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Nuclear reactor construction with bottom supported reactor vessel
Sharbaugh, John E
United States 1987
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Título:
Nuclear reactor construction with bottom supported reactor vessel
Autor:
Sharbaugh, John E
Assuntos:
376/976
;
addition
;
allow
;
anchored
;
annular
;
apart
;
base
;
bed
;
bellows
;
below
;
bottom
;
central
;
closed
;
concrete
;
connected
;
construction
;
containment
;
continuous
;
coolant
;
core
;
cylindrical
;
deck
;
density
;
disposed
;
event
;
expand
;
extend
;
extendible
;
extending
;
extends
;
flat
;
flexibly
;
form
;
formed
;
freely
;
granular
;
guide
;
heats
;
holding
;
housing
;
imposed
;
imposition
;
improved
;
insulate
;
insulating
;
interconnect
;
interconnecting
;
inward
;
lateral
;
limiting
;
linear
;
liquid
;
loads
;
magnesium
;
mat
;
material
;
metal
;
metal nuclear
;
motions
;
nuclear
;
occurrence
;
outwardly
;
oxide
;
particles
;
pedestal
;
periphery
;
plurality
;
pool
;
preferably
;
pressure
;
prevent
;
providing
;
radially
;
reactor
;
reactor vessel
;
reinforced
;
relationship
;
retractable
;
sand-like
;
sealably
;
seismic
;
serially
;
spaced
;
structure
;
substantially
;
support
;
supported
;
supporting
;
supports
;
surrounding
;
therefrom
;
top
;
uniformly
;
upwardly
;
vessel
;
wall
Notas:
AM02-76CH94000
Descrição:
An improved liquid metal nuclear reactor construction has a reactor core and a generally cylindrical reactor vessel for holding a large pool of low pressure liquid metal coolant and housing the core within the pool. The reactor vessel has an open top end, a closed flat bottom end wall and a continuous cylindrical closed side wall interconnecting the top end and bottom end wall. The reactor also has a generally cylindrical concrete containment structure surrounding the reactor vessel and being formed by a cylindrical side wall spaced outwardly from the reactor vessel side wall and a flat base mat spaced below the reactor vessel bottom end wall. A central support pedestal is anchored to the containment structure base mat and extends upwardly therefrom to the reactor vessel and upwardly therefrom to the reactor core so as to support the bottom end wall of the reactor vessel and the lower end of the reactor core in spaced apart relationship above the containment structure base mat. Also, an annular reinforced support structure is disposed in the reactor vessel on the bottom end wall thereof and extends about the lower end of the core so as to support the periphery thereof. In addition, an annular support ring having a plurality of inward radially extending linear members is disposed between the containment structure base mat and the bottom end of the reactor vessel wall and is connected to and supports the reactor vessel at its bottom end on the containment structure base mat so as to allow the reactor vessel to expand radially but substantially prevent any lateral motions that might be imposed by the occurrence of a seismic event. The reactor construction also includes a bed of insulating material in sand-like granular form, preferably being high density magnesium oxide particles, disposed between the containment structure base mat and the bottom end wall of the reactor vessel and uniformly supporting the reactor vessel at its bottom end wall on the containment structure base mat so as to insulate the reactor vessel bottom end wall from the containment structure base mat and allow the reactor vessel bottom end wall to freely expand as it heats up while providing continuous support thereof. Further, a deck is supported upon the side wall of the containment structure above the top open end of the reactor vessel, and a plurality of serially connected extendible and retractable annular bellows extend between the deck and the top open end of the reactor vessel and flexibly and sealably interconnect the reactor vessel at its top end to the deck. An annular guide ring is disposed on the containment structure and extends between its side wall and the top open end of the reactor vessel for providing lateral support of the reactor vessel top open end by limiting imposition of lateral loads on the annular bellows by the occurrence of a lateral seismic event.
Editor:
United States
Data de criação/publicação:
1987
Idioma:
Inglês
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