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Freeze vacuum drier's double-stage refrigeration system works
Apr 19, 2016

From dry box or catching water device back of low voltage low temperature (_40 ℃ around) steam State refrigeration agent, first into steam liquid separation device, for steam liquid separation, and gasoline separation (back gas occasionally with liquid drops, and oil drops), then after has been opened of as valve into double level compressor, by compressor compression Hou, became high pressure high temperature (100 ℃ around) gaseous refrigeration agent into oil separation device for oil and gas separation, separation out gas refrigeration agent into condensation device radiated condensation, separation out of lubricants, back to compressor crankshaft box (in the pressure).