Exhaust silencer for chemical ventilation pipeline

Abstract

The utility model discloses a chemical ventilation pipeline exhaust silencer which comprises an exhaust pipe, and three mounting plates are evenly and fixedly connected to the outer portion of the exhaust pipe. And the silencing assembly comprises a silencing pipe, and the silencing pipe is fixedly connected to the right end of the exhaust pipe. In the using process, the whole device is connected with a ventilation pipeline through the combination of the exhaust pipe and the mounting plate, in the gas discharging process, the noise reduction and elimination effect can be achieved in the gas discharging process through the combination of the noise elimination plate and the noise elimination holes, and meanwhile the noise reduction effect can be achieved through the combination of the sound absorption cotton and the sound absorption plate. According to the air purification device, the air can enter the purification cylinder in the air emission process, dust impurities in the exhausted air can be filtered through two pieces of filter cotton, air pollution caused by the fact that dust is directly discharged into air is avoided, meanwhile, peculiar smell in the exhausted air can be adsorbed through an activated carbon layer, and the air purification effect is improved. And the purity of gas emission can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust silencers for chemical ventilation ducts, in particular to an exhaust silencer for chemical ventilation ducts. Background Art

[0002] Chemical industry is the technology of using chemical methods to change the composition or structure of substances, or to synthesize new substances. Early chemical industry was mainly small-scale production in the form of handicraft workshops. With the advancement of technology, it gradually evolved into large-scale factory production. The pollutants that may be produced in the chemical production process are of many types, large quantities and high toxicity. Therefore, environmental protection measures are crucial, so ventilation ducts need to be connected and used.

[0003] Under the existing technology, chemical ventilation ducts require a large number of air pumps to rotate the air because there are more harmful gases in the chemical plant. However, when the air pump is working, the noise generated by the air pump studio in the pipeline is multiplied due to the sound-collecting effect of the pipeline, causing noise pollution to the surrounding production and living environment, affecting people's physical and mental health. Therefore, it is necessary to provide a new chemical ventilation duct exhaust muffler to solve the above technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide an exhaust muffler for a chemical ventilation duct, which has the advantages of silencing and reducing noise, filtering and improving environmental protection, and solves the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a chemical ventilation duct exhaust silencer, comprising: an exhaust pipe, three mounting plates are evenly fixedly connected to the outside of the exhaust pipe; a silencer assembly, the silencer assembly includes a silencer pipe, and the silencer pipe is fixedly connected to the right end of the exhaust pipe. During use, the exhaust pipe and the mounting plate are combined to connect the overall device to the ventilation duct. During gas discharge, the silencer plate and the silencer hole are combined to achieve the effect of noise reduction and silencing during gas discharge. At the same time, the sound-absorbing cotton and the sound-absorbing plate are combined to assist the silencer plate in improving the purpose of noise reduction. During gas discharge, it will enter the interior of the purification cylinder, and the dust impurities in the exhaust gas can be filtered through the two filter cottons to avoid the dust being directly discharged into the air to cause air pollution. At the same time, the activated carbon layer can adsorb the odor in the exhaust gas to improve the purity of the gas emission.

[0006] Preferably, the silencer assembly also includes two silencer plates, both of which are fixedly connected to the inside of the silencer pipe, and both of which have silencer holes evenly opened inside. By using the silencer plates and the silencer holes in combination, noise reduction and speed reduction can be achieved during the gas discharge process, thereby improving the silencer effect of the overall device.

[0007] Preferably, the interior of the silencer pipe is fixedly connected with sound-absorbing cotton, and the interior of the sound-absorbing cotton is provided with a sound-absorbing board. The sound-absorbing cotton and the sound-absorbing board are used in combination to assist the silencer board in performing sound insulation and noise reduction during the exhaust process.

[0008] Preferably, the internal thread of the mounting plate is rotatably connected to a screw, and the outer sleeve of the screw is provided with a limit spring. The limit spring can limit the screw after the internal thread of the mounting plate is rotated, thereby improving the limiting effect of the overall device.

[0009] Preferably, the limit spring is made of stainless steel, and the outside of the screw is coated with lubricating liquid. The elastic force of the limit spring can act in reverse on the screw, making the screw more stable after installation.

[0010] Preferably, the right end of the silencer pipe is fixedly connected to a connecting pipe, and the right end of the connecting pipe is fixedly connected to a purification cylinder. The connecting pipe allows the gas to smoothly enter the interior of the purification cylinder for purification before being discharged.

[0011] Preferably, two filter cottons are fixedly connected to the inside of the purification cylinder, and an activated carbon layer is commonly provided in the middle of the two filter cottons. The dust impurities in the exhaust gas can be filtered through the two filter cottons to prevent the dust from being directly discharged into the air and causing air pollution. At the same time, the odor in the exhaust gas can be adsorbed through the activated carbon layer.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. During the use of the utility model, the exhaust pipe and the mounting plate are combined to connect the entire device to the ventilation duct. During the gas discharge process, the silencer plate and the silencer hole are combined to achieve the effect of noise reduction and silencing. At the same time, the combination of sound-absorbing cotton and the sound-absorbing plate can assist the silencer plate in improving the purpose of noise reduction.

[0014] 2. In the process of gas emission, the utility model will enter the interior of the purification cylinder, and the dust impurities in the emission gas can be filtered through two filter cottons to prevent the dust from being directly discharged into the air and causing air pollution. At the same time, the odor in the emission gas can be adsorbed through the activated carbon layer, which can improve the purity of the gas emission. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the external structure of an exhaust muffler for a chemical ventilation duct according to the present utility model;

[0016] Figure 2 This is a schematic diagram of the left side structure of an exhaust pipe of an exhaust muffler for a chemical ventilation duct according to the present invention;

[0017] Figure 3 This is a schematic diagram of the internal structure of a muffler pipe of an exhaust muffler for a chemical ventilation duct according to the present utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of a purification cylinder of an exhaust muffler for a chemical ventilation duct according to the present utility model.

[0019] In the figure: 1. Exhaust pipe; 2. Silencer pipe; 3. Connecting pipe; 4. Purification cylinder; 5. Mounting plate; 6. Screw; 7. Limit spring; 8. Sound-absorbing cotton; 9. Sound-absorbing board; 10. Silencer board; 11. Silencer hole; 12. Filter cotton; 13. Activated carbon layer. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1 to 4 The utility model provides a technical solution: a chemical ventilation duct exhaust muffler, comprising: an exhaust pipe 1, three mounting plates 5 are evenly fixedly connected to the outside of the exhaust pipe 1; a muffler assembly, the muffler assembly includes a muffler pipe 2, and the muffler pipe 2 is fixedly connected to the right end of the exhaust pipe 1. During use, the exhaust pipe 1 and the mounting plate 5 are combined to connect the entire device to the ventilation duct. During gas discharge, the muffler plate 10 and the muffler hole 11 are combined to achieve the effect of noise reduction and noise reduction during gas discharge. At the same time, the combination of sound-absorbing cotton 8 and sound-absorbing plate 9 can assist the muffler plate 10 in improving the purpose of noise reduction. During gas discharge, it will enter the interior of the purification cylinder 4, and the two filter cottons 12 can filter the dust and impurities in the exhaust gas to avoid the dust being directly discharged into the air to cause air pollution. At the same time, the activated carbon layer 13 can adsorb the odor in the exhaust gas, which can improve the purity of the gas emission.

[0022] The silencer assembly also includes two silencer plates 10, both of which are fixedly connected to the inside of the silencer pipe 2. Silencer holes 11 are evenly opened inside the two silencer plates 10. By combining the silencer plates 10 and the silencer holes 11, noise reduction and speed reduction can be achieved during the gas discharge process, thereby improving the silencer effect of the overall device.

[0023] The interior of the silencer pipe 2 is fixedly connected with sound-absorbing cotton 8, and the interior of the sound-absorbing cotton 8 is sheathed with a sound-absorbing board 9. The sound-absorbing cotton 8 and the sound-absorbing board 9 are used in combination to assist the silencer board 10 in performing sound insulation and noise reduction processing during the exhaust process.

[0024] The internal thread of the mounting plate 5 is rotatably connected to a screw 6, and a limit spring 7 is sleeved on the outside of the screw 6. The limit spring 7 can limit the screw 6 after the internal thread of the mounting plate 5 is rotated, thereby improving the limiting effect of the overall device.

[0025] The limit spring 7 is made of stainless steel metal, and the outside of the screw 6 is coated with lubricating liquid. The elastic force of the limit spring 7 can act in the opposite direction on the screw 6, making the screw 6 more stable after installation.

[0026] When the chemical ventilation duct exhaust silencer is in use, the exhaust pipe 1 and the mounting plate 5 are combined to connect the entire device to the ventilation duct. During the gas discharge process, the silencer plate 10 and the silencer hole 11 are combined to achieve the effect of noise reduction and silencing during the gas discharge process.

[0027] See also Figures 1 to 4 The utility model provides a technical solution: a chemical ventilation duct exhaust muffler, the right end of the muffler pipe 2 is fixedly connected to a connecting pipe 3, and the right end of the connecting pipe 3 is fixedly connected to a purification cylinder 4. The connecting pipe 3 allows the gas to smoothly enter the interior of the purification cylinder 4 for purification before being discharged.

[0028] Two filter cottons 12 are fixedly connected to the inside of the purification cylinder 4, and an activated carbon layer 13 is commonly provided in the middle of the two filter cottons 12. The two filter cottons 12 can filter the dust impurities in the exhaust gas to prevent the dust from being directly discharged into the air and causing air pollution. At the same time, the activated carbon layer 13 can adsorb the odor in the exhaust gas.

[0029] When the chemical ventilation duct exhaust muffler is in use, the two filter cottons 12 can filter dust impurities in the exhaust gas to prevent the dust from being directly discharged into the air to cause air pollution. At the same time, the activated carbon layer 13 can absorb odors in the exhaust gas.

[0030] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and drawings can also be directly processed according to existing technical common sense without any doubt. At the same time, the connection method of each component adopts the conventional means mature in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so no specific description will be given here.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chemical ventilation duct exhaust muffler, characterized in that: include: An exhaust pipe (1), wherein three mounting plates (5) are evenly and fixedly connected to the outside of the exhaust pipe (1); A silencer assembly comprises a silencer pipe (2), wherein the silencer pipe (2) is fixedly connected to the right end of the exhaust pipe (1).

2. The chemical ventilation duct exhaust muffler according to claim 1, characterized in that: The muffler assembly further comprises two muffler plates (10), both of which are fixedly connected to the interior of the muffler pipe (2), and both of which are evenly provided with muffler holes (11) inside.

3. The chemical ventilation duct exhaust muffler according to claim 1, characterized in that: The interior of the muffler pipe (2) is fixedly connected with sound-absorbing cotton (8), and the interior of the sound-absorbing cotton (8) is sheathed with a sound-absorbing board (9).

4. The chemical ventilation duct exhaust muffler according to claim 1, characterized in that: The internal thread of the mounting plate (5) is rotatably connected to a screw (6), and the outer portion of the screw (6) is sleeved with a limit spring (7).

5. The chemical ventilation duct exhaust muffler according to claim 4, characterized in that: The limit spring (7) is made of stainless steel, and the outside of the screw (6) is coated with lubricating liquid.

6. The chemical ventilation duct exhaust muffler according to claim 1, characterized in that: The right end of the muffler pipe (2) is fixedly connected to a connecting pipe (3), and the right end of the connecting pipe (3) is fixedly connected to a purification cylinder (4).

7. The chemical ventilation duct exhaust muffler according to claim 6, characterized in that: Two filter cottons (12) are fixedly connected to the interior of the purification cylinder (4), and an activated carbon layer (13) is commonly clamped between the two filter cottons (12).

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