anechoic enclosure

The thesis introduced the actual state of final cooling place blower muffles in HPH-batch type annealing plant,the preasent problems and the aim of improvement.

本文从攀钢冷轧厂罩式炉机组终冷台风机消音器的现状、存在的问题和改进的目的进行了介绍和分析。

According to the analysis of noise characteristics produced in safety valve exhaust steam system in power house,this paper states that adopting muffle can control noise effectively.

通过对发电厂安全阀排汽系统产生的噪声特征进行分析,提出采用安装消音器的方式,对其噪声进行控制,具有明显的效果。

Study of Pressure Pulsation in Discharge Muffler of Rotary Compressor;

旋转式压缩机消音器内压力脉动研究

In this article,on the base of the theory study of sound insulation property of Al-foam,a Al-foam silencer applied to damping gas noise of pipeline was prepared,Experiments show that the sound insulation property of Al-foam silencer is better than coppery silencer prepared by powder metallurgy.

本文在对泡沫铝消声性能研究的基础上 ,针对气流噪声问题 ,研制出一种泡沫铝管道气流消音器。

49 type steam turbine,a perforated plate type composite silencer has been designed by combining the noise-reducing frequency properties of resistant silencer and atomizing silencer.

49型汽轮机排汽口排汽温度高、流速快等特点,结合抗性消音器和喷雾消音器的消声频率特性,设计出穿孔板式组合型消音器,其可在较宽的频率范围内消除噪声。