The sound insulation barrier is a sound insulation facility.In order to block the direct sound between the sound source and the receiver, it inserts a facility between the sound source and the receiver, so that the sound wave spreads a significant additional attenuation, thereby weakening the noise effect in a certain area where the receiver is located.
Price of sound insulation barrier
1. All kinds of noise treatment projects, the main products are suitable for construction, industry, residential and commercial aspects.Quotation: 8000.00 yuan Brand/Model: Sound Source/Once -Reight Barrier Category: Industrial Noise Control Equipment 2. Glass wool sound insulation sound absorption material sound insulation barrier Quotation: 50.00 yuan brand/model: Qingshan category: other insulation sound -absorbing materials 3 3, Highway sound insulation wall again issued patent product product quotation: 300.00 yuan brand/model: re -category: other insulation sound -absorbing materials
Principles of sound insulation barrier
During the spread of sound waves, when encountering the sound insulation barrier, the three phenomena of reflection, transmission and shooting will occur.Generally, we believe that the barrier can prevent the spread of direct sound and make the elastic sound attenuation, and the impact of the transpressive sound can be ignored.Therefore, the sound insulation effect of the sound insulation barrier can generally be represented by noise reduction, which reflects the two -shielding sound -transparent skills.Insert a sound barrier between the sound source and the receiving point. The barrier is unlimited. The sound waves can only be shot from above the barrier, and then form a sound shadow area, just like the light is covered by the object to form a shadow.In this sounding area, people can feel that the noise is obviously weakened. This is the noise reduction effect of the sound insulation barrier.The size of this "sound shadow area" is related to the frequency of sound. The higher the frequency, the larger the range of the sound shadow area.
Sound barrier material
The main materials of common sound barriers on the market are metal sound barriers, concrete sound barriers, PC sound barriers, and glass fiber reinforced sound barriers.The cost of metal sound barrier is high and easy to rust; ordinary concrete is self -significant and low in strength; PC sound screen barriers have low hardness and poor ultraviolet resistance; glass fiber reinforcement sound barrier costs high and non -fire prevention.
Sound barrier design
The design of the sound insulation barrier must consider the surrounding environment to achieve truthful facts. First of all, the noise reduction must be considered. This is the prerequisite for work. After clarifying the target value, Factors such as building height and distance.Calculate the height of the barrier and the structure required according to the theoretical formula.
Type of sound insulation barrier
I. Obstructive sound insulation barrier The resistance of the obstacle of the sound insulation barrier consists of a closed box structure from the front panel, the back plate, and the side plate forms a modular unit.The front panel is a galvanized steel plate with a perforation rate of 25%, and the rear plate and side plate are non -perforation -non -perforated galvanized steel plates. (From a beautiful perspective, color steel plates can also be used).Fill the moisture -proof centrifugal glass wool plate between the two layers.The column is 12#worker steel, and the column spacing is 2m.The columns are inserted in the basis of reinforced concrete.Insert the standard board between the work steel, fix it with fasteners, install, repair, and replace it very simple.Second, ordinary transparent sound insulation barrier The ordinary transparent sound insulation barrier uses transparent polycarbonate board (also known as PC board). Because it is transparent, the landscape of the sound insulation barrier is better, and it is easier to dissolve into the surrounding environment.Optional color.

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