CN209944334U

CN209944334U - Burner fire cover

Info

Publication number: CN209944334U
Application number: CN201920312791.XU
Authority: CN
Inventors: 程永超; 杨萍; 张帅; 郑军妹
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-03-12
Filing date: 2019-03-12
Publication date: 2020-01-14
Anticipated expiration: 2029-03-12

Abstract

The utility model relates to a combustor fire lid, including cyclic annular roof and with from this cyclic annular roof the inboard edge and outside edge vertical or slope form the gas mixing chamber between the decurrent inner ring wall and the outer rampart, outer rampart along circumference interval be equipped with about two rows with main fire hole and the steady flame hole that the gas mixing chamber is linked together, its characterized in that is corresponding at least one steady flame hole on the vertical direction position of main fire hole, compare with prior art, the utility model has the advantages of be provided with two rows of fire holes about being provided with on the outer rampart of combustor fire lid, main fire hole and steady flame hole promptly, steady flame hole and main fire hole align in vertical direction and set up, and the flame of steady flame hole is the shortest to the distance of main fire hole flame effect, can pull main fire hole betterly, play better steady flame effect.

Description

Burner fire cover

Technical Field

The utility model relates to a combustor fire lid for gas-cooker especially relates to a fire lid structure with better steady flame effect.

Background

At present, the fire lid of gas-cooker usually comprises roof, annular inside wall and annular lateral wall, and it has a plurality of main fire hole to open along its circumferencial direction on the annular lateral wall of fire lid, and only including the single row fire hole on the annular lateral wall of current gas-cooker fire lid, this type of patent document can refer to the chinese utility model patent of patent number ZL200520014838.2 for a gas-cooker combustor toper fire lid (grant No. CN2842216Y), can also refer to chinese utility model patent of patent number ZL201120246965.0 for a combustor fire lid (grant No. CN 202149492U). The single main fire hole combustion mode disclosed above has the disadvantages that the flame is easy to jump after combustion, and the combustion area is unstable, and meanwhile, the single row of fire holes not only causes the combustion thermal efficiency of the gas stove to be low, but also causes the gas combustion to be insufficient, thereby causing the emission of carbon monoxide gas and aggravating the environmental pollution.

Therefore, the utility model discloses a chinese utility model patent with patent number ZL201720664132.3 (the publication number is CN206875429U) discloses a self-stabilizing firework cover, which comprises a firework cover main body, the firework cover main body can enclose a gas mixing chamber with the furnace end, a main fire hole is arranged on the firework cover main body, the gas outlet of the main fire hole is communicated with the outer wall of the firework cover main body, a flame stabilizing wall is arranged on the firework cover main body, a flame stabilizing gap is formed between the inner wall of the flame stabilizing wall and the gas mixing chamber, the air inlet of the main fire hole is communicated with the flame stabilizing gap, and by means of the structure, the flow rate of gas entering the main fire hole can be reduced, the flow rate of gas in each main fire hole is enabled to be more consistent, the flame of a gas cooker is enabled to be more stable, and the flame size is more uniform. In addition, the gas outlets of the main fire holes and the gas outlets of the flame stabilizing holes are sequentially staggered along the outer side surface of the fire cover main body, so that interference between the main fire holes and the flame stabilizing holes can be avoided when the main fire holes and the flame stabilizing holes are machined, and the height of the fire cover main body can be reduced; however, in the use process, the main fire holes and the flame stabilizing holes are arranged in a staggered manner, so that the best flame stabilizing effect cannot be achieved; in addition, the gas outlet of the flame stabilizing hole is smaller than the gas outlet of the main fire hole and is positioned below the gas outlet of the main fire hole, so that the flame stabilizing hole is easily blocked by liquid such as overflowing liquid in the cooking process, and therefore, the fire cover needs to be further improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the first technical problem that provides an effectual combustor fire lid of steady flame to above-mentioned prior art current situation.

The second technical problem to be solved by the present invention is to provide a burner fire cover with stable flame holes that are not easily blocked by spilled liquid, aiming at the current situation of the prior art.

The utility model aims to solve the third technical problem that to above-mentioned prior art current situation and provide a difficult appearance main fire hole in keeping away a pot support department and appearing passing the combustor fire lid that the phenomenon that the fire blocked takes place.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the burner fire cover comprises an annular body, the annular body comprises an annular top wall, and a gas mixing cavity formed between an inner annular wall and an outer annular wall, wherein the inner edge and the outer edge of the annular top wall are vertical or inclined downwards, the outer annular wall is provided with an upper row of main fire holes and a lower row of stable fire holes at intervals along the circumferential direction, and the main fire holes and the stable fire holes are communicated with the gas mixing cavity, and the burner fire cover is characterized in that: at least one flame stabilizing hole is arranged at the vertical position corresponding to the main fire hole.

In order to prevent the gas outlet of the flame stabilizing hole from being easily blocked by liquid such as overflowing liquid because the gas outlet of the flame stabilizing hole is smaller than the gas outlet of the main fire hole, the flame stabilizing hole is positioned above the main fire hole.

In order to further ensure that the flame stabilizing hole is not blocked by liquid such as overflowing liquid, a waterproof brim which shields the upper part of the flame stabilizing hole extends outwards along the radial direction on the outer periphery of the annular top wall.

In order to better assist the flame stabilizing holes to the flame stabilizing of the main flame holes, at least one auxiliary flame stabilizing hole is further arranged between the adjacent flame stabilizing holes, and the auxiliary flame stabilizing holes and the main flame holes are arranged in a staggered mode.

Furthermore, the annular top wall is radially provided with a transverse ignition hole, the bottom of the transverse ignition hole is provided with a through hole communicated with the gas mixing cavity, the outer side of the transverse ignition hole is opened on the outer annular wall, and the inner side of the transverse ignition hole is opened on the inner annular wall. Because main fire hole sets up along the outer rampart circumference of fire lid, wherein main fire hole is not seted up in pot support's position to the fire lid, prevent the firing of main fire hole to pot support, for this reason the fire lid is in keeping away pot support department and leading to passing fire to block because of not establishing main fire hole easily, and the steady fire hole of this application and supplementary steady flame hole evenly arrange along circumference to can smoothly pass to main fire hole with the fire that the inboard opening in horizontal ignition hole was drawn, avoid passing fire to block in ground main fire hole.

In order to realize that the gas in the gas mixing cavity enters the main fire hole and/or the flame stabilizing hole more quickly, the inner circumferential surface of the outer ring wall is provided with a flow channel for accelerating the flow of the gas at the gas inlet part of the main fire hole and/or the flame stabilizing hole.

Further, the flow channel is a groove which is concave from inside to outside. The groove can also enable the gas in the gas mixing cavity to enter the main fire hole and/or the flame stabilizing holes more uniformly so as to obviously improve the combustion efficiency of the gas stove.

Preferably, the main fire hole and the flame stabilizing hole are provided with respective grooves, the number of the grooves is two, the grooves are respectively a first groove and a second groove, the first grooves are communicated with the air inlets of the main fire holes, and the second grooves are communicated with the air inlets of the flame stabilizing holes.

Compared with the prior art, the utility model has the advantages of be provided with two rows of fire holes about being provided with on the outer rampart of combustor fire lid, main fire hole promptly and steady flame hole, steady flame hole and main fire hole align in vertical direction and set up, and the flame in steady flame hole is shortest to the distance of main fire hole flame effect, can pull main fire hole betterly, plays better steady flame effect.

Drawings

FIG. 1 is a schematic view of a burner fire cover according to an embodiment of the present invention;

FIG. 2 is a schematic view of another angle of FIG. 1;

fig. 3 is a cross-sectional view of fig. 1.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in FIGS. 1 to 3, the preferred embodiment of the present invention is shown. The burner fire cover of the embodiment comprises an annular top wall 11, and a gas mixing cavity 14 formed between an inner annular wall 12 and an outer annular wall 13 which are vertically or obliquely downward from the inner edge and the outer edge of the annular top wall 11, wherein the outer annular wall 13 is provided with an upper row of main fire holes 131 and a lower row of flame stabilizing holes 132 which are communicated with the gas mixing cavity 14 at intervals along the circumferential direction, and at least one flame stabilizing hole 132 is arranged at the position corresponding to the main fire holes 131 in the vertical direction. Two rows of fire holes about being provided with on the outer rampart 13 of combustor fire lid, main fire hole 131 and steady flame hole 132 promptly, main fire hole 131 has one steady flame hole 132 at the position of vertical direction correspondence at least to steady flame hole 132 aligns the setting in vertical direction with main fire hole 131, and the flame of steady flame hole 132 is the shortest to the distance of main fire hole 131 flame effect, can pull main fire hole 131 betterly, plays better steady flame effect. In order to prevent the gas outlet of the flame stabilizing hole 132 from being easily blocked by liquid such as spilled liquid because the gas outlet of the flame stabilizing hole 132 is smaller than the gas outlet of the main flame hole 131, the flame stabilizing hole 132 is located above the main flame hole 131, and in order to ensure that the flame stabilizing hole 132 is not blocked by liquid such as spilled liquid, the outer periphery of the annular top wall 11 extends radially outward to form a waterproof brim 111 covering the upper side of the flame stabilizing hole 132.

In order to better assist the flame stabilizing of the main flame holes 131 by the flame stabilizing holes 133, at least one auxiliary flame stabilizing hole 133 is further disposed between the adjacent flame stabilizing holes 132, and the auxiliary flame stabilizing holes 133 are staggered with the main flame holes 131. In the embodiment, the annular top wall 11 is provided with the transverse ignition hole 2 along the radial direction, the bottom of the transverse ignition hole 2 is provided with a through hole 21 communicated with the gas mixing cavity 14, the outer side opening 22 of the transverse ignition hole 2 is arranged on the outer annular wall 13, and the inner side opening 23 of the transverse ignition hole 2 is arranged on the inner annular wall 12. Because main fire hole 131 sets up along the outer rampart 13 circumference of fire lid, main fire hole 131 is not seted up to its wherein fire lid in pot support's position, prevent the ignition of main fire hole 131 to pot support, for this reason the fire lid is in avoiding pot support department easily because of not setting up main fire hole 131 and leading to the biography fire to block, and steady fire hole and supplementary steady flame hole 133 evenly arrange along circumference, can smoothly pass to main fire hole 131 with the fire that the inboard opening 23 of horizontal ignition hole 2 draws, avoid the biography fire of ground main fire hole 131 to block, steady flame hole 132 and supplementary steady flame hole 133 not only have the effect of stabilizing flame and still have the effect of passing to main fire hole 131 with the fire of horizontal ignition hole 2 for this reason.

Finally, in order to achieve that the gas in the gas mixing chamber 14 enters the main fire holes 131 and/or the flame stabilizing holes 132 more rapidly, the inner circumferential surface of the outer annular wall 13 has a flow channel for accelerating the flow of the gas at the gas inlet portion of the main fire holes 131 and/or the flame stabilizing holes 132. From the viewpoint of simple processing, the flow channel is a groove which is concave from inside to outside, and in the preferred embodiment, the main flame holes 131 and the flame stabilizing holes 132 have respective grooves, and the number of the grooves is two, namely a first groove 3 and a second groove 4, the first groove 3 communicates with the air inlets of the main flame holes 131, and the second groove 4 communicates with the air inlets of the flame stabilizing holes 132. The first groove 3 can enable gas in the gas mixing cavity 14 to enter the main fire hole 131, and the second groove 4 can enable gas in the gas mixing cavity 14 to enter the flame stabilizing hole 132 more uniformly, so that the combustion efficiency of the gas stove is remarkably improved.

Claims

1. The burner fire cover comprises an annular body (1), wherein the annular body (1) comprises an annular top wall (11) and an air mixing cavity (14) formed between an inner annular wall (12) and an outer annular wall (13) which are vertical or inclined downwards from the inner edge and the outer edge of the annular top wall (11), the outer annular wall (13) is provided with an upper row of main fire holes (131) and a lower row of main fire holes (132) communicated with the air mixing cavity (14) and a flame stabilizing hole (132) at intervals along the circumferential direction, and the burner fire cover is characterized in that: at least one flame stabilizing hole (132) is arranged at a vertical position corresponding to the main fire hole (131).

2. The burner fire cover of claim 1, wherein: the flame stabilizing hole (132) is positioned above the main fire hole (131).

3. The burner fire cover of claim 2, wherein: the outer periphery of the annular top wall (11) extends outwards in the radial direction to form a waterproof brim (111) which is shielded above the flame stabilizing hole (132).

4. The burner fire cover according to any one of claims 1 to 3, characterized in that: at least one auxiliary flame stabilizing hole (133) is further arranged between the adjacent flame stabilizing holes (132), and the auxiliary flame stabilizing holes (133) and the main flame holes (131) are arranged in a staggered mode.

5. The burner fire cover of claim 4, wherein: the annular top wall (11) is provided with a transverse ignition hole (2) along the radial direction, the bottom of the transverse ignition hole (2) is provided with a through hole (21) communicated with the gas mixing cavity (14), the outer side opening (22) of the transverse ignition hole (2) is arranged on the outer annular wall (13), and the inner side opening (23) of the transverse ignition hole (2) is arranged on the inner annular wall (12).

6. The burner fire cover according to any one of claims 1 to 3, characterized in that: the inner circumferential surface of the outer ring wall (13) is provided with a flow channel for accelerating the flowing of the fuel gas at the air inlet part of the main fire hole (131) and/or the flame stabilizing hole (132).

7. The burner fire cover of claim 6, wherein: the flow channel is a groove which is concave from inside to outside.

8. The burner fire cover of claim 7, wherein: the recess has two, is first recess (3) and second recess (4) respectively, first recess (3) communicate each the air inlet of main fire hole (131), second recess (4) communicate each the air inlet of steady flame hole (132).