Industrial plant wall noise reduction mechanism

Abstract

The utility model relates to sound insulation and noise reduction wall body technical field discloses industrial plant wall body noise reduction mechanism, including structural keel, structural keel is installed in the wall body all around, installs air cavity on structural keel, the inner wall of air cavity one end port sets up assembly strip no.

Description

Technical Field

[0001] This utility model relates to the field of sound insulation and noise reduction wall technology, specifically to a noise reduction mechanism for industrial plant walls. Background Technology

[0002] Most existing industrial plants are constructed with brick walls, or are reinforced concrete structures with all major load-bearing components such as beams, slabs, and columns made of reinforced concrete, or are steel structures with all major load-bearing components made of steel. There are many large, noisy machines in the workshops, and the sound insulation of these walls is not very good.

[0003] Patent application CN220150614U discloses a sound insulation and noise reduction wall structure for industrial plants. An anti-slip pad is fixedly connected to the front of the wall, and a sound insulation mechanism is fixedly connected to the front of the anti-slip pad. A first groove is formed on the upper surface of the sound insulation mechanism, and a sound insulation and noise reduction pad is slidably connected within the first groove. A clamping pad abuts against the front of the sound insulation and noise reduction pad, and a first threaded rod is fixedly connected to the center of one side of the clamping pad. Sound insulation and noise reduction cotton is slidably connected within the first groove. The clamping pad causes uneven compression of the sound insulation material, resulting in excessive compression of the sound insulation and noise reduction cotton in certain areas, leading to a decrease in the sound absorption coefficient in those areas and a deterioration in the sound insulation effect. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a noise reduction mechanism for industrial plant walls that improves sound insulation and noise reduction effects.

[0005] To solve the above technical problems, this utility model provides a noise reduction mechanism for industrial plant walls, including a structural keel installed around the perimeter of the wall. An air cavity is installed on the structural keel. An assembly strip is provided on the inner wall of one end of the air cavity, and an assembly strip is provided on the inner wall of the other end of the air cavity. A perforated plate is installed on the assembly strip. The perforated plate serves as the sound wave incident surface and has a thickness of 1-3mm. Multiple sound-absorbing layer keels are installed parallel to each other in the air cavity. Sound-absorbing cotton is inlaid between the air cavity and the sound-absorbing keels, and between pairs of sound-absorbing layer keels. A step is provided on the top and bottom sound-absorbing cotton where it meets the horizontal assembly strip. A step is provided on the middle sound-absorbing cotton where it meets the vertical assembly strip. The sound-absorbing cotton is attached to the wall surface. There is a gap between the perforated plate and the sound-absorbing cotton.

[0006] By adopting the above technical solution, the noise reduction mechanism, which combines sound-absorbing cotton and perforated panels, has a good noise absorption effect. The sound-absorbing cotton is embedded in the air cavity divided into multiple partitions by the sound-absorbing layer keel. The sound-absorbing cotton is in close contact with the inner wall of the air cavity and the surface of the wall. Moreover, there is a gap between the sound-absorbing cotton and the perforated panel, which effectively improves the sound insulation and noise reduction effect of the wall.

[0007] Preferably, the thickness of the air cavity is 50-90mm.

[0008] By adopting the above technical solution, the sound insulation effect is improved by filling the air cavity with sound-absorbing cotton of a certain thickness.

[0009] Preferably, the sound-absorbing cotton absorbs sound waves transmitted from the perforated plate and gaps, and has a thickness of 50-75mm.

[0010] By adopting the above technical solution, the combination of sound-absorbing cotton and perforated panels effectively attenuates noise.

[0011] Preferably, pressure strips are installed on the sound-absorbing cotton, and the pressure strips are fixed to the sound-absorbing layer keel.

[0012] By adopting the above technical solution, the sound-absorbing cotton is blocked by pressure strips to ensure that the sound-absorbing cotton will not fall out.

[0013] Preferably, sound insulation felt or rubber pads are placed between the structural keel and the wall.

[0014] By adopting the above technical solution, placing sound insulation felt or rubber pads between the structural keel and the wall can help cut off rigid sound transmission.

[0015] Preferably, the perforation diameter of the perforated plate is 1-2 mm.

[0016] By adopting the above technical solution, when using a perforated plate with a hole diameter of 1-2mm, the noise reduction mechanism mainly targets the high frequency of 2000-4000Hz, which is suitable for precision instrument workshops.

[0017] Preferably, the perforation diameter of the perforated plate is 3-5mm.

[0018] By adopting the above technical solution, when using a perforated plate with a hole diameter of 3-5mm, the absorption of low frequency 115-250Hz is enhanced, which is suitable for stamping workshops.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. This utility model adopts a noise reduction mechanism that combines sound-absorbing cotton and perforated panels, which has a good noise absorption effect. The sound-absorbing cotton is embedded in an air cavity divided into multiple partitions by a sound-absorbing layer keel. The sound-absorbing cotton is in close contact with the inner wall of the air cavity and the surface of the wall. Moreover, there is a gap between the sound-absorbing cotton and the perforated panel, which effectively improves the sound insulation and noise reduction effect of the wall.

[0021] 2. In this utility model, a pressure strip is installed on the sound-absorbing cotton. The pressure strip is fixed on the sound-absorbing layer keel to ensure that the sound-absorbing cotton will not fall off.

[0022] 3. The sound insulation felt or rubber pad between the structural keel and the wall in this utility model is beneficial for cutting off rigid sound transmission. Attached Figure Description

[0023] Figure 1This is a perspective view of the present utility model;

[0024] Figure 2 This is a side view of the present invention;

[0025] Figure 3 This is a schematic diagram of the air cavity of this utility model;

[0026] Figure 4 A schematic diagram showing a step on the sound-absorbing cotton at the top of this utility model;

[0027] Figure 5 A schematic diagram showing a step two on the sound-absorbing cotton in the middle of this utility model.

[0028] Drawing numbers: 1. Structural keel, 2. Air cavity, 3. Perforated plate, 4. Sound-absorbing layer keel, 5. Sound-absorbing cotton, 6. Pressure strip, 7. Fastener one, 8. Fastener two, 9. Assembly strip one, 10. Assembly strip two, 11. Fastener three, 12. Step one, 13. Step two. Detailed Implementation

[0029] like Figure 1 , 2 As shown, the noise reduction mechanism for the wall of an industrial plant includes a structural keel 1, which is installed around the perimeter of the wall using fasteners 7. An air cavity 2 is installed on the structural keel 1. An assembly strip 9 is installed on the inner wall of one end of the air cavity 2, and the assembly strip 9 and the structural keel 1 are connected by fasteners 8. An assembly strip 10 is installed on the inner wall of the other end of the air cavity 2. Assembly strips 9 and 10 are installed on the inner wall of the air cavity 2 using screws or nails. Both assembly strips 9 and 10 are perpendicular to the inner wall of the air cavity 2. A perforated plate 3 is installed on the assembly strip 10 using fasteners 11. The perforated plate 3 serves as the sound wave incident surface and has a thickness of 1-3 mm. Multiple sound-absorbing layer keels 4 are installed in parallel within the air cavity 2. Sound-absorbing cotton 5 is inlaid between the air cavity 2 and the sound-absorbing keel 4, and between each pair of sound-absorbing keels 4; the sound-absorbing cotton 5 is attached to the wall surface to reduce sound wave reflection and improve sound absorption efficiency; there is a gap between the perforated panel 3 and the sound-absorbing cotton 5; the gap ensures noise reduction effect while reducing the amount of sound-absorbing cotton 5 used, thus reducing material costs. Figure 4 As shown, steps 12 are provided at the joints where the sound-absorbing cotton 5 at the top and bottom meets the horizontal assembly strip 9. Figure 5 As shown, a step 13 is provided at the point where the sound-absorbing cotton 5 in the middle meets the vertical assembly strip 9. Fasteners 7, 8, and 11 are bolts or nails. This application adopts a noise reduction mechanism combining sound-absorbing cotton 5 and perforated plate 3, which has a good noise absorption effect. The sound-absorbing cotton 5 is embedded in the air cavity 2, which is divided into multiple partitions by the sound-absorbing layer keel 4. The sound-absorbing cotton 5, the air cavity 2, and the wall contact surface are in contact, and there is a gap between the sound-absorbing cotton 5 and the perforated plate 3, which effectively improves the sound insulation and noise reduction effect of the wall.

[0030] The sound-absorbing cotton 5, with a thickness of 50-75mm, absorbs sound waves transmitted from the perforated plate 3 and the gaps. The combination of sound-absorbing cotton 5 and perforated plate 3 effectively attenuates noise.

[0031] The use of sound insulation felt or rubber pads between the structural keel 1 and the wall helps to cut off rigid sound transmission.

[0032] like Figure 3 As shown, the air cavity 2 serves as a resonance energy dissipation space, with a thickness of 50-90mm. A certain thickness of sound-absorbing cotton 5 is filled into the air cavity 2 to improve sound insulation. A pressure strip 6 is installed on the sound-absorbing cotton 5 and fixed to the sound-absorbing layer frame 4. The pressure strip 6 is used to hold the sound-absorbing cotton 5 in place, ensuring that it will not detach or fall off.

[0033] When manufacturing the perforated plate 3, through holes of 1-2 mm are drilled in the perforated plate 3. When using the perforated plate 3 with a hole diameter of 1-2 mm, the noise reduction mechanism mainly targets the high frequency of 2000-4000 Hz, which is suitable for precision instrument workshops.

[0034] When manufacturing the perforated plate 3, through holes of 3-5mm are drilled in the perforated plate 3. When using the perforated plate 3 with a hole diameter of 3-5mm, the absorption of low frequencies of 115-250Hz is enhanced, making it suitable for stamping workshops.

[0035] During installation, first, use bolts to install the structural keel 1 onto the wall, placing a rubber pad between the structural keel 1 and the wall. Then, use bolts to install the air cavity 2 onto the structural keel 1, and place the sound-absorbing cotton 5 layer by layer onto the sound-absorbing layer keel 4 from top to bottom. The contact surfaces of the sound-absorbing cotton 5, the wall, and the air cavity 2 should be in contact. The pressure strip 6 is fixed to the sound-absorbing layer keel 4 with nails. Finally, use bolts to install the perforated plate 3 onto the assembly strip 10 of the air cavity 2. By using a combination of sound-absorbing cotton 5 and perforated plate 3, and using the pressure strip 6 to hold the sound-absorbing cotton 5 in place to prevent it from falling off, the noise absorption effect is good, and the acoustic environment is significantly improved.

[0036] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. A noise reduction mechanism for industrial plant walls, characterized in that: The application relates to a sound-absorbing wall structure, which comprises a structural keel (1) installed around a wall body, an air cavity (2) installed on the structural keel (1), an assembling strip one (9) arranged on the inner wall of one end of the air cavity (2), and an assembling strip two (10) arranged on the inner wall of the other end of the air cavity (2); a perforated plate (3) is installed on the assembling strip two (10); the perforated plate (3) is a sound wave incidence surface and has a thickness of 1-3 mm; a plurality of sound-absorbing layer keels (4) are installed in the air cavity (2) in parallel; sound-absorbing cotton (5) is inlaid between the air cavity (2) and the sound-absorbing layer keels (4) and between the sound-absorbing layer keels (4); a first step (12) is arranged on the sound-absorbing cotton (5) at the mutual abutting position of the top and bottom sound-absorbing cotton (5) and the horizontal assembling strip one (9); a second step (13) is arranged on the sound-absorbing cotton (5) at the mutual abutting position of the middle sound-absorbing cotton (5) and the vertical assembling strip one (9); the sound-absorbing cotton (5) is attached to the surface of the wall body; and a gap is formed between the perforated plate (3) and the sound-absorbing cotton (5).

2. The industrial plant wall noise reduction mechanism of claim 1, wherein: The thickness of the air cavity (2) is 50-90 mm.

3. The industrial plant wall noise reduction mechanism of claim 1, wherein: The sound-absorbing cotton (5) absorbs sound waves transmitted from the perforated plate (3) and the gap, and has a thickness of 50-75 mm.

4. The industrial plant wall noise reduction mechanism of claim 1, wherein: A pressing strip (6) is installed on the sound-absorbing cotton (5) and fixed on the sound-absorbing layer keel (4).

5. The industrial plant wall noise reduction mechanism of claim 1, wherein: A sound insulation felt or rubber pad is arranged between the structural keel (1) and the wall body.

6. The industrial plant wall noise reduction mechanism of claim 1, wherein: The hole diameter of the perforated plate (3) is 1-2 mm.

7. The industrial plant wall noise reduction mechanism of claim 1, wherein: The hole diameter of the perforated plate (3) is 3-5 mm.

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