What are the safety precautions for starting and operating large air compressors?

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1) The cartridge filter before the air compressor suction pipe should be operating properly. 2) Large air compressors should be equipped with alarm and interlock devices for surge, vibration, oil pressure, oil temperature, water pressure, water volume, bearing temperature, and exhaust temperature, in accordance with the characteristics of the equipment. An air-drop test must be conducted before driving. 3) Large air compressors should be equipped with a high-level oil tank, as well as interlock protection devices for the automatic start-up and shutdown of the auxiliary oil pump when the oil pressure drops. 4) All protective devices and safety accessories checked before driving must be in good condition; otherwise, driving is strictly prohibited. 5) For large air compressor cooling water systems, the water cut-off protection device must be sensitive. If the water supply is interrupted during operation, forcing water supply is strictly prohibited; the machine must be stopped for handling. 6) Continuous cold starts of large air compressors should not exceed three times, and hot starts should not exceed two times. Pay attention to the startup interval. 7) When turning the rotor, it is necessary to rotate it at least one full turn; if this is the first time the machine is started, it should be turned several times. If turning the rotor is difficult or if there are sounds of collision, inspections should be carried out to resolve the issue. The equipment is required to be started in accordance with the principle of “whoever turns the crank starts it”.