Ignition gun for industrial furnace gas

Abstract

The utility model belongs to the technical field of ignition guns for industrial furnace gas, and relates to an ignition gun for industrial furnace gas. A gas pipe (3), a first ceramic sleeve (8) and a second ceramic sleeve (10) are installed on the ignition gun body (1), the ignition needle (5) penetrates into the first ceramic sleeve (8), the flame detector (6) penetrates into the second ceramic sleeve (10), and one end of the metal rod (4) is connected with the gas pipe (3). And the other end of the metal rod (4) is connected with a wind disc (7). The burning torch for the industrial furnace gas is simple in structure, the problem that a gas pipeline is blocked due to impurities, coal tar and the like is effectively solved, the use reliability is improved, and the gas flow is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of ignition guns for industrial furnace gas, and more specifically, it relates to an ignition gun for industrial furnace gas. Background Technology

[0002] Ignition guns are used in the ignition process of industrial furnaces to achieve automated ignition, which is safe, convenient, and fast. However, industrial furnace ignition guns frequently carry combustible gas, especially coke oven gas, which contains many impurities and coal tar, making the gas pipeline prone to blockage and causing ignition failure. Even during normal furnace operation, blockages in the gas pipeline can lead to burner extinguishing, significantly impacting equipment and production processes. The root cause of the frequent extinguishing problems with existing ignition guns is primarily due to blockages in the gas pipeline. Currently used ignition guns have a three-stage diameter change in the gas pipeline, from the inlet to the outlet: DN10→DN8→DN6. During use, impurities in the coke oven gas, along with coal tar, often accumulate at these diameter changes, leading to blockages.

[0003] Existing technology includes a patent titled "A Tubular Furnace Ignition Gun, Flame Detection System, and Flame Detection Method," with publication number CN116817313A. This technology discloses a tubular furnace ignition gun, comprising seven gas outlet holes at the top of the ignition gun head and eight gas outlet holes on the sides. The seven top holes are arranged with one central hole and six surrounding holes, the central hole having a larger diameter than the surrounding holes. A sealing device is installed above the central hole at the top for sealing. By improving the gas outlet holes on the ignition gun, the gas flow direction and pressure are altered, resulting in side-mounted flames. This allows the flame detector to detect the flame signal, reducing repetitive ignition operations and lowering the workload and intensity of maintenance. The gas outlet at the top of the ignition gun head of the tubular furnace is sealed with a screw and a steel paper gasket. Because the inner flame of the flame at the screw and steel paper gasket is less damaged, the gas flow direction and gas pressure of the ignition gun can be changed, and the flame will come out from the side, so that the flame detector of the tubular furnace can detect the flame signal.

[0004] However, this technology does not address the technical issues and solutions of this application. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an industrial furnace gas ignition gun that is simple in structure, effectively eliminates the problem of gas pipeline blockage caused by impurities, coal tar, etc., improves the reliability of use, and reduces the gas flow rate, in order to address the shortcomings of the existing technology.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] This utility model is an ignition gun for industrial furnace gas. The ignition gun body is equipped with a gas pipe, a first ceramic sleeve, and a second ceramic sleeve. The ignition needle is inserted into the first ceramic sleeve, the flame detector is inserted into the second ceramic sleeve, and one end of the metal rod is connected to the gas pipe.

[0008] The other end of the metal rod is connected to the fan.

[0009] A pressure-stabilizing needle valve is installed on the ignition gun body.

[0010] The ignition gun body is connected to the mounting bracket by bolts.

[0011] The center bolt hole of the fan disc is fitted with a stud plug.

[0012] Bolts are screwed onto the end rod of the first ceramic sleeve and bolts are screwed onto the end rod of the second ceramic sleeve.

[0013] The first ceramic sleeve and the second ceramic sleeve are arranged in parallel, with the first ceramic sleeve perpendicular to the fan coil unit.

[0014] The gas pipe, metal rod, and fan coil unit are welded together.

[0015] The first ceramic sleeve passes through the first positioning hole on the fan plate, and the second ceramic sleeve passes through the second positioning hole on the fan plate.

[0016] The working principle and beneficial effects of this utility model are as follows:

[0017] The industrial furnace gas ignition gun of this utility model has the following structural design: a gas pipe, a first ceramic sleeve, and a second ceramic sleeve are installed on the ignition gun body. The gas pipe is a single-section fitting, eliminating the need for reducing fittings, and its length can be significantly shorter than existing gas pipes. The first and second ceramic sleeves are reliably connected to the ignition gun body. The ignition needle passes through the first ceramic sleeve, and the flame detector passes through the second ceramic sleeve. One end of the metal rod is connected to the gas pipe. This utility model addresses the blockage problem by improving the gas pipe by removing two sections of reducing pipe, retaining only the section with the largest diameter. The larger pipe diameter, with consistent diameter across different sections, eliminates impurity accumulation and blockage caused by the reducing pipe. Because the gas pipe is shorter and the intermediate connection is missing, a metal rod is used as a connector and conductor to complete the electrical circuit between the gas pipe and the fan coil unit, ensuring reliable ignition. This utility model's ignition gun structure, after removing two sections of gas pipe, adds a stainless steel round rod as a connecting carrier and conductor, enabling the current to complete the circuit during ignition, thereby generating an electric spark. Through the structural improvements of this utility model, on the one hand, the problem of gas impurities accumulating at the diameter change of the gas pipe after mixing with coal tar during the use of coke oven gas is solved; on the other hand, the ignition process is automated, which is safe, convenient and fast, and the modified ignition gun will not be extinguished due to gas pipe blockage; and on the other hand, by shortening the length of the gas pipe of the ignition gun, the premixing area of ​​gas and air is extended, the gas flow rate is reduced, and production costs are saved. Attached Figure Description

[0018] The following is a brief explanation of the contents depicted in the accompanying drawings and the markings therein:

[0019] Figure 1 This is a cross-sectional view of the ignition gun for industrial furnace gas described in this utility model.

[0020] Figure 2 This is a partial structural schematic diagram of the ignition gun for industrial furnace gas described in this utility model;

[0021] Figure 3 This is a schematic diagram of the main structure of the air disc of the ignition gun for industrial furnace gas as described in this utility model.

[0022] Figure 4 This is a side view of the fan coil unit of the industrial furnace gas ignition gun described in this utility model.

[0023] The labels in the attached diagram are as follows: 1. Ignition gun body; 2. Pressure stabilizing needle valve; 3. Gas pipe; 4. Metal rod; 5. Ignition needle; 6. Flame detector; 7. Fan coil; 8. First ceramic sleeve; 9. Stud plug; 10. Second ceramic sleeve; 11. Bolt; 12. Mounting bracket; 13. End rod; 14. First positioning hole; 15. Second positioning hole. Detailed Implementation

[0024] The following description, with reference to the accompanying drawings, provides a more detailed explanation of the specific embodiments of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the functions and working principles of each part:

[0025] As attached Figure 1 - Appendix Figure 4 As shown, this utility model is an ignition gun for industrial furnace gas. The ignition gun body 1 is equipped with a gas pipe 3, a first ceramic sleeve 8, and a second ceramic sleeve 10. An ignition needle 5 is inserted into the first ceramic sleeve 8, a flame detector 6 is inserted into the second ceramic sleeve 10, and one end of a metal rod 4 is connected to the gas pipe 3. This structure addresses the shortcomings of existing technologies by proposing an improved technical solution. In this structural configuration, the gas pipe 3, first ceramic sleeve 8, and second ceramic sleeve 10 are installed on the ignition gun body 1. The gas pipe 3 is a single-section pipe, eliminating the need for a reducing fitting, and its length can be significantly shorter than existing gas pipes. The first ceramic sleeve 8 and second ceramic sleeve 10 are reliably connected to the ignition gun body. The ignition needle 5 is inserted into the first ceramic sleeve 8, the flame detector 6 is inserted into the second ceramic sleeve 10, and one end of the metal rod 4 is connected to the gas pipe 3. To solve the blockage problem, this utility model improves the gas pipe 3 by removing the two reducing sections (DN8 and DN6), retaining only the DN10 section. This results in a larger diameter pipe, with consistent diameter across different sections, eliminating impurity accumulation and blockage caused by the reducing diameter. Because the gas pipe 3 is shorter and lacks a central connection, a metal rod 4 (which can be a stainless steel round rod) is used as a connector and conductor to complete the electrical circuit between the gas pipe 3 and the fan coil unit 7, ensuring reliable ignition. This utility model, by removing the DN8 and DN6 sections of the gas pipe 3 and adding a stainless steel round rod as a connecting carrier and conductor, ensures that the current can complete the circuit during ignition, thereby generating an electric spark. Through structural improvements, this invention solves two main problems. First, it addresses the issue of gas impurities accumulating at gas pipe diameter changes during coke oven gas usage, causing blockages. Second, it enables automated ignition, ensuring safety, convenience, and speed, and the modified ignition gun avoids flameouts due to gas pipe blockages. Third, by shortening the length of the ignition gun's gas pipe, the premixing zone between gas and air is extended, reducing gas flow and saving production costs. The industrial furnace gas ignition gun described in this invention has a simple structure, effectively eliminates gas pipe blockages caused by impurities and coal tar, improves reliability, and reduces gas flow.

[0026] The other end of the metal rod 4 is connected to the fan coil unit 7. A stud plug 9 is installed in the center bolt hole of the fan coil unit 7. A pressure-stabilizing needle valve 2 is installed on the ignition gun body 1.

[0027] The ignition gun body 1 is connected to the mounting bracket 12 via bolts 11. This structure reliably connects the ignition gun body to the mounting bracket, securing the structure and ensuring reliable ignition operation.

[0028] A bolt 11 is screwed onto the end member 13 of the first ceramic sleeve 8, and a bolt 11 is screwed onto the end member 13 of the second ceramic sleeve 10. In the above structure, the diameter of the end member 13 is smaller than that of the ceramic sleeve. When the ceramic sleeve passes through the ignition gun body, the end member 13 passes through the through hole, while the ceramic sleeve is constrained by the through hole and cannot pass through. Then, a nut 11 is screwed onto the end member 13 to achieve a reliable connection between the ceramic sleeve and the ignition gun body 1, making it less prone to shaking or falling off.

[0029] The first ceramic sleeve 8 and the second ceramic sleeve 10 are arranged in parallel, with the first ceramic sleeve 8 perpendicular to the fan coil unit 7. The gas pipe 3, the metal rod 4, and the fan coil unit 7 are welded together. This structure reliably connects the gas pipe 3, the metal rod 4, and the fan coil unit 7 through welding.

[0030] The first ceramic sleeve 8 passes through the first positioning hole 14 on the fan plate 7, and the second ceramic sleeve 10 passes through the second positioning hole 15 on the fan plate 7. In this structure, the first positioning hole 14 reliably secures the first ceramic sleeve 8 to the fan plate 7, and the second positioning hole reliably secures the second ceramic sleeve 10 to the fan plate 7, thus fixing the structure.

[0031] The industrial furnace gas ignition gun of this utility model has a gas pipe 3, a first ceramic sleeve 8, and a second ceramic sleeve 10 installed on the ignition gun body 1. The gas pipe 3 is a single-section pipe, eliminating the need for reducers and allowing for a significantly shorter length than existing gas pipes. The first ceramic sleeve 8 and the second ceramic sleeve 10 are reliably connected to the ignition gun body. The ignition needle 5 is inserted into the first ceramic sleeve 8, and the flame detector 6 is inserted into the second ceramic sleeve 10. One end of the metal rod 4 is connected to the gas pipe 3. To solve the blockage problem, this utility model improves the gas pipe 3 by removing the DN8 and DN6 reducers, retaining only a DN10 section. This results in a larger diameter pipe with consistent diameter across different sections, eliminating impurity accumulation and blockage caused by the reducers. Because the gas pipe 3 is shorter and lacks intermediate connections, a metal rod 4 (which can be a stainless steel round rod) is used as a connector and conductor to complete the electrical circuit between the gas pipe 3 and the fan coil unit 7, ensuring reliable ignition. This novel structure removes the DN8 and DN6 gas pipe sections 3 and adds a stainless steel round bar as a connecting carrier and conductor, enabling the current to complete the circuit during ignition and thus generate an electric spark. Through this structural improvement, the following problems are solved: First, during the use of coke oven gas, impurities mix with coal tar and accumulate at the diameter change of the gas pipe, causing pipeline blockage. Second, automated ignition is achieved, which is safe, convenient, and fast, and the modified ignition gun will not experience flameout due to gas pipeline blockage. Third, by shortening the length of the gas pipe 3 of the ignition gun, the premixing zone of gas and air is extended, reducing gas flow and saving production costs.

[0032] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. An ignition gun for industrial furnace gas, characterized in that: A gas pipe (3), a first ceramic sleeve (8), and a second ceramic sleeve (10) are installed on the ignition gun body (1). The ignition needle (5) is inserted into the first ceramic sleeve (8), the flame detector (6) is inserted into the second ceramic sleeve (10), and one end of the metal rod (4) is connected to the gas pipe (3).

2. The ignition gun for industrial furnace gas according to claim 1, characterized in that: The other end of the metal rod (4) is connected to the fan plate (7).

3. The ignition gun for industrial furnace gas according to claim 1 or 2, characterized in that: A pressure-stabilizing needle valve (2) is installed on the ignition gun body (1).

4. The ignition gun for industrial furnace gas according to claim 1 or 2, characterized in that: The ignition gun body (1) is connected to the mounting bracket (12) by bolts (11).

5. The ignition gun for industrial furnace gas according to claim 2, characterized in that: The center bolt hole of the fan disc (7) is fitted with a stud plug (9).

6. The ignition gun for industrial furnace gas according to claim 1 or 2, characterized in that: Bolts (11) are screwed onto the end rod (13) of the first ceramic sleeve (8) and bolts (11) are screwed onto the end rod (13) of the second ceramic sleeve (10).

7. The ignition gun for industrial furnace gas according to claim 1 or 2, characterized in that: The first ceramic sleeve (8) and the second ceramic sleeve (10) are arranged in parallel, with the first ceramic sleeve (8) perpendicular to the fan plate (7).

8. The ignition gun for industrial furnace gas according to claim 2, characterized in that: The gas pipe (3), metal rod (4) and fan coil unit (7) are welded together.

9. The ignition gun for industrial furnace gas according to claim 2, characterized in that: The first ceramic sleeve (8) passes through the first positioning hole (14) on the fan plate (7), and the second ceramic sleeve (10) passes through the second positioning hole (15) on the fan plate (7).

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