First, the type of soundproof room:
1. A workshop such as internal combustion engine, electric motor, air compressor, fan, hydraulic pump, stamping, sheet metal, engine test workshop and other strong noise workshops, the total noise level is high, and the external environment has high quiet requirements, so The noise in the closed workshop is not allowed to come out.
2, a room such as the listening room, all kinds of studios, various types of laboratories, control rooms in high-noise workshops and other rooms with high quiet requirements, to prevent the introduction of high noise in the external environment. Both types of rooms should be designed as soundproof rooms, but the sound insulation properties are different. One is to prevent strong noise from passing through the enclosure from the soundproofing room, and the other is to prevent strong noise from passing through the enclosure outside the soundproofing structure.
In fact, every room used by industrial and civil buildings is not willing to have noise, so in a broad sense, it has the meaning of soundproofing room. The soundproofing room mentioned here is more soundproofing measures. A veritable soundproof room that is complex and expensive.
Second, the design requirements of the soundproof room:
Regardless of whether it is the first type of noise-proof room that irritates the noise in the room, or the second type of quiet room that does not allow external noise to pass into the room, the acoustic treatment has a common point.
1. The design of the soundproof room is mainly designed to include the wall, floor, roof, doors and windows, reserved holes and other envelopes to achieve a certain amount of sound insulation. For the floor slab, sound insulation and shock absorbing materials can be used to achieve the sound insulation requirements. The ceiling can increase the sound insulation by the ceiling. The ceiling must be filled with sound absorbing materials and sound insulation materials. For the wall, double wall should be considered, and the sound absorbing material should be filled in the middle. It is also possible to fill the keel with sound absorbing materials and soundproofing materials in a single wall.
2, the door can directly use the sound insulation door, there are two kinds of windows about the soundproof room, one is the outer window designed for lighting and ventilation. This kind of window is mostly made of plastic steel window. If it is made into double layer, the middle distance is 10~15cm. Sound insulation can basically meet the requirements. Such windows are preferably designed to be fixed and partially open for small fans for breathable scrubbing, but care must be taken to ensure that the construction is tight. The other is an observation window for production. The observation window is usually designed to be fixed and often designed as two or three layers of glass. In order to eliminate the influence of high frequency anastomosis, it is best to use glass of different thickness. The multi-layer window is not an insulating glass window with a 6 or 9 mm thick air layer, but a soundproof window with an air layer thickness of preferably 10 to 15 cm or more.
Third, the fully enclosed soundproof room "ventilation muffler" design:
In order to prevent the introduction of external noise or internal noise, such rooms are generally designed in a fully enclosed, fully air-conditioned design. Therefore, there is a problem of introducing new air to improve the indoor environment. First, it is possible to design a full air-conditioning system with fresh air. Ventilation ducts that communicate directly with outdoor air can be made locally, but such ducts must be acoustically treated with a muffler mounted on the wall for both ventilation and sound isolation.
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