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Sound absorption wall

A technology of sound-absorbing cotton and sound-absorbing panels, applied in walls, sound insulation, construction, etc., can solve problems such as cumbersome installation process, poor sound-absorbing effect, and lack of safety, and achieve the effects of ensuring sound-absorbing efficiency, improving sound-absorbing effect, and high economy

Active Publication Date: 2016-05-18
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of the sound-absorbing panels used in the sound-absorbing walls in the prior art, such as poor sound-absorbing effect, flammability, poor stability, cumbersome installation process, and lack of safety, the present invention provides a sound-absorbing wall

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 The sound-absorbing wall shown includes an inner wall, an alkali-free glass sound-absorbing cotton, a metal sound-absorbing panel, and a keel. There are embedded parts in the inner wall, and the keel is welded to the embedded part. The surface of the weld between the keel and the embedded part is It is equipped with anti-rust layer, the metal sound-absorbing panel is fixed on the keel by bolts and nuts, and the non-alkali glass sound-absorbing cotton is filled between the inner wall and the metal sound-absorbing panel;

[0033] The metal sound-absorbing board includes a metal sound-absorbing board and a fire-proof alkali-free glass fiber layer. There are sound-absorbing holes evenly distributed on the metal sound-absorbing board. The sum of the areas of all the sound-absorbing holes accounts for 45% of the area of ​​the metal sound-absorbing board. The inner diameter of the sound-absorbing hole is 6mm; the back of the metal sound-absorbing plate is prov...

Embodiment 2

[0037] It is basically the same as Example 1, except that: the sound-absorbing wall also includes metal fiber cloth, and the metal fiber cloth is laid on the inner wall and is located between the inner wall and the non-alkali glass sound-absorbing cotton; the inner diameter of the sound-absorbing hole is 4mm; The height of the first folded edge is 15mm; the distance between the fire-proof alkali-free glass fiber layer and the metal sound-absorbing plate is 15mm; the side length of the cross-section of the hot-dip galvanized square tube is 35mm, and the wall thickness is 1.5mm. The depth of the second fold is 20mm; the thickness of the metal sound-absorbing plate is 1mm; the thickness of the fireproof non-alkali glass fiber layer is 0.5mm; the thickness of the non-alkali glass sound-absorbing cotton is 5cm. The above-mentioned metal fiber cloth is aluminum thin corrugated fiber cloth.

[0038] The principle of the sound-absorbing wall is passive noise reduction. When the sound ...

Embodiment 3

[0040] It is basically the same as Embodiment 1, except that there are more than two rows of sound-absorbing holes, and two adjacent rows of sound-absorbing holes are arranged alternately. The inner diameter of the sound-absorbing hole is 8mm; the height of the first folded edge is 25mm; the distance between the fireproof alkali-free glass fiber layer and the metal sound-absorbing plate is 25mm; the side length of the cross-section of the hot-dip galvanized square tube is 45mm, and the wall thickness is 2.5mm. The depth of the second fold is 30mm; the thickness of the metal sound-absorbing plate is 3mm; the thickness of the fireproof non-alkali glass fiber layer is 1.5mm; the thickness of the non-alkali glass sound-absorbing cotton is 7cm.

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Abstract

The invention discloses a sound absorption wall, which comprises an inner wall, alkali-free glass sound absorption cotton, metal acoustical boards and keels, wherein embedded elements are arranged in the inner wall; the keels are welded on the embedded elements; the metal acoustical boards are fixed on the keels through screw bolts and screw nuts; and a position between the inner wall and the metal acoustical boards is filled with the alkali-free glass sound absorption cotton. The metal acoustical board perforation rate of the sound absorption wall can reach 40 percent or above. Compared with the prior art, the sound absorption wall has the advantages that the sound absorption efficiency is greatly improved; the structural stability is very good; deformation is avoided; the service life is long; the metal sound absorption wall achieves a good fireproof effect, is nonflammable and has high sound absorption efficiency; the installing and fixing mode of the metal acoustical boards is simple; the single-piece fixation of the metal acoustical boards is realized; and the fixation of other metal acoustical boards cannot be influenced by the mounting or the dismounting of any one metal acoustical board.

Description

technical field [0001] The invention relates to a sound-absorbing wall. Background technique [0002] At present, occasions such as lecture halls, broadcasting rooms, and movie theaters need good sound effects, but the sound broadcast by the sound equipment is often reflected by the wall, and it is reflected many times in the field, causing echoes and accents, which affect the listening effect, so it is necessary to install a sound-absorbing wall; production In order to control the impact of noise generated by indoor equipment (transformers, air compressors, coal mills, etc.) on the environment, manufacturers generally need to install sound-absorbing and noise-absorbing devices such as sound-absorbing walls indoors. [0003] However, the sound-absorbing panels used in the existing sound-absorbing walls have problems such as poor sound-absorbing effect, flammability, poor stability, and cumbersome installation process, and the disassembly of one sound-absorbing panel will cau...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B2/00E04B1/94E04B1/82E04B1/86
Inventor 周昊吴新宇徐礼君
Owner STATE GRID CORP OF CHINA
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