Combustor, gas steaming and baking device and integrated stove

Abstract

The invention discloses a combustor, a fuel gas steaming and baking device and an integrated stove, the combustor comprises a gas mixing tank, a gas distribution disc and a combustion chamber, and the gas mixing tank is used for mixing fuel gas and air into combustion mixed gas; a flow equalizing cavity is formed in the gas distribution disc, a communication part communicated with the gas mixing tank is arranged on a bottom plate of the gas distribution disc, a plurality of flow distribution parts are sequentially arranged in the direction away from the communication part, and each flow distribution part is provided with at least one flow distribution rib. The width size of at least part of the shunting ribs adjacent to the communicating part is smaller than that of at least the other part of the shunting ribs away from the communicating part; the combustion chamber communicates with the gas distribution disc, is located on the side, away from the gas mixing tank, of the gas distribution disc and is used for providing a combustion space for combustion of the combustion mixed gas. Therefore, through the synergistic effect of the gas mixing tank, the gas distribution disc and the combustion chamber, the gas and air mixing effect can be enhanced in a limited space, the distribution uniformity of combustion mixed gas is improved, the combustor can consider the size, the combustion efficiency and the stability, and the cooking efficiency and effect are guaranteed.

Description

Technical Field

[0001] This application relates to the field of kitchen appliance technology, and in particular to a burner, a gas steam oven, and an integrated stove. Background Technology

[0002] Currently, most integrated cooktops on the market are equipped with steam ovens, which mostly use electric heating. However, due to limitations in electrical safety and power distribution, the power allocated to the steam generator is often relatively small. This is especially true since steam ovens need to perform both steaming and baking functions, further limiting the power of their heating elements and steam generators, thus affecting cooking performance and efficiency. In related technologies, using gas-fired steam generators can overcome these electrical safety limitations, significantly increasing the power of the steam generator and heating elements, thereby significantly improving cooking speed and results. To apply gas-fired steam generators to steam ovens and maximize the cooking cavity volume, the burner needs to be made into a relatively long and narrow rectangular structure. However, within this narrow and compact structure, it is difficult for the gas and air to mix thoroughly, and the distribution of the mixed gas inside the oven cavity is prone to unevenness, affecting combustion uniformity and heating efficiency, thus impacting cooking efficiency and results. Summary of the Invention

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, one objective of this application is to provide a burner that, through the synergistic action of a mixing tank, a gas distribution plate, and a combustion chamber, can enhance the mixing effect of gas and air within a limited space and improve the uniformity of the combustion mixture distribution, enabling the burner to balance size with combustion efficiency and stability, thus ensuring cooking efficiency and results.

[0004] This application also proposes a gas-fired steam oven with the above-mentioned burner.

[0005] This application also proposes an integrated stove having the above-mentioned gas-fired steam oven.

[0006] According to a first aspect embodiment of the present application, the burner includes: a mixing tank, a gas distribution plate, and a combustion chamber. The mixing tank is used to mix fuel gas and air into a combustion mixture. The gas distribution plate has a flow equalization chamber. A connecting portion communicating with the mixing tank is formed on the bottom plate of the gas distribution plate. A plurality of flow dividers are sequentially arranged in a direction away from the connecting portion. Each flow divider has at least one flow divider rib. The width of at least a portion of the flow divider ribs adjacent to the connecting portion is smaller than the width of at least another portion of the flow divider ribs away from the connecting portion. The combustion chamber communicates with the gas distribution plate and is located on the side of the gas distribution plate away from the mixing tank, and is used to provide combustion space for the combustion mixture.

[0007] According to the burner of this application, through the synergistic effect of the mixing tank, the gas distribution plate and the combustion chamber, the mixing effect of gas and air can be effectively enhanced in a limited space, and the uniformity of the distribution of the combustion mixture can be improved. Thus, even a burner with a narrow and elongated structure can have good combustion efficiency, combustion stability and energy saving, thereby improving cooking efficiency and effect.

[0008] According to some embodiments of this application, in the direction away from the connecting portion, the diversion portion includes a first diversion portion, a second diversion portion to an Nth diversion portion arranged sequentially, where N≥2, and the gap between adjacent diversion ribs in the Nth diversion portion is smaller than the gap between adjacent diversion ribs in the (N-1)th diversion portion.

[0009] Furthermore, each of the diversion sections includes multiple diversion ribs, and the diversion ribs in each of the diversion sections are arranged in groups, with the multiple groups of diversion ribs arranged opposite each other in the width direction of the base plate.

[0010] Furthermore, the burner also includes: a first flow equalization plate, which is disposed in the flow equalization cavity and located above the bottom plate. The first flow equalization plate has a through-hole area for the combustion mixture to pass through, and the through-hole area has a plurality of first through holes arranged in an array.

[0011] Furthermore, the via area includes: a first via area, and a second to Mth via areas arranged in pairs on both sides of the first via area, where M≥3, and the projection of the first via area coincides with the projection of the connecting portion in the height direction, and the projections of the second, third to Mth via areas coincide with the projections of the first diversion portion, the second diversion portion to the Nth diversion portion in the height direction, respectively.

[0012] Furthermore, the equivalent diameter of the first via within at least one of the via regions gradually decreases in the direction away from the connecting portion.

[0013] In some embodiments, from the second via region to the Mth via region, the equivalent diameter of the first via in the Mth via region is smaller than the equivalent diameter of the first via in the (M-1)th via region, and the equivalent diameter of the first via in the first via region is the smallest.

[0014] According to some embodiments of this application, the burner further includes: a second flow equalization plate, which covers the first flow equalization plate and is spaced apart from the first flow equalization plate, and the second flow equalization plate has a plurality of second through holes for the combustion mixture to pass through.

[0015] Furthermore, multiple second vias are evenly distributed in an array on the second flow equalization plate.

[0016] In some embodiments, the distance between the second flow equalization plate and the first flow equalization plate is 10mm to 30mm.

[0017] According to some embodiments of this application, a combustion metal layer is provided on the side of the second flow equalization plate opposite to the first flow equalization plate.

[0018] In some embodiments, the burner further includes an ignition element, one end of which protrudes from the bottom of the gas distribution plate, and the ignition element penetrates the gas distribution plate, the first flow equalization plate, and the second flow equalization plate along the height direction to selectively ignite the combustion metal layer.

[0019] According to some embodiments of this application, the mixing tank is provided with a mixing chamber, an air passage and a gas passage. One end of the air passage and one end of the gas passage are both connected to the inlet of the mixing chamber. The other end of the air passage is connected to the outside. The other end of the gas passage is connected to a gas supply device. Air and gas are mixed in the mixing chamber, and the outlet of the mixing chamber is connected to the connecting part.

[0020] Furthermore, the air passage is located on one side of the mixing chamber, and the gas passage is located on the opposite side of the mixing chamber.

[0021] According to a second aspect of this application, the gas-fired steam oven includes a burner as described in any of the above embodiments.

[0022] According to a third aspect of this application, the integrated stove includes the gas-fired steam oven described in the above embodiments.

[0023] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0024] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0025] Figure 1 This is an isometric view of a burner according to some embodiments of this application;

[0026] Figure 2 This is a front view of a burner according to some embodiments of this application;

[0027] Figure 3 This is a side view of a burner according to some embodiments of this application;

[0028] Figure 4 yes Figure 3Sectional view of AA;

[0029] Figure 5 This is a partial structural schematic diagram of a burner according to some embodiments of this application;

[0030] Figure 6 This is a schematic diagram of the flow divider on the air distribution plate according to some embodiments of this application;

[0031] Figure 7 This is a schematic diagram of a first flow equalizer according to some embodiments of this application;

[0032] Figure 8 This is a schematic diagram of a second flow equalizer according to some embodiments of this application.

[0033] Figure label:

[0034] 1000. Burner;

[0035] 1. Mixing tank;

[0036] 11. Mixing chamber;

[0037] 12. Air passage;

[0038] 13. Gas passage;

[0039] 2. Gas distribution plate;

[0040] 21. Base plate; 21a. First through hole;

[0041] 22. Connecting parts;

[0042] 23a. First branch section; 23b. Second branch section; 23c. Third branch section;

[0043] 231. Diversion ribs;

[0044] 3. First flow equalization plate;

[0045] 3a. First via area;

[0046] 3b. Second via area;

[0047] 3c, Third via area;

[0048] 3d, fourth via area;

[0049] 31a. First via;

[0050] 31b, Second through hole;

[0051] 4. Second flow equalizer;

[0052] 41a. Second via;

[0053] 41b, Third through hole;

[0054] 5. Ignition components;

[0055] 6. Fan. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0057] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0058] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0059] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0060] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0061] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0062] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0063] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0064] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0065] In this application, "multiple" means two or more (including two).

[0066] The following is for reference. Figures 1-8 This application describes a burner 1000, a gas-fired steam oven, and an integrated stove according to embodiments of the present application.

[0067] like Figures 1-3 As shown, according to the first aspect embodiment of the present application, the burner 1000 includes: a mixing tank 1, a gas distribution plate 2, and a combustion chamber.

[0068] The gas mixing tank 1 is used to mix gas and air into a combustion mixture. The gas distribution plate 2 is connected to the gas mixing tank 1. The gas distribution plate 2 has a flow equalization chamber. The bottom plate 21 of the gas distribution plate 2 has a connecting part 22 that is connected to the gas mixing tank 1. In the direction away from the connecting part 22, a plurality of flow dividers are arranged in sequence. Each flow divider has at least one flow divider rib 231. The width of at least a portion of the flow divider rib 231 adjacent to the connecting part 22 is smaller than the width of at least another portion of the flow divider rib 231 away from the connecting part 22. The combustion chamber is connected to the gas distribution plate 2 and is located on the side of the gas distribution plate 2 away from the gas mixing tank 1. It is used to provide combustion space for the combustion of the combustion mixture.

[0069] Specifically, the mixing tank 1 can introduce external air and fuel gas. Inside the mixing tank 1, the fuel gas and air can come into full contact and mix according to a preset mixing ratio to form a combustion mixture, which achieves premixing. This promotes the full mixing of fuel gas and air. The bottom plate 21 of the gas distribution plate 2 can have a connecting part 22 in the middle. The connecting part 22 connects the distribution plate to the mixing tank 1. After the fuel gas and air are premixed in the mixing tank 1, they can enter the gas distribution plate 2 through the connecting part 22. The flow equalization chamber of the gas distribution plate 2 can perform flow equalization and homogenization of the combustion mixture. Specifically, in the direction away from the connecting part 22, that is, in the direction extending from the middle of the bottom plate 21 towards both ends of the direction extending from the bottom plate 21, a plurality of flow-dividing parts are sequentially arranged inside the air distribution plate 2. Each flow-dividing part has at least one flow-dividing rib 231, and the width of at least some of the flow-dividing ribs 231 is different from the width of at least another part of the flow-dividing ribs 231, so as to form a non-uniformly distributed flow-dividing structure. This non-uniformly distributed flow-dividing structure can generate different flow fields in different areas within the air distribution plate 2. The flow-dividing ribs 231 adjacent to the connecting part 22 have a smaller width, which can... The combustion mixture entering the gas distributor 2 is rapidly slowed down and stabilized. This reduces uneven mixing caused by excessive flow velocity and lays the foundation for subsequent mixing. The wider diversion ribs 231, located away from the connecting portion 22, increase the diffusion area of ​​the combustion mixture as it bypasses them, helping to distribute the mixture evenly to both sides and corners of the gas distributor 2. Therefore, the variation in the width of the diversion ribs 231 significantly improves the uniformity of the combustion mixture distribution within the gas distributor 2. The combustion chamber of this application is connected to the gas distributor 2. After the combustion mixture undergoes diversion and homogenization treatment by the gas distributor 2, it can flow into the combustion chamber for combustion.

[0070] It should be noted that the mixing tank 1, the gas distribution plate 2, and the combustion chamber can be arranged sequentially from bottom to top in the height direction. In this way, due to the characteristic that the density of the combustion mixture is less than that of air, the combustion mixture can flow upward and automatically enter the gas distribution plate 2 and the combustion chamber for combustion and heating.

[0071] According to the burner 1000 of this application, through the synergistic effect of the mixing tank 1, the gas distribution plate 2 and the combustion chamber, the mixing effect of gas and air can be effectively enhanced in a limited space, and the uniformity of the distribution of the combustion mixture can be improved. Thus, even a burner 1000 with a narrow and elongated structure can have good combustion efficiency, combustion stability and energy saving, thereby improving cooking efficiency and effect.

[0072] like Figure 6 As shown, according to some embodiments of this application, in the direction away from the connecting portion 22, the diversion portion includes a first diversion portion 23a, a second diversion portion 23b to an Nth diversion portion arranged sequentially, where N≥2, and the gap between adjacent diversion ribs 231 in the Nth diversion portion is smaller than the gap between adjacent diversion ribs 231 in the (N-1)th diversion portion.

[0073] Specifically, the first branch section 23a, the second branch section 23b to the Nth branch section are arranged sequentially away from the connecting section 22. The gap between adjacent branch ribs 231 in the Nth branch section is smaller than the gap between adjacent branch ribs 231 in the (N-1)th branch section. In this way, on the one hand, the relatively small gap in the Nth branch section can increase the flow velocity of the combustion mixture through the gap area, further enhancing the mixing effect of the combustion mixture. On the other hand, by setting the gap between adjacent branch ribs 231 in the Nth branch section to be smaller than the gap between adjacent branch ribs 231 in the (N-1)th branch section, the uniformity of the combustion mixture distribution can also be improved, thereby improving the combustion uniformity and stability.

[0074] like Figure 5 and Figure 6 As shown, according to some embodiments of this application, each diversion section includes a plurality of diversion ribs 231, the diversion ribs 231 in each diversion section are arranged in groups, and the multiple groups of diversion ribs 231 are arranged opposite to each other in the width direction of the base plate 21.

[0075] Specifically, the flow divider ribs 231 in each flow divider section are arranged in groups, and the multiple groups of flow divider ribs 231 are arranged opposite each other in the width direction of the base plate 21. For example, the flow divider ribs 231 in each flow divider section can be arranged in two groups, with the two groups of flow divider ribs 231 facing each other in the width direction of the base plate 21. The method of arranging the multiple groups of flow divider ribs 231 opposite each other in the width direction of the base plate 21 helps to form a complex flow field structure in the flow divider section. When the combustion mixture passes through the flow divider section, it can be disturbed by the flow divider ribs 231 from different directions, thereby generating more eddies and turbulence. These eddies and turbulence help to further enhance the mixing effect. At the same time, since the distribution of the flow divider rib groups 231 is regular, it can also avoid the formation of excessively large dead zones or eddy zones in the flow divider section, thereby ensuring that the combustion mixture can flow smoothly to the next stage.

[0076] Preferably, the flow divider ribs 231 in each flow divider section are arranged in two groups. The two groups of flow divider ribs 231 are respectively arranged at both ends of the bottom plate 21 in the width direction, and the flow divider ribs 231 in the two groups of flow divider ribs 231 are opposite to each other to ensure that the combustion mixture has good flow performance and uniform distribution.

[0077] In some specific embodiments of this application, the flow divider includes a first flow divider 23a, a second flow divider 23b, and a third flow divider 23c. The number of the first flow divider 23a, the second flow divider 23b, and the third flow divider 23c is configured as two. The two first flow dividers 23a, the two second flow dividers 23b, and the two third flow dividers 23c are respectively located on both sides of the connecting part 22 along the length direction of the bottom plate 21. The flow divider ribs 231 in each of the first flow dividers 23a, the second flow divider 23b, and the third flow divider 23c are arranged in two groups. Each first flow divider 23a includes two flow divider ribs 231, each second flow divider 23b includes six flow divider ribs 231, and each third flow divider 23c includes twelve flow divider ribs 231, so as to form a good flow field structure in the flow divider to guide the combustion mixture to flow evenly in the flow divider.

[0078] like Figure 4 and Figure 7 As shown, according to some embodiments of this application, the burner 1000 further includes: a first flow equalization plate 3, which is disposed in the flow equalization cavity and located above the bottom plate 21. The first flow equalization plate 3 has a through-hole area for the combustion mixture to pass through, and a plurality of first through holes 31a arranged in an array are formed in the through-hole area.

[0079] Specifically, the first flow equalization plate 3 can be set above the base plate 21, covering the top of the multiple flow dividers 231. The first flow equalization plate 3 has a certain thickness in the height direction. A perforated area is opened on the first flow equalization plate 3, and multiple first through holes 31a are arranged in an array in the perforated area. It can be understood that the first through holes 31a can enable the combustion mixture flowing through the flow divider to flow from below the first flow equalization plate 3 to above the first flow equalization plate 3. The array of first through holes 31a can make the combustion mixture undergo multiple dispersion and re-convergence processes when passing through the first flow equalization plate 3. This process helps to break the local non-uniformity that may exist in the combustion mixture, and can further optimize the mixing and homogenization of the combustion mixture in the flow equalization cavity. In this way, the combustion mixture can be distributed as evenly as possible before entering the combustion chamber, so as to improve the stability and reliability of subsequent combustion, and thus help to improve the overall performance and efficiency of the burner 1000.

[0080] It should be noted that the above-mentioned multiple first vias 31a "distributed in an array" can refer to the multiple first vias 31a being arranged in a uniform manner in rows and columns at a certain interval.

[0081] like Figure 7 As shown, according to some embodiments of this application, the via region includes: a first via region 3a, and a second via region 3b to the Mth via region located on both sides of the first via region 3a in pairs, where M≥3. The projection of the first via region 3a onto the connecting portion 22 in the height direction coincides with the projection of the second via region 3b, the third via region 3c to the Mth via region in the height direction, respectively.

[0082] Specifically, the via region is divided into multiple areas, including a first via region 3a and two second via regions 3b to Mth via regions arranged in pairs on both sides thereon. The first via region 3a coincides with the projection of the connecting portion 22 in the height direction. The combustion mixture above the connecting portion 22 can flow out from the multiple first vias 31a of the first via region 3a to achieve homogenization of the combustion mixture in the middle region. Similarly, the second via regions 3b to Mth via regions coincide with the projections of the first branching portions 23a to Nth branching portions in the height direction, respectively. For example, the projections of the first branching portions 23a to third branching portions 23c coincide with the projections of the second via regions 3b to fourth via regions 3d in the height direction. The combustion mixture from the first branching portions 23a to Nth branching portions can flow out from the first vias 31a of the corresponding second via regions 3b to Mth via regions above, to achieve homogenization of the combustion mixture from the middle to both sides. Therefore, by finely dividing the perforated area and structurally corresponding it with the flow divider, the homogenization process of the combustion mixture can be further optimized, providing a more stable and reliable supply of combustion mixture for the subsequent combustion process.

[0083] It should be noted that the projection of the first through-hole area 3a to the Mth through-hole area coincides with the projection of the connecting part 22 and the flow branch in the height direction, which means that the projection of the through-hole area coincides with the projection of the connecting part 22 and the flow branch area. In this application, the projection of each first through-hole 31a in the first through-hole area 3a to the Mth through-hole area and each flow branch rib 231 in the first flow branch 23a to the Nth flow branch in the height direction is staggered. The projection of the first through-hole 31a can be located between two adjacent flow branch ribs 231 in the extension direction of the base plate 21, or between two opposite flow branch ribs 231 in the width direction of the base plate 21, or between the flow branch rib 231 and the edge of the base plate 21.

[0084] Preferably, in the direction of the connecting portion 22 toward the extension direction of the base plate 21, a row of first through holes 31a, spaced apart in the width direction of the base plate 21, is correspondingly arranged between two adjacent diverting ribs 231 and two other diverting ribs 231 opposite to the two diverting ribs 231 in the width direction of the base plate 21. Between the diverting rib 231 at the very end of the extension direction of the base plate 21 and the edge of the base plate 21, a row of first through holes 31a, spaced apart in the width direction of the base plate 21, is also correspondingly arranged. Each row of first through holes 31a has the same number and they are one-to-one opposite in the extension direction of the base plate 21. This arrangement effectively utilizes the space within the flow equalization chamber, allowing the combustion mixture to be homogenized in the corresponding through hole areas after passing through the connecting portion 22 and the diverting portion, thereby improving mixing efficiency and uniformity.

[0085] like Figure 7 As shown, according to some embodiments of this application, the equivalent diameter of the first via 31a in at least one via region gradually decreases in the direction away from the connecting portion 22.

[0086] Specifically, the gradually decreasing diameter of the first through-hole 31a can act as a "throttling" mechanism. This can be understood as follows: in the direction away from the connecting portion 22, the decreasing diameter of the first through-hole 31a results in greater resistance as the combustion mixture passes through, which helps to slow down the flow velocity of the combustion mixture, allowing it more time for further mixing and homogenization. Simultaneously, when the combustion mixture passes through the relatively small first through-hole 31a, the smaller aperture increases the collision frequency between molecules, helping to promote the mixing of fuel gas and air in the combustion mixture, further enhancing the mixing effect. Furthermore, different equivalent diameters of the first through-hole 31a also help to increase the complexity of the flow field structure formed within the flow equalization cavity, increasing the difference in the combustion mixture passing through first through-holes 31a with different diameters. This helps to form more eddies and turbulence within the flow equalization cavity, further promoting the mixing and homogenization of the combustion mixture.

[0087] like Figure 7As shown, according to some embodiments of this application, from the second via region 3b to the Mth via region, the equivalent diameter of the first via 31a in the Mth via region is smaller than the equivalent diameter of the first via 31a in the (M-1)th via region, and the equivalent diameter of the first via 31a in the first via region 3a is the smallest.

[0088] Specifically, from the second via region 3b to the Mth via region, the equivalent diameter of the first via 31a in each subsequent via region is smaller than the equivalent diameter of the first via 31a in the previous via region, and the equivalent diameter of the first via 31a in the first via region 3a is the smallest. Since the projection of the first through-hole region 3a and the connecting part 22 in the height direction coincides, the first through-hole region 3a is the initial flow area after the combustion mixture enters the flow equalization cavity through the connecting part 22. By setting the diameter of the first through-hole 31a in the first through-hole region 3a to the minimum, the combustion mixture will encounter relatively large resistance after entering the flow equalization cavity upward, thereby slowing down its flow velocity and providing sufficient time for the subsequent mixing and homogenization process. As the combustion mixture flows away from the connecting part 22 to the second through-hole region 3b, the diameter of the first through-hole 31a gradually decreases, which allows the combustion mixture to be throttled to a certain extent when passing through each through-hole region, thereby forming different flow velocity and pressure distributions in different through-hole regions. This differential flow condition is beneficial to improving the distribution uniformity of the combustion mixture.

[0089] According to the first flow equalization plate 3 of this application, by setting the arrangement of the first through holes 31a, and by setting the equivalent diameter of the first through holes 31a to gradually decrease from the second through hole region 3b to the Mth through hole region, and combined with the design of the minimum diameter of the first through holes 31a in the first through hole region 3a, the flow of the combustion mixture can be regulated and guided so as to achieve the best combustion conditions when the combustion mixture enters the combustion chamber, thereby effectively improving the combustion efficiency and performance of the burner 1000.

[0090] like Figure 4 and Figure 8 As shown, according to some embodiments of this application, the burner 1000 further includes: a second flow equalization plate 4, which covers the first flow equalization plate 3 and is spaced apart from the first flow equalization plate 3, and the second flow equalization plate 4 has a plurality of second through holes 41a for the combustion mixture to pass through.

[0091] Specifically, the second flow equalization plate 4 can cover the first flow equalization plate 3, and the second flow equalization plate 4 and the first flow equalization plate 3 are spaced a certain distance apart in the height direction. Thus, the second flow equalization plate 4 and the first flow equalization plate 3 can define an additional flow equalization space. The combustion mixture in this space is subjected to the combined action of the two flow equalization plates and can undergo a more complex flow and mixing process to enhance the mixing effect of the combustion mixture. Among them, the second flow equalization plate 4 has multiple through-holes 41a. After the combustion mixture flows through the first through-holes 31a to the top of the first flow equalization plate 3, it can flow out of the area between the first flow equalization plate 3 and the second flow equalization plate 4 through the second through-holes 41a on the second flow equalization plate 4 and flow to the top of the second flow equalization plate 4. During this process, the second flow equalization plate 4 can further homogenize the combustion mixture flowing out of the first flow equalization plate 3 to ensure that the distribution of the combustion mixture has reached a very high degree of uniformity before entering the combustion chamber.

[0092] like Figure 8 As shown, according to some embodiments of this application, a plurality of second vias 41a are evenly distributed in an array on the second flow equalization plate 4.

[0093] Specifically, multiple second through holes 41a can be evenly distributed in rows and columns on the second flow equalization plate 4, ensuring that each area on the second flow equalization plate 4 has a uniform distribution of second through holes 41a. This allows the combustion mixture to be uniformly dispersed and mixed when passing through the second flow equalization plate 4, thus avoiding situations where the local concentration of the combustion mixture is too high or too low, and further improving the uniformity of the combustion mixture. In addition, the array-like uniform distribution of the second through holes 41a also enables the combustion mixture to form a stable flow pattern when passing through the second through holes 41a, optimizing the flow characteristics of the combustion mixture. This helps to reduce negative impacts such as noise and vibration, and improves the stability and reliability of the burner 1000.

[0094] like Figure 4 As shown, according to some embodiments of this application, the distance between the second flow equalization plate 4 and the first flow equalization plate 3 is 10mm to 30mm.

[0095] Specifically, if the distance between the second flow equalization plate 4 and the first flow equalization plate 3 is too small, for example, if the distance between the second flow equalization plate 4 and the first flow equalization plate 3 is set to 5mm or 8mm, the flow of the combustion mixture between the two flow equalization plates may be restricted, preventing sufficient diffusion and thus affecting the mixing effect. If the distance between the second flow equalization plate 4 and the first flow equalization plate 3 is too large, for example, if the distance between the second flow equalization plate 4 and the first flow equalization plate 3 is set to 35mm or 40mm, the combustion mixture may become too dispersed during flow, making it difficult to achieve effective homogenization. In this application, the distance between the second flow equalization plate 4 and the first flow equalization plate 3 is set in the range of 10mm to 30mm. This appropriate distance allows the combustion mixture to undergo sufficient dispersion and mixing while maintaining a certain flow velocity and stability when passing through the two flow equalization plates. This helps to form a relatively stable flow equalization space between the first flow equalization plate 3 and the second flow equalization plate 4, improving the homogenization of the combustion mixture within it.

[0096] It should be noted that the 10mm to 30mm range mentioned above is a preferred embodiment. The spacing between the second flow equalization plate 4 and the first flow equalization plate 3 can also be flexibly adjusted according to the specific burner 1000 design and usage requirements. For example, in scenarios requiring higher mixing efficiency, the spacing can be appropriately reduced, while in scenarios with relatively high requirements for flow resistance, the spacing can be appropriately increased.

[0097] like Figure 4 As shown, according to some embodiments of this application, a combustion metal layer is provided on the side of the second flow equalization plate 4 facing away from the first flow equalization plate 3.

[0098] Specifically, the combustion metal layer can be constructed from a metallic material with high thermal conductivity, high melting point, and good stability, such as stainless steel, nickel alloy, or titanium alloy. The combustion metal layer provides a stable combustion surface to promote complete combustion of the gas mixture and helps to evenly transfer the heat generated by combustion to other pre-set parts of the burner 1000. Since the combustion metal layer is located on the side of the second flow equalization plate 4 opposite to the first flow equalization plate 3, it allows the gas mixture to directly contact the combustion metal layer for combustion after being homogenized by the first flow equalization plate 3 and the second flow equalization plate 4. This ensures that the gas mixture has good homogeneity before combustion, thereby contributing to improved combustion efficiency and stability.

[0099] Furthermore, the presence of the combustion metal layer enhances the durability and safety of the burner 1000. Because the combustion process generates high temperatures and pressures, the combustion metal layer can withstand these extreme conditions without easily being damaged, thus extending the service life of the burner 1000. Simultaneously, the combustion metal layer can also, to some extent, prevent backfire or combustion instability during the combustion process, improving the safety of the burner 1000.

[0100] It should be noted that the combustion metal layer is evenly distributed on the side of the second flow equalization plate 4 away from the first flow equalization plate 3 to ensure the combustion area and combustion uniformity of the burner 1000.

[0101] like Figures 1-5 As shown, according to some embodiments of this application, the burner 1000 further includes an ignition element 5, one end of which protrudes from the bottom of the gas distribution plate 2, and the ignition element 5 penetrates the gas distribution plate 2, the first flow equalization plate 3 and the second flow equalization plate 4 along the height direction to selectively ignite the combustion metal layer.

[0102] Specifically, the ignition element 5 penetrates the multi-layer structure. The bottom plate 21, the first flow equalization plate 3, and the second flow equalization plate 4 of the gas distribution plate 2 can be respectively formed with a first through hole 21a, a second through hole 31b, and a third through hole 41b suitable for at least part of the ignition element 5 to pass through. The ignition element 5 has a certain length. One end of the ignition element 5 in the extension direction protrudes and is set at the bottom end of the gas distribution plate 2. It can be understood that one end of the ignition element 5 in the extension direction is located on the side of the bottom plate 21 away from the first flow equalization plate 3 in the thickness direction, and protrudes from the lower surface of the bottom plate 21, so as to activate the ignition element 5 (such as by electric spark or high temperature flame). The other end of the ignition element 5 in the extension direction can be located above the combustion metal layer on the second flow equalization plate 4. When the ignition element 5 is activated, it can generate enough heat and transfer the heat to the combustion metal layer to achieve successful ignition of the combustion metal layer.

[0103] Furthermore, in a specific embodiment of this application, the bottom plate 21, the first flow equalization plate 3, and the second flow equalization plate 4 of the gas distribution plate 2 can all be formed with at least partially through holes 21a, 31b, and 41b suitable for the ignition element 5. The first through hole 21a, the second through hole 31b, and the third through hole 41b are located on the same side of the burner 1000 in the length direction, and their projections in the height direction overlap, so as to ensure that the gas mixture can be fully and evenly mixed in the flow equalization chamber while improving the ease of installation and maintenance of the ignition element 5.

[0104] like Figure 1 As shown, according to some embodiments of this application, the mixing tank 1 is provided with a mixing chamber 11, an air passage 12 and a gas passage 13.

[0105] One end of the air passage 12 and one end of the gas passage 13 are connected to the inlet of the mixing chamber 11. The other end of the air passage 12 is connected to the outside, and the other end of the gas passage 13 is connected to the gas supply equipment. Air and gas are mixed in the mixing chamber 11, and the outlet of the mixing chamber 11 is connected to the connecting part 22.

[0106] Specifically, both the air passage 12 and the gas passage 13 have a certain extension length. One end of the air passage 12 is connected to the inlet of the mixing chamber 11 in the extension direction, and the other end is open to the outside to draw in external air. Through the air passage 12, external air can be introduced into the mixing chamber 11. One end of the gas passage 13 is connected to the inlet of the mixing chamber 11 in the extension direction, and the other end is connected to the gas supply equipment (such as a gas cylinder, gas pipeline, etc.) to draw in gas. Through the gas passage 13, gas can be introduced into the mixing chamber 11. There can be one or more mixing chambers 11. The mixing chambers 11 are used to ensure that the gas and air are in full contact and mixed evenly. The specific process of forming a combustion mixture in the mixing tank 1 of this application is as follows: the gas supply equipment sends gas into the mixing chamber 11 through the gas passage 13. At the same time, external air is introduced into the mixing chamber 11 through the air passage 12. In the mixing chamber 11, the air and gas come into contact with each other and mix during the flow process. As the mixing process proceeds, the mixed gas can gradually become uniform and fill the entire mixing chamber 11. Finally, the well mixed gas can enter the connecting part 22 through the outlet of the mixing chamber 11 to enter the gas distribution plate 2 for uniform flow.

[0107] By setting up the mixing chamber 11, air passage 12 and gas passage 13, the mixing efficiency of air and gas can be improved, and the burner 1000 can obtain a stable and uniform supply of combustion mixture during combustion, thereby helping to improve combustion efficiency and stability.

[0108] like Figure 1 As shown, according to some embodiments of this application, the air passage 12 is located on one side of the mixing chamber 11, and the gas passage 13 is located on the opposite side of the mixing chamber 11.

[0109] Specifically, the air passage 12 and the gas passage 13 are arranged on one side and the opposite side of the mixing chamber 11, respectively. Here, "one side" and "opposite side" refer to the fact that in a certain direction, at least a portion of the mixing chamber 11 is spaced apart from at least another portion and is opposite to it. The sides of the opposite portions that are away from each other are respectively one side and the opposite side of the mixing chamber 11. This opposing arrangement of the air passage 12 and the gas passage 13 allows the air and gas to create a counter-current effect when entering the mixing chamber 11, and provides a relatively large contact area. This enhances the uniformity and efficiency of the air-gas mixing, and improves combustion stability and efficiency.

[0110] Preferably, the air passage 12 and the gas passage 13 are oriented in the same direction as the length of the burner 1000. The mixing chamber 11 typically occupies a relatively small length space. The air passage 12 and the gas passage 13 can be respectively arranged on both sides of the mixing chamber 11 in the length of the burner 1000 to make full use of the space on both sides of the length of the mixing chamber 11, thereby improving space utilization and further saving the space occupied by the burner 1000 during installation.

[0111] Furthermore, in some specific embodiments of this application, a fan 6 is provided on the side of the air passage 12 away from the gas passage 13. The fan 6 is adapted to turbulent the airflow toward the mixing chamber 11 to accelerate the mixing speed of the gas and air.

[0112] like Figures 1-8 As shown, according to a second aspect embodiment of the present application, the gas-fired steam oven includes: the burner 1000 as described in any of the above embodiments.

[0113] Specifically, since the gas steam oven according to the second aspect of this application includes the burner 1000 as described in any of the above embodiments, the burner 1000 of the gas steam oven can effectively enhance the mixing effect of gas and air in a limited space and improve the uniformity of the distribution of the combustion mixture through the synergistic effect of the mixing tank 1, the gas distribution plate 2 and the combustion chamber, thereby improving combustion efficiency, combustion stability and energy saving, and improving the cooking efficiency and effect of the gas steam oven.

[0114] like Figures 1-8 As shown, the integrated stove according to the third aspect embodiment of this application includes: the gas steam oven described in the above embodiment, and the resulting technical effect is the same as that in the above embodiment, and will not be repeated here.

[0115] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above 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 one or more embodiments or examples.

[0116] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A burner, characterized in that, include: A mixing tank for mixing fuel gas and air into a combustion mixture; The gas distribution plate has a flow equalization chamber inside. The bottom plate of the gas distribution plate has a connecting part that communicates with the mixing tank. In the direction away from the connecting part, a plurality of flow distribution parts are arranged in sequence. Each flow distribution part has at least one flow distribution rib. The width of at least a portion of the flow distribution ribs adjacent to the connecting part is smaller than the width of at least another portion of the flow distribution ribs away from the connecting part. The combustion chamber is connected to the gas distribution plate and is located on the side of the gas distribution plate away from the mixing tank, and is used to provide combustion space for the combustion of the combustion mixture.

2. The burner according to claim 1, characterized in that, In the direction away from the connecting portion, the diversion portion includes a first diversion portion, a second diversion portion to an Nth diversion portion arranged sequentially, where N≥2, and the gap between adjacent diversion ribs in the Nth diversion portion is smaller than the gap between adjacent diversion ribs in the (N-1)th diversion portion.

3. The burner according to claim 2, characterized in that, Each of the flow dividers includes multiple flow divider ribs, and the flow divider ribs in each flow divider are arranged in groups, with the multiple groups of flow divider ribs arranged opposite each other in the width direction of the base plate.

4. The burner according to claim 3, characterized in that, Also includes: A first flow equalization plate is disposed in the flow equalization cavity and located above the bottom plate. The first flow equalization plate has a through-hole area for the combustion mixture to pass through, and a plurality of first through holes are arranged in an array in the through-hole area.

5. The burner according to claim 4, characterized in that, The via area includes: a first via area, and a second via area to the Mth via area located in pairs on both sides of the first via area, where M≥3. The projection of the first via area coincides with the projection of the connecting part in the height direction, and the projections of the second via area, the third via area to the Mth via area coincide with the projections of the first diversion part, the second diversion part to the Nth diversion part in the height direction, respectively.

6. The burner according to claim 5, characterized in that, The equivalent diameter of the first via within at least one of the via regions gradually decreases in the direction away from the connecting portion.

7. The burner according to claim 5, characterized in that, From the second via region to the Mth via region, the equivalent diameter of the first via in the Mth via region is smaller than the equivalent diameter of the first via in the (M-1)th via region, and the equivalent diameter of the first via in the first via region is the smallest.

8. The burner according to claim 4, characterized in that, Also includes: The second flow equalization plate covers the first flow equalization plate and is spaced apart from the first flow equalization plate. The second flow equalization plate has a plurality of second through holes for the combustion mixture to pass through.

9. The burner according to claim 8, characterized in that, Multiple second vias are evenly distributed in an array on the second flow equalization plate.

10. The burner according to claim 8, characterized in that, The distance between the second flow equalization plate and the first flow equalization plate is 10mm to 30mm.

11. The burner according to claim 8, characterized in that, A combustion metal layer is provided on the side of the second flow equalization plate opposite to the first flow equalization plate.

12. The burner according to claim 11, characterized in that, Also includes: An ignition element is provided, one end of which protrudes from the bottom of the gas distribution plate, and the ignition element penetrates the gas distribution plate, the first flow equalization plate and the second flow equalization plate along the height direction to selectively ignite the combustion metal layer.

13. The burner according to claim 1, characterized in that, The mixing tank is provided with a mixing chamber, an air passage and a gas passage. One end of the air passage and one end of the gas passage are connected to the inlet of the mixing chamber. The other end of the air passage is connected to the outside. The other end of the gas passage is connected to the gas supply equipment. Air and gas are mixed in the mixing chamber, and the outlet of the mixing chamber is connected to the connecting part.

14. The burner according to claim 13, characterized in that, The air passage is located on one side of the mixing chamber, and the gas passage is located on the opposite side of the mixing chamber.

15. A gas-fired steam oven, characterized in that, include: The burner according to any one of claims 1-14.

16. An integrated stove, characterized in that, include: The gas-fired steam oven as described in claim 15.

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