螺杆冷冻机的研制工作虽已开展多年,并业已有几十台产品在运转,但普遍存在性能和经济指标达不到设计要求的问题。另外我国还进口有数十台螺杆冷冻机,其中有不少机器发生不同程度的故障,多数是属于设计问题。同时压缩机行业的螺杆空压机也存在着油耗大、噪声大、电耗较大等问题。因此,我们结合试制冷冻机行业联合设计的 KA20C 螺杆冷冻机,同时进行了较为全面的试验研究工作,各项指 Although the development of screw freezer has been carried out for many years, and there are already dozens of products in operation, but the performance and economic indicators are generally not up to the design requirements. In addition, China also imported dozens of screw freezers, many of which have different degrees of failure machines, most of which are design issues. At the same time, the compressor industry, the screw air compressor there is also a large fuel consumption, noise, power consumption and other issues. Therefore, we combined with the trial design of the freezer industry KA20C screw freezer, at the same time a more comprehensive experimental research work, the fingers