Underneath-embedded high-fire metal plate furnace end burner

Abstract

The utility model discloses a downward-embedded high-fire metal plate furnace end burner which comprises a fixing base, an outer ring furnace end assembly, an inner ring furnace end assembly and a top gland. The outer ring furnace end assembly, the inner ring furnace end assembly and the top gland are detachably installed on the fixing base. 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; the top gland is mounted at the top of the fixed seat, and the outer ring furnace end assembly is pressed on the fixed seat; and a top connecting hole is formed above the top gland. The combined structure of the inverted-cone-shaped fire outlet wall and the partition plate is innovatively adopted, and the spiral fire combustion mode of the spiral fire outlet groove is adopted, so that the flame coverage area can be enlarged, the local high-temperature concentration phenomenon is reduced, the temperature of a combustion area is evenly distributed, and the situation that a pot is heated unevenly is avoided; the top gland and the cooker panel are assembled in an embedded mode, the combustor integrally sinks to be flush with the embedded hole of the cooker panel, and the cleaning efficiency is improved through sealing fit of the anti-overflow water disc and the embedded hole.

Description

Technical Field

[0001] This utility model relates to the field of stove technology, and in particular to an embedded 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 combines upper and lower sheet metal parts 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: First, the high concentration of flames from the direct-injection burners leads to uneven heat distribution in the combustion zone, easily causing localized overheating. Second, the lack of a swirling flame combustion structure results in incomplete mixing of gas and air, leading to low combustion efficiency; it is typically composed of a single sheet metal burner head, lacking the multi-layered combustion effect. Third, the burner caps are mostly exposed above the cooktop panel, making cleaning difficult and limiting the variety of cooktop designs. 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 an embedded high-power sheet metal burner.

[0006] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: a bottom-embedded high-power sheet metal burner, including: a fixed base, and an outer ring burner assembly, an inner ring burner assembly and a top cover that are 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] The top cover is installed on the top of the fixed base and presses the outer ring burner assembly onto the fixed base; a top connection hole is provided above the top cover; the top cover has an annular cover plate structure, which can be embedded into the mounting hole of the stove panel and the water tray can be installed through the top connection hole.

[0010] Optionally, the mounting base is also equipped with a central cover; the central cover is installed between the inner ring burner assembly and the outer ring burner assembly, and presses the inner ring burner assembly onto the mounting base; the central cover has an annular cover structure and can cover the top of the inner ring burner assembly.

[0011] 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.

[0012] Optionally, the fixing base is provided with a plurality of clamping arms, and a first clamping platform is provided above the clamping arms; the top pressure cover is installed on the clamping arms and presses the outer edge of the outer ring furnace head assembly onto the first clamping platform.

[0013] Optionally, a second clamping platform is provided in the middle of the clamping arm; the middle cover is installed on the clamping arm and can press the outer edge of the inner ring furnace head assembly onto the second clamping platform.

[0014] Optionally, the mounting base is provided with a support arm for mounting the ignition needle and thermocouple.

[0015] Optionally, the central cover is provided with an ignition groove, which is located above the support arm.

[0016] Optionally, an oil collection seat is provided in the middle of the fixing seat, and the oil collection seat is used to place the oil cup; the middle cover has an inverted cone-shaped structure that tapers inward from the bottom and is located above the oil collection seat.

[0017] 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;

[0018] 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.

[0019] 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.

[0020] The beneficial effects of this utility model are as follows: It innovatively adopts a combination structure of an inverted conical flame outlet wall and a partition plate. The spiral flame outlet groove's swirling combustion mode expands the flame coverage area, reduces localized high-temperature concentration, and achieves uniform temperature distribution in the combustion zone, preventing uneven heating of the cookware. Through the superimposed design of the inner and outer double-ring burner components, combined with the spiral upper / lower flame outlet groove structure, a multi-layered swirling combustion mode is formed. The centrifugal force generated by the spiral groove effectively promotes the three-dimensional turbulent mixing of gas and air, improving mixing efficiency compared to traditional direct injection structures. Through the embedded assembly of the top cap and the cooktop panel, the burner is flush with the mounting hole on the cooktop panel, and the sealing fit between the overflow water tray and the mounting hole improves cleaning efficiency.

[0021] 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

[0022] 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:

[0023] Figure 1 This is a schematic diagram of the structure of the high-power sheet metal burner head of this utility model;

[0024] Figure 2 for Figure 1 Another structural schematic diagram of the medium-power sheet metal burner head;

[0025] Figure 3 for Figure 1 Exploded view of the burner of a medium-power sheet metal furnace head;

[0026] Figure 4This is a rotated sectional view of the high-power sheet metal burner in the figure at the clamping arm and top connection hole;

[0027] Figure 5 for Figure 1 Exploded view of the inner ring burner head assembly;

[0028] Figure 6 for Figure 1 Exploded view of the inner and outer ring burner head assembly.

[0029] Explanation of key component symbols:

[0030] 10. Fixed base; 11. Outer ring positioning post; 12. Inner ring positioning post; 13. Clamping arm; 131. First clamping platform; 132. Second clamping platform; 133. Support arm; 14. Oil collecting base; 20. Outer ring burner head assembly; 21. Outer ring positioning hole; 30. Inner ring burner 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; 71. Injector tube; 80. Top pressure cap; 81. Top connecting hole; 90. Middle baffle cap; 91. Ignition protrusion. Detailed Implementation

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] Example

[0036] Reference Figures 1 to 6 The present invention proposes an embedded high-power sheet metal burner, comprising: a fixed base 10, an outer ring burner assembly 20, an inner ring burner assembly 30 and a top cover 80 which are detachably installed on the fixed base 10.

[0037] 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 71 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 wall 51 is spaced below the upper flame outlet wall 41. The upper flame outlet wall 41 has a plurality of spiral upper flame outlet grooves 42, and the lower flame outlet wall 51 has a plurality of spiral lower flame outlet grooves 52. The partition plate 60 is disposed between the upper flame outlet wall 41 and the lower flame outlet wall 51. The upper flame outlet grooves 42 and the lower flame outlet grooves 52 are both connected to the mixing chamber 70.

[0038] 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.

[0039] The top cover 80 is installed on the top of the fixed base 10 and presses the outer ring burner assembly 20 onto the fixed base 10; a top connection hole 81 is provided above the top cover 80; the top cover 80 has an annular cover plate structure, which can be embedded into the mounting hole of the stove panel and the water tray is installed through the top connection hole 81.

[0040] This invention innovatively employs a combination structure of an inverted conical flame outlet wall and a partition plate 60. The spiral flame outlet groove's swirling combustion mode expands the flame coverage area, reduces localized high-temperature concentration, and achieves uniform temperature distribution in the combustion zone, preventing uneven heating of the cookware. Through the superimposed design of the inner and outer double-ring burner components, combined with the spiral upper / lower flame outlet groove structure 52, a multi-layered swirling combustion mode is formed. The centrifugal force generated by the spiral groove effectively promotes the three-dimensional turbulent mixing of gas and air, improving mixing efficiency compared to traditional direct injection structures. Through the embedded assembly of the top cap 80 with the cooktop panel, the burner is flush with the mounting hole on the cooktop panel, and the sealing fit between the anti-overflow water tray and the mounting hole improves cleaning efficiency.

[0041] In this embodiment, the mounting base 10 is also equipped with a central cover 90. The central cover 90 is installed between the inner ring burner assembly 30 and the outer ring burner assembly 20, and presses the inner ring burner assembly 30 onto the mounting base 10. The central cover 90 has an annular cover structure and can cover the top of the inner ring burner assembly 30. The central cover 90 is located between the inner and outer ring burner assemblies 20, forming a physical isolation layer to prevent thermal interference between the inner and outer flames, avoid the inner ring assembly from being affected by the high temperature radiation of the outer ring, and extend the service life of the inner ring. By covering the inner ring burner assembly 30 with the annular cover structure, the appearance is improved and additional support is provided to enhance the overall structural stability and reduce the risk of component displacement caused by vibration.

[0042] In this embodiment, to ensure that the mounting base 10 can 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 mounting 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 mounting base 10 is provided with an inner ring positioning post 12 for connecting the inner ring positioning hole 31. The precise fit between the outer / inner ring positioning hole 31 and the positioning post of the mounting base 10 achieves coaxial assembly of the inner and outer ring assemblies.

[0043] 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; a top pressure cap 80 is installed on the clamping arms 13 and presses the outer edge of the outer ring burner assembly 20 onto the first clamping platform 131. The design of the clamping arms 13 and the first clamping platform 131, through the top pressure cap 80, applies uniform pressure to the outer ring burner assembly 20, ensuring that the outer ring assembly and the fixing base 10 fit tightly together, preventing structural loosening due to thermal expansion under high temperature conditions.

[0044] Furthermore, a second mounting platform 132 is provided in the middle of the mounting arm 13; a middle cover 90 is installed on the mounting arm 13, and the outer edge of the inner ring burner assembly 30 can be pressed against the second mounting platform 132. The second mounting platform 132 and the middle cover 90 work together to form a bidirectional fixation for the inner ring burner assembly 30, preventing the inner ring assembly from sinking due to gravity or vibration, and ensuring the independence and stability of the inner and outer ring gas passages.

[0045] Specifically, in order for the top cover 80 and the middle cover 90 to be connected to the clamping arm 13, the top cover 80 and the middle cover 90 are provided with downwardly extending connecting legs.

[0046] In this embodiment, the mounting base 10 is provided with a support arm 133 for mounting the ignition needle and thermocouple. The integrated design of the support arm 133 fixes the ignition needle and thermocouple to the mounting base 10, avoiding ignition offset caused by high-temperature deformation in traditional cantilever structures, thus improving the ignition success rate.

[0047] Furthermore, the central cover 90 is provided with an ignition groove 91, which is located above the support arm 133. The ignition groove 91 and the support arm 133 are vertically aligned to form a directional ignition channel, allowing the ignition spark to be precisely guided to the gas injection area.

[0048] In this embodiment, an oil collection seat 14 is provided in the middle of the fixed base 10, which is used to hold the oil cup; the middle baffle 90 has an inverted conical structure that tapers inward from the bottom and is located above the oil collection seat 14. The inverted conical middle baffle 90 guides the overflow liquid to the oil collection seat 14, and together with the oil cup, achieves an effective liquid collection rate, preventing oil stains from seeping into the burner. The funnel-shaped fit between the oil collection seat 14 and the baffle extends the cleaning cycle.

[0049] In this embodiment, the furnace lower shell 50 further includes an inner ring wall 53, and a lower flame outlet 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 inner edge of the partition plate 60 is provided with an inner locking portion 62, which can be locked onto the inner edge of the lower flame outlet wall 51. The lower edge locking portion 61 of the partition plate 60 is precisely engaged with the inner ring wall 53, and the embedded locking design of the inner locking portion 62 and the lower flame outlet wall 51 prevents the partition plate 60 from being displaced by airflow impact, ensuring the stability of the partition plate 60 in vertical installation and ensuring the airtightness of the mixing chamber 70.

[0050] 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 71, 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 71, 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 71. 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 71 into the flame outlet groove at the gas outlet end, making the gas flow in the flame outlet groove more stable.

[0051] 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 recessed high-power sheet metal burner, characterized in that, include: The fixed base (10), and the outer ring burner assembly (20), inner ring burner assembly (30) and top cover (80) detachably installed 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 (71); 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... 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); The top cover (80) is installed on the top of the fixed base (10) and presses the outer ring burner assembly (20) onto the fixed base (10); a top connection hole (81) is provided above the top cover (80); the top cover (80) has an annular cover plate structure, which can be embedded in the mounting hole of the stove panel and the water tray is installed through the top connection hole (81).

2. The embedded high-power sheet metal burner according to claim 1, characterized in that: The fixing seat (10) is also equipped with a middle cover (90); the middle cover (90) is installed between the inner ring burner assembly (30) and the outer ring burner assembly (20), and presses the inner ring burner assembly (30) onto the fixing seat (10); the middle cover (90) has an annular cover structure and can cover the top of the inner ring burner assembly (30).

3. The embedded high-power sheet metal burner according to claim 2, 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).

4. The embedded high-power sheet metal burner according to claim 3, 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 top cover (80) is installed on the clamping arms (13) and presses the outer edge of the outer ring furnace head assembly (20) onto the first clamping platform (131).

5. The embedded high-power sheet metal burner according to claim 4, characterized in that: The clamping arm (13) is provided with a second clamping platform (132) in the middle; the middle cover (90) is installed on the clamping arm (13) and presses the outer edge of the inner ring furnace head assembly (30) onto the second clamping platform (132).

6. The embedded high-power sheet metal burner according to claim 2, characterized in that: The mounting base (10) is provided with a support arm (133) for mounting the ignition needle and thermocouple.

7. The embedded high-power sheet metal burner according to claim 6, characterized in that: The middle cover (90) is provided with an ignition groove (91), which is located above the support arm (133).

8. The embedded high-power sheet metal burner according to claim 2, characterized in that: An oil collection seat (14) is provided in the middle of the fixed seat (10), and the oil collection seat (14) is used to place an oil cup; the middle cover (90) has an inverted cone-shaped structure that tapers inward from the bottom and is located above the oil collection seat (14).

9. The embedded 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), and the lower edge locking part (61) can be locked onto the wall surface of the inner ring wall (53); 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).

10. The embedded 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 (71), and the flame divider groove (63) is provided with a number of spaced flame divider holes (64).

Images