CYCLONE HEAT EXCHANGE ELEMENT OF RECUPERATOR Russian patent published in 2015 - IPC F23L15/04 F28D7/12 

FIELD: power industry.

SUBSTANCE: cyclone heat exchange element of recuperator contains a central channel 1 formed by an internal pipe 2 and a ring channel 3 formed by internal and external pipes 2 and 5, respectively, connected to branch pipes for air supply 6 and discharge 7, the branch pipe 6 is located on the external pipe 5 and installed tangentially. On internal surface of the external pipe 5 from the side opposite to the bottom of the external pipe at the distance z = 0.4L_c, the artificial roughness 8 is made, for example, as a knurl, where L_c - is the full length of the ring channel.

EFFECT: improvement of efficiency of the heat exchange element.

2 dwg