HEATING BOILER Russian patent published in 2018 - IPC F23B80/04 

FIELD: heat-and-power engineering.

SUBSTANCE: invention relates to heat engineering. Heating boiler comprising a housing with double walls forming a sealed heat carrier cavity, with a charging door, a chimney flue and a heat-insulating hood, contains a vertical chimney with an adapter branch fitted to it with a flap, several longitudinal cavities for the coolant located above the furnace with an air gap relative to the upper wall of the boiler, a transverse partition and a transverse cavity installed with a clearance relative to the rear wall of the boiler, the transverse partition being located behind the furnace, with a clearance relative to the rear wall of the boiler, and a vertical chimney is located on the rear inner wall of the boiler and communicates with the chimney flue, the cavity between the rear wall and the transverse cavity and the adapter branch with a flap that has manual or automatic control from the flue gas temperature controller, and the walls of the furnace are covered with screens or lined with heat-resistant material, the transverse partition is made hollow and communicates through openings with an air cavity of the ash pan and pipe ducts installed under the longitudinal cavities.

EFFECT: invention is aimed at reducing deposits on heat exchange surfaces, including hard to remove, and expanding the range of generated capacities.

7 cl, 2 dwg