Novel furnace end

Abstract

The utility model relates to the technical field of kitchen utensils, and provides a novel furnace end which comprises a furnace end body provided with a combustion cavity, an ignition needle used for igniting liquid fuel and a heating device used for preheating the liquid fuel to promote gasification of the liquid fuel are arranged on the combustion cavity, and the furnace end body is provided with an air inlet device. A plurality of circles of air inlet channels which are arranged at intervals in the circumferential direction and penetrate through the side portion of the combustion cavity are formed in the side portion of the combustion cavity, the input end of the air inlet device communicates with outside air, the output end of the air inlet device communicates with the air inlet channels, and the outside air enters the combustion cavity through the air inlet device and the air inlet channels and forms spiral airflow spirally flowing in the combustion cavity. After being gasified, the liquid fuel is mixed with the spiral air flow, so that the gasified liquid fuel is fully combusted, and the technical problem that carbon black is easily generated in a combustion cavity due to insufficient combustion after the liquid fuel of an existing furnace end is gasified is effectively solved.

Description

Technical Field

[0001] This utility model relates to the technical field of kitchen utensils, specifically to a novel stove head. Background Technology

[0002] In the market for fuel-fired stoves, liquid fuels, such as vegetable oil, are used. Liquid fuels have a high ignition point and are not easy to ignite. Therefore, liquid fuels need to be preheated to vaporize the liquid before igniting. Most existing burners use a single air intake structure for the combustion chamber, which leads to incomplete combustion of the vaporized liquid fuel and the presence of carbon black in the combustion chamber.

[0003] Furthermore, the sides of the combustion chamber typically employ a single-direction, horizontal air intake structure. The middle of the combustion chamber lacks an air intake structure, resulting in incomplete combustion of the vaporized liquid fuel within the combustion chamber.

[0004] Furthermore, liquid fuel tends to accumulate at the bottom of the combustion chamber, and existing combustion chambers lack an air intake structure that can drive the liquid fuel at the bottom upwards.

[0005] Therefore, further improvements are needed. Utility Model Content

[0006] This invention proposes a novel burner head with several circumferentially spaced air intake channels on the side of the combustion chamber. The output end of the air intake device is connected to the air intake channels. When the air intake device is activated, outside air enters the combustion chamber along the several circumferential air intake channels on the side of the combustion chamber, forming a spiral airflow. The spiral airflow increases the contact area and mixing uniformity with the gasified liquid fuel, ensuring sufficient contact between the gasified liquid fuel and the outside air.

[0007] A novel burner head designed for this purpose includes a burner head body with a combustion chamber. The combustion chamber is equipped with an ignition needle for igniting liquid fuel and a heating device for preheating the liquid fuel to promote its vaporization. The burner head body is equipped with an air intake device. The side of the combustion chamber is provided with several circumferentially spaced air intake channels that penetrate the side of the combustion chamber. The input end of the air intake device is connected to the outside air, and the output end of the air intake device is connected to the air intake channels. The outside air enters the combustion chamber through the air intake device and the several air intake channels, forming a spiral airflow within the combustion chamber. After the liquid fuel is vaporized, it mixes with the spiral airflow to ensure complete combustion of the vaporized liquid fuel.

[0008] The central axis of each intake channel does not intersect with the central axis of the combustion chamber, and each intake channel is laterally inclined towards the inner wall of the combustion chamber. Gas enters the combustion chamber through each intake channel and flows spirally along the inner wall of the combustion chamber to form a spiral airflow.

[0009] The air intake channel includes a lower air intake channel, which is laterally inclined towards the inner wall of the combustion chamber, and the air outlet of the lower air intake channel is set downward towards the bottom wall of the combustion chamber. When the gas enters the combustion chamber along the lower air intake channel, it blows the liquid fuel located on the bottom wall of the combustion chamber upward.

[0010] The air intake channel includes a middle air intake channel and a lower air intake channel that is horizontally inclined towards the inner wall of the combustion chamber.

[0011] The air intake channel includes an upper air intake channel, which is laterally inclined towards the inner wall of the combustion chamber, and the air outlet of the lower air intake channel is upwardly positioned towards the top opening of the combustion chamber.

[0012] The lower, middle, and upper air intake channels are arranged sequentially from bottom to top along the height of the combustion chamber. Gas enters the combustion chamber through the lower, middle, and upper air intake channels respectively, forming an upward spiral airflow within the combustion chamber.

[0013] The combustion chamber has a protrusion on its inner bottom wall, which extends upward from the inner bottom wall and has a vertical ventilation channel inside. The ventilation channel is connected to the output end of the air inlet device. When gas enters the ventilation channel, it blows upward to the top of the combustion chamber. The protrusion is located in the middle of the combustion chamber, and the ventilation channel forms the middle air supply structure of the combustion chamber.

[0014] The upper outer side of the combustion chamber is also provided with several circumferentially spaced guide channels. The guide channels are inclined on the combustion chamber, and the air outlet of the guide channel extends upward along the top opening of the combustion chamber. Outside air is output to the top opening of the combustion chamber through the guide channel, and the guide channel forms the air supply structure at the top opening of the combustion chamber.

[0015] The combustion chamber includes a straight section and an arc-shaped section, with the arc-shaped section located above the straight section.

[0016] The heating device is located at the bottom outside the combustion chamber. A temperature sensor for detecting the heating temperature is provided at the bottom outside the combustion chamber. The heating device includes a heating tube, and a slot for inserting the heating tube is provided at the bottom outside the combustion chamber.

[0017] The burner head body has an installation cavity, and the bottom wall of the installation cavity has an air supply pipe for connecting the air inlet device. The installation cavity has an inner cylinder, and the combustion chamber is located inside the inner cylinder. The inner side of the installation cavity and the outer side of the inner cylinder form an air channel that connects to the air supply pipe. The inner cylinder has a positioning piece positioned at the top opening of the installation cavity.

[0018] The inner cylinder is provided with a liquid fuel inlet connector that connects to the combustion chamber; the liquid fuel inlet connector extends out of the furnace head body;

[0019] The side of the burner head body is provided with a mounting hole for passing through the mounting cavity and for passing through the wire. The mounting hole is located below the liquid fuel inlet connector. An insulating and heat-insulating sleeve is provided on the mounting hole, and the insulating and heat-insulating sleeve is provided with an outlet hole for connecting to the mounting hole.

[0020] The air intake device includes a fan, and a control device is configured on the outside of the burner body. The heating device is electrically connected to the wire and the control device on the outside of the burner body through the wire outlet hole. The fan and the ignition needle are respectively electrically connected to the control device so that the heating device, the fan of the air intake device and the ignition needle are linked and controlled by a control device.

[0021] A receiving plate is provided on the outer side of the main body of the furnace head;

[0022] A connecting kit for fixing the ignition needle is provided at the center of the combustion chamber, and the connecting kit passes through the bottom wall of the combustion chamber and the air supply pipe.

[0023] A flame-concentrating ring is provided above the combustion chamber.

[0024] The beneficial technical effects of this utility model are as follows:

[0025] The combustion chamber features several circumferentially spaced air intake channels on its side. The output end of the air intake device connects to these channels. Activation of the air intake device allows outside air to enter the combustion chamber along these concentric channels, creating a spiral airflow. This spiral airflow increases the contact area and mixing uniformity between the gasified liquid fuel and the outside air, improving combustion efficiency, reducing pollutant generation, and enhancing the burner's performance and environmental friendliness. It effectively solves the technical problem of incomplete combustion of gasified liquid fuel in existing burners, which easily leads to the formation of carbon black within the combustion chamber. Attached Figure Description

[0026] Figure 1 This is a three-dimensional cross-sectional structural diagram of the burner head body according to an embodiment of the present invention.

[0027] Figure 2 This is a schematic diagram of the three-dimensional cross-sectional structure of the furnace head body from another angle according to an embodiment of the present invention.

[0028] Figure 3 This is a schematic diagram of the structure in which a spiral airflow is formed in the combustion chamber of the burner body according to an embodiment of the present invention.

[0029] Figure 4 This is a schematic diagram of the exploded assembly structure of the furnace head body according to an embodiment of the present invention.

[0030] Figure 5 This is a three-dimensional structural diagram of the burner head body according to an embodiment of the present invention.

[0031] Figure 6 This is a schematic diagram of the structure of the insulating and heat-insulating sleeve in one embodiment of the present invention. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. In order to make the above-mentioned objects, features and advantages of the present application more apparent and understandable, many specific details are set forth in the following description in order to provide a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0033] See Figures 1-6 A novel burner head includes a burner head body 1 with a combustion chamber 2. The combustion chamber 2 is equipped with an ignition needle 3 for igniting liquid fuel and a heating device 4 for preheating the liquid fuel to promote its vaporization. The burner head body 1 is equipped with an air intake device 5. The side of the combustion chamber 2 is provided with several circumferentially spaced air intake channels 6 that penetrate the side of the combustion chamber 2. The input end of the air intake device 5 is connected to the outside air, and the output end of the air intake device 5 is connected to the air intake channels 6. The outside air enters the combustion chamber 2 through the air intake device 5 and the several air intake channels 6, forming a spiral airflow within the combustion chamber 2. After the liquid fuel is vaporized, it mixes with the spiral airflow to ensure complete combustion of the vaporized liquid fuel.

[0034] The combustion chamber 2 has several circumferentially spaced air intake channels 6 on its side. The output end of the air intake device 5 is connected to the air intake channels 6. When the air intake device 5 is activated, outside air enters the combustion chamber 2 along the several circumferential air intake channels 6 on the side of the combustion chamber 2, forming a spiral airflow. The spiral airflow increases the contact area and mixing uniformity with the gasified liquid fuel, allowing the gasified liquid fuel to fully contact with the outside air, improving combustion efficiency, reducing pollutant generation, and enhancing the burner's performance and environmental friendliness. This effectively solves the technical problem of incomplete combustion of liquid fuel after gasification in existing burners, which easily leads to the formation of carbon black in the combustion chamber.

[0035] The central axis of each intake channel 6 does not intersect with the central axis of the combustion chamber 2, and each intake channel 6 is laterally inclined towards the inner wall of the combustion chamber 2. Gas enters the combustion chamber 2 through each intake channel 6 and flows spirally along the inner wall of the combustion chamber 2 to form a spiral airflow.

[0036] Each intake channel 6 has its central axis not intersecting the central axis of the combustion chamber 2 and is laterally inclined towards the inner wall of the combustion chamber 2. This allows the gas entering the combustion chamber 2 through the intake channel 6 to flow precisely in a spiral pattern along the inner wall of the combustion chamber 2. This unique intake angle design ensures that the gas entering the combustion chamber 2 forms a spiral path. Compared with the traditional single-direction horizontal intake structure, this allows the vaporized liquid fuel in the combustion chamber 2 to mix fully with the outside air, further improving the uniformity and completeness of combustion after vaporization.

[0037] The air intake channel 6 includes a lower air intake channel 6.1, which is laterally inclined toward the inner wall of the combustion chamber 2, and the air outlet of the lower air intake channel 6.1 is set downward toward the bottom wall of the combustion chamber 2. When the gas enters the combustion chamber 2 along the lower air intake channel 6.1, it blows the liquid fuel located on the bottom wall of the combustion chamber 2 upward.

[0038] The lower intake passage 6.1 in the intake passage 6 is laterally inclined towards the inner wall of the combustion chamber 2, and the outlet end of the lower intake passage 6.1 is set downwards towards the bottom wall of the combustion chamber 2. When gas enters the combustion chamber 2 along the lower intake passage 6.1, the airflow direction is downwards, which can effectively blow the liquid fuel accumulated on the bottom wall of the combustion chamber 2 upwards. This solves the problem of liquid fuel easily accumulating at the bottom of the existing combustion chamber, allowing the liquid fuel on the bottom wall of the combustion chamber 2 to also participate in combustion.

[0039] The air intake channel 6 includes a middle air intake channel 6.2 and a lower air intake channel 6.1 which is horizontally inclined towards the inner wall of the combustion chamber 2.

[0040] The middle-level intake passage 6.2 creates a more reasonable airflow distribution in the central region of the combustion chamber 2 along its height. The middle-level intake passage 6.2 replenishes outside air in the central region of the combustion chamber 2 along its height, allowing the vaporized liquid fuel flowing upwards along the combustion chamber 2 to effectively mix with the outside air, ensuring complete combustion of the vaporized liquid fuel in the central part of the combustion chamber and improving overall combustion efficiency.

[0041] The air intake channel 6 includes an upper air intake channel 6.3, which is laterally inclined toward the inner wall of the combustion chamber 2, and the air outlet of the lower air intake channel 6.1 is upward toward the top opening of the combustion chamber 2.

[0042] The lower air intake channel 6.1, the middle air intake channel 6.2, and the upper air intake channel 6.3 are arranged sequentially from bottom to top along the height direction of the combustion chamber 2. Gas enters the combustion chamber 2 through the lower air intake channel 6.1, the middle air intake channel 6.2, and the upper air intake channel 6.3 respectively, forming an upward spiral airflow within the combustion chamber 2.

[0043] The upper air intake channel 6.3, together with the lower air intake channel 6.1 and the middle air intake channel 6.2, forms a complete air intake system along the height of the combustion chamber 2. The outlet of the upper air intake channel 6.3 is set upwards towards the top of the combustion chamber 2. The upper air intake channel 6.3, the middle air intake channel 6.2, and the lower air intake channel 6.1 together create a stable upward spiral airflow within the combustion chamber 2. The gas entering from the lower air intake channel 6.1 drives the fuel at the bottom of the combustion chamber 2 to move and mix. Then, when the fuel reaches the middle air intake channel 6.2 and the upper air intake channel 6.3 of the combustion chamber 2, the gas entering from the middle air intake channel 6.2 and the upper air intake channel 6.3 mixes thoroughly with the fuel in the combustion chamber 2, ensuring complete combustion after the liquid fuel is vaporized, thus improving the combustion efficiency and performance of the burner head.

[0044] A boss 2.1 is provided on the bottom wall of the combustion chamber 2. The boss 2.1 extends upward from the bottom wall of the combustion chamber 2, and a vertical ventilation channel 2.11 is provided inside the boss 2.1. The ventilation channel 2.11 is connected to the output end of the air inlet device 5. When the gas enters the ventilation channel 2.11, it blows upward on the top of the combustion chamber 2. The boss 2.1 is located in the middle position of the combustion chamber 2, and the ventilation channel 2.11 forms the middle air supply structure of the combustion chamber 2.

[0045] The boss 2.1 on the bottom wall of combustion chamber 2 and its internal ventilation channel 2.11 form the intermediate air supply structure of combustion chamber 2. After entering the ventilation channel 2.11, the gas is blown upwards, compensating for the lack of an air intake structure in the middle of the traditional combustion chamber. This ensures that the gasified liquid fuel in the middle area of ​​combustion chamber 2 receives sufficient oxygen, effectively solving the problem of incomplete combustion of fuel in the middle of the combustion chamber, ensuring uniform and complete combustion in all areas of combustion chamber 2, and improving the combustion quality of the burner head. The boss 2.1 extends upwards from the bottom wall of combustion chamber 2, effectively preventing liquid fuel from leaking out of combustion chamber 2 along the ventilation channel 2.11 of the boss 2.1.

[0046] The upper outer side of the combustion chamber 2 is also provided with several circumferentially spaced guide channels 7. The guide channels 7 are inclined on the combustion chamber 2, and the air outlet of the guide channel 7 extends upward along the top opening of the combustion chamber 2. Outside air is output to the top opening of the combustion chamber 2 through the guide channel 7, and the guide channel 7 forms the air supply structure at the top opening of the combustion chamber 2.

[0047] The guide channel 7 on the upper outer side of the combustion chamber 2 serves as an air supply structure at the top opening, through which outside air is output to the top opening of the combustion chamber 2. This provides additional air for combustion at the top of the combustion chamber 2, ensuring complete combustion of the vaporized liquid fuel at the top and preventing incomplete combustion due to insufficient oxygen. At the same time, top air supply helps maintain stable pressure within the combustion chamber, promoting stable overall combustion and improving the combustion performance and stability of the burner head.

[0048] The combustion chamber 2 includes a straight section 2.2 and an arc-shaped section 2.3, with the arc-shaped section 2.3 located above the straight section 2.2.

[0049] The straight section 2.2 facilitates the installation of structures such as the air intake channel 6, ensuring stable airflow and spiral flow; the arc-shaped section 2.3 creates a reasonable spatial transition at the top opening of the combustion chamber 2, promoting smooth gas flow within the combustion chamber, creating favorable spatial conditions for the complete combustion of the gasified liquid fuel, and improving combustion efficiency.

[0050] The heating device 4 is located at the bottom outside the combustion chamber 2. A temperature sensor 8 for detecting the heating temperature is provided at the bottom outside the combustion chamber 2. The heating device 4 includes a heating tube 4.1. A groove 9 for inserting the heating tube 4.1 is provided at the bottom outside the combustion chamber 2.

[0051] The heating device 4 is located at the bottom outer side of the combustion chamber 2, and together with the temperature sensor 8, it can precisely control the heating temperature. The heating element 4.1 is inserted into the slot 9, which can efficiently preheat the liquid fuel at the bottom of the combustion chamber 2 and promote its vaporization. Precise temperature control avoids the liquid fuel from being affected by excessively high or low temperatures, ensuring stable vaporization of the liquid fuel, providing a foundation for subsequent complete combustion, and improving the reliability of the burner and the fuel utilization rate.

[0052] The burner head body 1 is provided with an installation cavity 1.1. The bottom wall of the installation cavity 1.1 is provided with an air supply pipe 10 for connecting the air inlet device 5. The installation cavity 1.1 is provided with an inner cylinder 11. The combustion chamber 2 is located in the inner cylinder 11. The inner side of the installation cavity 1.1 and the outer side of the inner cylinder 11 form an air passage 12 that communicates with the air supply pipe 10. The inner cylinder 11 is provided with a positioning piece 13 positioned at the top opening of the installation cavity 1.1.

[0053] The inner cylinder 11 is provided with a liquid fuel inlet 14 that connects to the combustion chamber 2; the liquid fuel inlet 14 extends out of the furnace head body 1;

[0054] The burner head body 1 has a mounting cavity 1.1 on its side and a mounting hole 1.2 for passing wires through it. The mounting hole 1.2 is located below the liquid fuel inlet connector 14. An insulating heat insulation sleeve 1.3 is provided on the mounting hole 1.2. The insulating heat insulation sleeve 1.3 has a wire outlet hole 1.4 that connects to the mounting hole 1.2. Without this insulating protection for the wires, the wires are prone to short circuits after reaching high temperatures. Therefore, the insulating heat insulation sleeve 1.3 plays a role in preventing short circuits.

[0055] In this embodiment, the insulating and heat-insulating sleeve 1.3 is inserted into one end of the mounting hole 1.2 and has an interference fit with the mounting hole 1.2. Alternatively, the insulating and heat-insulating sleeve 1.3 is provided with a circular ring boss inserted into the mounting hole 1.2, and after being inserted, the circular ring boss is clamped in the mounting hole 1.2 to prevent the insulating and heat-insulating sleeve 1.3 from disengaging from the mounting hole 1.2 outward.

[0056] The air inlet device 5 includes a blower. A control device is arranged outside the furnace head body 1. The heating device 4 is electrically connected to a wire and the control device outside the furnace head body 1 through the wire outlet hole 1.4. The blower and the ignition needle 3 are respectively electrically connected to the control device, so that a linkage control is formed among the heating device 4, the blower of the air inlet device 5, and the ignition needle 3 through one control device.

[0057] A receiving plate 15 is arranged on the outer side of the furnace head body 1.

[0058] A connecting kit 16 for fixing the ignition needle 3 is arranged at the center of the combustion chamber 2. The connecting kit 16 passes through the inner bottom wall of the combustion chamber 2 and the air supply pipe 10.

[0059] A flame concentrating ring 17 is arranged above the combustion chamber 2.

[0060] Structures such as the installation cavity 1.1, the air supply pipe 10, and the inner cylinder 11 in the furnace head body 1 form a reasonable air channel 12 and a fuel feeding path. The control device realizes the linkage control of the heating device 4, the blower of the air inlet device 5, and the ignition needle 3, simplifies the operation process, and improves the use convenience. Structures such as the receiving plate 15 and the flame concentrating ring 17 further optimize the functions of the furnace head. The container is placed on the flame concentrating ring 17, the receiving plate 15 can receive the substances dripping during the heating of the container, and the flame concentrating ring 17 can concentrate the flame, improve the heat utilization rate, and overall improve the practicality and functionality of the furnace head.

[0061] After the liquid fuel enters the combustion chamber 2, after the heating device 4 is started and the preheating temperature reaches about 270 °C, the liquid fuel is preheated to promote the gasification of the liquid combustion. The temperature sensor 8 detects that the preheating temperature reaches the set value, and the control device controls the ignition needle 3 to automatically start the ignition action after the liquid fuel is preheated to ignite the gasified liquid fuel. After the liquid fuel is ignited, since the heating device 4, the blower, the temperature sensor 8, and the ignition needle 3 are respectively electrically connected to the control device to form a linkage control, the control device can adjust the heating power of the heating tube 4.1 of the heating device 4 during operation according to the fire power level, the blower power, and the detection signal of the temperature sensor. The control device includes a control circuit board and an MCU electrically connected to the control circuit board.

[0062] In this embodiment, the liquid fuel is vegetable oil.

[0063] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A novel burner head, comprising a burner head body (1) having a combustion chamber (2), wherein the combustion chamber (2) is provided with an ignition needle (3) for igniting liquid fuel and a heating device (4) for preheating the liquid fuel to promote its vaporization, and the burner head body (1) is provided with an air inlet device (5), characterized in that: The combustion chamber (2) has several circumferentially spaced air intake channels (6) on its side. The air intake device (5) has an input end connected to the outside air and an output end connected to the air intake channel (6). The outside air enters the combustion chamber (2) through the air intake device (5) and several air intake channels (6) and forms a spiral airflow in the combustion chamber (2). After the liquid fuel is vaporized, it mixes with the spiral airflow so that the vaporized liquid fuel is fully burned.

2. The novel burner head according to claim 1, characterized in that: The central axis of each intake channel (6) does not intersect with the central axis of the combustion chamber (2), and each intake channel (6) is laterally inclined towards the inner wall of the combustion chamber (2). Gas enters the combustion chamber (2) through each intake channel (6) and flows spirally along the inner wall of the combustion chamber (2) to form a spiral airflow.

3. The novel burner head according to claim 1, characterized in that: The air intake channel (6) includes a lower air intake channel (6.1). The lower air intake channel (6.1) is arranged laterally inclined towards the inner wall of the combustion chamber (2), and the air outlet of the lower air intake channel (6.1) is arranged downward towards the bottom wall of the combustion chamber (2). When the gas enters the combustion chamber (2) along the lower air intake channel (6.1), it blows the liquid fuel located on the bottom wall of the combustion chamber (2) upward.

4. The novel burner head according to claim 3, characterized in that: The air intake channel (6) includes a middle air intake channel (6.2) and a lower air intake channel (6.1) which is horizontally inclined toward the inner wall of the combustion chamber (2).

5. The novel burner head according to claim 4, characterized in that: The air intake channel (6) includes an upper air intake channel (6.3), which is laterally inclined toward the inner wall of the combustion chamber (2), and the air outlet of the lower air intake channel (6.1) is set upward toward the top opening of the combustion chamber (2). The lower air intake channel (6.1), the middle air intake channel (6.2) and the upper air intake channel (6.3) are arranged sequentially from bottom to top along the height direction of the combustion chamber (2). Gas enters the combustion chamber (2) through the lower air intake channel (6.1), the middle air intake channel (6.2) and the upper air intake channel (6.3) respectively, forming a spiral airflow that flows upward in the combustion chamber (2).

6. The novel burner head according to claim 1, characterized in that: The combustion chamber (2) has a boss (2.1) on its inner bottom wall. The boss (2.1) extends upward from the inner bottom wall of the combustion chamber (2). The boss (2.1) has a ventilation channel (2.11) that runs vertically through it. The ventilation channel (2.11) is connected to the output end of the air inlet device (5). When the gas enters the ventilation channel (2.11), it blows air upward to the top of the combustion chamber (2). The boss (2.1) is located in the middle of the combustion chamber (2). The ventilation channel (2.11) forms the middle air supply structure of the combustion chamber (2).

7. The novel burner head according to claim 1, characterized in that: The upper outer side of the combustion chamber (2) is also provided with several circumferentially spaced guide channels (7). The guide channels (7) are inclined on the combustion chamber (2), and the air outlet of the guide channels (7) extends upward along the top opening of the combustion chamber (2). Outside air is output to the top opening of the combustion chamber (2) through the guide channels (7). The guide channels (7) form the air supply structure at the top opening of the combustion chamber (2).

8. The novel burner head according to claim 1, characterized in that: The combustion chamber (2) includes a straight section (2.2) and an arc section (2.3), with the arc section (2.3) located above the straight section (2.2).

9. The novel burner head according to claim 1, characterized in that: The heating device (4) is located at the bottom outside of the combustion chamber (2). A temperature sensor (8) for detecting the heating temperature is provided at the bottom outside of the combustion chamber (2). The heating device (4) includes a heating tube (4.1). A groove (9) for inserting the heating tube (4.1) is provided at the bottom outside of the combustion chamber (2).

10. The novel burner head according to claim 1, characterized in that: The burner body (1) is provided with an installation cavity (1.1). The bottom wall of the installation cavity (1.1) is provided with an air supply pipe (10) for connecting the air inlet device (5). The installation cavity (1.1) is provided with an inner cylinder (11). The combustion chamber (2) is located in the inner cylinder (11). The inner side of the installation cavity (1.1) and the outer side of the inner cylinder (11) form an air passage (12) that connects to the air supply pipe (10). The inner cylinder (11) is provided with a positioning piece (13) positioned at the top opening of the installation cavity (1.1). The inner cylinder (11) is provided with a liquid fuel inlet connector (14) that connects to the combustion chamber (2); the liquid fuel inlet connector (14) extends out of the burner body (1); The burner body (1) has a connecting mounting cavity (1.1) on its side and a mounting hole (1.2) for passing through the wire. The mounting hole (1.2) is located below the liquid fuel feed connector (14). An insulating heat insulation sleeve (1.3) is provided on the mounting hole (1.2). The insulating heat insulation sleeve (1.3) has a wire outlet hole (1.4) connecting to the mounting hole (1.2). The air intake device (5) includes a fan, and a control device is configured on the outside of the burner body (1). The heating device (4) is electrically connected to the wire and the control device on the outside of the burner body (1) through the outlet hole (1.4). The fan and the ignition needle (3) are electrically connected to the control device respectively, so that the fan and the ignition needle (3) of the heating device (4) and the air intake device (5) are linked and controlled by a control device. A receiving plate (15) is provided on the outer side of the main body of the furnace head (1); The combustion chamber (2) is provided with a connecting kit (16) for fixing the ignition needle (3) at the center. The connecting kit (16) passes through the bottom wall of the combustion chamber (2) and the air supply pipe (10). A fire-gathering ring (17) is provided above the combustion chamber (2).

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