CN221146528U - Gas-distributing disc and burner - Google Patents

Abstract

The application relates to the technical field of gas cookers, and discloses a gas distribution plate and a burner. The secondary air channel and the air distribution cavity are sequentially arranged along the radial direction of the air distribution disc, and the secondary air channel penetrates through the air distribution disc along the thickness direction of the air distribution disc; wherein, the bottom wall part of the air dividing cavity is upwards sunken to form a groove, and the groove corresponds to the secondary air channel so as to increase the secondary air quantity flowing to the secondary air channel. The bottom wall part of the air distribution cavity is upwards recessed to form a groove, and the groove corresponds to the secondary air channel, so that the secondary air quantity flowing from the bottom of the air distribution disc to the secondary air channel can be increased, and the secondary air supplementing quantity of the burner is improved. And then can improve the secondary air inlet speed of middle ring or inner ring, reduce air resistance to improve the oxygen supplementing ability of flame, improve combustion effect, reduce the emission of flue gas.

Description

Gas-distributing disc and burner

Technical Field

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

Background

The burner generally includes a gas distribution plate and a fire cover disposed over the gas distribution plate. The gas distribution plate can guide the fuel gas to flow into the fire cover to provide the fuel gas for the combustion of the fire cover. Meanwhile, the air distribution plate generally defines a secondary air channel, secondary air flows to the fire cover through the secondary air channel, secondary air is provided for combustion of the fire cover, flame combustion effect of the fire cover is improved, and generated smoke is reduced.

When the burner in the related art is provided with the multi-ring fire cover, the air distribution plate is generally provided with a plurality of annular air distribution cavities, the secondary air channels and the air distribution cavities are arranged at intervals along the radial direction of the air distribution plate, and secondary air flows into the secondary air channels from the bottom of the air distribution plate along the radial direction of the air distribution plate.

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 burner in the related art, the fire cover of inner ring or middle ring is far away from the outer side wall of the burner, so that the air inflow of secondary air of the fire cover of inner ring or middle ring is smaller, and then the fire cover of inner ring or middle ring is easily caused to burn insufficiently, so that the flue gas of the burner is more, and the combustion efficiency of the burner is reduced.

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 utility model

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 gas distribution plate and a combustor, so as to improve the combustion efficiency of the combustor and reduce smoke.

The embodiment of the disclosure provides a gas distribution plate, wherein the gas distribution plate is provided with a gas distribution cavity and a secondary air channel, the secondary air channel and the gas distribution cavity are sequentially arranged along the radial direction of the gas distribution plate, and the secondary air channel penetrates through the gas distribution plate along the thickness direction of the gas distribution plate; wherein, the bottom wall part of the air dividing cavity is upwards sunken to form a groove, and the groove corresponds to the secondary air channel so as to increase the secondary air quantity flowing to the secondary air channel.

Optionally, the air distribution disc is provided with a plurality of first secondary air channels at intervals along the circumferential direction, wherein grooves formed by one air distribution cavity are the same as the first secondary air channels in number and correspond to each other one by one, and the secondary air channels comprise the first secondary air channels.

Optionally, the number of the gas-dividing cavities is a plurality, and the plurality of gas-dividing cavities are concentrically arranged, and the plurality of gas-dividing cavities includes: an internal air cavity; the middle air dividing cavity is arranged at the outer side of the inner air dividing cavity at intervals, a first groove is formed in the bottom wall of the middle air dividing cavity, and an inner secondary air channel is arranged between the middle air dividing cavity and the inner air dividing cavity; the outer air distribution cavity is arranged at the outer side of the middle air distribution cavity at intervals, a second groove is formed in the bottom wall of the outer air distribution cavity, and an outer secondary air channel is arranged between the outer air distribution cavity and the middle air distribution cavity; the inner secondary air channel and the outer secondary air channel are correspondingly arranged along the radial direction of the air distribution disc, and the first groove and the second groove are correspondingly arranged along the radial direction of the air distribution disc.

Optionally, the gas distribution plate includes: a gas distribution plate body; the inner ring air inlet ring is convexly arranged at the lower end of the air distribution disc body; the outer ring air inlet ring is convexly arranged at the lower end of the air distribution disc body, and is sleeved at the outer side of the inner ring air inlet ring at intervals; the connecting ribs are sequentially connected between the outer side wall of the inner ring air inlet ring and the inner side wall of the outer ring air inlet ring at intervals along the circumferential direction of the inner ring air inlet ring, and an outer ring air inlet is formed between the adjacent connecting ribs; wherein, a plurality of connecting bars include first connecting bar, and the diapire of first connecting bar sets up for the horizontal direction slope.

Optionally, the bottom wall of the first connecting rib is inclined upward in the direction from outside to inside; and/or the cross-sectional area of the bottom wall of the connecting rib gradually decreases in the direction from outside to inside.

Optionally, the plurality of connecting ribs further comprise a second connecting rib, and the second connecting rib is provided with a mounting hole penetrating through the second connecting rib along the thickness direction of the second connecting rib, and the mounting hole is used for mounting a thermocouple; wherein, the diapire of second tie bar extends along the horizontal direction.

Optionally, the gas distribution plate further comprises: the first convex rib is arranged above the gas distribution plate body in a protruding mode, a second secondary air channel is enclosed by the first convex rib, the second secondary air channel penetrates through the gas distribution plate body along the thickness direction of the gas distribution plate body, and the secondary air channel comprises the second secondary air channel; the connecting ribs are located in the second secondary air channel, and the outer wall surfaces of the connecting ribs and the inner wall surfaces of the first protruding ribs form air inlets of the second secondary air channel.

Optionally, the upper wall of the connecting rib is inclined upward in the direction from outside to inside.

Optionally, a top wall is disposed above the internal gas distribution chamber, the top wall being configured with a plurality of through holes.

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

The gas distribution plate and the burner provided by the embodiment of the disclosure can realize the following technical effects:

the gas distribution plate defines a gas distribution chamber and a secondary air passage, and the gas distribution chamber is matched with the fire cover and is used for providing fuel gas for the fire cover. The secondary air channel is arranged at intervals with the air distribution cavity, secondary air can flow to the secondary air channel and then flow to the fire cover from the secondary air channel, secondary air is provided for the combustion of the fire cover, and the combustion sufficiency of the fire cover is ensured. The bottom wall of the air distribution cavity is recessed upwards to form a groove, and the groove corresponds to the secondary air channel, so that the secondary air quantity flowing from the bottom of the air distribution disc to the secondary air channel can be increased, and the secondary air supply quantity of the secondary air channel is improved. And then can improve the secondary air inlet speed of middle ring or inner ring, reduce air resistance to improve the oxygen supplementing ability of flame, improve combustion effect, reduce the emission of flue gas.

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 gas distribution plate according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of a structure of another view of a gas distribution plate according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of another view of a gas distribution plate according to an embodiment of the present disclosure;

Fig. 4 is a schematic cross-sectional structure of an air distribution tray according to an embodiment of the present disclosure.

Reference numerals:

100. An air distribution plate; 10. a secondary air passage; 101. an outer secondary air passage; 102. an inner secondary air passage; 103. a first secondary air passage; 104. a second secondary air passage; 105. the first convex rib; 106. the second convex rib; 20. a gas-dividing chamber; 201. an internal air cavity; 2011. a top wall; 2012. a through hole; 202. a middle gas-dividing cavity; 203. an outer gas-dividing chamber; 30. an inner ring air inlet ring; 301. an inner ring air intake passage; 40. an outer ring air inlet ring; 401. an outer ring air intake passage; 402. an outer ring air inlet; 50. a connecting rib; 501. a first connecting rib; 502. a second connecting rib; 5021. a mounting hole; 60. an intake runner; 70. a groove; 701. a first groove; 702. and a second groove.

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, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in 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, 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.

Referring to fig. 1 to 4, the embodiment of the disclosure provides a gas stove, which includes a burner, the burner includes an ejector, a burner, a gas distribution plate 100, and a fire cover, the gas distribution plate 100 is covered on the burner, and the fire cover is covered on the gas distribution plate 100. The ejector ejects the fuel gas and ejects the fuel gas into the furnace end, and the fuel gas in the furnace end flows into the gas distribution plate 100 again and flows to the fire cover through the gas distribution plate 100. The fire cover is provided with a fire hole, and the fuel gas flows out from the fire hole for realizing the combustion of the fire cover.

Alternatively, the gas separation plate 100 defines the gas separation chamber 20 and the secondary air passage 10, the secondary air passage 10 and the gas separation chamber 20 being disposed in sequence in the radial direction of the gas separation plate 100, the secondary air passage 10 penetrating through the gas separation plate 100 in the thickness direction of the gas separation plate 100.

In the embodiment of the disclosure, the air distribution chamber 20 and the secondary air channel 10 are arranged along the radial direction of the air distribution plate 100, so that when the fire cover is arranged above the air distribution chamber 20, the fire cover and the secondary air channel 10 are sequentially arranged along the radial direction of the air distribution plate 100, and secondary air flowing in the secondary air channel 10 can supplement secondary air to the fire cover. The secondary air passage 10 penetrates the gas distribution plate 100 in the thickness direction of the gas distribution plate 100 so that secondary air can flow in from the bottom of the gas distribution plate 100 and then flow up to the fire cover along the secondary air passage 10, improving the combustion sufficiency of the fire cover. Alternatively, the secondary air flows in from the outside of the gas distribution plate 100, and then flows into the secondary air passage 10 from the outside to the inside in the radial direction of the gas distribution plate 100 at the bottom of the gas distribution plate 100 to achieve the flow of the secondary air.

Optionally, the number of fire covers is a plurality of, and a plurality of fire covers include outer fire cover and interior fire cover, and the outside of interior fire cover is located to outer fire cover. The gas distribution plate 100 correspondingly defines an outer gas distribution chamber 203 and an inner gas distribution chamber 201, and an outer fire cover is arranged above the outer gas distribution chamber 203. The inner fire cover is disposed above the inner gas chamber 201. Wherein the outer and inner air distribution chambers 203, 201 are provided with a third secondary air passage.

Optionally, the plurality of fire covers may further include a middle fire cover, the middle fire cover being located between the inner fire cover and the outer fire cover. The gas panel 100 also defines a central gas-dividing chamber 202, the central gas-dividing chamber 202 being located between the outer gas-dividing chamber 203 and the inner gas-dividing chamber 201. The middle fire cover is arranged above the middle air dividing cavity 202. Wherein an outer secondary air channel 101 is arranged between the outer air-dividing cavity 203 and the middle air-dividing cavity 202, an inner secondary air channel 102 is arranged between the middle air-dividing cavity 202 and the inner air-dividing cavity 201, and the secondary air channel 10 comprises the outer secondary air channel 101 and the inner secondary air channel 102.

Alternatively, as shown in fig. 2, the bottom wall portion of the air distribution chamber 20 is recessed upward to form a groove 70, and the groove 70 corresponds to and communicates with the secondary air passage 10 to increase the amount of secondary air flowing to the secondary air passage 10.

In the embodiment of the disclosure, the bottom wall portion corresponding to the air distribution chamber 20 is recessed upward to form the groove 70, and the groove 70 corresponds to the secondary air passage 10, so that the flow area of secondary air at the bottom of the air distribution plate 100 can be increased, and the secondary air supplementing amount of the secondary air passage 10 can be increased. When the number of the air distribution chambers 20 is plural, the arrangement of the grooves 70 can increase the secondary air supplementing amount of the middle fire cover or the inner fire cover, improve the secondary air flow rate, improve the combustion efficiency of the middle fire cover or the inner fire cover, and reduce the generation of smoke.

Alternatively, the grooves 70 are located outside the secondary air passage 10 to increase the amount of secondary air flowing outside the secondary air passage 10.

Alternatively, the top wall 2011 of the groove 70 is curved, which can reduce the resistance of the secondary air flowing through the groove 70 and increase the secondary air flow rate.

Alternatively, the air distribution tray 100 is provided with a plurality of first secondary air passages 103 at intervals in the circumferential direction, wherein the grooves 70 formed by one air distribution chamber 20 are the same as and correspond to the first secondary air passages 103 in number, and the secondary air passages 10 include the first secondary air passages 103.

In the embodiment of the disclosure, the first secondary air passages 103 are provided in the circumferential direction of the air distribution plate 100, that is, the first secondary air passages 103 are correspondingly provided in the circumferential direction of the air distribution chamber 20, so that the circumferential secondary air supplementing amount of the air distribution chamber 20 can be increased. The bottom wall of the air distribution chamber 20 is formed with grooves 70 corresponding to the plurality of first secondary air passages 103, so that each of the first secondary air passages 103 can improve the replenishment amount of secondary air, thereby improving the circumferential combustion uniformity of the flame cover.

Optionally, the gas separation disc 100 further defines an air intake runner 60, the air intake runner 60 extends along a radial direction of the gas separation disc 100, and the air intake runner 60 communicates with the plurality of gas separation chambers 20 for delivering fuel gas to the plurality of gas separation chambers 20. The air inlet channels 60 and the secondary air channels 10 are sequentially arranged along the circumferential direction of the air distribution plate 100, and it is understood that the side walls of the air inlet channels 60 and the side walls of the air distribution chamber 20 enclose the secondary air channels 10.

Optionally, the number of the air-dividing chambers 20 is plural, the plurality of air-dividing chambers 20 are concentrically arranged, a secondary air channel 10 is provided between adjacent air-dividing chambers 20, and the plurality of air-dividing chambers 20 include an inner air-dividing chamber 201, an intermediate air-dividing chamber 202, and an outer air-dividing chamber 203. The middle air-dividing cavity 202 is arranged at intervals on the outer side of the middle air-dividing cavity 202, a first groove 701 is formed in the bottom wall of the middle air-dividing cavity 202, and an inner secondary air channel 102 is arranged between the middle air-dividing cavity 202 and the inner air-dividing cavity 201; the outer air-dividing cavity 203 is arranged at the outer side of the middle air-dividing cavity 202 at intervals, a second groove 702 is formed in the bottom wall of the outer air-dividing cavity 203, and an outer secondary air channel 101 is arranged between the outer air-dividing cavity 203 and the middle air-dividing cavity 202; wherein the inner secondary air passage 102 and the outer secondary air passage 101 are disposed correspondingly in the radial direction of the gas distribution plate 100, and the first groove 701 and the second groove 702 are disposed correspondingly in the radial direction of the gas distribution plate 100.

In the disclosed embodiment, when the number of the gas-dividing chambers 20 is plural, the burner forms a multi-ring fire. A secondary air channel 10 is arranged between the adjacent air distribution cavities 20, so that secondary air can be supplemented to the two adjacent fire covers. The outer secondary air channel 101 and the inner secondary air channel 102 are arranged along the radial direction of the air distribution plate 100, so that the air inlet channel 60 can extend along the radial direction of the air distribution plate 100, the air flow smoothness of the air inlet channel 60 flowing to the plurality of air distribution cavities 20 is further ensured, the resistance and the gas loss are reduced, and the combustion effect of the fire cover is improved. Wherein the first groove 701 and the second groove 702 are disposed corresponding to each other, so that secondary air flowing from the outside to the inside flows partially into the outer secondary air passage 101 and the other part continues to flow inwardly to the inner secondary air passage 102, the arrangement of the first groove 701 and the second groove 702 can improve the secondary air replenishment amount of the inner secondary air passage 102 and the outer secondary air passage 101, particularly, the secondary air replenishment amount of the inner secondary air passage 102, and the combustion sufficiency of the inner fire cover.

The bottom wall of the middle air-dividing chamber 202 forms the first groove 701, so that a height difference exists between the inlet of the inner secondary air passage 102 and the inner secondary air passage 102, so that secondary air of the inner secondary air passage 102 can vertically enter the inner secondary air passage 102 from above and can enter the inner secondary air passage 102 from the side, the secondary air supplementing amount of the inner secondary air passage 102 is further improved, and the problem of difficult flame oxygen supplementing of the inner fire cover is solved.

Optionally, the gas distribution plate 100 includes a gas distribution plate body, an inner ring gas inlet ring 30 and an outer ring gas inlet ring 40, where the inner ring gas inlet ring 30 is convexly arranged at the lower end of the gas distribution plate body; the outer ring air inlet ring 40 is convexly arranged at the lower end of the air distribution plate body, and the outer ring air inlet ring 40 is sleeved at the outer side of the inner ring air inlet ring 30 at intervals. The inner ring air intake ring 30 encloses an inner ring air intake passage 301 having an inner ring air intake, and the inner ring air intake passage 301 extends in the thickness direction of the gas distribution plate 100 and penetrates the gas distribution plate body. The inner wall surface of the outer ring air intake ring 40 and the outer wall surface of the inner ring air intake ring 30 enclose an outer ring air intake passage 401. Wherein the inner ring air intake passage 301 communicates with the inner air chamber 201. The outer ring intake passage 401 communicates with the outer gas-dividing chamber 203. Alternatively, when the gas separation disc 100 defines the middle gas separation chamber 202 and the outer gas separation chamber 203, the outer ring gas inlet passage 401 communicates with the middle gas separation chamber 202 and the outer gas separation chamber 203. Wherein, the inner end of the air inlet channel 60 is communicated with the outlet of the outer ring air inlet channel 401, and the air inlet channel 60 is communicated with the outer air dividing cavity 203 and the middle air dividing cavity 202, so that the fuel gas in the outer ring air inlet channel 401 flows to the middle air dividing cavity 202 and the outer air dividing cavity 203 respectively through the air inlet channel 60.

In the embodiment of the disclosure, the lower ends of the inner ring air inlet ring 30 and the outer ring air inlet ring 40 can be matched with the burner so that the inner ring gas and the outer ring gas of the burner respectively flow into the corresponding inner ring air inlet channel 301 and the outer ring air inlet channel 401. Then, the gas is divided into three or more rings by the gas dividing disc 100 and the fire cover, so that multi-ring fire combustion of the burner is realized, the combustion area of the burner is increased, and the gas effect is improved.

Optionally, as shown in fig. 1, the air distribution plate 100 further includes a plurality of connection ribs 50, where the plurality of connection ribs 50 are sequentially connected between the outer sidewall of the inner ring air inlet ring 30 and the inner sidewall of the outer ring air inlet ring 40 at intervals along the circumferential direction of the inner ring air inlet ring 30, and outer ring air inlets 402 are formed between adjacent connection ribs 50; wherein, a plurality of tie bars 50 include first tie bar 501, and the diapire of first tie bar 501 sets up with the horizontal direction slope.

In the embodiment of the present disclosure, the connection ribs 50 are connected between the inner ring air intake ring 30 and the outer ring air intake ring 40, which can increase the strength of the air distribution plate 100 on the one hand. On the other hand, an outer ring air intake port 402 can be formed between the plurality of connection ribs 50 so that the outer ring air intake port 402 is spaced apart from the secondary air passage 10 to ensure proper operation of the burner. Because the furnace end is located the bottom of dividing the gas dish 100, consequently, the windward side of the gas in outer loop inlet channel 401 is located to the bottom of connecting rib 50, sets up the diapire slope of the first connecting rib 501 in a plurality of connecting ribs 50, can increase the flow area of outer loop inlet channel 401 like this, and then reduces the flow resistance of the gas that flows in outer loop inlet channel 401 for the burning of combustor is more abundant.

Alternatively, the bottom wall of the first connecting rib 501 is inclined upward in the outside-to-inside direction.

In the embodiment of the disclosure, the bottom wall of the first connecting rib 501 is inclined upwards along the direction from outside to inside, so that the fuel gas of the outer ring air inlet channel 401 can be guided, the top of the outer ring air inlet channel cannot be directly flushed, and the air can be respectively introduced from the vertical direction and the lateral direction, so that the air inlet resistance is reduced, the air inlet amount is improved, and the combustion of the burner is more sufficient.

Alternatively, the cross-sectional area of the bottom wall of the connecting bead 50 gradually decreases in the outside-in direction.

In the embodiment of the disclosure, the outer ring air inlet 402 is formed between the adjacent connecting ribs 50, and the cross-sectional area of the bottom wall of the connecting rib 50 gradually decreases along the direction from outside to inside, so that the opening area of the outer ring air inlet 402 gradually increases along the direction from outside to inside, thus being capable of improving the air inflow of the outer ring air inlet channel 401, further reducing the air inflow resistance and improving the combustion sufficiency.

Optionally, as shown in fig. 4, the plurality of connection ribs 50 further includes a second connection rib 502, the second connection rib 502 is provided with a mounting hole 5021 penetrating the second connection rib 502 along a thickness direction of the second connection rib 502, and the mounting hole 5021 is used for mounting a thermocouple; wherein the bottom wall of the second connecting rib 502 extends in the horizontal direction.

In the embodiment of the disclosure, at least one connecting rib 50 among the plurality of connecting ribs 50 is in a flat bottom structure, so that on one hand, the thermocouple is convenient to install, and on the other hand, the gas leakage phenomenon can be prevented when the gas distribution plate 100 slightly rotates, and the sealing effect is achieved.

Optionally, as shown in fig. 1, the air distribution plate 100 further includes a first rib 105, where the first rib 105 is convexly disposed above the air distribution plate body, the first rib 105 encloses a second secondary air channel 104, and the second secondary air channel 104 penetrates through the air distribution plate body along a thickness direction of the air distribution plate body, where the connecting rib 50 is located in the second secondary air channel 104, and an air inlet of the second secondary air channel 104 is formed by an outer wall surface of the connecting rib 50 and an inner wall surface of the first rib 105.

In the embodiment of the disclosure, the first ribs 105 are convexly arranged above the air distribution plate body, so that the height of the secondary air channel 10 in the vertical direction can be increased, the distance between the outlet of the secondary air channel 10 and the fire cover is further reduced, and the secondary air supplementing amount of the fire cover is improved. In addition, the first ribs 105 can improve the strength of the gas distribution plate 100, and avoid deformation of the gas distribution plate 100 after a long service time. Wherein, the connecting rib 50 is located in the secondary air channel 10, and the outer wall surface of the connecting rib 50 and the inner wall surface of the first protruding rib 105 form the air inlet of the second secondary air channel 104, so that the connecting rib 50 separates the air inlet of the second secondary air channel 104 at the bottom of the gas separation disc 100 from the outer ring air inlet channel 401, and the secondary air and the fuel gas are prevented from mixing.

Alternatively, as shown in fig. 1, the upper wall of the connection rib 50 is inclined upward in the outside-to-inside direction.

In the embodiment of the present disclosure, the upper wall surface of the connection rib 50 is inclined upward in the inside-out direction, so that the upper wall surface of the connection rib 50 can function to guide the flow of secondary air, and guide the flow of secondary air to the inner fire cover.

Alternatively, the first connecting rib 501 is inclined upward as a whole in the outside-to-inside direction.

In the embodiment of the disclosure, the first connecting rib 501 is integrally inclined, so that the first connecting rib 501 is convenient to process, and the processing convenience of the gas distribution plate 100 is improved.

Optionally, the upper wall surface of the second connecting rib 502 is inclined upward in the direction from outside to inside, and the lower wall surface of the second connecting rib 502 extends horizontally, so as to improve the sealing effect of the gas distribution plate 100 matched with other components.

Alternatively, the bottom wall of the first connecting rib 501 may have an angle with the horizontal direction in the range of greater than 0 ° and less than or equal to 80 °.

In this disclosed embodiment, the included angle between the bottom wall of the first connecting rib 501 and the horizontal direction is greater than 80 °, and the inclination angle of the bottom wall of the first connecting rib 501 is too large, which is not beneficial to guiding fuel gas to flow into the outer ring fuel gas channel from the side.

Preferably, the bottom wall of the first connecting rib 501 has an included angle with the horizontal direction of more than 10 ° and less than or equal to 60 °.

For example, the bottom wall of the first connecting rib 501 may have an angle of 5 °, 10 °, 15 °, 20 °, 30 °, 45 °, 50 °, 60 °, 70 °, 80 ° or the like with the horizontal direction.

It will be appreciated that the inclination angle between the bottom wall of the first connecting rib 501 and the horizontal direction may be set according to different types of burners, so that the opening sizes of the outer ring air inlet 402 and the second secondary air passage 104 may be adjusted to ensure the combustion efficiency of the burners.

Alternatively, when the distributor plate 100 includes the inner secondary air passage 102 and the outer secondary air passage 101, the inner secondary air passage 102 includes the second secondary air passage 104.

Optionally, the gas distribution plate 100 further includes a second rib 106, the second rib 106 is located at an outer side of the first rib 105, the second rib 106 is convexly disposed above the gas distribution plate body, the second rib 106 encloses the outer secondary air channel 101, and the outer secondary air channel 101 penetrates through the gas distribution plate body along a thickness direction of the gas distribution plate body. Wherein, the number of the second ribs 106 is the same as that of the first ribs 105 and corresponds to one. Thus, the height of the outer secondary air channel 101 can be increased, the distance between the outer secondary air channel 101 and the fire cover can be reduced, and the secondary air supplementing effect can be improved.

Optionally, a top wall 2011 is provided above the interior gas chamber 201, the top wall 2011 being configured with a plurality of through holes 2012.

In the embodiment of the disclosure, a top wall 2011 is disposed above the inner gas distribution chamber 201, a plurality of through holes 2012 of the top wall 2011 facilitate the gas flowing into the inner fire cover from the inner gas distribution chamber 201, and the plurality of through holes 2012 can improve the uniformity of the gas flowing into the inner fire cover. In addition, the strength of the center position of the gas distribution plate 100 is increased due to the arrangement of the top wall 2011, so that the gas distribution plate 100 is prevented from deforming in a high-temperature environment, and the risk of deformation of the gas distribution plate 100 is reduced.

Embodiments of the present disclosure also provide a burner comprising the gas distribution plate 100 of any of the embodiments described above.

The burner according to the embodiments of the present disclosure, because of including the gas distribution plate 100 according to any one of the embodiments, has the beneficial effects of the gas distribution plate 100 according to any one of the embodiments, and will not be described in detail herein.

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 separation disc is characterized in that,

The secondary air channel and the air distribution cavity are sequentially arranged along the radial direction of the air distribution disc, and the secondary air channel penetrates through the air distribution disc along the thickness direction of the air distribution disc;

Wherein, the bottom wall part of the air dividing cavity is upwards sunken to form a groove, and the groove corresponds to the secondary air channel so as to increase the secondary air quantity flowing to the secondary air channel.

2. The gas distribution plate according to claim 1, wherein,

The gas distribution plate is provided with a plurality of first secondary air channels at intervals along the circumferential direction, wherein grooves formed by a gas distribution cavity are the same as the first secondary air channels in number and correspond to the first secondary air channels one by one, and the secondary air channels comprise the first secondary air channels.

3. The gas distribution plate according to claim 1, wherein the number of the gas distribution chambers is plural, the plural gas distribution chambers are concentrically arranged, and the plural gas distribution chambers include:

an internal air cavity;

the middle air dividing cavity is arranged at the outer side of the inner air dividing cavity at intervals, a first groove is formed in the bottom wall of the middle air dividing cavity, and an inner secondary air channel is arranged between the middle air dividing cavity and the inner air dividing cavity;

The outer air distribution cavity is arranged at the outer side of the middle air distribution cavity at intervals, a second groove is formed in the bottom wall of the outer air distribution cavity, and an outer secondary air channel is arranged between the outer air distribution cavity and the middle air distribution cavity;

The inner secondary air channel and the outer secondary air channel are correspondingly arranged along the radial direction of the air distribution disc, and the first groove and the second groove are correspondingly arranged along the radial direction of the air distribution disc.

4. The gas distribution plate according to claim 1, wherein the gas distribution plate comprises:

a gas distribution plate body;

The inner ring air inlet ring is convexly arranged at the lower end of the air distribution disc body;

The outer ring air inlet ring is convexly arranged at the lower end of the air distribution disc body, and is sleeved at the outer side of the inner ring air inlet ring at intervals;

The connecting ribs are sequentially connected between the outer side wall of the inner ring air inlet ring and the inner side wall of the outer ring air inlet ring at intervals along the circumferential direction of the inner ring air inlet ring, and an outer ring air inlet is formed between the adjacent connecting ribs;

wherein, a plurality of connecting bars include first connecting bar, and the diapire of first connecting bar sets up for the horizontal direction slope.

5. The gas distribution plate according to claim 4, wherein,

The bottom wall of the first connecting rib is inclined upwards along the direction from outside to inside; and/or the number of the groups of groups,

The cross-sectional area of the bottom wall of the connecting rib gradually decreases in the direction from outside to inside.

6. The gas distribution plate according to claim 4, wherein,

The plurality of connecting ribs further comprise second connecting ribs, and the second connecting ribs are provided with mounting holes penetrating through the second connecting ribs along the thickness direction of the second connecting ribs, and the mounting holes are used for mounting thermocouples;

wherein, the diapire of second tie bar extends along the horizontal direction.

7. The gas distribution plate of claim 4, further comprising:

The first convex rib is arranged above the gas distribution plate body in a protruding mode, a second secondary air channel is enclosed by the first convex rib, the second secondary air channel penetrates through the gas distribution plate body along the thickness direction of the gas distribution plate body, and the secondary air channel comprises the second secondary air channel;

the connecting ribs are located in the second secondary air channel, and the outer wall surfaces of the connecting ribs and the inner wall surfaces of the first protruding ribs form air inlets of the second secondary air channel.

8. The gas distribution plate according to claim 4, wherein,

The upper wall of the connecting rib is upward inclined along the direction from outside to inside.

9. A gas distribution plate according to any one of claims 3 to 8,

The upper part of the internal gas distribution cavity is provided with a top wall which is provided with a plurality of through holes.

10. A burner comprising a gas distribution plate according to any one of claims 1 to 9.