Burner for gas cooker

Abstract

The invention relates to a burner for a gas cooker. The burner comprises a base and a first connecting body, wherein the base is provided with a concave cavity located at the center and a peripheral cavity surrounding the concave cavity, and the center of the concave cavity is provided with a vertical second injection channel with an upward opening; the first connecting body is connected with a second nozzle seat and a second connecting body arranged above the first connecting body. Compared with the prior art, the burner for the gas cooker has the advantages that the peripheral cavity in a sandwich structure of the base communicates with a first gas channel of the first connecting body and a second gas channel of the second connecting body, and the length of gas channels in the base is increased equivalently; the mixing uniformity of gas and primary air is further improved; besides, a second injector is connected to the first connecting body of the base through the second nozzle seatand suspended above the concave cavity of the base and faces the second injection channel; and once overflow liquid goes into the concave cavity of the base, normal use of the burner cannot be affected by blockage of the injectors.

Description

technical field [0001] The invention relates to a burner for a gas cooker, in particular to an upward air-intake burner for a cooker. Background technique [0002] At present, many gas cookers have begun to use fully upward air-intake burners. Since the complete upward air-intake burners burn, the primary and secondary air required for combustion come from the upper part of the cooker panel, so the chassis of the gas cooker It can be fully sealed. Compared with the traditional bottom air intake structure burner, the completely upward air intake burner is not only safer to use, but also can well solve the problem of stove flameout caused by opening and closing the cabinet door. However, the traditional completely upward air-intake burner is realized through the gap between the air-mixing chamber and the base when the primary air is supplemented. The problem caused by this is that there is a gap between the air-mixing chamber and the base. After the mounting screws are instal...

AI Technical Summary

Problems solved by technology

However, the traditional completely upward air-intake burner is realized through the gap between the air-mixing chamber and the base when the primary air is supplemented. The problem caused by this is that there is a gap between the air-mixing chamber and the base. After the installation screws are installed, the installation screws can be seen from the outside of the burner, resulting in an unattractive appearance of the burner

Moreover, after a gap is set between the base and the mixing chamber, the overflow will flow through the gap into the base and the circular basin-shaped main body located under the panel, that is, the term "bottom cup" to block the injector, which is harmful to the user's maintenance, There are many inconveniences in cleaning, and if the overflow is not cleaned for a long time, it will affect the normal use of the burner

[0003] At the same time, the primary air supplemented by this type of upper air intake burner from above the panel enters the "bottom cup" by using the negative pressure generated by the nozzle gas injection, which is likely to cause uneven distribution of the primary air flow and affect the primary air flow to a certain extent. coefficient, so that the pressure of the gas flowing out of the fire holes arranged along the circumferential direction of the outer ring fire cover or the inner ring fire cover is uneven, resulting in the outer ring fire generated by the outer ring fire cover or the inner ring fire generated by the inner ring fire cover. The flame is not uniform, and the incomplete mixing of gas and 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 is limited by the height of the upper air intake burner, so it cannot be made too long, resulting in the channel The resistance is large, and the yellow flame is easy to appear when the power is high, especially in the small fire gear, the yellow flame is more obvious

Images