Fluid handling – Destructible or deformable element controlled – Destructible element
Patent
1988-01-29
1989-04-11
Rivell, John
Fluid handling
Destructible or deformable element controlled
Destructible element
220 89A, F16K 1714
Patent
active
048196835
ABSTRACT:
A pressure release device for sealably mounting on a vessel adapted to contain a fluid under pressure not to exceed a predetermined maximum pressurization limit. The device comprises: (a) a pressure release conduit having an inlet and an outlet and providing an escape passage for the fluid to move from an outlet opening of the vessel through the inlet end of the conduit and out the outlet end of the conduit; (b) a recloseable self-activated fluid pressure release valve disposed in the outlet end of the conduit; (c) a nonrecloseable disc having a portion rupturable into fragments when the pressurization limit is exceeded and being disposed within the conduit between the outlet opening of the vessel and the release valve; and (d) a porous member disposed in the conduit between the disc and the release valve, the porous member having a total cross sectional open area at least about the sum of the cross sectional area of the rupturable portion of said disc and the cross sectional area of the outlet opening, such that when the disc ruptures in response to the pressurization limit being exceeded, fragments are restrained by the porous member from moving to the release valve, yet substantial clogging of the porous member is prevented such that the porous member maintains a cross sectional open area of at least about the cross sectional area of the outlet opening and the flow of the fluid through the conduit to the release valve is not substantially impeded.
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Buffham Brian W.
Marquardt Daniel J.
Petrolite Corporation
Rivell John
Wexler Robert E.
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