Nuclear core positioning system
Patent
·
OSTI ID:863271
- Irwin, PA
- Greensburg, PA
- Murrysville, PA
A structural support system for the core of a nuclear reactor which achieves relatively restricted clearances at operating conditions and yet allows sufficient clearance between fuel assemblies at refueling temperatures. Axially displaced spacer pads having variable between pad spacing and a temperature compensated radial restraint system are utilized to maintain clearances between the fuel elements. The core support plates are constructed of metals specially chosen such that differential thermal expansion produces positive restraint at operating temperatures.
- Assignee:
- Westinghouse Electric Corp. (Pittsburgh, PA)
- Patent Number(s):
- US 4135974
- OSTI ID:
- 863271
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
/376/976/
achieves
allows
assemblies
axially
axially displaced
chosen
clearance
clearances
compensated
conditions
constructed
core
core support
differential
differential thermal
displaced
elements
expansion
fuel
fuel assemblies
fuel element
fuel elements
maintain
metals
nuclear
nuclear core
nuclear reactor
operating
operating condition
operating conditions
operating temperature
operating temperatures
pad
pads
plates
positioning
positive
produces
radial
reactor
refueling
refueling temperature
relatively
restraint
restricted
spacer
spacing
specially
structural
structural support
sufficient
support
support plate
temperature
temperature compensated
temperatures
thermal
thermal expansion
utilized
variable
achieves
allows
assemblies
axially
axially displaced
chosen
clearance
clearances
compensated
conditions
constructed
core
core support
differential
differential thermal
displaced
elements
expansion
fuel
fuel assemblies
fuel element
fuel elements
maintain
metals
nuclear
nuclear core
nuclear reactor
operating
operating condition
operating conditions
operating temperature
operating temperatures
pad
pads
plates
positioning
positive
produces
radial
reactor
refueling
refueling temperature
relatively
restraint
restricted
spacer
spacing
specially
structural
structural support
sufficient
support
support plate
temperature
temperature compensated
temperatures
thermal
thermal expansion
utilized
variable