METHOD OF PROVIDING LONG BURNING OF FUEL AND A SOLID-FUEL THREE-CHAMBER BOILER FOR LONG BURNING Russian patent published in 2018 - IPC F24B1/02 F24B13/00 F23B10/00 

FIELD: heating.

SUBSTANCE: invention relates to heating devices, in particular to long-burning furnaces for premise heating, including those in areas with a harsh climate and using low-quality fuels. Method of providing long burning of fuel in a three-chamber boiler is that the solid fuel is laid through the furnace common door in two combustion chambers separated from each other by a separation screen, is burnt until getting burning coals, further a solid fuel is laid in two combustion chambers and the pyrolysis is started in the first combustion chamber and burning with an open flame in the second combustion chamber, in the mixing chamber, pyrolysis gases and heated secondary air are mixed with the onset of pyrolysis combustion, the formed gas is passed through the heat exchange unit and sent to the chimney, further solid fuel is burned to produce burning coals. Then, solid fuel is laid into two combustion chambers and the described processes are repeated for the second and first combustion chambers respectively, starting from providing pyrolysis and burning with an open flame.

EFFECT: increase the efficiency of fuel combustion by ensuring the stability of burning pyrolysis gases.

2 cl, 2 dwg