Muffler manufacturer

Mufflers have good mid to high frequency noise reduction performance. According to the geometric shape of the airflow channel, it can be divided into straight pipe type, sheet type, folded plate type, maze type, honeycomb type, acoustic flow type, baffle type, elbow type, etc. Resistance mufflers are suitable for eliminating mid to low frequency noise or narrowband noise. According to their different operating principles, they can be divided into various types such as expansion type, resonant cavity type, and interference type. Impedance composite muffler has acoustic filtering devices such as resonant cavity, expansion chamber, perforated screen, etc. It combines the good high-frequency noise reduction characteristics of resistive muffler and the good low-frequency noise reduction characteristics of resistive muffler. Therefore, its noise reduction frequency band is wide, and it is one of the most commonly used standard muffler series. The suitable wind speed is 6-8 meters per second, which can reach 8-12 meters. It can be used alone or in series. Noise reduction effect: Low frequency of 10-15 dB/m, medium frequency of 15-25 dB/m, high frequency of 25-30 dB/m, with an average drag coefficient of 0.4. According to "Air Conditioning", soundproof elbows and soundproof static pressure boxes are both types of mufflers. The function of a static pressure box is to convert some dynamic pressure into static pressure, allowing the wind to blow further; 2. Can reduce noise 3, evenly distribute air volume