49. Under what circumstances should a pneumatic compressor be shut down urgently?
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49. Under what circumstances should a pneumatic compressor be shut down urgently?
(1) The unit vibrates violently, with sounds of metal striking. (2) When the bearing temperature exceeds the high-high alarm temperature or smoking occurs. (3) When sparks are emitted from the bearings and steam seals. (4) Water hammer occurs in the turbine. (5) The vacuum level drops below 40 kPa, and it cannot be lifted. (6) When the fuel tank level drops and it is not possible to top up the fuel. (7) Severe fires and major accidents occur.
(1) The unit experiences severe vibration along with metallic clanking sounds; (2) when the bearing temperature exceeds 75°C or smoking occurs. (3) When sparks are emitted from the bearings and steam seals. (4) Water hammer occurs in the turbine. 5) Failure of the main oil pump, with the bearing oil pressure dropping below 30 kPa. 6) When the fuel tank level drops and it is not possible to top up the fuel. 7) Severe fires and major accidents occur. 8) Sudden changes in process operating conditions can cause the unit to operate abnormally; if the cause cannot be identified within a short time, the unit should be shut down urgently as instructed by the shift leader.