FUEL OIL OPERATING HEATING DEVICE Russian patent published in 2016 - IPC F23D5/06 F23D11/44 F23D3/40 

FIELD: power industry.

SUBSTANCE: mobile fuel oil operating heating device contains a combustion chamber (2), that has input (3) for combustion air, wherein the combustion chamber has expanding section (20) abutting to the input (3) for combustion air, the expanding section cross-section increases with increasing of distance from input (3) for combustion air, and in it during operation the combustion air burns with fuel with flame creation; fuel supply located such, that fuel is supplied to the expanding section (20); and air directing device (6), intended for the combustion air directing from the flowing in circumferential direction flow component to the expanding section (20) such, that in the expanding section (20) the axial recirculation band (RB) is created, in it gas flows opposite to main direction (H) of flow towards the input (3) for combustion air, wherein the combustion chamber (2) is divided aerohydrodynamically to the primary zone (PZ) of combustion, and secondary zone (SZ) of combustion, the primary zone (PZ) of combustion has the expanding area (20) and recirculation band (RB), and the secondary zone (SZ) of combustion has input (23) for the secondary combustion air such, that in the secondary zone (SZ) of combustion a higher coefficient of the combustion air surplus is set then in the primary zone (PZ) of combustion.

EFFECT: invention increases operation reliability of the device, and reduces emission of harmful substances during combustion.

16 cl, 6 dwg