HEAT EXCHANGER WITH COAXIAL ARRANGEMENT OF HEAT EXCHANGE SURFACE Russian patent published in 2022 - IPC F28D7/10 

FIELD: heat engineering.

SUBSTANCE: invention relates to the field of heat engineering; it can be used to create efficient small-sized heat exchangers. In a heat exchanger containing a cylindrical case with bellows for inlets and outlets of air media, a partition for separating air flows of the first and the second media, the partition is made with triangular-shaped holes for the passage of air media along an inner circular part of an end arc-shaped separating flange of a triangular shape, and a heat exchange surface is formed from a bundle of rectilinear thin-walled pipes of various diameters assembled in a coaxial type package limited by end arc-shaped separating flanges of a triangular shape with blades installed in grooves, for the passage and separation of the first and the second media through a space located inside pipes.

EFFECT: intensification of heat exchange, reduction in a dead zone (non-working zone) at the beginning and end of a heat exchanger with the possibility of creating a given power by scaling without loss of efficiency, reduction in aerodynamic drag.

1 cl, 2 dwg