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Rotation principle of oil-free scroll machine

Rotation principle of oil-free scroll machine

For example: 11kw  3x3.7kw set:  air-end A, B, C

Compressor will upload at 0.6Mpa, it will start air-end A at first, the start up time is 5 seconds, if pressure reach higher than 0.6Mpa, will not start air-end B and C;  if pressure can not reach 0.6Mpa in 5 seconds, will start air-end B;  and keep start air-end C if pressure still not higher than 0.6Mpa.

When compressor running between 0.6-0.78Mpa, air-end A, B, C will start to work by turn, for example, turn on air-end A and B, air-end C stay in rest, we set the duty time is 45 minutes,

after working 45 minutes, compressor will turn off air-end A (if A working longest time of the three air-ends), and run air-end C, same when 45 minutes, compressor turn off air-end B (if B working longest time), and run air-end A again,  compressor PLC will record each air-end working time automatically.

When compressor pressure is higher than 0.78Mpa and less than 0.8Mpa, all air-end will stop work for 5 seconds, if still higher than 0.78Mpa after this time, compressor will close one set air-end, if pressure reach 0.8Mpa, will close all air-ends.