一、前 言 冷冻压缩机由于需要量增加,趋向于小型高速化,研究工作也比较活跃,在技术上也有了很大进步。 随着压缩机的高速化,产生了气体脉动引起的管路、换热器振动,噪音增强,自动阀破损等许多问题。然而由于最近测试工具的进步及电子计算机的普及,能够研究压缩机的动力特性,从而逐渐解决了这些问题。这样一来,压缩机性能及可靠性就提高了。 First, the foreword Refrigeration compressors due to increased demand, tend to small-scale high-speed, research work is also more active in the technology has also made great progress. With the high-speed compressor, gas pipeline caused by pulsation, heat exchanger vibration, noise enhancement, automatic valve damage and many other issues. However, due to the recent progress of testing tools and the popularization of electronic computers, these problems can be solved gradually by studying the dynamic characteristics of compressors. As a result, compressor performance and reliability have increased.