Improvement of Rim Seal Fire Protection System
Keywords:
Rim seal, Nozzles, Floating roof tankAbstract
Rim seal fires are those that occur in the edge of the rim seal region of the floating roof tank. These are
the most common cause of the fire in the floating roof tanks. Ream seal fire is caused by following reasons: 1)
Lightning Strikes.2) Sparks produced by static electricity. The automatic rim seal fire detection and extinguishing
system immediately detects and suppresses a rim seal fire till such time the foam pourer system is activated. The
company is facing the problem in deciding the number of nozzles, distance between the nozzles and finding the
orifice diameter of nozzles resulting into uncertainty in discharge time. The number of nozzles is based on the
diameter of the tank. The main objective of this project is to identify the problems of the Fire Protection System
Used in the Rim Seal and work on diameter of nozzle orifice, deciding the distance between the nozzles and
capacity of pressure vessels (Module). The aim of this project is to flood the rim seal area which is of 300mm with
AFFF foam so that the fire doesn’t comes in contact with air resulting in extinguishing of fire.