Centripetal pole flame burner and stove

Abstract

The invention discloses a centripetal pole flame burner and a stove. The centripetal pole flame burner comprises a base; the pot rack is detachably connected to the base; an outer ring fire cover; the central fire cover and the outer ring fire cover are both assembled on the base; the outer ring fire cover is provided with a centripetal inclined face, at least one circle of outer ring fire outlet holes are formed in the centripetal inclined face, and the outer ring fire outlet holes are distributed centripetally. The pot rack comprises a pot supporting part used for supporting a pot, and when the pot is placed on the pot rack, the distances between the bottom of the pot and the outlet ends of the outer ring fire outlet holes are equal. Air can be guaranteed to enter the space among the pot rack, the outer ring fire cover and the center fire cover, combustion is sufficient, heat efficiency is improved, heat energy loss can be reduced, energy consumption is reduced, and meanwhile uniform heating of a pot is facilitated.

Description

Technical Field

[0001] This invention relates to the field of burner technology, and more particularly to a centripetal flame burner and stove. Background Technology

[0002] Burners are essential kitchen appliances that heat cookware to complete cooking.

[0003] In existing technologies, the outer ring flame outlets on the outer ring burner cap are usually set vertically or simply at an angle, resulting in an unsatisfactory angle between the flame direction and the bottom of the pot. This makes it difficult to heat the bottom of the pot evenly. After the pot is placed, the height of its bottom from each outer ring flame outlet is inconsistent, causing local overheating or underheating, resulting in low thermal efficiency and high energy consumption.

[0004] The lack of effective protective structure for the outer ring flame outlet holes on the outer ring burner cap allows liquids and debris to easily enter the interior of the outer ring flame outlet holes during overflow or cleaning, causing blockage, affecting normal combustion, and shortening service life. At the same time, due to the unreasonable design of the structural parameters of the outer ring flame outlet holes, the mixed gas flow rate is easily too low, which can cause backfire and pose certain safety hazards.

[0005] Meanwhile, the combustion gas and air in existing burners are not mixed evenly. Since the air supply depends on natural injection, the mixing effect is greatly affected by factors such as air pressure, which can easily lead to incomplete combustion and the production of harmful gases such as carbon monoxide. In addition, the heat load adjustment range is narrow and the efficiency improvement is limited.

[0006] Existing stoves cannot accurately match the gas-to-air supply ratio in real time according to the combustion state. This results in excessive air carrying away heat or excessive gas causing incomplete combustion at different fire levels, making it impossible to achieve low emissions and low energy consumption while ensuring thermal efficiency. Summary of the Invention

[0007] The purpose of this invention is to provide a concentric flame burner and stove solution to address the shortcomings of existing technologies. This solution not only ensures that air enters between the pot rack, the outer ring burner and the central burner to ensure complete combustion and increase thermal efficiency, but also reduces heat loss and energy consumption, while promoting even heating of the pot.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] Centripetal extreme flame burner, including

[0010] Base;

[0011] Pot rack, which can be detachably connected to the base;

[0012] Outer ring fire cap;

[0013] Both the center flame cap and the outer ring flame cap are mounted on the base.

[0014] Its features are:

[0015] The outer ring flame cap has a centripetal inclined surface, and at least one ring of outer ring flame outlet holes are provided on the centripetal inclined surface, with the outer ring flame outlet holes distributed centripetally.

[0016] The pot rack includes a pot support for supporting the pot. When the pot is placed on the pot rack, the distance between the bottom of the pot and the outlet end of each of the outer ring flame holes is equal.

[0017] The above structural design not only ensures that air enters between the pot rack, the outer ring burner, and the central burner, allowing for complete combustion and increased thermal efficiency, but also reduces heat loss, lowers energy consumption, and promotes even heating of the cookware.

[0018] Furthermore, the spacing is L, 15mm≤L≤25mm, preferably L=20mm, which is beneficial for even heating of the bottom of the cookware.

[0019] Furthermore, a truncated cone is provided at the outlet end of each outer ring flame hole on the centripetal inclined surface. The truncated cone protrudes from the upper surface of the centripetal inclined surface. The design of the truncated cone can play a role in waterproofing and preventing blockage, extending the service life of the burner, and increasing heat dissipation efficiency.

[0020] Furthermore, the sum of the length of the outer ring flare hole and the protruding height of the truncated cone is the total length a, the inner diameter of the outer ring flare hole is b, and the length-to-diameter ratio of the total length a to the inner diameter b of the outer ring flare hole a:b is (2.3~2.4):3. This structural design can greatly reduce the possibility of tempering.

[0021] Furthermore, the centripetal inclined surface is provided with air curtain holes and air curtain grooves. The air curtain grooves are recessed inward along the centripetal inclined surface, and the air curtain holes are connected to the air curtain grooves. Through the design of the air curtain holes and air curtain grooves, when the pot is moved and burned dry, the mixed gas that cannot be ignited at the outermost ring of the outer ring flame outlet is blown towards the center, so that it can be fully burned, which can effectively prevent gas leakage and improve safety.

[0022] Furthermore, it also includes a center flame ejector, which is connected to the base plate of the base and is used to supply gas to the center flame cap. The tube wall of the center flame ejector is provided with at least one air inlet hole, through which air is introduced into the center flame ejector to improve the mixing efficiency of gas and air.

[0023] Furthermore, the central ejector is equipped with a Venturi ejector hole, which is connected to the air inlet.

[0024] Furthermore, the top surface of the base plate is provided with at least one air inlet slot for replenishing air.

[0025] Furthermore, it also includes an air supply device, an air guide hood, and a premixing pipe. The base is equipped with an outer ring flame injector that connects to the outer ring flame chamber. The air guide hood is connected to the outer ring flame injector through the premixing pipe. The air supply device is connected to the air guide hood. The air supply device delivers air to the premixing pipe. The air supply device can directly deliver external air to the premixing pipe and fully premix it with the gas injected into the outer ring flame nozzle, thereby improving combustion efficiency.

[0026] Furthermore, the air guide shroud is provided with a mixing chamber, and a first guide surface and a second guide surface are inclined along the inner wall of the air guide shroud. An outer ring flame nozzle connected to the mixing chamber is mounted on the air guide shroud. After the air supply device guides the air through the first guide surface and the second guide surface, it forms a coaxial and unidirectional mixed airflow with the gas injected from the outer ring flame nozzle in the mixing chamber and the premixing pipe.

[0027] A stove, characterized in that it includes a centripetal flame burner as described above.

[0028] Furthermore, it also includes a flow controller and feedback device, a solenoid valve, a main air intake pipe, a center flame air intake pipe, an outer ring flame air intake pipe, and a stove body. The flow controller and feedback device, the main air intake pipe, the center flame air intake pipe, and the outer ring flame air intake pipe are all located on the stove body. The main air intake pipe is connected to the flow controller and feedback device. The flow controller and feedback device are connected to the center flame ejector and the outer ring flame nozzle respectively through the center flame air intake pipe and the outer ring flame air intake pipe. The solenoid valve is located on the outer ring flame air intake pipe.

[0029] Furthermore, the flow control and feedback system employs a combination of proportional valves or plug valves and encoders.

[0030] The present invention, by adopting the above-described technical solution, has the following beneficial effects:

[0031] 1. This invention not only ensures that air enters between the pot rack, the outer ring burner and the central burner, so as to make the combustion complete and increase the thermal efficiency, but also reduces heat loss and energy consumption, while also promoting even heating of the pot.

[0032] 2. The design of the truncated cone in this invention can play a role in waterproofing and preventing clogging, thus extending the service life of the burner and increasing heat dissipation efficiency.

[0033] 3. The sum of the length of the outer ring flaming hole and the protruding height of the truncated cone is the total length a and the length-to-diameter ratio a:b of the inner diameter b of the outer ring flaming hole is (2.3~2.4):3. This structural design can greatly reduce the possibility of tempering.

[0034] 4. The air supply device of the present invention guides the air through the first guide surface and the second guide surface, and then forms a coaxial and unidirectional mixed airflow with the gas injected from the outer ring flame nozzle in the mixing chamber and the premixing pipe.

[0035] 5. This invention achieves air and gas mixing in a set ratio by matching the flow control, feedback device and air supply device speed, thereby achieving the required combustion efficiency while reducing energy consumption and improving safety during use. Attached Figure Description

[0036] The present invention will be further described below with reference to the accompanying drawings:

[0037] Figure 1 This is a rendering of the centripetal extreme flame burner and the burner in the stove of the present invention;

[0038] Figure 2 for Figure 1 Top view;

[0039] Figure 3 for Figure 2 Schematic diagram of the structure in the AA direction;

[0040] Figure 4 This is a schematic diagram of the outer ring flame cap in this invention;

[0041] Figure 5 for Figure 4 The main view;

[0042] Figure 6 for Figure 5 Schematic diagram of the structure in the middle BB direction;

[0043] Figure 7 for Figure 6 A magnified view of a section at point I;

[0044] Figure 8 This is a schematic diagram of the base structure in this invention;

[0045] Figure 9 for Figure 3 Enlarged view of a section at point II;

[0046] Figure 10 This is a schematic diagram of the structure of the central flame cap seat in this invention;

[0047] Figure 11 This is a schematic diagram of the pot frame structure in this invention;

[0048] Figure 12 for Figure 11 Schematic diagram of the structure in the C-direction;

[0049] Figure 13 This is a schematic diagram of the connection between the support frame and the burner in this invention;

[0050] Figure 14 This is a schematic diagram showing the connection between the burner and the air supply device in this invention;

[0051] Figure 15 This is a schematic diagram of the air guide shroud in this invention;

[0052] Figure 16 This is a schematic diagram showing the connection between the burner, air supply device, main valve and solenoid valve in this invention;

[0053] Figure 17 This is a schematic diagram of the connection between the burner and the stove in this invention.

[0054] Wherein: 1-pot rack; 101-pot support; 102-air input channel; 103-energy-concentrating panel; 104-first mounting ring; 105-first mounting hole; 106-outer ring retaining ring; 107-arc transition surface; 108-reinforcing rib; 109-avoiding block;

[0055] 2-Outer ring flame cap; 201-Centerial inclined surface; 202-First locking ring; 203-Second locking ring; 204-Circular arc transition surface; 205-Outer ring flame outlet; 206-Frustum cone; 207-Air curtain hole; 208-Air curtain groove;

[0056] 3-Base; 301-Outer ring ignition chamber; 302-Base plate; 303-Second mounting hole; 304-Outer ring ignition injector; 305-Second mounting ring; 306-Third mounting hole; 307-Outer ring ignition cap groove; 308-Air inlet groove;

[0057] 4-Center burner cap; 5-Ignition needle; 6-Thermocouple;

[0058] 7-Support frame; 701-Support panel; 702-Third mounting ring; 703-Fourth mounting ring;

[0059] 8-Center burner holder; 801-Plate body; 802-Flame cap holder; 803-Center burner chamber; 804-Center burner slot; 805-Fourth mounting hole;

[0060] 9-Center ejector; 901-Air inlet; 902-Venturi ejector;

[0061] 10-Air guide shroud; 1001-Mixing chamber; 1002-First guide surface; 1003-Second guide surface;

[0062] 11-Air supply device; 12-Premix pipe; 13-Outer ring flame nozzle; 14-Flow control and feedback device; 15-Solenoid valve; 16-Main air inlet pipe; 17-Center flame air inlet pipe; 18-Outer ring flame air inlet pipe; 19-Stove body. Detailed Implementation

[0063] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0064] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0065] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0066] like Figures 1 to 3 As shown, the concentric flame burner of this invention includes a base 3, an outer ring flame cap 2, a central flame cap 4, and a pot rack 1. The outer ring flame cap 2 is mounted on the base 3, and a central flame cap seat 8 is provided inside the base 3. The central flame cap 4 is mounted on the central flame cap seat 8. A support frame 7 is detachably connected to the base 3, and the pot rack 1 is detachably connected to the base 3 and the support frame 7.

[0067] like Figures 4 to 7 As shown, the outer ring fire cover 2 includes a centripetal inclined surface 201, a first locking ring 202 and a second locking ring 203. The first locking ring 202 is connected to the second locking ring 203 through the centripetal inclined surface 201. An arc transition surface 204 is provided between the second locking ring 203 and the centripetal inclined surface 201.

[0068] The centripetal inclined surface 201 is provided with at least one ring of outer ring flame outlet holes 205. The outer ring flame outlet holes 205 are distributed centripetally and penetrate the centripetal inclined surface 201. This application uses three rings of outer ring flame outlet holes 205 as an example for illustration.

[0069] A truncated cone 206 is provided at the outlet end of each outer ring flame outlet 205 on the centripetal inclined surface 201, and the truncated cone 206 protrudes from the upper surface of the centripetal inclined surface 201. The design of the truncated cone 206 can play a role in waterproofing and preventing clogging, extending the service life of the burner, and increasing heat dissipation efficiency.

[0070] The outer ring flame outlet 205 is provided in three rings along the centripetal inclined surface 201, and the outer ring flame outlet 205 on each ring is closely distributed to improve the stability of the flame during combustion.

[0071] The sum of the length of the outer ring flare hole 205 and the protruding height of the truncated cone 206 is the total length a, and the inner diameter of the outer ring flare hole 205 is b. The length-to-diameter ratio of the total length a to the inner diameter b of the outer ring flare hole is (2.3~2.4):3. This structural design can greatly reduce the possibility of tempering.

[0072] An air curtain hole 207 and an air curtain groove 208 are provided on the centripetal inclined surface 201. The air curtain groove 208 is recessed inward along the centripetal inclined surface 201. The air curtain hole 207 is connected to the air curtain groove 208. Through the design of the air curtain hole 207 and the air curtain groove 208, when the pot is moved for dry heating, the mixed gas that cannot be ignited at the outermost ring of the outer ring flame outlet 205 is blown towards the center, so that it can be fully burned, which can effectively prevent gas leakage and improve safety. The angle between the air curtain hole 207 and the horizontal direction is 25°.

[0073] like Figure 11 and Figure 12 As shown, the pot rack 1 includes an integrally formed energy-concentrating panel 103, a pot support 101, a first mounting ring 104, and an outer ring retaining ring 106. The pot support 101 is inclined, and two adjacent pot support 101 cooperate to form an air input channel 102. An arc-shaped transition surface 107 is provided between the air input channel 102 and the pot support 101, which is conducive to supplementing air to the outer ring burner cap 2 and the inner ring burner cap, thereby improving combustion efficiency.

[0074] The first mounting ring 104 is connected to one side of the cookware support 101 via the energy-concentrating panel 103. The first mounting ring 104 is provided with a first mounting hole 105 and a clearance block 109. A fastener passes through the first mounting hole 105 and connects to the third mounting hole 306 on the second mounting ring 305, thereby achieving a fixed connection between the cookware rack 1 and the base 3. The clearance block 109 is located at the bottom of the first mounting ring 104 and is used to support the second mounting ring 305 to prevent the bottom of the first mounting ring 104 from colliding with the fastener.

[0075] The other side of the cookware support 101 is connected to the outer ring retainer 106. A reinforcing rib 108 is provided between the outer ring retainer 106 and the energy-concentrating panel 103 to improve the overall strength of the cookware frame 1.

[0076] The energy-concentrating panel 103 has a downward concave structure, which reduces heat loss and energy consumption, while also promoting even heating of the cookware.

[0077] When the cookware is placed on the cookware rack 1, the distance between the bottom of the cookware and each outer ring flame hole 205 is L, 15mm≤L≤25mm. This application prefers to use L=20mm. This structural design can make the combustion more complete and increase the thermal efficiency.

[0078] like Figure 13As shown, the support frame 7 can support the panel 701, the third mounting ring 702, and the fourth mounting ring 703. The third mounting ring 702 is connected to the fourth mounting ring 703 through the support panel 701. Both the third mounting ring 702 and the fourth mounting ring 703 are provided with third mounting holes 306. By passing fasteners through the third mounting holes 306 on the third mounting ring 702 and the second mounting ring 305, the support frame 7 and the base 3 are fixedly assembled.

[0079] The outer ring retainer 106 of the pot holder 1 is snapped onto the edge of the fourth mounting ring 703.

[0080] like Figure 8 As shown, the base 3 has a base plate 302, an outer ring ignition chamber 301, and an outer ring ignition ejector tube 304 communicating with the outer ring ignition chamber 301. The base plate 302 is located at the center of the base 3, and the center ignition cap seat 8 is detachably connected to the base plate 302. The base plate 302 has a second mounting hole 303 for connecting the center ignition ejector 9.

[0081] The top surface of the base plate 302 is provided with at least one air inlet groove 308. The present invention preferably uses four air inlet grooves 308 to supplement air to the outer ring fire chamber 301.

[0082] The top edge of the base 3 is provided with an outer ring flame cap groove 307. The second snap ring 203 on the outer ring flame cap 2 is snapped into the outer ring flame cap groove 307, and the first snap ring 202 on the outer ring flame cap 2 is snapped onto the central flame cap seat 8, so as to achieve stable assembly between the outer ring flame cap 2 and the base 3.

[0083] The base 3 has a second mounting ring 305 on its top outer side, and a number of third mounting holes 306 are provided on the second mounting plate. The third mounting holes 306 are arranged in a ring and are used to connect with the support frame 7.

[0084] like Figure 9 The central ignition ejector 9 is provided with a Venturi ejector port 902 and at least one air inlet port 901 inside. The air inlet port 901 is used to introduce air into the central ignition ejector 9 to improve the mixing efficiency of fuel gas and air. This application preferably uses four air inlets 901 to achieve full premixing.

[0085] like Figure 10 As shown, the center flame cap seat 8 includes an integrally formed plate 801 and a flame cap seat 802. The flame cap seat 802 is located at the center of the plate 801. Both the plate 801 and the base plate 302 are provided with a fourth mounting hole 805. The center flame cap seat 8 and the base plate 302 are fixedly connected by fasteners passing through the fourth mounting hole 805.

[0086] The burner holder 802 is provided with a central flame chamber 803 and a central burner slot 804. The central burner 4 is assembled in the central burner slot 804. The central flame chamber 803 is connected to the second mounting hole 303, which facilitates the central flame ejector 9 to input the mixed gas into the central burner 4, thereby improving the combustion efficiency.

[0087] Thermocouples 6 and ignition needles 5 are installed on both the main body 801 and the base plate 302.

[0088] like Figure 14 As shown, the burner also includes an air guide shroud 10 and an air supply device 11. The outer ring flame injector 304 of the base 3 is connected to the air guide shroud 10 via a premixing pipe 12. The air guide shroud 10 is connected to the air supply device 11, and an outer ring flame nozzle 13 is installed on the air guide shroud 10. The air supply device 11 can directly deliver external air to the premixing pipe 12, and perform full premixing with the combustion gas injected into the outer ring flame nozzle 13, thereby improving combustion efficiency.

[0089] The air supply device 11 is preferably a fan.

[0090] like Figure 15 As shown, the air guide shroud 10 is provided with a mixing chamber 1001, a first guide surface 1002, and a second guide surface 1003. The outer ring flame nozzle 13 is horizontally connected to the air guide shroud 10 and communicates with the mixing chamber 1001. The first guide surface 1002 and the second guide surface 1003 are inclined along the inner wall of the air guide shroud 10. The air supply device 11 guides the air through the first guide surface 1002 and the second guide surface 1003, and then forms a coaxial and unidirectional mixed airflow with the gas injected from the outer ring flame nozzle 13 in the mixing chamber 1001 and the premixing pipe 12, thereby achieving uniform mixing of gas and air.

[0091] Figure 16 and Figure 17 As shown, this is a stove according to the present invention, which includes the above-mentioned centripetal flame burner.

[0092] The cooktop also includes a flow controller and feedback device 14, a solenoid valve 15, a main air intake pipe 16, a center flame air intake pipe 17, an outer ring flame air intake pipe 18, and a cooktop body 19. The burner, flow controller and feedback device 14, main air intake pipe 16, center flame air intake pipe 17, and outer ring flame air intake pipe 18 are all located on the cooktop body 19.

[0093] The main intake pipe 16 is connected to the flow control and feedback unit 14, which is connected to the center flame ejector 9 via the center flame intake pipe 17, for supplying air to the center flame cap 4. The flow control and feedback unit 14 controls and feeds back flow information, thereby controlling the fan's airflow based on the feedback flow information.

[0094] The flow control and feedback unit 14 uses a combination of a proportional valve or plug valve and an encoder.

[0095] The signal from the flow control and feedback unit 14 is matched with the rotational speed of the air supply device 11 to adjust the air-gas mixing ratio.

[0096] Solenoid valve 15 is located on the outer ring flame inlet pipe. Solenoid valve 15 is connected to the outer ring flame nozzle 13 through the outer ring flame inlet pipe 18 and is used to supply air to the outer ring flame cover 2.

[0097] When there is too much air entering the premixing pipe 12 through the air supply device 11, heat is easily carried away; when there is too little air entering the premixing pipe 12 through the air supply device 11, the outer ring burner 2 will not burn completely, easily producing carbon monoxide. By matching the flow control and feedback device 14 with the speed of the air supply device 11, air and gas can be mixed in a set ratio to achieve the required combustion efficiency while reducing energy consumption and improving safety during use.

[0098] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to achieve substantially the same technical effect are all covered within the protection scope of the present invention.

Claims

1. A centripetal flame burner, including Base; A pot rack, which is detachably connected to the base; Outer ring fire cap; Both the center flame cap and the outer ring flame cap are assembled on the base; Its features are: The outer ring flame cap has a centripetal inclined surface, and at least one ring of outer ring flame outlet holes are provided on the centripetal inclined surface, and the outer ring flame outlet holes are distributed centripetally. The pot rack includes a pot support for supporting the pot. When the pot is placed on the pot rack, the distance between the bottom of the pot and the outlet end of each of the outer ring flame holes is equal.

2. The centripetal flame burner according to claim 1, characterized in that: The spacing is L, where 15mm ≤ L ≤ 25mm.

3. The centripetal flame burner according to claim 1, characterized in that: A truncated cone is provided on the centripetal inclined surface at the outlet end of each of the outer ring fire holes, and the truncated cone protrudes from the upper surface of the centripetal inclined surface.

4. The centripetal flame burner according to claim 3, characterized in that: The total length a is the sum of the length of the outer ring fire outlet and the protrusion height of the truncated cone. The inner diameter of the outer ring fire outlet is b. The length-to-diameter ratio a:b of the total length a and the inner diameter b of the outer ring fire outlet is (2.3~2.4):

3.

5. The centripetal flame burner according to claim 3, characterized in that: The centripetal inclined surface is provided with an air curtain hole and an air curtain groove. The air curtain groove is recessed inward along the centripetal inclined surface, and the air curtain hole is connected to the air curtain groove.

6. The centripetal flame burner according to claim 1, characterized in that: It also includes a center flame ejector, which is connected to the base plate of the base and is used to supply gas to the center flame cap. The tube wall of the center flame ejector is provided with at least one air inlet.

7. The centripetal flame burner according to claim 6, characterized in that: The central ejector is provided with a Venturi ejector hole, which is connected to the air inlet.

8. The centripetal flame burner according to claim 6, characterized in that: The top surface of the base plate is provided with at least one air inlet slot.

9. The centripetal flame burner according to claim 1, characterized in that: It also includes an air supply device, an air guide hood, and a premixing pipe. The base is provided with an outer ring fire ejector pipe that connects to the outer ring fire chamber. The air guide hood is connected to the outer ring fire ejector pipe through the premixing pipe. The air supply device is connected to the air guide hood and delivers air to the premixing pipe through the air supply device.

10. The centripetal flame burner according to claim 9, characterized in that: The air guide shroud is provided with a mixing chamber, and a first guide surface and a second guide surface are inclinedly arranged along the inner wall of the air guide shroud. An outer ring flame nozzle communicating with the mixing chamber is mounted on the air guide shroud. After the air supply device guides the air through the first guide surface and the second guide surface, it forms a coaxial and unidirectional mixed airflow with the gas injected from the outer ring flame nozzle in the mixing chamber and the premixing pipe.

11. A stove, characterized in that: Including the centripetal extreme flame burner as described in any one of claims 1 to 10.

12. A stove according to claim 11, characterized in that: It also includes a flow controller and feedback device, a solenoid valve, a main air intake pipe, a center flame air intake pipe, an outer ring flame air intake pipe, and a stove body. The flow controller and feedback device, the main air intake pipe, the center flame air intake pipe, and the outer ring flame air intake pipe are all located on the stove body. The main air intake pipe is connected to the flow controller and feedback device. The flow controller and feedback device is connected to the center flame ejector and the outer ring flame nozzle respectively through the center flame air intake pipe and the outer ring flame air intake pipe. The solenoid valve is located on the outer ring flame air intake pipe.

13. A stove according to claim 12, characterized in that: The flow control and feedback device employs a combination of a proportional valve or plug valve and an encoder.

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