Compressor is a kind of driven fluid machinery which can make low pressure gas to high pressure gas, and it is the heart of refrigeration system. The supporting compressor of air separation plant produced by DEAR air separation adopts advanced technologies such as three-dimensional flow impeller designed by advanced computer software, high-efficiency vane diffuser, high-efficiency import guide vane, high-speed and heavy-duty growth gear with high-precision carburizing tooth surface, new adjustable tilting pad bearing, high-efficiency large set of plate intercooler, new adjustable and automatic compensation deformation intermediate gas pipeline, etc Technique and structure. The supporting compressor of air separation plant has the advantages of compact structure, reasonable arrangement, high isothermal efficiency, wide industrial and mining scope, small vibration, low noise, long operation cycle, convenient operation and maintenance, etc. It has been proved by long-term operation that t