Silencing device and ignition nozzle indicator

Abstract

The invention discloses a silencing device and an ignition nozzle indicator, and solves the technical problem that the physical and psychological health of workers is seriously influenced by strong noise generated when an ignition nozzle indicator works in the prior art. Wherein the silencing main body and the air inlet pipeline are arranged; the silencing main body is of a tubular structure with two through ends; the gas outlet end of the gas inlet pipeline communicates with the interior of the silencing body and is used for providing gas for reducing the flow speed of the plasma into the silencing body. The silencing main body in the silencing device is installed at the fire outlet end of the indicator body, and the silencing main body can isolate high-speed plasmas sprayed out of the indicator body from the outside atmosphere and prevent the high-speed plasmas from directly impacting air to generate strong noise; meanwhile, the air sucked into the silencing main body can reduce the temperature and kinetic energy of the plasma to weaken the impact force of the plasma, so that the effect of reducing the noise generated when the indicator body works is achieved.

Description

Technical Field

[0001] The present application belongs to the technical field of annealing furnace equipment, and specifically relates to a silencer and an ignition nozzle indicator. Background Art

[0002] An ignition burner is provided at the main gas burner of the annealing furnace. The stability of the combustion state of the ignition burner can prevent the main burner from extinguishing. However, the ignition burner is located inside the furnace of the annealing furnace, making it inconvenient to observe its combustion state.

[0003] In order to be able to grasp the combustion status of the ignition burner in the annealing furnace in real time, an ignition burner indicator is generally installed outside the furnace of the annealing furnace; wherein, the structure and gas supply source of the ignition burner indicator are exactly the same as the structure and gas supply source of the ignition burner, and the worker can judge the combustion status of the ignition burner by observing the combustion status of the ignition burner indicator (the combustion status of the two is the same).

[0004] like Figure 1 As shown, the existing ignition nozzle indicator consists of three parts: a gas supply pipeline, an indicator body and an ignition hole. The gas provided is premixed gas, that is, a gas in which air and combustible gas are mixed in a certain proportion.

[0005] After the gas burns in the combustion chamber inside the indicator body, its temperature rises rapidly and its volume expands, forming a high-speed plasma in the pipe. When the high-speed, high-temperature plasma is ejected from the ignition burner indicator, it violently impacts the air and generates strong noise, which can reach more than 80 decibels, forming noise pollution and having a serious impact on the physical and mental health of the surrounding workers. Therefore, inventing a silencing device that can reduce the noise of the ignition burner indicator is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0006] In order to solve the above technical problems, the present application provides a silencer device on the one hand to solve the technical problem in the prior art that the ignition nozzle indicator will generate strong noise when working, which seriously affects the physical and mental health of the workers.

[0007] The technical solution adopted to achieve the purpose of this application is:

[0008] A silencer device comprises a silencer body and an air intake duct;

[0009] The muffler body is a tubular structure with two ends connected;

[0010] The gas outlet end of the gas inlet pipe is communicated with the interior of the muffler body, and is used to provide gas for reducing the flow rate of plasma into the interior of the muffler body.

[0011] In order to better realize the present application, further optimization is made in the above structure, and the outlet end of the air inlet pipe is arranged close to the connection end of the silencer body.

[0012] In order to better realize the present application, further optimization is made in the above structure, and a flow regulating valve for regulating the gas flow is provided on the air intake pipeline.

[0013] In order to better realize the present application, further optimization is made in the above structure, the caliber of the air inlet end of the silencer body is smaller than the caliber of the air outlet end of the silencer body, and the silencer device also includes a buffer part for slowing down the flow rate of the mixed air flow, and the buffer part is arranged at the large end of the silencer body.

[0014] In order to better realize the present application, further optimization is made in the above structure, the buffer part is a plate-shaped structure, and a plurality of through holes connecting the inside of the silencer body and the outside of the silencer body are arranged on the buffer part.

[0015] In order to better realize the present application, further optimization is made in the above structure, the silencer device also includes a flame indicating part, the flame indicating part is a tubular structure with two ends passing through, and the end of the flame indicating part is connected to the small end of the silencer body.

[0016] In order to better realize the present application, further optimization is made in the above structure, and the silencer body and the flame indicating part are integrally formed components.

[0017] In order to better realize the present application, further optimization is made in the above structure, and the flame indicating part is made of metal material.

[0018] In order to better realize the present application, further optimization is made in the above structure, and the flame indicating part is made of high temperature resistant glass.

[0019] On the other hand, the present application also provides an ignition nozzle indicator, comprising an indicator body and the above-mentioned silencer;

[0020] The small end of the silencer body is sleeved on the ignition end of the indicator body.

[0021] It can be seen from the above technical solution that the silencer body in the silencer device provided by the present application is installed at the ignition end of the indicator body, and the silencer body can isolate the high-speed plasma ejected from the indicator body from the outside atmosphere to prevent it from directly impacting the air and generating strong noise; at the same time, the air sucked into the silencer body can reduce the temperature and kinetic energy of the plasma to weaken the impact force of the plasma, thereby reducing the noise generated by the indicator body during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1It is a structural schematic diagram of an ignition nozzle indicator in the prior art.

[0023] Figure 2 This is a schematic diagram of the structure of the silencer provided in this application.

[0024] Figure 3 This is a schematic diagram of the structure of the ignition nozzle indicator provided in this application.

[0025] Explanation of the reference numerals: 1-silencer body; 2-air intake pipe, 21-flow regulating valve; 3-buffer part, 31-perforation; 4-flame indicating part; 5-indicator body; 6-premixed gas pipeline; 7-ignition hole. DETAILED DESCRIPTION

[0026] In order to enable technicians in the technical field to which the present application belongs to understand the present application more clearly, the technical solution of the present application is described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0027] In the examples of this application, see Figure 2 The silencer device comprises a silencer body 1 and an air intake duct 2; wherein,

[0028] The silencer body 1 is a tubular structure, with both ends connected, and its connecting end is used to communicate with the ignition end of the indicator body 5;

[0029] The gas outlet end of the gas inlet pipe 2 is communicated with the interior of the muffler body 1 , and is used to provide gas for reducing the flow rate of plasma into the interior of the muffler body 1 .

[0030] In some embodiments, the air intake pipe 2 is provided with a flow regulating valve 21 for regulating the gas flow, and the amount of air entering the silencer body 1 can be adjusted through the flow regulating valve 21;

[0031] It can be seen from the above technical solution that when the silencing device provided by the present application is in use, the silencing body 1 is installed at the ignition end of the indicator body 5. The silencing body 1 isolates the high-speed plasma ejected from the indicator body 5 from the outside atmosphere to prevent it from directly impacting the air and generating strong noise.

[0032] The high-speed plasma ejected from the indicator body 5 will carry away the gas molecules inside the silencer body 1, forming a negative pressure inside the silencer body 1, and the air will be sucked into the silencer body 1 through the air intake pipe 2. The air intake flow rate is controlled by the opening of the flow regulating valve 21. The air entering the silencer body 1 can reduce the temperature and kinetic energy of the plasma, so as to weaken the impact force of the plasma, thereby reducing the noise generated by the indicator body 5 during operation.

[0033] In actual use, if a large amount of air enters the silencer body 1, the plasma and the air will collide violently, and at the same time, the pressure inside the silencer body 1 will increase, causing surging noise inside the silencer body 1, and the noise will become louder and louder. In order to avoid the above problems, a flow regulating valve 21 is provided on the air intake pipe 2, and the amount of air entering the silencer body 1 is adjusted by the flow regulating valve 21, so that the amount of air entering the silencer body 1 can reduce the temperature of the plasma and the effect of the kinetic energy of the plasma, and will not cause surging.

[0034] At the same time, when in use, it is necessary to determine the optimal opening of the flow regulating valve 21 (the indicator body 5 generates the least noise when working) by repeatedly adjusting the opening of the flow regulating valve 21, because when the opening of the flow regulating valve 21 is too small, less air enters the interior of the silencer body 1, and the impact on the kinetic energy and flow rate of the plasma is small, and the silencer effect cannot meet the design requirements; when the opening of the flow regulating valve 21 is too large, the above-mentioned surge situation will occur; therefore, the opening can be adjusted to the appropriate position by repeated adjustment.

[0035] In some embodiments, the outlet end of the air inlet pipe 2 is arranged close to the connection end of the silencer body 1. The kinetic energy of the plasma at this position is higher than the kinetic energy of the end of the silencer body 1 away from the indicator body 5. The air introduced here has the greatest impact on the temperature and flow rate of the plasma, and the silencer effect is the best. Preferably, the distance between the outlet end of the air inlet pipe 2 and the connection end of the silencer body 1 is 10 cm.

[0036] In some embodiments, the caliber of the air inlet end of the silencer body 1 is smaller than the caliber of the air outlet end of the silencer body 1; preferably, the silencer body 1 is a conical structure; the small end of the silencer body 1 is connected to the indicator body 5, and the large end thereof is provided with a buffer portion 3 for slowing down the flow rate of the mixed airflow (airflow mixed with plasma);

[0037] When the mixed gas flows through the buffer portion 3, the buffer portion 3 can decelerate the mixed gas flow for a second time, and at the same time make the mixed gas flow velocity at the large end of the silencer body 1 more uniform, thereby further reducing the noise generated by the indicator body 5 during operation.

[0038] In some embodiments, the buffer portion 3 is a plate-like structure, the shape of the outer edge of which matches the opening shape of the large end of the muffler body 1, the buffer portion 3 is coaxially mounted on the large end of the muffler body 1, and the buffer portion 3 is provided with a plurality of through holes 31 connecting the inside of the muffler body 1 and the outside of the muffler body 1, and the axis of the through hole 31 is parallel to the axis of the buffer portion 3;

[0039] Since the silencer body 1 is a conical structure, the flow velocity of the mixed airflow at various positions thereof is different; the buffer portion 3 of this structure can slow down the flow velocity of the mixed airflow and make the mixed airflow pass through the above-mentioned perforations 31 evenly to achieve the effect of reducing noise.

[0040] In some embodiments, the silencer device also includes a flame indicator 4, which is a tubular structure with two ends passed through. The end of the flame indicator 4 is connected to the small end of the silencer body 1. The flame condition at the fire outlet of the indicator body 5 can be observed through the flame indicator 4 to better understand the combustion state of the ignition burner inside the annealing furnace furnace.

[0041] In some embodiments, the flame indicator 4 is made of metal material, and the silencer body 1 and the flame indicator 4 are an integrally formed component;

[0042] During operation, plasma continuously heats the conical silencer body 1. At the same time, no air enters the small end of the silencer body 1, and its temperature is the highest. If the flame indicator 4 is burned red, it indicates that the ignition burner in the annealing furnace is burning normally; if the flame indicator 4 is not burned red, it indicates that the ignition burner is not burning.

[0043] In some embodiments, the flame indicator 4 is made of high temperature resistant glass; the high temperature resistant glass can withstand the high temperature generated by the continuous heating of the conical silencer body 1 by the plasma, and the flame condition at the fire outlet of the indicator body 5 can be intuitively seen through the flame indicator 4, so as to better understand the combustion state of the ignition burner.

[0044] It should be noted that the above-mentioned high temperature resistant glass is a special glass that can reach or withstand the corresponding temperature and pressure level and applicable medium under certain temperature, medium (acid and alkali resistance) and pressure level conditions. It is generally made of high-purity siliceous mineral materials and refined by high temperature resistance. It can still maintain the original permeability and transparency of the glass in a high temperature environment. High temperature resistant glass has the characteristics of high transparency, high temperature resistance, good thermal stability, stable chemical properties, etc. It is an indispensable key component of industrial automation production lines and is widely used in pressure vessel manufacturing plants, steel, metallurgy, petrochemical, military industry, lamps and other industries.

[0045] In this embodiment, the above-mentioned high temperature resistant glass is No. 4 material high temperature resistant glass. This type of glass has the highest heat resistance among all high temperature resistant glass products. It can work in a high temperature resistant environment of 1200℃ for a long time without fading, deformation or softening. It is an essential window glass for large-scale high temperature resistant open flame equipment.

[0046] Experiments have shown that the noise reduction effect of the silencer is significant, and the noise generated by the indicator body 5 during operation from 75 to 85 decibels can be reduced to 45 to 55 decibels, thereby reducing the impact on the physical and mental health of workers.

[0047] On the basis of the above-mentioned silencer, the present application also provides an ignition nozzle indicator, comprising an indicator body 5 and the above-mentioned silencer;

[0048] The small end of the silencer body 1 is sleeved on the fire outlet end of the indicator body 5 .

[0049] During use, the worker can ignite the indicator body 5 through the ignition hole 7, and the premixed gas pipeline 6 provides premixed gas to the inside of the indicator body 5, so that the combustion state of the indicator body 5 is always the same as the combustion state of the ignition burner in the furnace. The noise at the ignition end of the indicator body 5 can be reduced by the silencer body 1 to reduce the generation of noise pollution and the impact of noise on the physical and mental health of the workers.

[0050] Through the above embodiments, the present application has the following beneficial effects or advantages:

[0051] 1) In the silencing device, the silencing body 1 is installed at the ignition end of the indicator body 5. The silencing body 1 can isolate the high-speed plasma ejected from the indicator body 5 from the outside atmosphere to prevent it from directly impacting the air and generating strong noise; at the same time, the air sucked into the silencing body 1 can reduce the temperature and kinetic energy of the plasma to weaken the impact force of the plasma, thereby reducing the noise generated by the indicator body 5 during operation.

[0052] 2) The buffer portion 3 disposed at the large end of the silencer body 1 of the silencer device can decelerate the mixed airflow for a second time, and at the same time make the velocity of the mixed airflow at the large end of the silencer body 1 more uniform, thereby further reducing the noise at the fire outlet of the indicator body 5.

[0053] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0054] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A silencing device, characterized in that: It comprises a silencer body (1) and an air intake pipe (2); The muffler body (1) is a tubular structure with two ends connected; The gas outlet end of the gas inlet pipe (2) is in communication with the interior of the muffler body (1), and is used to provide gas for reducing the flow rate of plasma into the interior of the muffler body (1).

2. The silencing device according to claim 1, characterized in that: The air outlet end of the air inlet pipe (2) is arranged close to the connection end of the silencer body (1).

3. The silencing device according to claim 2, characterized in that: The air inlet pipeline (2) is provided with a flow regulating valve (21) for regulating the gas flow.

4. The silencing device according to claim 1, characterized in that: The caliber of the air inlet end of the silencer body (1) is smaller than the caliber of the air outlet end of the silencer body (1), and the silencer device further comprises a buffer portion (3) for slowing down the flow rate of the mixed air flow, and the buffer portion (3) is arranged at the large end of the silencer body (1).

5. The silencing device according to claim 4, characterized in that: The buffer portion (3) is a plate-shaped structure, and is provided with a plurality of through holes (31) communicating the interior of the silencer body (1) and the exterior of the silencer body (1).

6. The silencing device according to any one of claims 1 to 5, characterized in that: The silencer device further comprises a flame indicating portion (4), which is a tubular structure with two ends penetrating therethrough, and the end of the flame indicating portion (4) is in communication with the small end of the silencer body (1).

7. The silencing device according to claim 6, characterized in that: The silencer body (1) and the flame indicating portion (4) are integrally formed components.

8. The silencing device according to claim 7, characterized in that: The flame indicating part (4) is made of metal material.

9. The silencing device according to claim 6, characterized in that: The flame indicating portion (4) is made of high temperature resistant glass.

10. An ignition tip indicator, characterized in that: comprising an indicator body (5) and a silencer as claimed in any one of claims 1 to 9; The small end of the silencer body (1) is sleeved on the fire outlet end of the indicator body (5).

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