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武汉轻型汽车制造二厂铸铁车间,其动力选用8-18-101№8D型高压离风机,风机噪声115 dB(A),此风机距离居民集中区8米,严重影响居民的正常生活。为了使噪声由115 dB(A)降低到85 dB(A)以下,以符合工业企业噪声卫生标准,减少对环境的污染消除公害,我们采用了消声器、隔声室、吸声板以及减振、防振槽等综合措施,如图所示。(1)对隔声室的消声墙壁厚40cm,内外粉刷,内衬隔声板。配隔
Wuhan Light Vehicle Manufacturing Plant cast iron workshop, the power of 8-18-101 № 8D high-pressure fan, fan noise 115 dB (A), the fan from the residents concentrated area 8 meters, seriously affecting the normal life of residents. In order to reduce the noise from 115 dB (A) to 85 dB (A) or less, in line with the noise health standards of industrial enterprises to reduce environmental pollution and eliminate pollution, we used mufflers, soundproof rooms, sound absorbing panels, Anti-vibration tank and other comprehensive measures, as shown. (1) The wall thickness of the sound-absorbing wall of the soundproof room 40cm, both inside and outside paint, lined with soundproof board. With separated