CN216557136U

CN216557136U - Burner fire cover for gas stove and stove applying burner fire cover

Info

Publication number: CN216557136U
Application number: CN202121480641.3U
Authority: CN
Inventors: 刘帅; 蔡国汉; 俞瑜; 朱志新
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2020-06-30
Filing date: 2021-06-30
Publication date: 2022-05-17
Anticipated expiration: 2031-06-30
Also published as: CN216307785U; CN113864784A; CN217004467U; CN216557135U

Abstract

The utility model relates to a burner fire cover for a gas stove and a stove using the burner fire cover, comprising a fire cover body, wherein the annular peripheral wall of the fire cover body is circumferentially provided with a main fire hole and a first flame stabilizing hole positioned at the lower row of the main fire hole, the annular peripheral wall is also circumferentially provided with a groove intersected with the main fire hole, and the included angle alpha between the central line of the first flame stabilizing hole and the central line of the groove is an acute angle. The air outlet speed of the first flame stabilizing holes can be reduced by hedging so as to improve the flame stabilizing effect.

Description

Burner fire cover for gas stove and stove applying burner fire cover

Technical Field

The utility model relates to a burner of a gas cooker, in particular to a burner fire cover for a gas cooker and a cooker applying the burner fire cover.

Background

At present, the fire lid of gas-cooker comprises roof, annular inside wall and annular lateral wall usually, and it has a plurality of main fire hole to open along its circumferencial direction on the annular lateral wall of fire lid, only including the single row fire hole on the annular lateral wall of current gas-cooker fire lid, and the patent document of this type can refer to chinese utility model patent that patent number is ZL200520014838.2 for a gas-cooker combustor toper fire lid (grant No. CN2842216Y), can also refer to chinese utility model patent that patent number is ZL201120246965.0 for a combustor fire lid (grant No. CN 202149492U). The single main fire hole combustion mode disclosed above has the defects that flame is easy to jump after combustion, and a combustion area is unstable, and meanwhile, the single row of fire holes not only cause low combustion heat efficiency of a gas stove, but also cause insufficient combustion of gas, so that the emission of carbon monoxide gas is caused, and the environmental pollution is aggravated, therefore, in order to strengthen the stability of a burner fire cover, the structure of the existing fire cover is required to be further improved.

SUMMERY OF THE UTILITY MODEL

The first technical problem to be solved by the present invention is to provide a burner fire cover for a gas stove, which can improve the combustion stability, in view of the above-mentioned prior art.

The second technical problem to be solved by the present invention is to provide a cooking appliance with the burner fire cover in view of the above prior art.

The technical scheme adopted by the utility model for solving the first technical problem is as follows: the burner fire cover for the gas stove comprises a fire cover body, wherein a main fire hole and a first flame stabilizing hole located below the main fire hole are circumferentially arranged on the annular peripheral wall of the fire cover body, a groove intersected with the main fire hole is circumferentially formed in the annular peripheral wall, and an included angle alpha between the central line of the first flame stabilizing hole and the central line of the groove is an acute angle.

In order to further prevent the gas outlet speed of the main fire hole in the fire cover body from being too high and causing flame separation, preferably, the annular peripheral wall of the fire cover body and the main fire hole are further provided with second flame stabilizing holes which are sequentially and alternately arranged, and the groove is intersected with the second flame stabilizing holes. Firstly, the second flame stabilizing holes and the main flame holes are sequentially arranged in a staggered manner, so that the main flame holes can be better pulled, a better flame stabilizing effect is achieved, and then the second flame stabilizing holes are intersected with the grooves, so that on one hand, gas flowing out of the main flame holes can be shunted, the gas flowing out of the main flame holes is slowed down, the combustion of the gas is stable, and the gas is not easy to leave flames; on the other hand, the second flame stabilizing holes can be connected into a circle of flame ring in the groove, so that the flame stabilizing effect is achieved, and the flame stabilizing effect on the main flame holes is better.

In order to solve the second technical problem, the utility model provides a cooker applying the burner fire cover, which comprises an installation seat and is characterized in that: the mounting seat is further provided with a gas mixing chamber, the gas mixing chamber is provided with the fire cover body, and the outer ring wall surface of the gas mixing chamber gradually inclines towards the first flame stabilizing hole from bottom to top. Wherein, the outer ring wall of the air mixing chamber inclines towards the first flame stabilizing hole, so that secondary air can be supplemented to the first flame stabilizing hole better.

In order to realize that the secondary air can be supplemented to the first flame stabilizing hole better, preferably, an inward contracting area is formed by locally and radially contracting inwards under the outer ring wall surface of the air mixing chamber adjacent to the first flame stabilizing hole. Because the retraction area can generate air vortex in the supplementing process, the air vortex can suck more air to enter the flame root of the first flame stabilizing hole, so that the air is supplemented more sufficiently, the combustion efficiency is improved, and the smoke is reduced.

In order to realize better cleaning of the cooking range by a user, preferably, the mounting seat is further provided with an injection pipe and an injector, wherein an air outlet of the injection pipe is communicated with the gas mixing chamber, an air inlet of the injection pipe is communicated with the injector, the injector is limited on an injection seat extending out of the mounting seat, and the injection seat is provided with a supporting part for supporting the gas mixing chamber. Because the gas mixing chamber is only placed on the spraying seat, and excessive connecting parts are not arranged between the gas mixing chamber and the spraying seat, when a user cleans the stove, the user only needs to directly take up the gas mixing chamber to enable the mounting seat to be basically in a plane except the spraying seat, so that the cleaning is convenient, and the gas mixing chamber is also easily placed on the gas mixing chamber after being cleaned.

Furthermore, the outer ring wall surface of the air mixing chamber extends downwards to form a circle of skirt edge, and the skirt edge is provided with a gap for supplementing air corresponding to the injection seat. When can block the overflow through the shirt rim outside spraying the seat, because the setting of breach can also promote primary air and get into the sprayer better, improve the index of refraction of primary air.

In order to avoid the decrease of kinetic energy caused by the pressure decrease from the gas inlet to the gas outlet of the gas in the injection pipe, preferably, a protrusion part higher than the gas outlet is arranged on the bottom wall of the gas mixing chamber corresponding to the downstream of the gas outlet of the injection pipe. This bellying can make the gas can be by "accelerating" through the bellying when the gas outlet flows out, gives the bigger power flow direction of gas and mixes the gas chamber for draw the regional flame that can keep stable and even of going out of fire of the fire lid body that penetrates the pipe and correspond.

Compared with the prior art, the utility model has the advantages that the double rows of flame stabilizing holes are arranged on the annular circumferential wall of the fire cover body, namely the main flame holes positioned at the upper row and the first flame stabilizing holes positioned at the lower row, the first flame stabilizing holes are used for stabilizing the flame and the grooves intersected with the main flame holes can form a pressure stabilizing part, a circle of fire outlet rings can be formed, the combustion efficiency of the fire cover body can be obviously improved while the main flame stabilizing holes are stabilized, and the reason that the first flame stabilizing holes are not intersected with the grooves is that: first steady flame hole can act as the effect of the main fire hole of second row, can improve the combustion thermal efficiency of fire lid body, and the contained angle alpha of first steady flame hole and recess is the acute angle, can reduce the speed of giving vent to anger in first steady flame hole to the purpose that promotes steady flame effect.

Drawings

FIG. 1 is a schematic structural diagram of a fire lid body according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view at an angle of FIG. 1;

FIG. 3 is a cross-sectional view at another angle from FIG. 1;

FIG. 4 is a schematic view of a burner according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view of a burner mounted to a mount in an embodiment of the utility model;

FIG. 6 is a schematic structural diagram of a mounting base according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a gas mixing chamber according to an embodiment of the present invention.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

As shown in FIGS. 1 to 7, the preferred embodiment of the present invention is shown. The burner fire cover for the gas stove comprises a fire cover body 1, wherein a main fire hole 11 and a first flame stabilizing hole 12 located below the main fire hole 11 are circumferentially arranged on the annular peripheral wall of the fire cover body 1, a groove 13 intersected with the main fire hole 11 is also circumferentially formed in the annular peripheral wall, and an included angle alpha between the central line of the first flame stabilizing hole 12 and the central line of the groove 13 is an acute angle. Set up double hole of firing on the annular perisporium of fire lid body 1, be located the main fire hole 11 of going up promptly and be located the first steady flame hole 12 of row down, first steady flame hole 12 is used for steady flame main fire hole 11 and then can constitute steady voltage portion with the crossing recess 13 in main fire hole 11, can form the play fire ring of round, can also show the combustion efficiency who improves fire lid body 1 when steady flame lives main fire hole 11, and first steady flame hole 12 does not lie in with the crossing reason of recess 13: the first flame stabilizing holes 12 can serve as the second row of main flame holes 11, the combustion heat efficiency of the fire cover body 1 can be improved, the included angle alpha between the first flame stabilizing holes 12 and the groove 13 is an acute angle, the air outlet speed of the first flame stabilizing holes 12 can be reduced in a hedging mode, and the purpose of improving the flame stabilizing effect is achieved. In order to further prevent the gas outlet speed of the main fire holes 11 in the fire cover body 1 from being too fast and causing flame separation, the annular peripheral wall of the fire cover body 1 and the main fire holes 11 of the embodiment are further provided with second flame stabilizing holes 14 which are sequentially and alternately arranged, and the grooves 13 are intersected with the second flame stabilizing holes 14. Firstly, the second flame stabilizing holes 14 and the main flame holes 11 are sequentially arranged in a staggered manner, so that the main flame holes 11 can be better pulled, a better flame stabilizing effect is achieved, and then, the second flame stabilizing holes 14 are intersected with the grooves 13, so that on one hand, gas flowing out of the main flame holes 11 can be shunted, the gas flowing out of the main flame holes 11 is slowed down, the combustion of the gas is stable, and the gas is not easy to leave flames; on the other hand, the second flame stabilizing holes 14 are connected into a circle of flame ring in the groove 13, thereby playing a flame stabilizing role, and ensuring that the flame stabilizing effect on the main flame holes 11 is better.

The embodiment also provides a cooker applying the burner fire cover, which comprises an installation base 2, wherein a gas mixing chamber 3 is further arranged on the installation base 2, a fire cover body 1 is arranged on the gas mixing chamber 3, the outer ring wall surface of the gas mixing chamber 3 is gradually inclined towards a first flame stabilizing hole 12 from bottom to top, and the outer ring wall surface of the gas mixing chamber 3 is inclined towards the first flame stabilizing hole 12, so that secondary air can be better supplemented to the first flame stabilizing hole 12. In addition, in order to realize that the secondary air can be better supplemented to the first flame stabilizing holes 12, the outer ring wall surface of the air mixing chamber 3 is also locally and radially inwards contracted under the first flame stabilizing holes 12 to form an inwards contracted area 31, and because the inwards contracted area 31 can generate air vortex in the supplementing process, the air vortex can roll up more air to enter the flame roots of the first flame stabilizing holes 12, so that the air is supplemented more sufficiently, the combustion efficiency is improved, and the smoke is reduced. In order to achieve better cleaning of the cooking range by a user, preferably, the mounting seat 2 is further provided with an injection pipe 21 and an injector 22, wherein an air outlet 211 of the injection pipe 21 is communicated with the air mixing chamber 3, an air inlet of the injection pipe 21 is communicated with the injector 22, the injector 22 is limited on an injection seat 23 extending outside the mounting seat 2, and a support part 231 for supporting the air mixing chamber 3 is provided on the injection seat 23. Because the gas mixing chamber 3 is only placed on the injection seat 23, and no excessive connecting parts are arranged between the gas mixing chamber 3 and the injection seat 23, when a user cleans the stove, the user only needs to directly take up the gas mixing chamber 3 to enable the mounting seat 2 to be basically a plane except the injection seat 23, so that the gas mixing chamber is convenient to clean, and the gas mixing chamber 3 can be easily placed on the gas mixing chamber after being cleaned. Meanwhile, the outer ring wall surface of the air mixing chamber 3 extends downwards to form a circle of skirt edge 32, and the skirt edge 32 is provided with a gap 321 for air supplement corresponding to the injection seat 23. While the skirt 32 can block the overflow from the ejector seat 23, the notch 321 can promote the primary air to enter the ejector 22 better, thereby improving the index of the primary air. Finally, in order to avoid the decrease of kinetic energy caused by the pressure decrease from the gas inlet 212 to the gas outlet 211 in the ejector tube 21, the bottom wall of the gas mixing chamber 3 of the present embodiment has a raised portion 33 higher than the gas outlet 211 at the downstream of the gas outlet 211 of the ejector tube 21. The convex part 33 can accelerate the gas flowing out from the gas outlet 211 through the convex part 33, and the gas flows into the gas mixing chamber 3 with larger power, so that the fire outlet area of the fire cover body 1 corresponding to the injection pipe 21 can keep stable and uniform flame. The fire lid body 1 of the embodiment is an annular outer ring fire lid, and is certainly also applicable to an inner ring fire lid, and correspondingly, the gas mixing chamber 3 is an outer ring gas mixing chamber.

Claims

1. The burner fire cover for the gas stove comprises a fire cover body (1), wherein a main fire hole (11) and a first flame stabilizing hole (12) located below the main fire hole (11) are circumferentially arranged on the annular peripheral wall of the fire cover body (1), a groove (13) intersected with the main fire hole (11) is circumferentially formed in the annular peripheral wall, and an included angle alpha between the central line of the first flame stabilizing hole (12) and the central line of the groove (13) is an acute angle.

2. Burner fire cover for gas cookers according to claim 1, characterized in that: the annular peripheral wall of the fire cover body (1) and the main fire hole (11) are further provided with second flame stabilizing holes (14) which are sequentially arranged in a staggered mode, and the groove (13) is intersected with the second flame stabilizing holes (14).

3. Cooking appliance applying a burner fire cover according to claim 1 or 2, comprising a mounting (2), characterized in that: still be provided with gas mixing chamber (3) on mount pad (2), be provided with on gas mixing chamber (3) fire lid body (1), the outer lane wall of gas mixing chamber (3) from bottom to top gradually to first steady flame hole (12) slope.

4. Hob according to claim 3, characterized in that: the outer ring wall surface of the gas mixing chamber (3) is adjacent to the lower part of the first flame stabilizing hole (12) and is also locally and radially inwards contracted to form an inwards contracted area (31).

5. Hob according to claim 4, characterized in that: the mounting seat (2) is further provided with an injection pipe (21) and an ejector (22), wherein an air outlet (211) of the injection pipe (21) is communicated with the air mixing chamber (3), an air inlet (212) of the injection pipe (21) is communicated with the ejector (22), the ejector (22) is limited to extend out of the injection seat (23) of the mounting seat (2), and a supporting part (231) used for supporting the air mixing chamber (3) is arranged on the injection seat (23).

6. Hob according to claim 5, characterized in that: the wall surface of the outer ring of the air mixing chamber (3) extends downwards to form a circle of skirt edge (32), and the skirt edge (32) is provided with a gap (321) for supplementing air corresponding to the injection seat (23).

7. The hob according to any one of the claims 5 to 6, characterized in that: the bottom wall of the air mixing chamber (3) is provided with a bulge (33) higher than the air outlet (211) at the downstream corresponding to the air outlet (211) of the injection pipe (21).