Combustion head, fire grate and gas equipment

Abstract

The utility model discloses a combustion head, a fire grate and gas equipment, and relates to the technical field of gas equipment. Wherein the combustion head part comprises a combustion cover and a metal net, and the combustion cover is provided with a plurality of fire holes distributed at intervals; the metal net is arranged on the combustion cover and covers the plurality of fire holes; the portion, corresponding to the fire holes, of the metal net is defined as a first area, and welding spots are arranged in the first area. According to the technical scheme, the whole flame of the combustion head can be more stable, flame lifting is not prone to occurring, and the effects of sufficient combustion and reduction of emission of nitric oxide are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas equipment, and particularly relates to a combustion head, a burner row and a gas equipment. Background Art

[0002] A burner is a core component of a gas equipment.

[0003] In related technologies, some burner rows are equipped with metal meshes at their combustion heads, and fine combustion holes are formed by the mesh holes of the metal meshes. However, the resistance of the metal mesh holes is relatively small. When the fan wind speed fluctuates, flashback and flameout phenomena often occur, resulting in unstable combustion. Summary of the Utility Model

[0004] The main object of the utility model is to propose a combustion head, aiming to avoid flashback and flameout, make the combustion sufficient, and reduce the emission of nitrogen oxides.

[0005] To achieve the above object, the combustion head proposed by the utility model includes:

[0006] A combustion cover, provided with a plurality of fire holes distributed at intervals; and

[0007] A metal mesh, arranged on the combustion cover and covering a plurality of the fire holes; a part of the metal mesh corresponding to the fire holes is defined as a first area, and the first area is provided with welding points.

[0008] In an embodiment of the present application, the first area is provided with one welding point, and the welding point is located at the center of the first area.

[0009] In an embodiment of the present application, the first area is provided with at least two welding points, and at least two welding points are randomly distributed at intervals in the first area.

[0010] In an embodiment of the present application, the number of layers of the metal mesh is multiple, and multiple layers of the metal mesh are all welded through the welding points.

[0011] In an embodiment of the present application, the metal mesh is arranged below the combustion cover.

[0012] In an embodiment of the present application, the combustion cover includes:

[0013] A panel, having a hollowed-out area, the panel is provided with a plurality of partition ribs extending along the width direction of the panel in the hollowed-out area, and the plurality of partition ribs are arranged at intervals along the length direction of the panel to divide the hollowed-out area into a plurality of the fire holes; the metal mesh is arranged on the back of the panel; and

[0014] Two side plates, respectively connected to both width sides of the panel.

[0015] In an embodiment of the present application, the metal mesh is fixedly welded to the partition ribs.

[0016] To achieve the above object, the present application further provides a burner head, including:

[0017] A housing, in which an air flow channel is formed; and

[0018] The above-mentioned combustion head, which is arranged at the top of the housing, and a plurality of the fire holes are all communicated with the air flow channel.

[0019] In an embodiment of the present application, the combustion cover includes a panel and two side plates arranged on both sides of the width of the panel. The two side plates are inserted into the air flow channel and fixedly connected to the inner wall of the housing, and the panel is arranged at the top of the housing.

[0020] In an embodiment of the present application, a plurality of recessed portions are provided on both sides of the width of the housing, and the plurality of recessed portions are arranged at intervals along the length direction of the housing, and the plurality of recessed portions are in abutting connection and fixation with the corresponding side plates;

[0021] The panel is provided with a plurality of partition ribs arranged at intervals along the length direction of the panel, and the plurality of partition ribs are arranged in one-to-one correspondence with the plurality of recessed portions.

[0022] To achieve the above object, the present application further provides a gas equipment, including the above-mentioned burner head.

[0023] In the technical solution of the utility model for the combustion head, the combustion cover is provided with a plurality of fire holes distributed at intervals, the metal mesh is arranged on the combustion cover and covers a plurality of fire holes. On the one hand, it can increase the combustion area, and on the other hand, it can disperse the air flow, making the combustion more uniform and stable. By setting welding points at the positions of the metal mesh corresponding to the fire holes, the welding points can play a pulling role on the metal mesh, so that while the resistance of the metal mesh increases at the welding points, the resistance gradually decreases from the center of the welding points to the surrounding, so that the air flow velocity also gradually increases from the position close to the center of the welding points to the surrounding. Then when the ejected air flow burns on the combustion head, the flames will be connected into one piece, and the flames in the low-flow velocity part will pull the flames in the high-flow velocity part, thereby making the overall flame of the combustion head more stable, not easy to get out of fire and away from the flame, achieving full combustion and reducing the emission of nitrogen oxides. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model 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 utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the structures shown in these drawings.

[0025] Figure 1 Structural schematic diagram of an embodiment of the burner row of the present utility model;

[0026] Figure 2 Exploded structural schematic diagram of an embodiment of the burner row of the present utility model;

[0027] Figure 3 Structural schematic diagram of an embodiment of the combustion head of the present utility model;

[0028] Figure 4 Exploded structural schematic diagram of an embodiment of the combustion head of the present utility model;

[0029] Figure 5 Top view of an embodiment of the combustion head of the present utility model;

[0030] Figure 6 Side view of the solder joints of the metal mesh in an embodiment of the present utility model;

[0031] Figure 7 Top view of the solder joints of the metal mesh in an embodiment of the present utility model.

[0032] Explanation of the reference numerals in the drawings:

[0033] Label Name Label Name 1 Combustion head 12a First region 11 Combustion cover 13 Soldering point 111 Panel 2 Shell 112 Side plate 201 Air outlet 113 Partition rib 202 Air inlet 101 Flame hole 21 Depression 12 Metal mesh

[0034] The realization of the object, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0036] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications 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.

[0037] At the same time, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution that satisfies both A and B at the same time.

[0038] In addition, if descriptions such as "first", "second", etc. are involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory 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 the present utility model.

[0039] In the related art, some burner fire grates are equipped with metal meshes at their combustion heads, and the meshes of the metal meshes are used to form fine combustion fire holes. However, the resistance of the metal mesh fire holes is relatively small. When the fan air velocity fluctuates, it is often prone to the phenomenon of flame lift-off and flashback, resulting in unstable combustion.

[0040] Based on this, the present utility model proposes a combustion head 1, aiming to increase the resistance of the metal mesh 12 part corresponding to the fire hole 101 by arranging solder joints 13 on the metal mesh 12, reduce the air flow intensity, avoid the phenomenon of flame lift-off and flashback, make the combustion sufficient, and reduce the emission of nitrogen oxides. It can be understood that, as Figure 1 and Figure 2 , the combustion head 1 is applied to the fire grate. The shell 2 of the fire grate has an air flow channel for introducing gas and air. The combustion head 1 is arranged at the top of the shell 2 for the mixed gas of gas and air to be ejected from the air flow channel and burn. The structure of the combustion head 1 will be described below by way of embodiments.

[0041] As Figures 2 to 7 shown, the combustion head 1 includes a combustion cover 11 and a metal mesh 12. The combustion cover 11 is provided with a plurality of fire holes 101 distributed at intervals; the metal mesh 12 is arranged on the combustion cover 11 and covers a plurality of fire holes 101; the part of the metal mesh 12 corresponding to the fire hole 101 is defined as the first area 12a, and the first area 12a is provided with solder joints 13.

[0042] It can be understood that the combustion cover 11 is arranged on the top of the housing 2 of the burner. The air inlet 202 of the air flow channel in the housing 2 is connected to an air flow source. The air flow source includes air and gas. The gas and air enter the air flow channel from the air inlet 202, are pre-mixed in the air flow channel, and then flow to the air outlet 202, and are ejected through a plurality of flame holes 101 on the combustion cover 11 and ignited to form a combustion flame. Optionally, the specific structure of the combustion cover 11 can be determined according to the actual situation. For example, it can be a plate structure, a U-shaped structure or other shaped structures. The combustion cover 11 can be made of a heat-resistant sheet metal part. The plurality of flame holes 101 are distributed at intervals and can play a role in equalizing the flow, making the air flow more uniform when ejected. Optionally, the flame holes 101 can be circular holes, square holes, triangular holes, strip holes or other irregularly shaped holes.

[0043] The metal mesh 12 is arranged on the combustion cover 11 and covers a plurality of flame holes 101, playing a role in dispersing the air flow, so that the mixed gas can burn sufficiently after being ignited, forming a stable and uniform flame. In addition, the metal mesh 12 can also prevent safety accidents such as explosion caused by flashback. It can be understood that the metal mesh 12 can be located above or below the flame holes 101. In actual application, since the flame burns above the combustion head 1, the requirements for heat resistance and strength of the metal mesh 12 located above the flame holes 101 are higher than those located below the flame holes 101. Considering factors such as cost and service life, optionally, the metal mesh 12 is arranged below the flame holes 101. Optionally, the metal mesh 12 is composed of a heat-resistant material, such as an iron-chromium-aluminum material.

[0044] In this embodiment, the part of the metal mesh 12 corresponding to the flame holes 101 is defined as the first region 12a. By setting welding spots 13 on the first region 12a, the resistance at the first region 12a can be increased. Specifically, during the spot welding process of the metal mesh 12, the position of the center of the welding spot 13 is the most obviously squeezed and melted into one body at high temperature. Therefore, the metal mesh 12 at the center position of the welding spot 13 is the densest and has the greatest resistance. Diffusing from the middle to the surroundings, the resistance also gradually changes from the maximum when it is dense to the normal resistance in the natural state of the metal mesh 12. The design of the welding spots 13 enables the metal mesh 12 to have the characteristic of gradually changing resistance. When the air flow ejected from the air flow channel burns on the metal mesh 12, the flames are connected into one piece. At the position with a large resistance, the gas flow rate is slow and it is not easy to blow off the flame or separate from the flame. Therefore, the flame stabilization effect near the welding spots 13 of the metal mesh 12 is the best, and at the same time, it is connected with the surrounding flames to play a pulling role. Compared with the solution without the design of the welding spots 13 in the related art, the overall flame of the combustion head 1 is more stable, not easy to blow off the flame or separate from the flame, burns more fully, and the nitrogen oxide emission in the combustion flue gas is lower.

[0045] Optionally, the number of layers of the metal mesh 12 can be single-layer, two-layer or multi-layer. When it is single-layer, spot welding can be performed on the single-layer metal mesh 12, which can pull the surrounding area, exhibiting the characteristic of gradually changing resistance and achieving the effect of flame stabilization. When it is two-layer or multi-layer, the solder joints 13 can fuse the two-layer or multi-layer metal meshes 12 together. The centers of the solder joints 13 exert a pulling effect on the two-layer or multi-layer metal meshes 12, and the resistance gradually changes from the center position of the solder joints 13 to the surrounding to the normal resistance of the two-layer or multi-layer metal meshes 12 in their natural state. The gas flow rate also gradually increases from the position close to the center of the solder joints 13 to the surrounding, achieving a better flame stabilization effect.

[0046] In summary, in the combustion head 1 of the technical solution of the present utility model, the combustion cover 11 is provided with a plurality of fire holes 101 distributed at intervals, and the metal mesh 12 is arranged on the combustion cover 11 and covers the plurality of fire holes 101. On the one hand, it can increase the combustion area, and on the other hand, it can disperse the air flow, making the combustion more uniform and stable. By arranging the solder joints 13 at the positions of the metal mesh 12 corresponding to the fire holes 101, the solder joints 13 can exert a pulling effect on the metal mesh 12, so that while the resistance of the metal mesh 12 at the solder joints 13 increases, the resistance gradually decreases from the center of the solder joints 13 to the surrounding, thereby making the air flow rate also gradually increase from the position close to the center of the solder joints 13 to the surrounding. Then, when the ejected air flow burns on the combustion head 1, the flames will be connected into one piece, and the flames at the low-flow-rate parts will pull the flames at the high-flow-rate parts, thus making the overall flame of the combustion head 1 more stable, not easily prone to flame detachment and flame lift-off, achieving full combustion and reducing the emission of nitrogen oxides.

[0047] In an embodiment of the present application, as Figures 5 to 7 , the first region 12a is provided with a solder joint 13, and the solder joint 13 is located at the center of the first region 12a.

[0048] In this embodiment, taking the example that each first region 12a is provided with a solder joint 13, by setting the solder joint 13 at the center of the first region 12a, the resistance at the center of the first region 12a is the largest and gradually decreases towards the surrounding. Thus, the distribution of the air flow when passing through the first region 12a can be made more uniform. At the same time, the flame at the center of the first region 12a can pull the surrounding flames, achieving a better flame stabilization effect.

[0049] It should be noted that the first region 12a in this embodiment is the part corresponding to the fire hole 101, and the specific shape of the first region 12a matches the shape of the fire hole 101. Then, the center of the first region 12a actually corresponds to the center of the fire hole 101.

[0050] In an embodiment of the present application, the first region 12a is provided with at least two solder joints 13, and the at least two solder joints 13 are randomly and spaced apart in the first region 12a.

[0051] In this embodiment, it is taken as an example that at least two solder joints 13 are provided on each first region 12a. It can be understood that in actual applications, the specific positions of the at least two solder joints 13 may not be limited. For example, they can be distributed in a matrix pattern, a circular array pattern, a symmetric pattern, a scattered pattern, or other forms of distribution, etc.

[0052] To better evenly distribute the airflow, preferably, the at least two solder joints 13 can be spaced apart along the length direction or the width direction of the first region 12a, so that the combustion flame distribution of the entire combustion head 1 is more uniform and stable.

[0053] Optionally, the number of solder joints 13 can be determined according to actual situations. For example, it can be 2, 3, or more, etc.

[0054] To further improve the flame uniformity, as Figures 6 to 7 , in an embodiment of the present application, the number of layers of the metal mesh 12 is multiple layers, and the multiple layers of metal mesh 12 are all welded through the solder joints 13.

[0055] In this embodiment, by using multiple layers of metal mesh 12, the air and gas can be further dispersed, making the gas and air mix evenly. There is a certain gap between the metal meshes 12, which will neither completely block and cause an increase in resistance, nor can they block each other, avoiding the flame from easily extinguishing due to the airflow directly blowing through the flame holes 101. At the same time, it can also achieve a better anti-backfire effect.

[0056] In actual applications, the number of layers of the metal mesh 12 is related to the mesh number of the metal mesh 12. The metal mesh 12 with a larger mesh number has a corresponding smaller number of layers, and the one with a smaller mesh number has a corresponding larger number of layers. For example, the number of layers of the metal mesh 12 can be 2 to 10 layers, specifically 2 layers, 3 layers, 4 layers, 5 layers, 6 layers, 7 layers, 8 layers, 9 layers, or 10 layers. The mesh number of the metal mesh 12 can be from 20 meshes to 100 meshes, specifically 20 meshes, 40 meshes, 50 meshes, 60 meshes, 80 meshes, or 100 meshes, etc. Considering that too many layers may lead to insufficient air supply and the high price of the metal mesh 12 with a large mesh number, by way of example, the metal mesh 12 can adopt a combination of 4 layers and 40 meshes.

[0057] In this embodiment, when setting the solder joints 13 on the first region 12a, the multiple layers of metal mesh 12 are all welded through the solder joints 13, that is, the multiple layers of metal mesh 12 are fused together at the solder joints 13, so that the multiple layers of metal mesh 12 are all pulled by the solder joints 13. Then the resistance at the solder joints 13 is the largest, and the resistance gradually changes from the center position of the solder joints 13 to the surrounding to the normal resistance in the natural state of the multiple layers of metal mesh 12. The gas flow rate also gradually increases from the position near the center of the solder joints 13 to the surrounding, achieving a better flame stabilization effect.

[0058] In an embodiment of the present application, as Figures 1 to 5, the combustion cover 11 includes a panel 111 and two side plates 112. The panel 111 has a hollowed-out area. In the hollowed-out area of the panel 111, a plurality of partition ribs 113 extending along the width direction of the panel 111 are provided. The plurality of partition ribs 113 are arranged at intervals along the length direction of the panel 111 to divide the hollowed-out area into a plurality of fire holes 101; a metal mesh 12 is provided on the back of the panel 111; the two side plates 112 are respectively connected to both width sides of the panel 111.

[0059] In this embodiment, the structure of the combustion cover 11 is exemplified. The panel 111 and the two side plates 112 generally form an "∩" - shaped structure. When applied to a burner row, the panel 111 is arranged on the top of the housing 2, and the two side plates 112 are inserted into the gas channels and are respectively fixed to the two side wall surfaces of the housing 2. The two side plates 112 can be an integrally formed structure or a split structure with the panel 111. For the convenience of production and manufacturing, it is optional that the combustion cover 11 is an integral sheet metal part, and the two side plates 112 are respectively formed by bending and extending from both width sides of the panel 111.

[0060] The hollowed-out area of the panel 111 corresponds to the air outlet 201 of the housing 2. By providing a plurality of partition ribs 113 extending along the width in the hollowed-out area, the plurality of partition ribs 113 are spaced apart in the length direction of the panel 111 to divide the hollowed-out area into a plurality of fire holes 101. It can be understood that on the one hand, the partition ribs 113 play a role in strengthening the structure, and on the other hand, they play a role in separating the plurality of fire holes 101. The plurality of fire holes 101 are spaced apart along the length direction of the panel 111, and a fire hole 101 is formed between every two adjacent partition ribs 113, which plays a role in evenly discharging air and makes the flame combustion more stable.

[0061] Correspondingly, the metal mesh 12 is provided on the back of the panel 111. Optionally, the metal mesh 12 is welded and fixed to the partition ribs 113.

[0062] The present utility model also proposes a burner row, as Figure 1 and Figure 2 , this burner row includes a housing 2 and a combustion head 1. The specific structure of the combustion head 1 refers to the above - mentioned embodiment. Since this burner row adopts all the technical solutions of the above - mentioned all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above - mentioned embodiments, and will not be elaborated one by one here. Among them, an air flow channel is formed in the housing 2; the combustion head 1 is arranged on the top of the housing 2, and a plurality of fire holes 101 are all communicated with the air flow channel.

[0063] In this embodiment, the housing 2 is provided with an air flow channel, an air inlet 202 and an air outlet 201 communicating with the air flow channel. The air inlet 202 is used to communicate with an air flow source, and the air flow source includes air and gas. The gas and air enter the air flow channel from the air inlet 202, are pre-mixed in the air flow channel, then flow to the air outlet 201, are dispersed and split by the metal mesh 12, and are ejected from a plurality of flame holes 101 and ignited to form a combustion flame.

[0064] Optionally, the housing 2 is formed by splicing two substantially symmetrical sheet metal parts. After corresponding pressing of the two sheet metal parts, an air flow channel is formed inside them, and the air outlet 201 is formed at the top of the two sheet metal parts. The combustion cover 11 is covered at the air outlet 201. Specifically, the combustion cover 11 includes a panel 111 and two side plates 112 provided on both sides of the width of the panel 111. The two side plates 112 are inserted into the air flow channel and fixedly connected to the inner wall of the housing 2, and the panel 111 is provided on the top of the housing 2. It can be understood that the two side plates 112 are respectively fixedly connected to the two sheet metal parts, so that the panel 111 covers the air outlet 201, and the metal mesh 12 is provided below the panel 111. Thus, the air flow in the air flow channel is first dispersed and split by the metal mesh 12 and then ejected from the flame holes 101 on the panel 111.

[0065] Furthermore, as Figure 1 and Figure 2 shown, a plurality of recessed portions 21 are provided on both sides of the width of the housing 2. The plurality of recessed portions 21 are arranged at intervals along the length direction of the housing 2, and the plurality of recessed portions 21 are in abutting and fixed connection with the corresponding side plates 112; the panel 111 is provided with a plurality of partition ribs 113 arranged at intervals along the length direction of the panel 111, and the plurality of partition ribs 113 are arranged in one-to-one correspondence with the plurality of recessed portions 21.

[0066] In this embodiment, the partition ribs 113 can enhance the strength of the combustion cover 11 and are not easily deformed or distorted. When the combustion cover 11 is assembled with the housing 2, the recessed portions 21 play a role in positioning and installing the side plates 112. The side plates are in abutment with the recessed portions 21, and the two can be welded and fixed. By arranging the distribution of the partition ribs 113 in one-to-one correspondence with the recessed portions 21, it can play a role in supporting the welding position and prevent the recessed portions 21 from being sunken when welded to the side plates, ensuring the strength of the assembly structure.

[0067] The present utility model also proposes a gas device, which includes a burner block. The specific structure of the burner block refers to the above embodiment. Since this gas device adopts all the technical solutions of the above all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated one by one here.

[0068] Exemplarily, the gas device can be a burner, such as an atmospheric burner, a rich-lean burner or a water-cooled burner and other forms of burners.

[0069] Exemplarily, the gas equipment may also be equipment such as a gas water heater, a boiler, etc.

[0070] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A combustion head, characterized in that: include: A combustion cover having a plurality of fire holes spaced apart from each other; and A metal mesh is arranged on the combustion cover and covers the plurality of the fire holes; the portion of the metal mesh corresponding to the fire holes is defined as a first area, and a welding spot is arranged in the first area.

2. The burner head according to claim 1, characterized in that The first region is provided with a welding spot, and the welding spot is located at the center of the first region.

3. The burner head according to claim 1, characterized in that The first region is provided with at least two welding spots, and the at least two welding spots are randomly spaced and distributed in the first region.

4. The burner head according to any one of claims 1 to 3, characterized in that The metal mesh has multiple layers, and the multiple layers of the metal mesh are all welded through the welding points.

5. The burner head according to any one of claims 1 to 3, characterized in that The metal mesh is arranged below the combustion cover.

6. The burner head according to any one of claims 1 to 3, characterized in that The combustion cover comprises: A panel having a hollow area, wherein the panel is provided with a plurality of partition ribs extending in the width direction of the panel in the hollow area, and the plurality of partition ribs are arranged at intervals in the length direction of the panel to divide the hollow area into a plurality of the fire holes; the metal mesh is provided on the back of the panel; and Two side panels are respectively connected to two sides of the width of the panel.

7. The burner head according to claim 6, characterized in that The metal mesh is fixed to the separation rib by welding.

8. A fire grate, characterized in that: include: a housing having an air flow channel formed therein; and The combustion head according to any one of claims 1 to 7 is arranged on the top of the shell, and the plurality of fire holes are all connected to the air flow channel.

9. The fire bar according to claim 8, characterized in that: The combustion cover comprises a panel and two side plates arranged on both sides of the panel width, the two side plates are inserted in the air flow channel and fixedly connected to the inner wall of the shell, and the panel is arranged on the top of the shell.

10. The fire bar according to claim 9, characterized in that: A plurality of recessed parts are provided on both sides of the width of the shell, and the plurality of recessed parts are arranged at intervals along the length direction of the shell, and the plurality of recessed parts are abutted and fixed with the corresponding side plates; The panel is provided with a plurality of partition ribs arranged at intervals along the length direction of the panel, and the plurality of partition ribs are arranged in one-to-one correspondence with the plurality of recessed portions.

11. A gas equipment, characterized in that: Comprising a fire bar as claimed in any one of claims 8 to 10.

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