CN215808489U

CN215808489U - Anti-backfire combustion system and stove

Info

Publication number: CN215808489U
Application number: CN202121901129.1U
Authority: CN
Inventors: 关杰鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-14
Filing date: 2021-08-14
Publication date: 2022-02-11
Anticipated expiration: 2031-08-14

Abstract

The utility model provides an anti-backfire combustion system and a cooker, which comprises a fire cover, a fire cover base or a burner base, wherein the fire cover is arranged on the fire cover base or the burner base, an air outlet hole is formed in the fire cover, an anti-backfire part is arranged on the fire cover base or the burner base, one side surface of the anti-backfire part is attached to the inner wall of the fire cover, a plurality of anti-backfire holes are formed in the anti-backfire part, the positions of the anti-backfire holes correspond to the positions of the air outlet holes, the anti-backfire holes are formed in the air inlet ends of the air outlet holes, so that the depth of the air outlet holes is prolonged, the backfire limit is reduced, meanwhile, the fire prevention part is insulated, so that the heat transmitted from a combustor to a gas mixing cavity is greatly reduced, the temperature on an air outlet path is reduced, the flame propagation speed is reduced, the backfire limit is also reduced, and the anti-backfire part is attached to the inner wall of the fire cover to form a support, so that the fire cover is difficult to deform, the strength of the fire cover is improved.

Description

Anti-backfire combustion system and stove

Technical Field

The utility model relates to an anti-backfire combustion system and a cooker.

Background

The burner backfire means: the combustion intensity is reduced, the gas outlet speed is reduced, if the gas outlet speed is less than the flame propagation speed, the flame is contracted into the fire hole to be combusted, the phenomenon is called tempering, and the tempering can cause the gas appliance to be incapable of working normally and easily burn combustion equipment. In order to prevent backfire, small fire holes are generally adopted, the heat dissipation of the hole wall to flame is increased, and the flame speed is reduced, but the size of each common fire hole is larger than 1.2mm in order to prevent blockage, so that the structure adopting the small fire holes is limited, whether the flame is backfired can be controlled only through the depth of the fire holes under the condition that the size of the fire holes is certain, and under the condition that the inclination of the fire holes is certain, the deeper the depth of the fire holes means that the wall thickness of a combustor is larger, the more the materials of the combustor are used, the cost of the combustor is increased, and the economic benefit is not met.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides an anti-backfire combustion system and a gas stove, and aims to prolong the depth of a fire hole and reduce the backfire limit.

The utility model provides an anti-backfire combustion system, which comprises a fire cover, a fire cover base or a furnace end base, the fire cover is arranged on the fire cover base or the furnace end base, the fire cover is provided with an air outlet, the fire cover base or the furnace end base is provided with an anti-backfire part, one side surface of the anti-backfire part is attached to the inner wall of the fire cover, a plurality of anti-backfire holes are arranged on the anti-backfire part, the position of the anti-backfire hole corresponds to the position of the air outlet hole, the anti-backfire hole is arranged at the air inlet end of the air outlet hole, thereby prolonging the depth of the air outlet hole, reducing the tempering limit, simultaneously, the heat transferred from the combustor to the gas mixing cavity is greatly reduced due to the heat insulation of the fireproof part, the temperature on the air outlet path is reduced, so that the flame propagation speed is reduced, the tempering limit is also reduced, meanwhile, the anti-backfire part is attached to the inner wall of the fire cover to form a support, so that the fire cover is difficult to deform, and the strength of the fire cover is improved.

In one or more embodiments, the anti-backfire portion is integrally formed with the fire cover base or the burner base, or is spliced or detachably connected with the fire cover base or the burner base.

In one or more embodiments, when the anti-backfire portion is detachably connected or spliced with the fire cover base or the furnace end base, a gas mixing cavity is arranged on the fire cover base or the furnace end base, and the anti-backfire portion is arranged on the gas mixing cavity and attached to the inner wall of the fire cover.

In one or more embodiments, when the anti-backfire portion is integrally formed with the fire cover base or the burner base, a gas mixing cavity is formed on the fire cover base or the burner base, and the anti-backfire portion is integrally formed with an outer wall of the gas mixing cavity.

In one or more embodiments, the outer wall of the anti-backfire portion is attached to the inner wall of the fire cover to form a support.

In one or more embodiments, the vent holes and the anti-flash holes combine to form vent paths that form inclined channels or V-shaped channels or L-shaped channels.

In one or more embodiments, when the outlet paths form inclined channels, the angle between the outlet end of the outlet hole and the inlet end of the anti-backfire hole is between 40 and 60 degrees.

A cooking utensil, includes above-mentioned anti-backfire combustion system.

The utility model has the beneficial effects that: set up through the inlet end at the venthole and prevent the tempering hole to prolonged the degree of depth of venthole, reduced the tempering limit, fire prevention portion separates the temperature simultaneously, makes the heat that transmits the gas mixing chamber from the combustor reduce by a wide margin, and the temperature reduces on the route of giving vent to anger, makes flame propagation speed reduce, has also reduced the tempering limit, prevents simultaneously that tempering portion and fire cover inner wall laminating form the support, makes the fire cover be difficult to warp, has improved the intensity of fire cover.

Drawings

Fig. 1 is a detachable sectional view of a fire cover base or a burner base of an anti-backfire combustion system.

FIG. 2 is a schematic view of the integrated forming of the fire cover base or the burner base of the fire protection portion of the anti-backfire combustion system.

FIG. 3 is a schematic view of the exit path of the anti-backfire combustion system.

FIG. 4 is another schematic view of the exit gas path of the flashback-preventing combustion system.

FIG. 5 is yet another schematic view of the exit gas path of the flashback-preventing combustion system.

FIG. 6 is a schematic view of the gas outlet of the anti-backfire combustion system in different positions of the fire cover.

FIG. 7 is a schematic view of the outlet holes of the backfire prevention combustion system in another position of the fire cover.

Detailed Description

The application scheme is further described below with reference to the accompanying drawings:

referring to the attached drawings 1-7, an anti-backfire combustion system comprises a fire cover 2, a fire cover base or a furnace end base 1, wherein the fire cover 2 is installed on the fire cover base or the furnace end base 1, an air outlet 21 is formed in the fire cover 2, an anti-backfire portion 3 is arranged on the fire cover base or the furnace end base 1, one side surface of the anti-backfire portion 3 is attached to the inner wall of the fire cover 2, a plurality of anti-backfire holes 31 are formed in the anti-backfire portion 3, and the positions of the anti-backfire holes 31 correspond to the positions of the air outlet 21.

Preferably, the air outlet hole is provided with a first air outlet hole and a second air outlet hole which have different diameters, the diameter of the second air outlet hole is larger than that of the first air outlet hole, the second air outlet hole and the first air outlet hole are arranged in a vertically staggered manner, the first air hole is located above the second air hole or below the second air hole, and the structures of the first air outlet hole and the second air outlet hole belong to the prior art, which is not shown in the figure.

Preferably, the backfire preventing portion 3 is provided on one or both of the centrable air chamber or the outer ring air chamber.

Further, the anti-backfire part 3 and the fire cover base or the furnace end base 1 are integrally formed or spliced or detachably connected.

Further, when the anti-backfire portion 3 is detachably connected or spliced with the fire cover base or the furnace end base 1, a gas mixing cavity 4 is arranged on the fire cover base or the furnace end base 1, and the anti-backfire portion 3 is arranged on the gas mixing cavity 4 and attached to the inner wall of the fire cover 2.

Preferably, when the anti-backfire portion 3 is detachably connected with the fire cover base or the burner base 1, the air mixing chamber 4 is provided with an anti-backfire portion mounting groove, the anti-backfire portion 3 is mounted on the anti-backfire portion mounting groove, or the anti-backfire portion 3 and the air mixing chamber 4 are mounted together by screws, and the specific structure thereof is designed according to actual production, which is not shown here.

Further, when the anti-backfire portion 3 is integrally formed with the fire cover base or the burner base 1, the fire cover base or the burner base 1 is provided with the air mixing cavity 4, and the anti-backfire portion 3 is integrally formed with the outer wall of the air mixing cavity 4.

Further, the outer wall of the anti-backfire part 3 is attached to the inner wall of the fire cover 2 to form a support.

Further, the air outlet holes 21 and the anti-backfire holes 31 form air outlet paths in combination, and the air outlet paths form inclined channels or V-shaped channels or L-shaped channels.

Further, when the air outlet path forms an inclined channel, the angle between the air outlet end of the air outlet hole 21 and the air inlet end of the anti-backfire hole 31 is between 40 and 60 degrees.

A cooking utensil, includes above-mentioned anti-backfire combustion system.

The above preferred embodiments should be considered as examples of the embodiments of the present application, and technical deductions, substitutions, improvements and the like similar to, similar to or based on the embodiments of the present application should be considered as the protection scope of the present patent.

Claims

1. The utility model provides an anti-backfire combustion system, its characterized in that, includes fire lid, fire lid base or furnace end base, the fire lid is installed on fire lid base or furnace end base, be provided with the venthole on the fire lid, be provided with anti-backfire portion on fire lid base or the furnace end base, should prevent a backfire portion side and the laminating of fire lid inner wall, be provided with a plurality of anti-backfire holes in the anti-backfire portion, this anti-backfire hole position corresponds with the venthole position.

2. The backfire prevention combustion system of claim 1, wherein said backfire prevention portion is integrally formed with or spliced to or detachably connected to the fire cover base or the burner base.

3. The backfire preventing combustion system of claim 2, wherein when the backfire preventing part is detachably connected or spliced with the fire cover base or the burner base, a gas mixing cavity is arranged on the fire cover base or the burner base, and the backfire preventing part is arranged on the gas mixing cavity and attached to the inner wall of the fire cover.

4. The backfire prevention combustion system as claimed in claim 2, wherein when the backfire prevention portion is integrally formed with the fire cover base or the burner base, the fire cover base or the burner base is provided with the gas mixing chamber, and the backfire prevention portion is integrally formed with an outer wall of the gas mixing chamber.

5. The backfire proof combustion system of claim 1, wherein said backfire portion outer wall is conformed to said fire cover inner wall to form a support.

6. The flashback-resistant combustion system of claim 1, wherein the gas outlet and flashback-resistant orifice combine to form a gas exit path that forms an inclined channel or a V-channel or an L-channel.

7. The flashback-resistant combustion system of claim 6, wherein the angle between the exit end of the exit orifice and the entry end of the flashback-resistant orifice is between 40 and 60 degrees when the exit path forms an inclined channel.

8. A hob, characterized in, that it comprises an anti-backfire combustion system as claimed in any one of the claims 1-6.