In addition to preparing for the start-up operation of air compressor of air separation unit according to normal operation procedures, the interlock can be shielded or other interlocking can be removed as appropriate before starting, and then put into operation after normal start-up. It is necessary to keep the air compressor running slowly and stably. Otherwise, the safety valve will jump, which will cause the blower to trip and stop seriously. In addition, attention should be paid to whether the automatic switch between the starting oil pump and the main oil pump is normal.
