空调通风系统消声器设计及试验

加装通风消声器是降低空调通风管路噪声最为有效的方法,针对某空调通风系统噪声特性,设计了一种新型通风系统消声器,并对不同穿孔管穿孔率、吸声材料及包敷层材料的方案组合进行了消声量和阻力损失初步测试,根据测试结果确定了最优样机方案。最优样机在消声室里进行了性能试验,其测试结果满足设计要求。所设计的最优消声器具有消声效果好,阻损低等优点,已批量在实船上应用,并取得了较好的降噪效果。

Design and test of silencers for air-condition system

Noise silencer could effectively reduce the noise of air-condition system.A new kind of noise silencer was designed according to the noise characteristics of air-condition system.The test of noise reduction and resistance loss for different perforation rate,sound-absorbing material and coating material was conducted,and the silencer of optimum project is based on the result of test.The optimum silencer was tested in the noise elimination room and satisfied the design requirement.It was possessed excellent noise reduction and lower resistance lose which was widely applied on ships,and good noise reduction effect was achieved.