低温用半封闭螺杆式压缩机的现状及发展趋势

Status and development trend of semi-hermitic screw compressor for low-temperature application

低温用半封闭螺杆式压缩机因其高效紧凑等优势正逐渐取代其他形式的压缩机,成为冷冻冷藏用压缩机的首选。本文介绍低温螺杆式压缩机的应用场合以及国内外低温用半封闭螺杆式压缩机的主要生产厂商,并结合产品从转子型线、电机冷却、容量调节、制冷剂的使用等方面阐述目前低温用半封闭螺杆式压缩机的发展现状及趋势。

Semihermetic screw compressor for lowtemperature application is replacing other types of compressors gradually because of its compact structure,high efficiency and other advantages, and it becomes the first choice of compressor for freezing and refrigera tion. The application of lowtemperature screw compressor and major manufacturers of semihermetic screw compressor for lowtemperature application at home and abroad are introduced. Then the development status and trend of semihermetic screw compressors for lowtemperature application are described combined with current product from the aspects of rotor profile,motor cooling,capacity adjustment and use of refrigerant.