Burner base and upper air burner

Abstract

The present invention provides a burner base and an upper air inlet burner. The burner base includes a base body and a chassis; the base body is provided with an outer ring ejector tube upper portion, an inner ring ejector tube upper portion, a base outer ring air duct, and a base inner ring air duct; the chassis is provided with an outer ring air inlet and an inner ring air inlet, and the connection surface between the chassis and the base body is a plane; wherein, the outer ring ejector tube upper portion is mounted on the base body to form an outer ring ejector tube, and the inner ring ejector tube upper portion is mounted on the base body to form an inner ring ejector tube. The base body of the burner base is provided with an outer ring ejector tube upper portion and an inner ring ejector tube upper portion, the outer ring ejector tube upper portion is connected to the chassis to form an outer ring ejector tube, and the inner ring ejector tube upper portion is connected to the chassis to form an inner ring ejector tube, thereby greatly reducing the thickness of the burner base.

Description

Technical Field

[0001] The invention relates to the field of kitchen appliances, in particular to a stove base and an upper air inlet burner. Background Art

[0002] The fully top-inlet burner was introduced to China from Europe in the 1990s. Gas stoves equipped with top-inlet burners have many advantages. For example, the primary and secondary air required for combustion in the fully top-inlet burner come from the upper part of the stove panel, so there is no need to open vents on the cabinet, and the bottom shell of the gas stove can also be made fully enclosed. Compared with the traditional bottom-inlet burner, the fully top-inlet burner is safer to use. However, due to the structural limitations of the top-inlet burner, the burner's ejector pipe is relatively short, resulting in a relatively small heat load on the top-inlet burner. Domestic Chinese cooking requires a large-load burner for high-fire stir-frying, which limits the development of gas stoves with top-inlet burners in China. If the length of the ejector pipe is simply increased to increase the heat load of the top-inlet burner, the thickness of the top-inlet burner and the uneven premixing of the intake air will increase, which will have negative effects such as uneven premixing of the intake air. Summary of the Invention

[0003] The object of the present invention is to provide a burner base, on which the upper part of an outer ring ejector tube and the upper part of an inner ring ejector tube are arranged on the base body of the burner base, the upper part of the outer ring ejector tube is connected to the chassis to form an outer ring ejector tube, and the upper part of the inner ring ejector tube is connected to the chassis to form an inner ring ejector tube, thereby greatly reducing the thickness of the burner base.

[0004] To achieve the purpose of the present invention, the present invention adopts the following technical solutions:

[0005] According to one aspect of the present invention, a burner base is provided, comprising a base body and a chassis. The base body is provided with an upper portion of an outer ring ejector tube, an upper portion of an inner ring ejector tube, a base outer ring air duct, and a base inner ring air duct, the upper portion of the outer ring ejector tube being in communication with the base outer ring air duct, and the upper portion of the inner ring ejector tube being in communication with the base inner ring air duct; the chassis is provided with an outer ring air inlet and an inner ring air inlet, and the connection surface between the chassis and the base body is a plane; wherein the upper portion of the outer ring ejector tube is mounted on the base body to form an outer ring ejector tube, the upper portion of the inner ring ejector tube is mounted on the base body to form an inner ring ejector tube, the outer ring ejector tube is in communication with an air supply pipeline via the outer ring air inlet, and the inner ring ejector tube is in communication with the air supply pipeline via the inner ring air inlet.

[0006] According to one embodiment of the present invention, there are three outer ring ejector tubes on the upper part, and they are evenly spaced and arranged on the base body. The axes of the outer ring ejector tubes are all spirally extended from the outer periphery of the base body to the center of the base body into the outer ring air channel of the base.

[0007] According to one embodiment of the present invention, an inner ring gas channel and an outer ring gas channel are provided on the bottom surface of the chassis away from the base body, the inner ring air inlet is provided in the inner ring gas channel, the outer ring gas channel is provided along the circumference of the chassis, there are three outer ring air inlets, and they are equally spaced in the outer ring gas channel, and the outer ring air inlets are opposite to the inlet of the outer ring ejector pipe.

[0008] According to one embodiment of the present invention, the burner base further includes an inner ring gas nozzle and an outer ring gas nozzle for primary gas mixing, the inner ring ejector pipe is connected to the inner ring gas channel through the inner ring gas nozzle via the inner ring air inlet, and the outer ring ejector pipe is connected to the outer ring gas channel through the outer ring gas nozzle via the outer ring air inlet.

[0009] According to another aspect of the present invention, an upper air inlet burner is provided. The upper air inlet burner includes the aforementioned burner base, gas distribution plate assembly and fire cover assembly. The gas distribution plate assembly includes a gas distribution plate body connected to the base body, the gas distribution plate body is provided with a gas distribution plate outer ring premixing chamber and a gas distribution plate inner ring air duct, the gas distribution plate outer ring premixing chamber is communicated with the base outer ring air duct, and the gas distribution plate inner ring air duct is communicated with the base inner ring air duct; the fire cover assembly includes an outer fire cover and an inner fire cover, the outer fire cover is provided on the top of the gas distribution plate outer ring premixing chamber and is provided with outer fire holes along its circumference, the inner fire cover is provided on the gas distribution plate inner ring air duct and is provided with inner fire holes along its circumference.

[0010] According to one embodiment of the present invention, the outer fire holes are arranged along the axial direction of the outer fire cover to form a honeycomb-shaped combustion network, and the combustion network cover is arranged on the top of the outer ring premixing chamber of the gas distribution plate.

[0011] According to one embodiment of the present invention, there are three outer ring premixing chambers of the gas distribution disk, which are arranged at intervals along the circumference of the gas distribution disk body. The outer ring premixing chambers of the gas distribution disk are respectively in the shape of a spiral trumpet and extend from the center of the gas distribution disk body to the edge of the gas distribution disk body.

[0012] According to one embodiment of the present invention, the gas distributor assembly further includes flow equalizers spaced apart in the outer ring premixing chamber of the gas distributor, and the flow equalizers extend from the center of the gas distributor body to the edge of the gas distributor body.

[0013] According to one embodiment of the present invention, the gas distribution plate assembly further includes a flow distribution plate sandwiched between the combustion network and the gas distribution plate body, the flow distribution plate is connected to the gas distribution plate body and is provided with through holes at intervals.

[0014] According to one embodiment of the present invention, the upper air inlet burner also includes a central air inlet pipe or an anti-dry burning device, and mounting holes are respectively provided in the center of the burner base and the gas distribution plate assembly, and the central air inlet pipe or the anti-dry burning device is arranged in the mounting hole.

[0015] According to an embodiment of the present invention, a central gas channel is provided on the chassis, and the central air intake pipe is connected to the gas supply pipeline through the central gas channel.

[0016] An embodiment of the present invention has the following advantages or beneficial effects:

[0017] The burner base of the present invention is equipped with an outer ring ejector tube upper portion and an inner ring ejector tube upper portion on the base body. The outer ring ejector tube upper portion is connected to the base plate to form the outer ring ejector tube, while the inner ring ejector tube upper portion is connected to the base plate to form the inner ring ejector tube. This significantly reduces the thickness of the burner base. The three outer ring ejector tube upper portions are evenly spaced on the base body and extend in a spiral shape along the radial direction of the base body, increasing the heat load of the burner and ensuring more stable combustion. The burner base can also be used with various types of gas distribution plate assemblies to form different types of top-inlet burners. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the accompanying drawings.

[0019] Figure 1 FIG. 1 is a bottom view of a burner base according to an exemplary embodiment.

[0020] Figure 2 FIG1 is a perspective view of an upward air intake burner according to an exemplary embodiment.

[0021] Figure 3 A partial cross-sectional view of an upper air intake burner according to an exemplary embodiment is shown. Figure 1 .

[0022] Figure 4 A partial cross-sectional view of an upper air intake burner according to an exemplary embodiment is shown. Figure 2 .

[0023] Figure 5 FIG. 1 is an exploded view of an updraft burner according to an exemplary embodiment.

[0024] Figure 6 FIG. 1 is a perspective view of another top-inlet burner according to an exemplary embodiment.

[0025] Figure 7 is a partial cross-sectional view of another upper air intake burner according to an exemplary embodiment. Figure 1 .

[0026] Figure 8 is a partial cross-sectional view of another upper air intake burner according to an exemplary embodiment. Figure 2 .

[0027] Figure 9 FIG. 1 is an exploded view of another up-air intake burner according to an exemplary embodiment.

[0028] The description of the accompanying drawings is as follows:

[0029] 1. Base body; 11. Upper part of outer ring ejector tube; 12. Upper part of inner ring ejector tube; 13. Base outer ring air duct; 14. Base inner ring air duct; 2. Chassis; 21. Outer ring air inlet; 22. Inner ring air inlet; 23. Inner ring gas channel; 24. Outer ring gas channel; 25. Center gas channel; 31. Inner ring gas nozzle; 32. Outer ring gas nozzle; 4. Gas distributor assembly; 41. Gas distributor body; 411. Gas distributor outer ring premixing chamber; 412. Gas distributor inner ring air duct; 42. Flow equalizer; 43. Flow equalizer; 431. Through hole; 5. Fire cover assembly; 51. Outer fire cover; 511. Outer fire hole; 512. Combustion net; 52. Inner fire cover; 521. Inner fire hole; 6. Center air inlet pipe. DETAILED DESCRIPTION

[0030] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.

[0031] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0032] like Figures 1 to 9 As shown, Figure 1 A bottom view of a burner base provided by the present invention is shown. Figure 2 A three-dimensional diagram of an upper air inlet burner provided by the present invention is shown. Figure 3 A partial cross-sectional view of an upper air inlet burner provided by the present invention is shown. Figure 1 . Figure 4 A partial cross-sectional view of an upper air inlet burner provided by the present invention is shown. Figure 2 . Figure 5Shown is an exploded view of an up-air-inlet burner provided by the present invention. Figure 6 A three-dimensional view of another upper air inlet burner provided by the present invention is shown. Figure 7 A partial cross-sectional view of another upper air inlet burner provided by the present invention is shown. Figure 1 . Figure 8 A partial cross-sectional view of another upper air inlet burner provided by the present invention is shown. Figure 2 . Figure 9 Shown is an exploded view of another up-air inlet burner provided by the present invention.

[0033] The burner base of the embodiment of the present invention includes a base body 1 and a chassis 2. The base body 1 is provided with an outer ring ejector tube upper portion 11, an inner ring ejector tube upper portion 12, a base outer ring air duct 13, and a base inner ring air duct 14. The outer ring ejector tube upper portion 11 is connected to the base outer ring air duct 13, and the inner ring ejector tube upper portion 12 is connected to the base inner ring air duct 14. The chassis 2 is provided with an outer ring air inlet 21 and an inner ring air inlet 22, and the connection surface between the chassis 2 and the base body 1 is flat. The outer ring ejector tube upper portion 11 is mounted on the base body 1 to form an outer ring ejector tube, and the inner ring ejector tube upper portion 12 is mounted on the base body 1 to form an inner ring ejector tube. The outer ring ejector tube is connected to the gas supply pipeline through the outer ring air inlet 21, and the inner ring ejector tube is connected to the gas supply pipeline through the inner ring air inlet 22.

[0034] Among them, the outer ring ejector tube upper part 11 and the inner ring ejector tube upper part 12 are respectively protruded upward from the base body 1, the top surface of the chassis 2 is a plane, and the chassis 2 forms the outer ring ejector tube lower part at the corresponding position of the outer ring ejector tube upper part 11, and forms the inner ring ejector tube lower part at the corresponding position of the inner ring ejector tube upper part 12. When the base body 1 is covered on the chassis 2, the outer ring ejector tube and the inner ring ejector tube are respectively formed, which greatly reduces the space required for the inner ring ejector tube and the outer ring ejector tube, reduces the thickness of the burner base, and thereby reduces the thickness of the upper air inlet burner. An outer ring air inlet 21 and an inner ring air inlet 22 are respectively provided on the chassis 2, wherein the outer ring air inlet 21 is connected with the air inlet end of the outer ring ejector tube, and the inner ring air inlet 22 is connected with the air inlet end of the inner ring ejector tube. One path of gas is mixed with air at the inner ring air inlet 22 and then enters the inner ring ejector tube and then enters the inner ring air duct 14 of the base. The other path of gas is mixed with air at the outer ring air inlet 21 and then enters the outer ring ejector tube and then enters the outer ring air duct 13 of the base, thereby improving the interchangeability of the burner base and can be combined with different gas distribution plate assemblies 4 to form different types of upper air inlet burners, saving costs and improving production efficiency.

[0035] In a preferred embodiment of the present invention, there are three upper parts 11 of the outer ring ejector tubes, which are evenly spaced and arranged on the base body 1. The outer ring ejector tubes are all spirally extended from the outer periphery of the base body 1 to the center of the base body 1 into the outer ring air channel 13 of the base.

[0036] like Figure 5 and Figure 9 As shown, the upper portions 11 of the three outer ring ejector tubes are arranged at equal intervals on the base body 1, that is, the inner ends of the axes of the upper portions 11 of the three outer ring ejector tubes are arranged at 120° intervals on the outer ring airway and are respectively connected to the outer ring airway, so that the outer ring airway can evenly and simultaneously intake air through the three outer ring ejector tubes, and the intake air premixing is more uniform. At the same time, the axes of the three outer ring ejector tubes are spiral, which increases the length of the outer ring ejector tubes, thereby achieving the high-efficiency and high-load use effect of the upper air intake burner. The outer air intake end of the outer ring ejector tube is connected to the outer ring gas channel 24 through the outer ring gas nozzle 32, and the inner air outlet end of the outer ring ejector tube is connected to the outer ring airway 13 of the base. The outer air intake end of the inner ring ejector tube is connected to the inner ring gas channel 23 through the inner ring gas nozzle 31, and the inner air outlet end of the inner ring ejector tube is connected to the inner ring airway 14 of the base.

[0037] Preferably, an inner ring ejector tube is arranged between two outer ring ejector tubes, the axis of the inner ring ejector tube is also spiral, and extends from the outer periphery of the base body 1 to the center of the base body 1 into the base inner ring air channel 14 to increase the heat load of the inner ring fire of the burner.

[0038] In a preferred embodiment of the present invention, the bottom surface of the chassis 2 away from the base body 1 is provided with an inner ring gas channel 23 and an outer ring gas channel 24, the inner ring air inlet 22 is provided in the inner ring gas channel 23, the inner ring air inlet 22 is opposite to the inlet of the inner ring ejector tube, the outer ring gas channel 24 is provided along the circumference of the chassis 2, there are three outer ring air inlets 21, and they are evenly spaced in the outer ring gas channel 24, and the outer ring air inlet (21) is opposite to the inlet of the outer ring ejector tube.

[0039] like Figure 1 、 Figure 5 and Figure 9 As shown, the outer ring gas channel 24 is arranged along the circumference of the chassis 2. It can be three straight air channels connected in sequence, or it can be a circular air channel. Taking into account the manufacturing process, the present invention adopts three straight air channels connected in sequence, and three outer ring air inlets 21 are arranged at intervals in the outer ring gas channel 24, so that the air inlet ends of the three outer ring ejector pipes are connected to the outer ring gas channel 24 through the outer ring air inlet 21, and the air outlet ends of the three outer ring ejector pipes are connected to the outer ring air channel. When the gas flows in the outer ring gas channel 24, a part of the gas enters an outer ring ejector pipe each time it passes through an outer ring air inlet 21, and the outer ring air channel is simultaneously supplied with air through the three outer ring ejector pipes to ensure the combustion stability of the burner.

[0040] In a preferred embodiment of the present invention, the burner base also includes an inner ring gas nozzle 31 and an outer ring gas nozzle 32 for primary gas mixing. The inner ring ejector pipe is connected to the inner ring gas channel 23 through the inner ring gas nozzle 31 via the inner ring air inlet 22, and the outer ring ejector pipe is connected to the outer ring gas channel 24 through the outer ring gas nozzle 32 via the outer ring air inlet 21.

[0041] like Figures 3 to 5 、 Figures 7 to 9 As shown, an inner ring gas nozzle 31 is provided at the air inlet end of the inner ring ejector tube, and outer ring gas nozzles 32 are respectively provided at the air inlet ends of the three outer ring ejector tubes. Air inlet holes are provided at equal intervals along the circumference of the inner ring gas nozzle 31 on the side wall. A certain amount of air and gas can be sucked in and mixed with each other through the negative pressure brought about by the internal flow of gas in the inner ring gas nozzle 31 before entering the inner ring ejector tube. Air inlet holes are provided at equal intervals along the circumference of the outer ring gas nozzle 32. A certain amount of air and gas can be sucked in and mixed with each other through the negative pressure brought about by the internal flow of gas in the outer ring gas nozzle 32 before entering the outer ring ejector tube.

[0042] The base body 1 of the burner base of the present invention is provided with an outer ring ejector tube upper portion 11 and an inner ring ejector tube upper portion 12. The outer ring ejector tube upper portion 11 is connected to the chassis 2 to form an outer ring ejector tube, and the inner ring ejector tube upper portion 12 is connected to the chassis 2 to form an inner ring ejector tube, which greatly reduces the thickness of the burner base. In addition, an inner ring gas channel 23 and an outer ring gas channel 24 can be provided on the chassis 2. The outer ring air inlet 21 is spaced apart at the outer ring gas channel 24, so that gas can enter the outer ring ejector tube through the three outer ring air inlets 21, thereby increasing the uniformity of gas entering the outer ring gas channel 13 of the base through the outer ring ejector tube. The three outer ring ejector tube upper portions 11 are equally spaced apart on the base body 1 and extend spirally along the radial direction of the base body 1, so that the length of the outer ring ejector tube is increased, thereby increasing the heat load of the burner, making combustion more stable, and can also be matched with various types of gas distribution plate assemblies 4 to form different types of upper air inlet burners.

[0043] The upper air inlet burner of the embodiment of the present invention includes the aforementioned burner base, gas distribution plate assembly 4 and fire cover assembly 5. The gas distribution plate assembly 4 includes a gas distribution plate body 41 connected to the base body 1, and the gas distribution plate body 41 is provided with a gas distribution plate outer ring premixing chamber 411 and a gas distribution plate inner ring air duct 412. The gas distribution plate outer ring premixing chamber 411 is connected to the base outer ring air duct 13, and the gas distribution plate inner ring air duct 412 is connected to the base inner ring air duct 14; the fire cover assembly 5 includes an outer fire cover 51 and an inner fire cover 52. The outer fire cover 51 is provided on the top of the gas distribution plate outer ring premixing chamber 411 and is provided with outer fire holes 511 along its circumference. The inner fire cover 52 is provided on the gas distribution plate inner ring air duct 412 and is provided with inner fire holes 521 along its circumference.

[0044] like Figures 2 to 5As shown, after the gas distribution plate body 41 is connected to the base body 1, the outer ring premixing chamber 411 of the gas distribution plate is connected to the outer ring air duct 13 of the base, and the inner ring air duct 412 of the gas distribution plate is connected to the inner ring air duct 14 of the base, and the gas in the inner ring air duct 14 and the outer ring air duct 13 of the base are respectively introduced into the inner ring air duct 412 of the gas distribution plate and the outer ring premixing chamber 411 of the gas distribution plate and mixed evenly again. When the outer fire cover 51 with the outer fire hole 511 is set on the top of the outer ring premixing chamber 411 of the gas distribution plate, the gas burns through the outer fire hole 511 to form an outer ring flame. When the inner fire cover 52 with the inner fire hole 521 is set on the top of the inner ring air duct 412 of the gas distribution plate, the gas burns through the inner fire hole 521 to form an inner ring flame.

[0045] In a preferred embodiment of the present invention, the outer fire holes 511 are arranged along the axial direction of the outer fire cover 51 to form a honeycomb-shaped combustion network 512, and the combustion network 512 is covered on the top of the outer ring premixing chamber 411 of the gas distribution plate.

[0046] like Figures 6 to 9 As shown, the extension direction of the outer fire hole 511 is arranged parallel to the axial direction of the outer fire cover 51, and the dense outer fire holes 511 are arranged at intervals on the outer fire cover 51 to form a combustion network 512, thereby forming an infrared burner.

[0047] In a preferred embodiment of the present invention, there are three outer ring premixing chambers 411 of the gas distribution plate, and they are arranged at intervals along the circumference of the gas distribution plate body 41. The outer ring premixing chambers 411 of the gas distribution plate are respectively spiral trumpet-shaped and extend from the center of the gas distribution plate body 41 to the edge of the gas distribution plate body 41.

[0048] like Figures 2 to 5 As shown, the three outer ring premixing chambers 411 of the gas distributor are fan-shaped, with the centerlines of each chamber 411 spaced 120 degrees apart. The fully mixed gas passes through each of the three outer ring premixing chambers 411 and reaches the combustion network 512. The outer ring premixing chambers 411 extend in a spiral trumpet shape, extending the gas passages within the chambers 411, thereby ensuring more complete mixing of the gas and air and improving the stability of gas combustion.

[0049] In a preferred embodiment of the present invention, the gas distributor assembly 4 further includes a flow equalizer 42 spaced apart in the outer ring premixing chamber 411 of the gas distributor, and the flow equalizer 42 extends from the center of the gas distributor body 41 to the edge of the gas distributor body 41 .

[0050] like Figures 6 to 9 As shown, the flow plate 42 extends radially along the outline of the outer ring premixing chamber 411 of the gas distribution plate, so that the gas in the outer ring premixing chamber 411 of the gas distribution plate diffuses along the extension direction of the flow plate 42, thereby improving the diffusion uniformity of the gas.

[0051] In a preferred embodiment of the present invention, the gas distribution plate assembly 4 further includes a uniform flow plate 43 sandwiched between the combustion network 512 and the gas distribution plate body 41. The uniform flow plate 43 is connected to the gas distribution plate body 41 and is spaced apart with through holes 431.

[0052] like Figures 6 to 9 As shown, the flow equalizer plate 43 is arranged between the combustion net 512 and the gas distribution plate body 41 and has an annular structure. The closer to the center of the gas distribution plate body 41, the greater the pressure of the air flow is and the less stable it is. Therefore, the flow equalizer plate 43 is set near the center of the gas distribution plate body 41. A through hole 431 is opened on the flow equalizer plate 43. After the mixed gas enters the outer ring premixing chamber 411 of the gas distribution plate, a part of the mixed gas diffuses outward along the flow equalizer plate 42, and the other part diffuses evenly upward through the through hole 431, so that the mixed gas is more uniform when it reaches the combustion net 512.

[0053] In a preferred embodiment of the present invention, the top-inlet burner further includes a central air inlet pipe 6 or a dry-burn prevention device. Mounting holes are provided in the center of the burner base and the gas distribution plate assembly 4, respectively. The central air inlet pipe 6 or the dry-burn prevention device is mounted within these mounting holes. A central gas passage 25 is provided on the chassis 2, through which the central air inlet pipe 6 communicates with the gas supply line.

[0054] like Figures 2 to 9 As shown, mounting holes are respectively provided on the base body 1 and the chassis 2 of the burner base, and mounting holes are also provided in the center of the gas distribution plate body 41 and the uniform flow plate 43. The central air inlet pipe 6 passes through the chassis 2, the base body 1, the gas distribution plate body 41 and the uniform flow plate 43 from bottom to top. A central gas nozzle is provided at the bottom air inlet end of the central air inlet pipe 6, which is connected to the central gas channel 25 through the central gas nozzle. The top air outlet end of the central air inlet pipe 6 forms a central fire, further increasing the firepower of the burner. When the central air inlet pipe is not provided, an anti-dry burning device can also be provided. When the pot is placed above the burner, the anti-dry burning device passes through the chassis 2, the base body 1, the gas distribution plate body 41 and the uniform flow plate 43 from bottom to top and reaches the bottom of the pot. When the temperature of the pot is sensed to be too high, the burner is controlled to shut down by the controller. The central gas channel 25, the inner ring gas channel 23 and the outer ring gas channel 24 are simultaneously provided on the chassis 2, which can reduce the thickness of the entire burner, save materials and reduce costs, and is particularly suitable for use in ultra-thin flat stoves.

[0055] The upper air inlet burner of the present invention includes a burner base, an air distribution plate assembly 4 and a fire cover assembly 5. An outer ring ejector tube upper portion 11 and an inner ring ejector tube upper portion 12 are provided on the base body 1 of the burner base. The outer ring ejector tube upper portion 11 is connected to the chassis 2 to form an outer ring ejector tube, and the inner ring ejector tube upper portion 12 is connected to the chassis 2 to form an inner ring ejector tube, which greatly reduces the thickness of the burner base, thereby reducing the overall thickness of the upper air inlet burner. The burner base is matched with different types of air distribution plate bodies 41 to form upper air inlet burners of different models, which has good interchangeability, saves costs and improves production efficiency. A uniform flow plate 42 and a uniform flow plate 43 are provided on the air distribution plate body 41. The mixed gas of gas and air diffuses along the uniform flow plate 42 to the periphery of the air distribution plate body 41 and diffuses upward along the through hole 431 of the uniform flow plate 43, so that the intake premixing of the mixed gas is more uniform.

[0056] In the embodiments of the present invention, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art will understand the specific meanings of these terms in the embodiments of the present invention based on specific circumstances.

[0057] In the description of the embodiments of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the embodiments of the present invention.

[0058] Throughout this specification, terms such as "one embodiment" and "a preferred embodiment" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0059] The above is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible in the present invention. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A burner base, characterized in that: include: A base body (1), the base body (1) being provided with an outer ring ejector tube upper portion (11), an inner ring ejector tube upper portion (12), a base outer ring air passage (13) and a base inner ring air passage (14), the outer ring ejector tube upper portion (11) being in communication with the base outer ring air passage (13), and the inner ring ejector tube upper portion (12) being in communication with the base inner ring air passage (14); and A chassis (2), wherein the chassis (2) is provided with an outer ring air inlet (21) and an inner ring air inlet (22), and the connection surface between the chassis (2) and the base body (1) is a plane; The outer ring ejector tube upper portion (11) is mounted on the base body (1) to form an outer ring ejector tube, the inner ring ejector tube upper portion (12) is mounted on the base body (1) to form an inner ring ejector tube, the outer ring ejector tube is connected to the air supply pipeline through the outer ring air inlet (21), and the inner ring ejector tube is connected to the air supply pipeline through the inner ring air inlet (22); The outer ring ejector tubes (11) are three in number and are arranged on the base body (1) at equal intervals. The outer ring ejector tubes are all spirally extended from the outer periphery of the base body (1) toward the center of the base body (1) into the base outer ring air channel (13); The upper portion (11) of the outer ring ejector tube and the upper portion (12) of the inner ring ejector tube are respectively raised upward from the base body (1); An inner ring ejector tube is arranged between the two outer ring ejector tubes, the axis of the inner ring ejector tube also being spiral-shaped and extending from the outer periphery of the base body (1) toward the center of the base body (1) and into the base inner ring air passage (14); An inner ring gas channel (23) and an outer ring gas channel (24) are provided on the bottom surface of the chassis (2) away from the base body (1); the inner ring gas inlet (22) is provided in the inner ring gas channel (23); the outer ring gas channel (24) is provided along the circumference of the chassis (2); there are three outer ring gas inlets (21) which are evenly spaced in the outer ring gas channel (24); and the outer ring gas inlets (21) are directly opposite to the inlet of the outer ring ejector pipe.

2. The burner base according to claim 1, characterized in that: The invention also includes an inner ring gas nozzle (31) and an outer ring gas nozzle (32) for primary gas mixing, wherein the inner ring ejector pipe is connected to the inner ring gas channel (23) through the inner ring gas nozzle (31) via the inner ring air inlet (22), and the outer ring ejector pipe is connected to the outer ring gas channel (24) through the outer ring gas nozzle (32) via the outer ring air inlet (21).

3. An upward air inlet burner, characterized in that: include: The burner base according to any one of claims 1 to 2; An air distribution disc assembly (4) comprises an air distribution disc body (41) connected to the base body (1), the air distribution disc body (41) being provided with an air distribution disc outer ring premixing chamber (411) and an air distribution disc inner ring air passage (412), the air distribution disc outer ring premixing chamber (411) being in communication with the base outer ring air passage (13), and the air distribution disc inner ring air passage (412) being in communication with the base inner ring air passage (14); and A fire cover assembly (5), the fire cover assembly (5) comprising an outer fire cover (51) and an inner fire cover (52), the outer fire cover (51) being arranged on the top of the outer ring premixing chamber (411) of the gas distribution plate and having outer fire holes (511) opened along its circumference, and the inner fire cover (52) being arranged on the inner ring air passage (412) of the gas distribution plate and having inner fire holes (521) opened along its circumference; The gas separation disk outer ring premixing chambers (411) are three and are spaced apart along the circumference of the gas separation disk body (41). The gas separation disk outer ring premixing chambers (411) are respectively in the shape of spiral trumpets and extend from the center of the gas separation disk body (41) to the edge of the gas separation disk body (41). The outer ring premixing chambers (411) are connected to the spiral outer ring ejector pipe.

4. The upward air inlet burner according to claim 3, characterized in that: The outer fire holes (511) are arranged along the axial direction of the outer fire cover (51) to form a honeycomb-shaped combustion network (512), and the combustion network (512) is covered on the top of the outer ring premixing chamber (411) of the gas distribution plate.

5. The upward air inlet burner according to claim 4, characterized in that: The gas distribution plate assembly (4) further comprises a flow equalizer plate (42) spaced apart within the outer ring premixing chamber (411) of the gas distribution plate, wherein the flow equalizer plate (42) extends from the center of the gas distribution plate body (41) to the edge of the gas distribution plate body (41).

6. The upward air inlet burner according to claim 4, characterized in that: The gas distribution plate assembly (4) further comprises a flow distribution plate (43) sandwiched between the combustion net (512) and the gas distribution plate body (41); the flow distribution plate (43) is connected to the gas distribution plate body (41) and is provided with through holes (431) at intervals.

7. The upward air inlet burner according to claim 3, characterized in that: It also includes a central air inlet pipe (6) or an anti-dry burning device, and the center of the burner base and the gas distribution plate assembly (4) are respectively provided with mounting holes, and the central air inlet pipe (6) or the anti-dry burning device is arranged in the mounting holes.

8. The upward air inlet burner according to claim 7, characterized in that: A central gas channel (25) is provided on the chassis (2), and the central air intake pipe (6) is connected to the gas supply pipeline through the central gas channel (25).

Images