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目前,我国高转速的微型压缩机噪声普遍较大,已成为微型空压机行业攻关项目之一。为了改善使用性能、满足用户要求和扩大出口贸易,我们在2V-0.6/7-B型压缩机上设计了阻抗复合式进气消声器。经实践证明,消声效果较好,噪声由原来的92分贝降至79.84分贝。现已配置在2V-0.6/7型及3W-0.9/7型空压机上使用。本文将试验情况简介如下。 1.机组的噪声源及其产生原因小型移动式空压机噪声是一个综合性噪声源。通过对高转速压缩机工作状态的分析,其工作噪声主要由气体动力噪声、机械振动和由这两者激发振动下生成的表面幅射噪声以及电
At present, China’s high-speed micro-compressor noise is generally larger, has become one of the micro-compressor industry research projects. In order to improve the performance, to meet user requirements and expand export trade, we designed the impedance composite intake silencer on 2V-0.6 / 7-B type compressor. The practice proved that the noise reduction effect is better, the noise dropped from 92 dB to 79.84 dB. Now configured in the 2V-0.6 / 7 and 3W-0.9 / 7 air compressor on the use. This article will test the situation is as follows. 1. Unit noise sources and their causes Small mobile air compressor noise is a comprehensive noise source. Through the analysis of working conditions of high-speed compressor, the working noise is mainly composed of gas dynamic noise, mechanical vibration and surface radiation noise generated by the vibration of both,