Burner housing, burner and hot water equipment having the same

Abstract

The present invention discloses a burner shell and a burner and a hot water device having the same. The burner shell includes: a side panel, the side panel encloses and forms an installation space that passes through from top to bottom, for installing the burner unit of the burner; an air distribution plate, the air distribution plate blocks the lower end opening of the installation space and is suitable for being located below the burner unit, and the air distribution plate is provided with a first air port and a second air port that are spaced apart and used for air intake, the first air port is connected to an internal gas channel in the burner unit, and the second air port is connected to an external gas channel located at the side of the burner unit. The shell of the burner according to the embodiment of the present invention is conducive to improving the combustion performance of the burner and reducing the volume.

Description

Technical Field

[0001] The present invention relates to the technical field of burners, in particular to a burner and a water heating device having the burner. Background Art

[0002] Environmental protection requirements are becoming increasingly stringent worldwide, particularly in Europe. Within the water heater industry, laws and standards have been established to regulate flue gas emissions. To achieve low nitrogen emissions and affordable costs, water-cooled combustion technology has quietly emerged in the market. Because water-cooled burners utilize atmospheric natural-mix combustion, related technologies have traditionally employed the same structure as conventional atmospheric natural-mix burners, including open-type designs and those with simple tie-rod connections.

[0003] The disadvantages of this structure are: the combustion intensity cannot be improved, there are many single pieces of combustion, and all parts are forced to be designed to be large, resulting in a huge volume and high manufacturing cost; the combustion performance is poor, and after increasing the mixed air, the nitrogen oxides decrease, but the flame stability is poor, it is easy to flame out, difficult to ignite, and difficult to transmit the flame. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a burner housing that is conducive to improving the combustion performance of the burner and reducing its volume.

[0005] The present invention also provides a burner having the shell of the burner.

[0006] The present invention also provides a water heating device having the shell of the burner.

[0007] According to the embodiment of the first aspect of the present invention, the shell of the burner includes: a side panel, which encloses an installation space that passes through from top to bottom for installing the burner unit of the burner; an air distribution plate, which blocks the lower end opening of the installation space and is suitable for being located below the burner unit, and is provided with a first air inlet and a second air inlet spaced apart and used for air intake on the air distribution plate, the first air inlet is communicated with the internal gas channel in the burner unit, and the second air inlet is communicated with the external gas channel located on the side of the burner unit.

[0008] The shell of the burner according to the embodiment of the present invention is conducive to improving the combustion performance of the burner and reducing its volume.

[0009] In addition, the housing of the burner according to the above embodiment of the present invention may also have the following additional technical features:

[0010] According to some embodiments of the present invention, the installation space is suitable for arranging a plurality of the burner units arranged in sequence along the left-right direction, and the first air outlet and the second air outlet respectively include a plurality of first air outlets and a plurality of second air outlets, and the plurality of first air outlets and the plurality of second air outlets are alternately arranged along the arrangement direction, and the plurality of first air outlets are connected one-to-one with the internal gas channels of the plurality of burner units.

[0011] Furthermore, each of the first air outlets includes a plurality of air holes, and the plurality of air holes are spaced apart and distributed along the front-to-back direction.

[0012] Furthermore, the second air outlet extends into a long strip along the front-to-back direction, and the second air outlet includes a first section and a second section alternately arranged along the front-to-back direction and connected to each other, and the width of the first section along the left-to-right direction is smaller than the width of the second section along the left-to-right direction, wherein, along the front-to-back direction, the first section corresponds to the position of the air hole and the second section is located between two adjacent air holes.

[0013] According to some embodiments of the present invention, a partition structure is provided on the side panel, and the partition structure is used to separate the multiple burner units.

[0014] Optionally, the partition structure includes a partition flange provided at the upper end of the side panel and extending into the installation space, and the partition flange is suitable for stopping between two adjacent burner units.

[0015] Furthermore, an outlet of the external gas channel is formed between the upper parts of two adjacent burner units, and the front edge and the rear edge of the upper end of the side panel are respectively provided with the separating flanges, and the two separating flanges cooperate with the burner units to separate the two adjacent outlets.

[0016] Furthermore, each of the partition flanges includes a plurality of partition tongues distributed along the left-right direction, and two adjacent burner units are separated by the partition tongues.

[0017] Optionally, one burner unit is provided between every two of the partition tongues, and the roots of two adjacent partition tongues are spaced apart to form a positioning gap for positioning the burner unit in the up and down directions.

[0018] According to some embodiments of the present invention, the side panel is further provided with a positioning structure for positioning the burner unit in the up and down directions.

[0019] Furthermore, the positioning structure includes a positioning hole extending from top to bottom along the side panel.

[0020] Furthermore, the positioning holes are provided on at least one of the front side and the rear side of the installation space, and there are at least two positioning holes corresponding to each burner unit.

[0021] According to some embodiments of the present invention, a positioning flange extending into the installation space is provided at the lower end of the side panel, and the positioning flange is used to position the bottom of the burner unit.

[0022] According to some embodiments of the present invention, a mounting portion for mounting an ignition needle is provided on an upper portion of the side panel.

[0023] Optionally, the side panel includes: a front side panel; a rear side panel, the front side panel and the rear side panel are spaced apart from each other in front and back; a left side panel, the left side panel is arranged on the left side of the front side panel, and the front edge and rear edge of the left side panel are respectively connected to the left edge of the front side panel and the left edge of the rear side panel; a right side panel, the right side panel is arranged on the right side of the front side panel, and the front edge and rear edge of the right side panel are respectively connected to the right edge of the front side panel and the right edge of the rear side panel, two of the lower ends of the front side panel, the lower end of the rear side panel, the lower end of the left side panel and the lower end of the right side panel are against the air distribution plate, and the other two are threadedly connected to the air distribution plate.

[0024] The burner according to an embodiment of the second aspect of the present invention includes a housing of the burner according to an embodiment of the present invention.

[0025] The water heating device according to the embodiment of the third aspect of the present invention includes a housing of the burner according to the embodiment of the present invention.

[0026] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0028] Figure 1 is a schematic structural diagram of a burner according to an embodiment of the present invention;

[0029] Figure 2 2 is a schematic structural diagram of a burner unit and a liquid cooling tube of a burner according to an embodiment of the present invention;

[0030] Figure 3 is a combustion principle diagram of a burner according to an embodiment of the present invention;

[0031] Figure 4 is a schematic structural diagram of a shell of a burner according to an embodiment of the present invention;

[0032] Figure 5 2 is a schematic structural diagram of an air distribution plate of a burner according to an embodiment of the present invention;

[0033] Figure 6 2 is a schematic structural diagram of an air distribution plate of a burner according to an embodiment of the present invention;

[0034] Figure 7 is a structural schematic diagram of a front side plate of a burner according to an embodiment of the present invention;

[0035] Figure 8 is a front view of a front side plate of a burner according to an embodiment of the present invention;

[0036] Figure 9 is a top view of a front side plate of a burner according to an embodiment of the present invention;

[0037] Figure 10 FIG. 1 is a left side view of a front side plate of a burner according to an embodiment of the present invention.

[0038] Reference numerals:

[0039] Burner 100;

[0040] Housing 10; housing cavity 101; air inlet 102; first air outlet 1021; air hole 1020; second air outlet 1022; first section 1023; second section 1024; combustion port 103;

[0041] Burner unit 20; combustion fire hole 201; internal gas channel 202; external gas channel 203;

[0042] Combustion top plate 21; outer flange 211; combustion side plate 22; first side plate 221; second side plate 222;

[0043] Liquid cooling pipe 30;

[0044] Side panel 11; positioning flange 1101; air distribution plate 12; front side panel 111; rear side panel 112; left side panel 113; right side panel 114;

[0045] Separation structure 40; separation flange 41; separation tongue 411; positioning gap 401;

[0046] Positioning structure 50 ; positioning hole 51 ; mounting portion 60 ; ignition needle 610 . DETAILED DESCRIPTION

[0047] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and are not to be construed as limiting the present invention. Those skilled in the art may make various changes, modifications, substitutions, and variations to these embodiments without departing from the principles and purpose of the present invention. The scope of the present invention is defined by the claims and their equivalents.

[0048] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0049] Hereinafter, a burner 100 and a water heater having the same according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0050] Reference Figure 1 As shown, the burner 100 according to some embodiments of the present invention may include: a housing 10 and a burner unit 20. Figure 1 In the embodiment shown, there are multiple burner units 20, specifically eight. Of course, the number of burner units 20 is not limited to this. For example, it can also be one, or other numbers. That is, in the embodiment of the present invention, the burner unit 20 can include at least one.

[0051] Combine Figure 1 and Figure 4 As shown, the shell 10 has a shell cavity 101, and the burner unit 20 can be set in the shell cavity 101. The lower part of the shell 10 is provided with an air inlet 102, and the air inlet 102 is connected to the shell cavity 101. The upper part of the shell 10 is provided with a combustion port 103, and the combustion port 103 is connected to the shell cavity 101. Figures 1 to 3 As shown, a combustion hole 201 is formed on the upper portion of the burner unit 20, and the combustion hole 201 is exposed from the burner port 103. Optionally, the combustion hole 201 can be higher or lower than the burner port 103, or can be flush with the burner port 103. An internal gas channel 202 can be provided in the burner unit 20, so that a portion of the air entering from the air inlet 102 can flow through the internal gas channel 202 to the combustion hole 201, and can be burned at the combustion hole 201. The flow direction of the air in the internal gas channel 201 is as shown in FIG. Figure 3 Indicated by the arrow.

[0052] The burner 100 is configured with an external gas passage 203 on the outer side of the burner unit 20. Figure 2 and Figure 3 As shown, the external gas channel 203 can connect the air inlet 102 and the combustion port 103, so that another part of the air entering from the air inlet 102 can flow to the combustion hole 201 through the external gas channel 203, thereby promoting combustion at the combustion hole 201. The flow direction of the air in the external gas channel 202 is as shown in FIG. Figure 3 Indicated by the arrow.

[0053] Compared with the combustion devices in the related art, the burner 100 according to the embodiment of the present invention provides a completely new burner principle structure, which can enhance combustion, improve combustion conditions, and improve combustion performance.

[0054] Specifically, the inventors have found through research that in the relevant technology, there is only one gas channel arranged in the combustion single piece in the combustion device. This structure will have many disadvantages, such as: the gas combustion is all primary air, there is no secondary air, and only simple primary air mixed combustion can be achieved, and the combustion intensity cannot be improved; there are many combustion single pieces, and all parts are forced to be designed to be large, resulting in high manufacturing costs; the combustion performance is poor, and after increasing the mixed air, the nitrogen oxides decrease, but the flame stability is poor, it is easy to flame out, difficult to ignite, and difficult to transmit the fire; the performance of large and small fires is maintained by the nozzle's entrainment ability, and the environmental adaptability is poor; due to the limitation of the amount of air required for small fire combustion, the combustion intensity cannot be increased; if there is an external fan's wind work influence, the wind of the small fire is greater, in order to ensure the overall combustion performance, the combustion intensity of the large fire is even smaller, and the load cannot be increased; the combustion is natural suction, the air speed is slow, the radiation intensity is high, the cooling effect is poor, and the combustion intensity cannot be increased.

[0055] The burner 100 according to the embodiment of the present invention has a completely new design of the internal structure, which has been optimized and solved theoretically. Inside the burner 100, there is not only an internal gas channel 202, but also an external gas channel 203. At this time, the primary air supply can be carried out through the internal gas channel 202, and the secondary air supply can be carried out through the external gas channel 203. The combustion air can use primary air plus secondary air, which can achieve the effect of strengthening combustion, improving combustion conditions, and improving combustion performance. The combustion speed of the burner 100 according to the embodiment of the present invention becomes faster, so that the temperature of the upper part of the burner unit 20 becomes lower, and the entire load can be increased; at the same time, the secondary air can have a cooling effect on the burner unit 20, which is also beneficial to reduce the temperature of the upper part of the burner unit 20, so that the load can be further increased;

[0056] Research has shown that the burner 100 according to the present invention can enhance combustion intensity by 50%, facilitating a reduction in size. Furthermore, the reduced air ratio results in more stable combustion performance. Furthermore, the flow of secondary air actually reduces nitrogen oxides. Furthermore, the increased combustion intensity of the burner unit 20 also increases the overall load, reducing overall unit costs at the same load.

[0057] In some embodiments, the burner 100 can also use a gas-driven device such as a fan to increase the air flow rate, change the fan's suction force from primary air to secondary air, increase the total combustion air volume, enhance the overall combustion intensity, and make the combustion more stable.

[0058] According to some embodiments of the present invention, the excess air coefficient of each burner unit 20 is a, and the combustion power is P, wherein 0.9≤a≤1.0, and 2.8KW≤P≤3.2KW. After a large number of experiments, it was verified that the excess air coefficient of the atmospheric burner 100 is too large, and the flame is extremely unstable, especially for water-cooled burners with flat fire holes, which have no flame stabilization structure and extremely poor flame performance. Therefore, when the excess air coefficient of the burner 100 is controlled at a=0.9~1.0, the combustion effect is better. In terms of single-chip load, the water cooling effect is further optimized by adding a large amount of secondary air, and the single-chip load can be enhanced to 2.8~3.2KW.

[0059] Reference Figures 1 to 3 As shown, in some embodiments of the present invention, the burner unit 20 may include multiple burner units 20, and the multiple burner units 20 may be arranged in sequence along the horizontal direction, for example, along Figure 1 The burner units 20 may be arranged in the left-right direction as shown in FIG, or in other directions, such as the front-to-back direction. Along the arrangement direction of the multiple burner units 20, an external gas passage 203 may be provided on at least one side of each burner unit 20. In other words, the external gas passage 203 may be provided on only one side of the burner units 20 along the arrangement direction, or on both sides of the burner units 20 along the arrangement direction. This placement of the external gas passage 203 is more reasonable, not only facilitating implementation but also facilitating the arrangement of the burner units 20.

[0060] Furthermore, if Figure 2 and Figure 3As shown, an external gas passage 203 shared by the two adjacent burner units 20 can be provided between the two adjacent burner units 20. In other words, the two adjacent burner units 20 can share the external gas passage 203 located between the two burner units 20, without having to provide separate external gas passages 203 for each. This can improve the internal space utilization of the burner 100, which is conducive to further reducing the volume of the burner 100. In addition, the interval between the two adjacent burner units 20 can be relatively small, resulting in a better overall combustion effect of the burner 100.

[0061] According to some optional embodiments of the present invention, along the arrangement direction of the plurality of burner units 20, the minimum extension dimension of each outer gas channel 203 may be smaller than the minimum extension dimension of the inner gas channel 202. Figure 3 For example, multiple burner units 20 are arranged in a left-right direction. The minimum extension of each outer gas passage 203 in the left-right direction can be smaller than the minimum extension of the inner gas passage 202 in the left-right direction. This allows for more reasonable control of the ratio of primary air to secondary air, further improving combustion performance and stabilizing the flame.

[0062] Reference Figures 1 to 3 As shown, in some embodiments of the present invention, the burner unit 20 may include: a combustion top plate 21 and a combustion side plate 22. The combustion fire hole 201 may be provided on the combustion top plate 21. The combustion side plate 22 is connected to the combustion top plate 21, and the internal gas channel 202 is defined by the combustion side plate 22 and the combustion top plate 21. When the burner unit 20 includes a plurality of external gas channels 203 and an external gas channel 203 is provided between two adjacent burner units 20, the external gas channel 203 provided between the two adjacent burner units 20 may be formed by at least separating the two adjacent combustion side plates 22, and the external gas channel 203 provided between the burner unit 20 and the outer shell 10 may be formed by at least separating the combustion side plate 22 and the outer shell 10.

[0063] For example, in some specific embodiments, the combustion top plate 21 is inserted into the upper portion of the combustion side plate 22 to cover the upper portion of the combustion side plate 22, and the external gas channel 203 between two adjacent burner units 20 is formed by the adjacent combustion side plates 22 of the two adjacent burner units 20. For another example, in other specific embodiments, the combustion top plate 21 is inserted into the upper portion of the combustion side plate 22 to cover the upper portion of the combustion side plate 22. The external gas channel 203 between two adjacent burner units 20 is formed by the adjacent combustion side plates 22 and the combustion top plate 21 of the two adjacent burner units 20.

[0064] Optionally, according to some specific examples of the present invention, such as Figure 3As shown, an external gas channel 203 is provided between each adjacent burner unit 20, and an external gas channel 203 is also formed between the outermost burner unit 20 and the housing 10. In this case, along the arrangement direction of the multiple burner units 20, the external gas channels 203 and the burner units 20 can be arranged alternately or interspersed. Research has shown that this structure enhances combustion and improves combustion performance more effectively.

[0065] In other specific examples, the external gas passages 203 and the burner units 20 are not arranged alternately. For example, the two may be arranged in the following order: external gas passage 203, burner unit 20, burner unit 20, external gas passage 203, burner unit 20, burner unit 20, external gas passage 203, etc. In this case, two adjacent burners 100 may be connected to each other and spaced apart from the other two connected burner units 20. With this structure, each burner unit 20 can also achieve the replenishment of primary and secondary air, and can also enhance combustion and improve combustion performance.

[0066] Optionally, refer to Figure 2 and Figure 3 As shown, the combustion top plate 21 can be placed on top of the combustion side plate 22. The combustion top plate 21 can be provided with a downwardly extending outer flange 211. The outer flanges 211 of two adjacent combustion top plates 21 can be spaced apart to form an outlet of the external gas channel 203. The outer flange 211 not only strengthens the burner unit 20 but also guides the gas to flow upward, thereby further improving the performance of the burner 100.

[0067] Continue to refer to Figure 2 and Figure 3 As shown, the combustion side panel 22 may include a first side panel 221 and a second side panel 222. The first side panel 221 and the second side panel 222 are horizontally spliced ​​together to form a hollow structure extending in the vertical direction. In other words, the first side panel 221 and the second side panel 222 may be horizontally distributed and spliced ​​together, and the structure formed by the splicing may be a hollow structure extending in the vertical direction. The combustion top panel 21 may be placed on top of the hollow structure.

[0068] The external gas passage 203 provided between two adjacent burner units 20 can be formed by separating at least the adjacent first side panels 221 and second side panels 222. The external gas passage 203 provided between the burner unit 20 and the housing 10 can be formed by separating at least one of the first side panels 221 and the second side panels 222 adjacent to the housing 10 from the housing 10. For example, for the burner unit 20 on the left, when the first side panel 221 is provided on the left, the first side panel 221 adjacent to the housing 10 can be separated from the housing 10 to form the external gas passage 203. For the burner unit 20 on the right, when the second side panel 222 is provided on the right, the second side panel 222 adjacent to the housing 10 can be separated from the housing 10 to form the external gas passage 203. The external gas passage 203 provided between two adjacent burner units 20 can be formed by separating the second side panel 222 of the burner unit 20 on the left and the first side panel 221 of the burner unit 20 on the right. This structure is easier to manufacture and has higher structural stability.

[0069] Reference Figures 1 to 3 As shown, in some embodiments of the present invention, the burner 100 further includes a liquid cooling pipe 30, which extends into the housing 10. The liquid cooling pipe 30 may be adjacent to the burner unit 20, or the liquid cooling pipe 30 may be connected to the burner unit 20.

[0070] In this way, the liquid cooling tube 30 can exchange heat with the burner unit 20, directly cooling the burner unit 20. When combustion occurs at the fire hole 201, the heat generated by radiation is transferred to the burner unit 20, indirectly exchanging heat with the liquid cooling tube 30. At the same time, the wind is supplied from the bottom of the burner unit 20 in the form of cold air, which can form an air-cooling effect, which is conducive to strengthening the liquid cooling effect. In other words, the wind can be converted into cold air after passing through the liquid cooling tube 30. While providing air for combustion, it also cools the burner unit 20 and the flame, thereby reducing the temperature around the burner unit 20, forming a stronger air-cooling effect, improving the water-cooling effect, and further increasing the load of the burner.

[0071] like Figure 2 and Figure 3 As shown, the liquid cooling pipe 30 is closer to the combustion hole 201 than the inlet of the internal gas channel 202. In this case, the liquid cooling pipe 30 can be arranged on the upper portion of the burner unit 20. The liquid cooling pipe 30 can cool the upper portion of the burner 100, which has a higher temperature, thereby improving the cooling effect. Optionally, in some specific examples of the present invention, the liquid cooling pipe 30 is a water cooling pipe.

[0072] like Figure 5As shown, in some embodiments of the present invention, the air inlet 102 may include a first air inlet 1021 and a second air inlet 1022. The internal gas channel 202 may be in communication with the first air inlet 1021 so that gas can be introduced into the internal gas channel 202 through the first air inlet 1021. The second air inlet 1022 may be in communication with the external gas channel 203 so that gas can be introduced into the external gas channel 203 through the second air inlet 1022. The air intake of the internal gas channel 202 and the external gas channel 203 may be separated, which can reduce interference between the two channels, improve the air intake effect, and facilitate improved combustion performance.

[0073] Optionally, in some embodiments of the present invention, the burner 100 may have a first combustion mode and a second combustion mode, and the combustion power of the burner 100 in the first combustion mode may be lower than the combustion power of the burner 100 in the second combustion mode. The second air port 1022 may not introduce gas into the external gas passage 203 in the first combustion mode, but may introduce gas into the external gas passage 203 in the second combustion mode.

[0074] Thus, in the first combustion mode with relatively low combustion power, gas, such as primary air and fuel gas, can be introduced through the internal gas passage 202, and the burner unit 20 can burn with the supply of primary air. In the second combustion mode with relatively high combustion power, gas can be introduced not only through the internal gas passage 202 but also through the external gas passage 203, such as secondary air, and the burner unit 20 can burn fuel gas at the combustion hole 201 with the supply of primary and secondary air.

[0075] It is understandable that, in order to facilitate the introduction of gas, an injection structure for injecting gas into the internal gas channel 202 may be provided at the inlet end of the internal gas channel 202. For example, a nozzle for injecting gas into the internal gas channel 202 is provided at the inlet end of the internal gas channel 202. At this time, the internal gas channel 202 may constitute a channel of atmospheric natural injection combustion principle. When the gas is sprayed into the internal gas channel 202 from the nozzle, an air injection is performed at the Adam's apple of the internal gas channel 202, and the primary air may enter the internal gas channel 202 under the action of the injection. In the process of the gas flowing upward, the gas and the primary air will be fully mixed, and combustion will occur at the combustion fire hole 201. Figure 3 In the figure, A represents the inner flame and B represents the induced combustion gas. In the above structure, the stability of the inner flame generated during combustion at the combustion hole 201 is determined by the primary air. During enhanced combustion, only the secondary air is increased, while the primary air is slightly reduced, which is more conducive to ensuring combustion stability.

[0076] like Figure 1As shown, the upper portion of the burner unit 20 has a width direction and a length direction perpendicular to each other in the horizontal direction. Figure 1 In the example shown, the width direction is the left-right direction and the length direction is the front-back direction. Along the width direction, outlets of the external gas channel 203 are respectively provided on both sides of the burner unit 20. The two outlets extend along the length direction and are not connected to each other.

[0077] The housing 10 of the burner 100 according to the embodiment of the present invention is described below in conjunction with some embodiments of the present invention. The housing 10 provides a new burner frame that can effectively provide the burner unit 20 with the air required for combustion and control the air required for combustion.

[0078] like Figure 4 and Figure 5 As shown, a housing 10 according to an embodiment of the present invention may include side panels 11 and an air distribution plate 12. The side panels 11 may enclose a vertically continuous installation space for mounting a burner unit 20 of a burner 100. The air distribution plate 12 may block the lower opening of the installation space and be located below the burner unit 20. The air distribution plate 12 and the side panels 11 may define a housing cavity 101.

[0079] like Figure 5 and Figure 6 As shown, the air distribution plate 12 is provided with a first air port 1021 and a second air port 1022. The first air port 1021 communicates with the internal gas channel 202 within the burner unit 20, so that gas is introduced into the internal gas channel 202 through the first air port 1021. The external gas channel 203 located on the side of the burner unit 20 communicates with the second air port 1022, so that gas is introduced into the external gas channel 203 through the second air port 1022. The first air port 1021 and the second air port 1022 are spaced apart to reduce interference between the external gas channel 203 and the internal gas channel 202.

[0080] The housing 10 of the burner 100 according to an embodiment of the present invention has side panels 11 and air distribution plates 12, which not only serve to distribute and control air, but also to precisely distribute the air, optimizing and enhancing combustion. Furthermore, the air distribution plates 12 can confine the burner unit 20 within, providing a stable and reliable installation position for the burner unit 20. During combustion, the burner unit 20 can be supplied with air not only through the internal gas channel 202 but also through the external gas channel 203. This allows the air utilization rate to approach 100%, achieving enhanced combustion effects, improving combustion conditions, and improving combustion performance. In some embodiments, combustion intensity can be enhanced by 50%. Furthermore, the housing 10 can also serve as an overall collection and transportation mechanism, helping to reduce costs and volume.

[0081] In the embodiment of the present invention, there is no special limitation on the number of burner units 20 provided in the housing, and the number can be one or more. Figures 1 to 3 In the illustrated embodiment, a plurality of burner units 20 can be arranged in the installation space, and the plurality of burner units 20 can be arranged in sequence along the left-right direction. The first air outlet 1021 can include a plurality, and the second air outlet 1022 can also include a plurality. The plurality of first air outlets 1021 and the plurality of second air outlets 1022 can be arranged alternately along the arrangement direction, that is, the plurality of first air outlets 1021 and the plurality of second air outlets 1022 can be arranged alternately along the left-right direction, with a second air outlet 1022 provided between two adjacent first air outlets 1021, and a first air outlet 1021 provided between two adjacent second air outlets 1022. Among them, the plurality of first air outlets 1021 are connected to the internal gas passages 202 of the plurality of burner units 20 in a one-to-one correspondence. In this way, the internal gas passage 202 of each burner unit 20 can introduce gas through the corresponding first air outlet 1021, and the gas flow effect is good.

[0082] Optionally, refer to Figure 5 and Figure 6 As shown, each first air outlet 1021 may include multiple air holes 1020, which may be spaced apart and distributed along the front-to-back direction. This disperses the incoming air and is more compatible with the structure of the burner unit 20 in some embodiments. For example, a one-to-one correspondence with the air distribution rods of the burner unit 20 can provide a better air distribution effect.

[0083] like Figure 6 As shown, the second air outlet 1022 can extend in the front-to-back direction into a long strip. The second air outlet 1022 includes a first section 1023 and a second section 1024, which are arranged alternately and interconnected along the front-to-back direction. The width of the first section 1023 in the left-to-right direction is smaller than the width of the second section 1024 in the left-to-right direction. In the front-to-back direction, the first section 1023 corresponds to the air holes 1020, and the second section 1024 is located between two adjacent air holes 1020. This structural layout is more rational, not only facilitating the installation of the burner unit 20 and the air distribution plate 12, but also allowing for a relatively larger opening of the second air outlet 1022, thereby increasing the amount of air entering.

[0084] Continue to refer to Figure 6 As shown, the air hole 1020 can be a circular hole, which is more conducive to air intake and, in some embodiments, is also convenient for placing a nozzle, which is conducive to uniformly injecting gas.

[0085] According to some embodiments of the present invention, Figure 1As shown, the side panel 11 may be provided with a partition structure 40 that can be used to separate multiple burner units 20. This not only enhances the installation reliability of the burner units 20, but also facilitates separating the multiple burner units 20 at predetermined intervals, positioning the burner units 20 at a predetermined spacing, and forming a stable and reliable combustion structure. The present invention does not impose any particular restrictions on the specific structure of the partition structure 40, as long as it can achieve the purpose of separating the multiple burner units 20.

[0086] Reference Figure 1 、 Figure 4 and Figure 5 As shown, in some embodiments of the present invention, the partition structure 40 may include a partition flange 41, which is disposed at the upper end of the side panel 11 and extends into the installation space. The partition flange 41 may abut between two adjacent burner units 20. This allows the partition flange 41 to separate two adjacent burner units 20, providing a good separation effect and facilitating installation of the partition structure 40.

[0087] Furthermore, an outlet for the external gas passage 203 can be formed between the upper portions of two adjacent burner units 20. Separating flanges 41 are provided at the front and rear edges of the upper end of the side panel 11. The two separating flanges 41 cooperate with the burner units 20 to separate the two adjacent outlets. In other words, the separating flanges 41 can cooperate with each burner unit 20 to isolate the outlets of the external gas passage 203 located on both sides of the burner unit 20. In this way, the burner 100 forms a stable ignition at both ends of the burner unit 20. Once the flame is transmitted, it can mate with the first air port 1021 of the air distribution plate 12 for introducing primary air, which is more conducive to comprehensive performance control.

[0088] like Figure 4 、 Figure 5 and Figure 7 As shown, each separation flange 41 can include multiple separation tongues 411, which can be distributed along the left-right direction. Adjacent burner units 20 can be separated by the separation tongues 411. Specifically, during manufacturing, the shape of the separation tongues 411 can be aligned with the shape of the joints between the burner units 20, which facilitates manufacturing and effectively separates the burner units 20.

[0089] Further, refer to Figure 1 and Figure 4As shown, a burner unit 20 can be provided between every two partition tongues 411, and the roots of the two adjacent partition tongues 411 are separated to form a positioning gap 401. The positioning gap 401 can be used to position the burner unit 20 in the up and down directions, so that the burner unit 20 can be installed more accurately in the up and down directions, reducing the occurrence of skew, and regardless of the bumps during transportation or the impact during handling, the burner unit 20 is relatively firm and the performance of the burner 100 is more stable.

[0090] In addition, in addition to the positioning gap 401, the burner unit 20 can also be positioned by other structures. Figure 1 、 Figure 4 and Figure 7 As shown, in some embodiments of the present invention, the side panel 11 is further provided with a positioning structure 50, which can be used to position the burner unit 20 in the vertical direction. Furthermore, the positioning structure 50 can include a positioning hole 51 extending from top to bottom along the side panel 11. The burner unit 20 can be inserted into the positioning hole 51 to cooperate with the positioning hole 51 to achieve vertical positioning, resulting in effective positioning and more reliable installation of the burner unit 20.

[0091] Optionally, at least one of the front and rear sides of the installation space may be provided with a positioning hole 51, with at least two positioning holes 51 corresponding to each burner unit 20. This allows the burner unit 20 to be positioned using multiple positioning holes 51, resulting in better positioning. The two positioning holes 51 may be provided on the same side of the housing 10 or on different sides, allowing for flexible placement based on practical needs.

[0092] like Figure 7 and Figure 10 As shown, the lower end of the side panel 11 can be provided with a positioning flange 1101, which extends into the installation space. The positioning flange 1101 can be used to position the bottom of the burner unit 20. This can further improve the installation reliability and accuracy of the burner unit 20.

[0093] Reference Figure 1 、 Figure 4 、 Figure 7 and Figure 8 As shown, the upper portion of the side panel 11 is provided with a mounting portion 60 for mounting an ignition pin 610. This allows the ignition pin 610 and the burner unit 20 to maintain a stable and precise position for ignition and feedback, thereby improving combustion efficiency. The specific structure of the mounting portion 60 is not particularly limited. Alternatively, the mounting portion 60 may comprise a mounting hole into which a threaded fastener can be inserted to connect the ignition pin 610 to the side panel 11, providing a reliable mounting structure and convenient installation.

[0094] The present invention imposes no particular limitation on the connection method between the air distribution plate 12 and the side panels 11. Optionally, in some embodiments of the present invention, one of the front and rear ends or the left and right ends of the air distribution plate 12 may be threadedly connected to the side panels 11, while the other may be abutted against the side panels 11. In other words, the front and rear ends of the air distribution plate 12 may be threadedly connected to the side panels 11, while the left and right ends may be abutted against the side panels 11; or the left and right ends of the air distribution plate 12 may be threadedly connected to the side panels 11, while the front and rear ends may be abutted against the side panels 11. This structure not only provides a more reliable connection but also facilitates the connection operation.

[0095] like Figure 5 As shown, according to some embodiments of the present invention, the side panel 11 may include a front panel 111, a rear panel 112, a left panel 113, and a right panel 114. The front panel 111 and the rear panel 112 are spaced apart from each other in front and back directions. The left panel 113 is located on the left side of the front panel 111. The front edge of the left panel 113 is connected to the left edge of the front panel 111, and the rear edge of the left panel 113 is connected to the left edge of the rear panel 112. The right panel 114 is located on the right side of the front panel 111. The front edge of the right panel 114 is connected to the right edge of the front panel 111, and the rear edge of the right panel 114 is connected to the right edge of the rear panel 112. The lower ends of the front panel 111, the rear end of the left panel 113, and the right end of the right panel 114 are all connected to the air distribution plate 12. In this way, the side panel 11 can be enclosed by the front side panel 111, the right side panel 114, the left side panel 113 and the right side panel 114 and the air distribution plate 12 to form a frame structure with an open top, and the burner unit 20 can be stably installed inside.

[0096] Optionally, the adjacent edges of the front side panel 111, the rear side panel 112, the left side panel 113 and the right side panel 114 can be connected by threaded fasteners. Figure 4 and Figure 5 As shown, the left and right edges of the front side plate 111 and the left and right edges of the rear side plate 112 can be respectively provided with mounting flanges, and screw holes can be provided on the mounting flanges. In this way, the strength of the front side plate 111 and the rear side plate 112 can be strengthened, and the installation reliability and sealing performance can be improved.

[0097] like Figure 5 、 Figure 7 and Figure 8 As shown, a positioning gap 401 and two positioning holes 51 extending in the vertical direction are provided on the front side plate 111 and the rear side plate 112 at the same vertical line from top to bottom, so as to strictly control the gas.

[0098] The water heating device according to the embodiment of the present invention includes the burner 100 according to the embodiment of the present invention, or the housing 10 of the burner 100 according to the embodiment of the present invention. The water heating performance of the water heating device according to the embodiment of the present invention is improved.

[0099] Other structures and operations of the water heating device according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0100] Throughout this specification, reference to terms such as "embodiment," "specific embodiment," and "example" indicates that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples without interference or contradiction.

Claims

1. A burner housing, characterized in that: include: A side panel, wherein the side panel encloses and forms an installation space that passes through from top to bottom, so as to install a burner unit of the burner; an air distribution plate, the air distribution plate blocking the lower end opening of the installation space and being suitable for being located below the burner unit, the air distribution plate being provided with a first air port and a second air port which are spaced apart and used for air intake, the first air port being communicated with an internal gas passage in the burner unit, and the second air port being communicated with an external gas passage located at a side of the burner unit; The second air outlet extends in a long strip shape along the front-to-back direction, and includes a first section and a second section alternately arranged along the front-to-back direction and connected to each other, and the width of the first section along the left-to-right direction is smaller than the width of the second section along the left-to-right direction.

2. The burner housing according to claim 1, characterized in that: The installation space is suitable for arranging a plurality of burner units arranged in sequence along the left-right direction. The first air outlet and the second air outlet respectively include a plurality of first air outlets and a plurality of second air outlets, and the plurality of first air outlets and the plurality of second air outlets are alternately arranged along the arrangement direction. The plurality of first air outlets are connected one-to-one with the internal gas passages of the plurality of burner units.

3. The burner housing according to claim 2, characterized in that: Each of the first air outlets includes a plurality of air holes, and the plurality of air holes are spaced apart and distributed along the front-to-back direction.

4. The burner housing according to claim 3, characterized in that: in, Along the front-to-back direction, the first section corresponds to the position of the air holes and the second section is located between two adjacent air holes.

5. The housing of the burner according to claim 1, characterized in that: The side panel is provided with a partition structure, and the partition structure is used to separate a plurality of the burner units.

6. The burner housing according to claim 5, characterized in that: The partition structure comprises a partition flange which is arranged at the upper end of the side panel and extends into the installation space, and the partition flange is suitable for stopping between two adjacent burner units.

7. The burner housing according to claim 6, characterized in that An outlet of the external gas channel is formed between the upper parts of two adjacent burner units, and the front edge and the rear edge of the upper end of the side panel are respectively provided with the partition flanges, and the two partition flanges cooperate with the burner units to separate the two adjacent outlets.

8. The burner housing according to claim 7, characterized in that Each of the partition flanges includes a plurality of partition tongues distributed along the left-right direction, and two adjacent burner units are separated by the partition tongues.

9. The burner housing according to claim 8, characterized in that One burner unit is arranged between every two of the partition tongues, and the roots of two adjacent partition tongues are spaced apart to form a positioning gap for positioning the burner unit in the up-down direction.

10. The housing of the burner according to claim 1, characterized in that The side panel is also provided with a positioning structure for positioning the burner unit in the up-down direction.

11. The burner housing according to claim 10, characterized in that The positioning structure includes a positioning hole extending from top to bottom along the side panel.

12. The burner housing according to claim 11, characterized in that The positioning holes are arranged on at least one of the front side and the rear side of the installation space, and at least two positioning holes are provided corresponding to each burner unit.

13. The burner housing according to claim 1, characterized in that A positioning flange extending into the installation space is provided at the lower end of the side panel, and the positioning flange is used to position the bottom of the burner unit.

14. The burner housing according to claim 1, characterized in that The upper part of the side panel is provided with a mounting portion for mounting an ignition needle.

15. The housing of the burner according to any one of claims 1 to 14, characterized in that: The side panel comprises: front side panels; A rear side plate, wherein the front side plate and the rear side plate are spaced apart from each other in front and back; A left side panel, the left side panel is arranged on the left side of the front side panel, and the front edge and the rear edge of the left side panel are respectively connected to the left edge of the front side panel and the left edge of the rear side panel; The right side panel is arranged on the right side of the front side panel, and the front edge and the rear edge of the right side panel are respectively connected to the right edge of the front side panel and the right edge of the rear side panel, and two of the lower ends of the front side panel, the rear side panel, the left side panel and the right side panel are abutted against the air distribution plate, and the other two are threadedly connected to the air distribution plate.

16. A burner, characterized in that: A housing comprising a burner according to any one of claims 1-15.

17. A water heating device, characterized in that: A housing comprising a burner according to any one of claims 1-15.

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