Hydraulic and earth engineering – Marine structure or fabrication thereof
Patent
1991-05-03
1992-10-27
Corbin, David H.
Hydraulic and earth engineering
Marine structure or fabrication thereof
166364, 166367, 4052244, E21B 4301
Patent
active
051583976
ABSTRACT:
A passive fire protection system for the protection of articulating joints and flexible connections against flame and heat in a severe total environment type fire such as a hydrocarbon fire which includes multi-layered flexible protective covers on articulating joints and flexible connections. These multi-layered flexible covers comprise an outer section of one or more layers of cloths, the outer section being of an abrasion resistant, weatherproof outer layer, with a woven ceramic fiber to resist flame impingement, and reinforcement mesh and stitching as required. The inner section is a thick interior multi-layered composite blanket of ceramic fibrous materials, barrier films, and an inner layer of abrasion resistant cloth to minimize heat transfer to the articulating joint or flexible connection. The thickness of the interior layer is determined by the mass being protected and the height of the allowable temperature for a particular fire rating. The multi-layered fire protective cover may comprise elongated tube-like covers as well as end caps depending on the structure being protected. Also disclosed is a method of providing a passive fire protective system for articulating joints and flexible connections. The invention is disclosed in connection with a offshore marine riser tensioner system but also may be used wherever fire protection is needed.
REFERENCES:
patent: 4619553 (1986-10-01), Fischer
patent: 4770563 (1988-09-01), Pido
patent: 4883387 (1989-11-01), Myers et al.
patent: 4923332 (1990-05-01), Sanocki et al.
Ester Alan E.
Koos John D.
Corbin David H.
Dwyer Joseph R.
Paul-Munroe Hydraulics, Inc
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