Inward-gathering atmospheric infrared burner

Abstract

The invention discloses an inward-gathering atmospheric infrared burner, mainly comprising an atmospheric burner and an infrared burner which are concentrically arranged with one above the other. Thelower face of the infrared burner is provided with a flame gathering cavity facing flame outlets of the atmospheric burner; the part, above the flame gathering cavity, of the infrared burner and the flame gathering cavity jointly form a guard cavity of the atmospheric burner. The atmospheric burner and the infrared burner are stacked and sleeved herein to form an oblique inward-gathering guard structure with short inside and tall outside, so that flames generated by the inward-gathering atmospheric infrared burner are gathered within an inner ring of the infrared burner; heat generated by combustion is guarded by the infrared burner from irradiating out, and burning efficiency is effectively improved; heat efficiency can be improved at the premise of attaining big fire; the habit of Chinese people to perform stir-frying on big fire is satisfied.

Description

technical field [0001] The invention relates to the field of civil gas stove burners, in particular to a cohesive atmospheric infrared burner. Background technique [0002] The natural injection atmospheric burner relies on the negative pressure generated by the high-speed fluid ejected from the nozzle to bring in and mix the air around the nozzle. Since the gas pressure of the stove is constant and the flow rate is constant, the amount of air brought in has a range value, which can generally be The amount of air required to achieve full combustion is between 0.3-0.65, and the amount of air required for combustion cannot be replenished in time. As a result, the air must be supplemented by the diffusion of the flame for the second time, and the combustion is completed by the second supplementary air diffused. More CO will be produced, and the exhaust gas emissions will be large. In addition, it is necessary to rely on the diffusion of the flame to obtain air supplementation,...

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Problems solved by technology

However, the range of improving thermal efficiency is also very limited, and at the same time, it is greatly affected by flue gas factors.

[0007] In addition, the direct heat conduction between the flame and the bottom of the pot is still the same as that of ordinary burners, and has not been enhanced, and has not made a big contribution to the improvement of thermal efficiency. The main reason is that the actual combustion temperature of the flame has not changed. The temperature difference between the flame combustion temperature and the bottom of the pot has not been effectively increased, resulting in no significant increase in the direct conduction heat efficiency of the flame

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