A Great Small Victory

New Scheme of Control and Air Supply in a Low-Power Hot Water Boiler

“…The disadvantages of the design of solid fuel boilers for long-burning include inefficient fuel combustion and a limited volume of the furnace, which leads to the need for frequent fuel loading. In addition, there is a relatively large percentage of unburned fuel, especially with high moisture content and high ash content, which increases the cost of heating [13]- [15].…”

“…An air collector (12) is installed above a grate (8) for supplying air into the layer of coal loaded on the blind grate. The collector (12) consists of pipes (13) with holes (14) along them, through the inlet pipe (3) and outlet (4) water jacket (2) of the boiler connected to a water circulation system, such as a heating system (not shown). Through the loading door (6,) a portion of coal is loaded into body (1) of the boiler on a deaf grate (8) and ignited.…”