Storage and Transportation Operations (2018.9.4)

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Continue learning *Light oil guidelines: Process unit areas and tank farms in large petrochemical enterprises should be equipped with separate fire protection water supply systems under stable high pressure, with the pressure preferably being ( ) MPa. The fire water supply system should not be combined with the circulating cooling water system, nor should it be used for other purposes. Fire pump systems should be equipped with dual power sources. The main fire pump should be an electric pump, while the backup pump should be powered by a diesel engine; the fuel reserve of the diesel engine should be sufficient to cover the operational needs of the unit for ( ) hours. The number of backup pumps should ensure 100% redundancy. The main pump for fire cooling water supply shall start under positive pressure and shall come online within 2 minutes upon receiving an alarm. The correct answer can be found at: 0.7～1.2 ； 6