The safety door muffler adopts the principle of through hole spraying and blocking for noise reduction. Among them, the use of large holes for expansion and flow control replaces the micro hole perforated plate type. In terms of structure, the principle that the safety door must exhaust steam smoothly is first ensured. Multi layer perforated sound absorption is combined with the principle of resistive noise reduction, allowing steam sound waves to enter countless small holes in the porous sound-absorbing material, exciting the molecular vibration of the porous material, and turning the sound energy into heat energy to overcome frictional resistance and viscous force, achieving the ideal noise reduction effect and ensuring the smooth elimination of steam.

 

For safety valves and exhaust valves, they can be seen as an integral part of pipelines. After acoustic treatment inside, they can reduce the generation and propagation of noise, resulting in a noise reduction of 20-30 decibels (a sound level) at the outlet and a corresponding reduction of more than 60% in loudness. Subjectively, there is a significant effect.