CN119245027A - Gas distribution plate for burner, burner and gas stove - Google Patents

Abstract

The present application relates to the technical field of gas stoves, and discloses a gas distribution plate for a burner, a burner, and a gas stove. The gas distribution plate is constructed with a gas mixing chamber and a secondary air groove. The number of gas mixing chambers is multiple, and the multiple gas mixing chambers are arranged in sequence from the outside to the inside, wherein the secondary air groove is located between adjacent gas mixing chambers, the secondary air groove protrudes from the gas mixing chamber in the height direction, and the secondary air groove is provided with a secondary air hole. A secondary air groove is provided between adjacent gas mixing chambers, the secondary air groove protrudes from the gas mixing chamber in height, and a secondary air hole is provided in the secondary air groove, so that the material used at the secondary air groove is increased, thereby increasing the overall strength of the gas distribution plate, being able to prevent the gas distribution plate from being deformed by the high temperature during combustion, and ensuring the performance of the gas distribution plate.

Description

Gas distribution disc for burner, burner and gas stove

Technical Field

The application relates to the technical field of gas cookers, in particular to a gas distribution plate for a burner, the burner and a gas cooker.

Background

At present, the conventional gas stove has uneven impact heat transfer intensity and influence range of flames and the wall surface of the cooker due to scattered fire hole distribution, so that the heating effect of the gas stove is affected.

The burner in the related art realizes comparatively even heating through interior, well, outer ring fire lid to the accessible changes the thermal power size and realizes the regulation to each fire dish heat load, and generally sets up the secondary air passageway between the adjacent fire lid, and the secondary air passageway provides the secondary air for the fire hole burning of fire lid, in order to guarantee the burning sufficiency of multi-ring fire lid.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

In the related art, an annular secondary air channel is generally arranged between two adjacent air mixing cavities, and the two adjacent air mixing cavities are connected through radial connecting ribs, so that the strength of the air distribution disc is low, and the air distribution disc is easy to deform during high-temperature combustion.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.

The embodiment of the disclosure provides a divide gas dish, combustor and gas-cooker for combustor to improve the intensity of dividing the gas dish, prevent to divide the gas dish to take place high temperature deformation when burning.

The embodiment of the disclosure provides a divide gas dish for combustor, divide the gas dish to construct and have mixed air chamber and secondary air groove, and the quantity of mixed air chamber is a plurality of, and a plurality of mixed air chamber are along the direction interval setting in proper order from outside to interior, and wherein, secondary air groove is located between the adjacent mixed air chamber, and secondary air groove protrusion in mixed air chamber in the direction of height, and secondary air hole has been seted up to secondary air groove.

Optionally, the number of the secondary air holes is plural, and the plural secondary air holes are sequentially arranged at intervals along the circumferential direction of the secondary air slot.

Optionally, the secondary air holes are round, and/or the secondary air holes are sequentially and uniformly arranged at intervals along the circumferential direction of the fire cover.

Optionally, an air inlet hole is formed in the bottom of the mixing cavity, and the air inlet hole is suitable for enabling fuel gas to enter the mixing cavity.

Optionally, the burner comprises a fire cover, wherein the fire cover is suitable for being arranged above the air mixing cavity, the air distribution plate comprises an air distribution plate body, an air mixing cavity and a secondary air groove, and a protective edge, wherein the protective edge is arranged on the outer side of the air distribution plate body and extends annularly along the circumferential direction of the air distribution plate body, and when the fire cover is arranged above the air mixing cavity, the protective edge protrudes out of the outermost fire cover.

Embodiments of the present disclosure also provide a burner comprising a gas distribution plate for a burner as described in any of the embodiments above.

Optionally, the burner further comprises a fire cover which is arranged above the gas distribution plate and covers the gas mixing cavity, wherein a fire hole is formed in the fire cover, a first step part is formed in the lower end part of at least one side wall of the fire cover, a second step part is formed in the upper end part of at least one side wall of the gas mixing cavity, and when the fire cover is arranged above the gas mixing cavity, the first step part and the second step part are buckled to seal the fire cover and the gas mixing cavity.

Optionally, the fire hole runs through the roof and the lateral wall of fire lid along the radial of fire lid, and the fire hole is linked together with the secondary air hole, and the quantity of fire lid is a plurality of, and a plurality of fire lids are along inside-out direction interval setting in proper order, and the secondary air hole is located between the adjacent fire lid, and the quantity of secondary air hole is the same and the one-to-one with the fire hole of adjacent at least one fire lid.

The burner comprises a burner body, a first ejector, a second ejector, a pipeline, a first ejector and a second ejector, wherein the burner body is provided with a gas inlet, the gas inlet is provided with a gas outlet, the gas outlet is communicated with the gas inlet, the gas inlet is communicated with the second ejector, the number of the second ejectors is the same as that of the gas inlet, the first ejectors are in one-to-one correspondence, the pipeline is communicated between the gas outlet of the first ejector and the gas inlet, and the number of the pipeline is the same as that of the gas inlet and in one-to-one correspondence.

The disclosed embodiments also provide a gas stove comprising a burner as described in any of the above embodiments.

The embodiment of the disclosure provides a divide gas dish, combustor and gas-cooker for combustor, can realize following technical effect:

The gas distribution plate is structured to form a gas mixing cavity, the gas mixing cavity is used for providing fuel gas with the fire cover, a secondary air groove is arranged between adjacent gas mixing cavities, the secondary air groove protrudes out of the gas mixing cavity in height, and a secondary air hole is formed in the secondary air groove, so that the material consumption of the secondary air groove is increased, the overall strength of the gas distribution plate is further increased, the gas distribution plate is deformed due to high temperature during combustion can be prevented, and the performance of the gas distribution plate is guaranteed.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:

FIG. 1 is a schematic view of a partial structure of a gas range according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of a fire cover from one perspective provided by embodiments of the present disclosure;

FIG. 3 is a schematic view of a fire cover from another perspective provided in an embodiment of the present disclosure;

FIG. 4 is a schematic view of a gas distribution plate according to an embodiment of the present disclosure;

FIG. 5 is a schematic view of another view of a gas distribution plate according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of a structure of another view of a gas distribution plate provided by an embodiment of the present disclosure;

FIG. 7 is a schematic view in partial structural section of a combustor provided in an embodiment of the present disclosure;

FIG. 8 is a schematic view of a burner provided in an embodiment of the present disclosure;

FIG. 9 is a partial schematic view of a combustor provided in an embodiment of the present disclosure;

FIG. 10 is a schematic view of a tray according to an embodiment of the present disclosure;

FIG. 11 is a partial schematic view of a combustor provided in an embodiment of the present disclosure;

FIG. 12 is a partial schematic view of another combustor provided by an embodiment of the present disclosure.

Reference numerals:

10. Fire cover, 101, fire hole, 102, first step part, 103, central fire cover, 104, inner ring fire cover, 105, middle fire cover, 106, outer ring fire cover, 107, fourth fire cover, 20, gas distributing disc, 201, secondary air groove, 202, second step part, 203, secondary air hole, 204, mixing cavity, 2041, central mixing cavity, 2042, inner ring mixing cavity, 2043, middle mixing cavity, 2044, outer ring mixing cavity, 205, air inlet hole, 2051, first air inlet hole, 2052, second air inlet hole, 2053, third air inlet hole, 206, guard edge, 207, mixing cavity, 30, first injector, 40, pipeline, 401, second injector, 4011, outlet of second injector, 4012, third step part, 402, communication pipeline, 4021, air hole, 50, premixing cavity, 501, body, 502, cover body, 503, first premixing cavity, 504, second premixing cavity, 505, third premixing cavity, 60, liquid containing disc, and through hole.

Detailed Description

So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.

The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged where appropriate in order to describe the presently disclosed embodiments. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe embodiments of the present disclosure and embodiments thereof and are not intended to limit the indicated device, element, or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the embodiments of the present disclosure will be understood by those of ordinary skill in the art in view of the specific circumstances.

In addition, the terms "disposed," "connected," "secured" and "affixed" are to be construed broadly. For example, the term "coupled" may be a fixed connection, a removable connection, or a unitary construction, may be a mechanical connection, or an electrical connection, may be a direct connection, or may be an indirect connection via an intermediary, or may be an internal communication between two devices, elements, or components. The specific meaning of the above terms in the embodiments of the present disclosure may be understood by those of ordinary skill in the art according to specific circumstances.

The term "plurality" means two or more, unless otherwise indicated.

The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, A and/or B, represent A or B, or three relationships of A and B.

It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.

As shown in fig. 1 to 12, the embodiment of the present disclosure provides a gas stove, which includes a burner for realizing combustion and a liquid containing plate 60, wherein the liquid containing plate 60 is connected with the burner for containing soup overflowed from a pot, and the like.

The embodiment of the disclosure provides a burner, as shown in fig. 1, the burner includes a fire cover 10, a gas distribution plate 20 and an ejector, the gas distribution plate 20 is configured with a gas mixing cavity 204, the fire cover 10 is covered above the gas mixing cavity 204, so that the fire cover 10 and the gas distribution plate 20 enclose a gas mixing cavity 207, and the gas mixing cavity 207 includes the gas mixing cavity 204. The fire cover 10 is provided with fire holes 101, and the fire holes 101 are used for realizing the combustion of the fire cover 10. The inlet of the gas separation disc 20 is communicated with the outlet of the ejector, and the ejector ejects fuel gas or a mixed gas of fuel gas and air (for convenience of description, the mixed gas is hereinafter referred to as fuel gas) into the gas mixing chamber 207, and the fuel gas flows to the fire hole 101 through the gas mixing chamber 207 to provide fuel gas for the combustion of flame at the fire hole 101.

Optionally, a fire hole 101 is provided in at least one of the top wall of the fire cover 10 and the side wall of the fire cover 10.

Optionally, the fire lid 10 is annular, and the quantity of fire lid 10 is a plurality of, and a plurality of fire lids 10 are along the direction interval setting in proper order from inside to outside, and specifically, along outside to inside direction, a plurality of fire lids 10 overlap in proper order and establish, and the setting of a plurality of fire lids 10 has increased the play fire area of combustor, and then improves the temperature homogeneity of combustor, improves the thermal efficiency and the heating effect of combustor.

Alternatively, the fire holes 101 of the plurality of fire covers 10 may be identical or different in form, and in actual use, the fire holes 101 of the plurality of fire covers 10 may be provided in form according to the use requirement.

As an example, as shown in fig. 1, the number of fire covers 10 is four, and four fire covers 10 are sequentially arranged at intervals in the inside-out direction. The four fire covers 10 include, from inside to outside, a center fire cover 103, an inner fire cover 104, an intermediate fire cover 105, and an outer fire cover 106.

As shown in fig. 1 to 3, the embodiment of the present disclosure provides a burner, wherein a plurality of secondary air holes 203 are provided between adjacent fire covers 10, the plurality of secondary air holes 203 are sequentially arranged at intervals along the circumferential direction of the burner, and the fire holes 101 of the adjacent fire covers 10 are all communicated with the secondary air holes 203.

By adopting the burner of the embodiment of the disclosure, the secondary air holes 203 are arranged between the adjacent fire covers 10, so that the secondary air quantity at the fire holes 101 can be ensured, and the combustion sufficiency of flames at the fire holes 101 can be further improved.

Optionally, the fire hole 101 extends along the radial direction of the fire cover 10 and penetrates through the top wall of the fire cover 10 and the side wall of the fire cover 10, so that the flame at the fire hole 101 is stable, and the phenomenon of flame separation is avoided. Meanwhile, the fire hole 101 penetrates through the top wall and the side wall of the fire cover 10 in the radial direction, when the fire cover 10 is annular, the fire hole 101 penetrates through the annular cavity, and two sides of the fire hole 101 can be in contact with secondary air, so that the utilization rate of the secondary air by the fire hole 101 can be improved, the influence of the secondary air on the uniform temperature effect is reduced, and the uniform temperature heating effect of efficient heat transfer is further achieved.

Alternatively, as shown in fig. 2 and 3, the upper side of the fire hole 101 is opened, and the fire hole 101 is inclined with respect to the height direction of the fire cover 10, and the inclination direction and inclination angle of the plurality of fire holes 101 of one fire cover 10 are the same, so that the fire cover 10 forms a swirling air flow.

In the embodiment of the disclosure, the fire hole 101 extends along the radial direction of the fire cover 10, and the fire hole 101 is opened on the top wall and the side wall of the fire cover 10, so that the fire outlet area of the fire hole 101 is increased. The fire holes 101 are obliquely arranged relative to the height direction of the fire cover 10, and the oblique directions and angles of the fire holes 101 are the same, so that swirling air flow can be formed by the fire cover 10, flue gas generated by burning the fire cover 10 moves towards the bottom of the pot and stays at the center of the bottom of the pot, the dissipation of high-temperature flue gas is reduced, and the heat efficiency is improved.

Alternatively, the inclination direction and inclination angle of the fire holes 101 of the plurality of fire covers 10 are the same to form a plurality of swirling airflows.

In the embodiment of the disclosure, the fire holes 101 of the fire cover 10 form multiple swirl air flows, so that high-temperature flue gas generated by the combustion of the fire cover 10 stays at the center of the pan bottom under the action of the layer-by-layer swirl air field, the dissipation of the high-temperature flue gas is reduced, the heat efficiency is improved, the pan bottom can be uniformly heated, and the temperature homogenizing effect of the burner is improved.

Alternatively, the plurality of fire holes 101 of the fire cover 10 are arranged at regular intervals in sequence in the circumferential direction of the fire cover 10, so that the combustion uniformity of the fire cover 10 can be further ensured.

Alternatively, the fire hole 101 is rectangular in shape to increase the combustion area of the fire hole 101.

As illustrated in fig. 2, for example, the fire hole 101 has a rectangular shape and penetrates the side wall and the top wall of the fire cover 10.

Alternatively, the inclination angle of the fire hole 101 ranges from 30 ° to 45 °.

In the embodiment of the disclosure, when the inclination angle of the fire hole 101 is smaller than 30 °, the swirling effect of the fire hole 101 is not obvious, and the guiding effect on the flue gas is small. When the inclination angle of the fire hole 101 is larger than 45 degrees, the inclination angle of the fire hole 101 is too large, and the flame at the fire hole 101 is high, so that smoke is easily raised. The inclination angle of the fire hole 101 is controlled to be between 30 and 45 degrees, so that the swirling effect on the smoke can be ensured, and the smoke generated by the combustion of the fire cover 10 can be reduced.

By way of example, the inclination angle of the fire hole 101 may be 30 °, 35 °, 40 °,45 °.

Alternatively, the number of secondary air holes 203 is the same as and corresponds to one with the number of fire holes 101 of the adjacent at least one fire cover 10. This can accurately supplement secondary air to the fire hole 101, improve the flame combustion sufficiency at the fire hole 101, reduce smoke, and improve the combustion uniformity of the fire cover 10.

Optionally, the plurality of fire covers 10 includes a first fire cover and a second fire cover, the first fire cover is provided with a first fire hole 101, the first fire hole 101 is obliquely arranged with respect to a height direction of the first fire cover, the number of the first fire holes 101 is a plurality, and the oblique directions of the plurality of first fire holes 101 are the same. The second fire lid cover is located the outside of first fire lid, and the second fire lid is equipped with second fire hole 101, and second fire hole 101 is for the direction of height slope setting of second fire lid, and the quantity of second fire hole 101 is a plurality of, and the incline direction of a plurality of second fire holes 101 is the same. Wherein, a first secondary air hole 203 is arranged between the first fire cover and the second fire cover, and the number of the first secondary air holes 203 is the same as and one-to-one corresponding to the number of the first fire holes 101.

In the embodiment of the disclosure, the number of the secondary air holes 203 between the two fire covers 10 is the same as and corresponds to the number of the fire holes 101 of the fire cover 10 on the inner side one by one, so that the secondary air holes 203 are convenient to process, and the strength of the burner can be ensured.

It should be noted that the second fire cover is located outside the first fire cover, and when the burner is a double-ring burner, the second fire cover is an inner fire cover, and the first fire cover is an outer fire cover. When the burner is a three-ring burner, the second fire cover is a central fire cover, the first fire cover is an inner ring fire cover, or the second fire cover is an inner ring fire cover, and the first fire cover is an outer ring fire cover. When the burner is a four-ring burner, the first fire cover can be a second fire cover which is a central fire cover, the first fire cover is an inner ring fire cover, or the second fire cover is an inner ring fire cover, the first fire cover is an intermediate ring fire cover, or the second fire cover is an intermediate ring fire cover, and the first fire cover is an outer ring fire cover. It will be appreciated that burners having inner and outer disposed fire covers 10 are all alternate embodiments of the present application.

Alternatively, the plurality of secondary air holes 203 are provided at regular intervals in sequence in the circumferential direction of the fire cover 10.

In the embodiment of the disclosure, the plurality of secondary air holes 203 are uniformly formed, so that uniformity of secondary air supplement can be ensured, combustion uniformity of the fire cover 10 is further ensured, and temperature uniformity effect of the burner is improved. Meanwhile, the defect of insufficient air supplement of the local flame holes 101 can be prevented, so that local flue gas is too high and the flame heights of the flame holes 101 are uneven.

Alternatively, the secondary air holes 203 are circular. Here, the circular secondary air holes 203 can further improve the replenishment uniformity of secondary air.

Alternatively, as shown in fig. 1 and 4, circular secondary air holes 203 are provided at regular intervals in order in the circumferential direction of the fire cover 10. The circular secondary air holes 203 can accurately supplement the root parts of the two side cyclone flames under the action of the two side cyclone air flow fields, so that the opposite impact of the two side cyclone flames is prevented, and the smoke emission is increased. Moreover, the circular fire holes 101 in uniform form can form a swirling flow field of air under the action of swirling flow air fields at two sides, so that the circular fire holes are fully mixed with fuel gas, and the combustion performance is improved.

Alternatively, the plurality of secondary air holes 203 are the same in shape and size. Here, the shape and size of the secondary air holes 203 are the same, which facilitates the processing of the secondary air holes 203, and further improves the uniformity of the secondary air replenishment amount, thereby improving the temperature uniformity effect of the burner.

As shown in fig. 1, the number of fire covers 10 is four, three circles of secondary air holes 203 are arranged between the four fire covers 10, and the multiple rotational flow design form can mutually form a rotational flow field of mixed gas with the multiple secondary air inlet holes 205, so that the fuel gas and the secondary air are fully mixed again.

The embodiment of the disclosure further provides an air distribution plate 20 for a burner, the air distribution plate 20 defines an air mixing cavity 204, the fire cover 10 covers the air mixing cavity 204, the number of the air mixing cavities 204 is the same as that of the fire cover 10 and corresponds to that of the fire cover 10 one by one, secondary air holes 203 are formed between adjacent air mixing cavities 204, the air mixing cavities 204 are annular, and a plurality of air mixing cavities 204 are sequentially arranged at intervals along the direction from inside to outside.

In the embodiment of the disclosure, the fire cover 10 and the gas distribution plate 20 enclose a gas mixing chamber 207, and the gas mixing chamber 207 is communicated with the fire hole 101. The number of the air mixing chambers 204 of the air distribution tray 20 is the same as and corresponds to the fire covers 10 one by one so that each fire cover 10 can precisely supply the fuel gas, and the fuel gas supply amount of each fire cover 10 can be adjusted. The adjacent air mixing chambers 204 are provided with secondary air holes 203, so that the structure of the air distribution plate 20 can be fully utilized, and the gas and secondary air supply of the fire cover 10 can be realized. And the secondary air holes 203 are formed in the air distribution plate 20, and compared with the annular secondary air channels formed in the air distribution plate in the related art, the secondary air holes 203 can increase the strength of the air distribution plate 20 and avoid deformation of the air distribution plate 20 during high-temperature combustion.

Optionally, the air distribution tray 20 is further configured with secondary air slots 201, the secondary air slots 201 are located between adjacent air mixing chambers 204, the secondary air slots 201 protrude from the air mixing chambers 204 in the height direction, and the secondary air slots 201 are provided with secondary air holes 203.

In the embodiment of the disclosure, the secondary air slot 201 protrudes from the air mixing cavity 204 in height, and the secondary air slot 201 is provided with the secondary air hole 203, so that the material used in the secondary air slot 201 is increased, the overall strength of the air distribution plate 20 is further increased, the deformation of the air distribution plate 20 caused by high temperature during combustion can be prevented, and the performance of the air distribution plate 20 is ensured.

As an example, as shown in fig. 6, the secondary air tank 201 has a lower end opening, and the secondary air tank 201 includes an upper side wall, an outer side wall, and an inner side wall, the outer side wall being connected to the outside of the upper side wall and extending downward, the inner side wall being connected to the inside of the upper side wall and extending downward, wherein the secondary air hole 203 is provided in the upper side wall and communicates with the outside through the upper side wall. The outer side wall of the inner secondary air slot 201 and the inner side wall of the outer secondary air slot 201 in the adjacent secondary air slots 201 enclose a mixing cavity 204.

Alternatively, when the number of the air mixing chambers 204 and the secondary air slots 201 is plural, the plurality of air mixing chambers 204 and the plurality of secondary air slots 201 are sequentially spaced in the inside-out direction. This allows secondary air to be replenished to both sides of the fire cover 10, improving combustion sufficiency and uniformity.

Alternatively, as shown in fig. 7, a first step 102 is formed at the lower end of at least one side wall of the fire cover 10, a second step 202 is formed at the upper end of at least one side wall of the air mixing chamber 204, and when the fire cover 10 is covered over the air mixing chamber 204, the first step 102 and the second step 202 are buckled to seal the fire cover 10 and the air mixing chamber 204.

In the embodiment of the disclosure, the fire cover 10 and the air distribution plate 20 are connected by using the connection mode of the first step part 102 and the second step part 202, so that the side wall of the fire cover 10 and the side wall of the air mixing cavity 204 can be tightly attached, a better sealing effect is achieved, and air leakage is avoided. But also can increase the supporting effect of the gas distribution plate 20 on the fire cover 10 and improve the connection stability of the fire cover 10 and the gas distribution plate 20.

Alternatively, the inner and outer sidewall portions of the secondary air slot 201 are recessed downward to form a second step 202.

As shown in fig. 1 and 7, the plurality of fire covers 10 include a central fire cover 103, the central fire cover 103 is located at the innermost side of the fire cover 10, the central fire cover 103 includes a first top wall and a ring side wall, the ring side wall extends downwards from the outer edge of the first top wall, a first step portion 102 is provided at the lower end of the ring side wall, a second step portion 202 is provided at the upper end of the side wall of the central air mixing cavity 2041 corresponding to the central fire cover 103, and when the central fire cover 103 is located above the central air mixing cavity 2041, the first step portion 102 is buckled with the second step portion 202.

The plurality of fire covers 10 further includes a third fire cover, wherein the third fire cover is sleeved on the outer side of the central fire cover 103, the third fire cover includes a second top wall, an inner side wall and an outer side wall, the inner side wall is connected to the inner side of the second top wall and extends downwards from the inner edge of the second top wall, and the outer side wall is connected to the outer side of the second top wall and extends downwards from the outer edge of the second top wall. Wherein, the lower ends of the inner side wall and the outer side wall of the ring are respectively provided with a first step part 102, the gas distribution disc 20 is provided with a third gas mixing cavity, the upper ends of the outer side wall and the inner side wall of the third gas mixing cavity are respectively provided with a second step part 202, and when the third fire cover is covered on the third gas mixing cavity, the first step part 102 and the second step part 202 are buckled. Here, the third fire cover may be an outer ring fire cover 106, an inner ring fire cover 104, or a middle ring fire cover 105.

Optionally, the gas distribution plate 20 comprises a gas distribution plate body and a protective edge 206, wherein the gas distribution plate body is provided with a gas mixing cavity 204 and a secondary air groove 201, the protective edge 206 is arranged on the outer side of the gas distribution plate body and extends annularly along the circumferential direction of the gas distribution plate body, and when the fire cover 10 is arranged above the gas mixing cavity 204 in a covering manner, the protective edge 206 protrudes out of the outermost fire cover 10.

In the embodiment of the disclosure, the outermost edge of the gas distribution plate 20 is provided with a protection edge 206, and the protection edge 206 can prevent the flame of the outermost fire cover 10 from extending to the outer side of the gas distribution plate 20, so as to prevent the flame of the outermost fire cover 10 from burning other parts, such as the liquid containing plate 60, and the like, so that heat transfer loss is caused, and further, the heat efficiency of the burner is ensured.

For example, as shown in fig. 1, when the gas cooker includes the liquid containing plate 60, the liquid containing plate 60 is located below the gas distributing plate 20, the plurality of fire covers 10 includes a fourth fire cover 107, the fourth fire cover 107 is located at the outermost side of the plurality of fire covers 10, and the protective edge 206 of the gas distributing plate 20 is located at the outer side of the fourth fire cover 107, so as to avoid the flame burning of the fourth fire cover 107 on the liquid containing plate 60.

Embodiments of the present disclosure provide a burner comprising a gas distribution plate for a burner of any of the embodiments described above.

The burner provided in the embodiments of the present disclosure, because of including the gas distribution plate for a burner according to any one of the embodiments, has the beneficial effects of the gas distribution plate for a burner according to any one of the embodiments, and is not described in detail herein.

Optionally, as shown in fig. 5 and fig. 6, the air mixing chamber 207 is provided with air inlets 205, the air inlets 205 are communicated with the air mixing chamber 207, the burner includes an ejector, and an outlet of the ejector is directly or indirectly communicated with the air inlets 205, wherein one or more air inlets 205 of the air mixing chamber 207 are provided, and when the number of air inlets 205 of the air mixing chamber 207 is multiple, the multiple air inlets 205 of the air mixing chamber 207 are arranged in an array.

In the embodiment of the disclosure, the gas or air gas ejected by the ejector flows into the air inlet hole 205 and then flows into the air mixing chamber 207 through the air inlet hole 205, so as to realize the combustion of the fire cover 10. When the volume of the air mixing chamber 207 is small, one air inlet 205 can meet the gas demand of the air mixing chamber 207. When the volume of the air mixing chamber 207 is larger, a plurality of air inlets 205 are arranged in the air mixing chamber 207, and the plurality of air inlets 205 of the air mixing chamber 207 are arranged in an array, so that the air inflow of the air mixing chamber 207 can be ensured, the gas distribution uniformity of the air mixing chamber 207 is improved, and the combustion uniformity of a combustor is facilitated. The arrangement of the plurality of air inlets 205 makes the air mixing cavity 204 of the air distribution plate 20 not required to be annular, so that the strength of the air distribution plate 20 can be improved, and deformation of the air distribution plate 20 during high-temperature combustion can be avoided.

In addition, the arrangement of the array-type arranged air inlets 205 can uniformly distribute the fuel gas entering the fire cover 10, so that the uneven distribution of the fuel gas is prevented, and the overall pressure change and uneven combustion are caused.

It should be noted that the array arrangement of the present application means that the plurality of air intake holes 205 are sequentially and uniformly spaced along the circumferential direction of one air mixing chamber 207.

Optionally, the ejector can supply air and fuel gas in a blowing mode and/or a natural ejection mode, that is, the air inlet mode of the ejector can be natural ejection or blowing premixing.

In one embodiment, as shown in fig. 7, the injector is directly in communication with the air inlet 205, and the injector is capable of directly injecting the fuel gas into the plenum 207. Optionally, the ejector is located below the gas separation disc 20, and the ejector extends in a vertical direction, so that the fuel gas in the ejector enters the gas mixing chamber 207. In another embodiment, as shown in fig. 8 and 12, other components, such as a premixing component, are disposed between the ejector and the air intake hole 205, so as to realize indirect communication between the ejector and the air intake hole 205. It will be appreciated that burners capable of delivering fuel gas from the eductor to the plenum 207 through the inlet ports 205 are alternative embodiments of the application.

Optionally, the number of the air mixing chambers 207 is multiple, the air mixing chambers 207 are annular, the air mixing chambers 207 are sequentially arranged at intervals along the direction from inside to outside, the air inlet holes 205 of one air mixing chamber 207 comprise first air inlet holes 2051, and the first air inlet holes 2051 of the air mixing chambers 207 are sequentially arranged at intervals along the radial direction of the air distribution disc 20.

In the embodiment of the disclosure, the plurality of air inlets 205 of one air mixing chamber 207 are arranged along an array, and when the number of air mixing chambers 207 is a plurality of, at least one air inlet 205 of the plurality of air mixing chambers 207 is sequentially arranged at intervals along the radial direction of the air distribution plate 20, it can be understood that the first air inlets 2051 of the plurality of air mixing chambers 207 are arranged along the radial direction of the air distribution plate 20 and are in the same straight line, so that the arrangement of the pipeline 40 or the ejector communicated with the air inlets 205 is more compact, interference is avoided, and the arrangement is easy. Alternatively, the air inlets 205 of the plurality of air mixing chambers 207 are arranged in the same array, and the same array arrangement of the air inlets 205 of the plurality of air mixing chambers 207 can minimize external air resistance entering the secondary air holes 203, thereby improving thermal efficiency.

Optionally, the air inlet hole 205 is disposed at the bottom of the air mixing cavity 204, that is, at the bottom wall of the air separation tray 20, so as to facilitate the setting of the ejector and inflow of the fuel gas.

As shown in fig. 5, for example, the air distribution plate 20 is configured with four air mixing chambers 204 sleeved in sequence from inside to outside, and the four air mixing chambers 204 are respectively provided with a first air inlet hole 2051, and the first air inlet holes 2051 are sequentially arranged at intervals along the radial direction of the air distribution plate 20.

Optionally, the plurality of air mixing chambers 207 include a first air mixing chamber 207 and a second air mixing chamber 207, the first air mixing chamber 207 is provided with second air inlet holes 2052, the second air mixing chamber 207 is sleeved outside the first air mixing chamber 207, the second air mixing chamber 207 is provided with third air inlet holes 2053, and the number of the third air inlet holes 2053 is greater than or equal to that of the second air inlet holes 2052.

In the embodiment of the disclosure, since the air-mixing chambers 207 are annular and are sequentially arranged at intervals along the direction from inside to outside, the volume and perimeter of each air-mixing chamber 207 are different, and the volume and perimeter of the second air-mixing chamber 207 located at the outside are larger, so that the amount of fuel gas required by the second air-mixing chamber 207 located at the outside is larger, and the number of the third air inlets 2053 arranged in the second air-mixing chamber 207 located at the outside is greater than or equal to the number of the second air inlets 2052 in the first air-mixing chamber 207 located at the inside, so as to ensure the fuel gas supply amount of the second air-mixing chamber 207 located at the outside and ensure the fuel gas flow uniformity in the second air-mixing chamber 207 located at the outside.

For example, as shown in fig. 4, the air distribution plate 20 is sequentially configured with a central air mixing cavity 2041, an inner ring air mixing cavity 2042, an intermediate ring air mixing cavity 2043 and an outer ring air mixing cavity 2044 from inside to outside, and the fire covers 10 corresponding to each other are provided with a central fire cover 103, an inner ring fire cover 104, an intermediate ring fire cover 105 and an outer ring fire cover 106, so that a central air mixing chamber, an inner ring air mixing chamber, an intermediate ring air mixing chamber and an outer ring air mixing chamber are formed. The number of air inlets 205 of the inner ring air mixing chamber is greater than the number of air inlets 205 of the center air mixing chamber, the number of air inlets 205 of the middle ring air mixing chamber is greater than the number of air inlets 205 of the inner ring air mixing chamber, and the number of air inlets 205 of the outer ring air mixing chamber is equal to the number of the middle ring air mixing chamber.

Alternatively, as shown in fig. 8, 11 and 12, the ejector comprises a first ejector 30, the burner further comprises pipelines 40, and the pipelines 40 are communicated between the first ejector 30 and the air mixing chamber 207, wherein the number of the pipelines 40 is the same as that of the air inlets 205 and corresponds to one.

In the embodiment of the disclosure, each air inlet 205 is correspondingly provided with a pipeline 40 to ensure the air inlet uniformity of each air inlet 205, thereby improving the gas uniformity of the gas mixing chamber 207 and ensuring the uniform temperature effect of the burner. Moreover, the plurality of pipelines 40 are communicated with the air inlet holes 205 below the air distribution plate 20, the pipelines 40 play a role in supporting the air distribution plate 20, the air inlet holes 205 are arranged in an array, and the pipelines 40 are also arranged in an array, so that the whole air distribution plate 20 is uniformly stressed.

Alternatively, the first ejector 30 may supply the air-fuel gas in the form of air blast and/or in the form of natural ejection, that is, the air intake mode of the first ejector 30 may be natural ejection or air blast premixing.

Optionally, as shown in fig. 8 and 9, the combustor further includes a premix chamber 50, the premix chamber 50 is communicated between the inlet of the pipeline 40 and the outlet of the first injector 30, that is, the pipeline 40 is communicated with the outlet of the premix chamber 50, the outlet of the first injector 30 is communicated with the inlet of the premix chamber, and the air inlet 205 of the air mixing chamber 207 is communicated with the outlet of the premix chamber 50 through the pipeline 40. When the air mixing chamber 207 is provided with a plurality of air inlets 205, the air inlets 205 of the air mixing chamber 207 are communicated with the premixing chamber 50 through the pipeline 40.

In the embodiment of the disclosure, the fuel gas (fuel gas or air-fuel gas) injected by the first injector 30 first enters the premixing cavity 50, after being sufficiently premixed in the premixing cavity 50, flows into the air mixing chamber 207 through the pipeline 40, so that the fuel gas and primary air can be sufficiently and uniformly mixed, and then precisely enters the air mixing chamber 207 through the pipeline 40, and the fuel gas is supplemented to one or more air mixing chambers 207, so that the combustion of the burner is ensured. Therefore, parts such as a furnace end and a sealing piece are not required to be additionally arranged, the structural complexity of the burner is reduced, the sealing performance of the connecting parts of the parts such as the furnace end or the sealing piece is not required to be considered, the temperature homogenizing effect and the sealing performance of the burner are ensured, and meanwhile, the structure of the burner is simplified.

The burner of the embodiment of the disclosure breaks through the traditional burner design, the premixing cavity 50 can ensure that the fuel gas and the air are fully mixed, the mixed gas flows into the gas distribution disc 20 again, the pressure is uniform, the phenomenon of nonuniform pressure distribution of the gas outlet holes is avoided, and the uniform combustion of the burner is ensured.

Alternatively, as shown in FIGS. 8 and 12, the number of premix chambers 50 is less than or equal to the number of plenums 207. It is understood that one plenum 204 is in communication with at least one plenum 207. This reduces the number of premix chambers 50, reduces the size of the burner, and facilitates the installation of the burner.

Alternatively, when the number of the premix chambers 50 is plural, the premix chambers 50 are sequentially spaced apart in the height direction.

In the disclosed embodiment, each plenum 207 is provided with an independent premix chamber 50, such that the thermal load of each plenum 207 may be set individually. And breaks the traditional furnace end design, can ensure that gas and air are fully mixed, and in the inflow gas distribution plate 20, the pressure is even, and the phenomenon of uneven distribution of the pressure of the gas outlet holes is avoided.

Alternatively, the centers of the plurality of premix chambers 50 are located on the same vertical line, that is, the plurality of premix chambers 50 are located on the same central axis, which can further reduce the space of the lower portion of the burner.

Optionally, the center of the premix chamber 50 is on the same vertical line as the center of the gas distribution plate 20, that is, the premix chamber 50 is on the same central axis as the gas distribution plate 20 and the fire cover 10, which can reduce the connection length of the pipe 40 and further reduce the space in the lower part of the burner.

Optionally, the number of the premixing chambers 50 is multiple, the premixing chambers 50 include a first premixing chamber 503 and a second premixing chamber 504 which are sequentially arranged from top to bottom, wherein a third air mixing chamber 207 communicated with the first premixing chamber 503, and a fourth air mixing chamber 207 corresponding to the second premixing chamber 504, wherein the third air mixing chamber 207 and the fourth air mixing chamber 207 are sequentially arranged at intervals along the direction from inside to outside.

In the embodiment of the disclosure, when the premixing chamber 50 and the air mixing chamber 207 are multiple, the premixing chamber 50 located above is communicated with the air mixing chamber 207 on the inner side, and the premixing chamber 207 located below is communicated with the air mixing chamber 207 on the outer side during premixing, so that the arrangement of multiple pipelines 40 is covered and facilitated, and interference between the pipelines 40 is avoided.

For example, as shown in fig. 8, when the number of premixing chambers 50 is three, the plurality of premixing chambers 204 further includes a third premixing chamber 505, and the third premixing chamber 505 is located below the second premixing chamber 504, in a specific embodiment, the central air mixing chamber and the inner ring air mixing chamber are both communicated with the first premixing chamber 503, and because the amount of fuel gas required by the central air mixing chamber is smaller, the central air mixing chamber and the inner ring air mixing chamber share one premixing chamber 50, which can also meet the use requirement of the burner. In another embodiment, the central air-mixing chamber is directly communicated with the first injector 30 through the pipeline 40, and also because the amount of fuel gas required by the central air-mixing chamber is small, the injection amount of the first injector 30 can meet the combustion of the central fire cover 103, so that the central air-mixing chamber can be directly communicated with the first injector 30.

Optionally, the second premix chamber 504 communicates with the middle ring plenum and/or the third premix chamber 505 communicates with the outer ring plenum. Therefore, the gas demand of the middle-ring gas mixing chamber and the outer-ring gas mixing chamber can be met, and the gas quantity of the middle-ring gas mixing chamber and the outer-ring gas mixing chamber can be adjusted.

Optionally, the pipe diameters of the corresponding pipelines 40 of the premixing cavity 50 are the same, so that the gas flow from the premixing cavity 50 is the same.

Alternatively, the pipe diameters of the pipelines 40 corresponding to different premixing chambers 50 may be the same or different.

Optionally, the pipes 40 are connected to a side wall of the premix chamber 50, and the multiple pipes 40 are sequentially spaced along the circumferential direction of the premix chamber 50, and/or the first injector 30 is connected to the bottom of the premix chamber 50.

In the disclosed embodiment, the sidewall of the premix chamber 50 is vented and/or the bottom is vented, which facilitates the positioning of the conduit 40 and the first injector 30, reduces the height of the burner, and facilitates the installation of the burner. In addition, the outlet of the premix chamber 50 is disposed on the top surface and/or the side surface of the premix chamber 50, the inlet of the premix chamber 50 is disposed at the bottom of the premix chamber 50, and particularly, when the outlet of the premix chamber 50 is disposed on the side surface of the premix chamber 50, the premix chamber 50 adopts a form of air inlet from below and air outlet from side, so that the air entering the premix chamber 50 is ensured to vertically enter, fully mixed in the premix chamber 50, and then uniformly discharged from side, enters the side pipeline 40, and then flows into the air mixing chamber 207.

Optionally, when the multiple pipelines 40 corresponding to the air mixing chamber 207 are all communicated with the pre-mixing chamber 50, the multiple pipelines 40 of the air mixing chamber 207 are sequentially and uniformly spaced along the circumferential direction of the pre-mixing chamber 50, so that the uniformity of the pressure and the uniform flow rate of the gas exiting from the pre-mixing chamber 50 can be further ensured.

Optionally, the first eductor 30 may extend at least partially horizontally and/or the premix chamber 50 may be positioned below the distributor tray 20 with at least a portion of the conduit 40 extending vertically.

In the embodiment of the disclosure, the first ejector 30 extends at least partially in the horizontal direction, so that the overall height of the burner can be reduced, and the burner is convenient to install. At least a portion of the conduit 40 extends in a vertical direction to facilitate channeling the fuel gas within the premix chamber 50 to the intake apertures 205.

Optionally, the number of the first ejectors 30 is the same as the number of the premixing chambers 50 and corresponds to one another, so as to ensure that the fuel gas supply of each premixing chamber 50 is adjustable.

Optionally, the pipeline 40 includes a second ejector 401, an outlet 4011 of the second ejector is communicated with the air mixing chamber 207, and an inlet of the second ejector 401 is communicated with an outlet of the premixing chamber 50.

In the embodiment of the disclosure, the second ejector 401 can perform secondary ejection on the fuel gas flowing into the gas mixing chamber 207 from the premixing chamber 50, so as to realize a form of multi-time ejection, further ensure the content of air in the fuel gas flowing into the gas mixing chamber 207, and ensure the sufficiency of combustion. The second ejector 401 re-introduces the external air into the gas mixing chamber 207 of the burner in a non-contact ejection mode.

Optionally, the second ejector 401 is located below the gas distribution plate 20, and an outlet 4011 of the second ejector is communicated with the air inlet 205, where the outlet 4011 of the second ejector is in a horn shape, so that the pressure of the air outlet can be reduced, the flow rate of the gas at the outlet 4011 of the second ejector is reduced, the impact on the fire cover 10 is reduced, and the gas distribution in the gas distribution plate 20 is ensured to be uniform.

Optionally, the second eductor 401 extends in a vertical direction to facilitate channeling the combustion gases within the underlying premix chamber 50 into the plenum 207.

Optionally, the second ejector 401 is fixedly connected with the air distribution disc 20, so that the air distribution disc 20 and the second ejector 401 are of an integrated structure, the connection work of the second ejector 401 and the air distribution disc 20 is reduced, and the second ejector 401 is not required to be assembled and positioned. And the connection tightness between the second ejector 401 and the air inlet hole 205 can be improved, so that air leakage is avoided. Such a gas-distributing plate 20 is fixedly connected with the second ejector 401, so that the gas-distributing plate 20 is an independent gas-distributing plate 20 with an ejector function, and can be adapted to various combustors.

The second ejector 401 is illustratively welded or integrally formed with the gas distribution plate 20.

Optionally, the conduit 40 further comprises a communication conduit 402, the communication conduit 402 being in communication between the other end of the second injector 401 (i.e. the inlet of the second injector 401) and the outlet of the premix chamber 50.

In the embodiment of the disclosure, the communication pipeline 402 is communicated between the outlet of the premixing cavity 50 and the inlet of the second injector 401, and can guide the fuel gas in the premixing cavity 50 into the second injector 401. Moreover, the communication line 402 can increase the distance between the gas distribution plate 20 and the premix chamber 50, reducing the heat transfer between the gas distribution plate 20 and the premix chamber 50.

Optionally, the communication pipeline 402 is plugged in the second ejector 401, so as to realize communication between the communication pipeline 402 and the second ejector 401. Wherein, the upper end of the communication pipeline 402 is provided with an air hole 4021, the air hole 4021 is communicated with the outside and the inside of the communication pipeline 402, the second ejector 401 can eject the outside air to flow into the communication pipeline 402 through the air hole 4021 and then flow into the second ejector 401 to realize the secondary ejection,

Optionally, the premix chamber 50 includes a body 501 and a cover 502, the body 501 encloses a premix chamber 50 chamber with an opening, the cover 502 is movably disposed at the opening of the premix chamber 50 chamber, and the cover 502 can adjust the volume of the premix chamber 50 chamber.

In the embodiment of the disclosure, the volume of the premix chamber 50 is variable, so that the premix chamber 50 can adjust the volume according to different types of fuel gas or different use requirements, and the use flexibility of the burner is improved.

Optionally, a cap 502 is sealingly connected to the premix chamber 50 chamber.

Optionally, the cap 502 is threadably coupled to the walls of the premix chamber 50 chamber to adjust the position of the cap 502. Specifically, the cover 502 is located at the upper portion of the chamber of the premix chamber 50, facilitating the adjustment of the cover 502.

The embodiment of the disclosure also provides a gas stove, which comprises the burner of any one of the embodiments.

The gas stove provided by the embodiment of the present disclosure, because of including the burner of any one of the embodiments, has the beneficial effects of any one of the burners described above, and will not be described herein again.

Optionally, the gas stove includes a liquid containing plate 60, a lower end portion of the second injector 401 (i.e., the other end of the second injector) is supported on an upper surface of the liquid containing plate 60, and the premix chamber 50 is located below the liquid containing plate 60. In this way, the fire cover 10 and the gas distribution plate 20 are not contacted with the premixing cavity 50 below, and heat generated by high-temperature combustion of the fire cover 10 cannot be transferred to the premixing cavity 50 below through contact, so that heat conduction is reduced, and the heat efficiency of the burner is improved.

The communication line 402 also allows a space between the premix chamber 50 and the basin 60, reducing heat transfer between the basin 60 and the premix chamber 50. And the communicating pipeline 402 enables the premixing chambers 50 arranged along the height direction to be supported and communicated with the second ejector 401 above the liquid containing disc 60.

Optionally, a third step portion 4012 is configured at the lower end portion of the second ejector 401, the liquid containing tray 60 is provided with a through hole 601, when the second ejector 401 is supported above the liquid containing tray 60, a vertical wall surface of the third step portion 4012 extends into the through hole 601, and a horizontal wall surface of the third step portion 4012 abuts against a lower wall surface of the liquid containing tray 60. In this way, the contact area between the second ejector 401 and the liquid containing disc 60 can be increased, and the connection stability between the second ejector 401 and the liquid containing disc 60 can be improved.

In this embodiment, through the arrangement of the third step portion 4012 and the through hole 601, the second ejector 401 is tightly attached to the liquid containing plate 60, so that the overflowed soup is prevented from flowing into the gas stove through the through hole 601 of the liquid containing plate 60 during cooking, and the gas distributing plate 20 and the fire cover 10 can be accurately positioned on the liquid containing plate 60.

The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may include structural and other modifications. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A gas distribution plate for a burner is characterized in that,

The gas distribution disc is provided with a plurality of gas mixing cavities and secondary air grooves, the plurality of gas mixing cavities are sequentially arranged at intervals along the direction from outside to inside, wherein the secondary air grooves are positioned between adjacent gas mixing cavities, the secondary air grooves protrude out of the gas mixing cavities in the height direction, and secondary air holes are formed in the secondary air grooves.

2. A gas distribution plate for a burner as claimed in claim 1, wherein,

The secondary air holes are multiple in number and are sequentially arranged at intervals along the circumferential direction of the secondary air groove.

3. A gas distribution plate for a burner as claimed in claim 2, wherein,

The secondary air holes are rounded, and/or,

The secondary air holes are sequentially and uniformly arranged at intervals along the circumferential direction of the fire cover.

4. A gas distribution plate for a burner as claimed in claim 1, wherein,

The bottom of the mixing cavity is provided with an air inlet hole, and the air inlet hole is suitable for the gas to enter the mixing cavity.

5. A gas distribution plate for a burner according to any of claims 1 to 4, wherein the burner comprises a fire cover adapted to be positioned over the mixing chamber, the gas distribution plate comprising:

The air distribution disc body is provided with an air mixing cavity and a secondary air groove;

the guard edge is arranged at the outer side of the gas distribution plate body and extends annularly along the circumferential direction of the gas distribution plate body;

when the fire cover is arranged above the air mixing cavity, the protection edge protrudes out of the fire cover at the outermost side.

6. A burner comprising a gas distribution plate for a burner according to any one of claims 1 to 5.

7. The burner of claim 6, further comprising:

the fire cover is arranged above the gas distribution plate and is covered above the gas mixing cavity, and the fire cover is provided with a fire hole;

The lower end part of at least one side wall of the fire cover is provided with a first step part, the upper end part of at least one side wall of the gas mixing cavity is provided with a second step part, and when the fire cover is arranged above the gas mixing cavity, the first step part and the second step part are buckled to seal the fire cover and the gas mixing cavity.

8. A burner as claimed in claim 7, wherein,

The fire hole radially runs through the roof and the lateral wall of fire lid along the fire lid, and the fire hole is linked together with the secondary air hole, and the quantity of fire lid is a plurality of, and a plurality of fire lids are along the direction interval setting in proper order from inside to outside, and the secondary air hole is located between the adjacent fire lid, and the quantity of secondary air hole is the same and the one-to-one with the fire hole of adjacent at least one fire lid.

9. The burner according to any one of claims 6 to 8, further comprising:

The second ejector is arranged below the gas distribution disc, extends in the vertical direction, and is communicated with the gas inlet hole;

wherein the number of the second ejectors is the same as that of the air inlet holes and corresponds to one another, or

A first ejector;

The pipeline is communicated between the outlet of the first ejector and the air inlet;

The number of the pipelines is the same as that of the air inlets and corresponds to the air inlets one by one.

10. A gas range comprising a burner as claimed in any one of claims 6 to 9.