COUNTERFLOW RECUPERATOR FOR HIGH-EFFICIENCY HEAT EXCHANGE Russian patent published in 2019 - IPC F28D7/10 F28F9/22 

FIELD: heat exchange.

SUBSTANCE: invention relates to heat engineering and can be used in recuperative heat exchangers. In the counterflow recuperator for high-efficiency heat exchange, consisting of inner(s) and external pipes of arbitrary cross-section, located one(s) in the other, as well as supply and discharge headers to them for hot and cold heat carriers, pipes consist of heat conducting pipe sections and heat-insulating spacers located between them, preventing heat propagation along pipes, wherein its outer pipe is either additionally heat-insulated from the outside, or completely made of heat-insulating material.

EFFECT: technical result is higher efficiency of heat transfer.

1 cl, 3 dwg