Windproof flame-stabilizing burner structure of a flame-throwing gun

Abstract

The utility model discloses a kind of windproof stable flame flame gun burner structure, it is related to flame gun burner technical field, including: burner main body, wind shield, anti-interference control system, the burner main body includes shell, annular airflow guide groove, porous ceramic plate, the shell one end is fixedly connected with fuel injection seat, and fuel pipe is equipped in the shell inside, fuel pipe is connected in fuel input end and fuel output end, the annular airflow guide groove is fixedly connected in one end of the fuel injection seat, the porous ceramic plate is fixedly connected in the top of annular airflow guide groove;The wind shield is trumpet-shaped, and detachably connected on the outside of the burner main body, the inside of the wind shield is equipped with several annular wind baffle, the several annular wind baffles are arranged along the inner wall of the wind shield axial, the outside of the wind shield is evenly provided with openwork heat dissipation hole. The present application has the function of dynamically adjusting fuel injection angle and intensity.

Description

Technical Field

[0001] This utility model belongs to the technical field of flame gun burners, specifically relating to a windproof and flame-stabilizing flame gun burner structure. Background Technology

[0002] Flamethrowers, due to their high-temperature flame characteristics, are widely used in welding, metal processing, outdoor ignition, cooking, and many other fields. After rigorous examination, the following prior art patents are identified as being closest to this application: CN219102986U describes an electronically ignited, windproof liquefied gas flamethrower. This device adjusts the extension length of the protective shield according to the wind force of the environment, increasing the coverage area and protecting the base of the flame from the wind. However, this device cannot accurately match wind changes in real time, requiring frequent adjustments to the shield length, which affects efficiency. This application can match wind changes in real time. CN209013232U describes an ignition device for an unmanned aerial vehicle (UAV) flamethrower. Through a windproof tube and multi-nozzle design, it effectively solves the problem of flame extinguishing easily when the UAV flamethrower is operating at high altitudes. However, the fuel injection angle and intensity are relatively fixed, making it impossible to guarantee stable ignition and continuous flame propagation in strong winds. This application can achieve stable ignition in strong winds. Utility Model Content

[0003] The purpose of this utility model is to provide a windproof and flame-stabilizing flame gun burner structure to solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, the specific technical solution of this utility model is as follows: A windproof and flame-stabilizing flame torch burner structure includes: a burner body, the burner body including a shell, an annular airflow guide groove, and a porous ceramic plate, a fuel injection seat fixedly connected to one end of the shell, and a fuel passage pipe provided inside the shell, the fuel passage pipe being connected to a fuel input end and a fuel output end, the annular airflow guide groove being fixedly connected to one end of the fuel injection seat, and the porous ceramic plate being fixedly connected to the top end of the annular airflow guide groove; The wind shield is horn-shaped and detachably connected to the outside of the burner body. The wind shield has several annular wind baffles on its inner side, which are axially arranged along the inner wall of the wind shield. The wind shield has evenly spaced perforated heat dissipation holes on its outer side. An anti-interference control system is provided, comprising a wind sensor, a controller, and a fuel injection adjustment assembly. The wind sensor is installed inside the windproof cover to collect wind speed and wind direction data. The fuel injection adjustment assembly is connected to the fuel injection base to adjust the fuel injection angle and intensity. The controller is electrically connected to the wind sensor and the fuel injection adjustment assembly, respectively. The controller is configured to receive wind speed and wind direction data from the wind sensor.

[0005] Optionally, the fuel injection adjustment assembly includes a rotating platform, a drive device, a limiting block, and a flow regulating valve. The rotating platform is rotatably connected to the fuel injection seat, and an injection port is provided on the rotating platform. One end of the fuel pipe passes through the rotating platform and communicates with the injection port to deliver fuel. The drive device is located on the burner body and at one end of the injection port. The output shaft of the drive device is circumferentially fixedly connected to the rotating platform to provide power for adjusting the injection port angle. The limiting block is located on the burner body at one end of the injection port and on both sides of the rotating platform to prevent the injection port deflection angle from exceeding a preset range. The drive device and the flow regulating valve are electrically connected to a controller, which is configured as follows: The dynamic control of the drive device based on wind speed and direction causes the rotating table to deflect in the opposite direction of the wind, thereby adjusting the deflection angle of the spray nozzle. At the same time, the opening size of the flow regulating valve is adjusted to control the spray intensity.

[0006] Optionally, the annular airflow guide groove is designed in a spiral shape, and its inner wall is provided with guide ribs for guiding air to form a swirling flow and mix with fuel.

[0007] Optionally, the porous ceramic plate is made of high-temperature resistant ceramic material, with air vents of 0.5-1.5mm in diameter evenly distributed on the plate body, and a flame passage opening coaxial with the injection nozzle is opened in the center of the plate body, and the size of the flame passage opening is larger than the size of the flame ejected from the injection nozzle.

[0008] Optionally, the wind sensor has a measurement range of 0-10 m / s, a measurement accuracy of ±0.2 m / s, a response time ≤50 ms, and a wind direction measurement accuracy of ±5°. Optionally, the spacing between adjacent annular windbreak rings in the plurality of annular windbreak rings is 10-15 mm. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram of the anti-interference control system structure according to an embodiment of this application; Figure 3This is a schematic diagram of the internal structure of an embodiment of this application; the markings in the figure are as follows: 1. Burner body; 11. Fuel injection seat; 12. Annular airflow guide groove; 13. Porous ceramic plate; 14. Outer shell; 2. Wind shield; 21. Annular wind deflector; 22. Hollowed-out heat dissipation hole; 3. Anti-interference control system; 31. Wind force sensor; 32. Fuel injection adjustment component; 321. Limit block; 322. Flow regulating valve; 33. Rotary table; 34. Injection port. Detailed Implementation

[0010] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0011] This application discloses a windproof and flame-stabilizing flame gun burner structure.

[0012] Refer to the image Figure 1-3 As shown, this embodiment provides a windproof and flame-stabilizing flame gun burner structure, including a burner body 1, a windproof cover 2, and an anti-interference control system 3.

[0013] The burner body 1 is the core combustion component, including a shell 14, an annular airflow guide groove 12, and a porous ceramic plate 13. The shell 14 is made of high-temperature resistant stainless steel. A fuel injection seat 11 is welded to the upper end of the shell 14. A fuel pipe is located inside the shell 14, connecting the fuel inlet and outlet for transporting combustion fuel. The annular airflow guide groove 12 is welded to one end of the fuel injection seat 11 and features a spiral design. Its inner wall has guide ribs that spirally distribute along the inner wall of the annular airflow guide groove to guide air into a swirling flow, ensuring thorough mixing of air and fuel. The porous ceramic plate 13 is bonded and fixed to the top of the annular airflow guide groove 12. It is made of high-temperature resistant ceramic material and has evenly distributed vent holes with a diameter of 0.5-1.5 mm to assist in complete fuel combustion and stabilize the flame base.

[0014] The wind shield 2 is trumpet-shaped and detachably connected to the outside of the burner body 1. In this embodiment, the wind shield 2 is detachably connected to the annular groove of the outer shell 14 via three elastic buckles distributed circumferentially on its inner side. No tools are required for disassembly and assembly, facilitating subsequent cleaning of the annular wind deflector rings or replacement of internal components. Three to four annular wind deflector rings 21 are arranged axially along the inner side of the wind shield 2, with a spacing of 10-15mm between adjacent rings. This multi-level shielding reduces the impact of wind on the core flame area. The outer side of the wind shield 2 has evenly distributed perforated heat dissipation holes 22 to dissipate excess heat generated during combustion, preventing component damage due to high temperatures.

[0015] The anti-interference control system 3 is used to dynamically adapt to changes in the wind field, including a wind sensor 31, a controller, and a fuel injection adjustment assembly 32. The wind sensor 31 is installed in the middle of the inner side of the wind shield 2, located at the perforated heat dissipation hole 22, and is used to collect wind speed and wind direction data in real time. Its measurement range is 0-10 m / s, measurement accuracy is ±0.2 m / s, response time is ≤50 ms, and wind direction measurement accuracy is ±5°, ensuring the accuracy and timeliness of wind field data acquisition. In this embodiment, the connection lines between the controller, the wind sensor 31, and the drive device use shielded twisted-pair cables. The controller has a built-in EMC filter circuit to suppress electromagnetic interference generated by the ignition high-voltage pulse.

[0016] The fuel injection regulating assembly 32 is connected to the fuel injection seat 11 and is used to adjust the fuel injection angle and intensity. It includes a rotating platform 33, a drive unit, a limit block 321, and a flow regulating valve 322. The rotating platform 33 is coupled to the shaft of the fuel injection seat 11 via a pair of deep groove ball bearings. The bearings use high-temperature resistant grease to ensure smooth rotation. An injection port 34 is provided on the rotating platform 33, and an annular airflow guide groove 12 is coaxially fitted onto the outside of the injection port 34. The fuel output end of the fuel pipe passes through the rotating platform 33 and communicates with the injection port 34 to deliver fuel; a high-temperature resistant sealing gasket is fitted at the penetration point. In this embodiment, the drive device adopts a dual stepper motor, which is set on the burner body 1 and located at one end of the injection port 34. Through coordinated drive, the angle adjustment accuracy (±0.5°) and output torque are improved, ensuring that the angle of the injection port 34 is stable and does not deviate under strong wind. The drive device is circumferentially fixedly connected to the rotating table 33 to provide power for the angle adjustment of the injection port 34. The dual stepper motor can achieve 360° rotation, but is limited to a specified angle by the limiting block 321.

[0017] The limiting block 321 is located at one end of the burner body 1 at the injection port 34 and on both sides of the rotating platform 33. In this embodiment, the limiting block is configured to limit the deflection angle of the rotating platform to ±30°. The flow regulating valve 322 is an adjustable solenoid valve, located inside the housing 14, and connected in series with the fuel pipe to regulate the injection intensity.

[0018] In this embodiment, the porous ceramic plate 13 has a flame passage opening at its center that corresponds to the injection port 34. The injected flame passes through the flame passage opening, which is elliptical in shape. The major axis is twice the diameter of the injection port, and the minor axis is 1.5 times the diameter of the injection port. This ensures that the flame can still pass through unobstructed when the injection port is deflected by ±30°, thus avoiding contact with the ceramic plate and causing local high-temperature damage.

[0019] The wind sensor 31, the drive unit, and the flow regulating valve 322 are electrically connected to the controller, which is configured as follows: The system receives wind speed and wind direction data from the wind sensor 31, dynamically controls the fuel injection parameters of the fuel injection adjustment component 32 based on the wind speed and wind direction, controls the drive device to drive the injection port 34 of the rotating table 33 to deflect in a direction that matches the wind direction, and adjusts the opening size of the flow regulating valve 322 to control the injection intensity, thereby achieving windproof and flame-stabilized operation.

[0020] The wind direction reference coordinate system is based on the initial 0° direction (flame ejection direction) of the injection nozzle 34. The wind direction angle collected by the wind sensor 31 corresponds inversely to the deflection angle of the injection nozzle 34 (e.g., if the wind direction angle is θ, the deflection angle of the injection nozzle is θ+180°), ensuring that the injection nozzle always faces the upwind direction. The reference injection intensity corresponds to a fuel flow rate of 8 L / min. The above description is only a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

Claims

1. A windproof and flame-stabilizing flame gun burner structure, characterized in that, include: The burner body (1) includes a shell (14), an annular airflow guide groove (12), and a porous ceramic plate (13). One end of the shell (14) is fixedly connected to a fuel injection seat (11), and a fuel pipe is provided inside the shell (14). The fuel pipe is connected to the fuel input end and the fuel output end. The annular airflow guide groove (12) is fixedly connected to one end of the fuel injection seat (11), and the porous ceramic plate (13) is fixedly connected to the top end of the annular airflow guide groove (12). The wind shield (2) is horn-shaped and detachably connected to the outside of the burner body (1). The wind shield (2) has several annular wind baffles (21) on its inner side. The several annular wind baffles (21) are arranged axially along the inner wall of the wind shield (2). The wind shield (2) has hollowed-out heat dissipation holes (22) evenly opened on its outer side. An anti-interference control system (3) includes a wind sensor (31), a controller, and a fuel injection adjustment assembly (32). The wind sensor (31) is installed inside the wind shield (2) and is used to collect wind speed data and wind direction data. The fuel injection adjustment assembly (32) is connected to the fuel injection seat (11) and is used to adjust the fuel injection angle and intensity. The controller is electrically connected to the wind sensor (31) and the fuel injection adjustment assembly (32) respectively; The controller is configured to receive wind speed and wind direction data from the wind sensor (31).

2. The windproof and flame-stabilizing flame gun burner structure according to claim 1, characterized in that, The fuel injection adjustment assembly (32) includes a rotating platform (33), a drive device, a limiting block (321), and a flow regulating valve (322). The rotating platform (33) is rotatably connected to the fuel injection seat (11), and an injection port (34) is provided on the rotating platform (33). One end of the fuel pipe passes through the rotating platform (33) and communicates with the injection port (34) to transport fuel. The drive device is located on the burner body (1) and at one end of the injection port (34). The output shaft of the drive device is circumferentially fixedly connected to the rotating platform (33) to provide power for adjusting the angle of the injection port (34). The limiting block (321) is located on one end of the burner body (1) at the injection port (34) and on both sides of the rotating platform (33) to prevent the deflection angle of the injection port (34) from exceeding the preset range. The drive device and the flow regulating valve (322) are electrically connected to the controller, which is configured as follows: Based on the dynamic control of wind speed and wind direction, the driving device is driven to rotate the turntable (33) in the opposite direction of the wind, thereby adjusting the deflection angle of the spray nozzle (34) and adjusting the opening size of the flow regulating valve (322) to control the spray intensity.

3. The windproof and flame-stabilizing flame gun burner structure according to claim 1, characterized in that, The annular airflow guide groove (12) is designed in a spiral shape, and its inner wall is provided with guide ribs for guiding air to form a swirling flow and mix with fuel.

4. The windproof and flame-stabilizing burner structure of a flamethrower gun according to claim 2, characterized in that, The porous ceramic plate (13) is made of high-temperature resistant ceramic material. The plate body is evenly distributed with vent holes of 0.5-1.5mm in diameter, and a flame passage opening coaxial with the injection port (34) is opened in the center of the plate body. The size of the flame passage opening is larger than the size of the flame ejected from the injection port (34).

5. The windproof and flame-stabilizing burner structure of a flamethrower gun according to claim 1, characterized in that, The wind sensor (31) has a measurement range of 0-10 m / s, a measurement accuracy of ±0.2 m / s, a response time of ≤50 ms, and a wind direction measurement accuracy of ±5°.

6. The windproof and flame-stabilizing burner structure of a flamethrower gun according to claim 1, characterized in that, The spacing between adjacent annular windbreak rings (21) is 10-15 mm.

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