A two-stage fire oil nozzle device

Abstract

This utility model relates to the field of combustion technology and discloses a two-stage ignition fuel nozzle device, including a fuel nozzle mounting base. A flow regulating valve is located at the rear end of the fuel nozzle mounting base, and fuel nozzles are fixedly mounted on both sides inside the mounting base. This utility model uses the structural design of the fuel nozzle mounting base to connect two fuel nozzles separately. The flow regulating valve can control the fuel flow to each of the two fuel nozzles. When a low flame is needed, the fuel flow to one or both fuel nozzles is reduced; when a high flame is needed, the fuel flow is increased. After ignition by the ignition needle, a flame stabilizer plate stabilizes the flame. Air from the air intake pipe mixes thoroughly with the atomized fuel. A heat shield prevents heat loss and protects surrounding components. The operation of this series of mechanisms drives the switching between high and low flames, thus enabling the device to control two fuel nozzles separately, achieving the purpose of switching between high and low flames. It ensures complete combustion, eliminates fuel odor, and is suitable for various applications requiring heating.

Description

Technical Field

[0001] This utility model relates to the field of combustion technology, and in particular to a two-stage fuel nozzle device. Background Technology

[0002] With the development of energy technology, the requirements for combustion efficiency, environmental protection and controllability of fuel combustion devices are getting higher and higher. This two-stage fuel nozzle device adapts to the needs of energy technology development by continuously optimizing material and structural design when processing fuel combustion.

[0003] However, in actual use, fuel injector devices with similar structures still have many defects, such as poor fuel atomization, uneven fuel-air mixing, and unstable ignition, resulting in low combustion efficiency. At the same time, existing fuel injector devices may lack the ability to precisely control the fuel flow of each injector, resulting in inflexible switching between high and low flames. Therefore, it is necessary to design a two-stage ignition fuel injector device. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a two-stage ignition fuel nozzle device.

[0005] This utility model is achieved by the following technical solution: a two-stage ignition fuel nozzle device, including a fuel nozzle mounting base, a flow regulating valve is provided at the rear end of the fuel nozzle mounting base, fuel nozzles are fixedly installed on both sides inside the fuel nozzle mounting base, a flame stabilizer is fixedly installed on the outer surface of the fuel nozzle mounting base, an ignition needle is provided at the top of the fuel nozzle, and an air intake pipe is provided on one side of the ignition needle.

[0006] As a further improvement to the above solution, a flow regulating valve is fixedly installed on the outer surface of the fuel injector mounting base, and an oil inlet pipe is fixedly installed at the input end of the flow regulating valve.

[0007] By using the above technical solution, the flow control valve is installed on the outer surface of the fuel injector mounting base and the fuel inlet pipe is connected to the input end of the flow control valve. This structural design makes the transmission path of fuel from the fuel inlet pipe to the flow control valve and then to the fuel injector mounting base more direct and compact. This helps to reduce energy loss and leakage risk during fuel transmission, and at the same time facilitates centralized management of fuel flow control.

[0008] As a further improvement to the above solution, the fuel injector mounting base is made of nickel-based alloy, the valve core inside the flow regulating valve is made of ceramic material, and the outer surface of the oil inlet pipe is coated with polytetrafluoroethylene (PTFE).

[0009] Through the above technical solutions, the high temperature resistance, corrosion resistance and high strength of nickel-based alloys ensure that the fuel injector mounting base can stably support the connected components, such as flow control valves and fuel injectors, in complex combustion environments. It can withstand the heat generated by high-temperature fuel and combustion, preventing structural damage caused by corrosion or insufficient strength, thereby extending the service life of the device.

[0010] As a further improvement to the above solution, the outer surface of the fuel injector is threaded with a heat insulation cover, the heat insulation cover is made of metal, and the outer surface of the heat insulation cover is fitted with ceramic fiber material.

[0011] Through the above technical solutions, the metal material itself has a certain heat insulation capacity, and the extremely low thermal conductivity of the ceramic fiber material further enhances the heat insulation effect. During the combustion process, this structure can effectively reduce heat loss, protect surrounding components from high temperature, and improve the overall safety and reliability of the device.

[0012] As a further improvement to the above solution, the flame stabilizer is disposed on the outer surface of the fuel injector, the flame stabilizer is made of aluminum alloy, and the fuel injector is made of porous ceramic material.

[0013] Through the above technical solutions, aluminum alloys have good thermal conductivity and certain strength, which can maintain structural stability in high-temperature environments, effectively prevent the flame from shaking or going out during combustion, ensure combustion stability, and thus improve combustion efficiency.

[0014] As a further improvement to the above solution, a pulse ignition controller is fixedly installed on the outer part of the fuel injector mounting base, and the output end of the pulse ignition controller is fixedly connected to an ignition needle.

[0015] As a further improvement to the above solution, an air regulating valve is fixedly installed on the side of the outer surface of the fuel injector mounting base away from the pulse ignition controller, and an air intake pipe is fixedly connected to the output end of the air regulating valve.

[0016] Through the above technical solutions, the air regulating valve can precisely regulate the air flow rate, so that air and fuel are mixed in a suitable ratio. A suitable air-fuel ratio helps to achieve complete combustion of fuel, improve combustion efficiency, and reduce energy waste and pollutant emissions.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention reduces fuel flow resistance and prevents fuel from adhering to the pipe wall by applying a polytetrafluoroethylene (PTFE) coating to the outer surface of the fuel inlet pipe. Fuel flows smoothly into the flow regulating valve, where a ceramic valve core precisely controls the fuel flow. The fuel then enters the porous ceramic fuel injectors on both sides of the injector mounting base and atomizes into small droplets. A pulse ignition controller generates a high-voltage pulse signal to ignite the atomized fuel with an electric spark from the ignition needle. A flame stabilizer plate stabilizes the flame shape, and an air regulating valve regulates the air flow, allowing air to enter through the air intake pipe and mix with the atomized fuel. The operation of this series of mechanisms enables efficient fuel atomization, precise supply, stable ignition, stable combustion, and proper mixing of air and fuel, thereby achieving complete fuel combustion, reducing pollutant emissions, and improving the operational stability of the device.

[0019] This invention utilizes the structural design of the fuel injector mounting base to connect two fuel injectors separately. A flow regulating valve controls the fuel flow to each injector. When a low flame is needed, the fuel flow to one or both injectors is reduced; when a high flame is needed, the fuel flow is increased. After ignition by the ignition needle, a flame stabilizer plate stabilizes the flame. Air from the air intake pipe mixes thoroughly with the atomized fuel. A heat shield prevents heat loss and protects surrounding components. The operation of this series of mechanisms enables the switching between high and low flames, thus allowing the device to control two fuel injectors separately, achieving the purpose of switching between high and low flames. It ensures complete combustion, eliminates the smell of fuel, and is suitable for various applications requiring heating. Attached Figure Description

[0020] Figure 1 This is a top view of the overall structure of this utility model;

[0021] Figure 2 This is a side view of the overall structure of this utility model;

[0022] Figure 3 This is a front view of the overall structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the flame stabilizer structure of this utility model.

[0024] Explanation of key symbols:

[0025] 1. Fuel injector mounting bracket; 2. Flow control valve; 3. Fuel inlet pipe; 4. Fuel injector; 5. Heat shield; 6. Flame stabilizer; 7. Pulse ignition controller; 8. Ignition needle; 9. Air regulating valve; 10. Air intake pipe. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] Example:

[0028] Please combine Figure 1-4 This embodiment of a two-stage ignition fuel nozzle device includes a fuel nozzle mounting base 1, a flow regulating valve 2 is provided at the rear end of the fuel nozzle mounting base 1, fuel nozzles 4 are fixedly installed on both sides inside the fuel nozzle mounting base 1, a flame stabilizer 6 is fixedly installed on the outer surface of the fuel nozzle mounting base 1, an ignition needle 8 is provided at the top of the fuel nozzle 4, and an air intake pipe 10 is provided on one side of the ignition needle 8.

[0029] A flow regulating valve 2 is fixedly installed on the outer surface of the fuel injector mounting base 1, and an oil inlet pipe 3 is fixedly installed at the input end of the flow regulating valve 2.

[0030] Fuel enters the system through the fuel inlet pipe 3, and after being regulated by the flow regulating valve 2, the fuel enters the fuel injectors 4 on both sides inside the fuel injector mounting seat 1.

[0031] The fuel injector mounting base 1 is made of nickel-based alloy, the valve core inside the flow regulating valve 2 is made of ceramic material, and the outer surface of the oil inlet pipe 3 is coated with polytetrafluoroethylene (PTFE).

[0032] The outer surface of the fuel inlet pipe 3 is coated with a polytetrafluoroethylene (PTFE) coating. This coating can reduce the flow resistance of fuel in the pipe and prevent fuel from adhering to the pipe wall. The flow regulating valve 2 has a ceramic valve core. The ceramic valve core can accurately control the fuel flow. Because ceramic has high wear resistance and chemical stability, it can stably regulate the fuel flow for a long time.

[0033] The outer surface of the fuel injector 4 is threaded with a heat shield 5, which is made of metal and has a ceramic fiber material on its outer surface.

[0034] The outer surface of the fuel injector 4 is threaded with a heat shield 5. The heat shield 5 is made of metal and its outer surface is covered with ceramic fiber material. During combustion, the heat shield 5 can reduce heat loss and protect surrounding components from high temperature. The metal heat shield 5 itself has a certain heat insulation capacity, and the ceramic fiber material further enhances the heat insulation effect. Since ceramic fiber has an extremely low thermal conductivity, it can effectively prevent heat from being transferred outward.

[0035] The flame stabilizer 6 is set on the outer surface of the fuel injector 4. The flame stabilizer 6 is made of aluminum alloy, and the fuel injector 4 is made of porous ceramic material.

[0036] A pulse ignition controller 7 is fixedly installed on the outer part of the fuel injector mounting bracket 1, and an ignition needle 8 is fixedly connected to the output end of the pulse ignition controller 7.

[0037] An air regulating valve 9 is fixedly installed on the side of the outer surface of the fuel injector mounting base 1 away from the pulse ignition controller 7, and an air intake pipe 10 is fixedly connected to the output end of the air regulating valve 9.

[0038] The implementation principle of a two-stage ignition fuel nozzle device in this application embodiment is as follows: fuel enters the system through the fuel inlet pipe 3. The outer surface of the fuel inlet pipe 3 is coated with a polytetrafluoroethylene (PTFE) coating. This coating can reduce the flow resistance of fuel in the pipe and prevent fuel from adhering to the pipe wall. The fuel in the fuel inlet pipe 3 flows into the flow regulating valve 2. The flow regulating valve 2 is installed on the outer surface of the fuel injector mounting seat 1. Its internal valve core is made of ceramic material. The ceramic valve core can accurately control the fuel flow. Because ceramic has high wear resistance and chemical stability, it can stably regulate the fuel flow for a long time.

[0039] The fuel injector mounting base 1 is made of nickel-based alloy, which has the characteristics of high temperature resistance, corrosion resistance and high strength. It can stably support components such as flow regulating valve 2 and fuel injector 4, ensuring the overall stability of the fuel supply system. After being regulated by flow regulating valve 2, the fuel enters the fuel injector 4 on both sides inside the fuel injector mounting base 1. The fuel injector 4 is made of porous ceramic material, which helps fuel atomization, making the fuel form finer droplets, preparing for subsequent efficient combustion.

[0040] A pulse ignition controller 7 is fixedly installed on the outer part of the fuel injector mounting base 1. The pulse ignition controller 7 generates a high-voltage pulse signal. The output end of the pulse ignition controller 7 is fixedly connected to the ignition needle 8. The ignition needle 8 is located on the top of the fuel injector 4. When the pulse ignition controller 7 is working, the ignition needle 8 generates an electric spark. The electric spark is used to ignite the atomized fuel sprayed from the fuel injector 4. A flame stabilizer 6 is provided on the outer surface of the fuel injector 4. The flame stabilizer 6 is made of aluminum alloy. After the flame is generated, the flame stabilizer 6 plays a role in stabilizing the shape of the flame, preventing the flame from shaking or going out during combustion, and ensuring the stability of combustion.

[0041] An air regulating valve 9 is fixedly installed on the side of the outer surface of the fuel injector mounting base 1 away from the pulse ignition controller 7. The output end of the air regulating valve 9 is fixedly connected to the air intake pipe 10. Air enters the device through the air intake pipe 10. The air intake pipe 10 and the ignition needle 8 are located on the same side of the fuel injector 4. In this way, during ignition and combustion, the air can be mixed with the atomized fuel in a timely manner. The air regulating valve 9 can adjust the air flow rate so that the air and fuel are mixed in a suitable ratio to achieve the best combustion effect.

[0042] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A two-stage fire fuel nozzle apparatus, characterized by, The device includes a fuel injector mounting base (1), a flow regulating valve (2) is provided at the rear end of the fuel injector mounting base (1), fuel injectors (4) are fixedly installed on both sides inside the fuel injector mounting base (1), a flame stabilizer (6) is fixedly installed on the outer surface of the fuel injector mounting base (1), an ignition needle (8) is provided at the top of the fuel injector (4), and an air intake pipe (10) is provided on one side of the ignition needle (8).

2. A two-stage fire fuel nozzle apparatus as described in claim 1, wherein: A flow regulating valve (2) is fixedly installed on the outer surface of the fuel injector mounting base (1), and an oil inlet pipe (3) is fixedly installed at the input end of the flow regulating valve (2).

3. A two-stage fire fuel nozzle apparatus as claimed in claim 2, wherein: The fuel injector mounting base (1) is made of nickel-based alloy, the valve core inside the flow regulating valve (2) is made of ceramic material, and the outer surface of the oil inlet pipe (3) is coated with polytetrafluoroethylene (PTFE).

4. The two-stage ignition fuel nozzle device as described in claim 1, characterized in that: The outer surface of the fuel injector (4) is threaded with a heat insulation cover (5), the heat insulation cover (5) is made of metal, and the outer surface of the heat insulation cover (5) is covered with ceramic fiber material.

5. The two-stage ignition fuel nozzle device as described in claim 1, characterized in that: The flame stabilizer (6) is disposed on the outer surface of the fuel injector (4). The flame stabilizer (6) is made of aluminum alloy, and the fuel injector (4) is made of porous ceramic material.

6. The two-stage ignition fuel nozzle device as described in claim 1, characterized in that: The outer part of the fuel injector mounting base (1) is fixedly installed with a pulse ignition controller (7), and the output end of the pulse ignition controller (7) is fixedly connected to an ignition needle (8).

7. A two-stage ignition fuel nozzle device as described in claim 6, characterized in that: An air regulating valve (9) is fixedly installed on the side of the outer surface of the fuel injector mounting base (1) away from the pulse ignition controller (7), and an air intake pipe (10) is fixedly connected to the output end of the air regulating valve (9).

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