Burner, burner and gas stove

Abstract

The utility model discloses a furnace end, a combustor and a gas stove. The furnace end comprises an inner ring cavity, an outer ring cavity and a dirt receiving plate, the outer ring cavity surrounds the inner ring cavity, the dirt receiving plate is arranged between the inner ring cavity and the outer ring cavity, the dirt receiving plate, the outer ring cavity and the inner ring cavity define a concave cavity which is opened upwards, the outer ring cavity is provided with an air flow channel, the air flow channel is provided with a first ventilation opening, a second ventilation opening and a third ventilation opening, and the first ventilation opening, the second ventilation opening and the third ventilation opening are communicated through the air flow channel. The first air vent is communicated with the concave cavity, the second air vent is suitable for being communicated with the internal space of the gas stove, and the third air vent is suitable for being communicated with the external space of the gas stove. Some secondary air can enter the air flow channel from the third vent hole from the external space of the gas stove and then is discharged to the concave cavity through the first vent hole, and some secondary air can enter the air flow channel from the second vent hole from the internal space of the gas stove and then is discharged to the concave cavity through the first vent hole. And the supplementary efficiency of secondary air is enhanced, and combustion of fuel gas is facilitated.

Description

Technical Field

[0001] This application relates to the technical field of gas stoves, and particularly relates to a burner head, a burner, and a gas stove. Background Art

[0002] The burner includes a burner head with an inner ring cavity and an outer ring cavity surrounding the inner ring cavity. The inner ring cavity is provided with an inner ring burner cap, and the outer ring cavity is provided with an outer ring burner cap. In order to supplement secondary air to the flame formed by the inner ring burner cap, an air flow channel is provided on the burner head, and the secondary air is supplemented along the air flow channel to between the inner ring cavity and the outer ring cavity. The amount of secondary air supplemented in this way still needs to be improved. Summary of the Utility Model

[0003] This application aims to solve at least one of the technical problems in the related art to some extent. For this purpose, this application provides a burner head.

[0004] To achieve the above object, this application discloses a burner head, which includes:

[0005] An inner ring cavity;

[0006] An outer ring cavity surrounding the inner ring cavity; and

[0007] A sewage receiving plate disposed between the inner ring cavity and the outer ring cavity, and the sewage receiving plate, the outer ring cavity, and the inner ring cavity enclose an upwardly open concave cavity;

[0008] Wherein, the outer ring cavity is provided with an air flow channel, and the air flow channel has a first ventilation port, a second ventilation port, and a third ventilation port. The first ventilation port is communicated with the concave cavity, the second ventilation port is adapted to be communicated with the internal space of the gas stove, and the third ventilation port is adapted to be communicated with the external space of the gas stove.

[0009] In some embodiments of this application, the air flow channel extends along the radial direction of the burner head;

[0010] And / or, the first ventilation port is disposed on the inner side of the outer ring cavity, the second ventilation port is disposed on the inner side of the outer ring cavity, and the third ventilation port is disposed on the outer side of the outer ring cavity.

[0011] In some embodiments of this application, the first ventilation port is disposed on the upper side of the sewage receiving plate, and the second ventilation port is disposed on the lower side of the sewage receiving plate.

[0012] In some embodiments of this application, the second ventilation port is disposed between the sewage receiving plate and the bottom wall of the air flow channel. When projected in the vertical downward direction, the projection of the edge of the sewage receiving plate projects onto the bottom wall of the air flow channel.

[0013] In some embodiments of the present application, the bottom wall of the air flow channel has a convex portion protruding upward, and along the direction from top to bottom, the dirt receiving plate covers the convex portion.

[0014] In some embodiments of the present application, the bottom wall of the air flow channel is inclined downward from the second ventilation opening and towards the outside of the outer ring cavity.

[0015] In some embodiments of the present application, the outer ring cavity includes a plurality of the air flow channels, and the plurality of air flow channels are arranged at intervals along the circumferential direction of the outer ring cavity.

[0016] In some embodiments of the present application, the burner head is an integrally formed part.

[0017] A second aspect of the present application discloses a burner, which includes a burner cap and the above-mentioned burner head. The burner cap includes an inner ring burner cap and an outer ring burner cap. The inner ring burner cap is arranged in the inner ring cavity, and the outer ring burner cap is arranged in the outer ring cavity.

[0018] A third aspect of the present application discloses a gas stove, which includes the above-mentioned burner.

[0019] Through the technical solution of the present application by providing the first ventilation opening, the second ventilation opening and the third ventilation opening, some secondary air can enter the air flow channel from the external space of the gas stove through the third ventilation opening, and then be discharged to the concave cavity through the first ventilation opening. Some secondary air can enter the air flow channel from the internal space of the gas stove through the second ventilation opening, and then be discharged to the concave cavity through the first ventilation opening. By setting like this, the supplementary efficiency of the secondary air is enhanced, which is beneficial to the combustion of the gas. And, since the second ventilation opening communicates with the internal space of the gas stove, when the secondary air is discharged from the internal space of the gas stove through the second ventilation opening, it can take away the heat in the internal space of the gas stove, inhibit the temperature rise of the gas stove. At the same time, the secondary air discharged from the internal space of the gas stove can be preheated to avoid too large temperature difference, and further improve the combustion effect of the gas.

[0020] Other advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other designs can also be obtained based on the structures shown in these drawings.

[0022] Figure 1Schematic diagram of a burner head in some embodiments;

[0023] Figure 2 Schematic diagram of a burner head in some embodiments (viewpoint is different from Figure 2 );

[0024] Figure 3 Cross-sectional view of a burner head in some embodiments;

[0025] Figure 4 For Figure 3 Partial enlarged view of the structure shown;

[0026] Figure 5 For Figure 3 Partial enlarged view of the structure shown (showing the secondary air flow direction).

[0027] Explanation of the reference numerals in the drawings:

[0028] Burner head 1000, inner ring cavity 1100, inner mixing cavity 1101, outer ring cavity 1200, outer mixing cavity 1201, air flow channel 1210, first ventilation port 1211, second ventilation port 1212, third ventilation port 1213, bottom wall 1214, convex portion 1215, dirt receiving plate 1300, concave cavity 1400.

[0029] The realization, functional features and advantages of the purpose of this application will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0031] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0032] In this application, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] In addition, in this application, descriptions such as "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0034] A first aspect of this application provides a burner 1000, in combination with Figures 1 to 5 As shown, in some embodiments, the burner 1000 includes an inner ring cavity 1100, an outer ring cavity 1200, and a dirt receiving plate 1300. The outer ring cavity 1200 surrounds the inner ring cavity 1100, and the dirt receiving plate 1300 is disposed between the inner ring cavity 1100 and the outer ring cavity 1200. The outer ring cavity 1200, the inner ring cavity 1100, and the dirt receiving plate 1300 together define a concave cavity 1400, which is open upward. Moreover, the outer ring cavity 1200 is provided with an air flow channel 1210, and the air flow channel 1210 includes a first ventilation port 1211, a second ventilation port 1212, and a third ventilation port 1213. The first ventilation port 1211 communicates with the concave cavity 1400, the second ventilation port 1212 communicates with the internal space of the gas stove, and the third ventilation port 1213 communicates with the external space of the gas stove.

[0035] By providing the first vent 1211, the second vent 1212, and the third vent 1213, some secondary air can enter the air flow channel 1210 from the external space of the gas stove through the third vent 1213, and then be discharged to the concave cavity 1400 through the first vent 1211. Some secondary air can enter the air flow channel 1210 from the internal space of the gas stove through the second vent 1212, and then be discharged to the concave cavity 1400 through the first vent 1211. By such an arrangement, the replenishment efficiency and replenishment amount of the secondary air are enhanced, which is more conducive to the combustion of the gas. Moreover, since the second vent 1212 communicates with the internal space of the gas stove, when the secondary air is discharged from the internal space of the gas stove through the second vent 1212, it can carry away the heat in the internal space of the gas stove, inhibiting the temperature rise of the gas stove. At the same time, the secondary air discharged from the internal space of the gas stove can be preheated, avoiding excessive temperature difference and further improving the combustion effect of the gas.

[0036] The burner head 1000 will be described in detail below in conjunction with the gas stove. The gas stove includes a housing and a burner. The housing includes a bottom shell and a panel. The panel covers the bottom shell to form an accommodation space therebetween. The burner includes the burner head 1000 and a burner cap disposed on the burner head 1000. A part of the burner head 1000 is disposed in the accommodation space, and another part of the burner head 1000 is exposed above the panel. It can be understood that the above-described gas stove structure is for illustrative purposes only and does not limit the structure of the gas stove. Other structural arrangements may also be adopted and will not be elaborated one by one.

[0037] The burner head 1000 includes a dirt-receiving plate 1300, an inner ring cavity 1100, and an outer ring cavity 1200. The outer ring cavity 1200 surrounds the inner ring cavity 1100. The dirt-receiving plate 1300 is disposed between the inner ring cavity 1100 and the outer ring cavity 1200. The dirt-receiving plate 1300, the inner ring cavity 1100, and the outer ring cavity 1200 enclose a concave cavity 1400, which opens upward. In this article, the orientation is based on the gas stove being in the installation environment. The side of the gas stove close to the ground is the lower (bottom), and the side away from the ground is the upper (top). The outer ring cavity 1200 is provided with an air flow channel 1210, and the air flow channel 1210 communicates with the concave cavity 1400. The secondary air flows through the air flow channel 1210 and enters the concave cavity. It can be understood that the dirt-receiving plate 1300 forms the bottom of the concave cavity 1400, and when water, residues, etc. fall into the concave cavity 1400, they can be received by the dirt-receiving plate 1300, preventing water, residues, etc. from entering the interior of the gas stove.

[0038] The outer ring cavity 1200 has an outer premixing cavity 1201, and the inner ring cavity 1100 has an inner premixing cavity 1101. The burner cap includes an outer ring burner cap and an inner ring burner cap. The outer ring burner cap is disposed on the outer ring cavity 1200 to enclose the outer premixing cavity 1201, and the inner ring burner cap is disposed on the inner ring cavity 1100 to enclose the inner premixing cavity 1101. After the gas and air enter the outer premixing cavity 1201, they are ejected from the outer ring burner cap and then ignited to form a flame. After the gas and air enter the inner premixing cavity 1101, they are ejected from the inner ring burner cap and then ignited to form a flame. It can be understood that the air entering the inner premixing cavity 1101 or the outer premixing cavity 1201 together with the gas is called primary air. During the combustion of the gas, through buoyancy and entrainment effects, some air in the surrounding environment replenishes the air at the flame formed by the outer ring burner cap (this air is called secondary air), and some air in the surrounding environment enters the concave cavity 1400 through the air flow channel 1210 and then replenishes the air at the flame formed by the inner ring burner cap (this air is also secondary air), thereby assisting the combustion of the gas. It can be understood that when the secondary air enters the concave cavity 1400, in addition to replenishing the air at the flame formed by the inner ring burner cap, it can also replenish the air at the flame formed by the outer ring burner cap.

[0039] In this embodiment, by improving the air flow channel 1210, the secondary air supply is further optimized, which is beneficial to improving the combustion efficiency of the gas. The air flow channel 1210 has a first ventilation port 1211, a second ventilation port 1212, and a third ventilation port 1213. The first ventilation port 1211 is communicated with the concave cavity 1400, the second ventilation port 1212 is communicated with the external space of the gas stove, and the external space of the gas stove can be understood as the space above the panel of the gas stove. The secondary air can enter the air flow channel 1210 from the external space of the gas stove through the third ventilation port 1213, and be discharged from the first ventilation port 1211 and then enter the concave cavity 1400, and then replenish to the flame. On this basis, the air flow channel 1210 further includes a second ventilation port 1212, and the second ventilation port 1212 is communicated with the internal space of the gas stove. The internal space of the gas stove is the space enclosed by the panel and the bottom shell. The panel and the bottom shell are not sealed, and the internal space of the gas stove is also communicated with the external space of the gas stove. The secondary air enters the air flow channel 1210 from the internal space of the gas stove through the second ventilation port 1212, and is discharged from the first ventilation port 1211 and then enters the concave cavity 1400, and then replenish to the flame.

[0040] It can be seen that through the mutual cooperation of the first ventilation port 1211, the second ventilation port 1212, and the third ventilation port 1213, two secondary air flow paths are formed in the air flow channel 1210. One secondary air flow path is from the third ventilation port 1213 to the first ventilation port 1211, and the other secondary air flow path is from the second ventilation port 1212 to the first ventilation port 1211. In this way, the supply of secondary air can be strengthened, which is beneficial to improving the combustion efficiency of the gas.

[0041] In addition, when the burner is working, the heat of the burner will be transferred to the inside of the gas stove, which is likely to cause the temperature rise of the gas stove. Especially when the gas stove is used for a long time, the too high temperature will affect the working performance of the burner. In this embodiment, the second ventilation port 1212 is communicated with the internal space of the gas stove, and the secondary air enters the air flow channel 1210 from the internal space of the gas stove through the second ventilation port 1212, and then is discharged from the first ventilation port 1211 to the concave cavity 1400. The flow of these secondary air takes away the heat of the internal space of the gas stove, which is beneficial to the cooling of the internal space of the gas stove. It can be understood that the internal space of the gas stove is not isolated from the external space. When the secondary air enters the air flow channel 1210 from the internal air of the gas stove and then enters the concave cavity 1400, the air in the external space of the gas stove continues to enter the internal space of the gas stove. It should be noted that when the secondary air enters the air flow channel 1210 from the internal space of the gas stove, it takes away heat, that is, the preheating of this part of the secondary air is realized, avoiding too large a temperature difference when the secondary air enters the concave cavity 1400 and further improving the combustion efficiency of the gas.

[0042] Combined with Figure 3 and Figure 4As shown, in some embodiments, the air flow channel 1210 extends along the radial direction of the burner head 1000. Specifically, when the gas stove is in the installation environment, the up-down direction is the axial direction of the burner head 1000, and the radial direction is perpendicular to the axial direction. Generally, the burner head 1000 is an integrally formed part, that is, it is integrally formed, for example, the burner head 1000 is cast, and then the burner head 1000 needs to be machined, and the air flow channel 1210 is formed by machining. Since the outer ring cavity 1200 surrounds the inner ring cavity 1100, the air flow channel 1210 is designed to extend along the radial direction, so that it is convenient to drill holes in the burner head 1000 from the outside to the inside during machining, thereby simplifying the structure and improving production efficiency. By such an arrangement, the first air vent 1211 is located inside the outer ring cavity 1200, the second air vent 1212 is located inside the outer ring cavity 1200, and the third air vent 1213 is located outside the outer ring cavity 1200. By arranging the third air vent 1213 outside the outer ring cavity 1200, the secondary air enters the air flow channel 1210 along the radial direction from the external space of the gas stove, reducing the resistance of the corresponding secondary air. By arranging the second air vent 1212 inside the outer ring cavity 1200, the heat in the internal space of the gas stove can enter the concave cavity 1400 more efficiently, further improving the combustion efficiency of the gas.

[0043] Combined with Figure 4 As shown, in some embodiments, the first air vent 1211 is arranged on the upper side of the dirt-receiving plate 1300, and the second air vent 1212 is arranged on the lower side of the dirt-receiving plate 1300. Since the dirt-receiving plate 1300 forms the bottom of the concave cavity 1400, that is, the concave cavity 1400 is located above the dirt-receiving plate 1300, and the second air vent 1212 needs to communicate with the internal space of the gas stove, the first air vent 1211 is arranged on the upper side of the dirt-receiving plate 1300, and the second air vent 1212 is arranged on the lower side of the dirt-receiving plate 1300, so that the dirt-receiving plate 1300 is located between the first air vent 1211 and the second air vent 1212, realizing both the communication between the first air vent 1211 and the concave cavity 1400 and the communication between the second air vent 1212 and the internal space of the gas stove, simplifying the structure and avoiding the flow path from being too complex.

[0044] Combined with Figure 4 As shown, in some embodiments, the second air vent 1212 is arranged between the bottom wall 1214 of the air flow channel 1210 and the dirt-receiving plate 1300, and when projected along the top-down direction, the projection of the edge of the dirt-receiving plate 1300 projects onto the bottom wall 1214 of the air flow channel 1210.

[0045] Specifically, the dirt receiving plate 1300 needs to receive water, residue, etc. that accidentally falls into the concave cavity 1400. Since the second air vent 1212 is arranged between the bottom wall 1214 of the air flow channel 1210 and the dirt receiving plate 1300, in order to prevent water, residue, etc. from entering the interior of the gas stove through the second air vent 1212, in this embodiment, the dirt receiving plate 1300 is designed to be projected along the top-down direction, and the projection of the edge of the dirt receiving plate 1300 is projected onto the bottom wall 1214 of the air flow channel 1210, that is, when observed along the top-down direction, the dirt receiving plate 1300 covers part of the bottom wall 1214 of the air flow channel 1210. In this way, when water, residue, etc. fall onto the dirt receiving plate 1300, they flow to the bottom wall 1214 of the air flow channel 1210 through the first air vent 1211, and the bottom wall 1214 of the air flow channel 1210 receives the water, residue, etc., which is convenient for users to clean.

[0046] Furthermore, the bottom wall 1214 of the air flow channel 1210 can be tilted downward from the second vent 1212 toward the outside of the outer ring cavity 1200, so that water, residues, etc. flowing from the dirt receiving plate 1300 to the bottom wall 1214 of the air flow channel 1210 are discharged to the outside of the outer ring cavity 1200 along the bottom wall 1214 of the air flow channel 1210, further facilitating cleaning by users. It is understandable that when a user cleans the panel of the gas stove, water, residues, etc. may enter the air flow channel 1210. The tilted bottom wall 1214 of the air flow channel 1210 can prevent water, residues, etc. from entering the interior of the gas stove through the second vent 1212.

[0047] Optionally, combined Figure 4 As shown, in some embodiments, the bottom wall 1214 of the air flow channel 1210 may be provided with a protrusion 1215 protruding upward, and the dirt receiving plate 1300 covers the protrusion 1215 in the top-to-bottom direction. By providing the protrusion 1215, water, residue, etc. flowing from the dirt receiving plate 1300 to the bottom wall 1214 of the air flow channel 1210 or entering the bottom wall 1214 of the air flow channel 1210 from the third air vent 1213 are blocked by the protrusion 1215, further preventing water, residue, etc. from entering the interior of the gas stove through the second air vent 1212.

[0048] Combination Figure 1 and Figure 2 As shown, in some embodiments, the outer ring cavity 1200 includes a plurality of air flow channels 1210, and the plurality of air flow channels 1210 are designed to be arranged alternately along the circumference of the outer ring cavity 1200. By such an arrangement, it is equivalent to increasing the flow cross-sectional area of ​​the air flow channel 1210, further improving the supply of secondary air, and the plurality of air flow channels 1210 are arranged alternately, which can ensure the structural strength of the furnace head 1000 and avoid a significant reduction in the structural strength of the furnace head 1000.

[0049] The second aspect of the present application discloses a burner, which includes a burner cap and the above-mentioned burner head 1000. The burner cap is arranged on the burner head 1000. The burner head 1000 includes an inner ring cavity 1100, an outer ring cavity 1200 and a dirt receiving plate 1300. The outer ring cavity 1200 surrounds the inner ring cavity 1100, and the dirt receiving plate 1300 is arranged between the inner ring cavity 1100 and the outer ring cavity 1200. The outer ring cavity 1200, the inner ring cavity 1100 and the dirt receiving plate 1300 jointly enclose a concave cavity 1400, and the concave cavity 1400 is open upward. Moreover, the outer ring cavity 1200 is provided with an air flow channel 1210, and the air flow channel 1210 includes a first air vent 1211, a second air vent 1212 and a third air vent 1213. The first air vent 1211 is communicated with the concave cavity 1400, the second air vent 1212 is communicated with the internal space of the gas stove, and the third air vent 1213 is communicated with the external space of the gas stove.

[0050] By providing the first air vent 1211, the second air vent 1212 and the third air vent 1213, some secondary air can enter the air flow channel 1210 from the external space of the gas stove through the third air vent 1213, and then be discharged to the concave cavity 1400 through the first air vent 1211. Some secondary air can enter the air flow channel 1210 from the internal space of the gas stove through the second air vent 1212, and then be discharged to the concave cavity 1400 through the first air vent 1211. By such an arrangement, the supplement efficiency and supplement amount of the secondary air are enhanced, which is more beneficial to the combustion of the gas. Moreover, since the second air vent 1212 is communicated with the internal space of the gas stove, when the secondary air is discharged from the internal space of the gas stove through the second air vent 1212, it can take away the heat in the internal space of the gas stove, inhibit the temperature rise of the gas stove. At the same time, the secondary air discharged from the internal space of the gas stove can be preheated to avoid too large a temperature difference, further improving the combustion effect of the gas.

[0051] It can be understood that the burner head 1000 of the burner adopts the technical solution of the above-mentioned embodiment, so it has at least the beneficial effects brought by the technical solution of the above-mentioned embodiment, which will not be repeated here.

[0052] The third aspect of the present application discloses a gas stove, which includes the above-mentioned burner. The burner of the gas stove in this embodiment adopts the technical solution of the above-mentioned embodiment, so it has at least the beneficial effects brought by the technical solution of the above-mentioned embodiment, which will not be repeated here.

[0053] The above are only the preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structural transformation made under the concept of the present application by using the content of the specification and drawings of the present application, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present application.

Claims

1. A furnace head (1000), characterized in that: The furnace head (1000) comprises: Inner ring cavity (1100); An outer annular cavity (1200) surrounding the inner annular cavity (1100); and A dirt receiving plate (1300) is disposed between the inner ring cavity (1100) and the outer ring cavity (1200), wherein the dirt receiving plate (1300), the outer ring cavity (1200) and the inner ring cavity (1100) surround a concave cavity (1400) that is open upwards; The outer ring cavity (1200) is provided with an air flow channel (1210), and the air flow channel (1210) has a first air vent (1211), a second air vent (1212) and a third air vent (1213), the first air vent (1211) is connected to the concave cavity (1400), the second air vent (1212) is suitable for connecting to the internal space of the gas stove, and the third air vent (1213) is suitable for connecting to the external space of the gas stove.

2. The furnace head (1000) according to claim 1, characterized in that: The air flow channel (1210) extends in the radial direction of the furnace head (1000); And / or, the first vent (1211) is arranged on the inner side of the outer ring cavity (1200), the second vent (1212) is arranged on the inner side of the outer ring cavity (1200), and the third vent (1213) is arranged on the outer side of the outer ring cavity (1200).

3. The furnace head (1000) according to claim 1, characterized in that: The first vent (1211) is arranged on the upper side of the dirt receiving plate (1300), and the second vent (1212) is arranged on the lower side of the dirt receiving plate (1300).

4. The furnace head (1000) according to claim 3, characterized in that: The second vent (1212) is disposed between the dirt receiving plate (1300) and the bottom wall (1214) of the air flow channel (1210), and when projected from top to bottom, the edge of the dirt receiving plate (1300) is projected onto the bottom wall (1214) of the air flow channel (1210).

5. The furnace head (1000) according to claim 4, characterized in that: The bottom wall (1214) of the air flow channel (1210) has a protruding portion (1215) protruding upward, and the dirt receiving plate (1300) covers the protruding portion (1215) in a direction from top to bottom.

6. The furnace head (1000) according to claim 4, characterized in that: The bottom wall (1214) of the air flow channel (1210) is arranged to be inclined downward from the second vent (1212) and toward the outside of the outer ring cavity (1200).

7. The furnace head (1000) according to claim 1, characterized in that: The outer ring cavity (1200) includes a plurality of the air flow channels (1210), and the plurality of the air flow channels (1210) are arranged alternately along the circumference of the outer ring cavity (1200).

8. The furnace head (1000) according to claim 1, characterized in that: The furnace head (1000) is an integrally formed part.

9. A burner, characterized in that: The burner comprises a fire cover and a burner head (1000) as claimed in any one of claims 1 to 8, wherein the fire cover comprises an inner ring fire cover and an outer ring fire cover, wherein the inner ring fire cover is arranged in the inner ring cavity (1100), and the outer ring fire cover is arranged in the outer ring cavity (1200).

10. A gas stove, characterized in that: The gas stove comprises the burner according to claim 9.

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