Nuclear reactor pressure vessel support system
- McMurray, PA
A support system for nuclear reactor pressure vessels which can withstand all possible combinations of stresses caused by a postulated core disrupting accident during reactor operation. The nuclear reactor pressure vessel is provided with a flange around the upper periphery thereof, and the flange includes an annular vertical extension formed integral therewith. A support ring is positioned atop of the support ledge and the flange vertical extension, and is bolted to both members. The plug riser is secured to the flange vertical extension and to the top of a radially outwardly extension of the rotatable plug. This system eliminates one joint through which fluids contained in the vessel could escape by making the fluid flow path through the joint between the flange and the support ring follow the same path through which fluid could escape through the plug risers. In this manner, the sealing means to prohibit the escape of contained fluids through the plug risers can also prohibit the escape of contained fluid through the securing joint.
- DOE Contract Number:
- E(11-1)-2395
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Number(s):
- US 4115193
- OSTI ID:
- 863185
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
reactor
pressure
vessel
support
vessels
withstand
combinations
stresses
caused
postulated
core
disrupting
accident
operation
provided
flange
upper
periphery
annular
vertical
extension
formed
integral
therewith
positioned
atop
ledge
bolted
plug
riser
secured
top
radially
outwardly
rotatable
eliminates
joint
fluids
contained
escape
fluid
flow
path
follow
risers
manner
sealing
means
prohibit
securing
sealing means
reactor pressure
pressure vessel
nuclear reactor
fluid flow
flow path
radially outwardly
radially outward
pressure vessels
reactor operation
rotatable plug
positioned atop
vessel support
integral therewith
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