UNIVERSAL AIR HEATING FURNACE Russian patent published in 2019 - IPC F24B7/00 F24C1/04 

FIELD: furnaces.

SUBSTANCE: invention relates to heating devices, in particular, to metal flame furnaces on solid, liquid or gaseous fuel intended for air heating of residential and non-residential premises. Universal air heating furnace consists of a firebox with a fuel door, a smoke stack, at the same time the flue duct is connected to the firebox by means of a branch pipe, and air intake slots. Fire box is made of a cylindrical metal mold, to the cover of which there is a welded short smoke metal branch pipe of smaller diameter, and the upper part of the smoke short branch pipe is connected to the metal smoke downward bent branch pipe parallel to the axis and at some distance from the external surface of the firebox. First smoke bent pipe also serves as a chimney for connection to it of two small cylindrical metal heaters connected to each other by means of the second vertically arranged smoke metal branch pipe, which side walls are perforated with holes for supply of mainly additional air from the heated room. Upper small cylindrical heater is hollow and is equipped in its upper part with air branch for air inlet from heated room, which hole is made with additional gate, divided in middle part by means of horizontal rotation axis, attached to walls of inlet hole of branch pipe. Lower small cylindrical heater is filled with liquid or gaseous fuel, the cover of which has an inlet with a regulating flat gate for safe operation and supply of small controlled air into the small cylindrical heater. Both small-sized heaters are located at the same level as the firebox.

EFFECT: higher heat release, simpler mounting.

6 cl, 1 dwg