Fire cover and high-efficiency burner applying fire cover

Abstract

The invention relates to a fire cover of a gas burner. The fire cover of the gas burner comprises an annular first fire cover body, wherein the first fire cover body comprises an annular top surface,and an inner ring wall and an outer ring wall extending vertically or inclinedly downwards from the inner side edge and the outer side edge of the annular top surface; a first gas mixing cavity is formed among the annular top surface, the inner ring wall and the outer ring wall; main fire holes are formed in the outer ring wall at intervals in the circumferential direction; and in the annular topsurface, the outer ring surface of the outer ring wall, and the outer ring surface of the inner ring wall, the outer ring surface of the outer ring wall is in a circular arc shape at least. The invention further relates to a high-efficiency burner applying the fire cover. Compared with the prior art, according to the fire cover and the high-efficiency burner applying the fire cover provided by theinvention, by utilizing a wall attachment effect, air tightly wraps the outer ring surface of the outer ring wall, so that a supply path of secondary air is shortened, and the secondary air can be more efficiently supplemented. Therefore, on the basis of an existing ejection system, through improving the fire cover, the secondary air supply efficiency can be effectively improved, so that the burning efficiency of the gas burner is improved.

Description

technical field [0001] The invention relates to the field of gas stoves, in particular to a fire cover and a high-efficiency burner using the fire cover. Background technique [0002] The gas burner includes a base, a gas mixing chamber, an outer ring fire cover and an inner ring fire cover, wherein the gas mixing chamber is set above the base, and the outer ring fire cover and the inner ring fire cover are respectively set above the gas mixing chamber . Among them, the outer ring fire cover is generally ring-shaped, including an annular top wall, an inner ring wall and an outer ring wall extending vertically downward or obliquely downward from the inner and outer sides of the annular top wall, and the annular top wall 1. The inner ring wall and the outer ring wall are surrounded to form a gas mixing chamber, and the outer ring wall is provided with an outer ring fire hole. The inner ring fire cover generally includes a cylindrical base and a cover body covering the base, ...

AI Technical Summary

Problems solved by technology

However, in the existing burner structure as mentioned above, the supply capacity of secondary air is limited, which is far from meeting the needs of more efficient combustion (75%)

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