【Ethylene Tank Farm Technology】How should the fire-fighting water volume for the water spray fire suppression system in an ethylene tank farm be designed?
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How should the fire-fighting water volume for the water spray fire suppression system in the ethylene tank farm be designed? In accordance with the standard GB50219-2014 \"Code for Design of Water Sprinkler Systems\", spherical tanks with a single-tank volume of ≥1000 m3 are cooled using fixed water sprinkler systems. The fire water supply rate is set at 10.2 L/min·m2, the supply duration during a fire is designed to be 6 hours, and the system response time shall not exceed 120 seconds. A water spray fire extinguishing system consists of spray nozzles, pipes, filters, deluge valve assemblies, an alarm system, and more. The deluge valve assembly is installed at a distance of more than 15 meters from the protected area, and the deluge valves are designed to be explosion-proof. The rainwater control valve assembly can be started and stopped automatically, remotely, or manually on-site. The required water source is supplied by a high-pressure fire water supply pipeline, with a supply pressure of 0.8~1.2 MPa(G) and the water temperature at normal levels.
The fire water volume design for the water spray fire extinguishing system in the ethylene tank farm shall be based on the GB50219-2014 standard. For spherical tanks with a single-tank volume of 1000 cubic meters or more, a fixed water spray fire extinguishing system is used for cooling. The water supply rate is 10.2 liters per minute per square meter; the system must provide water supply for 6 hours after a fire breaks out, and its response time shall not exceed 120 seconds. Relevant facilities include nozzles, pipes, filters, deluge valve assemblies, and alarm systems. The rain shower valve assembly should be installed 15 meters away from the protected area, meet explosion-proof design standards, and support automatic, remote control, as well as manual operation. The water supply system should provide a stable high pressure of 0.8 to 1.2 MPa(G), with the water temperature remaining at normal levels. .