The selection of the muffler should be based on the requirements of fireproof, moisture-proof, anti-corrosion, cleanliness, installation space location, noise source spectrum characteristics, system natural sound attenuation, system air flow regeneration noise, room noise level, allowable pressure loss, equipment price and many other factors Comprehensive consideration and some emphasis on actual situation. The general situation is: the larger the silencer volume, the greater the pressure loss and price; when the silencer volume is the same, the smaller the pressure loss, the larger the space occupied by the silencer.
The new type of high-efficiency anti-spray-resistant series muffler equipment is widely used in power generation, chemical industry, metallurgy, textile and other industrial factories and mines for various types of boilers, steam turbine exhaust; fans; safety doors and other equipment to reduce noise. This series of silencers are developed based on the principle of anti-, spray, and anti-combined silencer. It has many advantages such as large silencer volume, small size, light weight, convenient installation and no maintenance.
● The muffler frequency characteristics of the muffler. The anti-spray-resistance muffler has a superior effect on various frequency noise.
● The applicable wind speed of the silencer is generally 6-8m/s, and the highest should not exceed 12m/s. At the same time, pay attention to the pressure loss of the silencer.
● Pay attention to the clear channel cross-sectional area of the muffler. When connecting the duct and the muffler, it needs to be enlarged if necessary (when the wind speed is limited).
● The installation of silencer and other silencer equipment must have an independent load-bearing boom or base; it must be connected to the sound source equipment through a soft joint.
● When two silencer elbows are used in series, the connection distance between the two elbows should be greater than 2.5 times the diagonal length of the elbow section.
● For environmental systems with high temperature, high humidity, oil mist and water vapor, microporous structure silencer equipment is generally used. For environmental systems with clean requirements such as operating rooms, recording rooms, and clean workshops, microporous structure silencer equipment should be used.
● When the pipelines of adjacent rooms are in collusion, attention should be paid to the mutual influence of indoor noise through pipelines, and if necessary, the air outlet shall be silenced.