Burners and stoves

Abstract

This application discloses a burner and a stove, belonging to the technical field of gas stoves. The burner includes a flame distributor and a rotating component. The flame distributor has an air inlet channel and an air outlet channel, which are connected to the air inlet channel. The air outlet channel has an upward-facing air outlet. The air inlet channel is used to receive combustible gas and to transmit combustible gas to the air outlet channel through the air outlet channel. At least a portion of the rotating component is disposed in the air outlet channel and is rotatably connected to the flame distributor. The rotating component can rotate under the action of an external force to form a swirling flame at the air outlet. This embodiment can enhance the flame disturbance of the burner and strengthen the convective heat transfer at the bottom of the cookware, thereby improving the combustion efficiency of the burner.

Description

Technical Field

[0001] This application relates to the field of gas stove technology, and in particular to a burner and stove. Background Technology

[0002] A stove is a common kitchen appliance in daily life. A stove usually consists of a pot rack and a burner. The pot rack is located around the burner and is used to support the pot. The burner is used to heat the pot.

[0003] In related technologies, many stoves use open combustion. In actual use, when the pot is placed on the pot support for heating, there is a certain space between the pot and the pot support, and the flame will spread directly outward, resulting in low thermal efficiency. Summary of the Invention

[0004] This application provides a burner and a stove that can enhance flame disturbance and improve convective heat transfer at the bottom of the cookware, thereby increasing combustion efficiency.

[0005] In a first aspect, embodiments of this application provide a burner, including:

[0006] The flame distributor has an air inlet channel and an air outlet channel. The air outlet channel is connected to the air inlet channel and has an upward-facing air outlet. The air inlet channel is used to receive combustible gas and to transmit the combustible gas to the air outlet through the air outlet channel.

[0007] A rotating component, at least a portion of which is disposed in the air outlet channel and rotatably connected to the flame distributor, is capable of rotating under external force to form a swirling flame at the air outlet.

[0008] In some embodiments of this application, the rotating component includes a fan blade located within the air outlet channel. The fan blade includes multiple blades, and there is an airflow gap between two adjacent blades. When the combustible gas flows from the air outlet channel to the air outlet, the fan blade rotates under the action of the airflow in the air outlet channel.

[0009] In some embodiments of this application, the rotating component further includes a rotating shaft that extends into the air outlet channel and is rotatably connected to the flame distributor. The axial direction of the rotating shaft is parallel to the axial direction of the flame distributor, and multiple blades are arranged sequentially along the outer periphery of the rotating component.

[0010] In some embodiments of this application, the fan blades are disposed at the air outlet.

[0011] In some embodiments of this application, the air outlet channel includes a first channel and a second channel communicating with the first channel. The diameter of the second channel is larger than the diameter of the first channel. The second channel has the air outlet. The rotating component is installed in the second channel.

[0012] In some embodiments of this application, the first channel has a communication port communicating with the second channel, and a flow booster plate is provided at the communication port to close at least part of the communication port. The flow booster plate is provided with a vent connecting the first channel and the second channel.

[0013] In some embodiments of this application, the flame distributor also has multiple flame outlets, which are arranged around the outer periphery of the air outlet channel and communicate with the air inlet channel.

[0014] In some embodiments of this application, the fire distributor includes:

[0015] The base, wherein the air intake channel is disposed on the base;

[0016] The inner burner cap is connected to the base, the air outlet channel is located in the inner burner cap, and the rotating component is rotatably connected to the inner burner cap;

[0017] An outer flame cap is connected to the base and is arranged around the periphery of the inner flame cap;

[0018] The plurality of flame outlets include a plurality of inner flame outlets and a plurality of outer flame outlets. The plurality of inner flame outlets are disposed on the inner flame cover and are arranged around the outer periphery of the gas outlet channel. The plurality of outer flame outlets are disposed on the outer flame cover and are spaced apart and arranged in a circular pattern on the outer flame cover.

[0019] In some embodiments of this application, the inner flame cap and the outer flame cap are spaced apart, and an annular gas supply channel is formed between the inner flame cap and the outer flame cap. Both the inner flame hole and the outer flame hole are connected to the gas supply channel.

[0020] Secondly, embodiments of this application also provide a stove, including a pot rack and a burner as described in any of the above embodiments, wherein the pot rack is arranged around the outer periphery of the burner.

[0021] In some embodiments of this application, the pot rack includes a pot rack body, and the top of the pot rack body is provided with a gas replenishment groove, which penetrates the inner and outer sides of the pot rack body and communicates with the flame distributor.

[0022] In some embodiments of this application, the top of the pot frame body is provided with a plurality of protrusions, the plurality of protrusions are arranged at intervals around the periphery of the flame distributor, and the gas replenishment groove is formed between two adjacent protrusions.

[0023] Based on the burner and stove in this embodiment, this embodiment, by setting a rotatable rotating component in the gas outlet channel, causes the combustible gas to form a swirling flow when ejected. The flame burns stably in a spiral shape at the top of the burner. The swirling flame has stronger turbulence intensity, which can enhance the convective heat transfer between the flame and the bottom of the pot, reduce heat loss, and improve thermal efficiency. Simultaneously, the combustion flame produces high-temperature flue gas. The swirling flame allows for more concentrated flame combustion, effectively reducing flame spread. Furthermore, the high-temperature flue gas flows under the inertia of rotation, which to some extent extends the heat transfer path between the flue gas and the bottom of the pot, concentrating heat in the bottom area. This helps to suppress the rapid dissipation of high-temperature flue gas from the gap between the burner and the bottom of the pot, further improving the burner's thermal efficiency. Because the flame combustion in the burner is more concentrated and flame spread is reduced, the combustible gas burns more completely, which can reduce the risk of carbon monoxide and nitrogen oxide formation to some extent, lower the concentration of harmful gas emissions, and improve combustion safety and environmental performance. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the burner structure in one embodiment of this application;

[0026] Figure 2 This is a first-view structural schematic diagram of a cross-section of a burner in one embodiment of this application;

[0027] Figure 3 This is a cross-sectional second-view structural schematic diagram of the burner in one embodiment of this application;

[0028] Figure 4 This is a schematic diagram of the stove structure in one embodiment of this application;

[0029] Figure 5 This is a cross-sectional structural diagram of a stove in one embodiment of this application.

[0030] Figure label:

[0031] 100. Burner;

[0032] 10. Flame distributor; 11. Inlet channel; 12. Outlet channel; 121. Outlet; 122. First channel; 123. Second channel; 13. Flow booster; 131. Vent; 14. Flame outlet; 141. Inner flame port; 142. Outer flame port; 15. Base; 16. Inner flame cap; 17. Outer flame cap; 18. Gas supply channel;

[0033] 20. Rotating component; 21. Rotating shaft; 22. Fan blade; 221. Blade;

[0034] 200. Stoves;

[0035] 30. Pot support; 31. Pot support body; 311. Gas filling groove; 312. Protrusion; 32. Pot support feet;

[0036] 40. Support plate. Detailed Implementation

[0037] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, a clear and complete description will be provided below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0038] In related technologies, many stoves are open-type combustion systems, with a certain spatial gap between the cookware and the burner. In actual use, the flame tends to spread outward, resulting in insufficient contact between the flame and the bottom of the pot, which leads to low combustion efficiency and low thermal energy utilization.

[0039] Regarding the above situation, firstly, please refer to [link / reference needed]. Figures 1-2 This application proposes a burner 100, including a flame spreader 10 and a rotating component 20.

[0040] The ignition distributor 10 has an inlet channel 11 and an outlet channel 12. The outlet channel 12 is connected to the inlet channel 11 and has an upward-facing outlet 121. The inlet channel 11 is used to receive combustible gas and to transmit the combustible gas to the outlet 121 through the outlet channel 12. The outlet 121 is located at the top of the ignition distributor 10. The combustible gas introduced into the inlet channel 11 is a mixture of fuel gas and primary air. The combustible gas enters the outlet channel 12 through the inlet channel 11 and is then ejected from the outlet 121 at the top, where it is ignited by an ignition device to produce a flame.

[0041] At least a portion of the rotating component 20 is disposed in the gas outlet channel 12 and is rotatably connected to the flame distributor 10. The rotating component 20 can rotate under the action of external force. The rotation of the rotating component 20 can disturb the combustible gas ejected from the gas outlet channel 12, so that a swirling flame is formed at the gas outlet 121.

[0042] Understandably, when the combustible gas of gas and primary air is ejected from the gas outlet 121, the rotation of the rotating component 20 causes the combustible gas to rotate, making the flame burn upward in a spiral shape, increasing the contact area and residence time between the flame and the bottom of the pot, and enhancing the heat transfer efficiency.

[0043] It should be noted that, in this embodiment, a rotatable rotating component 20 is provided in the gas outlet channel 12, causing the combustible gas to form a swirling flow when ejected. The flame burns stably in a spiral shape at the top of the burner 10. The swirling flame has stronger turbulence intensity, which can enhance the convective heat transfer between the flame and the bottom of the pot, reduce heat loss, and improve thermal efficiency. Simultaneously, the combustion flame produces high-temperature flue gas. The swirling flame allows for more concentrated flame combustion, effectively reducing flame spread. Furthermore, the high-temperature flue gas flows under the inertia of rotation, which to some extent extends the heat transfer path between the flue gas and the bottom of the pot, concentrating heat in the area at the bottom of the pot. This helps to suppress the rapid dissipation of high-temperature flue gas from the gap between the burner 10 and the bottom of the pot, further improving the thermal energy utilization efficiency of the burner 100. Because the flame combustion in the burner 10 is more concentrated, flame spread is reduced, resulting in more complete combustion of the combustible gas. This can, to some extent, reduce the risk of carbon monoxide and nitrogen oxide formation, lower the concentration of harmful gas emissions, and improve combustion safety and environmental performance.

[0044] In some embodiments, the rotation axis of the rotating member 20 is substantially coincident with the central axis of the gas outlet 121. The rotating member 20 is provided with helical blades or eccentric protrusions. When the combustible gas flows through the rotating member 20, it generates a circumferential velocity component due to the guiding effect of the blades or protrusions, thereby forming a stable swirling flame. The inclination angle and number of the helical blades can be set according to the power requirements of the burner 100 and the flame shape control requirements. This application does not impose specific limitations.

[0045] In some embodiments, the burner 100 further includes a gas passage, an air passage, and a mixing chamber. The gas passage and the air passage are both connected to the mixing chamber. The gas passage is used to introduce gas into the mixing chamber, and the air passage is used to introduce primary air into the mixing chamber. The mixing chamber is connected to the air intake passage 11. After the gas and primary air are mixed in the mixing chamber, they form a combustible gas, which is then ejected from the air outlet 121 through the air intake passage 11.

[0046] In some embodiments of this application, such as Figures 2-3As shown, the rotating component 20 includes a fan blade 22 located within the exhaust channel 12. The fan blade 22 includes multiple blades 221, with airflow gaps between adjacent blades 221. When combustible gas flows from the exhaust channel 12 to the exhaust port 121, the fan blade 22 rotates under the action of the airflow in the exhaust channel 12. At this time, the fan blade 22 does not require additional power to drive it and can achieve automatic rotation solely by the impact of the airflow in the exhaust channel 12, which helps to simplify the structure of the burner 100 and reduce energy consumption. When combustible gas is ejected from the exhaust port 121, the airflow acts on the blades 221, causing them to rotate under force, thereby achieving self-spinning without external power and forming a stable swirling flame.

[0047] Alternatively, in some embodiments, the rotating component 20 can also rotate under the driving force of other driving components, such as a motor or electromagnetic drive device, thereby actively controlling the swirling intensity and flame shape. By adjusting the rotation speed of the rotating component 20, it can adapt to the heat load requirements of different cookware bottoms, thereby improving combustion stability and energy efficiency.

[0048] Please see Figures 2-3 In some embodiments of this application, the rotating member 20 further includes a rotating shaft 21, which extends into the air outlet passage 12 and is rotatably connected to the flame distributor 10. The axial direction of the rotating shaft 21 is parallel to the axial direction of the flame distributor 10, and multiple blades 221 are arranged sequentially along the outer periphery of the rotating member 20.

[0049] It is understandable that, along the top-down direction, the fan blade 22 rotates clockwise, and the blade surface of each blade 221 tilts downward along the front of the clockwise rotation, visually each blade 221 appears to be "diving forward". At this time, when the tilted blade 221 rotates clockwise, it will continuously compress the gas below the blade 221, push the airflow in the air outlet channel 12 to flow upward, and spray it out from the airflow gap, thereby forming a swirling flame at the air outlet 121.

[0050] Specifically, the fire distributor 10 extends vertically, therefore the axis of the fire distributor 10 is vertical. Figure 2Taking the shown perspective as an example, when the burner 100 is placed on a table or countertop, the axis of the flame spreader 10 is perpendicular to the horizontal plane, and the axis of the rotating shaft 21 is parallel to the axis of the flame spreader 10, meaning the rotating shaft 21 is also vertically oriented. The fan blades 22 rotate in a vertical plane. When the airflow passes through the outlet channel 12 from bottom to top, it impacts the inclined surface of the blades 221, generating torque around the rotating shaft 21, thereby driving the fan blades 22 to rotate continuously. Multiple blades 221 are radially distributed, and each blade 221 has an inclined angle. This inclined angle causes the airflow to generate a tangential force when passing through the blades 221, thus allowing the airflow to drive the fan blades 22 to rotate continuously, forming a stable vortex. The width of the airflow gap matches the curvature of the blades 221 to guide the combustible gas to generate a uniform circumferential velocity as it passes through.

[0051] In some embodiments, the axial direction of the flame spreader 10 coincides with the axial direction of the gas outlet 121, and the axial direction of the gas outlet 121 coincides with the axial direction of the rotating member 20, so that the swirling flame generated at the gas outlet 121 is located in the central region of the flame spreader 10. Therefore, the flame contacts the central region of the bottom of the pot, realizing concentrated heat transfer, reducing flame expansion, and improving heating efficiency.

[0052] Furthermore, such as Figure 2 As shown, the fan blade 22 is positioned at the air outlet 121, so that the combustible gas in the air outlet channel 12 comes into contact with the fan blade 22 the instant it is ejected from the air outlet 121 and is guided by it to generate a rotational motion. This effectively enhances the swirling intensity of the combustible gas at the air outlet 121, thereby rapidly forming a swirling flame with high turbulence intensity at the air outlet 121. This is beneficial for enhancing the convective heat transfer between the flame and the bottom of the cookware, and improving thermal efficiency.

[0053] Please see Figures 2-3 In some embodiments of this application, the air outlet channel 12 includes a first channel 122 and a second channel 123 communicating with the first channel 122. The diameter of the second channel 123 is larger than the diameter of the first channel 122. The second channel 123 has an air outlet 121. The rotating member 20 is installed in the second channel 123.

[0054] It is understandable that the first channel 122 and the second channel 123 are arranged vertically continuously, with the first channel 122 located below the second channel 123. The combustible gas passes through the first channel 122 from bottom to top and then enters the second channel 123. The second channel 123 with a larger pipe diameter is set above the first channel 122, which facilitates the installation of the rotating part 20 in the second channel 123 and makes the diameter of the gas outlet 121 larger, which is conducive to increasing the diffusion range of the airflow at the gas outlet 121 and increasing the turbulence effect.

[0055] Furthermore, in some embodiments of this application, such as Figure 3As shown, the first channel 122 has a connection port that communicates with the second channel 123. A flow booster plate 13 is provided at the connection port to close at least part of the connection port. The flow booster plate 13 is provided with a vent 131 that connects the first channel 122 and the second channel 123.

[0056] Since the diameter of the second channel 123 is larger than that of the first channel 122, the gas velocity will decrease after entering the second channel 123 from the first channel 122. To compensate for the impact of the decrease in velocity on the swirling intensity, the booster plate 13 increases the gas velocity when passing through the vent 131 by reducing the cross-sectional area of ​​the connecting port, thereby enhancing the kinetic energy of the gas entering the second channel 123 and improving the swirling effect.

[0057] Specifically, the booster plate 13 is fixedly connected to the connection port to ensure that the booster plate 13 smoothly blocks part of the airflow through the connection port, while maintaining the structural stability of the booster plate 13 and preventing displacement or vibration of the booster plate 13 due to airflow impact. This ensures that the flow area of ​​the vent 131 is constant and maintains the stability of the airflow velocity. The rotating shaft 21 is rotatably connected to the booster plate 13, and the rotating shaft 21 passes through the central area of ​​the booster plate 13, so that the rotating component 20 is stably suspended in the second channel 123. Multiple vents 131 can be provided on the booster plate 13. The multiple vents 131 are arranged at intervals around the circumference of the rotating shaft 21 to uniformly guide the airflow in the first channel 122 into the second channel 123.

[0058] Please see Figures 1-2 In some embodiments of this application, the flame distributor 10 also has a plurality of flame outlet holes 14, which are arranged around the outer periphery of the air outlet channel 12 and are connected to the air inlet channel 11.

[0059] Specifically, the combustible gases of gas and primary air are delivered to multiple flame outlets 14 through the air intake channel 11, and are ignited by the ignition device at the flame outlets 14 to produce flames. The multiple flame outlets 14 surround the outer periphery of the gas outlet 121, thereby forming a ring flame on the outer periphery of the gas outlet 121. This forms a double flame layout with the swirling flame in the central area of ​​the gas outlet 121, effectively expanding the heating area. Moreover, the swirling flame at the gas outlet 121 has a strong disturbance effect, which can fully stir the hot and cold airflow at the bottom of the pot. The ring flame and the swirling flame work together to form a stable combustion system, reducing flame lift-off and backfire phenomena, making the heat distribution more uniform and improving thermal efficiency.

[0060] Furthermore, in some embodiments of this application, such as Figure 2As shown, the flame distributor 10 includes a base 15, an inner flame cap 16, and an outer flame cap 17. An air intake channel 11 is disposed on the base 15. The inner flame cap 16 is connected to the base 15, and an air outlet channel 12 is located on the inner flame cap 16. A rotating component 20 is rotatably connected to the inner flame cap 16. The outer flame cap 17 is connected to the base 15 and is disposed around the periphery of the inner flame cap 16. The multiple flame outlet holes 14 include multiple inner flame holes 141 and multiple outer flame holes 142. The multiple inner flame holes 141 are disposed on the inner flame cap 16 and are arranged around the outer periphery of the air outlet channel 12. The multiple outer flame holes 142 are disposed on the outer flame cap 17 and are spaced apart and arranged in a circular pattern on the outer flame cap 17.

[0061] It is understood that the multiple inner flame holes 141 on the inner flame cap 16 and the multiple outer flame holes 142 on the outer flame cap 17 can all form annular flames. Together, they achieve a uniform distribution of firepower, improving combustion stability and thermal efficiency. Both the inner flame cap 16 and the outer flame cap 17 have connecting cavities. The combustible gas transported by the air intake channel 11 is delivered to the inner flame holes 141 and the outer flame holes 142 through these connecting cavities, ensuring uniform distribution of the combustible gas. The number of inner flame holes 141 can be two, three, four, or more; this application does not impose a specific limit on the number of inner flame holes 141. Similarly, the number of outer flame holes 142 can be two, three, four, or more; this application does not impose a specific limit on the number of outer flame holes 142.

[0062] In some embodiments, the vent 121 is disposed on the top surface of the inner fire cover 16, and the inner fire hole 141 is disposed on the side of the inner fire cover 16. The hole axis of the inner fire hole 141 is set at an angle to the axis of the vent 121, so that the flame ejected from the inner fire hole 141 is inclined and spread upward in a direction away from the vent 121, forming a wider flame coverage area, thereby enhancing the heating effect on the bottom of the cookware.

[0063] Please see Figures 1-3 In some embodiments of this application, the inner flame cover 16 and the outer flame cover 17 are spaced apart, and a gas supply channel 18 is formed between the inner flame cover 16 and the outer flame cover 17. The inner flame hole 141 and the outer flame hole 142 are both connected to the gas supply channel 18.

[0064] Specifically, the gap between the inner burner cap 16 and the outer burner cap 17 provides a channel for secondary air supply. The air supply channel 18 guides external secondary air to replenish the combustion area between the inner burner hole 141 and the outer burner hole 142 in a timely manner, ensuring sufficient oxygen during combustion. Furthermore, the swirling flow can fully mix the secondary air with the flame, further promoting complete combustion of the fuel gas, reducing the generation of harmful gases such as carbon monoxide and nitrogen oxides, and improving combustion safety. Simultaneously, because the burner 100 burns more completely, it reduces flame expansion, resulting in a shorter flame length. This confines more smoke to the bottom of the cookware, increases the smoke flow path, improves heat utilization efficiency, and reduces heat loss.

[0065] The air supply channel 18 can be a ring-shaped structure surrounding the inner burner cap 16, or it can be segmented into multiple independent ventilation gaps to ensure that secondary air flows evenly into the combustion zone. The air inlet of the air supply channel 18 can be located at the bottom of the inner and outer burner caps, facilitating the natural intake of air from outside the burner; alternatively, the air inlet of the air supply channel 18 can also be located on the outer wall of the outer burner cap to guide air located on the outer periphery of the outer burner cap into the air supply channel 18.

[0066] Secondly, please see Figure 4 This application also provides a stove 200, including a pot rack 30 and a burner 100 as described in any of the above embodiments. The pot rack 30 is arranged around the outer periphery of the burner 100. The pot rack 30 is an annular structure with a central through hole at the center position. The pot rack 30 can be circular, but it can also be square or other shapes depending on actual needs. The central through hole can also be circular, square, or other shaped holes. The shape of the central through hole is usually adapted to the overall shape of the burner 100.

[0067] Understandably, when using the stove 200, the burner 100 is placed at the central through hole of the pot rack 30, the pot rack 30 is arranged around the outer periphery of the burner 100, and the pot (which can be a frying pan, pressure cooker, saucepan, frying pan or other types) is placed on the pot rack 30. The burner 100, the pot rack 30 and the pot form a combustion space. The burner 100 generates a swirling flame at the bottom of the pot, which enhances the convective heat transfer at the bottom of the pot, thereby improving the thermal efficiency of the stove 200.

[0068] Please continue reading Figure 4 In some embodiments of this application, the pot rack 30 includes a pot rack body 31, and a gas replenishment groove 311 is provided on the top of the pot rack body 31. The gas replenishment groove 311 penetrates the inner and outer sides of the pot rack body 31 and is connected to the flame distributor 10.

[0069] Understandably, the pot frame body 31 and the burner 10 are vertically spaced apart, with a first gap between their bottoms. The air supply groove 311 connects to the air supply channel 18 of the burner 10 through this first gap, allowing air from the outer periphery of the pot frame body 31 to smoothly enter the air supply channel 18 of the burner 10 through the air supply groove 311 and the first gap. The air supply groove 311 further optimizes the flow path of secondary air. Specifically, when the burner 100 is working, the temperature of the pot frame body 31 gradually increases. When the secondary air flows through the air supply groove 311, it absorbs some of the heat from the pot frame body 31 and is preheated. The preheated secondary air then enters the combustion zone, which helps to improve combustion efficiency.

[0070] The gas supply groove 311 is provided in multiple ways, and the multiple gas supply grooves 311 are arranged around the periphery of the burner 100. The gas supply grooves 311 can guide external air to flow evenly into the gas supply channel 18 along the periphery of the pot frame body 31, thereby improving the balance of secondary air supply during combustion and enhancing flame stability.

[0071] In some embodiments, such as Figures 4-5 As shown, the pot rack 30 also includes pot support legs 32 disposed on the top of the pot rack body 31. The pot support legs 32 support the pot. When using the pot rack 30, the pot is placed on the pot support legs 32, which separate the pot from the pot rack body 31, creating an exhaust channel between the bottom surface of the pot and the pot rack body 31. The flue gas generated during combustion by the burner 100 can be discharged through this exhaust channel. The exhaust channel and the air supply groove 311 are arranged vertically, with the exhaust channel located above the air supply groove 311. Figure 5 The direction indicated by the dashed arrow A is the flow direction of the secondary air, and the direction indicated by the dotted arrow B is the flow direction of the flue gas. When the burner 100 is working, the flue gas is discharged from the exhaust channel to the outside of the boiler body 31, and the secondary air flows into the inside of the boiler body 31 from the air supply groove 311. During this process, the flue gas and the secondary air can undergo convective heat exchange, which increases the temperature of the secondary air and thus further improves the combustion efficiency. At the same time, the convective heat exchange process effectively reduces the flue gas emission temperature, reduces heat energy waste, and improves the overall thermal efficiency of the machine.

[0072] The pot support legs 32 can be connected to the pot frame body 31 by non-removable means such as welding or integral molding, or they can be connected to the pot frame body 31 by detachable means such as snap-fit ​​or threaded connection. The number of pot support legs 32 can be two, three, four or more, and the top surface of the pot support legs 32 can be parallel to the horizontal plane, or the top surface of the pot support legs 32 can be curved or wavy.

[0073] In some embodiments, such as Figure 5As shown, the stove 200 also includes a support plate 40, a burner 100 and a pot rack 30, all of which are mounted on the support plate 40. The pot support legs 32 are connected to the support plate 40 to provide more stable support for the pot rack 30 through the support plate 40.

[0074] Please see Figure 4 In some embodiments of this application, the top of the pot frame body 31 is also provided with a plurality of protrusions 312, the plurality of protrusions 312 are arranged at intervals around the periphery of the flame distributor 10, and a gas replenishment groove 311 is formed between two adjacent protrusions 312.

[0075] Specifically, the protrusion 312 is integrally formed with the pot support body 31, and its height is slightly lower than the pot support legs 32 to ensure that the pot is placed stably. When the burner 100 is working, the top surface of the pot support body 31 has a high temperature. Since the protrusion 312 of the pot support body 31 is closer to the bottom of the pot, the heat radiation generated by the protrusion 312 is stronger. The protrusion 312 can transfer more heat to the bottom of the pot through heat radiation, thereby improving the heat energy utilization rate.

[0076] In some embodiments, a heat radiation layer may be provided on the surface of the protrusion 312. The heat radiation layer can enhance the heat radiation effect of the protrusion 312, thereby improving the heat exchange efficiency between the pot rack 30 and the pot, and further improving the heating efficiency of the burner 100 on the pot. The heat radiation layer may be formed of infrared radiant materials such as metal oxides (e.g., Fe2O3, MnO2, Cr2O3, Al2O3, ZrO2, TiO2, etc.) or carbides and composites (e.g., SiC, iron, aluminum, magnesium oxides, etc.).

[0077] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0078] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A burner, characterized in that, include: The flame distributor has an air inlet channel and an air outlet channel. The air outlet channel is connected to the air inlet channel and has an upward-facing air outlet. The air inlet channel is used to receive combustible gas and to transmit the combustible gas to the air outlet through the air outlet channel. A rotating component, at least a portion of which is disposed in the air outlet channel and rotatably connected to the flame distributor, wherein the rotating component is capable of rotating under the action of an external force to form a swirling flame at the air outlet; A driving component is connected to the rotating component to drive the rotating component to rotate, and the driving component is used to adjust the rotational speed of the rotating component; The air outlet channel includes a first channel and a second channel communicating with the first channel. The diameter of the second channel is larger than that of the first channel. The second channel has the air outlet. The rotating component is installed in the second channel.

2. The burner according to claim 1, characterized in that, The rotating component includes a fan blade located within the air outlet channel. The fan blade comprises multiple blades, with an airflow gap between adjacent blades. When the combustible gas flows from the air outlet channel to the air outlet, the fan blade rotates under the action of the airflow in the air outlet channel.

3. The burner according to claim 2, characterized in that, The rotating component also includes a rotating shaft that extends into the air outlet channel and is rotatably connected to the flame distributor. The axial direction of the rotating shaft is parallel to the axial direction of the flame distributor, and multiple blades are arranged sequentially along the outer periphery of the rotating component.

4. The burner according to claim 2, characterized in that, The fan blades are located at the air outlet.

5. The burner according to claim 1, characterized in that, The first channel has a connection port that communicates with the second channel. A flow booster plate is provided at the connection port to close at least part of the connection port. The flow booster plate is provided with a vent that connects the first channel and the second channel.

6. The burner according to claim 1, characterized in that, The flame distributor also has multiple flame outlets, which are arranged around the outer periphery of the air outlet channel and are connected to the air inlet channel.

7. The burner according to claim 6, characterized in that, The fire distributor includes: The base, wherein the air intake channel is disposed on the base; The inner burner cap is connected to the base, the air outlet channel is located in the inner burner cap, and the rotating component is rotatably connected to the inner burner cap; An outer flame cap is connected to the base and is arranged around the periphery of the inner flame cap; The plurality of flame outlets include a plurality of inner flame outlets and a plurality of outer flame outlets. The plurality of inner flame outlets are disposed on the inner flame cover and are arranged around the outer periphery of the gas outlet channel. The plurality of outer flame outlets are disposed on the outer flame cover and are spaced apart and arranged in a circular pattern on the outer flame cover.

8. The burner according to claim 7, characterized in that, The inner flame cap and the outer flame cap are spaced apart, and a gas supply channel is formed between the inner flame cap and the outer flame cap. Both the inner flame hole and the outer flame hole are connected to the gas supply channel.

9. A stove, characterized in that, It includes a pot frame and a burner as claimed in any one of claims 1 to 8, wherein the pot frame is arranged around the outer periphery of the burner.

10. The stove according to claim 9, characterized in that, The pot frame includes a pot frame body, and a gas supply groove is provided on the top of the pot frame body. The gas supply groove extends through the inner and outer sides of the pot frame body and is connected to the burner distributor.

11. The stove according to claim 10, characterized in that, The top of the pot frame body is also provided with multiple protrusions, which are arranged at intervals around the periphery of the flame distributor, and the gas replenishment groove is formed between two adjacent protrusions.

Images