HEAT EXCHANGER Russian patent published in 2015 - IPC F28D7/10 

FIELD: heating.

SUBSTANCE: heat exchanger contains a casing with external and internal walls installed coaxially with ring clearance and making cavity for working medium, supply and drainage headers with branch pipes, heat exchange elements made in form of two-layer cylindrical shells, connected with each other and casing using the pillars, installed at end of the heat exchange elements, wherein in the pillars the channels are made for the working medium supply and drainage, under option of manufacturing on the external surface of the heat exchange elements the fins are made.

EFFECT: increased heat output.

2 cl, 3 dwg