HEAT EXCHANGER AND HEAT EXCHANGER OPERATION METHOD Russian patent published in 2021 - IPC F28D7/02 F28F27/02 F28F9/22 

FIELD: heat engineering.

SUBSTANCE: invention relates to the field of heat engineering; it can be used in heat exchangers of cryogenic plants. In the heat exchanger containing case element (110) limiting chamber (112) and tubular bundle (104) located inside chamber (112) and designed for the transfer of the first heat-conducting medium between first inlet nozzle (132) and first outlet nozzle (134), chamber (112) is made with the possibility of the transfer the second heat-conducting medium between second inlet hole (114) and second outlet hole (116), and it has internal zone (112a) made with the provision of a free passage of the heat-conducting medium during the first and the second operation modes, and external zone (112b) made with the provision of the prevention of a free passage of the second heat-conducting medium during the first operation mode and with the provision of a free passage of the second heat-conducting medium during the second operation mode to accelerate cooling or heating.

EFFECT: optimization and/or reduction in switch periods (transition stages) between modes in cooling/heating periods.

11 cl, 1 dwg