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一、前 言随着新铁路干线及高速汽车公路建设工程的增加,移动式压缩机的需要量每年都在增长。由于工程现场噪声公害的影响,要求防噪声型压缩机的呼声就越来越高,近几年这种压缩机的需要量显著增加。专门生产压缩机的厂家——北越工业,已经生产和售出许多种防噪声型压缩机并使用于工地上。但是,该公司并没有为此而满足,继续努力地研制全防噪声型压缩机,终于在去年制成一种PDR600S大型无噪声压缩机。去年曾在工程机械展览会上展出。下面扼要介绍其结构与特点。
I. INTRODUCTION With the increase of new railway lines and highway construction projects, the demand for mobile compressors has been growing each year. Due to the impact of noise pollution at the construction site, the demand for anti-noise type compressors is getting higher and higher. In recent years, the demand for such compressors has increased remarkably. Compressor manufacturers specializing in North Vietnam Industrial, has produced and sold many kinds of anti-noise type compressor and used on the site. However, the company did not meet this requirement, continue to work hard to develop all-noise-type compressor, and finally made last year a PDR600S large noise-free compressor. Last year was exhibited at the construction machinery exhibition. The following briefly describes the structure and characteristics.