Core disruptive accident margin seal

Patent · Mon Jan 01 00:00:00 EST 1979

OSTI ID:863270

Golden, Martin P ^[1]

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1. Penn Township, Allegheny County, PA

Apparatus for sealing the annulus defined within a substantially cylindrical rotatable riser assembly and plug combination of a nuclear reactor closure head. The apparatus comprises an inflatable sealing mechanism disposed in one portion of the riser assembly near the annulus such that upon inflation the sealing mechanism is radially actuated against the other portion of the riser assembly thereby sealing the annulus. The apparatus further comprises a connecting mechanism which places one end of the sealing mechanism in fluid communication with the reactor cover gas so that overpressurization of the reactor cover gas will increase the radial actuation of the sealing mechanism thus enhancing sealing of the annulus.

• DOE Contract Number: E(11-1)-2395
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4135973
• OSTI ID: 863270
• Country of Publication: United States
• Language: English

Related Subjects

core
disruptive
accident
margin
seal
apparatus
sealing
annulus
defined
substantially
cylindrical
rotatable
riser
assembly
plug
combination
nuclear
reactor
closure
head
comprises
inflatable
mechanism
disposed
portion
near
inflation
radially
actuated
connecting
fluid
communication
cover
gas
overpressurization
increase
radial
actuation
enhancing
plug combination
annulus defined
apparatus comprises
nuclear reactor
fluid communication
cover gas
riser assembly
closure head
substantially cylindrical
reactor cover
apparatus comprise
accident margin
mechanism disposed
cylindrical rotatable
core disruptive
margin seal
disruptive accident
inflatable seal
/376/220/976/