CN219571921U - Distributor and combustor - Google Patents

Abstract

The utility model discloses a distributor, which comprises a distributor body and a plurality of fire covers. The distributor body is internally provided with a fuel gas channel. The fire cover is provided with a fire hole group and a first air passage, the fire hole group comprises a plurality of fire holes communicated with the gas passage, the first air passage and the gas passage are mutually independent, one end of the first air passage penetrates through the top wall of the fire distributor body, the other end penetrates through the side wall or the bottom wall of the fire distributor body, and all the fire holes of each fire cover are circumferentially arranged around the first air passage. Thus, the first air passage can provide independent air passages for the fuel gas flowing to the fire hole group, and air is provided for the fuel gas at the fire hole group independently, so that the fuel gas flowing out from each fire hole of the fire hole group can be fully combusted. In addition, the utility model also discloses a combustor with the distributor.

Description

Distributor and combustor

Technical Field

The utility model relates to the technical field of gas cookers, in particular to a distributor and a combustor.

Background

The existing burner is more sufficient for the combustion of fuel gas, and usually needs external secondary air supplement, and a secondary air channel is generally arranged between an inner ring fire cover and an outer ring fire cover, however, in the structure, secondary air of the secondary air channel cannot be effectively distributed to each fire hole, so that insufficient combustion of fuel gas is easily caused, more harmful gas is generated, and the heat efficiency of the burner is influenced.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the distributor which can provide independent air passages for the fire holes so that the fuel gas can be fully combusted.

The utility model also provides a burner with the distributor.

According to an embodiment of the utility model, a distributor includes:

the distributor comprises a distributor body, wherein a fuel gas channel is formed in the distributor body;

the fire cover is provided with a fire hole group and a first air passage, the fire hole group comprises a plurality of fire holes communicated with the gas passage, the first air passage is mutually independent with the gas passage, one end of the first air passage penetrates through the top wall of the fire distributor body, the other end of the first air passage penetrates through the side wall or the bottom wall of the fire distributor body, and all fire holes of the fire cover are all arranged around the circumference of the first air passage.

The distributor provided by the embodiment of the utility model has at least the following beneficial effects:

through set up first air passage and fire hole group at the fire lid, first air passage one end runs through the roof of distributor body, and the other end runs through the lateral wall or the diapire of distributor body, and the fire hole group includes a plurality of fire holes that are linked together with the gas passageway, from this, gas can flow to each fire hole of fire hole group from the gas passageway, and first air passage then provides independent air passage for the gas that flows to the fire hole group, provides the air for the gas of fire hole group department alone for the gas that flows from each fire hole of fire hole group can fully burn.

According to some embodiments of the utility model, the top of the fire cover is provided with an extension arranged around the outer periphery of the upper end of the first air passage, and the fire hole group is provided in the extension.

According to some embodiments of the utility model, the extension is raised upwardly relative to a top wall of the distributor body.

According to some embodiments of the utility model, the bottom wall of the distributor body is provided with first mounting holes corresponding to all the first air channels one by one, the top wall of the distributor body is provided with second mounting holes corresponding to all the extending parts one by one, the first air channels penetrate through the first mounting holes and extend to the second mounting holes, and the extending parts are connected with the periphery of the second mounting holes.

According to some embodiments of the utility model, the gas passages include an inner ring gas passage and an outer ring gas passage that are independent of each other, the fire hole of at least one of the fire covers being in communication with the outer ring gas passage, and/or the fire hole of at least one of the fire covers being in communication with the inner ring gas passage.

According to some embodiments of the utility model, at least one second air passage extending through the distributor body is provided between the inner and outer annular gas passages.

According to some embodiments of the utility model, the distributor body comprises a base and a cover body, the cover body is covered on the base and mutually surrounds the base to form the outer ring gas channel, the fire cover is an outer ring fire cover arranged at the outer ring gas channel, and the fire hole is an outer ring fire hole communicated with the outer ring gas channel; the upper cover of lid is equipped with inner ring fire lid, inner ring fire lid with the lid encloses each other and closes and form inner ring gas passageway, inner ring fire lid has seted up at least one set of inner ring fire hole group, inner ring fire hole group includes a plurality of intercommunication inner ring fire holes of inner ring gas passageway.

According to some embodiments of the utility model, the inner ring fire holes of at least one of the inner ring fire hole groups are open at a side wall of the inner ring fire cover near the second air passage.

According to an embodiment of the utility model, a burner is provided with a distributor according to any of the embodiments described above.

The burner provided by the embodiment of the utility model has at least the following beneficial effects:

through setting up the distributor of any one of the above-mentioned embodiments, the fire lid of this distributor is provided with the first air passage that separates with the gas passageway and with the fire hole group that the gas passageway is linked together, first air passage can provide independent air passage for the gas that flows to the fire hole group, provides the air for the gas of fire hole group department alone for the gas that flows from each fire hole of fire hole group can fully burn, and then can improve the thermal efficiency of combustor.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of an distributor according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of the distributor shown in FIG. 1;

FIG. 3 is another cross-sectional schematic view of the distributor shown in FIG. 1;

FIG. 4 is an exploded schematic view of the distributor shown in FIG. 1;

FIG. 5 is a schematic view of a fire cover according to an embodiment of the utility model;

FIG. 6 is a schematic cross-sectional view of the fire cover shown in FIG. 5;

FIG. 7 is a schematic view of a base according to an embodiment of the present utility model;

FIG. 8 is a schematic view of a cover according to an embodiment of the utility model;

FIG. 9 is a schematic view of an inner ring fire cover according to an embodiment of the utility model;

FIG. 10 is a schematic cross-sectional view of the inner ring fire cover shown in FIG. 9;

FIG. 11 is another cross-sectional schematic view of the inner ring fire cover shown in FIG. 9;

FIG. 12 is a schematic view of a burner according to an embodiment of the present utility model;

fig. 13 is a schematic cross-sectional view of the burner shown in fig. 12.

Reference numerals:

the distributor body 100, the base 110, the first mounting hole 111, the cover 120, the second mounting hole 121, the inner ring gas channel 130, the inner ring gas channel 131, the outer ring gas channel 140, the outer ring gas channel 141, the second air channel 150;

a fire cover 200, a first air passage 210, a fire hole 220, and an extension 230;

an inner ring fire cover 300 and an inner ring fire hole 310;

the burner 400, the injection tube 410, the inner ring air outlet channel 420 and the outer ring air outlet channel 430.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 6, an embodiment of the present utility model proposes a distributor including a distributor body 100 and a plurality of fire covers 200. The distributor body 100 has a gas passage therein. The fire covers 200 are arranged on the distributor body 100 at intervals, each fire cover 200 is provided with a fire hole group and a first air channel 210, the fire hole group comprises a plurality of fire holes 220 communicated with the gas channel, the first air channels 210 are mutually independent from the gas channel, one end of each first air channel 210 penetrates through the top wall of the distributor body 100, the other end of each first air channel penetrates through the bottom wall of the distributor body 100, and all the fire holes 220 of each fire cover 200 are circumferentially arranged around the first air channel 210.

In the above-described structure, by providing the first air passage 210 independent of the gas passage and the fire hole group communicating with the gas passage at the fire cover 200, all the fire holes 220 of the fire hole group are arranged around the circumference of the first air passage 210, whereby the gas can flow from the gas passage to the respective fire holes 220 of the fire hole group, the first air passage 210 provides an independent air passage for the gas flowing to the fire hole group, and separately provides air for the gas at the fire hole group, so that the gas flowing out from the respective fire holes 220 of the fire hole group can be fully combusted, the combustion efficiency of the gas is improved, and the generation of harmful gas is reduced.

It should be understood that the first air passage 210 extends through the top wall of the distributor body 100 at one end and through the bottom wall of the distributor body 100 at the other end, and only one exemplary illustration is shown in fig. 1 to 13, but in addition, the first air passage 210 may extend through the top wall of the distributor body 100 at one end and through the side wall of the distributor body 100 at the other end, which is not particularly limited in the present utility model, only that the first air passage 210 and the gas passage are independent and both ends are communicated with the outside of the distributor body 100.

It is understood that all of the fire holes 220 of each fire cover 200 are arranged around the circumference of the first air passage 210, and in particular, all of the fire holes 220 of each fire cover 200 may be arranged at intervals around the circumference of the first air passage 210.

It should be understood that in fig. 1 to 6, each fire cover 200 is provided with a group of fire holes, which is only an exemplary illustration of fig. 1 to 13, and the fire holes provided by each fire cover 200 may be provided with two groups, three groups or more groups, but the number of fire holes provided by each fire cover 200 is not particularly limited, so long as it is ensured that all fire holes 220 of each fire hole group are circumferentially spaced around the first air passage 210. When the fire cover 200 is provided with two or more fire hole groups, the respective fire hole groups may be spaced apart from each other from inside to outside in the radial direction of the first air passage 210.

Referring to fig. 1 to 6, in some embodiments, the top of the fire cover 200 is provided with an extension 230 disposed around the outer circumference of the upper end of the first air passage 210, and the fire hole group is opened to the extension 230.

In the above-described structure, by providing the extension 230 at the outer circumference of the upper end of the first air passage 210, the opening of each fire hole 220 of the fire hole group can be facilitated, so that each fire hole 220 of the fire hole group can be arranged around the outer circumference of the first air passage 210, and further the first air passage 210 can provide air for the gas flowing to the fire hole group alone, and the air in the first air passage 210 can be effectively distributed to each fire hole 220 of the fire hole group, so that the gas flowing out from each fire hole 220 of the fire hole group can be fully combusted, the combustion efficiency of the gas is improved, and the generation of harmful gas is reduced.

Referring to fig. 1-6, in some embodiments, the extension 230 protrudes upward relative to the top wall of the distributor body 100.

In the above-described structure, since the gas is mixed with the primary air when being injected into the injection pipe 410 from the nozzle, the gas flows under the extension 230 after flowing into the gas passage, and then flows out through each fire hole 220 of the fire hole group, the volume of the gas passage can be increased by upwardly protruding the extension 230 with respect to the top wall of the distributor body 100, the flow path of the gas can be prolonged, the gas and the primary air can be mixed more uniformly, and the combustion efficiency of the gas can be improved.

It will be appreciated that the extension 230 is raised relative to the top wall of the distributor body 100, and is merely illustrative of the present utility model, and the extension 230 may be flush with the top wall of the distributor body 100, which is not particularly limited.

It will be appreciated that referring to fig. 1 to 6, the fire hole 220 may be provided as a bar-shaped hole, and in addition, the fire hole 220 may be provided as a circular hole, a kidney-shaped hole, a square hole, or other shaped holes, and the present utility model is not particularly limited with respect to the specific shape of the fire hole 220.

Referring to fig. 1 to 4, in some embodiments, the bottom wall of the distributor body 100 is provided with first mounting holes 111 corresponding to all the first air channels 210 one by one, the top wall of the distributor body 100 is provided with second mounting holes 121 corresponding to all the extension parts 230 one by one, the first air channels 210 are penetrated through the first mounting holes 111 and extend to the second mounting holes 121, and the extension parts 230 are connected with the peripheral edges of the second mounting holes 121.

In the above structure, the fire cover 200 is mounted in the first mounting hole 111 and the second mounting hole 121 by providing the first mounting hole 111 and the second mounting hole 121, that is, the fire cover 200 and the fire distributor body 100 are set to be independent structures, therefore, the fire distributor body 100 only needs to provide the first mounting hole 111 and the second mounting hole 121, and the fire cover 200 can be independently produced and processed, thereby being convenient for the production and processing of the fire distributor body 100 and the fire cover 200, and simultaneously being convenient for the installation and the disassembly of the fire distributor body 100 and the fire cover 200.

It is to be understood that the present utility model is not particularly limited, and the flame cover 200 and the distributor body 100 may be provided as an integral structure, in addition to the structure in which the flame cover 200 and the distributor body 100 are independent of each other.

Referring to fig. 1 to 4, in some embodiments, the gas passages include an inner ring gas passage 130 and an outer ring gas passage 140 that are independent of each other, and the fire hole 220 of at least one fire cover 200 communicates with the outer ring gas passage 140.

In the above structure, the gas in the outer ring gas passage 140 can flow to each fire hole 220 of the fire hole group, and the first air passage 210 of the fire cover 200 can provide an independent air passage for the gas flowing to the fire hole group, so that the gas flowing out of each fire hole 220 of the fire hole group can be fully combusted, that is, the gas in the outer ring gas passage 140 can be fully combusted, the combustion efficiency of the gas is improved, and the generation of harmful gas is reduced.

It is appreciated that in some embodiments, the gas passages include an inner ring gas passage 130 and an outer ring gas passage 140 that are independent of each other, and the fire holes 220 of at least one fire cover 200 are in communication with the inner ring gas passage 130.

In the above structure, the gas in the inner ring gas passage 130 can flow to each fire hole 220 of the fire hole group, and the first air passage 210 of the fire cover 200 can provide an independent air passage for the gas flowing to the fire hole group, so that the gas flowing out of each fire hole 220 of the fire hole group can be fully combusted, that is, the gas in the inner ring gas passage 130 can be fully combusted, the combustion efficiency of the gas is improved, and the generation of harmful gas is reduced.

It will be appreciated that in some embodiments, the gas passages include an inner ring gas passage 130 and an outer ring gas passage 140 that are independent of each other, with the fire holes 220 of at least one fire cover 200 in communication with the outer ring gas passage 140, and with the fire holes 220 of at least one fire cover 200 in communication with the inner ring gas passage 130. Thereby, the fuel gas of the inner ring fuel gas channel 130 and the outer ring fuel gas channel 140 can be fully combusted, so that the combustion efficiency of the fuel gas can be further improved, and the generation of harmful gas is reduced.

It will be appreciated that the gas passages described above, including the inner ring gas passage 130 and the outer ring gas passage 140, are independent of each other, and are merely illustrative of one example of fig. 1-4. When the burner is a three-ring burner, the gas passage further includes a middle ring gas passage, at least one fire cover 200 may be installed at the middle ring gas passage, and the fire hole 220 may be in communication with the middle ring gas passage.

Referring to fig. 1-4, in some embodiments, at least one second air passage 150 is provided through the distributor body 100 between the inner and outer annular gas passages 130, 140.

In the above structure, the secondary air passage is provided between the inner ring gas passage 130 and the outer ring gas passage 140, whereby the secondary air passage can provide secondary air for the gas flowing out of the inner ring gas passage 130 and the gas flowing out of the outer ring gas passage 140, further improving the combustion efficiency of the gas, and improving the thermal efficiency of the burner.

Referring to fig. 1 to 11, in some embodiments, the distributor body 100 includes a base 110 and a cover 120, the cover 120 covers the base 110 and encloses the base 110 with each other to form an outer ring gas channel 140, the fire cover 200 is an outer ring fire cover disposed at the outer ring gas channel 140, and the fire holes 220 are outer ring fire holes communicating with the outer ring gas channel 140; the upper cover of the cover body 120 is provided with an inner ring fire cover 300, the inner ring fire cover 300 and the cover body 120 are mutually enclosed to form an inner ring gas channel 130, the inner ring fire cover 300 is provided with at least one inner ring fire hole group, and the inner ring fire hole group comprises a plurality of inner ring fire holes 310 communicated with the inner ring gas channel 130.

In the above-described structure, the distributor body 100 is formed by providing the distributor body 100 as the base 110 and the cover 120 independent of each other, and the cover 120 is covered on the base 110 to form the distributor body 100, thereby facilitating the production and processing of the distributor body 100 and improving the production efficiency of the distributor body 100. Next, the fire cover 200 is provided as an outer ring fire cover at the outer ring gas passage 140, whereby the thermal efficiency of the outer ring fire can be improved. In addition, through cover the lid body 120 top and establish inner ring fire lid 300, inner ring fire lid 300 encloses each other with lid body 120 and closes and form inner ring gas passageway 130, and inner ring fire lid 300 has seted up three group's inner ring fire hole group, and inner ring fire hole group includes the inner ring fire hole 310 of a plurality of intercommunication inner ring gas passageway 130, makes the gas in the inner ring gas passageway 130 can flow to inner ring fire hole 310 department and burns from this.

It is understood that the inner ring fire hole 310 may be a bar hole, a circular hole, a kidney hole, a square hole or a hole structure with other shapes, which is not particularly limited in this utility model.

It should be understood that the above-mentioned arrangement of three sets of inner ring fire hole sets in the inner ring fire cover 300 is merely an exemplary illustration of fig. 1 to 11, and the number of the inner ring fire hole sets in the inner ring fire cover 300 may be three, or may be one, two, four or more, which is not particularly limited.

It is to be understood that the cover 120 is covered on the base 110, specifically, the cover 120 and the base 110 may be clamped, or may be connected by threads or other connection methods, which is not limited in particular.

Referring to fig. 1 to 11, in some embodiments, the inner ring fire holes 310 of the two inner ring fire hole groups are formed at a side wall of the inner ring fire cover 300 near the second air passage 150.

In the above structure, the inner ring fire hole 310 is formed in the side wall of the inner ring fire cover 300, which is close to the second air channel 150, so that air in the second air channel 150 can flow to the inner ring fire hole 310 conveniently, so that fuel gas at the inner ring fire hole 310 can be fully combusted, and the thermal efficiency of the inner ring fire is improved.

It can be understood that the two inner ring fire hole groups are arranged on one side wall of the inner ring fire cover 300, which is close to the second air channel 150, along the up-down direction at intervals, the inner ring fire hole 310 of the inner ring fire hole group located above can be used as a main fire control, and the inner ring fire hole 310 of the inner ring fire hole group located below can be used as a fire stabilizing hole 220, so as to play a role in stabilizing flame.

It should be understood that the two sets of inner ring fire holes 310 are formed on one side wall of the inner ring fire cover 300 near the second air channel 150, and only one exemplary illustration of fig. 1 to 11 is provided, and the number of the sets of inner ring fire holes formed on one side wall of the inner ring fire cover 300 near the second air channel 150 may be two, one, three, or more, which is not a specific limitation of the present utility model.

Referring to fig. 12 and 13, the present utility model also proposes a burner provided with an distributor according to any one of the embodiments described above.

In the above-described structure, by providing the fire distributor according to any one of the above-described embodiments, the fire cover 200 of the fire distributor is provided with the first air passage 210 separated from the gas passage and the fire hole group communicated with the gas passage, the first air passage 210 can provide an independent air passage for the gas flowing to the fire hole group, and separately provide air for the gas at the fire hole group, so that the gas flowing out from each fire hole 220 of the fire hole group can be sufficiently combusted, and further the thermal efficiency of the burner can be improved.

The burner of the present utility model will be described in detail with reference to the following examples.

Referring to fig. 1 to 13, the burner includes a distributor and a burner 400, the distributor includes a distributor body 100, the distributor body 100 includes a base 110 and a cover 120, the cover 120 covers the base 110 and encloses with the base 110 to form an outer ring air inlet channel 141 and an outer ring gas channel 140 which are mutually communicated, eight fire covers 200 are spaced apart from the outer ring gas channel 140, the fire covers 200 are outer ring fire covers, each fire cover 200 is provided with a first air channel 210 separated from the outer ring gas channel 140 and a fire hole group communicated with the outer ring gas channel 140, the first air channel 210 penetrates the distributor body 100 in an up-down direction, an extension 230 extending outwards is arranged at an outer periphery of an upper end of the first air channel 210, the extension 230 protrudes upwards relative to a top wall of the distributor body 100, and all fire holes 220 are opened at the extension 230 and are communicated with the outer ring gas channel 140. The base 110 is provided with first mounting holes 111 corresponding to all the first air channels 210 one by one, the cover 120 is provided with second mounting holes 121 corresponding to all the extension parts 230 one by one, the first air channels 210 penetrate through the first mounting holes 111 and extend to the second mounting holes 121, and the extension parts 230 are connected with the periphery of the second mounting holes 121. The cover 120 is provided with an inner ring air inlet channel 131, an inner ring fire cover 300 is arranged on the cover 120, the inner ring fire cover 300 and the cover 120 are mutually enclosed to form an inner ring gas channel 130 communicated with the inner ring air inlet channel 131, the inner ring fire cover 300 is provided with three groups of inner ring fire hole groups, and each inner ring fire hole group comprises a plurality of inner ring fire holes 310 communicated with the inner ring gas channel 130. Four second air passages 150 are provided between the inner and outer annular gas passages 130 and 140 through the distributor body 100. Wherein, the inner ring fire holes 310 of the two inner ring fire hole groups are formed on one side wall of the inner ring fire cover 300 close to the second air channel 150, and the inner ring fire holes 310 of one inner ring fire hole group are formed on the top wall of the inner ring fire cover 300.

The burner 400 is provided with two injection pipes 410, one of which is an inner ring injection pipe and the other of which is an outer ring injection pipe, and the burner 400 is also provided with an inner ring air outlet channel 420 which is mutually communicated with the inner ring injection pipe and an outer ring air outlet channel 430 which is mutually communicated with the outer ring injection pipe. The base 110 of the distributor body 100 is mounted to the burner 400 such that the inner ring outlet channel 420 communicates with the inner ring inlet channel 131 and the outer ring outlet channel 430 communicates with the outer ring inlet channel 141.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (9)

1. The distributor, its characterized in that includes:

a distributor body (100), wherein a gas channel is arranged in the distributor body (100);

the fire distributor comprises a distributor body (100), a plurality of fire covers (200) arranged at intervals, wherein each fire cover (200) is provided with a fire hole group and a first air channel (210), each fire hole group comprises a plurality of fire holes (220) communicated with a gas channel, the first air channels (210) are mutually independent with the gas channels, one end of each first air channel (210) penetrates through the top wall of the distributor body (100), the other end of each first air channel penetrates through the side wall or the bottom wall of the distributor body (100), and all fire holes (220) of each fire cover (200) are circumferentially arranged around the first air channels (210).

2. The fire distributor according to claim 1, wherein the top of the fire cover (200) is provided with an extension (230) arranged around the outer periphery of the upper end of the first air channel (210), and the fire hole group is provided in the extension (230).

3. The distributor according to claim 2, wherein the extension (230) protrudes upwards with respect to a top wall of the distributor body (100).

4. The distributor according to claim 2, wherein the bottom wall of the distributor body (100) is provided with first mounting holes (111) corresponding to all the first air channels (210) one by one, the top wall of the distributor body (100) is provided with second mounting holes (121) corresponding to all the extension parts (230) one by one, the first air channels (210) penetrate through the first mounting holes (111) and extend to the second mounting holes (121), and the extension parts (230) are connected with the periphery of the second mounting holes (121).

5. The distributor according to claim 1, wherein the gas channels comprise an inner ring gas channel (130) and an outer ring gas channel (140) independent of each other,

the fire holes (220) of at least one of the fire covers (200) are in communication with the outer ring gas channel (140) and/or the fire holes (220) of at least one of the fire covers (200) are in communication with the inner ring gas channel (130).

6. The distributor according to claim 5, wherein at least one second air channel (150) extending through the distributor body (100) is provided between the inner annular gas channel (130) and the outer annular gas channel (140).

7. The distributor according to claim 6, wherein the distributor body (100) comprises a base (110) and a cover (120),

the cover body (120) is covered on the base (110) and is mutually enclosed with the base (110) to form the outer ring gas channel (140), the fire cover is an outer ring fire cover arranged at the outer ring gas channel (140), and the fire hole (220) is an outer ring fire hole communicated with the outer ring gas channel (140);

the upper cover of lid (120) is equipped with inner ring fire lid (300), inner ring fire lid (300) with lid (120) enclose each other and form inner ring gas passageway (130), inner ring fire lid (300) has seted up at least one set of inner ring fire hole group, inner ring fire hole group includes a plurality of intercommunication inner ring fire hole (310) of inner ring gas passageway (130).

8. The distributor according to claim 7, wherein the inner ring fire holes (310) of at least one of the inner ring fire hole groups are open in a side wall of the inner ring fire cover (300) adjacent to the second air channel (150).

9. Burner, characterized in that a distributor according to any of claims 1 to 8 is provided.