论文部分内容阅读
生产和分配冷源用的压缩机车间常常设有二级压缩机,例如ДАУ-80型压缩机,它们是以双速电动机作为传动机构的。在解决这类压缩机成套自动化的问题时,由于下列要求而出现了一定的困难。带双速电动机的压缩机,应能根据热载荷在每一速度（生产能力）上工作;压缩机只有在第一速度（最小）得到充分发挥之后,才能接通第二速度（最大）;由敖德萨实验工厂和“冷装自动机”控制车间成批生产的供氨气二级压缩机自动化用的ДАУ-400型操纵台,只能用于单速电动机。上述操纵台用于带双速电动机的压缩机自动化时,要求在线路中引入补充继电器设备,
Compressor plants for the production and distribution of cold sources often have secondary compressors such as ДАУ-80 compressors, which are based on two-speed motors. In solving such a complete set of compressor automation problems, due to the following requirements and there have been some difficulties. Compressors with two-speed motor should be able to work at each speed (capacity) based on thermal load; the compressor can not be switched on (max) until the first speed (minimum) has been fully utilized; The ДАУ-400 console, which is used for the automation of secondary ammonia compressor at the Odessa pilot plant and the cold-rolled automatic machine control plant, can only be used for single-speed motors. The above control console is used in the automation of a compressor with a two-speed motor, which requires the introduction of a supplementary relay device in the line,