Heat exchanger, steam refrigerant compression system and method for operating a vapour compression cycle of refrigerant.

摘要

Heat exchanger, steam refrigerant compression system and method for operating a vapour compression cycle of refrigerant. It is described a heat exchanger which includes a first tube and a second tube collector collector and a plurality of tubes of heat exchange, which extends between them.Each heat exchange tube has an inlet end which opens to a collecting tube outlet and an outlet for the other collecting tube.Each heat exchange tube has a plurality of channels extends longitudinally in parallel relationship from its inlet end to end output, each channel defining a coolant flow path profile.The inlet end of each of the plurality of tubes of heat exchange is positioned with the entry that opens to the channels disposed in spaced relationship and facing the internal surface opposite of the collecting tube, defining a relatively narrow clearance between the entry That opens up to the channels and the internal surface of the front opposite the tube collector.The recess can function as both a primary expansion device and a second device for expansion.