Where should the deluge valve room for the spray pipes in the LNG tank farm be located?
Thread Content
LNG tanks require spray pipes; should they be controlled by deluge valves? Is it necessary to build a deluge valve room? Can it be placed 15 meters outside the tank wall or 10 meters outside the cofferdam? Is it necessary to be outside the range of radiant heat?
It can generally be installed outside the cofferdam, in a location that is easy to access, without interfering with other operations or traffic.
A few meters around the storage tank perimeter is sufficient; a valve well should be installed, and the valves can be electric or pneumatic, which is more convenient.
According to GB50160 8.4.5, 15m away from the protected equipment
In the case of a full-volume tank, there should be no cofferdam, and the location of the rain shower valves must not fall within the 15 thermal radiation range specified in the FHA report. As for the rainwater valve room, it is generally built in cities in the north, while it may or may not be built in those in the south; an outdoor installation is also possible.