RECUPERATIVE BURNER Russian patent published in 2020 - IPC F23L15/04 F23D14/66 

FIELD: power engineering.

SUBSTANCE: invention relates to the field of power engineering. Recuperative burner comprises housing with heat exchanger, which includes first channel intended for combustion air, and second channel intended for exhaust gases, and comprises at least one first tube for outlet of off-gas. Burner comprises air inlet channel leading to first annular chamber, axis of symmetry of which coincides with axis of symmetry of at least one first tube for outlet of exhaust gases, wherein first annular chamber is also connected to Venturi tube located inside at least one first tube for exhaust gases outlet. First annular chamber is connected to the second annular chamber, axis of symmetry of which coincides with axis of symmetry of heat exchanger. Second annular chamber communicates with the first passage contacting the heat exchanger. First passage is located between the heat exchanger and the first tube coaxial to the heat exchanger and located inside the heat exchanger.

EFFECT: invention allows to improve the quality of fuel combustion.

10 cl, 5 dwg