Auxiliary ignition structure and combustion head

Abstract

The utility model discloses an auxiliary ignition structure and a combustion head, the auxiliary ignition structure comprises a fire cylinder, the bottom end of the inner cavity of the fire cylinder is provided with a combustion disc, the combustion disc is connected with the inner wall of the fire cylinder, the combustion disc is provided with a limiting cylinder, the limiting cylinder is fixed on the combustion disc, and the limiting cylinder is used for auxiliary ignition; an ignition device is arranged in the fire tube, the ignition device comprises a flame ion probe and an ignition needle, the upper ends of the flame ion probe and the ignition needle penetrate through the fire tube, the lower ends of the flame ion probe and the ignition needle penetrate through the combustion disc, and the lower end of the ignition needle penetrates through the limiting tube to be connected with the combustion disc. According to the ignition device, the limiting barrel is arranged on the combustion disc at the bottom end of the combustion head, the bottom of the gas inlet pipeline is arranged in the limiting barrel, and the power needed by overall combustion of the ignition device is reduced by igniting gas in the limiting barrel in a small range, so that the detonation condition occurring when the combustion head is ignited is improved, and combustion in the combustion head is more stable, safer and more reliable.

Description

Technical Field

[0001] The utility model relates to the field of combustion heads, and particularly to an auxiliary ignition structure and a combustion head. Background Art

[0002] The working process of combustion head ignition mainly depends on the mixing of gas and air and the triggering of the ignition device. Gas and air enter the combustion chamber to form combustible gas, which is ignited by the ignition device (such as an ignition rod or an electric spark igniter), thus triggering a combustion reaction. In the case of manual ignition, the operator needs to light an igniter such as a match or a lighter and then bring it close to the ignition nozzle of the burner to ignite the mixed gas. In the case of automatic ignition, when the gas enters the burner, the ignition device will automatically emit an electric spark to ignite the gas. Once the mixed gas is ignited, the combustion reaction will occur in the combustion chamber. This process will generate heat and waste gas. The heat can be used for heating or other purposes, while the waste gas is discharged outdoors through the chimney.

[0003] An important challenge faced by existing combustion heads during the ignition process is that due to the presence of a large amount of mixed gas in the combustion chamber, a relatively large power is required to ensure successful ignition. However, this high-power ignition method brings a series of problems. First, the strong energy release during high-power ignition will cause the combustion head to vibrate slightly. This vibration will not only affect the stability and service life of the combustion head, but may also damage the pipelines and equipment connected to it. Especially in some precision industrial applications, the stability of the combustion head is crucial for the normal operation of the entire system. Second, high-power ignition may also lead to the occurrence of deflagration. Deflagration is a violent combustion reaction that releases a large amount of energy in a very short time and generates strong shock waves and high-temperature and high-pressure gases. This will not only cause direct damage to the combustion head, but may also trigger safety accidents, posing a serious threat to personnel and equipment. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the above deficiencies, and provides an auxiliary ignition structure and a combustion head, hoping to improve the situation that the combustion head vibrates when igniting the gas inside the combustion head, thereby affecting the stability and service life of the combustion head.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] An auxiliary ignition structure and a combustion head, comprising a fire tube. A combustion disk is provided at the bottom end of the inner cavity of the fire tube. The combustion disk is connected to the inner wall of the fire tube. A limiting cylinder is provided on the combustion disk. The limiting cylinder is fixed on the combustion disk and is used for auxiliary ignition. An ignition device is arranged inside the fire tube. The ignition device includes a flame ion probe and an ignition needle. The upper ends of the flame ion probe and the ignition needle penetrate through the fire tube, and the lower ends of the flame ion probe and the ignition needle penetrate through the combustion disk. The lower end of the ignition needle passes through the limiting cylinder and is connected to the combustion disk.

[0007] A further technical solution is that a partition structure is provided on the combustion disk. The partition structure divides the combustion disk into multiple regions, and the limiting cylinder is arranged on the partition structure.

[0008] A further technical solution is that a small gas pipeline is provided on the side wall of the fire tube. The end of the small gas pipeline is connected to the side wall of the limiting cylinder, and the small gas pipeline is used to introduce gas into the limiting cylinder.

[0009] A further technical solution is that a notch is provided at the end of the small gas pipeline, and gas enters the limiting cylinder through the notch.

[0010] A further technical solution is that a main gas pipeline is provided on the side wall of the fire tube. The main gas pipeline is annular, and the inner side wall of the main gas pipeline is in contact with the inner side wall of the fire tube.

[0011] A further technical solution is that a first chamber is arranged inside the fire tube. The first chamber is communicated with the main gas pipeline, and gas is input into the first chamber by the main gas pipeline.

[0012] A further technical solution is that the flame ion probe is used to detect the intensity of the flame in the first chamber.

[0013] A further technical solution is that the ignition needle is used to ignite the gas inside the limiting cylinder.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] By arranging a limiting cylinder on the combustion disk at the bottom end of the combustion head, placing the bottom of the gas inlet pipeline in the limiting cylinder, and igniting the gas inside the limiting cylinder in a small range, the power required for the overall combustion of the ignition device is reduced, thereby improving the deflagration situation that occurs when igniting the combustion head, and making the combustion inside the combustion head more stable, safe and reliable.

[0016] Through the small-range combustion of the mixed gas in the limiting cylinder, and then introducing a large amount of gas after the small flame burns stably, so as to make the mixed gas in the combustion head burn, reducing the power of the ignition device and saving energy at the same time. Description of the Drawings

[0017] Figure 1 It is a schematic cross-sectional structure diagram of the device of the present utility model;

[0018] Figure 2 It is a schematic structure diagram of the limiting cylinder of the present utility model;

[0019] Figure 3 For the present utility model Figure 2 An enlarged structure diagram at position A;

[0020] Figure 4 It is a schematic overall structure diagram of the present utility model;

[0021] Figure 5 It is a schematic overall cross-sectional structure diagram of the device of the present utility model.

[0022] Identification description: 1. Fire tube; 2. Main gas pipeline; 3. Small fire gas pipeline; 31. Notch; 4. Ignition device; 41. Flame ion probe; 42. Ignition needle; 5. Combustion disc; 6. Limiting cylinder; 111. First chamber. Detailed Description of the Invention

[0023] The present utility model will be further described below with reference to the drawings.

[0024] Embodiment 1.

[0025] As Figure 1 shown, an embodiment of the present utility model is an auxiliary ignition structure and a burner head, including a fire tube 1. A combustion disc 5 is provided at the bottom end of the inner cavity of the fire tube 1. The combustion disc 5 is connected to the inner wall of the fire tube 1. A limiting cylinder 6 is provided on the combustion disc 5. The limiting cylinder 6 is fixed on the combustion disc 5 and is used for auxiliary ignition. An ignition device 4 is provided inside the fire tube 1. The ignition device 4 includes a flame ion probe 41 and an ignition needle 42. The upper ends of the flame ion probe 41 and the ignition needle 42 penetrate through the fire tube 1, and the lower ends of the flame ion probe 41 and the ignition needle 42 penetrate through the combustion disc 5. The lower end of the ignition needle 42 passes through the limiting cylinder 6 and is connected to the combustion disc 5.

[0026] The fire tube 1, as the main body part of the burner head, has a hollow internal cavity for accommodating the mixture of gas and air. The combustion disk 5 is installed at the bottom of the fire tube 1 and is the main area where the mixture of gas and air burns. The combustion disk 5 is tightly connected to the inner wall of the fire tube 1 to ensure the stable combustion of the flame. The limiting cylinder 6 is fixed on the combustion disk 5 and is used to assist the ignition process. The design of the limiting cylinder 6 allows the bottom of the gas inlet pipe to be placed inside it, enabling the combustion of gas in a small range. The ignition device 4 consists of a flame ionization probe 41 and an ignition needle 42, which penetrate through the fire tube 1 and the combustion disk 5 respectively. The lower end of the ignition needle 42 passes through the limiting cylinder 6 and is connected to the combustion disk 5 to ensure that the gas in the limiting cylinder 6 can be ignited first during ignition.

[0027] Its working process is as follows: When ignition is required, the ignition device 4 is activated, and the ignition needle 42 generates an electric spark. Since the lower end of the ignition needle 42 passes through the limiting cylinder 6, the electric spark first ignites the mixture of gas and air in the limiting cylinder 6; after the gas in the limiting cylinder 6 is ignited, a stable small flame is formed, which provides a stable heat source for the subsequent combustion process; thereafter, a large amount of gas is continuously introduced into the burner head, and air is introduced from the end of the burner head far from the combustion disk 5. The introduced gas forms a large amount of mixed gas with the air in the first chamber 111, and then the mixed gas is ignited by the small flame.

[0028] By first igniting the gas in the limiting cylinder 6 and then using the small flame formed in the limiting cylinder 6 to ignite the mixed gas in the entire first chamber 111, a smooth transition of the ignition process is achieved, avoiding the deflagration situation that may occur when directly igniting the gas inside the fire tube 1; and the stable combustion of the small flame provides a stable heat source for the subsequent combustion process, making the entire combustion process safer and more reliable; by reducing the power of the ignition device, energy conservation is achieved. At the same time, the smooth ignition process also helps to reduce the emission of harmful gases.

[0029] Embodiment 2.

[0030] As Figure 2-3 shown, another embodiment of the present utility model is that a partition structure is provided on the combustion disk 5, the partition structure divides the combustion disk 5 into multiple regions, and the limiting cylinder 6 is arranged on the partition structure.

[0031] The combustion tray 5 is installed at the bottom of the fire tube 1 and is the main area for the combustion of the gas and air mixture. The combustion tray 5 is provided with a partition structure, which divides the combustion tray 5 into multiple independent combustion areas; the partition structure divides the combustion surface of the combustion tray 5 into several areas, facilitating better gas combustion in each area. This design can improve the combustion efficiency and stability and reduce the direct impact of the flame on the combustion tray; the limiting cylinder 6 is arranged on the partition structure, and its position can be adjusted according to actual needs. The limiting cylinder 6 is used to assist ignition. The bottom of the gas inlet pipe is placed inside it, and by igniting the gas inside the limiting cylinder 6 in a small range, the power required for the overall combustion of the ignition device can be reduced.

[0032] By dividing the combustion tray into multiple areas through the partition structure, each area burns more fully, the gas can be utilized more fully, and the combustion efficiency can be improved; and by arranging the limiting cylinder on the partition structure, the function of assisting ignition is realized, making the ignition process more stable and avoiding the deflagration situation that may occur when directly igniting the combustion tray; the position of the limiting cylinder can change along with the change of the position of the ignition needle, and it can be stably fixed only by connecting with the partition structure.

[0033] Embodiment 3.

[0034] As Figure 4 shown, another embodiment of the present utility model is that a small-fire gas pipeline 3 is provided on the side wall of the fire tube 1, and the end of the small-fire gas pipeline 3 is connected to the side wall of the limiting cylinder 6, and the small-fire gas pipeline 3 is used to introduce gas into the limiting cylinder 6.

[0035] The small-fire gas pipeline 3 is located on the side wall of the fire tube 1, and its end is connected to the side wall of the limiting cylinder 6. The small-fire gas pipeline 3 is used to introduce gas into the limiting cylinder 6 to ensure that the gas inside the limiting cylinder 6 can be quickly ignited during ignition, and the gas introduced by the small-fire gas pipeline 3 is less, which is conducive to the small-range ignition work of the small-fire gas pipeline 3 and is conducive to controlling the unnecessary energy consumption loss during the ignition process.

[0036] The limiting cylinder 6 is arranged on the partition structure and is connected to the small-fire gas pipeline 3. The limiting cylinder 6 is used to assist ignition and realizes the combustion of a small range of gas by receiving the gas introduced by the small-fire gas pipeline 3.

[0037] Before ignition, a small amount of gas is introduced into the limit cylinder 6 through the small-fire gas pipeline 3. The gas enters the limit cylinder 6 through the small-fire gas pipeline 3, providing a stable gas source for the ignition process. When ignition is required, the ignition device 4 is activated, and the ignition needle 42 generates an electric spark. Since the lower end of the ignition needle 42 passes through the limit cylinder 6, the electric spark quickly ignites the gas that has been introduced into the limit cylinder 6, forming a small flame. The small flame in the limit cylinder 6 burns stably, providing a stable heat source for the subsequent combustion process. As the small flame burns stably, gas is continuously introduced into the first chamber 111, and then the gas-air mixture on the entire combustion tray 5 is ignited. At this time, the burner head enters the normal operating state.

[0038] By directly introducing gas into the limit cylinder 6, the rapid ignition of a small range of gas is achieved, reducing the power required for the ignition needle. The design of the small-fire gas pipeline 3 enables more precise control of the gas supply, thereby achieving more precise regulation of the combustion process. The combined use of the small-fire gas pipeline 3 and the limit cylinder 6 makes the ignition process more controllable and safe, avoiding the deflagration that may occur when directly igniting the combustion tray. By precisely controlling the gas supply and the combustion process, more efficient combustion can be achieved, reducing energy waste and harmful gas emissions.

[0039] Embodiment 4.

[0040] As Figure 3 shown, another embodiment of the present utility model is that a notch 31 is provided at the end of the small-fire gas pipeline 3, and the gas enters the limit cylinder 6 through the notch 31.

[0041] The small-fire gas pipeline 3 is located on the outer side wall of the fire cylinder 1, and a notch 31 is provided at its bottom end. The design of the notch 31 enables the gas to directly and evenly enter the inside of the limit cylinder 6 and mix with air to form a combustible gas mixture.

[0042] Its working principle is as follows: The gas enters through the small-fire gas pipeline 3 and flows out at the notch 31 at its bottom end, directly entering the inside of the limit cylinder 6. The gas is evenly mixed with air inside the limit cylinder 6. At the same time, since the density of the gas is less than that of air, the air moves downward inside the fire cylinder 1, and the gas will rise. Thus, the air and gas inside the fire cylinder 1 are mixed to form a combustible gas.

[0043] And because a notch 31 is provided at the bottom of the small-fire gas pipeline 3, the gas first enters the inside of the limit cylinder 6. By igniting the mixed gas inside the limit cylinder 6, a combustion reaction is triggered, and this combustion reaction is a small-scale combustion.

[0044] By providing a notch 31 at the bottom end of the small-fire gas pipeline 3, the gas can directly and evenly enter the inside of the limit cylinder 6 in the combustion area. This design improves the gas mixing effect and combustion efficiency, making the combustion process more stable and efficient.

[0045] Example 5

[0046] As Figure 4-5 shown, another embodiment of the present utility model is that a main gas pipeline 2 is provided on the side wall of the fire tube 1. The main gas pipeline 2 is annular, and the inner side wall of the main gas pipeline 2 is in contact with the inner side wall of the fire tube 1.

[0047] The part of the main gas pipeline 2 located outside the side wall of the fire tube 1 is a tubular structure, and the part of the main gas pipeline 2 located inside the fire tube 1 is annular and is located on the side wall of the fire tube 1. The inner side wall of the main gas pipeline 2 is in close contact with the inner side wall of the fire tube 1 to ensure that the gas can be evenly distributed inside the fire tube 1.

[0048] A large amount of gas enters the inside of the fire tube 1 through the main gas pipeline 2 and mixes with air to form combustible gas. Since the main gas pipeline 2 is annular and its inner side wall is in close contact with the inner side wall of the fire tube 1, the gas can be evenly distributed inside the fire tube 1, providing a stable gas source for the combustion process; when ignition is required, the ignition device 4 is activated, and the ignition needle 42 generates an electric spark to ignite the gas and air mixture in the limit cylinder 6.

[0049] Since the gas is evenly distributed inside the fire tube 1 through the main gas pipeline 2, the gas and air mixture on the combustion tray 5 can burn evenly and stably, and a flame is formed on the combustion tray 5.

[0050] Through the design of the annular main gas pipeline 2, the gas can be evenly distributed inside the fire tube 1, enabling the gas and air mixture on the combustion tray 5 to burn evenly and stably, improving the combustion efficiency; since the gas is evenly distributed, the flame on the combustion tray 5 can remain stable, avoiding the situation of flame fluttering or extinguishing, improving the safety and comfort of use; the efficient combustion process helps to reduce energy waste and harmful gas emissions, meeting the requirements of energy conservation and environmental protection.

[0051] Example 6

[0052] As Figure 5 shown, another embodiment of the present utility model is that a first chamber 111 is provided inside the fire tube 1. The first chamber 111 is communicated with the main gas pipeline 2, and the gas is input into the first chamber 111 by the main gas pipeline 2.

[0053] The first chamber 111 is located inside the fire tube 1, and the main gas pipeline 2 is connected to the first chamber 111 to ensure that the gas can smoothly enter the first chamber 111. At the other end of the first chamber 111, there is a combustion area where the gas and air can mix to form combustible gas, and the combustible gas can be ignited in the combustion area.

[0054] The main gas pipeline 2 is in a circular or linear shape and is located on the side wall of the fire tube 1. One end of the main gas pipeline 2 is connected to a gas source, and the other end is communicated with the first chamber 111. The main gas pipeline 2 is responsible for transporting gas from the gas source to the first chamber 111. A large amount of gas is supplied into the first chamber 111 by the main gas pipeline 2. After this large amount of gas is mixed with air and ignited by an ignition device, the burner head can be ignited.

[0055] The gas is transported into the first chamber 111 through the main gas pipeline 2. Since the first chamber 111 is a relatively enclosed space, the gas can form a certain pressure therein, thereby ensuring that the gas can enter the combustion area stably and evenly; when the gas enters the combustion area, it is mixed with air and ignited. Since the gas has formed a stable pressure in the first chamber 111, the combustion process is more uniform and stable. The flame is formed in the combustion area and releases heat to the outside through the opening of the fire tube 1.

[0056] By designing the first chamber 111, the gas can form a stable pressure in a relatively enclosed space, thereby ensuring that the combustion process is more uniform and stable. This helps to improve the combustion efficiency and reduce the waste of energy; since the gas has formed a stable pressure in the first chamber 111, the gas flow rate entering the combustion area is more stable, and the flame is also more stable. This helps to improve the safety and comfort of use; the efficient combustion process helps to reduce the emission of harmful gases, meeting the requirements of energy conservation and environmental protection. At the same time, the stable flame also helps to improve the energy utilization efficiency.

[0057] Embodiment 7.

[0058] Another embodiment of the present utility model is that the flame ionization probe 41 is used to detect the intensity of the flame in the first chamber 111.

[0059] This embodiment introduces a burner head design with a flame ionization probe. A flame ionization probe 41 is installed in the first chamber 111 of the fire tube 1 to monitor the intensity of the flame in the first chamber 111 in real time. This design not only improves the monitoring and control capabilities of the combustion process but also enhances the safety and reliability of the burner head.

[0060] The flame ionization probe 41 is located in the first chamber 111 and is used to monitor the intensity of the flame in real time. The flame ionization probe 41 can sense the change in the ion concentration in the flame, thereby judging the intensity of the flame.

[0061] The control system is connected to the flame ionization probe 41, receives the signal sent by the flame ionization probe 41, and adjusts the working states of the gas supply and the ignition device according to the signal to achieve precise control of the combustion process.

[0062] The flame ionization probe 41 monitors the intensity of the flame in the first chamber 111 in real time. When the flame intensity reaches the set value, the flame ionization probe 41 sends a signal to the control system; the control system determines whether the combustion state is normal according to the received signal. If the flame intensity is too weak or too strong, the control system will adjust the working state of the gas supply or the ignition device to ensure the stability and safety of the combustion process.

[0063] The flame ionization probe 41 can monitor the intensity of the flame in real time, providing reliable data support for the monitoring and control of the combustion process; the control system can achieve precise control of the combustion process according to the signal of the flame ionization probe 41, ensuring the stability and safety of combustion; through real-time monitoring and precise control, safety problems caused by unstable flames can be avoided, improving the safety of the burner head.

[0064] Embodiment 8.

[0065] Another embodiment of the present utility model is that the ignition pin 42 is used to ignite the gas inside the limit cylinder 6.

[0066] The ignition pin 42 passes through the fire tube 1 and the combustion disk 5 and extends into the limit cylinder 6 to ignite the gas in the limit cylinder 6. Gas is supplied to the limit cylinder 6 through the small-fire gas pipeline 3. Since the gas outlet end of the small-fire gas pipeline 3 is located in the limit cylinder 6, the gas input through the small-fire gas pipeline 3 can be more concentratedly input into the limit cylinder 6. When the ignition pin 42 is ignited, the mixed gas in the limit cylinder 6 is first ignited to form a small flame, and continuous combustion occurs, providing a stable heat source for the subsequent combustion process of the burner head.

[0067] The design of the ignition pin 42 provides a relatively stable heat source for the combustion of the burner head. The mixed gas in the entire burner head is ignited through a small-range flame, which can not only prevent deflagration and vibration when igniting the burner head; but also reduce the ignition power of the ignition pin by igniting the mixed gas in the first chamber with a small flame, thereby ensuring the stability and service life of the burner head during ignition.

[0068] Embodiment 9.

[0069] Based on the foregoing embodiments, the present utility model can also be arranged as follows. In order to reduce the energy consumption of the ignition pin for ignition, the ignition pin can be replaced with an ignition coil.

[0070] Its working process is as follows: First, the primary coil is energized. When the switch device of the ignition system connects the primary coil (low-voltage coil), current starts to flow through the low-voltage coil. This current causes the iron core to be magnetized, thereby generating a strong magnetic field around it. The magnetic field energy is stored in the iron core.

[0071] Low-voltage coil power-off: Subsequently, when the switch device disconnects the circuit of the primary coil, the magnetic field of the primary coil will disappear rapidly. This process will cause the iron core to demagnetize, and at the same time, the magnetic lines of force will rapidly contract and cut the secondary coil (high-voltage coil). This cutting process will cause a very high voltage to be induced in the secondary coil.

[0072] High-voltage electricity is transmitted to the spark plug: The high voltage induced in the secondary coil will ultimately be transmitted to the spark plug. This high voltage will cause the spark plug to generate a spark and break down the combustible mixture. This process is a key step in igniting the combustible mixture, and it will generate a huge gas thrust to push the piston to do work.

[0073] The ignition coil can store and release energy repeatedly at different frequencies according to the different rotational speeds of the engine. This means that regardless of the operating conditions of the engine, the ignition coil can provide sufficient ignition energy to ensure the normal operation of the combustion head.

[0074] Embodiment 10.

[0075] Based on the foregoing embodiments, the present utility model can also adopt the following setting method to effectively reduce the power required for ignition. By optimizing the structure of the first chamber 111 and the ratio of the mixture gas, the energy required for ignition can be reduced; for example, improving the shape and size of the combustion chamber to make the mixture gas more evenly distributed, thereby increasing the ignition success rate; at the same time, reasonably controlling the gas and air flow rates to make the ratio of the mixture gas reach the optimal state can also effectively reduce the power required for ignition.

[0076] When referring to "one embodiment", "another embodiment", "the embodiment", etc. in this specification, it means that the specific features, structures or characteristics described in connection with that embodiment are included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in connection with any one embodiment, it is intended that the implementation of such feature, structure or characteristic in combination with other embodiments also falls within the scope of the present utility model.

[0077] Although the present utility model has been described herein with reference to multiple illustrative embodiments of the present utility model, it should be understood that those skilled in the art can design many other modifications and implementation manners, which will fall within the scope of the principles and spirit disclosed in this application. More specifically, within the scope of the disclosure, drawings and claims of this application, various variations and improvements can be made to the components and / or layout of the subject combination layout. In addition to the variations and improvements made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. An auxiliary ignition structure and a combustion head, comprising a fire tube (1), characterized in that: A combustion disk (5) is provided at the bottom end of the inner cavity of the fire tube (1), the combustion disk (5) is connected to the inner wall of the fire tube (1), a limiting cylinder (6) is provided on the combustion disk (5), the limiting cylinder (6) is fixed on the combustion disk (5), and the limiting cylinder (6) is used to assist ignition; An ignition device (4) is provided inside the fire tube (1), and the ignition device (4) comprises a flame ionization probe (41) and an ignition needle (42). The upper ends of the flame ionization probe (41) and the ignition needle (42) penetrate the fire tube (1), and the lower ends of the flame ionization probe (41) and the ignition needle (42) penetrate the combustion disk (5). The lower end of the ignition needle (42) penetrates the limiting tube (6) and is connected to the combustion disk (5).

2. An auxiliary ignition structure and a combustion head according to claim 1, characterized in that: The combustion disk (5) is provided with a partition structure, the partition structure divides the combustion disk (5) into a plurality of areas, and the limiting cylinder (6) is arranged on the partition structure.

3. The auxiliary ignition structure and combustion head according to claim 1, characterized in that: A low-fire gas pipeline (3) is provided on the side wall of the fire tube (1), the end of the low-fire gas pipeline (3) is connected to the side wall of the limiting tube (6), and the low-fire gas pipeline (3) is used to pass gas into the limiting tube (6).

4. An auxiliary ignition structure and a combustion head according to claim 3, characterized in that: A notch (31) is provided at the end of the low-fire gas pipeline (3), and the gas enters the limiting cylinder (6) through the notch (31).

5. The auxiliary ignition structure and combustion head according to claim 1, characterized in that: A main gas pipeline (2) is provided on the side wall of the fire tube (1); the main gas pipeline (2) is annular, and the inner wall of the main gas pipeline (2) is in contact with the inner wall of the fire tube (1).

6. An auxiliary ignition structure and a combustion head according to claim 5, characterized in that: A first chamber (111) is provided inside the fire tube (1), and the first chamber (111) is connected to a main gas pipeline (2), and the main gas pipeline (2) inputs gas into the first chamber (111).

7. An auxiliary ignition structure and a combustion head according to claim 6, characterized in that: The flame ionization probe (41) is used to detect the intensity of the flame in the first chamber (111).

8. The auxiliary ignition structure and combustion head according to claim 1, characterized in that: The ignition needle (42) is used to ignite the fuel gas inside the limiting cylinder (6).

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