HEATING BOILER Russian patent published in 2000 - IPC

FIELD: heating and hot water supply systems. SUBSTANCE: proposed heating boiler has furnace 1 enclosed in water jacket 3 made up of tubes with fins connected with rear header 6 and front header 7 installed in end faces of furnace and provided with partitions. Water jacket 3 is connected with additional water jacket formed by boiler shell arranged concentrically relative to furnace and main water jacket. Additional water jacket accommodates fire tubes 11 laid longitudinally. Semiring partitions 12 are arranged in tube space of water jacket. Semicylindrical gas guide partition is installed in outlet gas duct 15. EFFECT: improved reliability and efficiency of heat removal. 3 dwg