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Environment-friendly type sound absorption barrier

An environmentally friendly and sound-absorbing technology, which is applied in noise-absorbing devices and buildings, can solve the problems of poor corrosion resistance of metal sound-insulating panels, poor sound-absorbing performance of low-frequency noise, and reduced sound-absorbing performance, achieving good sound-absorbing effects , sound-absorbing performance does not decline, the effect of strong drainage

Active Publication Date: 2013-02-06
JIANGSU BURGEREE NEW TECH MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, in order to achieve a better noise reduction effect, the sound barriers used for road noise reduction treatment mostly use the material combination of centrifugal glass sound-absorbing cotton between two metal sound-insulating panels, and there is no gap between the metal sound-insulating panels and the sound-absorbing cotton. In this material combination, the centrifugal glass sound-absorbing cotton filled inside has poor sound-absorbing performance for low-frequency noise. At the same time, it is easy to stimulate the human body during the assembly process, and it is easy to accumulate, and the sound-absorbing performance decreases after being damp.
Therefore, the material combination of traffic sound-absorbing barriers needs to be improved, and the corrosion resistance of metal sound-insulating panels is poor

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0026] Such as Figure 1-3 The environment-friendly sound-absorbing barrier shown includes a box body 1, a cover body 2 and a sound-absorbing layer 3, and the cover body 2 is connected to the box body 1 through a slot. The sound-absorbing layer 3 is a double-sided wave structure, the waves on both sides are perpendicular to each other, the wave bottom width is 20mm, the wave height is 40mm, and the thickness of the sound-absorbing layer excluding waves is 10mm. The sound-absorbing layer is arranged in the box body and forms a cavity with the bottom surface of the box body and the cover body. The cover body 2 is a perforated panel, the hole is circular, the hole diameter is 3 mm, and the perforation rate is 20%. Both the box body 1 and the cover body 2 are made of fiberglass with a thickness of 3.5mm, and the sound-absorbing layer 3 is made of polyester fiberboard. The thickness of the environment-friendly sound-absorbing barrier is 100mm.

[0027] According to GB / T20247-200...

Embodiment 2

[0029] Such as Figure 1-3 The environment-friendly sound-absorbing barrier shown includes a box body 1, a cover body 2 and a sound-absorbing layer 3. The cover body 2 is connected to the box body 1 through a slot, and the sound-absorbing layer is arranged in the box body and connected to the bottom surface of the box body and the sound-absorbing layer 3. Cavities are formed between the cover bodies. The thickness of the two cavities are 50mm and 110mm respectively. The sound-absorbing layer 3 is a double-sided wave structure, the waves 4 on both sides are perpendicular to each other, the wave bottom width is 40mm, the wave heights are 50mm and 110mm respectively, and the thickness of the sound-absorbing layer excluding waves is 30mm. The cover body 2 is a perforated panel, the hole is circular, the hole diameter is 5mm, and the perforation rate is 25%. Both the box body 1 and the cover body 2 are made of fiberglass with a thickness of 4.5mm, and the sound-absorbing layer 3 ...

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Abstract

The invention discloses an environment-friendly type sound absorption barrier. The environment-friendly type absorbent sound barrier comprises a box, a box cover and a sound absorption layer, wherein the box cover is movably connected on the box, the sound absorption layer is arranged in the box, and a cavity is formed by the sound absorption layer, the bottom of the box and the box cover. By the aid of the cavity, frequency range for sound absorption and noise reduction is obviously enlarged, and practical effect of the sound absorption barrier is improved. The environment-friendly type sound absorption barrier is good in sound absorption effect, high in strength and stable in structure, and the cavity is flexible and controllable in size.

Description

technical field [0001] The invention relates to an environment-friendly sound-absorbing barrier. Background technique [0002] In the prior art, in order to achieve a better noise reduction effect, the sound barriers used for road noise reduction treatment mostly use the material combination of two metal sound insulation panels filled with centrifugal glass sound-absorbing cotton, and there is no gap between the metal sound insulation panel and the sound-absorbing cotton In this material combination, the centrifugal glass sound-absorbing cotton filled inside has poor sound-absorbing performance for low-frequency noise. At the same time, it is easy to stimulate the human body during the assembly process, and it is easy to accumulate, and the sound-absorbing performance decreases after being damp. Therefore, the material combination of traffic sound-absorbing barriers needs to be improved, and the corrosion resistance of metal sound-insulating panels is poor. Contents of the...

Claims

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Application Information

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IPC IPC(8): E01F8/00
Inventor 左洪运邱贤锋
Owner JIANGSU BURGEREE NEW TECH MATERIALS
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