Outer burner cap for fuel gas type burner

Abstract

The invention discloses an outer burner cap for a fuel gas type burner. The outer burner cap comprises an outer burner cap body with inner holes, wherein the lower side of the outer burner cap body is provided with a gas mixing chamber; the inner wall of the outer burner cap body is provided with a plurality of laminated steps in a gradually reduced arrangement from outside to inside; the laminated steps are used for partitioning the inner wall of the outer burner cap body into a plurality of side walls; an annular groove is formed in each side wall; the lower side of the outer burner cap body is provided with a plurality of fuel gas through hole units in one-to-one correspondence to the annular grooves respectively; each fuel gas through hole unit comprises a plurality of annularly arranged fuel gas through holes; one ends of the fuel gas through holes of any fuel gas through hole unit are respectively communicated with the gas mixing chamber, and the other ends of the fuel gas through holes of any fuel gas through hole unit are respectively communicated with the inner sides of the corresponding annular grooves. The outer burner cap has the advantages that the outer burner cap is free of flame lifting and flame floating during burning, good in flame-stabilizing effect and good in heat gathering effect, and an energy-gathering flame inside a floating flame is used for central heating.

Description

technical field [0001] The invention relates to gas burner equipment, in particular to an outer fire cover for a gas burner. Background technique [0002] At present, it is generally used for gas-fired burners, including an outer fire cover and an inner fire cover. The outer fire cover includes an outer fire cover body with an inner hole. The inner fire cover is installed in the inner hole of the outer fire cover body. The cover respectively burns the gas supplied by the gas burner to increase the flame stability of the gas burner. In the prior art, the outer fire cover for gas-fired burners includes an outer fire cover body with an inner hole, the lower side of the outer fire cover body is provided with a gas mixing chamber, and a plurality of fire outlet holes are opened on the outer fire cover body. The hole communicates with the gas mixing chamber. During combustion, the gas supplied by the gas burner is mixed with the air in the gas mixing chamber, and the flame is bur...

AI Technical Summary

Problems solved by technology

In the prior art, the outer fire cover for gas-fired burners includes an outer fire cover body with an inner hole, the lower side of the outer fire cover body is provided with a gas mixing chamber, and a plurality of fire outlet holes are opened on the outer fire cover body. The hole communicates with the gas mixing chamber. When burning, the gas supplied by the gas burner is mixed with the air in the gas mixing chamber, and the flame is burned through the fire outlet hole. However, the flame directly ejected from the fire outlet hole of this structure is not stable enough, and it is easy to Part of the fire hole is out of fire or out of the flame, the stability of the flame is poor, and the flame diverges, and the heating effect is not good

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