MARINE BOILER Russian patent published in 2000 - IPC

FIELD: heat-power engineering. SUBSTANCE: boiler has steam-producing tubes positioned in furnace wall and in wall of body and communicating with upper and lower circular reservoirs to establish communication between furnace and circular internal space. At least one of two walls (furnace wall and wall of body) and preferably both walls consist of steam-producing tubes coupled by intermediate flanges. Its makes boiler more stable. Its maximum length is not limited. It may be of any length or sizes capable of producing desirable effect. Boiler has compact design and small mass. It takes small space and is simple for mounting and servicing. EFFECT: higher reliability. 6 cl, 4 dwg