DIRECT-FLOW HEAT EXCHANGE DEVICE Russian patent published in 2015 - IPC F28D7/10 F28D7/16 

FIELD: heating.

SUBSTANCE: invention refers to heating engineering and can be applied in devices for interaction of two heat carriers without direct carrier contact, particularly in steam generators. Direct-flow heat exchange device includes case and concentric tube channels formed by a cylinder made out of straight heat exchange elements of pipe-in-pipe type, where a gap between outer surface and case of obtained cylinder forms heating medium channel connected in sequence with inner cavity of the cylinder and with inner channel of pipe-in-pipe elements comprising the cylinder. Work medium flows in the annular channel of pipe-in-pipe element.

EFFECT: enhanced spatial power density of heat exchanger, simplified design.

3 dwg