HEAT EXCHANGER Russian patent published in 2015 - IPC F28D7/00 

FIELD: heating.

SUBSTANCE: heat exchanger contains an external pipe with heating medium supply and discharge branch pipes and the internal pipe inserted into it with heated medium supply and discharge branch pipes, in interpipe space the inserts are installed which are arranged stepwise along the length of the external pipe with formation of passages in interpipe space and are inserted into the internal pipe with overlapping of at least half of its cross section. Inserts of interpipe space are implemented in the form of heat pipes.

EFFECT: increase of overall performance of the heat exchanger with reduction of its material capacity and simplification of its design.

2 cl, 1 dwg