The fire protection facilities in the large API 650 uplifting tanks area

The fire-fighting facilities of the large API 650 uplifting tanks area mainly consist of fire-fighting pools, fire-fighting high-pressure water supply systems, fixed cooling water spray facilities, fire-fighting water supply pumps, and foam fire-fighting systems.

Fire-fighting water in large API 650 uplifting tanks areas should be stored in a fixed fire-fighting pool. The effective volume of the fire-fighting pool must meet the amount of fire-fighting water required for one fire-fighting, and it should not be combined with other water facilities. The fire tank should be equipped with liquid level detection, high and low liquid level alarms and automatic water replenishment facilities. The water replenishment time of the fire pool should not exceed 48h.

The fire-fighting cooling water should adopt a stable high-pressure water supply system, and the fire-fighting pipe network control valve should adopt a remote manual start program control system to ensure the rapid start-up of the fire-fighting facilities. The fire-fighting water supply pipe network shall adopt an independent annular arrangement, and the water inlet pipe shall not be less than two. Fire-fighting water supply pipes should be laid buried between the fire dikes and roads in the tank area. Outdoor fire hydrants should be evenly arranged on the pipe network with a spacing of no more than 60m. The ring pipe network should be divided into several independent pipe sections with valves, and the number of fire hydrants in each section should not exceed 5.

The inlet pipe of the API 650 uplifting tanks fixed cooling water sprinkler facility should be equipped with an electric control valve, a vent valve and a filter, and should be located outside the fireproof lift; the lower end of the inlet riser pipe should be provided with a cleaning port, and the lower end of the cleaning port should be higher than the tank foundation 0.3m or more.

The fire water supply pump should be equipped with 2 power sources. When the diesel engine is used as the power source, the oil reserve of the diesel engine should meet the continuous operation of the unit for 6 hours. The fire-fighting water supply pump should be an electric pump, and the backup pump should be a diesel pump, and 100% flow rate should be considered for backup. In addition to meeting the requirements of the rated working conditions, the water supply capacity of the fire cooling water pump should also meet the requirement that the pump head is not less than 65% of the rated head at 150% of the rated flow.

The large-scale API 650 uplifting tanks foam fire-fighting system shall adopt a fixed foam fire-extinguishing system. The foam fire extinguishing system shall be controlled by the remote manual start program, and shall have the function of on-site manual operation.