaporating liquid (condensate) can be supplied and which communicates with a medium to be cooled (coolant). The evaporation structure is designed as a folded fin (1). The folded fin has a number of parallel almost S-shaped folds (3) which form internal channels (5,6) and capillary gaps (10,11) for the liquid. The folded fins are stacked into a packet of fins (21) and are connected with tubes (23) for the medium to be cooled. The tubes are designed as round tubes and are fastened by mechanical expansion in girders of the folded ribs.