HEAT EXCHANGER Russian patent published in 2010 - IPC F28D7/00 

FIELD: heating systems.

SUBSTANCE: invention refers to heat exchange equipment and is intended for being used as heat exchanger of nuclear power plant operating in variable load mode. In heat exchanger containing the housing with bank of heat exchange tubes, which is located inside it, exchange tubes are fixed in tube sheets, and bank of parallel located corrugated plates in tubular volume, two opposite walls of the housing are corrugated and parallel to bank of plates, and two other ones are flat; each tube is also bent as per plate profile, located between them and equipped outside in straight sections with screw-shaped ribs with changing swirl angle, and inside - with band with swirl direction opposite relative to ribs; at that, in tubular volume there arranged are ejectors which are made in the form of rods fixed in additional tube sheets and located equally spaced.

EFFECT: increasing heat exchange intensity owing to uniformity of temperature field in cross section of heat exchange tube bank, improving operating reliability owing to decrease of relative deformation of tubes at thermal linear expansions.

3 dwg