Gas burner

Abstract

The invention relates to a gas burner which comprises a gas mixing chamber and an outer ring fire cover. An annular cavity which is open upwards is arranged at the top of the gas mixing chamber. Gas outlets are formed in the annular cavity. The outer ring fire cover is arranged on the annular cavity in a covering manner and is provided with a gas mixing cavity. Fire outlet holes communicating withthe gas mixing cavity are formed in the upper edge of the outer ring wall. An annular interlayer is arranged between the annular cavity and the gas mixing cavity in the circumferential direction. Theinterlayer can block gas flowing out of the gas outlets, and gas through openings communicating with the annular cavity and the gas mixing cavity are formed in the interlayer. In the gas burner, theinterlayer can block the gas flowing out of the gas outlets and therefore the gas flowing out of the gas outlets can be prevented from flowing straight to the fire cover; when the gas impacts on the lower surface of the interlayer, the gas can be slowly diffused along the lower surface through the Coanda effect and finally enters the gas mixing cavity; and gas and air can be mixed more sufficiently, then the concentration and flow of gas at the fire outlet holes can be more uniform, and finally the burner obtains good burning performance and burning efficiency.

Description

technical field [0001] The invention relates to the field of gas stoves, in particular to a gas burner. Background technique [0002] Existing gas burners generally include a base, a gas mixing chamber, an outer ring fire cover and an inner ring fire cover, wherein the outer ring fire cover and the inner ring fire cover are respectively covered on the gas mixing chamber, and the gas passes through a copper gas pipe, a pilot burner, and a fire cover. After injecting the nozzle and the base, it enters the gas mixing chamber for mixing, and finally the mixed gas is ejected from the fire hole of the fire cover for combustion. [0003] Gas combustion generally includes two steps: the first step is to suck the primary air into the gas mixing chamber through injection and mix it, and the gas-air mixture is sprayed out from the fire hole of the fire cover, and ignited to form intermediate transition products, releasing a small amount of heat; In the second step, the intermediate tr...

AI Technical Summary

Problems solved by technology

It can be seen from the above that the sufficient mixing of gas and air in the first step is very important for gas combustion. The existing gas burner has the problem of insufficient mixing of gas and air, which affects the combustion of gas, and then affects the performance of the burner. Combustion performance

In addition, the gas mixing chamber of the existing gas burner has a plurality of gas outlets, and the gas flows out of the gas outlets and rushes directly to the fire cover, resulting in uneven gas flow in each fire hole, which in turn affects the performance of the burner. Combustion performance and combustion efficiency

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