VORTEX HEAT EXCHANGE ELEMENT Russian patent published in 2012 - IPC F28D7/10 

FIELD: power industry.

SUBSTANCE: vortex heat exchange element containing cylindrical heat exchange tubes coaxially located one in the other, in each of which there installed are at least two vortex tubes; at that, one vortex tube is installed at the section inlet, and the other one is installed at the distance between them, which is determined by complete damping of rotational movement of vortex flow at complete heat load, has the packs of ribs on cylindrical pipe of large diameter along external surface in each section determined with complete damping of rotational movement of vortex flow; at that, distance between ribs in each pack decreases. At that, inlet of heat carriers to each of sections of large-diameter pipe and internal pipe is made either on one and the same side, or on opposite sides in relation to flow movement, thus ensuring both counter-flow and direct-flow scheme of heat carrier movement in the element; internal pipe with cylindrical surfaces is made from bimetal; at that, material of internal pipe surface on the side of hot heat carrier has heat conductivity coefficient which is by 2.0-2.5 times more than material of surface of internal pipe on the side of cold heat carrier.

EFFECT: heat exchange intensification is achieved by uniform distribution of heat flow.

3 dwg