Wind-resistant high-altitude flame nozzle structure

Abstract

The utility model discloses a wind-resistant high-altitude flame nozzle structure relates to flame nozzle technical field. The utility model discloses a nozzle body, its inside is equipped with gas nozzle and is towards the igniter of gas nozzle setting, is equipped with the gas pipe of gas nozzle intercommunication on the nozzle body, is equipped with a plurality of air inlet holes on the nozzle body along its perimeter direction and is penetrated, the wind shield is fixed and is intercommunication setting at the top of nozzle body, and the one end of wind shield is away from the nozzle body and is interconnected to have the injection cover, and the wind shield is the funnel type structure of gradually decreasing cross section area from one end to the other end of being connected with the nozzle body, and the injection cover is the funnel type structure of gradually increasing cross section area from one end to the other end of being connected with the wind shield. The utility model discloses the cooperation of wind shield, injection cover and other structures effectively blocks the outside strong wind, reduces the blowing out risk of wind to the flame.

Description

Technical Field

[0001] This utility model belongs to the field of flame nozzles, specifically, it relates to a wind-resistant high-altitude flame nozzle structure. Background Technology

[0002] A high-altitude flamethrower is a device capable of projecting flames at high altitudes to achieve specific functions or effects. Depending on the application and purpose, it mainly includes high-altitude flamethrowers for stage performances and high-altitude obstacle-clearing flamethrower drones. The nozzle is a key component of the high-altitude flamethrower, used to spray fuel and ignite it to produce a flame effect. However, the existing ventilation structure around the nozzle is usually a vertical disc structure, which is not conducive to concentrated firepower. Furthermore, the existing gas orifices are vertical, leading to incomplete fuel combustion.

[0003] Chinese patent CN213362475U discloses a novel flame nozzle structure. The device ejects flames through a circular hole in a flame-emitting disc. A convex disc is located in the middle of the flame-emitting disc, and a gas hole is located in the middle of the convex disc at a 45-degree angle. This design allows for complete combustion of fuel and saves energy. However, during use, the device is susceptible to extinguishing due to its weak wind resistance caused by external environmental factors, resulting in the flame source shifting out of position. In view of this, this utility model is hereby proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a wind-resistant high-altitude flame nozzle structure, thus solving the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: A wind-resistant high-altitude flame nozzle structure includes: a nozzle body, which has a gas nozzle and an igniter facing the gas nozzle inside. The nozzle body is provided with a gas pipe communicating with the gas nozzle, and multiple air inlets are provided through the nozzle body along its circumference. A wind shield is fixedly and connected to the top of the nozzle body. The end of the wind shield away from the nozzle body is connected to a spray shield. The wind shield is a funnel-shaped structure with a gradually decreasing cross-sectional area from one end connected to the nozzle body to the other end. The spray shield is a funnel-shaped structure with a gradually increasing cross-sectional area from one end connected to the wind shield to the other end.

[0006] Optionally, the nozzle body has a hemispherical chamber inside, and the diameter of the nozzle body inside is larger than the maximum diameter of the windshield.

[0007] Optionally, the inner wall of the wind shield is embedded with a spiral groove, which extends from the end of the wind shield connected to the nozzle body to the end connected to the spray cover.

[0008] Optionally, the nozzle body is provided with a plurality of air intake channels communicating with the plurality of air intake holes along its circumference.

[0009] Optionally, the air intake channel is inclined from top to bottom on the nozzle body, with the inclination angle ranging from 45° to 80°.

[0010] Optionally, the outer wall of the nozzle body is wrapped with an insulation layer, and the outer wall of the nozzle body is wrapped with a protective net for supporting the insulation layer.

[0011] Optionally, an auxiliary cover is connected to one end of the spray cover away from the windproof cover. The auxiliary cover is a trapezoidal structure with a gradually decreasing cross-sectional area from one end connected to the spray cover to the other end. An auxiliary groove communicating with the spray cover is provided through the auxiliary cover. Both the inner and outer walls of the auxiliary cover are arc-shaped.

[0012] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time: 1. By setting up a windproof cover and a spray cover, the structure of the windproof cover and the spray cover effectively blocks strong winds from the outside, reduces the risk of the wind blowing out the flame, and improves the stability of the flame nozzle when working outdoors or in windy environments. 2. By incorporating spiral grooves, the air and fuel gas can mix more thoroughly as they flow upwards. The spiraling air creates a whirlwind-like effect, enhancing the containment and stability of the flame, improving energy efficiency, and resulting in a more stable and hotter flame. Furthermore, the stable airflow formed by the spiraling air acts as a protective barrier, effectively resisting interference from lateral winds and maintaining stable combustion and normal ejection even in strong winds. 3. By setting up an insulation layer and a protective net, the insulation layer is wrapped around the outer wall of the nozzle body to reduce the loss of heat from the inside of the nozzle body to the outside, maintain a high-temperature environment in the combustion zone, and promote the complete combustion of gas. The protective net supports the insulation layer and prevents it from being damaged by external forces. At the same time, it also has a certain protective function to prevent external objects from directly colliding with the nozzle body. It should be noted that the insulation layer can be ceramic cotton, ceramic fiber blanket, etc.

[0013] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0014] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 A structural diagram from another perspective; Figure 3 This is a schematic diagram of the internal structure of the nozzle body of this utility model; Figure 4 This is a top view of the protective cover, spray cover, and auxiliary cover of this utility model; Figure 5 This utility model Figure 4 Cross-sectional view at point AA; Figure 6 This is a schematic diagram of the structure of the insulation layer and protective net of this utility model.

[0015] The attached diagram lists the components represented by each number as follows: 1. Nozzle body; 2. Windproof cover; 3. Spray cover; 4. Auxiliary cover; 5. Air inlet; 6. Air inlet channel; 7. Spiral groove; 8. Gas pipe; 9. Gas nozzle; 10. Ignition device; 11. Insulation layer; 12. Protective net; 13. Auxiliary groove.

[0016] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings.

[0018] Please see Figure 1-6 As shown, this embodiment provides a wind-resistant high-altitude flame nozzle structure, including a nozzle body 1, which has a gas nozzle 9 inside and an igniter 10 facing the gas nozzle 9. The nozzle body 1 has a gas pipe 8 communicating with the gas nozzle 9. Multiple air inlets 5 are provided through the nozzle body 1 along its circumference. A wind shield 2 is fixedly and connected to the top of the nozzle body 1. The end of the wind shield 2 away from the nozzle body 1 is connected to a spray shield 3. The wind shield 2 is a funnel-shaped structure with a gradually decreasing cross-sectional area from the end connected to the nozzle body 1 to the other end. The spray shield 3 is a funnel-shaped structure with a gradually increasing cross-sectional area from the end connected to the wind shield 2 to the other end.

[0019] Specifically, in this embodiment, the nozzle body 1 is installed on the flamethrower, the gas pipe 8 is connected to the gas supply equipment on the flamethrower, and the working principle of the igniter 10 is the prior art; the gas enters the gas nozzle 9 through the gas pipe 8, and the igniter 10 ignites the gas. Outside air enters through multiple air inlets 5 on the nozzle body 1 to provide oxygen for combustion. The wind shield 2 is funnel-shaped, which can guide the air to enter faster and at the same time block the interference of strong winds on the flame. After the gas burns, the flame enters the spray hood 3 through the wind shield 2. The cross-sectional area of ​​the spray hood 3 gradually increases, so that the flame can spread better when it is sprayed out, achieving a high-altitude flamethrowing effect. The structure of the wind shield 2 effectively blocks strong winds from the outside, reduces the risk of the wind blowing out the flame, and improves the stability of the flamethrower in windy environments such as outdoors. At the same time, the design of the air inlets 5 and the wind shield 2 allows sufficient air to enter and mix fully with the gas, ensuring complete combustion of the gas, improving combustion efficiency, and reducing gas waste.

[0020] It should be noted that the gradually increasing cross-sectional area of ​​the spray hood 3 helps to evenly and powerfully diffuse the flame after combustion into the high altitude, meeting the needs of high-altitude flame-throwing effects in specific scenarios. Secondly, the materials of the nozzle body 1, wind shield 2, and spray hood 3 must have characteristics such as high temperature resistance and corrosion resistance to adapt to the high-temperature environment of gas combustion and the requirements of long-term use. At the same time, the connection between the gas pipe 8 and the nozzle body 1, as well as the connections between various components, should be tight to prevent gas leakage and ensure safe use. The installation method of the nozzle body 1 and the flame generator is existing technology and will not be described here.

[0021] In this embodiment, as Figures 1 to 5 As shown, the nozzle body 1 has a hemispherical chamber inside, and the diameter inside the nozzle body 1 is larger than the maximum diameter of the wind shield 2. Specifically, the hemispherical chamber inside the nozzle body 1 can buffer and initially mix the incoming air, so that the two can be mixed more fully, further improving the combustion efficiency and making the flame more stable and vigorous.

[0022] In this embodiment, as Figure 2 and Figure 5As shown, the inner wall of the wind shield 2 is embedded with a spiral groove 7. The spiral groove 7 extends from the end of the wind shield 2 connected to the nozzle body 1 to the end connected to the spray cover 3. Specifically, the spiral groove 7 on the inner wall of the wind shield 2 guides the air entering the wind shield 2 to generate a spiral upward motion. This spiral motion of air and gas can be more fully mixed during the upward flow. At the same time, the spiral upward air forms a whirlwind-like effect, which enhances the containment and stabilization of the flame, improves energy utilization, and makes the flame more stable and at a higher temperature. Meanwhile, the stable airflow formed by the spiral upward air acts as a protective barrier, which can effectively resist the interference of side wind on the flame. Even in strong wind environments, it can maintain stable combustion and normal spraying of the flame. It should be noted that the pitch and depth of the spiral groove 7 need to be optimized according to the actual gas type, flow rate, and working environment of the burner to achieve the best mixing and wind resistance effect. At the same time, the surface of the spiral groove 7 should be smooth to prevent impurities from adhering and affecting airflow.

[0023] In this embodiment, as Figures 1 to 5 As shown, the nozzle body 1 has multiple air intake channels 6 connected to multiple air intake holes 5 along its circumference. The air intake channels 6 are inclined from top to bottom on the nozzle body 1, with an inclination angle between 45° and 80°. Specifically, the arrangement of the air intake channels 6 ensures that air enters evenly around the nozzle body 1, avoiding insufficient or excessive local air supply, so that the gas can be mixed with an appropriate amount of air throughout the combustion area, achieving more uniform and stable combustion. It should be noted that the diameter and number of air intake channels 6 need to be reasonably designed according to the gas flow rate of the burner and the amount of air required for combustion, to ensure that the air supply can meet the combustion requirements without causing excessive resistance that affects the air intake effect. It should also be noted that the height of the air intake is lower than the height of the gas nozzle 9.

[0024] In this embodiment, as Figure 6 As shown, the outer wall of the nozzle body 1 is wrapped with an insulation layer 11, and the outer wall of the nozzle body 1 is wrapped with a protective net 12 for supporting the insulation layer 11. Specifically, the insulation layer 11 is wrapped around the outer wall of the nozzle body 1 to reduce the loss of heat from the inside of the nozzle body 1 to the outside, maintain a high temperature environment in the combustion zone, and facilitate the complete combustion of the gas. The protective net 12 is used to support the insulation layer 11 and prevent it from being damaged by external forces. At the same time, it also has a certain protective function to prevent external objects from directly colliding with the nozzle body 1.

[0025] In this embodiment, as Figures 1 to 5As shown, the end of the spray hood 3 away from the windproof hood 2 is connected to an auxiliary hood 4. The auxiliary hood 4 is a trapezoidal structure with a gradually decreasing cross-sectional area from the end connected to the spray hood 3 to the other end. An auxiliary groove 13 communicating with the spray hood 3 is provided through the auxiliary hood 4. The inner and outer walls of the auxiliary hood 4 are both arc-shaped. Specifically, the auxiliary groove 13 in the auxiliary hood 4 guides and disperses the flame, so that the flame can be sprayed more evenly and powerfully into the high sky, while preventing external airflow from blowing into the spray hood 3.

[0026] Working principle: The gas pipe 8 is connected to an external gas supply device. During use, gas enters the hemispherical chamber inside the nozzle body 1 through the gas pipe 8 and is ejected at a certain pressure through the gas nozzle 9. Simultaneously, outside air enters the chamber through the circumferentially distributed air inlets 5 and the inclined air inlet channel 6 of the nozzle body 1, initially mixing with the gas. The large diameter design of the hemispherical chamber (larger than the maximum diameter of the windshield 2) provides ample space for mixing and buffers airflow fluctuations. The mixed gas enters the nozzle body 1, and the igniter 10 ignites the mixture near the gas nozzle 9, forming an initial flame. The burning mixture enters the windshield 2, while the spiral grooves 7 on the inner wall guide the airflow to form a spiral vortex, enhancing the secondary mixing of gas and air and improving combustion completeness. The airflow then continues... The flame enters the spray hood 3, and the flame diffusion angle is adjusted by expanding the space to avoid excessive flame concentration and local overheating. At the same time, it prepares for subsequent stable spraying. After being adjusted by the spray hood 3, the flame enters the auxiliary hood 4. The auxiliary groove 13 guides the flame to be sprayed out in a directional manner, reducing the interference of external turbulence on the flame shape. Throughout the process, the heat insulation layer 11 on the outer wall of the nozzle body 1 reduces the loss of combustion heat to the external environment, ensuring the temperature of the nozzle body 1 and the internal mixed gas is stable and maintaining combustion efficiency. The protective net 12 fixes and protects the heat insulation layer 11, preventing damage to the heat insulation layer 11 from debris or airflow in the high-altitude environment. The overall structure is reasonably coordinated, which can significantly improve the wind resistance of the nozzle body 1, adapt to the high-altitude strong wind environment, and at the same time improve combustion efficiency and enhance flame intensity.

[0027] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A wind-resistant high-altitude flame nozzle structure, characterized in that, include: The nozzle body (1) has a gas nozzle (9) inside and an igniter (10) facing the gas nozzle (9). The nozzle body (1) has a gas pipe (8) communicating with the gas nozzle (9). The nozzle body (1) has multiple air inlets (5) running through it along its circumference. A wind shield (2) is fixedly and connected to the top of the nozzle body (1). The wind shield (2) is connected to a spray shield (3) at one end away from the nozzle body (1). The wind shield (2) is a funnel-shaped structure with a gradually decreasing cross-sectional area from one end connected to the nozzle body (1) to the other end. The spray shield (3) is a funnel-shaped structure with a gradually increasing cross-sectional area from one end connected to the wind shield (2) to the other end.

2. The wind-resistant high-altitude flame nozzle structure according to claim 1, characterized in that, The nozzle body (1) has a hemispherical chamber inside, and the diameter inside the nozzle body (1) is greater than the maximum diameter of the windproof cover (2).

3. The wind-resistant high-altitude flame nozzle structure according to claim 2, characterized in that, The windproof cover (2) has a spiral groove (7) embedded in its inner wall. The spiral groove (7) extends from the end of the windproof cover (2) connected to the nozzle body (1) to the end connected to the spray cover (3).

4. The wind-resistant high-altitude flame nozzle structure according to claim 2, characterized in that, The nozzle body (1) has multiple air intake channels (6) that communicate with multiple air intake holes (5) along its circumference.

5. The wind-resistant high-altitude flame nozzle structure according to claim 4, characterized in that, The air intake channel (6) is inclined from top to bottom on the nozzle body (1), and the inclination angle is between 45° and 80°.

6. The wind-resistant high-altitude flame nozzle structure according to claim 1, characterized in that, The outer wall of the nozzle body (1) is covered with a heat insulation layer (11), and the outer wall of the nozzle body (1) is covered with a protective net (12) for supporting the heat insulation layer (11).

7. The wind-resistant high-altitude flame nozzle structure according to claim 1, characterized in that, The spray cover (3) is connected to an auxiliary cover (4) at one end away from the windproof cover (2). The auxiliary cover (4) is a platform-shaped structure with a gradually decreasing cross-sectional area from one end connected to the spray cover (3) to the other end. An auxiliary groove (13) communicating with the spray cover (3) is provided through the auxiliary cover (4). The inner and outer walls of the auxiliary cover (4) are both arc-shaped.

Images