Combustor, gas steaming and baking device and integrated stove

Abstract

The utility model 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] The present application relates to the technical field of kitchen appliances, and in particular, to a burner, a gas steam cooking and baking device, and an integrated stove. Background Art

[0002] In the current market, mainstream integrated stoves are usually provided with steam ovens, and most of the steam ovens adopt electric heating methods. However, limited by the problems of electrical safety and power distribution, the power allocated to the steam generator is often small. Especially when the steam oven needs to take into account the functions of steaming and baking, this further limits the power of its heating tubes and steam generator, thus affecting the cooking performance and efficiency. In related technologies, the use of a gas-fired steam generator can break through the limitation of electrical safety, greatly improve the power of the steam generator and heating tubes, and thus significantly improve the cooking speed and effect. In order to apply the gas-fired steam generator to the steam oven and try to ensure the cooking cavity volume of the steam oven, the burner of the gas-fired steam generator needs to be made into a relatively long and narrow rectangular structure. However, in such a long and narrow and compact structure, it is difficult for gas and air to be fully mixed, and the distribution of the mixed gas entering the furnace cavity is also prone to unevenness, which will affect the combustion uniformity and heating efficiency, and further affect the cooking efficiency and effect. Summary of the Utility Model

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the present application is to propose a burner, which can enhance the mixing effect of gas and air in a limited space and improve the uniformity of the distribution of the combustion mixture gas through the cooperative action of a gas mixing tank, a gas distribution plate, and a combustion chamber, so that the burner can take into account the size, combustion efficiency, and stability, and ensure the cooking efficiency and effect.

[0004] The present application also proposes a gas steam cooking and baking device having the above burner.

[0005] The present application also proposes an integrated stove having the above gas steam cooking and baking device.

[0006] According to the burner of the first aspect embodiment of the present application, the burner includes: a gas mixing tank, a gas distribution plate, and a combustion chamber. The gas mixing tank is used to mix gas and air into a combustion mixture gas; the gas distribution plate has a flow equalizing chamber, a communication part communicating with the gas mixing tank is opened on the bottom plate of the gas distribution plate, and in the direction away from the communication part, a plurality of flow dividing parts are sequentially arranged. Each flow dividing part has at least one flow dividing rib, and the width dimension of at least part of the flow dividing ribs adjacent to the communication part is smaller than the width dimension of at least another part of the flow dividing ribs away from the communication part; the combustion chamber is communicated with the gas distribution plate and is located on the side of the gas distribution plate away from the gas mixing tank, and is used to provide a combustion space for the combustion of the combustion mixture gas.

[0007] According to the burner of the present application, through the synergistic effect of the gas 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 distribution uniformity of the combustion mixture can be improved. Thus, a burner with a long and narrow structure can also have good combustion efficiency, combustion stability and energy consumption savings, and the cooking efficiency and effect can be improved.

[0008] According to some embodiments of the present application, in the direction away from the connection part, the shunt part includes a first shunt part, a second shunt part to an Nth shunt part arranged in sequence, N≥2, and the gap between adjacent shunt ribs in the Nth shunt part is smaller than the gap between adjacent shunt ribs in the (N - 1)th shunt part.

[0009] Further, each shunt part includes a plurality of shunt ribs, the shunt ribs in each shunt part are arranged in groups, and multiple groups of shunt ribs are arranged oppositely in the width direction of the bottom plate.

[0010] Further, the burner further includes: a first flow equalizing plate, the first flow equalizing plate is arranged in the flow equalizing cavity and above the bottom plate, a through hole area for the combustion mixture to pass through is formed on the first flow equalizing plate, and a plurality of first through holes arranged in an array are formed in the through hole area.

[0011] Further, the through hole area includes: a first through hole area, second through hole areas to an Mth through hole area arranged in pairs on both sides of the first through hole area, M≥3, and the projection of the first through hole area on the height direction coincides with the connection part, and the projections of the second through hole area, the third through hole area to the Mth through hole area on the height direction coincide with the first shunt part, the second shunt part to the Nth shunt part respectively.

[0012] Further, the equivalent diameter of the first through holes in at least one through hole area gradually decreases in the direction away from the connection part.

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

[0014] According to some embodiments of the present application, the burner further includes: a second flow equalizing plate, the second flow equalizing plate covers above the first flow equalizing plate and is arranged at an interval from the first flow equalizing plate, and a plurality of second through holes for the combustion mixture to pass through are formed on the second flow equalizing plate.

[0015] Further, the plurality of second through holes are uniformly arranged in an array on the second flow equalizing plate.

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

[0017] According to some embodiments of the present application, a combustion metal layer is provided on a side of the second flow equalizing plate facing away from the first flow equalizing plate.

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

[0019] According to some embodiments of the present 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 communicated with the outside, and the other end of the gas passage is communicated with a gas supply device. Air and gas are mixed in the mixing chamber, and the outlet of the mixing chamber is communicated with the communicating portion.

[0020] Further, 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 the gas steam cooking device of the second aspect embodiment of the present application, the gas steam cooking device includes: the burner according to any one of the above embodiments.

[0022] According to the integrated stove of the third aspect embodiment of the present application, the integrated stove includes: the gas steam cooking device described in the above embodiments.

[0023] The additional aspects and advantages of the present application will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

[0028] Figure 4 is Figure 3Cross-sectional view A-A;

[0029] Figure 5 is a schematic partial structure diagram of a burner according to some embodiments of the present application;

[0030] Figure 6 is a schematic diagram of a flow splitting part on an air distribution plate according to some embodiments of the present application;

[0031] Figure 7 is a schematic diagram of a first flow equalizing plate according to some embodiments of the present application;

[0032] Figure 8 is a schematic diagram of a second flow equalizing plate according to some embodiments of the present application.

[0033] Reference numerals:

[0034] 1000, burner;

[0035] 1, mixing tank;

[0036] 11, mixing chamber;

[0037] 12, air passage;

[0038] 13, gas passage;

[0039] 2, air distribution plate;

[0040] 21, bottom plate; 21a, first through hole;

[0041] 22, connecting part;

[0042] 23a, first flow splitting part; 23b, second flow splitting part; 23c, third flow splitting part;

[0043] 231, flow splitting rib;

[0044] 3, first flow equalizing plate;

[0045] 3a, first through hole area;

[0046] 3b, second through hole area;

[0047] 3c, third through hole area;

[0048] 3d, fourth through hole area;

[0049] 31a, first through hole;

[0050] 31b, second through hole;

[0051] 4, second flow equalizing plate;

[0052] 41a, second through hole;

[0053] 41b, third through hole;

[0054] 5. Ignition component;

[0055] 6. Fan. Detailed implementation manners

[0056] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0057] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs; the terms used in the specification of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application; the terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of the present application or the above drawings are used to distinguish different objects, rather than to describe a specific order or primary-secondary relationship.

[0058] Referring to "embodiments" in the present application means that specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments.

[0059] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "attached" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0060] The term "and / or" in the present application is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in the present application generally represents an "or" relationship between the associated objects before and after.

[0061] In the embodiments of the present application, the same reference numerals denote the same components, and for the sake of brevity, in different embodiments, the detailed description of the same components is omitted. It should be understood that the thickness, length, width, etc. of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width, etc. of the integrated device are only illustrative descriptions and should not constitute any limitation to the present application.

[0062] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application 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 thus should not be construed as a limitation to the present application.

[0063] In the description of the present application, that the first feature is "above" or "below" the second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but in contact through additional features therebetween.

[0064] In the description of the present application, that the first feature is "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature.

[0065] The "plurality" appearing in the present application refers to two or more (including two).

[0066] Next, reference is made to Figures 1 - 8 Describe the burner 1000, gas steam cooking device, and integrated stove according to the embodiments of the present application.

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

[0068] Among them, the gas mixing tank 1 is used to mix gas and air into a combustion mixture; the gas distribution plate 2 is communicated with the gas mixing tank 1. The gas distribution plate 2 has a flow equalizing cavity. A communication part 22 communicated with the gas mixing tank 1 is opened on the bottom plate 21 of the gas distribution plate 2. In the direction away from the communication part 22, a plurality of flow dividing parts are arranged in sequence. Each flow dividing part has at least one flow dividing rib 231. The width dimension of at least part of the flow dividing ribs 231 adjacent to the communication part 22 is smaller than the width dimension of at least another part of the flow dividing ribs 231 away from the communication part 22; the combustion chamber is communicated with the gas distribution plate 2 and is located on the side of the gas distribution plate 2 away from the gas mixing tank 1 and is used to provide a combustion space for the combustion of the combustion mixture.

[0069] Specifically, the gas mixing tank 1 can introduce external air and gas. In the gas mixing tank 1, the gas and air can come into full contact and be mixed into a combustion mixture according to a preset mixing ratio, that is, premixing is achieved. In this way, the full mixing of gas and air can be promoted; a communication part 22 can be opened in the middle of the bottom plate 21 of the gas distribution plate 2. The communication part 22 communicates the flow dividing plate with the gas mixing tank 1. After the gas and air are premixed in the gas mixing tank 1, they can enter the gas distribution plate 2 through the communication part 22. The flow equalizing cavity of the gas distribution plate 2 can carry out flow division and homogenization treatment on the combustion mixture. Specifically, in the direction away from the communication part 22, that is, in the direction from the middle of the bottom plate 21 towards both ends of the extending direction of the bottom plate 21, a plurality of flow dividing parts are arranged in sequence in the gas distribution plate 2. Each flow dividing part has at least one flow dividing rib 231. And the width of at least part of the flow dividing ribs 231 is different from the width of at least another part of the flow dividing ribs 231 to form a non-uniformly distributed flow division structure. This non-uniformly distributed flow division structure can cause different flow fields to be generated in different regions of the gas distribution plate 2. The width of the flow dividing ribs 231 adjacent to the communication part 22 is small, which can quickly perform preliminary deceleration and stabilization on the combustion mixture that just enters the gas distribution plate 2. In this way, the uneven mixing caused by too fast flow velocity can be reduced, and a foundation can be laid for the subsequent mixing process. The width of the flow dividing ribs 231 away from the communication part 22 is large, which can increase the diffusion area of the combustion mixture when it bypasses the flow dividing ribs 231, helping to evenly distribute the combustion mixture to both side regions and each corner of the gas distribution plate 2. Therefore, by changing the width of the flow dividing ribs 231, the distribution uniformity of the combustion mixture in the gas distribution plate 2 can be significantly improved. The combustion chamber of the present application is communicated with the gas distribution plate 2. When the combustion mixture passes through the flow division and homogenization treatment of the gas distribution plate 2, it can flow into the combustion chamber for combustion.

[0070] It should be noted that the gas mixing tank 1, the gas distribution plate 2, and the combustion chamber can be arranged in sequence 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 heating work.

[0071] According to the burner 1000 of the present application, through the synergistic effect of the gas mixing tank 1, the gas distribution plate 2 and the combustion chamber, the mixing effect of gas and air can be effectively enhanced within a limited space, and the distribution uniformity of the combustion mixture can be improved. Thus, the burner 1000 with a long and narrow structure can also have good combustion efficiency, combustion stability and energy consumption savings, and can improve the cooking efficiency and effect.

[0072] As Figure 6 shown, according to some embodiments of the present application, in the direction away from the connection part 22, the flow dividing part includes a first flow dividing part 23a, a second flow dividing part 23b to an Nth flow dividing part arranged in sequence, N≥2, and the gap between adjacent flow dividing ribs 231 in the Nth flow dividing part is smaller than the gap between adjacent flow dividing ribs 231 in the (N - 1)th flow dividing part.

[0073] Specifically, the first flow dividing part 23a, the second flow dividing part 23b to the Nth flow dividing part are arranged away from the connection part 22 in sequence, wherein the gap between adjacent flow dividing ribs 231 in the Nth flow dividing part is smaller than the gap between adjacent flow dividing ribs 231 in the (N - 1)th flow dividing part. In this way, on the one hand, the relatively small gap in the Nth flow dividing part can increase the flow velocity of the combustion mixture passing through this gap area, further enhancing the mixing effect of the combustion mixture; on the second hand, by setting the gap between adjacent flow dividing ribs 231 in the Nth flow dividing part to be smaller than the gap between adjacent flow dividing ribs 231 in the (N - 1)th flow dividing part, the distribution uniformity of the combustion mixture can also be improved, thereby achieving the improvement of combustion uniformity and stability.

[0074] As Figure 5 and Figure 6 shown, according to some embodiments of the present application, each flow dividing part includes a plurality of flow dividing ribs 231, the flow dividing ribs 231 in each flow dividing part are arranged in groups, and the multiple groups of flow dividing ribs 231 are arranged oppositely in the width direction of the bottom plate 21.

[0075] Specifically, the flow dividing ribs 231 within each flow dividing portion are arranged in groups, and multiple groups of flow dividing ribs 231 are arranged opposite to each other in the width direction of the bottom plate 21. Exemplarily, the flow dividing ribs 231 within each flow dividing portion can be arranged in two groups, and the two groups of flow dividing ribs 231 are opposite to each other in the width direction of the bottom plate 21. The flow dividing ribs 231 within each flow dividing portion can also be arranged in three groups, and then the three groups of flow dividing ribs 231 are arranged opposite to each other in sequence in the width direction of the bottom plate 21. By adopting the method of arranging multiple groups of flow dividing ribs 231 opposite to each other in the width direction of the bottom plate 21, it helps to form a complex flow field structure within the flow dividing portion. When the combustion mixture passes through the flow dividing portion, it can be disturbed by the flow dividing ribs 231 from different directions, thereby generating more vortices and turbulences. These vortices and turbulences contribute to further enhancing the mixing effect. At the same time, since the distribution of the groups of flow dividing ribs 231 is regular, it can also avoid forming an overly large dead zone or vortex zone within the flow dividing portion, thereby ensuring that the combustion mixture can flow smoothly to the next stage.

[0076] Preferably, the flow dividing ribs 231 within each flow dividing portion are arranged in two groups, and the two groups of flow dividing ribs 231 are respectively arranged at both ends of the bottom plate 21 in the width direction, and the flow dividing ribs 231 within the two groups of flow dividing ribs 231 are in one-to-one correspondence, so as to ensure that the combustion mixture has good flow performance and uniform distribution.

[0077] In some specific embodiments of the present application, the flow dividing portion includes a first flow dividing portion 23a, a second flow dividing portion 23b, and a third flow dividing portion 23c. The numbers of the first flow dividing portion 23a, the second flow dividing portion 23b, and the third flow dividing portion 23c are all configured to be two. The two first flow dividing portions 23a, the two second flow dividing portions 23b, and the two third flow dividing portions 23c are respectively located on both sides of the communication portion 22 in the length direction of the bottom plate 21, and the flow dividing ribs 231 within each of the first flow dividing portion 23a, the second flow dividing portion 23b, and the third flow dividing portion 23c are arranged in two groups. Among them, each first flow dividing portion 23a includes two flow dividing ribs 231, each second flow dividing portion 23b includes six flow dividing ribs 231, and each third flow dividing portion 23c includes twelve flow dividing ribs 231, so as to form a good flow field structure within the flow dividing portion to guide the uniform flow of the combustion mixture within the flow dividing portion.

[0078] As Figure 4 and Figure 7 shown, according to some embodiments of the present application, the burner 1000 further includes: a first flow equalizing plate 3. The first flow equalizing plate 3 is disposed within the flow equalizing cavity and is located above the bottom plate 21. A through hole area for the combustion mixture to pass through is provided on the first flow equalizing plate 3, and a plurality of first through holes 31a arranged in an array are provided within the through hole area.

[0079] Specifically, the first flow equalizing plate 3 can be arranged above the bottom plate 21 and cover the tops of the plurality of flow dividing ribs 231. The first flow equalizing plate 3 has a certain thickness in the height direction. A through-hole area is formed on the first flow equalizing plate 3, and a plurality of first through-holes 31a arranged in an array are formed in the through-hole area. It can be understood that the first through-holes 31a can enable the combustion mixture flowing through the flow dividing part to flow from below the first flow equalizing plate 3 to above the first flow equalizing plate 3. The first through-holes 31a arranged in an array can cause the combustion mixture to undergo multiple dispersion and re-convergence processes when passing through the first flow equalizing plate 3. This process helps to break the possible local non-uniformity in the combustion mixture, and can further optimize the mixing and homogenization of the combustion mixture in the flow equalizing cavity. In this way, before the combustion mixture enters the combustion chamber, it can be distributed as evenly as possible, so as to improve the stability and reliability of the subsequent combustion, and further contribute to improving the overall performance and efficiency of the burner 1000.

[0080] It should be noted that the above-mentioned "arrayed and evenly distributed" of the plurality of first through-holes 31a can refer to the arrangement of the plurality of first through-holes 31a in a uniform distribution manner in the form of rows and columns at a certain interval.

[0081] As Figure 7 shown, according to some embodiments of the present application, the through-hole area includes: a first through-hole area 3a, and second through-hole areas 3b to Mth through-hole areas arranged in pairs on both sides of the first through-hole area 3a, M≥3, and the projection of the first through-hole area 3a in the height direction coincides with the communication part 22, and the projections of the second through-hole areas 3b, third through-hole areas 3c to Mth through-hole areas in the height direction coincide with the first flow dividing part 23a, second flow dividing part 23b to Nth flow dividing part respectively.

[0082] Specifically, the through-hole area is divided into multiple areas, including a first through-hole area 3a and second through-hole areas 3b to Mth through-hole areas arranged in pairs on both sides thereof. Among them, the projection of the first through-hole area 3a in the height direction coincides with the communication part 22, and the combustion mixture above the communication part 22 can flow out from the plurality of first through-holes 31a of the first through-hole area 3a to achieve the homogenization of the combustion mixture in the middle area. Similarly, the projections of the second through-hole areas 3b to Mth through-hole areas in the height direction coincide with the first flow dividing part 23a to Nth flow dividing part respectively. Exemplarily, the projections of the first flow dividing part 23a to the third flow dividing part 23c in the height direction coincide with the second through-hole area 3b to the fourth through-hole area 3d. The combustion mixture of the first flow dividing part 23a to the Nth flow dividing part can flow out from the first through-holes 31a of the corresponding second through-hole areas 3b to Mth through-hole areas above respectively to achieve the homogenization of the combustion mixture from the middle to both sides areas. Therefore, by finely dividing the through-hole area and structurally corresponding it to the flow dividing part, the homogenization process of the combustion mixture can be further optimized, providing a more stable and reliable supply of the combustion mixture for the subsequent combustion process.

[0083] It should be noted that the projection of the first via region 3a to the Mth via region on the height direction coincides with that of the communication part 22 and the flow splitting part, which means the projection of the via region coincides with that of the communication part 22 and the flow splitting part region. The projections of the first vias 31a in the first via region 3a to the Mth via region of the present application are offset from those of the flow splitting ribs 231 in the first flow splitting part 23a to the Nth flow splitting part in the height direction. The projection of the first via 31a can be located between two adjacent flow splitting ribs 231 in the extending direction of the bottom plate 21, or between two opposite flow splitting ribs 231 in the width direction of the bottom plate 21, or between the flow splitting rib 231 and the edge of the bottom plate 21.

[0084] Preferably, in the direction of the side of the communication part 22 facing the extending direction of the bottom plate 21, a column of first vias 31a spaced apart in the width direction of the bottom plate 21 is arranged correspondingly between two adjacent flow splitting ribs 231 and another two flow splitting ribs 231 opposite to the two flow splitting ribs 231 in the width direction of the bottom plate 21. Between the flow splitting rib 231 at the outermost end in the extending direction of the bottom plate 21 and the edge of the bottom plate 21, a column of first vias 31a spaced apart in the width direction of the bottom plate 21 is arranged correspondingly. The number of first vias 31a in each column is the same and they are opposite to each other in the extending direction of the bottom plate 21. Through this layout, the space in the flow equalizing cavity can be effectively utilized, so that after the combustion mixture passes through the communication part 22 and the flow splitting part, it can be respectively homogenized in the corresponding via regions, thereby improving the mixing efficiency and uniformity.

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

[0086] Specifically, the gradually decreasing diameter of the first via 31a can play a "throttling" role. It can be understood that in the direction away from the communication part 22, due to the decrease in the diameter of the first via 31a, the combustion mixture is subject to greater resistance when passing through, which helps to slow down the flow rate of the combustion mixture and enables it to have more sufficient time for further mixing and homogenization. At the same time, when the combustion mixture passes through the relatively small first via 31a, the small aperture can increase the collision frequency between molecules, which helps to promote the mixing between the fuel gas and air in the combustion mixture and can further enhance the mixing effect. In addition, the different equivalent diameters of the first vias 31a also contribute to increasing the complexity of the flow field structure formed in the flow equalizing cavity, increasing the difference in the combustion mixture passing through the first vias 31a with different apertures, and helping to form more vortices and turbulences in the flow equalizing cavity, further promoting the mixing and homogenization of the combustion mixture.

[0087] As Figure 7As shown, according to some embodiments of the present 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 its previous via region, and the equivalent diameter of the first via 31a in the first via region 3a is the smallest. Since the first via region 3a coincides with the projection of the communication part 22 in the height direction, the first via region 3a is the initial flow-through region where the combustion mixture flows through the communication part 22 and enters the flow equalizing chamber. By setting the diameter of the first via 31a in the first via region 3a to be the smallest, the combustion mixture can be subjected to a relatively large resistance when it enters the flow equalizing chamber upward, thereby slowing down its flow velocity and providing sufficient time for the subsequent mixing and homogenization processes. As the combustion mixture flows away from the communication part 22 to the second via region 3b, the diameter of the first via 31a gradually decreases, which can cause the combustion mixture to be throttled to a certain extent when passing through each via region, thereby forming different flow velocities and pressure distributions in different via regions. This differential flow condition is beneficial to improving the distribution uniformity of the combustion mixture.

[0089] According to the first flow equalizing plate 3 of the present application, by setting the arrangement of the first vias 31a, and by setting the equivalent diameter of the first vias 31a in the second via region 3b to the Mth via region to gradually decrease, and combining with the design of the smallest diameter of the first vias 31a in the first via region 3a, the flow of the combustion mixture can be regulated and guided 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] As Figure 4 and Figure 8 As shown, according to some embodiments of the present application, the burner 1000 further includes: a second flow equalizing plate 4, the second flow equalizing plate 4 covers the upper part of the first flow equalizing plate 3 and is spaced from the first flow equalizing plate 3, and a plurality of second vias 41a for the combustion mixture to pass through are formed on the second flow equalizing plate 4.

[0091] Specifically, the second flow equalizing plate 4 can be covered above the first flow equalizing plate 3, and the second flow equalizing plate 4 is spaced apart from the first flow equalizing plate 3 by a certain distance in the height direction. Thus, the second flow equalizing plate 4 and the first flow equalizing plate 3 can define an additional flow equalizing space. The combustion mixture within this space is subjected to the combined action of the two flow equalizing plates and can undergo a more complex flow and mixing process to enhance the mixing effect of the combustion mixture. Among them, a plurality of through second holes 41a are formed in the second flow equalizing plate 4. After the combustion mixture flows through the first hole 31a to the upper side of the first flow equalizing plate 3, it can flow out of the area between the first flow equalizing plate 3 and the second flow equalizing plate 4 through the second holes 41a in the second flow equalizing plate 4 and flow to the upper side of the second flow equalizing plate 4. During this process, the second flow equalizing plate 4 can further equalize the combustion mixture flowing out of the first flow equalizing plate 3 to ensure that the distribution of the combustion mixture has reached a very high uniformity before entering the combustion chamber.

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

[0093] Specifically, a plurality of second holes 41a can be evenly distributed on the second flow equalizing plate 4 in the form of rows and columns, so that each area on the second flow equalizing plate 4 is evenly distributed with second holes 41a. Thus, the combustion mixture can be evenly dispersed and mixed when passing through the second flow equalizing plate 4. In this way, the situation of too high or too low local concentration of the combustion mixture can be avoided, and the uniformity of the combustion mixture can be further improved. In addition, the second holes 41a are evenly distributed in an array, and can also enable the combustion mixture to form a stable flow pattern when passing through the second holes 41a, optimizing the flow characteristics of the combustion mixture, which helps to reduce negative impacts such as noise and vibration and improve the stability and reliability of the burner 1000.

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

[0095] Specifically, when the distance between the second flow equalizing plate 4 and the first flow equalizing plate 3 is too small, for example, the distance between the second flow equalizing plate 4 and the first flow equalizing plate 3 is set to 5 mm or 8 mm, etc., it may cause the flow of the combustion mixture between the two flow equalizing plates to be restricted and unable to fully diffuse, thus affecting the mixing effect; when the distance between the second flow equalizing plate 4 and the first flow equalizing plate 3 is too large, for example, the distance between the second flow equalizing plate 4 and the first flow equalizing plate 3 is set to 35 mm or 40 mm, etc., it is likely to cause the combustion mixture to be too dispersed during the flow process and difficult to form an effective homogenizing effect. The distance between the second flow equalizing plate 4 and the first flow equalizing plate 3 in this application is set within the range of 10 mm to 30 mm, so that the distance between the second flow equalizing plate 4 and the first flow equalizing plate 3 is appropriate, and it can be realized that when the combustion mixture passes through the two flow equalizing plates, it can be sufficiently dispersed and mixed, and at the same time, it can maintain a certain flow velocity and stability. In this way, it helps to form a relatively stable flow equalizing space between the first flow equalizing plate 3 and the second flow equalizing plate 4 and improve the homogenization of the combustion mixture therein.

[0096] It should be noted that the above 10 mm to 30 mm is a preferred embodiment, and the distance range between the second flow equalizing plate 4 and the first flow equalizing plate 3 can also be flexibly adjusted according to the specific design and use requirements of the burner 1000. For example, in a scenario where higher mixing efficiency is required, the distance can be appropriately reduced, while in a scenario where relatively high requirements are placed on the flow resistance, the distance can be appropriately increased.

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

[0098] Specifically, the combustion metal layer can be constructed of a metal material with high thermal conductivity, high melting point and good stability, such as stainless steel, nickel alloy or titanium alloy, etc. The combustion metal layer can provide a stable combustion surface for combustion to promote the complete combustion of the gas mixture and help evenly transfer the heat generated by combustion to other preset parts of the burner 1000. And the combustion metal layer is provided on the side of the second flow equalizing plate 4 facing away from the first flow equalizing plate 3, so that after the combustion mixture passes through the first flow equalizing plate 3 and the second flow equalizing plate 4 in sequence for homogenization, it can directly contact the combustion metal layer for combustion. In this way, it can ensure that the combustion mixture has good uniformity before combustion, thus helping to improve the combustion efficiency and stability.

[0099] In addition, the presence of the combustion metal layer can also enhance the durability and safety of the burner 1000. Since high temperature and high pressure are generated during the combustion process, the combustion metal layer can withstand these extreme conditions without being easily damaged, thereby extending the service life of the burner 1000. At the same time, the combustion metal layer can also prevent flashback or combustion instability during the combustion process to a certain extent, thereby improving the safety of the burner 1000.

[0100] It should be pointed out that the combustion metal layer is evenly distributed on the side of the second flow equalizing plate 4 away from the first flow equalizing 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 the present application, the burner 1000 also includes: an ignition element 5, one end of which protrudes from the bottom end of the gas distribution plate 2, and the ignition element 5 penetrates the gas distribution plate 2, the first flow equalizing plate 3 and the second flow equalizing plate 4 along the height direction to selectively ignite the combustion metal layer.

[0102] Specifically, the ignition element 5 runs through the multi-layer structure, and the bottom plate 21 of the gas distribution plate 2, the first flow equalizing plate 3 and the second flow equalizing plate 4 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 partially penetrating the ignition element 5. The ignition element 5 has a certain length, and one end of the ignition element 5 in the extension direction protrudes and is arranged 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 in the thickness direction away from the first flow equalizing plate 3, and protrudes from the lower surface of the bottom plate 21 to facilitate operations such as activation of the ignition element 5 (such as by electric sparks or high-temperature flames). The other end of the ignition element 5 in the extension direction can be located above the burning metal layer on the second flow equalizing plate 4. When the ignition element 5 is activated, it can generate sufficient heat and transfer the heat to the burning metal layer to achieve smooth ignition of the burning metal layer.

[0103] In addition, in a specific embodiment of the present application, a first through hole 21a, a second through hole 31b and a third through hole 41b suitable for at least partially penetrating the ignition component 5 can be formed on the bottom plate 21 of the gas distribution plate 2, the first flow equalizing plate 3 and the second flow equalizing plate 4. 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 the projections of the three in the height direction overlap, so as to improve the installation and maintenance convenience of the ignition component 5 while ensuring that the gas mixture can be fully and evenly mixed in the flow equalizing chamber.

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

[0105] One end of the air passage 12 and one end of the gas passage 13 are both connected to the inlet of the mixing chamber 11. The other end of the air passage 12 is in communication with the outside, and the other end of the gas passage 13 is in communication with a gas supply device. Air and gas are mixed in the mixing chamber 11, and the outlet of the mixing chamber 11 is in communication with the connecting portion 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 in the extending direction is connected to the inlet of the mixing chamber 11, and the other end is open to the outside to inhale external air. Through the conveyance of the air passage 12, external air can be introduced into the mixing chamber 11. One end of the gas passage 13 in the extending direction is connected to the inlet of the mixing chamber 11, and the other end is in communication with a gas supply device (such as a gas tank, a gas pipeline, etc.) to inhale gas. Through the conveyance of the gas passage 13, gas can be introduced into the mixing chamber 11. The number of the mixing chambers 11 can be one or more. The mixing chamber 11 is used for allowing gas and air to come into full contact and be uniformly mixed. The specific process of forming a combustion mixture gas in the gas mixing tank 1 of the present application is that the gas supply device 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, air and gas come into contact with each other and are mixed during the flowing process. As the mixing process progresses, the mixed gas can gradually become uniform and fill the entire mixing chamber 11. Finally, the well-mixed gas can enter the connecting portion 22 through the outlet of the mixing chamber 11 to enter the air distribution plate 2 for flow equalization.

[0107] By providing the mixing chamber 11, the air passage 12 and the gas passage 13, the mixing efficiency of air and gas can be improved, and it can also ensure that the burner 1000 can obtain a stable and uniform supply of combustion mixture gas during combustion operation, thereby contributing to improving the combustion efficiency and stability.

[0108] As Figure 1 shown, according to some embodiments of the present 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 such that they are respectively disposed on one side and the opposite side of the mixing chamber 11. Here, one side and the opposite side refer to that in a certain direction, at least part of the mixing chamber 11 and at least another part are spaced apart and opposite in this direction. The sides of the at least part and the at least another part that face away from each other are respectively one side and the opposite side of the mixing chamber 11. With this relative layout of the air passage 12 and the gas passage 13, when air and gas enter the mixing chamber 11, a counter-flow effect can be formed, and a relatively large contact area can be obtained, thereby enhancing the uniformity and efficiency of the mixing of air and gas, and improving the combustion stability and efficiency.

[0110] Preferably, the direction in which the air passage 12 and the gas passage 13 are opposite is configured to be consistent with the length direction of the burner 1000. The mixing chamber 11 generally occupies a relatively small length space. The air passage 12 and the gas passage 13 can be respectively disposed on both sides of the mixing chamber 11 in the length direction of the burner 1000, so as to make full use of the space on both sides in the length direction of the mixing chamber 11, improve the space utilization rate, and further save the space occupied by the installation and arrangement of the burner 1000.

[0111] In addition, in some specific embodiments of the present application, a fan 6 is provided on the side of the air passage 12 facing away from the gas passage 13. The fan 6 is adapted to turbulently flow towards the mixing chamber 11 to accelerate the mixing speed of gas and air.

[0112] As Figures 1 - 8 shown, the gas steaming and baking device according to the second aspect embodiment of the present application includes: the burner 1000 described in any one of the above embodiments.

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

[0114] As Figures 1 - 8 shown, the integrated stove according to the third aspect embodiment of the present application includes: the gas steaming and baking device described in the above embodiments, and the technical effects generated are the same as those in the above embodiments and will not be repeated here.

[0115] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

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

Claims

1. A burner, characterized in that: include: A gas mixing tank, which is used to mix the fuel gas and air into a combustion mixed gas; A gas distribution plate, wherein the gas distribution plate has a flow-equalizing cavity, a connecting portion connected to the gas mixing tank is provided on the bottom plate of the gas distribution plate, and a plurality of flow dividing portions are sequentially arranged in a direction away from the connecting portion, each of the flow dividing portions has at least one flow dividing rib, and the width dimension of at least a portion of the flow dividing rib adjacent to the connecting portion is smaller than the width dimension of at least another portion of the flow dividing rib away from the connecting portion; The combustion chamber is communicated with the gas distribution plate and is located on a side of the gas distribution plate away from the gas mixing tank, and is used to provide a combustion space for the combustion of the combustion mixed gas.

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

3. The burner according to claim 2, characterized in that Each of the flow diverter portions includes a plurality of flow diverter ribs, the flow diverter ribs in each of the flow diverter portions are arranged in groups, and a plurality of groups of the flow diverter ribs are arranged relatively to each other in the width direction of the bottom plate.

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

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

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

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

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

9. The burner according to claim 8, characterized in that A plurality of the second via holes are evenly distributed on the second current equalizing plate in an array.

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

11. The burner according to claim 8, characterized in that A combustion metal layer is disposed on a side of the second current balancing plate facing away from the first current balancing plate.

12. The burner according to claim 11, characterized in that Also includes: An ignition piece, one end of which is protruding from the bottom of the gas distribution plate, and the ignition piece passes through the gas distribution plate, the first flow equalizing plate and the second flow equalizing plate in the height direction to selectively ignite the burning metal layer.

13. The burner according to claim 1, characterized in that The gas mixing tank is provided with a mixing chamber, an air channel and a gas channel, one end of the air channel and one end of the gas channel are connected to the inlet of the mixing chamber, the other end of the air channel is connected to the outside, the other end of the gas channel is connected to the gas supply equipment, the air and the 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 other side of the mixing chamber.

15. A gas steaming and baking device, characterized in that: include: The burner according to any one of claims 1 to 14.

16. An integrated stove, characterized in that: include: The gas steaming and baking device as claimed in claim 15.

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