Fabricated smoke control and exhaust system silencer
The modularly designed prefabricated smoke extraction system silencer, utilizing a combination of silencing plates and silencing mesh, solves the problems of poor silencing effect and difficult assembly of existing silencers, achieving efficient silencing and simplified assembly, and improving product quality.
Patent Information
- Application Number
- CN202422711336.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-07
AI Technical Summary
Existing silencers have a simple structure, limited noise reduction effect, and are difficult to assemble, resulting in low efficiency and affecting product quality.
The modular prefabricated smoke extraction system silencer includes a shell, an air inlet end cover, an exhaust end cover, a silencer structure, and silencer cotton. Through the combination of silencer plates and silencer nets, multiple silencer cavities are formed. The silencer cotton and silencer nets absorb sound waves, achieving modular assembly.
It improves noise reduction, simplifies the assembly process, and significantly improves on-site assembly efficiency and product quality.
Smart Images
Figure CN223499772U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of silencer technology, and in particular to a prefabricated smoke exhaust system silencer. Background Technology
[0002] Noise pollution not only negatively impacts human health but also disrupts normal work and life. Particularly in transportation, industrial production, machinery, and construction, the generation and propagation of noise adversely affect the environment, work efficiency, and human health. Therefore, the application of noise control technology in various fields is becoming increasingly important. Currently, there are no suitable silencers in existing technologies. Silencers are relatively simple in structure, have limited silencing effects, and are difficult to assemble, leading to low efficiency and affecting product quality. Therefore, a prefabricated smoke extraction system silencer is proposed. Utility Model Content
[0003] This utility model addresses the fact that current equipment or existing technology lacks a suitable silencer to solve the aforementioned problems, resulting in poor noise reduction, low efficiency, and difficult assembly during use. It provides a prefabricated smoke extraction system silencer with good noise reduction performance, modular assembly to improve assembly efficiency and product quality, effectively solving the problems mentioned in the background section.
[0004] The technical solution adopted by this utility model to solve the above problems is as follows:
[0005] A prefabricated smoke extraction system silencer includes a housing. An air inlet end cover is installed on one side of the housing, and an exhaust end cover is installed on the other side of the housing. The air inlet end cover has an assembly port that mates with an air inlet pipe, and the exhaust end cover has an exhaust port. An mounting plate is fixedly mounted on the air inlet pipe. The mounting plate has a connecting hole that mates with a screwing component. The air inlet end cover has a fixing hole that mates with the connecting hole. The screwing component connects with the fixing hole to fix the mounting plate to the air inlet end cover. A silencing structure is also provided inside the housing.
[0006] The noise reduction structure includes a first noise reduction plate and a second noise reduction plate. A first noise reduction cavity is formed between the intake end cover and the first noise reduction plate, a second noise reduction cavity is formed between the first noise reduction plate and the second noise reduction plate, and a third noise reduction cavity is formed between the second noise reduction plate and the exhaust end cover.
[0007] The first muffler is fixedly provided with multiple vent pipes communicating with the exhaust pipe, and the second muffler is provided with through holes that cooperate with the muffler mesh.
[0008] The sound-absorbing mesh has evenly spaced sound-absorbing holes.
[0009] The inner wall of the shell is lined with sound-absorbing cotton.
[0010] Compared with the prior art, this utility model has the following advantages:
[0011] The housing is made of high-strength, corrosion-resistant materials. During assembly, the mounting plate of the exhaust pipe is connected to the intake end cover, one end of the muffler is fixedly connected to the exhaust end cover, and the other end of the muffler is fixedly connected to the through hole of the second muffler. The first muffler is fixedly installed inside the housing, and the exhaust end cover and intake end cover are assembled with the housing. It has a good muffler effect, can be modularly assembled, and has a simple assembly process, which can significantly improve on-site assembly efficiency, reduce process control problems, and thus improve overall production efficiency and product quality. Attached Figure Description
[0012] Figure 1 This is a main view of the silencer of a prefabricated smoke extraction system according to this utility model;
[0013] Figure 2 This is an internal view of the silencer of a prefabricated smoke extraction system according to this utility model;
[0014] Figure 3 This is a schematic diagram of the assembly structure of a prefabricated smoke extraction system silencer according to this utility model;
[0015] The following are the labels in the diagram: 1. Housing; 2. Inlet pipe; 3. Exhaust port; 4. First silencer chamber; 5. Second silencer chamber; 6. Third silencer chamber; 7. Exhaust end cap; 8. Silencing mesh; 9. Second silencer plate; 10. Vent pipe; 11. Tightening component; 12. Inlet end cap; 13. Connecting hole; 15. Vent hole; 17. Fixing hole; 18. Assembly port; 19. First silencer plate; 23. Mounting plate. Detailed Implementation
[0016] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0017] A prefabricated smoke exhaust system silencer includes a housing 1. An air inlet end cap 12 is installed on one side of the housing 1, and an exhaust end cap 7 is installed on the other side of the housing 1. The air inlet end cap 12 has an assembly port 18 that cooperates with the air inlet pipe 2, and the exhaust end cap 7 has an exhaust port 3. The air inlet pipe 2 is fixedly provided with an mounting piece 23. The mounting piece 23 has a connecting hole 13 that cooperates with a screwing component 11. The air inlet end cap 12 has a fixing hole 17 that cooperates with the connecting hole 13. The screwing component 11 connects with the fixing hole 17 to fix the mounting piece 23 to the air inlet end cap 12. The housing 1 also has a sound-absorbing structure.
[0018] like Figure 1-3As shown, the housing 1 is the main external structure of the muffler. The housing is typically made of metals such as stainless steel or aluminum alloy, providing strength and corrosion resistance. The intake end cap 12 is where gas enters the muffler, and the exhaust end cap 7 is where the muffled gas exits. The intake end cap 12 and exhaust end cap 7 are connected to the housing 1 with external threads, while the housing 1 has internal threads. Assembly is achieved by screwing the intake end cap 12 and exhaust end cap 7 into the housing 1, resulting in high assembly efficiency. The intake end cap 12 has an assembly port 18 that mates with the intake pipe 2. To facilitate the connection of the intake pipe 2, an exhaust port 3 is provided on the exhaust end cap 7. Gas enters the housing 1 from the intake pipe 2 and is discharged from the exhaust port 3 after being silenced. To facilitate the assembly of the intake pipe 2 and the intake end cap 12, a mounting plate 23 is fixedly provided on the exhaust pipe 2. Multiple connection holes 13 are provided on the mounting plate 23, and multiple fixing holes 17 are provided on the intake end cap 12. During assembly, the intake pipe 2 and the intake end cap 12 are fixedly connected using a screwdriver 11, which improves the work efficiency of the staff. To further reduce the noise generated by the airflow, a sound-absorbing structure is provided inside the housing 1.
[0019] The noise reduction structure includes a first noise reduction plate 19 and a second noise reduction plate 9. A first noise reduction cavity 4 is formed between the intake end cover 12 and the first noise reduction plate 19, a second noise reduction cavity 5 is formed between the first noise reduction plate 19 and the second noise reduction plate 9, and a third noise reduction cavity 6 is formed between the second noise reduction plate 9 and the exhaust end cover 12.
[0020] The noise reduction structure is set inside the housing 1, including a first noise reduction plate 19 and a second noise reduction plate 9. When the airflow passes through the noise reduction plate, the sound is dispersed and reflected, thereby reducing the propagation of noise. Multiple noise reduction chambers are set to reduce noise to different degrees. The first noise reduction chamber 4 is formed between the air intake end cover 12 and the first noise reduction plate 19, the second noise reduction chamber 5 is formed between the first noise reduction plate 19 and the second noise reduction plate 9, and the third noise reduction chamber 6 is formed between the second noise reduction plate 9 and the exhaust end cover 12.
[0021] The first muffler 19 is fixedly provided with multiple vent pipes 10 that communicate with the exhaust pipe 2, and the second muffler 9 is provided with through holes 15 that cooperate with the muffler mesh 8.
[0022] The first silencer 19 is fixedly provided with multiple vent pipes 10, which are connected to the air inlet pipe 2. The airflow enters the housing 1 from the air inlet pipe 2, is dispersed and reflected by the first silencer 19, flows in the first silencer cavity 4, and then enters the second silencer cavity 5 through the vent pipe 10. The airflow is dispersed and reflected again by the second silencer 9 and then enters the third silencer cavity 6 through the through hole 15. This design allows the airflow to flow back in the silencer cavity, changing the airflow path and causing the airflow to turn back multiple times in the silencer cavity, further reducing noise.
[0023] The sound-absorbing mesh 8 has evenly spaced sound-absorbing holes.
[0024] The sound-absorbing mesh 8 uses sound-absorbing materials such as glass wool, metal fiber, and ceramic fiber, which can reduce noise by absorbing sound waves in the airflow. One end of the sound-absorbing mesh 8 is fixedly connected to the second sound-absorbing plate 9, and the other end is fixedly connected to the exhaust end cover 7, which makes it more convenient to assemble the muffler, reduces the process, and improves efficiency. The airflow enters the third sound-absorbing chamber 6 from the second sound-absorbing chamber 5 and is absorbed by the sound-absorbing mesh 8. The airflow repeatedly flows back in the third sound-absorbing chamber 6 and is absorbed by the sound-absorbing mesh 8 multiple times. After the noise is reduced to the maximum extent, it is discharged from the exhaust port.
[0025] The inner wall of the shell 1 is provided with sound-absorbing cotton around its perimeter.
[0026] To further enhance the noise reduction effect, sound-absorbing cotton is installed around the inner wall of the housing 1. This effectively absorbs excess sound waves in the air, thereby eliminating the effects of noise and echo, preventing excessive sound bounce and repeated accumulation, and reducing sound attenuation and background noise.
[0027] The usage process of the prefabricated smoke exhaust system silencer of this utility model is as follows: The shell is made of high-strength, corrosion-resistant material. During assembly, the mounting plate of the exhaust pipe is connected to the air inlet end cover, one end of the silencer mesh is fixedly connected to the exhaust end cover, and the other end of the silencer mesh is fixedly connected to the through hole of the second silencer plate. The first silencer plate is fixedly installed inside the shell, and the exhaust end cover and the air inlet end cover are assembled with the shell. The assembly process is simple, which can significantly shorten the assembly time, increase the production speed and reduce the error rate, thereby improving the overall production efficiency and product quality.
[0028] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
Claims
1. A prefabricated smoke extraction system silencer, comprising a housing (1), characterized in that: An air inlet cap (12) is installed on one side of the housing (1), and an exhaust cap (7) is installed on the other side of the housing (1). The air inlet cap (12) has an assembly port (18) that cooperates with the air inlet pipe (2), and the exhaust cap (7) has an exhaust port (3). The air inlet pipe (2) is fixedly provided with an mounting plate (23). The mounting plate (23) has a connecting hole (13) that cooperates with the screwing part (11). The air inlet cap (12) has a fixing hole (17) that cooperates with the connecting hole (13). The screwing part (11) connects with the fixing hole (17) to fix the mounting plate (23) and the air inlet cap (12). The housing (1) is also provided with a sound-absorbing structure.
2. The prefabricated smoke extraction system silencer as described in claim 1, characterized in that: The noise reduction structure includes a first noise reduction plate (19) and a second noise reduction plate (9). A first noise reduction cavity (4) is formed between the intake end cover (12) and the first noise reduction plate (19). A second noise reduction cavity (5) is formed between the first noise reduction plate (19) and the second noise reduction plate (9). A third noise reduction cavity (6) is formed between the second noise reduction plate (9) and the exhaust end cover (12).
3. The prefabricated smoke extraction system silencer as described in claim 2, characterized in that: The first muffler (19) is fixedly provided with multiple vent pipes (10) that communicate with the exhaust pipe (2), and the second muffler (9) is provided with through holes (15) that cooperate with the muffler mesh (8).
4. The prefabricated smoke extraction system silencer as described in claim 3, characterized in that: The sound-absorbing mesh (8) has uniformly opened sound-absorbing holes, and the sound-absorbing mesh (8) is made of glass wool.
5. The prefabricated smoke extraction system silencer as described in claim 1, characterized in that: The inner wall of the shell (1) is provided with sound-absorbing cotton.