TUBE BUNDLE OF STEAM CONDENSER Russian patent published in 2020 - IPC F28F1/02 

FIELD: heat power engineering.

SUBSTANCE: invention relates to heat engineering and can be used in heat exchangers. In a steam condenser tube bundle comprising heat exchange tubes installed in the tube plates with cylindrical coaxial rows, heat exchange tubes of at least each row are made with an oval or flat-oval cross-section with a radially variable in relation to the larger outer size of the cross-section of heat exchange tubes to its smaller outer size, wherein longitudinal axis of cross-section of heat exchange tubes of rows of peripheral zone is directed radially, and longitudinal axis of cross-section of heat exchange tubes of rows of central zone is directed perpendicular to radius of tube bundle, wherein the heat exchange tubes are installed in a helical manner with a variable in the radial direction swirling angle to generatrix of the cylindrical surface of the row with reduction of the swirling angle from the periphery of the tube bundle to its center.

EFFECT: higher efficiency of the heat exchanger.

6 cl, 5 dwg, 2 tbl