Combustion head structure with ever-burning fire keeping function and combustion head
By setting independent air and gas intake pipes and fire cylinders in the combustion head, the dual functions of maintaining the open flame and burning of the fire are achieved, which solves the problem of insufficient power and inability to quickly enter the high-power working state when the combustion head is restarted after shutdown, and improves combustion efficiency and safety.
Patent Information
- Application Number
- CN202421566667.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-04
AI Technical Summary
After the existing combustion head is shut down, due to the drop in the equipment temperature, it requires a large power during restarting and cannot quickly enter the high-power operating state.
A combustion head structure with the function of maintaining the eternal open flame is designed. By setting up independent air and gas intake pipes and fire tubes, the combustible gas in the small fire pipe is ignited to form a stable eternal open flame, which not only reduces the ignition power, but also maintains continuous combustion at low power.
It realizes the rapid start of the combustion head and the rapid entry of the high-power operating state, reducing energy losses and improving combustion efficiency and safety.
Smart Images
Figure CN222824352U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of combustion heads, in particular to a combustion head structure with a function of maintaining a long flame and a combustion head. Background Art
[0002] The combustion head is one of the core components of the burner. Its main function is to mix gas and air and then burn them to release heat energy. In industrial production, burners are widely used in various heating equipment, boilers, heat treatment furnaces and other equipment. As a key component of the burner, the combustion head has a very important influence on the combustion efficiency and thermal efficiency. A good combustion head can fully mix gas and air, making the combustion process more complete and stable, thereby improving the efficiency of energy utilization.
[0003] Currently, there are many scenarios such as heating and heat preservation of metal parts and rapid response of steam furnaces to produce steam, which require the burner to have a stable low-power long-lasting flame maintenance function. When the existing combustion head equipment is shut down, the equipment can maintain a certain temperature so that the equipment can quickly enter a high-power working state.
[0004] However, currently after the burner head equipment is shut down, due to the temperature drop of the equipment, it requires a large power to restart, and the equipment cannot quickly enter a high-power working state after restarting. Utility Model Content
[0005] The purpose of the utility model is to solve the above-mentioned shortcomings and provide a burner head structure and a burner head with a long-open flame keeping function. It is expected to improve the problem that the burner head needs to restart the equipment when it is shut down, resulting in large energy loss, and the burner head cannot quickly enter a high-power working state when it is started.
[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0007] 14. The burner head structure as claimed in claim 13, wherein the burner head has a first air inlet pipe and a second air inlet pipe connected to the burner head. The burner head has a first air inlet pipe connected to the burner head. The burner head has a first air inlet pipe connected to the burner head. The burner head has a first air inlet pipe connected to the burner head. The burner head has a first air inlet pipe connected to the burner head. The burner head has a first air inlet pipe connected to the burner head. The burner head has a first air inlet pipe connected to the burner head. The burner head has a second ...
[0008] A further technical solution is that an ignition needle is also provided in the small fire pipe, and the ignition needle is used to ignite the mixed gas formed by the fuel gas and air in the small fire pipe.
[0009] A further technical solution is that a connecting portion is provided at one end of the first gas pipeline away from the fire tube, and the connecting portion is used to connect an external gas pipeline to input gas into the fire tube.
[0010] A further technical solution is that a connecting portion is provided at one end of the second gas pipeline away from the second air inlet pipe, and the connecting portion is used to connect to an external gas pipeline to input gas into the small fire pipeline.
[0011] A further technical solution is a combustion head, wherein the fire barrel includes a first fire barrel and a second fire barrel, the first fire barrel is arranged perpendicular to the second fire barrel, and the inner cavity of the first fire barrel is connected to the inner cavity of the second fire barrel; a large fire probe is provided in the second fire barrel, and the large fire probe passes through the first fire barrel and the second fire barrel.
[0012] A further technical solution is that the first fire tube is parallel to the second air inlet pipe, and the small fire pipe is arranged at 90 degrees to the first fire tube.
[0013] A further technical solution is that a combustion disk is provided at the bottom end of the second fire tube, and the bottom of the combustion disk is connected to the negative electrode of the small fire ignition needle and the negative electrode of the large fire probe.
[0014] A further technical solution is that a boiler mounting flange is provided on the outer side of the second fire tube, and the boiler mounting flange is used to be connected to the boiler body.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] The utility model provides independent air and gas intake pipes and a fire cylinder, and ignites the combustible gas in the small fire pipe through an ignition needle, which is beneficial to the rapid start of the combustion flame; at the same time, the flame in the small fire pipe is spread to the entire front of the combustion head, and the combustible gas in front of the entire combustion head is ignited to form a stable large fire flame, which not only reduces the ignition power and makes the ignition more stable and safe, but also can maintain low-power continuous combustion in the form of a long-open flame, meeting the needs of special application scenarios for low-power insulation and avoiding the secondary start-up process of the burner, and quickly entering a high-power working state. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the overall structure of the combustion head of the utility model;
[0018] Figure 2 This is a schematic diagram of the small fire pipeline structure of the utility model;
[0019] Figure 3 This is a top view of the combustion head of the utility model;
[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the combustion head of the utility model.
[0021] Label description: 111, fire tube; 1, first fire tube; 2, second fire tube; 41, first air inlet pipe; 42, second air inlet pipe; 51, first gas pipeline; 52, second gas pipeline; 6, small fire pipeline; 71, small fire ignition needle; 72, high fire probe; 73, ignition needle; 8, combustion plate; 9, boiler mounting flange. DETAILED DESCRIPTION
[0022] The utility model will be further described below in conjunction with the accompanying drawings.
[0023] Embodiment 1, as Figure 1 As shown, one embodiment of the utility model is a combustion head structure with a long-open flame keeping function, comprising a fire tube 111, the fire tube 111 is used for externally connecting a combustion disk 8, a first air inlet pipe 41 is provided at the front end of the fire tube 111, the first air inlet pipe 41 is used to input air into the fire tube 111, and the air is guided to the combustion disk 8 by the fire tube 111, and the first air inlet pipe 41 is in a closed state when the combustion head is not working, and when air needs to be input into the fire tube 111 through the first air inlet pipe 41, the pipe inlet of the first air inlet pipe 41 is opened; a first gas pipeline 51 is provided on the side wall of the fire tube 111, and the first gas pipeline 51 is used to pass gas into the fire tube 111;
[0024] A small fire pipe 6 is provided inside the fire tube 111, the end of the small fire pipe 6 extends to the corresponding position of the combustion disk 8, the head end of the small fire pipe 6 passes through the fire tube 111, a second air intake pipe 42 is provided on one side of the fire tube 111, the end of the second air intake pipe 42 is connected to the small fire pipe 6, and the second air intake pipe 42 is used to input air into the small fire pipe 6; a second gas pipeline 52 is provided on the side wall of the second air intake pipe 42, and the second air intake pipe 42 is used to input gas into the second air intake pipe 42, and the gas is introduced into the small fire pipe 6 by the second air intake pipe 42;
[0025] A small fire ignition needle 71 is provided in the small fire pipe 6 . The small fire ignition needle 71 penetrates the small fire pipe 6 . The small fire ignition needle 71 is used to extend to the combustion disk 8 on the fire tube 111 .
[0026] This embodiment introduces a combustion head structure with a function of maintaining a long-fire flame, which is characterized in that the dual functions of maintaining a long-fire flame and burning a large fire are achieved by providing a fire tube 111 and a small fire pipe 6, as well as corresponding gas pipes and air pipes. This structure not only improves the combustion efficiency, but also ensures the safety and stability of the combustion process.
[0027] The fire tube 111 has a combustion chamber formed inside, and a first air inlet pipe 41 is provided at the end thereof for inputting air into the fire tube 111 to support the combustion process of the large fire. A first gas pipeline 51 is provided on the side wall of the fire tube 111 for inputting gas into the fire tube 111, where the gas is mixed with air to form a combustible gas for combustion.
[0028] The small fire pipe 6 runs through the fire tube 111 and is located inside the fire tube 111. The small fire pipe 6 is designed to keep the flame in the pipe burning continuously, that is, to keep the flame burning continuously.
[0029] The part of the small fire pipe 6 located outside the fire tube 111 is provided with a second air inlet pipe 42, which is used to input air into the small fire pipe 6 to support the burning of the long open flame. The side wall of the second air inlet pipe 42 is provided with a second gas pipeline 52, which is used to input gas into the small fire pipe 6 and maintain the continuous burning of the long open flame after mixing with air.
[0030] The small fire ignition needle 71 runs through the small fire pipe 6. The function of the small fire ignition needle 71 is to monitor the combustion state of the long flame and adjust the supply of gas and air as needed to maintain the stable combustion of the long flame.
[0031] The working process is as follows: when the burner head does not need to be started, in order to maintain the dimensions of the burner head, gas and air are input into the small fire pipe 6 through the second gas pipe 52 and the second air inlet pipe 42 to ignite and maintain the burning of the long flame. When the burner head needs to be started, gas and air are input into the fire tube 111 through the first gas pipe 51 and the first air inlet pipe 41 to carry out the main combustion, i.e., the large fire combustion process.
[0032] The small fire ignition needle 71 monitors the combustion state of the long flame in real time, and adjusts the supply of gas and air as needed to ensure the stable combustion of the long flame.
[0033] The burner head structure realizes the function of maintaining a long-lasting flame by setting a small fire pipe and a small fire ignition needle, thereby improving the combustion efficiency. The stable combustion of the long-lasting flame ensures the safety and stability of the combustion process. The burner head equipment maintains low-power continuous combustion in the form of a long-lasting flame, meeting the needs of special application scenarios for low-power insulation and avoiding the secondary start-up process of the burner, and quickly entering a high-power working state.
[0034] By providing two air inlets and a small fire pipe 6, the dual functions of main combustion and long-fire maintenance are realized, with high combustion efficiency and safety. The structure is suitable for various occasions requiring long-term stable combustion and has high practicality and application value.
[0035] Embodiment 2, as Figure 2 As shown, another embodiment of the utility model is that the first fire tube 1 is parallel to the second air inlet pipe 42, and the small fire pipe 6 is arranged at 90 degrees to the first fire tube 1.
[0036] This embodiment further improves the design of the combustion head structure on the basis of embodiment 1. The main improvement lies in the angle setting between the small fire pipe 6 and the first fire tube 1 and the second air inlet pipe 42, making the entire combustion head structure more compact and reasonable, while improving the combustion efficiency and safety.
[0037] The small fire pipe 6 is arranged at 90 degrees to the first fire tube 1. Such a design enables the small fire pipe 6 to be better embedded in the first fire tube 1, thereby reducing the space occupied by the overall structure.
[0038] The portion of the small fire pipe 6 located outside the first fire tube 1 is provided with a second air inlet pipe 42 for inputting air into the small fire pipe 6. In this embodiment, the small fire pipe 6 and the second air inlet pipe 42 are also arranged at 90 degrees. Such a design allows air to enter the small fire pipe 6 more smoothly, thereby improving the mixing effect of air and gas. A second gas pipe 52 is provided on the side wall of the second air inlet pipe 42 for inputting gas into the small fire pipe 6.
[0039] The 90° arrangement between the small fire pipe 6 and the first fire tube 1 and the second air inlet pipe 42 makes the entire combustion head structure more compact, reduces the occupied space, and is easy to install and arrange. The 90° arrangement between the small fire pipe 6 and the second air inlet pipe 42 allows air to enter the small fire pipe 6 more smoothly, improves the mixing effect of air and gas, and thus improves the combustion efficiency. This design also improves the safety and stability of the combustion process and reduces the potential safety hazards caused by unreasonable structure.
[0040] By improving the angle setting between the small fire pipe 6 and the first fire tube 1 and the second air inlet pipe 42, the combustion head structure is made more compact and reasonable, the floor space is reduced, and it can be better connected to other equipment, while improving combustion efficiency and safety.
[0041] Embodiment 3, as Figure 3 As shown, another embodiment of the utility model is that an ignition needle 73 is further provided in the small fire pipe 6, and the ignition needle 73 is used to ignite the mixed gas formed by the fuel gas and air in the small fire pipe 6.
[0042] The working process is as follows: the mixed gas is ignited in the small fire pipe 6 by the ignition needle 73, so that the combustible mixed gas in the small fire pipe 6 continues to burn in a small range. At this time, since there is no combustible gas in the second fire tube 2, the combustion will not spread to the second fire tube 2. After the long-fire burns stably, the small-fire ignition needle 71 monitors its combustion state in real time to ensure the continuity and stability of the long-fire.
[0043] By providing the ignition needle 73 in the small fire pipe 6, the pilot flame can be ignited more quickly and reliably, thereby improving the starting efficiency of the burner head. The ignition needle 73 and the small fire ignition needle 71 are used together to ensure that the pilot flame maintains a stable combustion state after starting, thereby improving the safety and stability of the combustion process.
[0044] This embodiment achieves faster and more reliable ignition of the long flame by adding an ignition needle in the small fire pipe, thereby improving the starting efficiency of the combustion head and the safety and stability of the combustion process. At the same time, the power required for the ignition needle 73 to ignite the combustible gas in the small fire pipe 6 is smaller than the power required to ignite the combustible gas in the entire combustion head, thereby achieving the effect of reducing energy consumption.
[0045] Embodiment 4, as Figure 3 As shown, another embodiment of the present invention is that a connecting portion is provided at one end of the first gas pipeline 51 away from the fire tube 111 , and the connecting portion is used for connecting an external gas pipeline to input gas into the fire tube 111 .
[0046] In particular, the connection portion may be a threaded connection or a flange or other structural connection.
[0047] During the installation process, the first gas pipeline 51 is connected to the external gas pipeline through the connection part interface. This connection method is simple and reliable, and can quickly realize the input of gas.
[0048] After the connection is completed, air is input into the fire tube 111 through the first air inlet pipe 41 , and gas is input into the first fire tube 1 through the first gas pipeline 51 , and the gas and air are mixed in the fire tube 111 .
[0049] The design of the connection interface simplifies the installation process and improves installation efficiency. The connection has high sealing and stability, which can ensure the safety and reliability of gas during transmission.
[0050] By providing a connection interface at the end of the first gas pipeline 51 away from the fire tube 111, a quick and reliable connection with an external gas pipeline is achieved. This design simplifies the installation process and improves the stability and safety of the overall structure. At the same time, the design has high versatility and flexibility and is suitable for various types of gas pipeline connections.
[0051] Embodiment 5, as Figure 3 As shown, another embodiment of the present invention is that a connecting portion is provided at one end of the second gas pipeline 52 away from the second air inlet pipe 42 , and the connecting portion is used to connect an external gas pipeline to input gas into the small fire pipeline 6 .
[0052] In particular, the connection portion may be a threaded connection or a flange or other structural connection.
[0053] A connecting portion is provided at one end of the second gas pipeline 52 away from the second air inlet pipe 42. The connecting portion is used to connect with an external gas pipeline to ensure that the gas can be stably and reliably input into the small fire pipeline 6.
[0054] During the installation process, the second gas pipeline 52 is connected to the external gas pipeline through the connection interface. This connection method is simple and reliable, and can quickly realize the input of gas. After the connection is completed, air is input into the small fire pipeline 6 through the second air inlet pipe 42, and gas is input into the small fire pipeline 6 through the second gas pipeline 52. The gas and air are mixed in the small fire pipeline 6 and ignited to burn the long-fire. At the same time, the combustion state of the long-fire is monitored in real time through the small fire ignition needle 71 to ensure the continuity and stability of the long-fire.
[0055] The design of the connection interface allows the small fire pipe to be easily connected to the gas pipeline, simplifying the installation process. The connection has high sealing and stability, which can ensure the safety and reliability of gas during transmission.
[0056] By providing a connection interface at the end of the second gas pipeline away from the second gas inlet pipe, a quick and reliable connection between the small fire pipeline and the external gas pipeline is achieved. This design simplifies the installation process and improves the stability and safety of the overall structure. At the same time, this design improves the flexibility and versatility of the burner head structure and has a wide range of application prospects.
[0057] Embodiment 6, as Figure 4 As shown, another embodiment of the utility model is a combustion head, wherein the fire tube 111 comprises a first fire tube 1 and a second fire tube 2, wherein the first fire tube 1 is arranged perpendicular to the second fire tube 2, and the inner cavity of the first fire tube 1 is connected to the inner cavity of the second fire tube 2;
[0058] A large fire probe 72 is provided in the second fire tube 2 , and the large fire probe 72 passes through the first fire tube 1 and the second fire tube 2 .
[0059] Among them, the mixed combustible gas in the first fire tube 1 is used as the fuel for the main combustion and enters the second fire tube 2 through the first fire tube 1; and the combustible gas in the small fire pipe 6 is used as the fuel for the long-lasting flame and is retained in the small fire pipe 6.
[0060] The fire probe 72 runs through the first fire tube 1 and the second fire tube 2, and is used to monitor and control the combustion state of the main combustion chamber. The fire probe 72 can sense the temperature, flame state and other parameters in the main combustion chamber in real time, and adjust the supply of gas and air as needed to ensure the stability and efficiency of combustion.
[0061] The working process is as follows: the small fire pipe 6 inputs gas into the small fire pipe 6 through the second air inlet pipe 42 and the second gas pipe 52, and the gas is mixed in the small fire pipe 6 to form a combustible gas. The combustible gas in the small fire pipe 6 is ignited by the ignition needle 73, and a long-lasting flame is formed in the small fire pipe 6. Since the combustible gas has not been introduced into the first fire tube 1, the combustion will not spread to the first fire tube 1, and the combustion only exists in the first fire tube 1. The long-lasting flame can not only maintain a certain temperature of the combustion head and reduce the power required by the ignition needle, but also ignite the combustible gas in the first fire tube 1 when there is combustible gas in the first fire tube 1.
[0062] Then the gas enters the main combustion chamber of the first fire tube 1 through the first gas pipeline 51, and the air enters the main combustion chamber through the first air intake pipe 41. The gas and air are mixed in the first fire tube 1 to form a combustible gas. At the same time, since the first gas pipeline 51 and the first air intake pipe 41 continue to input gas into the first fire tube 1, the mixed combustible gas enters the second fire tube 2. The fire probe 72 monitors the combustion state of the main combustion chamber in real time, including parameters such as flame temperature and flame height. According to the monitoring results, the fire probe 72 can adjust the supply of gas and air to maintain the stability and efficiency of combustion.
[0063] The fire probe 72 passes through the first fire tube 1 and the second fire tube 2, and can monitor the flame combustion status in the first fire tube 1 and the second fire tube 2 at the same time, thereby improving the accuracy and stability of combustion control.
[0064] Since the power required by the burner head for flame combustion is usually relatively large, the common power is between 2,000 kilowatts and 7,000 kilowatts or even higher. In order to better control the power, this embodiment divides the burner head into two combustion chambers, and sets an ignition needle 73 in the small fire pipe 6. By igniting the mixed combustible gas in the small fire pipe 6, the power required by the ignition needle 73 can be reduced, thereby reducing the power required by the burner head. Then, gas is introduced into the second fire tube 2, and the flame in the small fire pipe 6 enters the second fire tube 2 through the combustion disk 8, thereby igniting the gas in the second fire tube 2.
[0065] Embodiment 7, another embodiment of the utility model is that a combustion disk 8 is provided at the bottom end of the second fire tube 2, and the bottom of the combustion disk 8 is connected to the negative electrode of the small fire ignition needle 71 and the negative electrode of the large fire probe 72.
[0066] Based on the double-fire tube burner head, this embodiment improves the bottom structure of the second fire tube, adds a combustion disk, and connects the negative poles of the small fire ignition needle and the large fire probe to the bottom of the combustion disk. This design aims to improve the stability and safety of combustion and optimize combustion efficiency.
[0067] The combustion disk 8 is located at the bottom of the second fire tube 2 and is used to diffuse and decompose the combustible gas. During the combustion process, it is responsible for spraying out the gas mixed with fuel and air and generating a combustible flame. Through the structural design of the combustion disk, the mixed gas can be effectively diffused and decomposed into a combustible flame.
[0068] The high fire probe 72 passes through the first fire tube 1 and the second fire tube 2 to monitor and control the combustion state of the main combustion chamber; the low fire ignition needle 71 passes through the low fire pipe 6 to monitor and control the combustion state of the long flame. The negative pole of the low fire ignition needle 71 and the negative pole of the high fire probe 72 are both connected to the bottom of the combustion disk 8. This design ensures that when an abnormal situation occurs, such as flame extinguishment or unstable combustion, feedback can be quickly provided through the circuit system of the probe and corresponding measures can be taken.
[0069] Its working process is: the large fire probe 72 and the small fire ignition needle 71 respectively monitor the combustion status of the first fire tube 1 and the pilot flame in real time, including parameters such as flame temperature and flame height. Through the negative connection, these probes form a circuit system with the combustion disk 8, which can quickly respond to any combustion abnormality.
[0070] According to the monitoring results of the probe, the burner head can adjust the supply of gas and air to maintain the stability and efficiency of combustion. If abnormal conditions such as flame extinguishing or unstable combustion occur, the burner head can immediately take measures such as cutting off the gas supply to prevent safety accidents.
[0071] The design of the combustion disk improves the stability of the flame and the combustion efficiency, making the combustion more uniform and complete. The design of the probe negative electrode connected to the bottom of the combustion disk enhances the safety performance of the combustion head, and can quickly respond to any combustion abnormality and take corresponding measures.
[0072] Embodiment 8, another embodiment of the utility model is that the bottom of the small fire pipe 6 is connected to the combustion disk 8.
[0073] The combustion disk 8 is located at the bottom of the combustion head and is provided with a small hole. When there is combustible gas in the first fire tube 1, the combustion disk 8 will diffuse the flame in the small fire pipe 6 into the first fire tube 1, and then ignite the combustible gas in the first fire tube 1. At the same time, the large fire probe 72 is used to monitor the combustion situation in the first fire tube 1 in real time.
[0074] The combustion disk 8 diffuses the flame of the small fire pipe 6 into the first fire tube 1 and ignites the combustible gas in the first fire tube 1, thereby reducing the power of the ignition needle 73 and utilizing the flame in the small fire pipe 6 to ignite the combustible gas in the first fire tube 1; at the same time, the long-lasting flame in the small fire pipe 6 can also be used to insulate the combustion head, thereby maintaining a stable temperature of the combustion head, which is conducive to the frequent starting and stopping of the combustion head.
[0075] Embodiment 9, another embodiment of the utility model is that a boiler mounting flange 9 is provided on the outer side of the second fire tube 2, and the boiler mounting flange 9 is used to be connected to the boiler body.
[0076] The boiler mounting flange 9 can better connect the burner head with other accessories, and the flange can have a higher connection stability, thereby reducing the possibility of leakage caused by loose pipe interfaces, thereby effectively protecting the environment and personal safety. The flange connection can also make the connection part easier to disassemble and replace, reducing damage to the connection equipment itself.
[0077] Embodiment 10: Based on the above embodiments, the present invention can also adopt the following configuration: in order to improve the applicability of the burner head, variable nozzles are arranged on the air and gas inlet pipes.
[0078] The variable nozzle can adjust the size and shape of the flame according to changes in combustion requirements. By adjusting the opening or angle of the variable nozzle, the mixture ratio of gas and air can be controlled to optimize combustion efficiency.
[0079] By providing a variable nozzle, the burner head can be adapted to occasions with different heating requirements, thereby improving the applicability of the burner head.
[0080] Embodiment 11, based on the above embodiments, the present invention can also adopt the following configuration: in order to reduce the pollution of the exhaust gas emitted by the combustion head to the environment, a recovery channel is set at the gas discharge port of the combustion head.
[0081] The recovery channel is connected to the exhaust port of the burner head to introduce the exhaust gas into the recovery device, which processes the exhaust gas through filtering and purification. The waste heat generated by the burner head can be reused to preheat the gas or preheat the air. This method can not only improve energy utilization efficiency, but also reduce energy consumption and operating costs, and reduce the risk of environmental pollution.
[0082] The "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment 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 a specific feature, structure or characteristic is described in conjunction with any embodiment, it is claimed that the feature, structure or characteristic can be realized in conjunction with other embodiments and also falls within the scope of the utility model.
[0083] Although the utility model is described herein with reference to a plurality of illustrative embodiments of the utility model, it should be understood that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the disclosure, drawings, and claims of the present application, various modifications and improvements may be made to the components and / or layout of the subject combination layout. In addition to modifications and improvements to the components and / or layout, other uses will also be apparent to those skilled in the art.
Claims
1. A combustion head structure with a function of maintaining a long-lasting flame, comprising a fire tube (111), wherein the fire tube (111) is used to connect an external combustion disk (8), and is characterized in that: A first air inlet pipe (41) is provided at the front end of the fire tube (111), and the first air inlet pipe (41) is used to input air into the fire tube (111), and the fire tube (111) guides the air to the combustion disk (8); A first gas pipeline (51) is provided on a side wall of the fire tube (111), and the first gas pipeline (51) is used to supply gas to the fire tube (111); A small fire pipe (6) is provided inside the fire tube (111), the end of the small fire pipe (6) extends to a position corresponding to the combustion disk (8), the head end of the small fire pipe (6) passes through the fire tube (111), a second air intake pipe (42) is provided on one side of the fire tube (111), the end of the second air intake pipe (42) is connected to the small fire pipe (6), and the second air intake pipe (42) is used to input air into the small fire pipe (6); A second gas pipeline (52) is provided on the side wall of the second gas inlet pipe (42), and the second gas pipeline (52) is used to input gas into the second gas inlet pipe (42), and the gas is introduced into the small-fire pipe (6) by the second gas inlet pipe (42); A small fire ignition needle (71) is provided in the small fire pipe (6), and the small fire ignition needle (71) passes through the small fire pipe (6). The small fire ignition needle (71) is used to extend to the combustion disk (8) on the fire tube (111).
2. A combustion head structure with a long-open flame holding function according to claim 1, characterized in that: An ignition needle (73) is also provided in the small fire pipe (6), and the ignition needle (73) is used to ignite a mixed gas formed by the fuel gas and air in the small fire pipe (6).
3. A combustion head structure with a long-open flame holding function according to claim 1, characterized in that: A connection portion is provided at one end of the first gas pipeline (51) away from the fire tube (111), and the connection portion is used to connect to an external gas pipeline to input gas into the fire tube (111).
4. A burner head structure with a long-open flame holding function according to claim 1, characterized in that: An end of the second gas pipeline (52) away from the second gas inlet pipe (42) is provided with a connection portion, the connection portion being used to connect to an external gas pipeline to input gas into the low-fire pipeline (6).
5. A burner head, using the burner head structure with a long flame keeping function as claimed in any one of claims 1 to 4, characterized in that: The fire tube (111) comprises a first fire tube (1) and a second fire tube (2), wherein the first fire tube (1) is arranged perpendicular to the second fire tube (2), and the inner cavity of the first fire tube (1) is communicated with the inner cavity of the second fire tube (2); A large fire probe (72) is provided in the second fire tube (2), and the large fire probe (72) passes through the first fire tube (1) and the second fire tube (2).
6. A burner head according to claim 5, characterized in that: The first fire tube (1) is parallel to the second air inlet pipe (42), and the small fire pipe (6) is arranged at 90 degrees to the first fire tube (1).
7. A burner head according to claim 5, characterized in that: A combustion disk (8) is provided at the bottom end of the second fire tube (2), and the bottom of the combustion disk (8) is connected to the negative electrode of the small fire ignition needle (71) and the negative electrode of the large fire probe (72).
8. A burner head according to claim 5, characterized in that: A boiler mounting flange (9) is provided on the outer side of the second fire tube (2), and the boiler mounting flange (9) is used to be connected to the boiler body.