Ignition torch with variable air-fuel ratio

Abstract

The utility model discloses an ignition torch with a variable air-fuel ratio, and relates to the technical field of industrial torches. Comprising an inner tube, a middle tube, a sleeve and an ignition electrode, first long holes are formed in the side face of the inner pipe in the axis direction, and a gas nozzle is arranged on the upper portion of the inner pipe. Second long holes are formed in the side face of the middle pipe in the axis direction. The sleeve is provided with a round hole for air to enter; the inner pipe penetrates into the middle pipe, the middle pipe penetrates into the sleeve, the inner pipe is detachably connected with the middle pipe, and the middle pipe is fixedly connected with the sleeve; the sleeve is provided with an ignition electrode; the inner pipe is connected with a gas pipeline; the air-fuel ratio of the ignition torch is adjusted to adapt to the change of fuel gas components, so that the ignition effect of the ignition torch is ensured; the problem that due to the fact that fuel gas components are different, an ignition torch cannot meet different fuel gas components at the same time, and ignition fails is solved.

Description

Technical Field

[0001] This utility model relates to the field of industrial flare technology, specifically a variable air-fuel ratio ignition flare. Background Technology

[0002] Industrial facilities such as chemical plants generate large amounts of flammable and explosive gases during production. If these gases are directly released into the atmosphere, they will not only cause serious environmental pollution but may also trigger fires or even explosions. Industrial flares eliminate these potential safety hazards by concentrating and burning these gases, converting them into harmless carbon dioxide, water, or other low-toxicity substances.

[0003] In the use of industrial flares, the key is to reliably ignite the combustible gases emitted by the flare. The industry standard ignition method typically involves using a pilot torch to first ignite a permanent flame, which then uses the flame to ignite the industrial flare. Pilot torches are characterized by high ignition efficiency, good reliability, and long service life.

[0004] Because different production enterprises may use fuel gas with different compositions, traditional ignition torches cannot simultaneously meet the needs of different gas compositions, and in some cases, ignition failure may occur. Utility Model Content

[0005] This invention overcomes the shortcomings of the prior art and proposes a patent for a variable air-fuel ratio ignition torch; by rotating the inner tube, the relative positions of the openings on the inner and middle tube walls of the gas tube are changed, and the cross-sectional area of ​​the gas outlet is adjusted to achieve the effect of changing the ratio of gas to air.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0007] A variable air-fuel ratio ignition torch includes an inner tube, a middle tube, a sleeve, and an ignition electrode. The inner tube has a first elongated hole arranged along its axial direction on its side, and a gas nozzle is installed at the top of the inner tube. The middle tube has a second elongated hole arranged along its axial direction on its side. The sleeve has a circular hole for air entry. The inner tube passes through the middle tube, and the middle tube passes through the sleeve. The inner tube and the middle tube are detachably connected, and the middle tube and the sleeve are fixedly connected. The sleeve is fitted with the ignition electrode. The inner tube is connected to a gas pipeline.

[0008] Furthermore, the lower end of the inner tube is connected to a first flange, and the lower end of the middle tube is connected to a second flange. The inner tube and the middle tube are connected and fixed by bolts through the first flange and the second flange.

[0009] Furthermore, the second flange has bolt holes, which are oblong holes.

[0010] Furthermore, the outer wall of the side of the central tube without the second elongated hole is welded to the inner wall of the side of the sleeve.

[0011] Furthermore, the sleeve has circular holes arranged along the axial direction on its side; the circular holes are connected to air inlets.

[0012] Furthermore, a rain shield is provided on the upper part of the ignition electrode.

[0013] Furthermore, a blocking plate is installed at the lower end of the sleeve.

[0014] The beneficial effects of this utility model compared to the prior art are as follows:

[0015] This utility model discloses a variable air-fuel ratio ignition torch, mainly comprising an inner tube, a middle tube, a sleeve, and an ignition electrode. The air-fuel ratio of the ignition torch is adjusted by changing the diameter between the inner tube and the opening in the middle tube wall through rotation of the middle tube. This allows the ignition torch to adapt to changes in gas composition without replacing the equipment, ensuring effective ignition. It solves the problem of ignition failure caused by the inability of the ignition torch to simultaneously meet different gas compositions. Attached Figure Description

[0016] Figure 1 This is a front cross-sectional view of a variable air-fuel ratio ignition torch according to the present invention.

[0017] Figure 2 This is a side sectional view of a variable air-fuel ratio ignition torch according to the present invention;

[0018] Figure 3 yes Figure 2 Sectional view along the BB direction.

[0019] Figure label:

[0020] 1. Inner tube; 2. Middle tube; 3. Sleeve; 4. Ignition electrode;

[0021] 101. First flange; 102. First elongated hole; 103. Gas nozzle;

[0022] 201. Second flange; 202. Second elongated hole;

[0023] 301. Blocking plate; 302. Round hole; 303. Rain guard. Detailed Implementation

[0024] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, this utility model will be further described in detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it. The technical solution of this utility model will be described in detail below with reference to the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0025] See Figures 1 to 3 This embodiment proposes a variable air-fuel ratio ignition torch, including an inner tube 1, a middle tube 2, a sleeve 3, and an ignition electrode 4. The lower end of the inner tube 1 is connected to a first flange 101, and the side of the inner tube 1 has a first elongated hole 102 arranged along the axial direction. A gas nozzle 103 is provided on the upper part of the inner tube 1. The lower end of the middle tube 2 is connected to a second flange 201, and the side of the middle tube 2 has a second elongated hole 202 arranged along the axial direction. The lower end of the sleeve 3 is provided with a blocking plate 301, and the side of the sleeve 3 has a circular hole 302 arranged along the axial direction. The circular hole 302 is connected to an air inlet.

[0026] The inner tube 1 passes through the middle tube 2. The inner tube 1 and the middle tube 2 are connected and fixed by bolts through the first flange 101 and the second flange 201. The middle tube 2 passes through the sleeve 3. The outer wall of the middle tube 2 without the second elongated hole 202 is welded to the inner wall of the sleeve 3.

[0027] The bolt holes on the second flange 201 are oblong holes. The ignition electrode 4 is installed at the lower part of the sleeve 3, and a rain shield 303 is installed at the upper part of the ignition electrode 4.

[0028] When the ignition torch is in use, the inner tube 1 is connected to the gas pipeline. Gas enters the inner tube 1 and flows through the pipeline to the top gas nozzle 103. Simultaneously, some gas overflows from the first elongated holes 102 arranged on the inner side and enters the middle tube 2 through the second elongated hole 202 on the side of the middle tube 2. Air enters the middle tube 2 through the round holes 302 arranged on the side of the sleeve 3 and mixes with the gas. The ignition electrode 4 is fixed to the lower part of the sleeve 3 and the electrode head is inserted into the sleeve 3. The ignition electrode 4 ignites the gas, and the flame rises along the second elongated hole 202 on the middle tube 2 to the top of the ignition torch, igniting the gas sprayed from the gas nozzle 103 at the top of the inner tube 1.

[0029] When the fuel gas composition changes or the ignition effect of the ignition torch is poor, the bolts between the first flange 101 and the second flange 201 can be loosened, and the angle of the middle pipe 2 can be rotated to change the diameter between the first elongated hole 102 on the inner pipe 1 and the second elongated hole 202 on the middle pipe 2, thereby adjusting the air-fuel ratio of the ignition torch. By rotating the angle of the middle pipe 2 to change the diameter between the openings on the walls of the inner pipe 1 and the middle pipe 2, and thus adjusting the air-fuel ratio of the ignition torch, it is possible to adapt to changes in fuel gas composition without replacing the equipment, ensuring the ignition effect of the ignition torch. This solves the problem that the ignition torch cannot simultaneously meet different fuel gas compositions, causing ignition failure.

[0030] The above description is a further detailed explanation of the present invention in conjunction with specific preferred embodiments. It should not be considered that the specific embodiments of the present invention are limited to this. For those skilled in the art, several simple deductions or substitutions can be made without departing from the present invention, and all such deductions or substitutions should be considered to fall within the scope of patent protection determined by the submitted claims.

Claims

1. A variable air-fuel ratio ignition torch, characterized in that, It includes an inner tube (1), a middle tube (2), a sleeve (3), and an ignition electrode (4); the inner tube (1) has a first elongated hole (102) arranged along the axial direction on its side, and a gas nozzle (103) is provided on the upper part of the inner tube (1); the middle tube (2) has a second elongated hole (202) arranged along the axial direction on its side; the sleeve (3) is provided with a round hole (302) for air to enter; the inner tube (1) passes through the middle tube (2), the middle tube (2) passes through the sleeve (3), the inner tube (1) and the middle tube (2) are detachably connected, and the middle tube (2) and the sleeve (3) are fixedly connected; the sleeve (3) is equipped with an ignition electrode (4); the inner tube (1) is connected to a gas pipeline.

2. The variable air-fuel ratio ignition torch according to claim 1, characterized in that, The lower end of the inner tube (1) is connected to a first flange (101), and the lower end of the middle tube (2) is connected to a second flange (201). The inner tube (1) and the middle tube (2) are connected and fixed by bolts through the first flange (101) and the second flange (201).

3. A variable air-fuel ratio ignition torch according to claim 2, characterized in that, The second flange (201) has bolt holes, which are oblong holes.

4. A variable air-fuel ratio ignition torch according to claim 1, characterized in that, The outer wall of the middle tube (2) without the second long hole (202) is welded to the inner wall of the sleeve (3).

5. A variable air-fuel ratio ignition torch according to claim 1, characterized in that, The sleeve (3) has round holes (302) arranged along the axial direction on its side; the round holes (302) are connected to an air inlet.

6. A variable air-fuel ratio ignition torch according to claim 1, characterized in that, A rain shield (303) is provided on the upper part of the ignition electrode (4).

7. A variable air-fuel ratio ignition torch according to claim 1, characterized in that, A plug plate (301) is provided at the lower end of the sleeve (3).

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