Multi-layer high-fire metal plate furnace end burner

Abstract

The utility model discloses a multi-layer high-fire metal plate furnace end burner which comprises a fixing base, an outer ring furnace end assembly and an inner ring furnace end assembly, wherein the outer ring furnace end assembly and the inner ring furnace end assembly are detachably installed on the fixing base. The outer ring furnace end assembly and the inner ring furnace end assembly each comprise an upper furnace shell, a lower furnace shell and a partition plate. The furnace upper shell and the furnace lower shell are spliced up and down to form a furnace end main body; the furnace end main body comprises a gas mixing cavity and an injection pipe which are connected with each other; the inner ring furnace end assembly is located below the outer ring furnace end assembly. The inner diameter of the gas mixing cavity of the inner ring furnace end assembly is smaller than that of the gas mixing cavity of the outer ring furnace end assembly. According to the utility model, a stepped gas supply system is formed, so that the flame coverage area is increased, and the gradient combustion is optimized; a combined structure of an inverted-cone-shaped fire outlet wall and a partition plate is innovatively adopted, and a spiral fire combustion mode of a spiral fire outlet groove is adopted, so that the flame coverage area can be enlarged, the local high-temperature concentration phenomenon is reduced, uniform distribution of the temperature of a combustion area is achieved, and non-uniform heating of cookware is avoided.

Description

Technical Field

[0001] This utility model relates to the field of stove accessories technology, and in particular to a multi-layer high-power sheet metal burner. Background Technology

[0002] Traditional gas appliance burners are mostly made of materials such as cast iron, aluminum alloy, or copper. However, these materials have significant drawbacks: cast iron is susceptible to corrosion and oxidation, and long-term use can lead to porosity or cracks, resulting in a risk of gas leakage; aluminum alloy has a low melting point and is prone to deformation at high temperatures, affecting combustion stability; while copper has excellent thermal conductivity, it is expensive and has limited oxidation resistance, and under long-term high-temperature conditions, the surface oxide layer is prone to peeling off, shortening its service life. In addition, burners made of traditional materials generally suffer from insufficient surface smoothness and low gas mixing efficiency, which can easily lead to incomplete combustion and pose safety hazards.

[0003] In recent years, stainless steel has gradually become the preferred material for burner manufacturing due to its advantages such as high melting point, resistance to high-temperature oxidation, high surface finish, and strong corrosion resistance. For example, Chinese patent CN202122777870.8 discloses a stainless steel sheet metal assembled burner head structure, which uses two sheet metal parts combined to form an injector tube and an annular mixing chamber. Although this reduces manufacturing costs, it is limited by the structural design, resulting in a single gas supply path that relies solely on direct injection nozzles for ignition.

[0004] This design has significant shortcomings: firstly, the high concentration of flames from the direct-injection burners leads to uneven heat distribution in the combustion zone, easily causing localized overheating; secondly, the lack of a swirling combustion structure results in insufficient mixing of gas and air, leading to low combustion efficiency; and thirdly, it typically consists of a single plate burner head, lacking the multi-layered combustion effect. Therefore, further improvements are needed. Utility Model Content

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a multi-layer high-power sheet metal burner.

[0006] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: a multi-layer high-power sheet metal burner, including: a fixed base, and an outer ring burner assembly and an inner ring burner assembly that can be detachably installed on the fixed base;

[0007] Both the outer and inner ring burner assembly include an upper furnace shell, a lower furnace shell, and a partition plate. The upper and lower furnace shells are assembled vertically to form the main body of the burner. The main body of the burner includes a mixing chamber and an ejector tube connected to each other. The mixing chamber is arranged in an annular shape. The upper furnace shell is provided with an annular inverted conical upper flame outlet wall. The lower furnace shell is provided with an annular inverted conical lower flame outlet wall. The lower flame outlet wall is spaced below the upper flame outlet wall. The upper flame outlet wall has a plurality of spiral upper flame outlet grooves, and the lower flame outlet wall has a plurality of spiral lower flame outlet grooves. The partition plate is disposed between the upper and lower flame outlet walls. The upper and lower flame outlet grooves are both connected to the mixing chamber.

[0008] The inner ring burner assembly is located below the outer ring burner assembly; the inner diameter of the mixing chamber of the inner ring burner assembly is smaller than the inner diameter of the mixing chamber of the outer ring burner assembly.

[0009] Optionally, the outer ring burner assembly is provided with an outer ring positioning hole, and the fixing seat is provided with an outer ring positioning post for connecting to the outer ring positioning hole; the inner ring burner assembly is provided with an inner ring positioning hole, and the fixing seat is provided with an inner ring positioning post for connecting to the inner ring positioning hole.

[0010] Optionally, the fixing base is provided with a plurality of clamping arms, and a first clamping platform is provided above the clamping arms; the outer edge of the outer ring furnace head assembly can be mounted on the first clamping platform.

[0011] Optionally, a second mounting platform is provided in the middle of the mounting arm, and the outer edge of the inner ring furnace head assembly can be mounted on the second mounting platform.

[0012] Optionally, the mounting base is provided with a support arm for mounting the ignition needle and thermocouple.

[0013] Optionally, the ejector tube of the inner ring burner assembly is connected to the mixing chamber along the diameter direction; the ejector tube of the outer ring burner assembly is disposed on the side of the mixing chamber and is tangentially connected to the annular mixing chamber; the ejector tubes of the inner ring burner assembly and the outer ring burner assembly are flush.

[0014] Optionally, the furnace lower shell further includes an inner ring wall, and the lower fire outlet wall is disposed above the inner ring wall; the outer edge of the partition plate is provided with a lower edge retaining part, which can be engaged with the wall surface of the inner ring wall.

[0015] Optionally, the inner edge of the partition plate is provided with an inner locking part, which can be locked onto the inner edge of the lower wall of the flame outlet.

[0016] Optionally, the partition plate is also provided with a U-shaped flame distribution groove; the flame distribution groove is located near the gas outlet end of the ejector tube, and the flame distribution groove is provided with a number of spaced flame distribution holes.

[0017] Optionally, the upper and lower fire outlet slots are arranged alternately.

[0018] The beneficial effects of this invention are as follows: The double-layer spiral flame outlet structure of the outer and inner ring burner components creates a multi-layered swirling flame through the spiral fire channel formed by the upper and lower flame outlet grooves, significantly enhancing the turbulent mixing effect of gas and air. The use of a nested structure with a lower inner ring and varying diameters, where the outer ring mixing chamber diameter is 1.2-1.5 times larger than the inner ring, forms a stepped gas supply system, increasing the flame coverage area and optimizing gradient combustion. The innovative combination of an inverted conical flame outlet wall and a partition plate allows the spiral flame outlet groove's swirling combustion mode to expand the flame coverage area, reduce localized high-temperature concentration, achieve uniform temperature distribution in the combustion zone, and prevent uneven heating of the cookware. The partition plate further optimizes airflow distribution, suppressing the risk of flame backfire or flame detachment, ensuring a stable and reliable combustion process.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the structure of the multi-layer high-power sheet metal burner head of this utility model;

[0022] Figure 2 for Figure 1 Another structural schematic diagram of a multi-layer high-power sheet metal burner;

[0023] Figure 3 for Figure 1 Exploded view of a multi-layer high-power sheet metal burner;

[0024] Figure 4 for Figure 1 Exploded view of the inner ring burner head assembly;

[0025] Figure 5 for Figure 1 Exploded view of the inner and outer ring burner head assembly.

[0026] Explanation of key component symbols:

[0027] 10. Fixed base; 11. Outer ring positioning post; 12. Inner ring positioning post; 13. Clamping arm; 131. First clamping platform; 132. Second clamping platform; 14. Support arm; 20. Outer ring furnace head assembly; 21. Outer ring positioning hole; 30. Inner ring furnace head assembly; 31. Inner ring positioning hole; 40. Furnace upper shell; 41. Flame outlet upper wall; 42. Upper flame outlet groove; 50. Furnace lower shell; 51. Flame outlet lower wall; 52. Lower flame outlet groove; 53. Inner ring wall; 60. Divider plate; 61. Lower edge clamping part; 62. Inner clamping part; 63. Flame distribution baffle groove; 64. Flame distribution hole; 70. Mixing chamber; 80. Injector tube. Detailed Implementation

[0028] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0029] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0030] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0032] Example

[0033] Reference Figures 1 to 5The present invention proposes a multi-layer high-power sheet metal burner, comprising: a fixed base 10, and an outer ring burner assembly 20 and an inner ring burner assembly 30 that are detachably installed on the fixed base 10;

[0034] Both the outer ring burner assembly 20 and the inner ring burner assembly 30 include an upper furnace shell 40, a lower furnace shell 50, and a partition plate 60. The upper furnace shell 40 and the lower furnace shell 50 are assembled vertically to form the main body of the burner. The main body of the burner includes a mixing chamber 70 and an ejector tube 80 connected to each other. The mixing chamber 70 is arranged in an annular shape. The upper furnace shell 40 is provided with an annular inverted conical upper flame outlet wall 41. The lower furnace shell 50 is provided with an annular inverted conical lower flame outlet wall 51. The lower flame outlet walls 51 are spaced below the upper flame outlet walls 41. The upper flame outlet walls 41 have a plurality of spiral upper flame outlet grooves 42, and the lower flame outlet walls 51 have a plurality of spiral lower flame outlet grooves 52. The partition plate 60 is disposed between the upper flame outlet walls 41 and the lower flame outlet walls 51. The upper flame outlet grooves 42 and the lower flame outlet grooves 52 are both connected to the mixing chamber 70.

[0035] The inner ring burner assembly 30 is located below the outer ring burner assembly 20; the inner diameter of the mixing chamber 70 of the inner ring burner assembly 30 is smaller than the inner diameter of the mixing chamber 70 of the outer ring burner assembly 20.

[0036] This invention utilizes a double-layer spiral flame outlet structure design in the outer and inner ring burner assembly 30. The spiral flame channel formed by the upper and lower flame outlet grooves 52 generates a multi-layered swirling flame, significantly enhancing the turbulent mixing effect of gas and air. The use of a nested structure with a lower inner ring and varying diameters, where the outer ring mixing chamber 70 is 1.2-1.5 times larger in diameter than the inner ring, creates a stepped gas supply system, increasing the flame coverage area and optimizing gradient combustion. The innovative combination of an inverted conical flame outlet wall and a partition plate 60 allows the spiral flame outlet grooves to expand the flame coverage area, reduce localized high-temperature concentration, and achieve uniform temperature distribution in the combustion zone, preventing uneven heating of the cookware. The partition plate 60 further optimizes airflow distribution, suppressing the risk of flame backfire or flame detachment, ensuring a stable and reliable combustion process.

[0037] In this embodiment, in order to stably fix the outer ring burner assembly 20 and the inner ring burner assembly 30, the outer ring burner assembly 20 is provided with an outer ring positioning hole 21, and the fixing base 10 is provided with an outer ring positioning post 11 for connecting the outer ring positioning hole 21; the inner ring burner assembly 30 is provided with an inner ring positioning hole 31, and the fixing base 10 is provided with an inner ring positioning post 12 for connecting the inner ring positioning hole 31.

[0038] In this embodiment, the fixing base 10 is provided with a plurality of clamping arms 13, and a first clamping platform 131 is provided above the clamping arms 13; the outer edge of the outer ring burner assembly 20 can be placed on the first clamping platform 131. Furthermore, a second clamping platform 132 is provided in the middle of the clamping arms 13, and the outer edge of the inner ring burner assembly 30 can be placed on the second clamping platform 132. The stepped clamping design realizes axial / radial bidirectional limiting, ensuring structural sealing under high temperature conditions.

[0039] In this embodiment, the mounting base 10 is provided with a support arm 14 for mounting the ignition needle and the thermocouple. The support arm 14 enables precise spatial positioning of the ignition needle and the thermocouple.

[0040] In this embodiment, the ejector tube 80 of the inner ring burner assembly 30 is connected to the mixing chamber 70 along the diameter direction; the ejector tube 80 of the outer ring burner assembly 20 is disposed on the side of the mixing chamber 70 and connected tangentially to the annular mixing chamber 70; the ejector tubes 80 of the inner ring burner assembly 30 and the outer ring burner assembly 20 are flush. For the outer ring burner assembly 20 with a large gas flow rate, the outer ring ejector tube 80 adopts a tangential air intake design. After the gas is introduced into the mixing chamber 70 through the tangential ejector tube 80, it forms a centrifugal swirling motion, which significantly improves the three-dimensional dynamic mixing effect of gas and air.

[0041] In this embodiment, the furnace lower shell 50 also includes an inner ring wall 53, and the flame outlet lower wall 51 is disposed above the inner ring wall 53; the outer edge of the partition plate 60 is provided with a lower edge locking portion 61, which can be locked onto the wall surface of the inner ring wall 53. The lower edge locking portion 61 of the outer edge of the partition plate 60 is engaged with the inner ring wall 53 to achieve screwless assembly: the locking structure makes the partition plate 60 and the inner ring wall 53 fit tightly together.

[0042] Furthermore, the inner edge of the partition plate 60 is provided with an inner locking part 62, which can be locked onto the inner edge of the lower flame outlet wall 51. The inner locking part 62 of the inner edge of the partition plate 60 engages with the lower flame outlet wall 51 to form a dual-point positioning system: the inner and outer locking parts work together to eliminate the vibration displacement of the partition plate 60 and avoid backfire or flameout caused by uneven airflow.

[0043] In this embodiment, the partition plate 60 is also provided with a U-shaped flame distribution groove 63. The flame distribution groove 63 is located near the gas outlet end of the injector tube 80, and has several spaced flame distribution holes 64. The U-shaped structure of the flame distribution groove 63, located near the gas outlet end of the injector tube 80, can buffer and guide the high-speed gas flow, preventing the gas from concentrating and rushing into the flame outlet groove near the gas outlet end of the injector tube 80. Instead, the gas can diffuse towards the mixing chamber 70 and then evenly supply flame to each flame outlet groove. The spaced flame distribution holes 64 on the flame distribution groove 63 can divide the gas flow into multiple fine streams, which can slow down the direct rush of gas from the injector tube 80 into the flame outlet groove at the gas outlet end, making the gas flow in the flame outlet groove more stable.

[0044] In this embodiment, the upper flame outlet 42 and the lower flame outlet 52 are arranged alternately. The upper and lower flames complement each other in space, achieving a three-dimensional distribution of heat, reducing the heat accumulation problem of traditional single-layer direct-injection flame holes, and are especially suitable for cookware of different shapes, improving heating efficiency and energy utilization.

[0045] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A multi-layer high-power sheet metal burner, characterized in that, include: A fixed base (10), and an outer ring burner assembly (20) and an inner ring burner assembly (30) detachably mounted on the fixed base (10); Both the outer ring burner assembly (20) and the inner ring burner assembly (30) include an upper furnace shell (40), a lower furnace shell (50), and a partition plate (60); the upper furnace shell (40) and the lower furnace shell (50) are assembled vertically to form the main body of the burner, and the main body of the burner includes an interconnected mixing chamber (70) and an ejector tube (80); the mixing chamber (70) is arranged in an annular shape; the upper furnace shell (40) is provided with an annular inverted conical flame outlet upper wall (41); the lower furnace shell (50) is provided with an annular... A cone-shaped lower flame outlet wall (51) is provided at intervals below the upper flame outlet wall (41); the upper flame outlet wall (41) is provided with a plurality of spiral upper flame outlet grooves (42), and the lower flame outlet wall (51) is provided with a plurality of spiral lower flame outlet grooves (52); a partition plate (60) is provided between the upper flame outlet wall (41) and the lower flame outlet wall (51), and both the upper flame outlet grooves (42) and the lower flame outlet grooves (52) are connected to the mixing chamber (70); The inner ring burner assembly (30) is located below the outer ring burner assembly (20); the inner diameter of the mixing chamber (70) of the inner ring burner assembly (30) is smaller than the inner diameter of the mixing chamber (70) of the outer ring burner assembly (20).

2. The multi-layer high-power sheet metal burner according to claim 1, characterized in that: The outer ring burner assembly (20) is provided with an outer ring positioning hole (21), and the fixing seat (10) is provided with an outer ring positioning post (11) for connecting the outer ring positioning hole (21); the inner ring burner assembly (30) is provided with an inner ring positioning hole (31), and the fixing seat (10) is provided with an inner ring positioning post (12) for connecting the inner ring positioning hole (31).

3. The multi-layer high-power sheet metal burner according to claim 2, characterized in that: The fixed base (10) is provided with a plurality of clamping arms (13), and a first clamping platform (131) is provided above the clamping arms (13); the outer edge of the outer ring furnace head assembly (20) can be mounted on the first clamping platform (131).

4. The multi-layer high-power sheet metal burner according to claim 3, characterized in that: A second mounting platform (132) is provided in the middle of the mounting arm (13), and the outer edge of the inner ring furnace head assembly (30) can be mounted on the second mounting platform (132).

5. The multi-layer high-power sheet metal burner according to claim 2, characterized in that: The mounting base (10) is provided with a support arm (14) for mounting the ignition needle and thermocouple.

6. The multi-layer high-power sheet metal burner according to claim 1, characterized in that: The ejector tube (80) of the inner ring burner assembly (30) is connected to the mixing chamber (70) along the diameter direction; the ejector tube (80) of the outer ring burner assembly (20) is disposed on the side of the mixing chamber (70) and connected to the annular mixing chamber (70) tangentially; the ejector tube (80) of the inner ring burner assembly (30) and the ejector tube (80) of the outer ring burner assembly (20) are flush.

7. The multi-layer high-power sheet metal burner according to claim 1, characterized in that: The furnace lower shell (50) also includes an inner ring wall (53), and the fire outlet lower wall (51) is disposed above the inner ring wall (53); the outer edge of the partition plate (60) is provided with a lower edge locking part (61), which can be locked onto the wall surface of the inner ring wall (53).

8. The multi-layer high-power sheet metal burner according to claim 7, characterized in that: The inner edge of the partition plate (60) is provided with an inner locking part (62), which can be locked onto the inner edge of the lower fire outlet wall (51).

9. The multi-layer high-power sheet metal burner according to claim 1, characterized in that: The partition plate (60) is also provided with a "U"-shaped flame divider groove (63); the flame divider groove (63) is provided near the gas outlet end of the ejector tube (80), and the flame divider groove (63) is provided with a number of spaced flame divider holes (64).

10. The multi-layer high-power sheet metal burner according to claim 1, characterized in that: The upper fire outlet groove (42) and the lower fire outlet groove (52) are arranged alternately.

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