burner

Abstract

A burner comprises a base, an outer fire cover and an inner fire cover. The base is provided with the outer outlet and the inner outlet; openings of the outer outlet and the inner outlet are upward; the base is connected with an ejector pipe for fuel gas to enter into. The burner is characterized by also comprising an outer fuel gas base which is in an annular shape; the outer fuel gas base is arranged on the base and covers the outer outlet; the inner gas mixing chamber is formed between the inner side wall of the outer fuel gas base and the inner outlet; the outer fuel gas base comprises a vertical channel and a horizontal channel; the fuel gas of the outer outlet can be introduced into the gas mixing chamber through the vertical channel and the air can be introduced into the inner gas mixing chamber horizontally through the horizontal channel; the outer fire cover covers the upper end surface of the outer fuel gas base to form the gas mixing chamber. Compared with the prior art, horizontal ejecting is performed on the upper inlet air through an inner ring, long horizontal ejecting is still performed on the lower inlet air through an outer ring, and accordingly the problem of the flameout when a cabinet door is opened or closed can be thoroughly solved, the nozzle blocking by liquid spill can be effectively prevented, and meanwhile the overall load can be large and the efficiency can be high.

Description

technical field [0001] The invention relates to a burner, which is applied to kitchen gas stoves. Background technique [0002] From the perspective of national policies and residents' needs, low carbon emissions and low energy consumption have become a more important topic in civil gas appliances. At present, ordinary atmospheric burners have achieved the ultimate in low emission and high efficiency, and have achieved a combustion technology with a thermal efficiency of 60% (GB16410-2007). The advantages of upward air-flow burners are obvious, such as safety, cleanliness, and built-in gas appliances are not easily affected by the cabinet door switch. However, the upward-inlet burner cannot reliably achieve a thermal efficiency of 60% (GB16410-2007). [0003] The most important thing for large-load civil gas appliances to achieve energy saving and high efficiency is to have a certain length of ejector tube, which includes mixing tube, diffuser tube, throat, etc. Although ...

AI Technical Summary

Problems solved by technology

At present, although the flame injection system of the burner is relatively in place, due to the structural limitation of the upward air intake combustion, the ejector tube of the burner is generally short, which affects the ejection of the burner.

[0004] Many improvements have been made to the upward airflow burner in the prior art. The reference patent number is ZL200620155563.9, the Chinese utility model patent "Completely upward airflow gas cooker burner" (authorized announcement number is CN200993364Y), this patent adopts the ultra-long Not only does the structure of the ejector tube become much more complicated, but it is only suitable for cookers with an even number of burners, so the application is relatively limited.

[0005] The Chinese invention patent application with the application number 200810220263.8 discloses "A Multi-Nozzle, Large-Flow, Completely Updraft Embedded Burner for Household Gas Stove" (publication number CN101446415A). In this application, the ejector tube can only be limited to the burner Within the diameter range, the injection tube is still short, the injection effect is not good, and less air is added

[0006] Patent No. ZL201020242405.3 is a Chinese utility model patent "A Completely Upward Air-intake Stove Burner" (authorized announcement number is CN201715507U). This patent places the burner above the panel. The burner is exposed above the cooker panel, which affects the structure of the burner and the appearance design of the product. At the same time, there are many inconveniences to the maintenance and cleaning of the user

[0007] Patent No. ZL201110112722.2 is a Chinese invention patent "An Anti-Tempering Updraft Adjustable Air Gas Cooker" (authorized announcement number is CN102147117B). The gas cooker of this patent needs to be installed and used with holes on the panel or the liquid receiving plate , used to enter the air, it can be seen that the installation is more cumbersome

[0008] To sum up, the downward air intake is prone to the problem of flameout when opening and closing the cabinet door. In addition, the sealing performance of the cabinets is getting better and better, so the problem of opening and closing the cabinet door and the stove flameout is becoming more and more prominent; completely upward airflow does not Opening and closing the cabinet door to turn off the flame, but within the effective diameter range, it is difficult to increase the heat load and increase the efficiency

In addition, the upward air intake burner often adopts vertical ejection, and the nozzle is easily blocked by overflow liquid

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