CN219550515U - Burner cover, burner and burner for gas stove - Google Patents

Abstract

The embodiment of the utility model relates to a fire cover, a furnace end and a burner for combustion of a gas stove. The fire cover comprises a cover body and a side wall surrounding the cover body, wherein the cover body and the side wall define a concave part for containing fuel gas, a plurality of first fire outlets for the fuel gas to flow out and a second fire outlet below the first fire outlets are arranged on the side wall, the first fire outlets and the second fire outlets are communicated with the concave part, the first fire outlets are communicated with the concave part through a first fire outlet channel, the second fire outlets are communicated with the concave part through a second fire outlet channel, and the first fire outlet channel is communicated with the second fire outlet channel. The gas that gets into first fire passageway will have a part by the second gas passageway of shunt channels to can reduce the gas velocity of flow of first fire passageway, the steady voltage effect of play reduces the first possibility that appears leaving the cigarette in fire hole, makes the gas burning more even, improves combustion efficiency.

Description

Burner cover, burner and burner for gas stove

[ field of technology ]

The embodiment of the utility model relates to the field of gas stoves, in particular to a fire cover of a burner, a burner head and the burner.

[ background Art ]

The prior art CN111121020a discloses a fire cover for a gas stove, which comprises a fire cover, wherein the fire cover comprises an outer annular wall, main fire holes are circumferentially arranged on the outer annular wall at intervals, and a diversion hole which is arranged on the outer annular wall and communicated with the bottom of the main fire holes is also included.

[ utility model ]

An object of the embodiments of the present utility model is to provide an improved burner cover, burner head and burner for a gas stove, which aims at least one of the above technical problems, so as to solve the technical problems of uneven combustion and low thermal efficiency caused by flame separation of the burner cover of the gas burner in the prior art.

In order to achieve the above object, an aspect of an embodiment of the present utility model relates to a fire cover of a burner for a gas range. The fire cover comprises a cover body and a side wall surrounding the cover body, wherein the cover body and the side wall define a concave part for containing fuel gas, a plurality of first fire outlets for the fuel gas to flow out and a second fire outlet below the first fire outlets are arranged on the side wall, the first fire outlets and the second fire outlets are communicated with the concave part, the first fire outlets are communicated with the concave part through a first fire outlet channel, the second fire outlets are communicated with the concave part through a second fire outlet channel, and the first fire outlet channel is communicated with the second fire outlet channel.

By adopting the structure, the first fire outlet channel is communicated with the second fire outlet channel, and a part of fuel gas entering the first fire outlet channel is divided into the second fuel gas channels, so that the fuel gas flow rate of the first fire outlet channel can be reduced, the pressure stabilizing effect is achieved, the possibility that smoke is separated from the first fire outlet hole is reduced, the fuel gas is combusted more uniformly, and the combustion efficiency is improved.

Further, for setting up second fire hole and first fire hole on same periphery, the second fire hole sets up in the below of first fire hole, and not only the second goes out the fire passageway and can shunt with the gas of partly getting into first fire passageway to the second goes out the secondary air of fire hole can not influence first fire hole and mends, makes first fire hole can fully mend the secondary air, makes the more abundant of gas combustion, reduces the possibility that carbon monoxide exceeds standard. In addition, the production and the manufacture are convenient, and the production efficiency is improved.

The term "communication" as used herein includes not only direct communication but also indirect communication.

The term "fuel gas" as used herein is not limited to but is understood to be pure fuel gas, and includes a fuel gas-air mixture premixed with air.

In a possible embodiment, the perpendicular projection of the first fire exit channel is collinear with the perpendicular projection of the second fire exit channel. Therefore, the second fire outlet hole is arranged right below the first fire outlet hole, which is beneficial to the production and manufacture of the second fire outlet hole and the second fire outlet channel and the improvement of the overall aesthetic degree of the fire cover.

By "vertical projection" is meant projection onto a horizontal plane.

In a possible embodiment, the fire-fighting device further comprises a first wall forming a first fire-escape channel, the second fire-escape channel extends outwards from the first wall, and the first fire-escape channel and the second fire-escape channel extend in different directions. The second fire outlet channel is made to be a branch channel of the first fire outlet channel, after the fuel gas in the concave part flows into the first fire outlet channel, a part of the fuel gas is split by the second fire outlet channel, so that the total area of the fire outlet holes is increased, the fuel gas flow rate of the first fire outlet channel and the first fire outlet holes can be reduced, the fuel gas is combusted more fully, the possibility of flame separation is reduced, and the combustion efficiency is improved.

In a possible embodiment, the fire protection device further comprises a second air inlet hole communicated with the first fire outlet channel and the second fire outlet channel, the second air inlet hole is positioned on the first wall, and at least part of the fuel gas in the concave part enters the second fire outlet channel through the second air inlet hole after entering the first fire outlet channel.

Therefore, the second air inlet hole of the second fire outlet channel is arranged on the first wall, after the fuel gas of the concave part enters the first fire outlet channel, part of the fuel gas enters the second fire outlet channel through the second air inlet hole, and finally flows out through the first fire outlet hole and the second fire outlet hole. Under the same gas condition, through setting up branched second fire outlet channel and second fire outlet, increased the total area of fire outlet, can also heat the root of main fire hole, stable flame reduces the possibility from the flame.

In a possible embodiment, the first fire-out channel and the second fire-out channel have different angles with the horizontal plane, and the intersection point of the first fire-out channel and the second fire-out channel is located on the inner surface of the side wall facing the recess.

In a possible embodiment, the gas burner further comprises a first gas inlet hole arranged on the inner surface of the side wall, the intersection point is located at the first gas inlet hole, and the gas in the concave portion enters the first fire outlet channel and the second fire outlet channel respectively after passing through the first gas inlet hole, and flows out through the first fire outlet hole and the second fire outlet hole. Therefore, the fuel gas entering the first air inlet hole enters the first fire outlet channel and the second fire outlet channel respectively to flow out, so that the flow speed of the fuel gas can be reduced, and the possibility of flame separation is reduced.

In a possible embodiment, the included angle between the first fire outlet channel and the second fire outlet channel is 30 degrees. Therefore, in the vertical direction, a proper distance is reserved between the first fire outlet hole and the second fire outlet hole, secondary air supplementing of the first fire outlet hole is not influenced by arrangement of the second fire outlet hole, the possibility that carbon monoxide is insufficiently generated in combustion is reduced, meanwhile, the root of the first fire outlet hole can be heated by the second fire outlet hole, flame is stabilized, and the possibility of flame separation is reduced.

In a possible embodiment, the second fire outlet channel is parallel to the horizontal plane, and the included angle between the second fire outlet channel and the horizontal plane is 30 degrees. The arrangement of the second fire outlet hole and the second fire outlet channel is beneficial to production and manufacturing, and production efficiency is improved.

In a possible embodiment, the first fire hole has a larger aperture than the second fire hole in communication therewith. Thus, the first fire hole is used as a main fire hole, a relatively large flame is formed, and the second fire hole is used as a secondary fire hole. The second fire hole not only shunts partial fuel gas of the first fire hole and reduces the fuel gas flow rate of the main fire hole, but also can heat the root of the first fire hole and stabilize flame.

In a possible embodiment, the gas burner further comprises a pressure stabilizing hole located between two adjacent second fire outlets, the pressure stabilizing hole is used for stabilizing flame formed by the gas flowing out of the first fire outlet, and the distance from the second fire outlet to the first fire outlet is smaller than the distance from the pressure stabilizing hole to the first fire outlet. Therefore, the pressure stabilizing hole can stabilize the flame formed by the fuel gas flowing out of the first flame outlet hole, and the second flame outlet hole can reduce the flow velocity of the first flame outlet hole, so that the possibility of flame separation is reduced, and the combustion efficiency is improved.

In a possible embodiment, the aperture of the second fire hole is smaller than the aperture of the pressure stabilizing hole. Therefore, the second fire outlet hole has smaller aperture, so that the second fire outlet hole does not influence secondary air supplementing of the first fire outlet hole while reducing the gas flow rate of the first fire outlet hole.

In a possible embodiment, the fire cover is an inner ring fire cover or an outer ring fire cover.

Another aspect of the embodiments of the utility model relates to a burner for a gas range, the burner comprising a fire cover as described above.

In a possible embodiment, the fire cover further comprises a fire cover base, the fire cover is detachably arranged on the fire cover base in a covering mode, the concave portion is matched with the fire cover base to form a gas mixing cavity, and fuel gas in the gas mixing cavity flows through the first fire outlet channel and the second fire outlet channel and then flows out through the first fire outlet hole and the second fire outlet hole.

Yet another aspect of the embodiments of the present utility model relates to a burner for a gas range, including a burner as described above, and further including a burner base, on which the burner is detachably placed.

[ description of the drawings ]

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model. Wherein, the liquid crystal display device comprises a liquid crystal display device,

FIG. 1 is a schematic perspective view of a fire cover according to one embodiment of the utility model;

FIG. 2 is a cross-sectional view of a fire cover according to one embodiment of the utility model;

fig. 3 is an enlarged view of fig. 2 at a;

FIG. 4 is a schematic perspective view of a burner according to one embodiment of the utility model;

FIG. 5 is a cross-sectional view of a burner of one embodiment of the present utility model;

FIG. 6 is a schematic perspective view of a burner according to one embodiment of the utility model;

FIG. 7 is a schematic partial cross-sectional view of a combustor according to one embodiment of the utility model;

reference numerals:

burner 1 fire cover 10 fire cover base 20 burner 30

Recess 103 of sidewall 102 of cover 101 of burner base 40

First wall 106 of first fire hole 104 second fire hole 105

First fire channel 107 second fire channel 108 first air inlet hole 109 second air inlet hole 110

Outer ring injection pipe 114 of inner ring injection pipe 113 of gas mixing chamber 112 of pressure stabilizing hole 111

[ detailed description ] of the utility model

For a further understanding of the objects, construction, features, and functions of the utility model, reference should be made to the following detailed description of the preferred embodiments.

First, a fire cover 10 of a burner 1 for a gas range is described, as shown in fig. 1 to 3, the fire cover 10 includes a cover body 101 and a side wall 102 surrounding the cover body 101, a recess 103 for containing gas is defined between the cover body 101 and the side wall 102, and an opening of the recess 103 faces downward.

The side wall 102 is provided with a plurality of first fire outlets 104 and second fire outlets 105 for the fuel gas to flow out, and the first fire outlets 104 and the second fire outlets 105 are distributed on the side wall 102 at intervals along the circumferential direction. The first and second flame-out holes 104 and 105 are both communicated with the recess 103, and the fuel gas of the recess 103 can flow out through the first and second flame-out holes 104 and 105 and form flames.

The fire cover 10 may further include a first fire outlet passage 107 and a second fire outlet passage 108, the first fire outlet hole 104 communicating with the recess 103 through the first fire outlet passage 107, and the second fire outlet passage 108 communicating with the recess 103 through the second fire outlet passage 108.

The first fire outlet holes 104 and the second fire outlet holes 105 are respectively located on the outer surface of the side wall 102 far away from the concave part 103, namely, the first fire outlet holes 104 are located at one end of the first fire outlet channel 107 far away from the concave part 103, and the fuel gas entering the first fire outlet channel 107 can flow out through the first fire outlet holes 104 and form flames. The second fire outlet 105 is located at an end of the second fire outlet channel 108 away from the recess 103, and the fuel gas entering the second fire outlet channel 108 can flow out through the second fire outlet 105 and form a flame.

Wherein the first fire outlet channel 107 and the second fire outlet channel 108 are communicated. The gas of first fire passageway 107 can get into second fire passageway 108, and second fire passageway 108 can shunt the gas of part entering first fire passageway 107, reduces the gas velocity of flow of first fire hole 104 for the burning is more abundant, reduces the possibility of leaving the flame, improves combustion efficiency.

The fuel gas entering the first fire outlet channel 107 can flow out through the first fire outlet hole 104 and the second fire outlet hole 105, which increases the total area of the fire outlet holes compared with only one fire outlet hole, thereby being beneficial to reducing the flow rate of the fuel gas of the fire outlet holes and enabling the first fire outlet hole 104 to fully supplement secondary air.

The first fire hole 104 has a larger aperture than the second fire hole 105, the first fire hole 104 being configured as a primary fire hole and the second fire hole 105 being configured as a secondary fire hole. The total area of the first fire holes 104 is larger than the total area of the second fire holes 105. The flame formed by the gas flowing out of the first flame outlet holes 104 is larger than the flame formed by the gas flowing out of the second flame outlet holes 105. The flames burned by the first flame holes 104 constitute a main flame of the fire cover 10, and the flames burned by the second flame holes 105 constitute an auxiliary flame of the fire cover 10.

The arrangement of the second fire outlet 105 increases the total area of the fire outlet, the second fire outlet 105 can split the fuel gas of the first fire outlet 104, reduce the flow rate of the fuel gas, reduce the possibility of flame separation, burn more fully and reduce the emission of carbon monoxide.

As shown in fig. 2 and 3, the second fire hole 105 is provided below the first fire hole 104. In the present embodiment, the second fire hole 105 is provided directly below the first fire hole 104. In the vertical direction, the first fire hole 104 and the second fire hole 105 are on the same vertical line. Compared with the arrangement of the first fire outlet hole 104 and the second fire outlet hole 105 in the same circumferential direction, the arrangement of the second fire outlet hole 105 under the first fire outlet hole 104 is convenient for the production and manufacture of the second fire outlet hole 105, the process is simple, the improvement of production efficiency is facilitated, and meanwhile, the arrangement of the second fire outlet hole 105 does not influence the supplement of secondary air of the first fire outlet hole 104, so that the combustion of fuel gas is sufficient, and the emission of carbon monoxide is further reduced.

As shown, the first fire outlet channel 107 and the second fire outlet channel 108 extend along straight lines, respectively, and the vertical projection of the first fire outlet channel 107 and the vertical projection of the second fire outlet channel 108 are on the same straight line, that is, the projections of the first fire outlet channel 107 and the second fire outlet channel 108 on the horizontal plane are on the same straight line. This is advantageous in that the second flame out channel 108 may split at least part of the fuel gas of the first flame out channel 107.

The first and second flame-out passages 107 and 108 are different in extending direction. The extending directions of the first fire escape 107 and the second fire escape 108 have an intersection. In one embodiment, the intersection of the first and second fireexit channels 107, 108 is located on the inner surface of the sidewall 102 facing the recess 103.

The first and second fire-out channels 107, 108 are at different angles to the horizontal.

The first flame-out path 107 extends in a horizontal direction from the inner surface of the side wall 102, and the second flame-out path 108 extends obliquely upward from the inner surface of the side wall 102. The included angle between the first fire-out channel 107 and the second fire-out channel 108 is 30 degrees. In one embodiment, the second fireexit passage 108 is parallel to the horizontal plane, and the first fireexit passage 107 is at an angle of 30 degrees to the horizontal plane. It will be appreciated that in other embodiments, other angles may be said between the first and second fire exit channels 107, 108.

As shown, the first fire-out channel 107 has a first wall 106, the first wall 106 surrounding the first fire-out channel 107. The second fire-discharging passage 108 extends outwardly from the first wall 106, and the second fire-discharging passage 108 extends outwardly from any point along the first wall 106, which allows the fuel gas introduced into the first fire-discharging passage 107 to flow not only through the first fire-discharging hole 104 but also through the second fire-discharging passage 108 and out through the second fire-discharging hole 105, so that the second fire-discharging passage 108 can branch off part of the fuel gas of the first fire-discharging passage 107.

The end of the second fire outlet channel 108, which is close to the concave part 103, is provided with a second air inlet hole 110, and fuel gas enters the second fire outlet channel 108 through the second air inlet hole 110 and then flows out through the second fire outlet hole 105 to form main flame. The second air inlet 110 is located on the first wall 106, and after the fuel gas in the recess 103 enters the first fire outlet channel 107, at least part of the fuel gas enters the second fire outlet channel 108 through the second air inlet 110, and then flows out through the second fire outlet 105 to form auxiliary flame.

As shown in the figure, a first air inlet hole 109 is formed at one end of the second fire outlet channel 108, which is close to the recess 103, and the fuel gas in the recess 103 enters the first fire outlet channel 107 and the second fire outlet channel 108 after passing through the first air inlet hole 109, and then flows out through the first fire outlet hole 104 and the second fire outlet hole 105. Specifically, after the fuel gas enters the first fire outlet channel 107 through the first air inlet hole 109, a part of the fuel gas flows out through the first fire outlet hole 104, and a part of the fuel gas enters the first fire outlet channel 107 and flows out through the second fire outlet hole 105.

In one embodiment, the intersection of the first and second fire-out passages 107, 108 is located at the first air intake aperture 109. In this embodiment, the first air inlet aperture 109 and the second air inlet aperture 110 coincide.

As shown, the fire cover 10 further includes a flame stabilizing hole 111 between two adjacent second fire outlets 105, and the flame stabilizing hole 111 is used to stabilize the flame formed by the fuel gas flowing out from the first fire outlet 104. The flame stabilizing hole 111 is communicated with the concave part 103, and the fuel gas of the concave part 103 can flow out through the flame stabilizing hole 111 to form flame for heating the root of the first flame outlet 104, so that the possibility of flame separation of the first flame outlet 104 is reduced, and the combustion efficiency is improved.

In the present embodiment, the voltage stabilizing holes 111 are located below the first flame holes 104, and the voltage stabilizing holes 111 and the second flame holes 105 are located on the same circumference, and the voltage stabilizing holes 111 and the second flame holes 105 are alternately distributed at intervals on the same circumference of the side wall 102.

The second fire hole 105 is located directly under the first fire hole 104, the pressure stabilizing hole 111 is located obliquely under the first fire hole 104, the distance from the second fire hole 105 to the first fire hole 104 is smaller than the distance from the pressure stabilizing hole 111 to the first fire hole 104, and the aperture of the second fire hole 105 is smaller than the aperture of the pressure stabilizing hole 111. Therefore, the gas of the first fire outlet channel 107 is favorably split by the second fire outlet hole 105, so that the flow speed of the first fire outlet channel 107 is reduced, and on the other hand, the flame stabilizing holes 111 can heat the root parts of the first fire outlet holes 104, so that the possibility of flame leaving the first fire outlet holes 104 is reduced, and the combustion is more uniform.

The fire cover 10 may be an inner ring fire cover or an outer ring fire cover.

As shown in fig. 4 and 5, there is also shown a burner 30 of the burner 1 for a gas range, the burner 30 including a burner cover base 20 and a burner cover 10, the burner cover 10 being detachably provided on the burner cover base 20. The fire cover 10 may be the fire cover 10 described in the previous embodiments.

When the fire cover 10 is covered on the fire cover base 20, the concave portion 103 and the fire cover 20 base cooperate to form a gas mixing cavity 112, and the gas in the gas mixing cavity 112 flows through the first fire outlet channel 107 and the second fire outlet channel 108 and then flows out through the first fire outlet hole 104 and the second fire outlet hole 105 to form flame.

As shown in fig. 6 and 7, the present utility model also provides a burner 1 for a gas range, which may include a burner 30 and a burner base 40 according to any of the embodiments described above, wherein the burner 30 is detachably disposed on the burner base 40.

The burner 1 further comprises an inner ring injection system and an outer ring injection system. The inner ring injection system comprises an inner ring gas nozzle, an inner ring injection pipe 113 connected with the inner ring gas nozzle and an inner ring pressure stabilizing cavity connected with the inner ring injection pipe. The outer ring injection system comprises an outer ring gas nozzle, an outer ring injection pipe 114 connected with the outer ring gas nozzle, and an outer ring pressure stabilizing cavity connected with the outer ring injection pipe. In this embodiment, the inner ring plenum 111 communicates with the mixing chamber 112.

The fuel gas enters the inner ring pressure stabilizing cavity 111 after passing through the inner ring injection pipe, the air flow entering the inner ring pressure stabilizing cavity enters the air mixing cavity 112, then flows through the first fire outlet channel 107 and flows out through the first fire outlet holes 104 to form flame, and meanwhile, part of the fuel gas flows through the second fire outlet channel 108 and flows out through the second fire outlet holes 105 to form flame.

Finally, the utility model also provides a gas stove comprising the burner 1 for a gas stove according to any one of the embodiments above.

The various embodiments described in connection with fig. 1-7 may be combined with each other in any given manner to achieve the advantages of the present utility model. The present utility model is not limited to the embodiments shown, and means other than those shown may be used in general as long as the same effects can be achieved.

Claims (15)

1. The utility model provides a fire lid (10) of combustor (1) for gas-cooker, includes lid (101) and encircles lateral wall (102) of lid (101), lid (101) with lateral wall (102) are limited one and are used for holding depressed part (103) of gas, characterized in that, be equipped with on lateral wall (102) and supply a plurality of first fire holes (104) that gas flows and be located second fire hole (105) of first fire hole (104) below, first fire hole (104) with second fire hole (105) all communicate with depressed part (103), first fire hole (104) pass through first fire passageway (107) with depressed part (103) intercommunication, second fire hole (105) pass through second fire passageway (108) with depressed part (103) intercommunication, and first fire passageway (107) are linked together with second fire passageway (108).

2. The burner (10) for gas range burner (1) according to claim 1, wherein the vertical projection of the first flame exit channel (107) is collinear with the vertical projection of the second flame exit channel (108).

3. The burner (10) for gas range burner (1) according to claim 1, further comprising a first wall (106) forming a first flame exit channel (107), said second flame exit channel (108) extending outwardly from the first wall (106), and said first flame exit channel (107) and said second flame exit channel (108) extending in different directions.

4. A fire cover (10) of a burner (1) for a gas range according to claim 3, further comprising a second air inlet hole (110) communicating the first fire outlet channel (107) and the second fire outlet channel (108), wherein the second air inlet hole (110) is located on the first wall (106), and after the gas in the recess (103) enters the first fire outlet channel (107), at least part of the gas enters the second fire outlet channel (108) through the second air inlet hole (110).

5. The burner (10) for gas range burner (1) according to claim 1, wherein the first and second flame-out channels (107, 108) are different in angle from the horizontal, and the intersection point of the first flame-out channel (107) and the second flame-out channel (108) is located on the inner surface of the side wall (102) facing the recess (103).

6. The fire cover (10) of the burner (1) for a gas range according to claim 5, further comprising a first air inlet hole (109) provided on an inner surface of the side wall (102), wherein the intersection point is located at the first air inlet hole (109), and the gas in the recess (103) enters the first fire outlet channel (107) and the second fire outlet channel (108) after passing through the first air inlet hole (109) and flows out through the first fire outlet hole (104) and the second fire outlet hole (105).

7. The burner (10) for gas range burner (1) according to claim 1, wherein the angle between the first flame exit channel (107) and the second flame exit channel (108) is 30 degrees.

8. The burner (10) for gas range burner (1) according to claim 7, wherein the second flame exit channel (108) is parallel to the horizontal plane and the first flame exit channel (107) forms an angle of 30 degrees with the horizontal plane.

9. The burner (10) for gas range burner (1) according to claim 1, wherein the first fire hole (104) has a larger aperture than the second fire hole (105) communicating therewith.

10. The burner (10) for gas range burner (1) according to claim 1, further comprising a stabilizing hole (111) located between two adjacent second flame-out holes (105), said stabilizing hole (111) being configured to stabilize a flame formed by the gas flowing out from said first flame-out hole (104), a distance from said second flame-out hole (105) to said first flame-out hole (104) being smaller than a distance from said stabilizing hole (111) to said first flame-out hole (104).

11. The burner (10) for gas range burner (1) according to claim 10, wherein the second flame exit hole (105) has a smaller diameter than the pressure stabilizing hole (111).

12. The fire cover (10) of a burner (1) for a gas range according to claim 1, wherein the fire cover (10) is an inner ring fire cover (10) or an outer ring fire cover (10).

13. Burner (30) of a burner (1) for gas ranges, characterized by comprising a fire cover (10) according to any one of claims 1-2.

14. The burner (30) of a burner (1) for a gas range according to claim 13, further comprising a fire cover base (20), wherein the fire cover (10) is detachably covered on the fire cover base (20), the recess (103) is matched with the fire cover base (20) to form a gas mixing chamber (112), and the gas in the gas mixing chamber (112) flows through the first fire outlet channel (107) and the second fire outlet channel (108) and then flows out through the first fire outlet hole (104) and the second fire outlet hole (105).

15. Burner (1) for a gas range, characterized by comprising a burner (30) according to claim 13 or 14, further comprising a burner base (40), said burner (30) being removably placed on said burner base (40).