1. Take noise prevention and sound insulation measures for local noise sources, isolate and seal the noise sources with noise elimination devices, and use vibration isolation devices to prevent noise from spreading through solids; Thereby achieve that sound insulation effect of the equipment.
2. Take sound absorption measures for the equipment and use porous materials such as glass wool, slag wool, foam plastic and felt cotton. To decorate the indoor wall or hang it in the space, or make a sound-absorbing screen; Through these sound-absorbing materials, the spread of noise is weakened and the sound insulation effect is achieved.
3. Mute the device. This method is suitable for reducing aerodynamic noise, such as intake and exhaust noise of various fans, air compressors and internal combustion engines. There are three kinds of mufflers designed according to the frequency spectrum characteristics of noise: resistive muffler, reactive muffler and impedance compound muffler; The muffler installed in the equipment can effectively reduce the spread of noise, reduce the harm to human body, and achieve the effect of sound insulation measures of the equipment to the greatest extent.
4. The equipment is equipped with sound insulation device, and the sound source is sealed with certain materials, structures and devices, such as sound insulation wall, sound insulation room, sound insulation cover, sound insulation door and window floor, etc. So as to block the spread of noise and achieve the purpose of sound insulation and noise reduction of equipment.