Fire outlet structure of combustor
By introducing premixed air into the burner's flame outlet structure, the problems of easy flameout and oil clogging in gas stoves have been solved, achieving flame stability and anti-clogging effect, thus improving the burner's performance and user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG SHENZHOU GAS APPLIANCE
- Filing Date
- 2025-01-24
- Publication Date
- 2026-05-19
AI Technical Summary
Existing gas stoves are prone to flameout due to spillage during use, and the accumulation of grease over time can clog the burner holes, affecting burner performance.
Design a burner ignition structure including an outer ring fire chamber, an inner ring fire chamber and an intermediate ignition distributor. Premixed air is introduced through the outer and inner vents to provide combustion-supporting flow, and flows on the surfaces of the outer and inner ring burner caps to prevent blockage.
It improves the stability of the flame, reduces the risk of flameout, prevents the flame outlet from becoming clogged, and enhances the burner's performance and user experience.
Smart Images
Figure CN224261710U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas stove technology, and in particular to a burner ignition structure. Background Technology
[0002] Existing gas stoves primarily ignite gas by using an ignition needle powered by electricity, and the combustion of the gas heats the food. However, during the cooking process, spillage is inevitable and may extinguish the flame, potentially causing an accident.
[0003] Furthermore, with prolonged use, the grease buildup on the burner caps will increase, not only clogging the flame holes but also causing the burner to malfunction or fail to ignite, thus affecting the use of the gas stove. Utility Model Content
[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a burner ignition structure.
[0005] The burner ignition structure according to an embodiment of this utility model includes: a burner body, comprising an outer ring fire chamber and an inner ring fire chamber, both the upper side of the outer ring fire chamber and the upper side of the inner ring fire chamber having openings, a cavity between the outer ring fire chamber and the inner ring fire chamber serving as an intermediate space, an external ventilation port being provided on the side of the outer ring fire chamber, an internal ventilation port being provided on the side of the inner ring fire chamber, and a central mounting hole being provided in the middle of the inner ring fire chamber; and an outer ring burner cap, located on the outer ring fire chamber. On the upper side of the cavity, the outer ring burner cap is provided with an outer ring flame outlet; the inner ring burner cap is located on the upper side of the inner ring burner cavity, and the inner ring burner cap is provided with an inner ring flame outlet; the intermediate burner is located on the intermediate mounting hole, and the upper side of the intermediate burner is provided with a intermediate flame outlet, the lower side of the intermediate burner is connected to a gas source, and the lower side wall of the intermediate burner is provided with an intermediate mixing hole, so that the airflow can pass through the outer vent, the intermediate space, the inner vent and the intermediate mixing hole in sequence to enter the intermediate burner as premixed air.
[0006] According to some embodiments of this utility model, the outer ring fire chamber includes an upper outer ring fire outlet chamber and a lower outer ring fire distribution chamber. A plurality of transition chambers are connected between the lower side of the outer ring fire outlet chamber and the upper side of the outer ring fire distribution chamber. An external ventilation opening is provided between the lower side of the outer ring fire outlet chamber, the upper side of the outer ring fire distribution chamber and the outer wall of the transition chamber. The inner ring fire chamber includes an upper inner ring fire outlet chamber and a lower inner ring fire distribution chamber. An internal ventilation opening is provided between the lower side of the inner ring fire outlet chamber and the outer wall of the inner ring fire distribution chamber.
[0007] According to some embodiments of the present invention, the burner body includes a first component and a second component, which are connected by screws; the first component includes a base plate, the lower side of the transition chamber and the lower side of the inner annular flame distribution chamber are connected to the base plate, the lower side of the outer annular flame outlet chamber is connected to the transition chamber, and the lower side of the inner annular flame outlet chamber is connected to the inner annular flame distribution chamber; the second component includes a bottom bracket, the outer annular flame distribution chamber is connected to the outside of the bottom bracket, and the base plate covers the outer annular flame distribution chamber.
[0008] According to some embodiments of the present invention, an outer ring gas external interface is provided on the lower side of the outer ring fire distribution chamber, and an outer ring gas ejector tube is connected to the outer ring gas external interface. An inner ring gas external interface is provided on the lower side of the inner ring fire distribution chamber, and an inner ring gas ejector tube is connected to the inner ring gas external interface.
[0009] According to some embodiments of this utility model, a gas nozzle is connected to the lower side of the intermediate flame distributor, and the gas nozzle is connected to an external gas source.
[0010] According to some embodiments of the present invention, the outer ring flame outlet is located on the outer annular sidewall of the outer ring flame cap, the upper side of the outer ring flame cap has an annular inclined surface, the annular inclined surface is inclined from the upper side on the outside to the lower side on the inside, and a combustion straight hole is provided on the annular inclined surface.
[0011] According to some embodiments of the present invention, a side partition is provided on the inner annular sidewall of the outer annular flame cover, and the side partition covers the position of the inner annular sidewall of the outer annular flame outlet chamber.
[0012] According to some embodiments of the present invention, a limiting step is provided on the inner annular sidewall of the inner ring flame cover, and a limiting protrusion is provided on the outer sidewall of the intermediate flame distributor, with the limiting step locking the limiting protrusion.
[0013] According to some embodiments of the present invention, the upper side of the intermediate flame distributor is provided with an intermediate flame outlet, the intermediate flame outlet extends upward from the intermediate mounting hole and the inner ring flame cover, and the intermediate flame outlet is located on the outer wall of the intermediate flame outlet.
[0014] According to some embodiments of the present invention, an annular shielding cap is provided on the upper side of the inner ring flame cover, and an intermediate shielding cap is provided on the upper side of the intermediate flame distributor.
[0015] According to the burner flame outlet structure of this utility model embodiment, it has at least the following technical effects: the outer ring burner cap, the inner ring burner cap, and the intermediate burner outlet are used for heating. The intermediate burner outlet is located close to the center, making it difficult for the flame in the intermediate flame outlet to be extinguished. The air introduced from the outside enters the intermediate space through the outer and inner vents, which can serve as the premixed air for the intermediate burner outlet and provide a sufficiently strong combustion-supporting flow for the outer and inner ring burner caps. Moreover, the flow of this combustion-supporting flow on the surface of the outer and inner ring burner caps can also play a role in preventing blockage.
[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0017] Additional aspects and advantages of this invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0018] Figure 1 This is a perspective view of the burner's flame outlet structure of this utility model;
[0019] Figure 2 This is an exploded view of the burner's ignition structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the inner ring gas intake of the burner's flame outlet structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the outer ring gas intake of the burner's flame outlet structure of this utility model;
[0022] Figure 5 This is a perspective view of the first component in this utility model;
[0023] Figure 6 This is a perspective view of the second component in this utility model.
[0024] Figure label:
[0025] Burner body 100, first component 110, base plate 111, igniter mounting hole 1111, outer annular flame outlet chamber 112, transition chamber 113, inner annular flame distribution chamber 114, inner annular flame outlet chamber 115, intermediate space 116, external vent 117, internal vent 118, intermediate mounting hole 119, second component 120, bottom bracket 121, outer annular flame distribution chamber 122, outer annular gas external interface 123, inner annular gas external interface 124, outer annular flame chamber 130, inner annular flame chamber 140; outer ring burner cap 200, outer ring flame outlet 210, annular inclined surface 220, combustion straight hole 221, side partition 230; inner ring burner cap 300, inner ring flame outlet 310, limiting step 320, annular shielding cap 330; intermediate flame distributor 400, intermediate flame outlet 410, intermediate flame outlet 411, intermediate shielding cap 412, limiting protrusion 420, intermediate mixing hole 430; outer ring gas injector 510, inner ring gas injector 520, gas nozzle 530. Detailed Implementation
[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0027] 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.
[0028] In the description of this utility model, "multiple" means two or more, and "greater than," "less than," "exceeding," etc., are understood to exclude 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.
[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and 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.
[0030] The following is for reference. Figure 1 and Figure 2 The burner ignition structure according to an embodiment of the present invention is described.
[0031] like Figure 1 and Figure 2 As shown, the burner ignition structure according to an embodiment of the present invention includes a burner body 100, an outer ring flame cap 200, an inner ring flame cap 300, and an intermediate flame distributor 400.
[0032] Reference Figure 4 The burner body 100 includes an outer ring fire chamber 130 and an inner ring fire chamber 140. Both the upper sides of the outer ring fire chamber 130 and the inner ring fire chamber 140 have openings. The cavity between the outer ring fire chamber 130 and the inner ring fire chamber 140 serves as an intermediate space 116. An external vent 117 is provided on the side of the outer ring fire chamber 130. The inner ring fire chamber 140 is connected to a gas and premixed air source. An internal vent 118 is provided on the side of the inner ring fire chamber 140. An intermediate mounting point is located in the middle of the inner ring fire chamber 140. Hole 119; Outer ring burner cap 200 is located above the outer ring burner chamber 130, and the outer ring burner cap 200 is provided with an outer ring flame outlet 210; Inner ring burner cap 300 is located above the inner ring burner chamber 140, and the inner ring burner cap 300 is provided with an inner ring flame outlet 310; Intermediate burner distributor 400 is located on the intermediate mounting hole 119, the lower side of the intermediate burner distributor 400 is connected to a gas source, the upper side of the intermediate burner distributor 400 is provided with an intermediate flame outlet 411, and the lower side wall of the intermediate burner distributor 400 is provided with an intermediate mixing hole 430. The airflow can sequentially pass through the outer vent 117, the intermediate space 116, the inner vent 118 and the intermediate mixing hole 430 to enter the intermediate burner distributor 400 as premixed air.
[0033] For example, such as Figure 1 and Figure 2 As shown, the burner body 100 includes an outer ring flame chamber 130 and an inner ring flame chamber 140. Both the upper sides of the outer ring flame chamber 130 and the inner ring flame chamber 140 have openings. The outer ring flame chamber 130 serves as a channel for the outer ring gas, connected to an external gas source, and the inner ring flame chamber 140 also serves as a channel for the inner ring gas, connected to an external gas source. The cavity between the outer ring flame chamber 130 and the inner ring flame chamber 140 serves as an intermediate space 116. An external vent 117 is provided on the side of the outer ring flame chamber 130, and an internal vent 118 is provided on the side of the inner ring flame chamber 140. A central mounting hole 119 is located in the middle of the inner ring flame chamber 140. An outer ring burner cap 200 is located above the outer ring flame chamber 130 and has an outer ring flame outlet 210. An inner ring burner cap 300 is located above the inner ring flame chamber 140 and has an inner ring flame outlet 310. The intermediate burner 400 is located on the intermediate mounting hole 119. The intermediate burner 400 has an intermediate flame outlet 411 on its upper side and an intermediate mixing port 430 on its lower side wall. The intermediate burner 400 is also connected to an external gas source.
[0034] In actual operation, the gas corresponding to the outer ring flame is mixed with premixed air and injected into the outer ring flame chamber 130, and then the outer ring flame chamber 130 supplies gas to the outer ring flame cap 200 for flame emission. Similarly, the gas corresponding to the inner ring flame is mixed with premixed air and injected into the inner ring flame chamber 140, and then the inner ring flame chamber 140 supplies gas to the inner ring flame cap 300 for flame emission.
[0035] The intermediate burner 400 is supplied with gas from an external gas source. Because the intermediate burner 400 is located close to the center of the burner, the flame at the central flame outlet 411 is less likely to be extinguished. Furthermore, since the burner can draw air from the outside through the external vent 117 and internal vent 118 into the central space 116, this air can serve as premixed air for the intermediate burner 400 and provide a sufficiently strong combustion-supporting flow to the outer and inner ring burners 200 and 300. The flow of this combustion-supporting flow on the surfaces of the outer and inner ring burners 200 also helps prevent clogging.
[0036] In some embodiments of this utility model, the outer ring fire chamber 130 includes an upper outer ring fire outlet chamber 112 and a lower outer ring fire distribution chamber 122. A plurality of transition chambers 113 are connected between the lower side of the outer ring fire outlet chamber 112 and the upper side of the outer ring fire distribution chamber 122. An external ventilation opening 117 is provided between the lower side of the outer ring fire outlet chamber 112, the upper side of the outer ring fire distribution chamber 122 and the outer wall of the transition chamber 113. The inner ring fire chamber 140 includes an upper inner ring fire outlet chamber 115 and a lower inner ring fire distribution chamber 114. An internal ventilation opening 118 is provided between the lower side of the inner ring fire outlet chamber 115 and the outer wall of the inner ring fire distribution chamber 114.
[0037] In actual operation, the gas corresponding to the outer ring passes through the outer ring flame distribution chamber 122, the transition chamber 113 and the outer ring flame outlet chamber 112 in sequence. It is first distributed in the outer ring flame distribution chamber 122 and then burned in the outer ring flame outlet chamber 112, and the flame is emitted through the outer ring flame outlet hole 210. Similarly, the gas corresponding to the inner ring passes through the inner ring flame distribution chamber 114 and the inner ring flame outlet chamber 115 in sequence, and then burned in the inner ring flame outlet chamber 115, and the flame is emitted through the inner ring flame outlet hole 310.
[0038] The combustion gas enters the intermediate burner 400 from bottom to top. Outside air passes through the external vent 117, the internal vent 118, and the intermediate mixing port 430 before entering the intermediate burner 400 and mixing with the combustion gas. The combustion gas in the intermediate burner 400 burns and produces a flame through the intermediate flame outlet 411.
[0039] In some embodiments of this utility model, reference is made to Figure 5 , Figure 6The burner body 100 includes a first component 110 and a second component 120, which are connected by screws. The first component 110 and the second component 120 are detachable, simplifying manufacturing and facilitating cleaning. The first component 110 includes a base plate 111, with the lower side of the transition chamber 113 and the lower side of the inner annular flame distribution chamber 114 connected to the base plate 111. The lower side of the outer annular flame outlet chamber 112 is connected to the transition chamber 113, and the lower side of the inner annular flame outlet chamber 115 is connected to the inner annular flame distribution chamber 114. The base plate 111 serves as the main support structure for the first component 110. The second component 120 includes a bottom bracket 121, with the outer annular flame distribution chamber 122 connected to the outside of the bottom bracket 121. The base plate 111 covers the outer annular flame distribution chamber 122. The bottom bracket 121 ensures the structural strength of the second component 120.
[0040] In some embodiments of this utility model, reference is made to Figure 4 The base plate 111 is provided with an igniter mounting hole 1111, which is used to install an igniter. The igniter is responsible for igniting the gas passing through it.
[0041] In some embodiments of this utility model, reference is made to Figure 1 An outer ring gas external interface 123 is provided on the lower side of the outer ring ignition chamber 122, and an outer ring gas ejector tube 510 is connected to the outer ring gas external interface 123. An inner ring gas external interface 124 is provided on the lower side of the inner ring ignition chamber 114, and an inner ring gas ejector tube 520 is connected to the inner ring gas external interface 124. In this way, the outer ring gas can enter the outer ring ignition chamber 112 through the outer ring gas ejector tube 510, and the inner ring gas can enter the inner ring ignition chamber 115 through the inner ring gas ejector tube 520.
[0042] In some embodiments of this utility model, air is also introduced into the outer ring gas ejector pipe 510 and the inner ring gas ejector pipe 520 as premixed air for the outer and inner ring gas.
[0043] In some embodiments of this utility model, reference is made to Figure 3 A gas nozzle 530 is connected to the lower side of the intermediate burner 400, and the gas nozzle 530 is connected to a gas source. After the gas nozzle 530 sprays gas, the outside air passes through the external vent 117 and the internal vent 118 and premixes with the gas sprayed by the gas nozzle, and then burns in the intermediate burner 400.
[0044] In some embodiments of this utility model, the central axes of the outer ring fire chamber 130, the inner ring fire chamber 140 and the middle mounting hole 119 are located on the same main axis, which is a vertical axis extending in the up and down direction, to ensure that the outer ring fire cover 200, the inner ring fire cover 300 and the middle fire distributor 400 emit flames evenly enough, so that the pot is heated evenly.
[0045] In some embodiments of this utility model, the outer ring flame outlet 210 is located on the outer annular sidewall of the outer ring flame cap 200. The upper side of the outer ring flame cap 200 has an annular inclined surface 220, which slopes from the upper side on the outside to the lower side on the inside. A combustion straight hole 221 is provided on the annular inclined surface 220. The outer ring flame outlet 210 emits an outward ring flame towards the outer ring flame cap 200, and the combustion straight hole 221 emits an inward straight flame towards the outer ring flame cap 200, further improving the uniformity of heating of the cookware.
[0046] In some embodiments of this utility model, a side partition 230 is provided on the inner annular sidewall of the outer annular flame cover 200, and the side partition 230 covers the inner annular sidewall of the outer annular flame outlet chamber 112. This effectively separates the inner annular sidewall of the outer annular flame outlet chamber 112 from the position of the inner annular flame cover 300. This not only positions the outer annular flame cover 200 within the outer annular flame outlet chamber 112, but also reduces the direct heating of the outer annular flame outlet chamber 112 by the inner annular flame cover 300, thus preventing premature combustion of the gas within the outer annular flame outlet chamber 112.
[0047] In some embodiments of this utility model, a limiting step 320 is provided on the inner annular sidewall of the inner ring flame cover 300, and a limiting protrusion 420 is provided on the outer sidewall of the intermediate flame distributor 400. The limiting step 320 locks the limiting protrusion 420 to ensure that the intermediate flame distributor 400 is securely installed in the intermediate mounting hole 119.
[0048] In some embodiments of this utility model, a central flame outlet 410 is provided on the upper side of the central flame distributor 400. The central flame outlet 410 extends upward from the central mounting hole 119 and the inner ring flame cap 300, and the central flame outlet hole 411 is located on the outer wall of the central flame outlet 410. The design of the central flame outlet 410 extending out of the inner ring flame cap 300 and the central flame outlet hole 411 being located on the outer wall of the central flame outlet 410 can further reduce the chance of soup extinguishing the flame of the inner ring flame cap 300.
[0049] In some embodiments of this utility model, an annular shielding cap 330 is provided on the upper side of the inner ring flame cap 300, and a middle shielding cap 412 is provided on the upper side of the middle flame distributor 400, which are used to block the juice poured down from above, and further prevent the juice from directly extinguishing the flames of the inner ring flame cap 300 and the middle flame distributor 400.
[0050] A gas stove according to a second aspect of the present invention includes a burner ignition structure according to the first aspect of the present invention described above.
[0051] According to the embodiments of the present invention, the gas stove adopts the above-mentioned burner flame structure, which reduces the thickness of the gas stove, facilitates the miniaturization of the gas stove design, and can also improve the vibration and noise of the gas stove, thereby enhancing the user experience.
[0052] Other components and operations of the gas stove according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.
[0053] The following is for reference. Figure 1 and Figure 2 The burner ignition structure according to an embodiment of the present invention is described in detail with reference to a specific example. It is to be understood that the following description is merely illustrative and not intended to limit the scope of the invention.
[0054] like Figure 1 and Figure 2 As shown, the burner ignition structure of this utility model embodiment includes a burner body 100, an outer ring flame cap 200, an inner ring flame cap 300, and an intermediate flame distributor 400.
[0055] The burner body 100 includes a first component 110 and a second component 120. The first component 110 includes a base plate 111, an igniter mounting hole 1111, an outer annular flame outlet chamber 112, a transition chamber 113, an inner annular flame distribution chamber 114, an inner annular flame outlet chamber 115, an intermediate space 116, an external vent 117, an internal vent 118, and an intermediate mounting hole 119. The second component 120 includes a base bracket 121, an outer annular flame distribution chamber 122, an outer annular gas external interface 123, and an inner annular gas external interface 124.
[0056] The outer ring burner cap 200 is located on the outer ring flame outlet chamber 112. The outer ring burner cap 200 includes an outer ring flame outlet hole 210, an annular inclined surface 220, a combustion straight hole 221, and a side partition 230. The inner ring burner cap 300 is located on the inner ring flame outlet chamber 115. The inner ring burner cap 300 includes an inner ring flame outlet hole 310, a limiting step 320, and an annular shielding cap 330. The intermediate flame distributor 400 is located on the intermediate mounting hole 119. The intermediate flame distributor 400 includes an intermediate flame outlet part 410, an intermediate flame outlet hole 411, an intermediate shielding cap 412, a limiting protrusion 420, and an intermediate mixing hole 430.
[0057] The burner body 100 is connected to an outer ring gas ejector pipe 510 and an inner ring gas ejector pipe 520. A gas nozzle is installed on the lower side of the burner body 100.
[0058] According to the burner ignition structure of this utility model embodiment, by setting it up in this way, at least the following effects can be achieved, and the gas corresponding to the intermediate ignition distributor 400 enters the intermediate ignition distributor 400 from bottom to top. Outside air passes sequentially through the external vent 117, internal vent 118, and intermediate mixing hole 430 before entering the intermediate burner 400 to mix with the combustion gas. The intermediate burner 400 is positioned close to the center, making it less likely for the flame at the intermediate flame outlet 411 to be extinguished. The outside air enters the intermediate space 116 through the external vent 117 and internal vent 118, serving as premixed air for the intermediate burner 400 and providing a sufficiently strong combustion-supporting flow to the outer and inner ring burners 200 and 300. This combustion-supporting flow can also prevent clogging by flowing over the surfaces of the outer and inner ring burners 200 and 300. The intermediate burner 400 can be flexibly switched on and off as needed, without necessarily requiring it to work in conjunction with the outer and inner ring burners. The new design can be modified and manufactured using the commonly used two-ring burner, saving manufacturing costs.
[0059] In the description of this specification, references to terms such as "some embodiments" or "as one might imagine" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above 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 one or more embodiments or examples.
[0060] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A burner flame structure, characterized by, include: The burner body (100) includes an outer ring fire chamber (130) and an inner ring fire chamber (140). The upper side of the outer ring fire chamber (130) and the upper side of the inner ring fire chamber (140) are both open. The cavity between the outer ring fire chamber (130) and the inner ring fire chamber (140) serves as an intermediate space (116). An external ventilation port (117) is provided on the side of the outer ring fire chamber (130). The inner ring fire chamber (140) is connected to a gas and premixed air source. An internal ventilation port (118) is provided on the side of the inner ring fire chamber (140). A central mounting hole (119) is provided in the middle of the inner ring fire chamber (140). The outer ring flame cap (200) is located on the upper side of the outer ring flame chamber (130), and the outer ring flame cap (200) is provided with an outer ring flame outlet (210). The inner ring flame cap (300) is located on the upper side of the inner ring flame chamber (140), and the inner ring flame cap (300) is provided with an inner ring flame outlet (310). An intermediate flame distributor (400) is located on the intermediate mounting hole (119). An intermediate flame outlet (411) is provided on the upper side of the intermediate flame distributor (400). A gas source is connected to the lower side of the intermediate flame distributor (400). An intermediate mixing hole (430) is provided on the side wall of the lower side of the intermediate flame distributor (400). The airflow can pass through the outer vent (117), the intermediate space (116), the inner vent (118) and the intermediate mixing hole (430) in sequence to enter the intermediate flame distributor (400) as premixed air.
2. The burner flame structure of claim 1, wherein The outer ring fire chamber (130) includes an upper outer ring fire outlet chamber (112) and a lower outer ring fire distribution chamber (122). A plurality of transition chambers (113) are connected between the lower side of the outer ring fire outlet chamber (112) and the upper side of the outer ring fire distribution chamber (122). An external ventilation opening (117) is provided between the lower side of the outer ring fire outlet chamber (112), the upper side of the outer ring fire distribution chamber (122), and the outer wall of the transition chamber (113). The inner ring fire chamber (140) includes an upper inner ring fire outlet chamber (115) and a lower inner ring fire distribution chamber (114). An internal ventilation opening (118) is provided between the lower side of the inner ring fire outlet chamber (115) and the outer wall of the inner ring fire distribution chamber (114).
3. The burner flame structure of claim 2, wherein, The burner body (100) includes a first component (110) and a second component (120), which are connected by screws. The first component (110) includes a base plate (111), the lower side of the transition chamber (113) and the lower side of the inner ring fire distribution chamber (114) are connected to the base plate (111), the lower side of the outer ring fire outlet chamber (112) is connected to the transition chamber (113), and the lower side of the inner ring fire outlet chamber (115) is connected to the inner ring fire distribution chamber (114); The second component (120) includes a bottom bracket (121), the outer annular fire distribution chamber (122) is connected to the outside of the bottom bracket (121), and the bottom plate (111) covers the outer annular fire distribution chamber (122).
4. The burner flame structure of claim 2, wherein The outer ring fire chamber (122) is provided with an outer ring gas external interface (123) on the lower side, and the outer ring gas external interface (123) is connected to an outer ring gas ejector tube (510). The inner ring fire chamber (114) is provided with an inner ring gas external interface (124) on the lower side, and the inner ring gas external interface (124) is connected to an inner ring gas ejector tube (520).
5. The burner flame structure of claim 1, wherein The lower side of the intermediate flame distributor (400) is connected to a gas nozzle (530), and the gas nozzle (530) is connected to an external gas source.
6. The burner flame structure of claim 1, wherein The outer ring flame outlet (210) is located on the outer annular sidewall of the outer ring flame cap (200). The outer ring flame cap (200) has an annular inclined surface (220) on its upper side. The annular inclined surface (220) is inclined from the upper side on the outside to the lower side on the inside. A combustion straight hole (221) is provided on the annular inclined surface (220).
7. The burner flame structure of claim 2, wherein A side partition (230) is provided on the inner annular sidewall of the outer annular flame cover (200), and the side partition (230) covers the inner annular sidewall of the outer annular flame outlet chamber (112).
8. The burner flame structure of claim 1, wherein A limiting step (320) is provided on the inner annular sidewall of the inner ring flame cap (300), and a limiting protrusion (420) is provided on the outer sidewall of the intermediate flame distributor (400). The limiting step (320) locks the limiting protrusion (420).
9. The burner flame structure of claim 1 or 8, wherein, The intermediate flame distributor (400) has an intermediate flame outlet (410) on its upper side. The intermediate flame outlet (410) extends upward from the intermediate mounting hole (119) and the inner ring flame cap (300). The intermediate flame outlet (411) is located on the outer wall of the intermediate flame outlet (410).
10. The burner flame structure of claim 1, wherein The inner ring flame cap (300) is provided with an annular shielding cap (330) on the upper side, and the intermediate flame distributor (400) is provided with an intermediate shielding cap (412) on the upper side.