HOT-WATER BOILER Russian patent published in 1999 - IPC

FIELD: heating of dwellings. SUBSTANCE: boiler includes furnace with the following water-cooled sections located inside it: upper section raised at angle of 3-5 deg relative to level, rear section and lateral sections between which upper group of heat exchange elements is located at flue gas outlet and lower group of heat exchanger elements, smoke stack provided with water jacket with water discharge branch pipe and cold water supply pipe. Circulation of water being heated is enhanced due to raising upper water-cooled section at angle of 3-5 deg relative to level and mounting of upper group of heat exchange elements and cold water supply pipe at angle of 8-10 deg relative to opposite walls of lateral sections; connection of walls of water-cooled sections by means of strainers excludes loss of tightness of boiler because of thermal expansion. EFFECT: enhanced efficiency and reliability. 2 cl, 3 dwg