Combustor and gas stove

Abstract

The invention relates to the technical field of combustors, in particular to a combustor and a gas stove.The combustor comprises a furnace end base, a gas distribution disc and fire distributors, and a plurality of second gas flow channels distributed in the radial direction with the center of the gas distribution disc as the axis and a plurality of coaxial annular fire distributors distributed in the radial direction are designed; the technical problems that in the prior art, due to the fact that the flame intensity of an atmospheric burner is uneven, the pot bottom is heated unevenly, and cooking is affected are solved.

Description

Technical Field

[0001] The present application relates to the technical field of burners, and particularly to a burner and a gas stove. Background Art

[0002] Due to its simple structure and low cost, the atmospheric burner is widely used in household cookers. Currently, the atmospheric burners on the market mainly adopt a double-ring fire structure, and a small number adopt a triple-ring fire design to meet the firepower requirements of different cooking scenarios.

[0003] However, these burners generally adopt a central gas supply method, that is, the gas is centrally distributed to each annular burner through a single flow channel. This gas supply method causes the gas pressure to decrease radially along the flow path during the gas transportation in the flow channel, resulting in a significantly lower gas pressure in the outer ring fire holes than in the inner ring. This uneven pressure distribution leads to uneven flame intensities between the outer ring and the inner ring, and further causes uneven heating of the bottom of the pot, affecting the cooking effect. Summary of the Invention

[0004] The present application provides a burner to solve the technical problem that the uneven flame intensity of the existing atmospheric burner causes uneven heating of the bottom of the pot and affects cooking.

[0005] In a first aspect, the present application provides a burner, comprising: A burner base, which is internally provided with a plurality of independent first gas flow channels, and each of the first gas flow channels is communicated with an ejector tube; A gas distribution plate, detachably installed on the burner base, the gas distribution plate is provided with a plurality of gas inlets and a number of second gas flow channels, the second gas flow channels are distributed radially with the center of the gas distribution plate as the axis and extend circumferentially in an annular structure, and each of the second gas flow channels is communicated with the corresponding first gas flow channel through the gas inlet; A burner, comprising a plurality of annular burners coaxially and radially distributed, each of the annular burners is provided with fire holes evenly distributed circumferentially, the burner is embedded on the gas distribution plate, and the fire holes of each of the annular burners are communicated with the corresponding second gas flow channels; An air supply system, comprising: A plurality of first air flow channels arranged between every two adjacent second gas flow channels, the first air flow channels are evenly distributed circumferentially; A plurality of air through holes arranged between every two adjacent annular burners, the air through holes are in one-to-one correspondence and communication with the first air flow channels to form a hierarchical oxygen supply channel.

[0006] In a possible implementation manner, it further includes a diversion cover, the diversion cover includes a plurality of separable annular diversion covers, the annular diversion covers are correspondingly embedded between adjacent two annular burners, one end of the annular diversion cover is turned outwards to form a retaining edge fold, and the retaining edge fold covers above the flame holes of the adjacent annular burners.

[0007] In a possible implementation manner, the annular diversion cover is formed with a plurality of second air flow channels, an inlet end of the second air flow channel is communicated with the first air flow channel, and an outlet end faces the flame hole.

[0008] In a possible implementation manner, a side of the annular burner facing the retaining edge fold gradually slopes downwards from an outer edge towards the center.

[0009] In a possible implementation manner, the retaining edge fold is parallel to a side of the annular burner facing the retaining edge fold.

[0010] In a possible implementation manner, the other end of the annular diversion cover inclines towards the retaining edge fold to form a diversion fold, so as to provide guidance for the air entering the second air flow channel.

[0011] In a possible implementation manner, a plurality of through holes are annularly arranged on a side wall of the gas distribution plate, and the through holes are correspondingly communicated with the first air flow channel one by one.

[0012] In a second aspect, the present application provides a gas stove, including a burner head and the above-mentioned burner.

[0013] The above technical solutions provided by the embodiments of the present application have the following advantages compared with the prior art: When the present application is in use, gas enters the stove head base through an ejector pipe and is distributed to the gas distribution plate through the first gas flow channel. Each second gas flow channel on the gas distribution plate evenly distributes the gas to each annular burner. Air enters the combustion area through the first air flow channel and the air through holes, is mixed with the gas and then ignited to form a flame. The present application improves the uniformity of gas distribution and avoids the problem of uneven flame intensity in each ring in the prior art. At the same time, through the design of the hierarchical oxygen supply channel, the full combustion of the gas is promoted, the flame distribution is made more uniform, the combustion efficiency and cooking effect are improved, and the requirements of different cooking scenarios are met. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.

[0015] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] One or more embodiments are exemplarily illustrated by the pictures in the corresponding accompanying drawings. These exemplary illustrations do not limit the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the drawings in the figures do not constitute a proportional limitation.

[0017] Figure 1 It is a perspective view of the burner provided by the embodiment of the present application.

[0018] Figure 2 It is a top view of the burner base and the gas distribution plate provided by the embodiment of the present application.

[0019] Figure 3 It is a perspective view of the burner base provided by the embodiment of the present application.

[0020] Figure 4 It is a top view of the burner head provided by the embodiment of the present application.

[0021] Figure 5 It is a perspective view of the flow guide cover provided by the embodiment of the present application.

[0022] Figure 6 It is an exploded view of the burner provided by the embodiment of the present application.

[0023] Figure 7 It is a schematic cross-sectional structure diagram of the gas distribution plate, the burner head and the flow guide cover provided by the embodiment of the present application.

[0024] Explanation of reference numerals in the drawings: 1. Burner base; 101. Ejector tube; 1011. Inner ejector tube; 1012. Outer ejector tube; 102. First gas flow channel; 1021. Inner first gas flow channel; 1022. Outer first gas flow channel; 2. Gas distribution plate; 201. Gas inlet; 2011. Inner gas inlet; 2012. Outer gas inlet; 202. Second gas flow channel; 2021. Inner gas flow channel; 2022. Outer gas flow channel; 203. First air flow channel; 204. Gap; 205. Through hole; 3. Burner head; 301. Annular burner head; 3011. Flame holes; 302. Air through holes; 4. Flow guide cover; 401. Annular flow guide cover; 4011. Baffle edge fold; 4012. Flow guide fold; 402. Second air flow channel; 4021. Inlet end; 4022. Outlet end. Detailed implementation manners

[0025] 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 and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the present application.

[0026] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0027] For ease of description, spatially relative relationship terms may be used in the text to describe the relative positional relationship or movement of one element or feature shown in the figure relative to another element or feature. These relative relationship terms such as "inside", "outside", "inner side", "outer side", "below", "beneath", "above", "upper", "front", "rear", etc. This spatially relative relationship term is intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or attitude change or motion state change, then these directional indications will also change accordingly. For example, an element described as "below other elements or features" or "beneath other elements or features" will subsequently be oriented as "above other elements or features" or "on other elements or features". Therefore, the exemplary term "below" can include both the upper and lower orientations. The device may be oriented otherwise (rotated 90 degrees or in other directions) and the spatially relative relationship descriptors used in the text are interpreted accordingly.

[0028] To solve the technical problem that the uneven flame intensity of the existing atmospheric burner causes uneven heating of the bottom of the pot and affects cooking, the present application provides a burner. By configuring an independent gas supply channel for each annular burner, the problem that the gas intensity of each ring of flames is insufficient, resulting in uneven heating of the bottom of the pot, is avoided. At the same time, each gas channel is configured with an air supply system to ensure that the gas in each ring can burn fully and improve the combustion efficiency.

[0029] Figures 1 to 7 A burner provided for the embodiments of the present application includes: The burner base 1 is internally provided with a plurality of independent first gas flow channels 102, and each first gas flow channel 102 communicates with an ejector pipe 101; The gas distribution plate 2 is detachably mounted on the burner base 1. The gas distribution plate 2 is provided with a plurality of gas inlets 201 and a number of second gas flow channels 202. The second gas flow channels 202 are radially distributed with the center of the gas distribution plate 2 as the axis and are in a circumferentially extending annular structure. Each second gas flow channel 202 communicates with the corresponding first gas flow channel 102 through the gas inlet 201; The burner 3 includes a plurality of annular burners 301 that are coaxial and radially distributed. Each annular burner 301 is provided with flame holes 3011 that are evenly distributed in the circumferential direction. The burner 3 is embedded in the gas distribution plate 2, and the flame holes 3011 of each annular burner 301 communicate with the corresponding second gas flow channel 202; The air supply system includes: A plurality of first air flow channels 203 provided between every two adjacent second gas flow channels 202. The first air flow channels 203 are evenly distributed in the circumferential direction; A plurality of air through holes 302 provided between every two adjacent annular burners 301. The air through holes 302 communicate with the first air flow channels 203 in a one-to-one correspondence to form a hierarchical oxygen supply channel.

[0030] In the above technical solution, it can be understood that the gas enters the first gas flow channel 102 through the ejector pipe 101, and then is distributed to each second gas flow channel 202 through the gas inlet 201 of the gas distribution plate 2. The plurality of second gas flow channels 202 are radially distributed, and each second gas flow channel 202 extends circumferentially, ensuring that the gas is evenly distributed to each annular burner 301. Each second gas flow channel 202 is configured with a corresponding air supply system. During use, the gas is ejected through the flame holes 3011 of the annular burner 301, and the air flows through the air supply system (the air through holes 302 and the first air flow channels 203) to the gas ejected through the flame holes 3011, enabling the gas to burn fully. The plurality of annular burners 301 designed in this application enable the flame to be more evenly distributed on the bottom of the pot, reducing temperature non-uniformity. And each annular burner 301 has a corresponding second gas flow channel 202, reducing the phenomenon of uneven gas distribution and improving the combustion efficiency. The design of the air through holes 302 and the first air flow channels 203 ensures that each annular burner 301 has an independent oxygen supply channel, ensuring that the gas can burn fully.

[0031] Please refer to again Figure 2, in a possible implementation, there are four second gas flow channels 202, one of the second gas flow channels 202 is located at the center of the gas distribution plate 2, and the remaining three second gas flow channels 202 are arranged radially in sequence with the second gas flow channel 202 at the center as the axis. Specifically, in use, the gas enters the first gas flow channel 102 through the ejector pipe 101, and then is distributed to the four second gas flow channels 202 through the gas inlet 201 of the gas distribution plate 2 to form stratified combustion. The gas in the central flow channel is ejected through the inner fire holes 3011 to form a high-temperature core area, improving the heating efficiency. The gas in the peripheral flow channels is ejected through the outer fire holes 3011 to expand the flame coverage and ensure uniform heating of the bottom of the pot. The air flow channel system (the first air flow channel 203, the air through holes 302) works in coordination with the gas flow channels to promote the stratified mixing of gas and air. The directional air flow guidance ensures the full combustion of each layer of flame, reducing the emission of unburned gas. The stratified gas distribution and hierarchical flame control optimize the energy distribution, reduce heat loss, and improve the heating speed. At the same time, the multi-layer flame design reduces the phenomenon of uneven heating of the bottom of the pot and improves the cooking effect.

[0032] Particularly, there is a gap 204 between two adjacent first air flow channels 203 in the same circumferential direction. The second gas flow channel 202 located at the center is defined as the inner gas flow channel 2021, and the remaining three second gas flow channels 202 are all defined as outer gas flow channels 2022. The three outer gas flow channels 2022 are connected through the gap 204. At the same time, the gas inlet 201 is divided into an inner gas inlet 2011 and an outer gas inlet 2012, the ejector pipe 101 is divided into an inner ejector pipe 1011 and an outer ejector pipe 1012, and the first gas flow channel 102 is divided into an inner first gas flow channel 1021 and an outer first gas flow channel 1022.

[0033] It can be understood that the inner ejector pipe 1011, the inner first gas flow channel 1021, the inner gas inlet 2011 and the inner gas flow channel 2021 are connected in sequence, and the outer ejector pipe 1012, the outer first gas flow channel 1022, the outer gas inlet 2012 and the outer gas flow channel 2022 are connected in sequence. And there are multiple outer gas inlets 2012, and each outer gas inlet 2012 is connected to the outer gas flow channel 2022. In use, the inner ejector pipe 1011 sequentially introduces the gas provided by the external device into the inner first gas flow channel 1021, the inner gas inlet 2011, and the inner gas flow channel 2021 to supply fire to the central area; the outer ejector pipe 1012 sequentially introduces the gas provided by the external device (not shown in the drawings) into the outer first gas flow channel 1022, the outer gas inlet 2012, and the outer gas flow channel 2022 to supply fire to the peripheral area.

[0034] As described above, there are two first gas flow channels 102, one of which is connected to the inner gas flow channel 2021 and the other is connected to the outer gas flow channel 2022. Gas enters the inner and outer gas flow channels through the two first gas flow channels 102 respectively, realizing independent control of the central and peripheral flames. The inner gas flow channel 2021 provides a core high-temperature flame, and the outer gas flow channel 2022 redistributes the gas through the circumferential gap to form a uniform peripheral flame.

[0035] Please refer to Figure 1 and Figure 6 , it further includes a diversion cover 4. The diversion cover 4 includes a plurality of separable annular diversion covers 401. The annular diversion covers 401 are correspondingly embedded between adjacent two annular burners 301. One end of the annular diversion cover 401 is turned outwards to form a baffle edge 4011, and the baffle edge 4011 covers above the flame holes of the adjacent annular burners 301.

[0036] The baffle edge 4011 serves as a physical barrier and directly covers above the flame hole 3011, effectively blocking food spillage or external pollutants from directly contacting the flame hole 3011. When food spills or splashes during cooking, the baffle edge 4011 can guide it to other parts of the annular diversion cover 401, preventing it from entering the flame hole 3011 and causing blockage or pollution.

[0037] At the same time, the annular diversion cover 401 is formed with a plurality of second air flow channels 402. The inlet end 4021 of the second air flow channel 402 is connected to the first air flow channel 203, and the outlet end 4022 faces the flame hole 3011. Air enters the second air flow channel 402 in the annular diversion cover 401 through the first air flow channel 203. The second air flow channel 402 guides the air to the vicinity of the flame hole 3011, providing sufficient oxygen for gas combustion. It can be understood that the design of the second air flow channel 402 enables the air to be more evenly distributed around the flame hole 3011. Through the additional air provided by the second air flow channel 402, the gas can burn more fully, improving the combustion efficiency, and at the same time helping to reduce energy waste and lower the usage cost.

[0038] Please refer to Figure 6 , in a possible implementation manner, the side of the annular burner 301 facing the baffle edge 4011 gradually slopes downward from the outer edge towards the center. The sloping annular burner 301 causes the flame ejected from the flame hole 3011 to be subjected to a downward guiding force at the initial stage, forcing the flame to be close to the bottom of the pot. After the flame is close to the bottom of the pot, the contact area with the bottom of the pot increases significantly, and the heat transfer efficiency is improved. At the same time, the sloping design makes the flame energy act more concentratedly on the central area of the bottom of the pot, reducing the temperature difference between the edge and the center.

[0039] It should be noted that, in a possible implementation, the flange hem 4011 is parallel to the side of the annular gas distributor 301 facing the flange hem 4011. The parallelism between the flange hem 4011 and the side of the annular gas distributor 301 facing the flange hem 4011 can increase the area of the flange hem 4011 covering the flame holes 3011, effectively preventing the flame holes 3011 from being blocked and extending the service life of the burner.

[0040] In a possible implementation, the other end of the annular flow guide cover 401 is inclined towards the flange hem 4011 to form a flow guide hem 4012, which provides guidance for the air entering the second air flow channel 402. The design of the flow guide hem 4012 forms an air guiding channel, guiding the air to the outlet end 4022 of the second air flow channel 402, ensuring that more air flows towards the flame holes 3011, providing sufficient oxygen for the combustion of the gas, and promoting full combustion.

[0041] In a possible implementation, a plurality of through holes 205 are provided in a circumferential manner on the side wall of the gas distribution plate 2, and the through holes 205 are in one-to-one correspondence and communication with the first air flow channel 203. The through holes 205 introduce external air into the first air flow channel 203, and the first air flow channel 203 introduces air into the second air flow channel 402 through the air through holes 302. The second air flow channel 402 then guides the air towards the flame holes 3011 to supply oxygen to the gas ejected from the flame holes 3011, improving the gas efficiency. It can be understood that each through hole 205 is directly communicated with the first air flow channel 203 to form an independent air channel. This enables the air to enter the gas distribution plate 2 evenly from all directions, avoiding local air shortage or excess.

[0042] At the same time, the present application also provides a gas stove (not shown in the drawings), including a stove top (not shown in the drawings) and the above-mentioned burner. The burner is placed on the stove top, and the gas stove using the above-mentioned burner can achieve the directional diversion of gas and air and uniform and efficient combustion.

[0043] In the above embodiments, the descriptions of each embodiment have their own emphases. For parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0044] 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", 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 therefore should not be construed as a limitation to the present application.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality of" means two or more unless otherwise specifically defined.

[0046] In this application, unless otherwise clearly defined and limited, the terms such as "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0047] In this application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on top of" 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. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0048] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean 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 descriptions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0049] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these changes and modifications.

[0050] As described above, the specific implementation manners of the present application are provided, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A burner, characterized in that: include: A burner base, wherein a plurality of independent first gas flow passages are provided inside, and each of the first gas flow passages is connected to an ejector pipe; A gas distribution plate is detachably mounted on the burner base, the gas distribution plate is provided with a plurality of gas inlets and a plurality of second gas flow channels, the second gas flow channels are radially distributed with the center of the gas distribution plate as the axis, and are in a circumferentially extending annular structure, each of the second gas flow channels is connected to the corresponding first gas flow channel through the gas inlet; The ignition distributor comprises a plurality of coaxial annular ignition distributors distributed in the radial direction, each of the annular ignition distributors is provided with fire holes evenly distributed in the circumferential direction, the ignition distributors are embedded in the gas distribution plate, and the fire holes of each annular ignition distributor are connected to the corresponding second gas flow channel; Air supply system, including: A plurality of first air flow channels are provided between each two adjacent second gas flow channels, and the first air flow channels are evenly distributed along the circumferential direction; A plurality of air through holes are arranged between each two adjacent annular flame dividers, and the air through holes are connected to the first air flow channels in a one-to-one correspondence to form a graded oxygen supply channel.

2. The burner according to claim 1, characterized in that It also includes a guide cover, which includes a plurality of detachable annular guide covers, each of which is correspondingly embedded between two adjacent annular fire dividers, and one end of the annular guide cover is folded outward to form a retaining edge fold, and the retaining edge fold covers the fire holes of the adjacent annular fire dividers.

3. The burner according to claim 2, characterized in that: The annular guide cover is formed with a plurality of second air flow channels, the inlet ends of the second air flow channels are communicated with the first air flow channels, and the outlet ends thereof face the fire holes.

4. The burner according to claim 2, characterized in that: The annular fire distributor gradually inclines downward from the outer edge to the center on one side of the folded edge of the baffle.

5. The burner according to claim 2, characterized in that: The retaining edge fold is parallel to a side of the annular fire divider facing the retaining edge fold.

6. The burner according to claim 3, characterized in that The other end of the annular guide cover is inclined toward the baffle fold to form a guide fold to provide guidance for the air entering the second air flow channel.

7. The burner according to claim 1, characterized in that The side wall of the air distribution plate is provided with a plurality of through holes, and the through holes are connected with the first air flow channels in a one-to-one correspondence.

8. A gas stove, characterized in that: The invention comprises a stove head and a burner as claimed in any one of claims 1 to 7.

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