HEATING BOILER Russian patent published in 2012 - IPC F24H1/00 

FIELD: heat engineering.

SUBSTANCE: heating boiler comprises a cylindrical casing with a combustion chamber and a fuel supply pipe with circular water jackets, fitted with water inlets and water outlets, a bar screen and an ash-pit with air supply holes. Furthermore, the distance between the lower edge of the fuel supply pipe and the upper surface of the bar screen is equal to the following ratio: plus 0,05...0,2 of the fuel supply pipe diameter. An additional channel is installed above the bar screen at the distance of 0,4...0,6 from the upper surface of the bar screen, furthermore, the heat carrier guides are installed into water jacket spaces and/or fuel supply pipe spaces and/or combustion chamber spaces.

EFFECT: heat-transfer efficiency increase.

5 cl, 3 dwg