Burner and gas stove with same

Abstract

The invention discloses a burner and a gas stove with the same. The burner comprises a stove head, a nozzle holder, a gas distribution plate and an outer ring flame cover, wherein nozzles are disposed on the nozzle holder, and the nozzle holder is connected with the stove head; the gas distribution plate is disposed on the stove head; a first flame outlet part extending along the periphery of the outer ring flame cover is disposed on the outer ring flame cover, first light flame holes are formed in the outer peripheral face of the first flame outlet part, a second flame outlet part surrounding the first flame outlet part is disposed on the outer periphery of the outer ring flame cover, and first dense flame holes facing the first light flame holes are formed in the second flame outlet part. By the first light flame holes and the first dense flame holes facing the first light flame holes, opposed combustion of light-combustion flames and dense-combustion flames can be achieved, the light-combustion flames can be combusted steadily, flame floating is prevented, flame combustion time is short, flame combustion temperature is low, and NOx emission is lowered evidently.

Description

technical field [0001] The present invention relates to the technical field of gas equipment, and more specifically, to a burner and a gas stove with the same. Background technique [0002] Energy saving and environmental protection are the development direction of stove burners. Most of the low "NOX" burners are realized on infrared gas stoves, and NOx will not be generated in a large amount in the flame surface of infrared burners. Since the infrared fully premixed burner burns completely instantaneously, the flame is very short and the surface area of ​​the flame is small, so as long as the airflow of each fire hole is evenly distributed, there will be no local high temperature in the area downstream of the flame, so that the temperature distribution of the entire combustion chamber is even and effective. It is beneficial to reduce the formation of thermal NOx. The low NOX emission technology of ordinary atmospheric premixed burners has not been studied by many manufactu...

AI Technical Summary

Problems solved by technology

[0004] In the related art, the material of the fire cover of the fully premixed burner is a ceramic plate or a metal fiber net, and countless tiny fire holes are arranged on the ceramic plate or the metal fiber net, and the fire holes are densely arranged. When the cover is closed, it is very easy to block the fire hole, causing the harmful gas content in the flue gas to exceed the standard, or the yellow flame phenomenon occurs

However, some premixed single-injection tube rich-lean burners usually have insufficient primary air coefficient and high flame temperature, which cannot form light combustion, resulting in high NOx content.

In addition, there are also multi-ring fire low NOx burners. The gas chamber is separated by the gas distribution plate, and the rich combustion and light combustion correspond to different chambers respectively. There are also many matching surfaces of the cover, which is prone to air leakage

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