A fire cover for a gas stove

Abstract

The invention relates to a fire cover for a gas stove, comprising a fire cover body, an annular top wall of the fire cover body and an inner wall extending vertically or obliquely downward from the inner edge and the outer edge of the annular top wall. The ring wall and the outer ring wall form a mixed air chamber, the upper surface of the fire cover body forms a fire transmission chamber, and the top wall of the fire transmission chamber is provided with a fire induction groove, which is characterized in that two opposite inner walls of the top opening of the fire induction groove There are at least one pair of through holes that are arranged oppositely and communicated with the gas mixing chamber. The centerlines of each pair of through holes intersect. If the centerlines of each pair of through holes intersect, the gas flowing out of each pair of through holes will counteract, thereby improving the mixing uniformity of gas and air in the pilot groove, reducing the flow rate and improving the flame stability performance .

Description

technical field [0001] The invention relates to a burner for a gas stove, in particular to a fire cover for a gas stove. Background technique [0002] At present, most of the traditional burner fire caps sold on the market are milled with one groove, that is, a fire pilot groove is milled on the top of the fire cap body. If disconnected, it is easy to cause deformation of the fire cover body, thereby affecting the ignition effect. For example, the Chinese invention patent "Gas burner with fire transmission device and flameout protection function" whose patent number is 201220464214.0 (notification number is CN202813375U) discloses a similar fire transmission structure. ring fire hole, and the outer ring fire transmission device is also provided on the outer ring fire spray right, the outer ring fire transmission device is a boss installed on the inner wall of the outer ring fire spray ring The outer ring fire transmission hole and the outer ring fire transmission groove on...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the traditional burner fire caps sold on the market are milled with one groove, that is, a fire pilot groove is milled on the top of the fire cap body. Disconnected, so it is easy to cause deformation of the fire cover body, thus affecting the ignition effect

For example, the Chinese invention patent "Gas burner with fire transmission device and flameout protection function" whose patent number is 201220464214.0 (notification number is CN202813375U) discloses a similar fire transmission structure. ring fire hole, and the outer ring fire transmission device is also provided on the outer ring fire spray right, the outer ring fire transmission device is a boss installed on the inner wall of the outer ring fire spray ring The outer ring fire transmission hole and the outer ring fire transmission groove on the platform and the outer ring fire spraying ring are composed of the outer ring fire transmission hole and the outer ring fire transmission groove, and the outer ring fire transmission hole and the outer ring fire transmission groove are connected with a The flame-spray holes of the outer ring are connected to realize rapid fire transmission; the fire-transfer channel of this fire-transfer structure is open, and the fire transmission is linear, that is, the fire-transfer channel is exposed on the surface of the outer ring fire cover. This design has a The advantage is that the supply of secondary air in the fire transfer tank is sufficient, and the open fire transfer tank can ensure the supply of secondary air when the flame burns in the fire transfer tank, which is conducive to flame combustion and fire transmission, and has the characteristics of fast fire transmission. However, the open fire transfer tank has two disadvantages. First, the open fire transfer tank is easy to cause blockage of the fire transfer tank. Fire performance, which is also the main reason for the blockage and maintenance of the current fire transmission tank; second, the open fire transmission tank has high requirements on the damper of the stove, because when the damper is opened, too much air at one time will cause the airflow velocity to be too high, resulting in When burning, it is away from the flame or out of fire. Therefore, the structural characteristics of the open fire transfer groove are poor flame stability characteristics. Therefore, to ensure the fire transfer performance of the open fire transfer groove, the damper is basically closed very small, but the damper Turning it down is not conducive to the combustion efficiency of the stove, and it is also not conducive to the emission of smoke, which greatly affects the performance of the stove

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