Discharge ignition burner cleaning device

Abstract

The utility model belongs to the technical field of heat treatment cleaning, and particularly discloses a diffusion ignition burner cleaning device which comprises a burner and a nitrogen header pipe, a flange on the burner is connected with a pipeline, the pipeline is communicated with a first gas pipe, the first gas pipe is connected with a second gas pipe, and the pipeline and the second gas pipe are connected through a plurality of connecting assemblies. One end, far away from the gas pipe I, of the gas pipe II is communicated with a nitrogen header pipe; nitrogen is conveyed into the first gas pipe and the second gas pipe through the nitrogen header pipe, nitrogen with pressure is input into the pipeline through the first gas pipe, dust and impurities adsorbed on the inner wall of the burner pipeline are blown away through the pressure of the nitrogen, the burner is prevented from being blocked, normal flowing and combustion of coal gas are prevented from being affected, the ignition efficiency is improved, and the stability of flames is enhanced. Therefore, the risks of gas leakage and explosion are reduced. The utility model has the advantages of safety, convenience, remote control and easiness in purging and cleaning the burner.

Description

Technical Field

[0001] The utility model relates to the technical field of heat treatment cleaning, in particular to a cleaning device for a blow-off ignition burner. Background Technique

[0002] The blow-off ignition burner of the steelmaking converter gas introduces converter gas as fuel and ignites it through a specific ignition method, enabling the gas to undergo a violent combustion reaction in the combustion chamber. During ignition, a DN50 gas pipeline is led from the gas pipeline pressurized by the gas storage tank to the top of the blow-off tower. The gas serves as the ignition medium to ignite the pilot burner, thereby igniting the main blow-off gas.

[0003] During the gas generation process, in addition to the main components such as carbon monoxide and hydrogen, impurities such as tar, dust, and sulfides may also be contained. When the gas flows, these impurities will enter the ignition burner along with the gas. Over time, these impurities in the gas continuously accumulate in the ignition burner. Especially in the narrow positions or dead corners of the burner, when they accumulate to a certain extent, the burner will be blocked, affecting the normal flow and combustion of the gas, thereby reducing the ignition efficiency. It may also lead to unsuccessful ignition or unstable flame, increasing the risk of gas leakage and explosion. Content of the Utility Model

[0004] The purpose of the utility model is to provide a cleaning device for a blow-off ignition burner to solve the problems of burner blockage caused by impurity accumulation, which affects the normal flow and combustion of gas and poses potential safety hazards.

[0005] To achieve the above purpose, the basic scheme provided by the utility model is: a cleaning device for a blow-off ignition burner, including a burner and a nitrogen main pipe. A pipeline is flange-connected to the upper part of the burner. An air pipe I is communicated with the pipeline. The air pipe I is connected with an air pipe II. The pipeline and the air pipe II are connected by a plurality of connection components. The end of the air pipe II far from the air pipe I is communicated with the nitrogen main pipe. A valve is provided on the air pipe I.

[0006] The principle and beneficial effects of the utility model are as follows: Nitrogen is transported into the air pipe I and the air pipe II through the nitrogen main pipe. The valve is opened, and nitrogen with pressure is input into the pipeline from the air pipe I. The dust and impurities adsorbed on the inner wall of the burner pipeline are blown clean by the pressure of the nitrogen, preventing the burner from being blocked, affecting the normal flow and combustion of the gas, improving the ignition efficiency, strengthening the stability of the flame, and thus reducing the risk of gas leakage and explosion.

[0007] Scheme Two, this is the optimization of the basic scheme. A reducing joint is provided on the air pipe I. The air pipe I and the air pipe II are threadedly connected through the reducing joint. The air pipe II is φ50mm, and the air pipe I is φ25mm. By setting the reducing joint, the outer diameter of the air pipe is reduced from 50mm to 25mm, so that the nitrogen forms a gas knife state, accelerating the flow rate of the nitrogen and effectively enhancing the cleaning effect.

[0008] Solution three, which is the optimization of the basic solution. The valve is a solenoid valve. Setting the solenoid valve can remotely control the flow and termination of nitrogen in the air pipe through the DCS system, and can quickly adjust the opening and closing state of the valve according to the control signal.

[0009] Solution four, which is the optimization of solution three. A manual valve is provided on the first air pipe, and the manual valve is located on the side of the solenoid valve relative to the reducing joint. Setting the manual valve can manually open or close the air pipe channel to control the flow and termination of nitrogen when the entire power system is shut down and the solenoid valve cannot be used.

[0010] Solution five, which is the optimization of the basic solution. A pressure gauge is provided on the second air pipe. The pressure change in the nitrogen pipeline is detected through the pressure gauge to ensure that the pressure is within a reasonable range.

[0011] Solution six, which is the optimization of the basic solution. The connecting component includes a first collar. A connecting rod is connected to the first collar, and a second collar is connected to the connecting rod. The first collar is sleeved on the pipeline, the inner ring of the first collar is welded to the pipeline, the second collar is sleeved on the second air pipe, and the inner ring of the second collar is welded to the second air pipe. The pipeline and the second air pipe are connected through the connecting rod, and the second air pipe will not shake due to the flow of high-pressure nitrogen inside, having stability and safety. Description of the Drawings

[0012] Figure 1 is the installation schematic diagram of a scavenging ignition burner cleaning device of the present utility model;

[0013] Figure 2 is the perspective view of a scavenging ignition burner cleaning device of the present utility model;

[0014] Figure 3 is the front view of a scavenging ignition burner cleaning device of the present utility model. Detailed Description of the Invention

[0015] The present utility model will be further described in detail below through specific embodiments:

[0016] The reference numerals in the drawings of the specification include: 1. burner, 2. nitrogen main pipe, 3. first air pipe, 4. second air pipe, 5. reducing joint, 6. solenoid valve, 7. manual valve, 8. pressure gauge, 9. pipeline, 10. first collar, 11. connecting rod, 12. second collar.

[0017] Embodiment

[0018] The embodiment is basically as shown in the attached Figure 1 to the attached Figure 3As shown: A cleaning device for a diverging ignition burner, comprising a burner 1 and a nitrogen main pipe 2. A pipe 9 is flange-connected to the burner 1. An air pipe 1 is communicated with the pipe 9. The air pipe 1 is connected to an air pipe 2. A reducing joint 5 is provided on the air pipe 1. The air pipe 1 and the air pipe 2 are threadedly connected through the reducing joint 5. The pipe 9 and the air pipe 2 are connected through a plurality of connecting components. One end of the air pipe 2 far from the air pipe 1 is communicated with the nitrogen main pipe 2. A valve is provided on the air pipe 1. The valve is an electromagnetic valve 6. A manual valve 7 is provided on the air pipe 1. The manual valve 7 is located on the side of the electromagnetic valve 6 opposite to the reducing joint 5. A pressure gauge 8 is provided on the air pipe 2. The connecting component includes a first collar 10. A connecting rod 11 is connected to the first collar 10. A second collar 12 is connected to the connecting rod 11. The first collar 10 is sleeved on the pipe 9. The inner circle of the first collar 10 is welded to the pipe 9. The second collar 12 is sleeved on the air pipe 2. The inner circle of the second collar 12 is welded to the air pipe 2.

[0019] The specific implementation manner of this embodiment is as follows:

[0020] 1. When cleaning the burner 1, the ignition device is in the off state. First, an opening signal is transmitted through the DSC system to open the electromagnetic valve 6. Nitrogen enters the air pipe 2 and the air pipe 1 in sequence from the nitrogen main pipe 2. After the electromagnetic valve 6 is opened, nitrogen is input from the air pipe 1 into the pipe 9 to perform local purging work on the connection between the pipe 9 and the burner 1. When nitrogen is flowing, the staff can monitor the nitrogen pressure in the air pipe 2 through the pressure gauge 8. In case the pressure exceeds the stable value, the nitrogen input is immediately blocked. After the cleaning is completed, a closing signal is transmitted through the DSC system. After receiving the signal, the electromagnetic valve 6 closes to block the nitrogen, and thus a round of purging and cleaning work can be completed.

[0021] 2. When the entire power system is shut down and the burner 1 needs to be cleaned, the staff climbs to the air pipe 1 and manually opens the manual valve 7. Nitrogen is input from the air pipe 1 into the pipe 9 to perform local purging work on the connection between the pipe 9 and the burner 1. After the cleaning is completed, the manual valve 7 is manually closed to block the nitrogen, and thus a round of purging and cleaning work can be completed.

[0022] The above are only the embodiments of the present invention. Common general knowledge such as specific structures and characteristics in the solutions is not described in detail here. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can still be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be subject to the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. A diffused ignition burner cleaning device, characterized in that: The invention comprises a burner (1) and a nitrogen main pipe (2), wherein a flange is connected to a pipeline (9), the pipeline (9) is connected to a gas pipe 1 (3), the gas pipe 1 (3) is connected to a gas pipe 2 (4), the pipeline (9) and the gas pipe 2 (4) are connected via a plurality of connection components, an end of the gas pipe 2 (4) away from the gas pipe 1 (3) is connected to the nitrogen main pipe (2), and a valve is provided on the gas pipe 1 (3).

2. A diffused ignition burner cleaning device according to claim 1, characterized in that: The air pipe one (3) is provided with a reducer (5), and the air pipe one (3) is threadedly connected with the air pipe two (4) via the reducer (5).

3. A diffused ignition burner cleaning device according to claim 1, characterized in that: The valve is a solenoid valve (6).

4. A diffused ignition burner cleaning device according to claim 3, characterized in that: The air pipe 1 (3) is provided with a manual valve (7), and the manual valve (7) is located on the side of the solenoid valve (6) opposite to the reducer (5).

5. The diffused ignition burner cleaning device according to claim 1, characterized in that: The second air pipe (4) is provided with a pressure gauge (8).

6. A diffuse ignition burner cleaning device according to claim 1, characterized in that: The connecting assembly comprises a first ring (10), the first ring (10) is connected to a connecting rod (11), the connecting rod (11) is connected to a second ring (12), the first ring (10) is sleeved on a pipe (9), the inner ring of the first ring (10) is welded to the pipe (9), the second ring (12) is sleeved on a second air pipe (4), the inner ring of the second ring (12) is welded to a second air pipe (4).

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