Cavity closure arrangement for high pressure vessels
Patent
·
OSTI ID:864060
A closure arrangement for a pressure vessel such as the pressure vessel of a high temperature gas-cooled reactor wherein a liner is disposed within a cavity penetration in the reactor vessel and defines an access opening therein. A closure is adapted for sealing relation with an annular mounting flange formed on the penetration liner and has a plurality of radially movable locking blocks thereon having outer serrations adapted for releasable interlocking engagement with serrations formed internally of the upper end of the penetration liner so as to effect high strength closure hold-down. In one embodiment, ramping surfaces are formed on the locking block serrations to bias the closure into sealed relation with the mounting flange when the locking blocks are actuated to locking positions.
- Research Organization:
- GA Technologies Inc., San Diego, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AT03-76SF71023
- Assignee:
- The United States of America as represented by the United States Department of Energy (Washington, DC)
- Patent Number(s):
- 4,303,177
- Application Number:
- 06/017418
- OSTI ID:
- 864060
- Country of Publication:
- United States
- Language:
- English
Similar Records
Cavity closure arrangement for high pressure vessels
Refueling seal arrangement for nuclear reactor vessel
Closure arrangement for spent nuclear fuel shipping containers
Patent
·
Mon Nov 30 23:00:00 EST 1981
·
OSTI ID:5448688
Refueling seal arrangement for nuclear reactor vessel
Patent
·
Tue Jul 19 00:00:00 EDT 1988
·
OSTI ID:6868970
Closure arrangement for spent nuclear fuel shipping containers
Patent
·
Mon Nov 27 23:00:00 EST 1989
·
OSTI ID:7170094
Related Subjects
/220/292/376/976/
access
actuated
adapted
annular
arrangement
bias
block
blocks
cavity
closure
closure arrangement
cooled reactor
defines
disposed
effect
embodiment
engagement
flange
formed
gas-cooled
gas-cooled reactor
hold-down
interlocking
internally
liner
locking
mounting
movable
outer
penetration
plurality
positions
pressure
pressure vessel
pressure vessels
radially
ramping
reactor
reactor vessel
relation
releasable
sealed
sealed relation
sealing
sealing relation
serrations
strength
surfaces
temperature
temperature gas
temperature gas-cooled
therein
thereon
upper
vessel
vessels
access
actuated
adapted
annular
arrangement
bias
block
blocks
cavity
closure
closure arrangement
cooled reactor
defines
disposed
effect
embodiment
engagement
flange
formed
gas-cooled
gas-cooled reactor
hold-down
interlocking
internally
liner
locking
mounting
movable
outer
penetration
plurality
positions
pressure
pressure vessel
pressure vessels
radially
ramping
reactor
reactor vessel
relation
releasable
sealed
sealed relation
sealing
sealing relation
serrations
strength
surfaces
temperature
temperature gas
temperature gas-cooled
therein
thereon
upper
vessel
vessels