Distributor and burner

Abstract

The utility model belongs to the technical field of combustor, specifically disclose a kind of fire divider and combustor. Fire divider includes base and fire divider upper cover. Base is annular, and first annular cavity with upper end opening is arranged on base;Fire divider upper cover is provided with outer ring fire hole, second annular cavity, fire leakage prevention structure and turbulence structure, second annular cavity is lower end opening structure, outer ring fire hole is communicated with second annular cavity, fire divider upper cover is assembled on base and first annular cavity and second annular cavity form mixing chamber jointly, fire leakage prevention structure extends into first annular cavity and with the inner wall of first annular cavity abuts, along the radial projection of fire divider, the projection of fire leakage prevention structure covers the projection of the connecting place of base and fire divider upper cover;Turbulence structure is arranged in fire leakage prevention structure and can turbulence to the gas in mixing chamber. The utility model makes that gas and air in mixing chamber are more uniform, and can avoid the cooperation surface between fire divider upper cover and base and take place fire leakage.

Description

Technical Field

[0001] This utility model relates to the field of burner technology, and in particular to a flame distributor and a burner. Background Technology

[0002] The burner is the core component of a gas stove, used to mix and ignite gas and air to produce a stable and efficient flame for heating cookware. The flame distributor is another key component of the burner, used to evenly distribute the gas-air mixture to the outer ring of the burner's flame holes to ensure stable and complete combustion of the outer ring flame.

[0003] In the prior art, a flame spreader generally includes a flame spreader cover and a base. The flame spreader cover is placed on the base, and the two enclose a mixing chamber. To prevent flame leakage at the mating surface between the flame spreader cover and the base, some flame spreader covers are generally provided with a downwardly extending flange. The flange extends into the base and abuts against the inner wall of the base's inner cavity to prevent flame leakage between the contact surfaces of the flame spreader cover and the base.

[0004] However, when the above-mentioned burner is in use, if there is a large amount of gas entering the mixing chamber of the burner, a small amount of gas may enter from the lower end of the flange into the gap between the flange and the inner wall of the base cavity, and then overflow from the gap to the outside of the burner, ultimately causing the burner to still have flame leakage. In addition, when there is a large amount of gas entering the mixing chamber of the burner, the uniformity of the mixing of gas and air in the gas is poor, which affects the combustion effect of the burner. Utility Model Content

[0005] One of the technical problems solved by this utility model is to provide a flame distributor that can effectively solve the technical problem of flame leakage in existing flame distributors and make the gas and air mix more evenly.

[0006] The second technical problem solved by this utility model is to provide a burner that can effectively solve the technical problem of flame leakage in the burner distributor in the prior art, and can make the gas and air in the burner distributor mix more evenly.

[0007] The first technical problem mentioned above is solved by the following technical solution:

[0008] Fire distributor, including:

[0009] The base is ring-shaped, and the base is provided with a first annular cavity with an opening at the top.

[0010] The ignition distributor cover has an outer ring flame hole, a second annular cavity, a leak-proof structure, and a turbulence-disrupting structure. The second annular cavity has an open bottom. The outer ring flame hole communicates with the second annular cavity. The ignition distributor cover is mounted on the base, and the first annular cavity and the second annular cavity together form a mixing chamber. The leak-proof structure extends into the first annular cavity and abuts against the inner wall of the first annular cavity. The radial projection of the leak-proof structure covers the projection of the connection between the base and the ignition distributor cover. The turbulence-disrupting structure is disposed on the leak-proof structure and can turbulent the gas in the mixing chamber.

[0011] The fire distributor described in this utility model has the following advantages compared with the prior art:

[0012] In this flame spreader, the flame-proof structure of the flame spreader cover extends into the first annular cavity and abuts against the inner wall of the first annular cavity. Along the radial projection of the flame spreader, the projection of the flame-proof structure covers the projection of the connection between the base and the flame spreader cover, that is, the flame-proof structure can fully block the connection between the base and the flame spreader cover. At the same time, the flame spreader cover is assembled on the base. With this arrangement, the contact surface between the flame spreader cover and the base is not a single horizontal plane (this horizontal plane is the upper surface of the base). There is also an abutting surface between the two at the inner wall of the first annular cavity. That is, the contact area between the two is increased and there is a bent part. The existence of the bent part can initially prevent flame leakage between the mating surfaces of the flame spreader cover and the base, ensuring the user's experience.

[0013] Meanwhile, a turbulence-inducing structure is installed on the leak-proof structure. The turbulence-inducing structure is located in the mixing chamber along with the leak-proof structure. The turbulence-inducing structure can turbulent the gas in the mixing chamber, thereby making the gas and air entering the mixing chamber mix more evenly. When the mixed gas in the mixing chamber moves towards the leak-proof structure and has a tendency to overflow, the turbulence-inducing structure on the leak-proof structure will turbulent the gas moving towards the leak-proof structure, change the airflow direction, thereby preventing gas overflow and ultimately preventing the flame distributor from leaking.

[0014] In one embodiment, the fire-proof structure includes:

[0015] The inner ring fireproof ring is arranged along the inner circumference of the second annular cavity and extends vertically, and can abut against the side wall of the first annular cavity near the center of the fire distributor.

[0016] The outer ring is a fire-prevention ring that is arranged circumferentially along the outer ring of the second annular cavity and extends vertically, and can abut against the side wall of the first annular cavity away from the center of the fire distributor.

[0017] In one embodiment, the turbulence structure includes a first turbulence section disposed at the lower end of the inner ring anti-leakage ring body. The first turbulence section includes a first turbulence ramp, which is located on the side wall of the inner ring anti-leakage ring body away from the center of the flame distributor. Along the top-to-bottom direction, the distance between the first turbulence ramp and the side wall of the first annular cavity near the center of the flame distributor gradually increases.

[0018] In one embodiment, the turbulence structure includes a second turbulence section disposed at the lower end of the outer ring anti-leakage ring body. The second turbulence section includes a second turbulence ramp, which is located on the side wall of the outer ring anti-leakage ring body near the center of the flame distributor. Along the top-to-bottom direction, the distance between the second turbulence ramp and the side wall of the first annular cavity away from the center of the flame distributor gradually increases.

[0019] In one embodiment, one of the base and the fire distributor cover is provided with a positioning insertion protrusion, and the other is provided with a positioning groove that mates with the positioning insertion protrusion.

[0020] In one embodiment, the base is provided with an air inlet communicating with the first annular cavity, and an air baffle is provided inside the first annular cavity. The air baffle is disposed at a distance from the air inlet, and a vent hole is provided on the air baffle.

[0021] In one embodiment, the cross-sectional area of ​​the vent gradually decreases from bottom to top.

[0022] In one embodiment, the wall thickness of the outer annular wall of the fire distributor cover gradually decreases from top to bottom.

[0023] In one embodiment, the base is a one-piece molded structure.

[0024] The second technical problem mentioned above is solved by the following technical solution:

[0025] The burner includes the aforementioned flame distributor.

[0026] The burner described in this utility model has the following advantages compared with the prior art:

[0027] The burner includes the aforementioned flame spreader. In the burner, the flame spreader cover's anti-leakage structure extends into the first annular cavity and abuts against the inner wall of the first annular cavity. Along the radial projection of the flame spreader, the projection of the anti-leakage structure covers the projection of the connection between the base and the flame spreader cover, meaning the anti-leakage structure can fully shield the connection between the base and the flame spreader cover. Simultaneously, the flame spreader cover is mounted on the base. This arrangement ensures that the contact surface between the flame spreader cover and the base is not a single horizontal plane (this horizontal plane is the upper surface of the base). There is also an abutment surface between them at the inner wall of the first annular cavity. This means the contact area is larger and there is a bent portion. The presence of the bent portion can initially prevent flame leakage between the mating surfaces of the flame spreader cover and the base, ensuring a better user experience.

[0028] Meanwhile, a turbulence-inducing structure is installed on the leak-proof structure. The turbulence-inducing structure is located in the mixing chamber along with the leak-proof structure. The turbulence-inducing structure can turbulent the gas in the mixing chamber, thereby making the gas and air entering the mixing chamber mix more evenly. When the mixed gas in the mixing chamber moves towards the leak-proof structure and has a tendency to overflow, the turbulence-inducing structure on the leak-proof structure will turbulent the gas moving towards the leak-proof structure, change the airflow direction, thereby preventing gas overflow and ultimately preventing the flame distributor from leaking. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the fire distributor provided in an embodiment of the present utility model;

[0030] Figure 2 This is an exploded view of the fire distributor provided in an embodiment of the present invention;

[0031] Figure 3 A cross-sectional structural schematic diagram of the fire distributor provided in an embodiment of this utility model;

[0032] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0033] Figure 5 A schematic diagram of the structure of the fire distributor cover provided in an embodiment of this utility model;

[0034] Figure 6 This is a schematic diagram showing the baffle plate not installed on the base according to an embodiment of the present invention.

[0035] Label Explanation:

[0036] 1. Base; 11. First annular cavity; 12. Air inlet;

[0037] 2. Flame distributor cover; 21. Outer ring flame hole; 22. Second annular cavity; 23. Leakage prevention structure; 231. Inner ring leak-proof ring body; 232. Outer ring leak-proof ring body; 24. Turbulence structure; 241. First turbulence section; 2411. First turbulence ramp; 242. Second turbulence section; 2421. Second turbulence ramp;

[0038] 3. Air baffle; 31. Vent hole;

[0039] 4. Mixing chamber. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0041] In the description of this application, it should be understood that the terms "center", "upper", "lower", "vertical", "horizontal", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0042] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0043] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0044] This embodiment provides a burner.

[0045] Specifically, this burner is used in gas stoves. Gas stoves are the core cooking equipment in modern kitchens, capable of direct-fire heating using fuels such as liquefied petroleum gas, manufactured gas, or natural gas to meet users' cooking needs.

[0046] The burner is one of the core components of a gas stove. It is responsible for mixing gas and air and igniting them to form a stable flame, providing heat for cooking.

[0047] More specifically, in this embodiment, the burner includes a burner head, a flame distributor, and an injector tube. The burner head is used to support the flame distributor; the injector tube is connected to the flame distributor and is used to introduce a mixture of fuel gas and air into the flame distributor.

[0048] The burner includes an inner ring burner and a secondary burner. The inner ring burner and the secondary burner form a double-ring structure, enabling tiered adjustment of the burner's flame intensity. The inner ring burner is located at the center of the burner and has inner ring flame holes. The secondary burners surround the inner ring burner.

[0049] This embodiment provides a detailed description of the fire distributor.

[0050] Specifically, see Figures 1-4 In this embodiment, the fire distributor includes a base 1 and a fire distributor cover 2.

[0051] The base 1 is ring-shaped and has a first annular cavity 11 with an opening at the top.

[0052] See Figures 4-6 ,

[0053] The igniter cover 2 is provided with an outer annular flame hole 21, a second annular cavity 22, a leak-proof structure 23, and a turbulence-disrupting structure 24. The second annular cavity 22 has an open bottom end, and the outer annular flame hole 21 communicates with the second annular cavity 22. The igniter cover 2 is assembled on the base 1, and the first annular cavity 11 and the second annular cavity 22 together form a mixing chamber 4. The leak-proof structure 23 extends into the first annular cavity 11 and abuts against the inner wall of the first annular cavity 11. Along the radial projection of the igniter, the projection of the leak-proof structure 23 covers the projection of the connection between the base 1 and the igniter cover 2. The turbulence-disrupting structure 24 is provided on the leak-proof structure 23 and can turbulentize the gas in the mixing chamber 4.

[0054] Optionally, the fire distributor cover 2 overlaps the upper surface of the base 1.

[0055] The igniter provided in this embodiment has an upper cover 2 that overlaps with the base 1. Thus, when the user needs to clean the stains that have entered the mixing chamber 4 from the outer ring ignition hole 21, the upper cover 2 of the igniter can be removed from the base 1. At this time, the user can clean the stains that are adhering to the first annular cavity 11 or the second annular cavity 22. After cleaning, the upper cover 2 of the igniter can be reattached to the base 1.

[0056] During use, the mixed gas in the mixing chamber 4 can move to the outer ring flame hole 21 and be ignited. At this time, due to the presence of the anti-leakage structure 23, the anti-leakage structure 23 extends into the first annular cavity 11 and abuts against the inner wall of the first annular cavity 11. The projection of the anti-leakage structure 23 covers the projection of the connection between the base 1 and the upper cover 2 of the flame distributor. At the same time, the upper cover 2 of the flame distributor overlaps the upper surface of the base 1, and there is contact between the upper cover 2 of the flame distributor and the upper surface of the base 1. With this setting, the contact surface between the upper cover 2 of the flame distributor and the base 1 is not a single horizontal plane (the horizontal plane is the upper surface of the base 1). There is also an abutment surface between the two at the inner wall of the first annular cavity 11. That is, the contact area between the two is increased and there is a bent part. The existence of the bent part can prevent flame leakage between the mating surfaces of the upper cover 2 of the flame distributor and the base 1, ensuring the user's experience.

[0057] Meanwhile, a turbulence structure 24 is provided on the fire-proof structure 23. The turbulence structure 24 is located in the mixing chamber 4 together with the fire-proof structure 23. The turbulence structure 24 can turbulent the gas in the mixing chamber 4. When the mixed gas in the mixing chamber 4 moves toward the fire-proof structure 23 and has an overflow tendency, due to the presence of the turbulence structure 24 on the fire-proof structure 23, the turbulence structure 24 will turbulent the gas moving toward the fire-proof structure 23, change the airflow direction, thereby preventing the gas from overflowing and ultimately preventing the flame distributor from leaking.

[0058] Optionally, in one embodiment, the base 1 is a one-piece molded structure. This design makes the base 1 simple in structure, highly efficient in production, and low in cost.

[0059] Alternatively, the base 1 may be made of metal or alloy, such as an aluminum base. The aluminum base has a smooth surface, is easy to clean, and has stable performance.

[0060] Optionally, in one embodiment, one of the base 1 and the fire distributor cover 2 is provided with a positioning insertion protrusion, and the other is provided with a positioning groove that mates with the positioning insertion protrusion.

[0061] The positioning protrusions and positioning grooves ensure the accuracy of the placement of the distributor cover 2 on the base 1.

[0062] Further, see Figures 4-6 In one embodiment, the fire-proof structure 23 includes an inner fire-proof ring 231 and an outer fire-proof ring 232.

[0063] The inner ring fireproof ring 231 is arranged along the inner circumference of the second annular cavity 22 and extends vertically, and can abut against the side wall of the first annular cavity 11 near the center of the fire distributor.

[0064] The outer ring fireproof ring 232 is arranged circumferentially along the outer ring of the second annular cavity 22 and extends vertically, and can abut against the side wall of the first annular cavity 11 away from the center of the fire distributor.

[0065] The inner ring anti-leakage ring 231 abuts against the side wall of the first annular cavity 11 near the center of the flame spreader. This arrangement increases the contact area between the inner ring of the flame spreader cover 2 and the inner ring of the base 1, and also creates a bent portion at the contact area between the inner ring of the flame spreader cover 2 and the inner ring of the base 1. This prevents flame leakage from occurring at the contact area between the inner ring of the flame spreader cover 2 and the inner ring of the base 1 when the flame spreader cover 2 overlaps the base 1.

[0066] Similarly, the outer ring anti-leakage ring 232 abuts against the side wall of the first annular cavity 11 away from the center of the flame spreader. This arrangement increases the size of the contact surface between the outer ring of the flame spreader cover 2 and the outer ring of the base 1, and also creates a bent portion at the contact surface between the outer ring of the flame spreader cover 2 and the outer ring of the base 1. This prevents flame leakage from occurring at the contact surface between the outer ring of the flame spreader cover 2 and the outer ring of the base 1 when the flame spreader cover 2 overlaps the base 1.

[0067] The inner ring fireproof ring 231 is arranged along the inner circumference of the second annular cavity 22 and extends in the vertical direction. This arrangement can fully increase the contact area between the inner ring fireproof ring 231 and the side wall of the first annular cavity 11 of the inner ring fireproof ring 231 near the center of the fire distributor, thus fully ensuring the fireproof effect.

[0068] The outer ring fireproof ring 232 is arranged around the outer circumference of the second annular cavity 22 and extends vertically. This arrangement can fully increase the contact area between the outer ring fireproof ring 232 and the side wall of the first annular cavity 11 away from the center of the fire distributor, thus fully ensuring the fireproof effect.

[0069] Specifically, with Figure 4 Taking the perspective shown as an example, under normal circumstances, the mixed gas in the mixing chamber 4 flows to the outer ring flame hole 21 and burns there. If backfire occurs at the outer ring flame hole 21, the flame will move downwards and towards the gap between the connection between the burner cover 2 and the base 1. However, the inner ring anti-leakage ring 231 at the inner ring connection between the burner cover 2 and the base 1 can prevent the flame from continuing to move downwards. At the outer ring connection between the burner cover 2 and the base 1, the outer ring anti-leakage ring 232 can prevent the flame from continuing to move downwards, thereby reducing the flame moving towards the connection between the burner cover 2 and the base 1.

[0070] In one embodiment, the turbulence structure 24 includes a first turbulence portion 241, which is disposed at the lower end of the inner ring anti-leakage ring body 231. The first turbulence portion 241 includes a first turbulence inclined surface 2411, which is located on the side wall of the inner ring anti-leakage ring body 231 away from the center of the flame distributor. Along the top-to-bottom direction, the distance between the first turbulence inclined surface 2411 and the side wall of the first annular cavity 11 near the center of the flame distributor gradually increases.

[0071] By setting the first turbulence ramp 2411, the gas moving to the lower end of the inner ring anti-leakage ring 231 is turbulent, making the gas and air mix more evenly, and changing the flow direction of the gas moving to this point to prevent the gas from overflowing from here, thereby achieving the effect of preventing gas and fire leakage.

[0072] In one embodiment, the turbulence structure 24 includes a second turbulence portion 242, which is disposed at the lower end of the outer ring fireproof ring 232. The second turbulence portion 242 includes a second turbulence ramp 2421, which is located on the side wall of the outer ring fireproof ring 232 near the center of the fire distributor. Along the top-to-bottom direction, the distance between the second turbulence ramp 2421 and the side wall of the first annular cavity 11 away from the center of the fire distributor gradually increases.

[0073] By setting a second turbulence ramp 2421, the gas moving to the lower end of the outer ring fire prevention ring 232 is turbulent, making the gas and air mix more evenly. At the same time, the flow direction of the gas moving to this point is changed to prevent the gas from overflowing from here, thereby achieving the effect of preventing gas and fire leakage.

[0074] Optionally, in some embodiments, the outer ring flame hole 21 is a conical hole, and the flow cross-sectional area of ​​the outer ring flame hole 21 gradually increases along the airflow direction; this setting can ensure the normal combustion of the flame at the outer ring flame hole 21 on the one hand, and on the other hand, the outer ring flame hole 21 of this shape can play a certain role in preventing backfire, thereby helping to avoid flame leakage at the connection between the flame distributor cover 2 and the base 1.

[0075] Further optional, see Figure 3 and Figure 4 Along the top-to-bottom direction, the wall thickness of the outer ring wall of the flame spreader cover 2 gradually decreases. This design results in the outer ring wall of the flame spreader cover 2 having a structure that is narrower at the bottom and wider at the top. The central axis of the outer ring flame hole 21 is inclined relative to the horizontal plane, which effectively increases the axial dimension of the outer ring flame hole 21, preventing backfire during flame combustion. Ultimately, the outer ring flame hole 21 helps to prevent flame leakage at the connection between the flame spreader cover 2 and the base 1.

[0076] Optionally, when designing the outer ring wall of the fire distributor cover 2, the outer ring wall of the fire distributor cover 2 can be designed to extend in the vertical direction, and the inner ring wall of the fire distributor cover 2 can be designed to be inclined at 12° relative to the vertical plane.

[0077] For example, with Figure 4 Taking the illustrated perspective as an example, in this embodiment, the dimension 'a' of the contact surface between the upper surface of the outer ring of the burner cover 2 and the base 1 is not less than a first predetermined dimension; the dimension 'b' of the contact surface between the inner ring anti-leakage ring 231 and the inner wall of the first annular cavity 11 is not less than a second predetermined dimension; the dimension 'c' of the contact surface between the outer ring anti-leakage ring 232 and the inner wall of the first annular cavity 11 is not less than a third predetermined dimension; and the dimension 'd' of the contact surface between the upper surface of the inner ring of the burner cover 2 and the base 1 is not less than a fourth predetermined dimension. This is to sufficiently prevent fire leakage.

[0078] Optionally, in this embodiment, the first and fourth preset dimensions are both 2mm; the second and third preset dimensions are both 4.5mm. The first, second, third, and fourth preset dimensions can also be set to other values ​​as needed, as long as they can sufficiently prevent fire leakage.

[0079] Furthermore, in one embodiment, see [link to relevant documentation]. Figure 2 and Figure 6 The base 1 is provided with an air inlet 12 that communicates with the first annular cavity 11. The first annular cavity 11 is provided with an air baffle 3. The air baffle 3 is provided with an air inlet 12 at a distance from each other. The air baffle 3 is provided with a vent hole 31.

[0080] Specifically, the baffle plate 3 and the air inlet 12 are arranged at intervals, one above the other.

[0081] The outer ring ejector tube of the burner is connected to the air inlet 12, and the mixed gas is introduced into the mixing chamber 4 through the air inlet 12.

[0082] To prevent the gas entering through the air inlet 12 from impacting the flame at the outer ring flame hole 21 near the air inlet 12 and causing the flame to lift off, a baffle plate 3 is provided, thereby ensuring more complete combustion of the gas mixture at the outer ring flame hole 21 near the air inlet 12. The vent hole 31 is provided to prevent the baffle plate 3 from creating excessive resistance to the gas mixture entering the mixing chamber 4.

[0083] Preferably, in one embodiment, the cross-sectional area of ​​the vent 31 gradually decreases from bottom to top. That is, the vent 31 is a tapered hole with a larger bottom and a smaller top. In this way, the airflow passing through the vent 31 can be accelerated, and the presence of the baffle plate 3 can prevent insufficient gas supply to the outer ring flame hole 21 near the air inlet 12.

[0084] Optionally, in some embodiments, the number of vent holes 31 on the baffle plate 3 is multiple, and the multiple vent holes 31 are arranged in an array.

[0085] Optionally, in this embodiment, the minimum flow cross-sectional area of ​​the vent 31 is 2mm-3mm; for example, the minimum flow cross-sectional area of ​​the vent 31 is 2mm, 2.2mm, 2.4mm, 2.6mm, 2.8mm, or 3mm. Of course, in other embodiments, the size of the vent 31 can also be set to other values ​​as needed, and no further restrictions are imposed here.

[0086] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0087] The specific embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A flame distributor, characterized in that, include: The base (1) is ring-shaped, and the base (1) is provided with a first annular cavity (11) with an opening at the upper end; The ignition distributor cover (2) is provided with an outer ring flame hole (21), a second annular cavity (22), a leak-proof structure (23), and a turbulence structure (24). The second annular cavity (22) has a lower opening structure. The outer ring flame hole (21) communicates with the second annular cavity (22). The ignition distributor cover (2) is assembled on the base (1), and the first annular cavity (11) and the second annular cavity (22) together form a mixing cavity (4). The leak-proof structure (23) extends into the first annular cavity (11) and abuts against the inner wall of the first annular cavity (11). The projection of the leak-proof structure (23) along the radial direction of the ignition distributor covers the projection of the connection between the base (1) and the ignition distributor cover (2). The turbulence structure (24) is provided on the leak-proof structure (23) and can turbulent the gas in the mixing cavity (4).

2. The fire distributor according to claim 1, characterized in that, The fire-proof structure (23) includes: The inner ring fireproof ring (231) is arranged along the inner circumference of the second annular cavity (22) and extends in the vertical direction, and can abut against the side wall of the first annular cavity (11) near the center of the fire distributor. The outer ring fireproof ring (232) is arranged circumferentially along the outer ring of the second annular cavity (22) and extends vertically, and can abut against the side wall of the first annular cavity (11) away from the center of the fire distributor.

3. The fire distributor according to claim 2, characterized in that, The turbulence structure (24) includes a first turbulence part (241), which is disposed at the lower end of the inner ring fireproof ring (231). The first turbulence part (241) includes a first turbulence inclined surface (2411), which is located on the side wall of the inner ring fireproof ring (231) away from the center of the fire distributor. Along the top-to-bottom direction, the distance between the first turbulence inclined surface (2411) and the side wall of the first annular cavity (11) near the center of the fire distributor gradually increases.

4. The fire distributor according to claim 2, characterized in that, The turbulence structure (24) includes a second turbulence section (242), which is disposed at the lower end of the outer ring fireproof ring (232). The second turbulence section (242) includes a second turbulence ramp (2421), which is located on the side wall of the outer ring fireproof ring (232) near the center of the fire distributor. Along the top-to-bottom direction, the distance between the second turbulence ramp (2421) and the side wall of the first annular cavity (11) away from the center of the fire distributor gradually increases.

5. The fire distributor according to claim 1, characterized in that, One of the base (1) and the fire distributor cover (2) is provided with a positioning insertion protrusion, and the other is provided with a positioning groove that cooperates with the positioning insertion protrusion.

6. The fire distributor according to claim 1, characterized in that, The base (1) is provided with an air inlet (12) communicating with the first annular cavity (11). An air baffle (3) is provided in the first annular cavity (11). The air baffle (3) is provided at a distance from the air inlet (12). The air baffle (3) is provided with a vent hole (31).

7. The fire distributor according to claim 6, characterized in that, Along the direction from bottom to top, the cross-sectional area of ​​the vent (31) gradually decreases.

8. The fire distributor according to claim 1, characterized in that, Along the top-to-bottom direction, the wall thickness of the outer ring wall of the fire distributor cover (2) gradually decreases.

9. The fire distributor according to any one of claims 1-8, characterized in that, The base (1) is a one-piece molded structure.

10. A burner, characterized in that, Including the fire spreader as described in any one of claims 1-9.

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