The invention discloses a
gas burner capable of adjusting gas to be self-recycling. The
gas burner capable of adjusting the gas to be self-recycling comprises a center fuel
pipe, a primary rotational-flow air duct, a secondary direct-flow air duct and an ejector, wherein the center fuel
pipe, the primary rotational-flow air duct, the secondary direct-flow air duct and the ejector are coaxial from inside to outside and sequentially embedded in a sleeved mode. A fuel
nozzle is formed in the outlet segment of the center fuel
pipe, an air
cyclone and a pre-
mixing chamber are arranged inside the primary rotational-flow air duct, the primary rotational-flow air duct and the pre-
mixing chamber are communicated with the fuel
nozzle, both an outlet of the pre-
mixing chamber and the outlet end of the secondary direct flow air duct are arranged at the
throat position of the ejector, a main
flame burning area is formed at the
throat position of the ejector, an electronic igniter is further arranged inside the primary rotational-flow air duct, one end of the electronic igniter penetrates through the air
cyclone, the ignition
electrode of the electronic igniter is arranged inside the pre-mixing chamber, the end surfaces, being connected with the head of the burner, of the ejector are of a sawtooth disk structure and meshed with each other, and linkage mechanisms are arranged at the positions of the sawtooth disk structures and fixed on the outer pipe wall of the secondary direct-flow air duct. The
gas burner capable of adjusting the gas to be self-recycling has the advantages of being easy to manufacture, and capable of achieving the objective that the adapting range of fuel is wide, burning efficiency is high, burning is stable, and
pollution is low.