HEAT EXCHANGER CONTAINING TUBES WITH SHAPED RIBS Russian patent published in 2013 - IPC F28F1/24 

FIELD: power industry.

SUBSTANCE: tubular heat exchanger includes tubes with ribs. Tubes pass in some axial direction and are equipped with heat exchange ribs. Each rib includes a heat exchanger surface that envelopes a tube and passes in some radial direction relative to the tube and has relief shape, thus forming grooves located at some distance from each other in radial direction. Grooves of a rib have dimensions, such as width and depth, which are reduced as far as they are located at some distance from the tube in radial direction, thus providing direction of fluid medium around the tube.

EFFECT: creation of a shaped rib structure for a heat exchanger tube, which allows increasing heat exchange between air and fluid medium circulating in the tube without deterioration of head loss.

9 cl, 10 dwg