Fire cover with high heat efficiency and furnace head using same

Abstract

The invention discloses a fire cover with high heat efficiency and a furnace head using the same. According to the fire cover with the high heat efficiency, a mode that an inner gas tank is directly communicated with a first gas channel is adopted, so that an inner fire blocking ring is reduced, and on the basis that inner and outer flame integrated arrangement is realized, structure of the fire cover is greatly simplified; and resistance of fuel gas entering the inner gas tank to spray flame is small, spraying speed of the flame is fast, so that a stable and continuous annular spiral inner flame is formed, and therefore combustion efficiency is high, the inner flame is prevented from being too concentrated, and heat transfer efficiency of the flame is reduced.

Description

technical field [0001] The invention relates to a fire cover with high thermal efficiency and a furnace head using the fire cover. Background technique [0002] Most of the fire holes of ordinary household gas stove burners are arranged straight upward or obliquely in a circular shape, and the flame is also sprayed straight upward or obliquely upward. The coverage of the flame is not good, and it can only be heated in a small area at the bottom of cooking tools such as frying pans. . If you want to improve the coverage of the flame, you can only increase the number of annular fire holes, that is, a plurality of concentric annular fire holes are set. Although the coverage area of ​​the flame can be improved like this, the plane area of ​​the burner is relatively large, which is unfavorable for installation and use. Moreover, most traditional burners are produced by casting and die-casting processes. Once the structure is fixed, the combustion power will also be fixed. If yo...

AI Technical Summary

Problems solved by technology

But this solution still has great disadvantages: because the gas channel needs to go through the gas distribution cavity, the inner fire retaining ring and the first groove to be injected from the fire outlet hole, the resistance of the gas in the circulation process is very large, and the gas often arrives The pressure at the inner fire hole is already very small

Although the injection can still be completed, due to the slow injection speed, the injected flame will form an inner flame similar to a flower bud in the center of the inner hole, and the distribution of the flame is very concentrated

When in use, a large vacuum area will be formed between the inner flame and the outer flame, which is not conducive to the good use of the heat generated by gas combustion, but also the uneven heating of the bottom of the pot, which seriously affects the customer's experience

[0005] At the same time, the technical solution recorded in this patent does not solve the problem of insufficient gas mixing in the prior art

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