Upward air feeding burner

Abstract

The invention relates to an upward air feeding burner. The upward air feeding burner comprises a base, and a connecting body, wherein a first ejector and second injectors which are independently separated are contained in the base, the connecting body is arranged on the base, the central position of an inner disc body is provided with a vertical first injection pipe, and an outer disc body is provided with at least two independent second injection pipes. The upward air feeding burner is characterized by further comprising a liquid storage tray, an air supplementation channel used for supplementing air is formed between the liquid storage tray and the bottom wall of the connecting body, and a flow division component is arranged in the air supplementation channel. Compared with the prior art, the upward air feeding burner has the advantages that two independent air supplementation channel bodies are formed due to the separating effect of the flow division component, so that the mutual entrainment effect of hot airflow after combustion and high temperature of the burner on the primary air supplemented to the first injector and the second injectors is effectively avoided, the air supply effect is effectively improved, and then the upward air feeding burner is not prone to yellow flame, tempering and other defects.

Description

technical field [0001] The invention relates to a burner of a gas cooker, in particular to a burner of an upper air inlet type with double channels. Background technique [0002] At present, the top-inlet gas stoves on the market such as platform gas stoves and embedded gas stoves, among which the burner of the built-in gas stove is a single-channel up-air intake structure, the gas enters through a channel, and the gas fire power is controlled by a valve, which cannot be used alone. Use inner ring gas. In order to solve the problem that a single channel does not have an independent center fire and the heat load is small, a Chinese patent with an application number of CN98120026.5 (publication number CN1212348A) discloses a simple structure, which can independently adjust the center fire and the outer ring fire. This kind of gas burner is generally equipped with a central injector and an outer ring injector, but the combustion performance of this gas burner is found to be un...

AI Technical Summary

Problems solved by technology

[0002] At present, the upward-inflow gas stoves on the market are platform-type gas stoves and embedded gas stoves. The burners of the embedded gas stoves have a single-channel upward air-intake structure. The gas enters through one channel, and the gas firepower is controlled by a valve. Use inner fire ring gas

In order to solve the problem of single channel without independent central fire and small heat load, a Chinese patent with application number CN98120026.5 (publication number CN1212348A) discloses a simple structure, which can independently adjust the central fire and the outer ring fire. The gas burner, that is, this kind of burner is generally equipped with a center injector and an outer ring injector, but the combustion performance of this gas burner is found to be not ideal in the experiment, and the primary air is supplied to the center flame head and the outer flame The speed of the head is uneven, and due to the uneven suction of the center injector and the outer ring injector, the incomplete mixing of the gas and the primary air will also cause the flame length of the center fire and the outer ring fire to be different. At the same time, the ejector tube Restricted by the height of the upper air intake burner, it cannot be made too long, resulting in high channel resistance, and yellow flames are prone to appear when the power is high, especially in the small fire gear, the yellow flame is more obvious

And in order to solve the problem that the ejector tube of the upper air inlet burner cannot be made too long, a Chinese invention patent "High-power double gas stove with multi-circle concentric flame crown" is a patent No. ZL200680014368. Burner> It provides a burner with a minimum of four mixing venturi chambers, a central chamber with a vertical axis above the first nozzle and a minimum of three evenly spaced chambers with an inclined axis , which are respectively supplied by different nozzles, as in the case of a burner with four venturi chambers, although three chambers with inclined axes allow a larger Combustion heat, but still does not resolve the relative distance between the first nozzle located in the central cavity and the central Venturi mixing chamber, the reason for this is that the dual burner includes a circular basin-shaped body located under the panel, the term "bottom cup ", without changing the height of the overall burner, the height of the central Venturi mixing chamber still cannot be made longer, and its length is still relatively short, so that the combustibility of the inner ring corresponding to the central Venturi mixing chamber is still not enough Ideally, in the end, the gas burner’s outer ring fire cover corresponds to a cavity with an inclined axis, and there is still an uneven gas pressure that will cause the outer ring fire cover to flow out of the fire holes along the circumferential direction, resulting in the outer ring fire. The flame of the outer ring fire produced by the cover is uneven. In order to avoid the problem of uneven flame, it is necessary to further improve the existing upward air-flow burner

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