An updraft burner

Abstract

The invention discloses a top air inlet type combustor. The top air inlet type combustor comprises a base and a support. The support is fixedly connected to the base. A first air inlet nozzle, a second air inlet nozzle and a central air inlet nozzle are arranged on the base. A first jet pipe, a second jet pipe and a central jet pipe are arranged on the support. An outer annular groove, a middle annular groove and an inner annular groove are sequentially formed in the support from the outer edge to the center. The outer annular groove communicates with the first air inlet nozzle through the first jet pipe and communicates with the second air inlet nozzle through the second jet pipe. A first distribution face matched with the first jet pipe and a second distribution face matched with the second jet pipe are arranged in the outer annular groove. The inner annular groove communicates with the central air inlet nozzle through the central jet pipe. The top air inlet type combustor has the characteristics that air and fuel gas are sufficiently mixed, the combustion effect is good, and the combustion efficiency is high; and the waterproof effect is good, and thus, the combustion effect ofthe combustor is not affected.

Description

technical field [0001] The invention relates to the field of cookers, in particular to an upward air intake burner. Background technique [0002] At present, most of the existing household gas burners are atmospheric burners, also known as partial premixed burners. Its working principle is: under a certain pressure, the gas flows out from the nozzle at a certain flow rate and enters the ejector pipe, relying on the ejection effect of the energy of the gas itself, to attract a certain amount of surrounding air, which is called "primary air". The primary air and gas are mixed in the injector tube and the mixing chamber of the burner, and then flow out through the fire hole for combustion. During the combustion process, air is drawn from around the flame to support the combustion. This part of the air is called "secondary air". [0003] At present, when the outer annular groove of the atmospheric upward air intake burner is inhaled, it can only flow into the outer annular gro...

AI Technical Summary

Problems solved by technology

[0003] At present, when the outer annular groove of the atmospheric upward air intake burner is inhaled, it can only flow into the outer annular groove from one direction (clockwise or counterclockwise) to mix with air for combustion, which leads to a slower mixing speed of gas and air, and Insufficient mixing. In addition, the existing burner ejection tube is short, so that the air and gas cannot be fully mixed, thereby affecting the performance of the entire set of burners, and losing the thermal efficiency of the outer ring. At this time, due to the poor negative pressure effect, the air enters less, the mixing effect of air and gas is poor, and the combustion is not sufficient. In addition, when the upper intake air burner is burning, the water on the stove is easy to flow into the burner, which affects the combustion effect.

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