Noise control has become an indispensable item in today's social life. Noise pollution seriously affects our life and health. What are the ways to control the spread and reflection of noise?

Here is a brief summary of the noise control methods:

1. Silencing: according to the characteristics of the noise spectrum, through the use of specially designed resistive muffler, reactive muffler and impedance composite muffler. To reduce the intake and exhaust noise of various fans, air compressors, internal combustion engines, etc.

2. Sound insulation: use certain materials, structures and devices to close the sound source, such as sound insulation windows, doors, walls (sound barriers), rooms, covers, curtains, etc.

3. Sound absorption: It is used for porous materials such as glass wool, slag wool, foam plastic, felt cotton batting, etc., and is decorated on indoor walls or hung in space, or made into sound absorption screens.

4. Damping and vibration isolation: damping refers to coating asphalt, paint, etc. on the pipe wall or channel wall that generates noise to reduce the vibration of the pipe wall or channel wall; Vibration isolation refers to the installation of damping devices and anti vibration structures on the foundation, ground, wall or other connecting parts of the noise source. For example, install damping shock absorbers, anti vibration rubber pads and other equipment on the bottom of machinery and equipment, and fill cavities such as hollow columns with special materials of different materials.

Through the above ways and methods, materials and structures, noise treatment can be blocked and alleviated to a certain extent, bringing more quiet environment for our life. Reduce the impact of noise on work, life and health.