Noise-reduction exhausted waste gas treatment device for laboratory

Abstract

The utility model relates to the technical field of waste gas treatment equipment, in particular to a noise-reduction exhausted waste gas treatment device for a laboratory, which comprises a box body, a gas inlet pipe is arranged at the top of the box body, and the gas inlet pipe is communicated with the inside of the box body; a noise reduction cavity, a pretreatment cavity, an adsorption cavity and an exhaust cavity are sequentially formed in the box body from left to right, the noise reduction cavity, the pretreatment cavity, the adsorption cavity and the exhaust cavity are separated through partition plates, and opening structures are arranged on the partition plates; multiple sets of noise reduction plates are arranged in the noise reduction cavity, the multiple sets of inclined noise reduction plates are arranged in the noise reduction cavity, the adjacent noise reduction plates form a Z-shaped waste gas channel, in combination with sound absorption holes in the surfaces of the noise reduction plates and noise reduction cotton on the side walls, waste gas is reflected many times in the channel, noise is effectively absorbed, and compared with a traditional noise reduction structure, the design is simplified; the noise reduction effect is greatly improved while the cost is reduced, and the interference of waste gas emission noise on a laboratory and the surrounding environment is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of waste gas treatment equipment, specifically a laboratory noise reduction exhaust gas treatment device. Background Technology

[0002] During the daily operation of a laboratory, a large amount of waste gas is generated. This waste gas often contains a variety of harmful components, such as volatile chemical reagents and dust. If it is discharged directly without treatment, it will cause serious harm to the environment and human health. At the same time, the operation of equipment such as fans during the emission of waste gas will generate a lot of noise, which will not only affect the working environment of the laboratory, but also cause noise pollution to the surrounding area.

[0003] Currently available laboratory exhaust gas treatment devices on the market typically only focus on exhaust gas treatment functions, while neglecting noise reduction. Alternatively, their noise reduction structures are complex, costly, and have unsatisfactory noise reduction effects. Furthermore, some noise reduction exhaust gas treatment devices have incomplete exhaust gas treatment processes, making it difficult to effectively remove various pollutants from the exhaust gas. Therefore, this utility model proposes a laboratory noise reduction exhaust gas treatment device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a noise-reducing exhaust gas treatment device for laboratory use, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a laboratory noise reduction exhaust gas treatment device, comprising a housing, wherein an air inlet pipe is provided on the top of the housing and the air inlet pipe is connected to the interior of the housing;

[0006] The interior of the box is provided with a noise reduction chamber, a pretreatment chamber, an adsorption chamber and an exhaust chamber from left to right. The noise reduction chamber, the pretreatment chamber, the adsorption chamber and the exhaust chamber are separated by a partition, and the partition is provided with an opening structure.

[0007] The noise reduction chamber is equipped with multiple noise reduction plates, the pretreatment chamber is equipped with a spray device and a filter screen, the adsorption chamber is filled with an adsorbent, and the exhaust chamber is equipped with a fan and an exhaust pipe. The exhaust pipe passes through the right side wall of the box and extends to the outside of the box.

[0008] Preferably, the noise reduction plates are evenly distributed, and the noise reduction plates are inclinedly arranged in the noise reduction cavity, forming a Z-shaped exhaust channel between adjacent noise reduction plates. The surface of the noise reduction plates is provided with sound absorption holes, and sound-absorbing cotton is provided between the noise reduction plates and the side wall of the noise reduction cavity.

[0009] Preferably, the spraying device includes multiple nozzles and spray pipes. The spray pipes are horizontally arranged at the top of the pretreatment chamber, and the multiple nozzles are evenly distributed at the bottom of the spray pipes. The spray pipes are connected to an external water source through pipes. The filter screen is arranged below the spray pipes and is inclined, with its lower end close to the partition between the pretreatment chamber and the adsorption chamber.

[0010] Preferably, the adsorbent is activated carbon particles, and a detachable grid plate is provided at the bottom of the adsorption chamber to support the activated carbon particles.

[0011] Preferably, the fan is located at one end of the exhaust pipe near the adsorption chamber, the air outlet of the fan is connected to the exhaust pipe, and the exhaust pipe is wrapped with sound insulation cotton.

[0012] Preferably, the noise reduction board is made of sound-absorbing material, which is sound-absorbing cotton.

[0013] Preferably, the pretreatment chamber has a drain outlet on its side wall, the drain outlet is connected to a drain pipe, and the drain pipe is equipped with a valve.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) By setting up multiple sets of inclined noise reduction plates in the noise reduction cavity, adjacent noise reduction plates form a Z-shaped exhaust gas channel. Combined with the sound absorption holes on the surface of the noise reduction plate and the sound-absorbing cotton on the side wall, the exhaust gas is reflected multiple times in the channel, effectively absorbing noise. Compared with the traditional noise reduction structure, the design is simplified, the cost is reduced, and the noise reduction effect is greatly improved, reducing the noise of exhaust gas emissions from the laboratory and the surrounding environment.

[0016] (2) The spray device and filter screen in the pretreatment chamber can effectively remove dust and water-soluble pollutants from the exhaust gas. Then, the activated carbon particles in the adsorption chamber adsorb the remaining organic pollutants and odors, so as to achieve comprehensive treatment of various harmful components such as chemical reagent volatiles and dust in the exhaust gas, make up for the shortcomings of the existing device, ensure that the exhaust gas meets the emission standards, and reduce the harm to the environment and human health. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the internal structure of the box of this utility model.

[0019] Figure 3 This is a schematic diagram of the filter screen installation structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the noise reduction plate installation structure of this utility model.

[0021] In the diagram: 1. Housing; 2. Air inlet pipe; 3. Noise reduction chamber; 31. Noise reduction panel; 311. Sound absorption hole; 32. Sound insulation cotton; 4. Pretreatment chamber; 41. Nozzle; 42. Spray pipe; 43. Water tank; 44. Filter screen; 5. Adsorption chamber; 51. Adsorbent; 52. Grid plate; 6. Exhaust chamber; 61. Fan; 7. Exhaust pipe; 8. Sound insulation cotton. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1 to 4 This utility model provides a technical solution: a laboratory noise reduction exhaust gas treatment device, including a box 1, an air inlet pipe 2 at the top of the box, the air inlet pipe 2 being connected to the interior of the box 1; the interior of the box 1 is arranged from left to right as follows: a noise reduction chamber 3, a pretreatment chamber 4, an adsorption chamber 5, and an exhaust chamber 6, the noise reduction chamber 3, the pretreatment chamber 4, the adsorption chamber 5, and the exhaust chamber 6 are separated by partitions, and the partitions are provided with open structures; the noise reduction chamber 3 is provided with multiple sets of noise reduction plates 31, the pretreatment chamber 4 is provided with a spray device and a filter screen 44, the adsorption chamber 5 is filled with an adsorbent 51, and the exhaust chamber 6 is provided with a fan 61 and an exhaust pipe 7, the exhaust pipe 7 penetrating the right side wall of the box 1 and extending to the outside of the box 1.

[0024] By setting multiple sets of inclined noise reduction plates 31 in the noise reduction cavity 3, adjacent noise reduction plates 31 form a Z-shaped exhaust gas channel. Combined with the sound absorption holes 311 on the surface of the noise reduction plate 31 and the sound-absorbing cotton 32 on the side wall, the exhaust gas is reflected multiple times in the channel, effectively absorbing noise. Compared with the traditional noise reduction structure, the design is simplified, the cost is reduced, and the noise reduction effect is greatly improved, reducing the interference of exhaust gas emission noise on the laboratory and the surrounding environment.

[0025] Please see Figures 1 to 4 Multiple noise reduction plates 31 are evenly distributed, and the noise reduction plates 31 are inclinedly arranged in the noise reduction cavity 3. A Z-shaped exhaust channel is formed between adjacent noise reduction plates 31. Sound absorption holes 311 are provided on the surface of the noise reduction plates 31, and sound-absorbing cotton 32 is provided between the noise reduction plates 31 and the side wall of the noise reduction cavity 3.

[0026] Please see Figures 1 to 4The spraying device includes multiple nozzles 41 and spray pipes 42. The spray pipes 42 are horizontally arranged at the top of the pretreatment chamber 4, and the multiple nozzles 41 are evenly distributed at the bottom of the spray pipes 42. The spray pipes 42 are connected to the water tank 43 through pipes. The filter screen 44 is arranged below the spray pipes 42. The filter screen 44 is inclined, with its lower end close to the partition between the pretreatment chamber 4 and the adsorption chamber 5.

[0027] Please see Figures 1 to 4 The adsorbent 51 is activated carbon particles, and a detachable grid plate 52 is provided at the bottom of the adsorption chamber 5 to support the activated carbon particles.

[0028] Please see Figures 1 to 4 The fan 61 is located at one end of the exhaust pipe 7 near the adsorption chamber 5. The air outlet of the fan 61 is connected to the exhaust pipe 7. The exhaust pipe 7 is wrapped with sound insulation cotton 8.

[0029] Please see Figures 1 to 4 The noise reduction panel 31 is made of sound-absorbing material, which is sound-absorbing cotton.

[0030] Please see Figures 1 to 4 The pretreatment chamber 4 has a drain outlet on its side wall, which is connected to a drain pipe. The drain pipe is equipped with a valve. During operation, dust, particulate matter and other impurities will accumulate in the pretreatment chamber 4. The drain outlet can periodically or as needed to discharge these impurities to prevent them from accumulating in the chamber and blocking the internal channels.

[0031] During use, the exhaust gas generated in the laboratory enters the noise reduction chamber 3 inside the housing 1 through the air inlet pipe 2. Because multiple sets of noise reduction plates 31 are tilted and evenly distributed within the noise reduction chamber 3, a Z-shaped exhaust gas channel is formed between adjacent noise reduction plates 31. The exhaust gas flows in a tortuous manner within the channel, making full contact with the sound-absorbing holes 311 on the surface of the noise reduction plates 31, thus absorbing sound energy. Simultaneously, the sound-absorbing cotton 32 between the noise reduction plates 31 and the side walls of the noise reduction chamber 3 further absorbs residual noise, achieving preliminary noise reduction treatment of the exhaust gas. After noise reduction, the exhaust gas enters the pretreatment chamber 4 through the opening structure on the partition. At this time, the spray pipe 42, horizontally positioned at the top of the pretreatment chamber 4, sprays water downwards through the evenly distributed nozzles 41 at its bottom, rinsing the exhaust gas and removing dust and water-soluble pollutants contained in the exhaust gas. Subsequently, the exhaust gas passes through the tilted filter screen 44, which intercepts remaining impurities, while the wastewater flows down the lower end of the filter screen 44. The waste gas flows towards the partition between the pretreatment chamber 4 and the adsorption chamber 5, and finally exits through the drain port on the side wall of the pretreatment chamber 4, through the drain pipe and valve. The pretreated waste gas passes through the partition opening and enters the adsorption chamber 5. The activated carbon particles filled in the adsorption chamber 5 use their rich pore structure and large specific surface area to adsorb the residual organic pollutants and odors in the waste gas, further purifying the waste gas. The detachable grid plate 52 supports the activated carbon particles, making it easy to replace the ineffective activated carbon regularly to ensure the adsorption effect. The waste gas purified by adsorption enters the exhaust chamber 6. The fan 61 set at the end of the exhaust pipe 7 near the adsorption chamber 5 starts to provide power for the exhaust gas to be discharged. The waste gas enters the exhaust pipe 7 under the action of the fan 61. During this process, the sound insulation cotton 8 wrapped around the outside of the exhaust pipe 7 can reduce the noise generated by the operation of the fan 61 to be transmitted through the exhaust pipe 7. Finally, the waste gas is discharged outside the box 1 through the exhaust pipe 7.

[0032] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laboratory noise reduction exhaust gas treatment device, comprising a housing (1), wherein an air inlet pipe (2) is provided on the top of the housing, the air inlet pipe (2) being connected to the interior of the housing (1), characterized in that: The box (1) is provided with a noise reduction chamber (3), a pretreatment chamber (4), an adsorption chamber (5) and an exhaust chamber (6) from left to right. The noise reduction chamber (3), the pretreatment chamber (4), the adsorption chamber (5) and the exhaust chamber (6) are separated by partitions, and the partitions are provided with open structures. The noise reduction chamber (3) is equipped with multiple noise reduction plates (31), the pretreatment chamber (4) is equipped with a spray device and a filter screen (44), the adsorption chamber (5) is filled with an adsorbent (51), the exhaust chamber (6) is equipped with a fan (61) and an exhaust pipe (7), and the exhaust pipe (7) penetrates the right side wall of the box (1) and extends to the outside of the box (1).

2. The laboratory noise reduction exhaust gas treatment device according to claim 1, characterized in that: Multiple sets of noise reduction plates (31) are evenly distributed, and the noise reduction plates (31) are inclinedly arranged in the noise reduction cavity (3). A Z-shaped exhaust channel is formed between adjacent noise reduction plates (31). The surface of the noise reduction plate (31) is provided with sound absorption holes (311), and sound-absorbing cotton (32) is provided between the noise reduction plate (31) and the side wall of the noise reduction cavity (3).

3. The laboratory noise reduction exhaust gas treatment device according to claim 1, characterized in that: The spraying device includes multiple nozzles (41) and spray pipes (42). The spray pipes (42) are horizontally arranged at the top of the pretreatment chamber (4). The multiple nozzles (41) are evenly distributed at the bottom of the spray pipes (42). The spray pipes (42) are connected to the water tank (43) through pipes. The filter screen (44) is arranged below the spray pipes (42). The filter screen (44) is inclined, with its lower end close to the partition between the pretreatment chamber (4) and the adsorption chamber (5).

4. The laboratory noise reduction exhaust gas treatment device according to claim 1, characterized in that: The adsorbent (51) is activated carbon particles, and a detachable grid plate (52) is provided at the bottom of the adsorption chamber (5). The grid plate (52) is used to support the activated carbon particles.

5. The laboratory noise reduction exhaust gas treatment device according to claim 1, characterized in that: The fan (61) is located at one end of the exhaust pipe (7) near the adsorption chamber (5). The air outlet of the fan (61) is connected to the exhaust pipe (7). The exhaust pipe (7) is wrapped with sound insulation cotton (8).

6. The laboratory noise reduction exhaust gas treatment device according to claim 2, characterized in that: The noise reduction board (31) is made of sound-absorbing material, which is sound-absorbing cotton.

7. The laboratory noise reduction exhaust gas treatment device according to claim 3, characterized in that: The pretreatment chamber (4) has a drain outlet on its side wall, and the drain outlet is connected to a drain pipe, which is equipped with a valve.

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