A flare burner

Abstract

The utility model discloses a torch burner belongs to torch burner technical field. Including the plug valve of being connected on the gas cylinder, the shunt is connected on the plug valve, and the shunt other end is connected with the combustion cylinder, and the combustion cylinder includes the outer shell and the inner shell, and the outer shell and the inner shell rotatory connection, and the outer shell and the inner shell all are set up with a plurality of air inlets on, the cavity is formed between the outer shell and the inner shell, and the outer shell lower extreme is set up on the inner shell outside, and the inner shell is located the bottom surface place of outer shell and is provided with the limit ring, and the bottom surface of outer shell is located the cavity and is set up with a plurality of annular arrangement's through -hole, the rotatable cooperation structure of the utility model outer shell and the inner shell can be through the air inlet staggered adjustment accurate control air intake, and cooperate the effect of conical cover body no.

Description

Technical Field

[0001] This utility model relates to the field of flare burner technology, and more specifically, to a flare burner. Background Technology

[0002] The wind resistance of handheld torch burners is a core indicator determining their applicability and reliability, especially in complex windy environments such as sporting events, outdoor adventures, and high-altitude operations. Failure of the wind-resistant structure can directly lead to flame extinguishing, ceremony interruption, or even safety accidents. Currently, wind-resistant structure design in the industry is still primarily based on passive adaptation, and a systematic solution that can actively cope with multi-directional winds, strong winds, and turbulence has not yet been developed. The technical deficiencies are mainly reflected in the following aspects: Existing wind protection solutions mostly rely on optimizing the premixing chamber structure to achieve passive wind protection, improving flame resistance by extending the gas-air mixing path and increasing mixing uniformity. Although they can withstand stable crosswinds of 10-12 m / s, in strong winds above 15 m / s or sudden wind changes, the outer flame of the combustion chamber is easily blown away, and the remaining premixing chamber ignition is difficult to sustain due to insufficient oxygen supply. Existing windproof structures suffer from a design flaw of prioritizing wind resistance over adaptability. To improve stability in strong winds, some products employ heavy metal windshields (increasing weight by 200-300g), sacrificing portability; other solutions enhance flame penetration by increasing gas injection pressure, but this leads to a 30%-50% increase in fuel consumption, shortening runtime. Therefore, there is an urgent need to overcome the limitations of passive defense design and develop new, actively adjustable windproof structures. In light of this, we propose a flare burner. Utility Model Content

[0003] The purpose of this invention is to provide a torch burner to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A flare burner includes a stopcock valve connected to a gas cylinder, a distributor connected to the stopcock valve, and a combustion cylinder connected to the other end of the distributor. The combustion cylinder includes an outer shell and an inner shell, which are rotatably connected. Both the outer shell and the inner shell have multiple air inlets. A cavity is formed between the outer shell and the inner shell. The lower end of the outer shell is fitted onto the outside of the inner shell. A limit ring is provided on the bottom surface of the inner shell at the bottom of the outer shell. Multiple through holes arranged in a ring are opened on the bottom surface of the outer shell at the cavity.

[0005] Preferably, the inner shell is provided with a primary premixing chamber and a secondary premixing chamber. A cover is provided at the upper end of the primary premixing chamber and a cover is provided at the upper end of the secondary premixing chamber. Multiple grooves are provided on the surface of both the cover and the cover.

[0006] Preferably, the outer wall of the inner shell is provided with a plurality of circumferentially spaced limiting protrusions, and the inner wall of the outer shell is provided with an annular limiting groove, the limiting protrusions extending into the annular limiting groove, and the limiting protrusions slidingly engaging with the annular limiting groove.

[0007] Preferably, the two outlet ends of the splitter are connected to the primary premixing chamber and the secondary premixing chamber through the inner shell via the first pipe and the end of the second pipe, respectively. The outlet end of the first pipe is connected to the primary premixing chamber via an ejector. The secondary premixing chamber is located on top of the primary premixing chamber, and the two are connected.

[0008] Preferably, the first and second pipelines are provided with annular pipes at their outlet ends in the primary and secondary premixing chambers, respectively, and the annular pipes have multiple outlets along their circumference.

[0009] Preferably, an air guide hood is provided at the air outlet, and the air outlets located on the circumference of the annular tube are configured as two sets located on the inner and outer sides of the annular tube respectively.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) The rotatable fitting structure of the outer shell and inner shell of this utility model can precisely control the air intake by adjusting the staggered air inlet. Combined with the function of the cone-shaped cover one and cover one two, it can resist the impact of multi-directional wind and strong wind. The groove guides rainwater into the cavity, and combined with the annularly arranged through holes for rapid drainage, it forms a closed-loop protection of windproof, flow guidance and drainage, effectively avoiding flameout or short circuit caused by wind and rain, and adapting to complex environments such as outdoor and high-altitude areas. The outer shell and inner shell can rotate smoothly through the limiting protrusion and annular groove, and the user can quickly adjust the air inlet state with one hand. The plug valve integrates the on / off and total flow control functions. Combined with the preset ratio of the distributor, it can adapt to different combustion needs without complicated operation. The fit between the limiting ring and the double shell ensures structural stability and the adjustment process is without jamming or deviation.

[0011] (2) The double-layer shell of this utility model forms a heat-insulating cavity, which reduces the temperature of the outer shell and avoids burns; the precision sealing of the plug valve and the stable diversion of the distributor prevent fuel leakage; the gas guide cover protects the fuel jet and the radial constraint of the limiting structure reduces combustion disorder caused by accidental collisions, and ensures operational safety in all aspects. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the inner shell structure of this utility model; Figure 3 This is a schematic diagram of the bottom structure of the inner shell of this utility model; Figure 4 This is a cross-sectional schematic diagram of the combustion chamber of this utility model.

[0013] The following are the labels in the diagram: 1. Plug valve; 2. Combustion cylinder; 201. Outer shell; 202. Inner shell; 203. Air inlet; 204. Primary premixing chamber; 205. Secondary premixing chamber; 206. Cover body one; 207. Cover body two; 208. Groove; 209. Through hole; 210. Limiting protrusion; 3. First pipeline; 4. Second pipeline; 5. Limiting ring; 6. Annular pipe. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Example: Please see Figure 1-4 A flare burner includes a stopcock valve 1 connected to a gas cylinder, a distributor connected to the stopcock valve 1, and a combustion chamber 2 connected to the other end of the distributor. The combustion chamber 2 includes an outer shell 201 and an inner shell 202, which are rotatably connected. Both the outer shell 201 and the inner shell 202 have multiple air inlets 203. By holding the lower end of the inner shell 202, the outer shell 201 can be rotated, causing the air inlets 203 on the outer shell 201 to be offset from those on the inner shell 202, reducing the direct impact of strong winds on the premixing chamber and thus enhancing the wind resistance of the combustion chamber 2. Furthermore, the cavity formed by the double-layer shells acts as a heat insulation barrier, reducing the temperature of the outer shell and preventing burns to the user.

[0016] A cavity is formed between the outer shell 201 and the inner shell 202. The lower end of the outer shell 201 is fitted onto the outside of the inner shell 202. A limiting ring 5 is provided on the bottom surface of the inner shell 202 at the bottom surface of the outer shell 201. The limiting ring 5 restricts the relative position of the outer shell 201 and the inner shell 202. Multiple through holes 209 arranged in a ring are provided on the bottom surface of the outer shell 201 at the cavity. The through holes 209 allow rainwater entering through the air inlet 203 on the outer shell 201 to fall through the through holes 209 from the cavity.

[0017] In this application, the inner shell 202 is provided with a primary premixing chamber 204 and a secondary premixing chamber 205. The upper end of the primary premixing chamber 204 is provided with a cover 206, and the upper end of the secondary premixing chamber 205 is provided with a cover 207. The surfaces of the cover 206 and the cover 207 are provided with multiple grooves 208. The grooves 208 allow water falling on the cover 206 and the cover 207 to flow into the cavity along the grooves 208. The cover 206 and the cover 207 are conical structures. The cover 206 and the cover 207 can also increase the wind and rain resistance of the primary premixing chamber 204 and the secondary premixing chamber 205.

[0018] In this application, the outer wall of the inner shell 202 is provided with a plurality of limiting protrusions 210 at equal intervals in an annular shape, and the inner wall of the outer shell 201 is provided with an annular limiting groove. The limiting protrusions 210 extend into the annular limiting groove, and the limiting protrusions 210 slide in conjunction with the annular limiting groove, so as to facilitate the relative rotation of the outer shell 201 and the inner shell 202.

[0019] In this application, the two outlet ends of the splitter are respectively connected to the primary premixing chamber 204 and the secondary premixing chamber 205 through the ends of the first pipe 3 and the second pipe 4 through the inner shell 202. The outlet end of the first pipe 3 is connected to the primary premixing chamber 204 through an ejector. The ejector uses the high-speed jet of fuel ejected from the first pipe 3 to generate negative pressure and actively draw in air from the inner shell 202, thereby increasing the air intake of the primary premixing chamber 204 and solving the problem of insufficient oxygen supply in low-pressure environments under traditional passive air intake. The secondary premixing chamber 205 is located at the top of the primary premixing chamber 204 and the two are connected. The fuel in the gas cylinder flows out through the stopcock valve 1 and enters the primary premixing chamber 204 and the secondary premixing chamber 205 respectively. Outside air is drawn in through the air inlet 203. The fuel and air are initially mixed in the primary premixing chamber 204. The other fuel, which passes through the second pipeline 4, directly enters the secondary premixing chamber 205. The primary premixing chamber 204 and the secondary premixing chamber 205 are connected, so that the mixed gas after primary premixing can also enter the secondary premixing chamber 205 and be further mixed with the fuel in the secondary premixing chamber 205.

[0020] In this application, the first pipeline 3 and the second pipeline 4 are equipped with annular pipes 6 at their outlet ends within the primary premixing chamber 204 and the secondary premixing chamber 205, respectively. Multiple outlets are provided along the circumference of the annular pipe 6. The annular pipe 6 and its multiple outlets facilitate fuel-air mixing, thereby improving combustion efficiency.

[0021] In this application, a gas guide shroud 601 is provided at the gas outlet. The gas guide shroud 601 provides a certain degree of protection for the fuel gas at the gas outlet, further improving combustion efficiency. The gas outlets located on the circumference of the annular pipe 6 are configured as two sets, located on the inner and outer sides of the annular pipe 6 respectively. The multiple gas outlets distributed around the circumference disperse the fuel into multiple jets, increasing the contact area between the fuel and air and avoiding local fuel accumulation caused by single jet injection. The inner gas outlet injects fuel towards the center of the premixing chamber, while the outer gas outlet injects fuel along the chamber wall, forming a three-dimensional injection pattern of "center-edge" that covers the entire space of the premixing chamber and eliminates mixing dead zones.

[0022] The air guide 601 is horn-shaped or arc-shaped, which can guide the fuel jet from the outlet in a preset direction (such as towards the center of the premixing chamber or diffuse along the chamber wall) to avoid mutual interference of airflows and the formation of eddies. At the same time, it reduces the direct impact of external wind on the fuel jet and ensures a stable fuel injection path. In addition, the air guide 601 can reflect the heat in the premixing chamber to preheat the fuel and promote fuel gasification.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A flare burner comprising a cock valve (1) connected to a gas cylinder, a flow divider connected to the cock valve (1), and a combustion cylinder (2) connected to the other end of the flow divider, characterized in that: The combustion chamber (2) includes an outer shell (201) and an inner shell (202), which are rotatably connected. Both the outer shell (201) and the inner shell (202) are provided with multiple air inlets (203). A cavity is formed between the outer shell (201) and the inner shell (202). The lower end of the outer shell (201) is sleeved on the outside of the inner shell (202). A limiting ring (5) is provided on the bottom surface of the inner shell (202) at the bottom surface of the outer shell (201). A plurality of through holes (209) arranged in a ring are opened on the bottom surface of the outer shell (201) at the cavity.

2. A flare burner according to claim 1, characterized in that: The inner shell (202) is provided with a primary premixing chamber (204) and a secondary premixing chamber (205). The upper end of the primary premixing chamber (204) is provided with a cover (206), and the upper end of the secondary premixing chamber (205) is provided with a cover (207). The surfaces of the cover (206) and the cover (207) are provided with multiple grooves (208).

3. A torch burner as claimed in claim 1, characterized in that: The outer wall of the inner shell (202) is provided with a plurality of limiting protrusions (210) at equal intervals in an annular shape. The inner wall of the outer shell (201) is provided with an annular limiting groove. The limiting protrusions (210) extend into the annular limiting groove and slide in cooperation with the annular limiting groove.

4. A flare burner as defined in claim 1, wherein: The two outlet ends of the splitter are connected to the primary premixing chamber (204) and the secondary premixing chamber (205) respectively through the end of the first pipe (3) and the second pipe (4) through the inner shell (202). The outlet end of the first pipe (3) is connected to the primary premixing chamber (204) through an ejector. The secondary premixing chamber (205) is located on top of the primary premixing chamber (204) and the two are connected.

5. A flare burner according to claim 4, wherein: The first pipeline (3) and the second pipeline (4) are provided with annular pipes (6) at their outlets in the primary premixing chamber (204) and the secondary premixing chamber (205). The annular pipes (6) have multiple outlets along their circumference.

6. A flare burner according to claim 5, wherein: An air guide hood (601) is provided at the air outlet, and the air outlets on the circumference of the annular tube (6) are set in two groups, located on the inner and outer sides of the annular tube (6) respectively.

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