| 摘要 |
PURPOSE: A solid fuel combustion boiler for improving thermal efficiency is provided to maximize thermal efficiency by discharging combustion gas after the outer surface of an upper water tank is heated. CONSTITUTION: A solid fuel combustion boiler for improving thermal efficiency comprises an outline flow passage(31) and three horizontal through-ports(22). The outline flow passage is formed between an upper water tank and an outer case(30), and is enclosed by the outer case leaving a certain interval. The three horizontal through-ports are formed on the top of the upper water tank, and penetrated from the inner surface to the outer surface of the upper water tank. |
