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Fuel subassembly leak test chamber for a nuclear reactor

Patent ·
OSTI ID:863046
 [1]
  1. Santa Ana, CA
+ Show Author Affiliations
A container with a valve at one end is inserted into a nuclear reactor coolant pool. Once in the pool, the valve is opened by a mechanical linkage. An individual fuel subassembly is lifted into the container by a gripper; the valve is then closed providing an isolated chamber for the subassembly. A vacuum is drawn on the chamber to encourage gaseous fission product leakage through any defects in the cladding of the fuel rods comprising the subassembly; this leakage may be detected by instrumentation, and the need for replacement of the assembly ascertained.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Number(s):
US 4082607
OSTI ID:
863046
Country of Publication:
United States
Language:
English

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Related Subjects

/376/976/
ascertained
assembly
chamber
cladding
closed
closed providing
comprising
container
coolant
defects
detected
drawn
dual fuel
encourage
fission
fission product
fuel
fuel rod
fuel rods
fuel subassembly
gaseous
gripper
individual
individual fuel
inserted
instrumentation
isolated
leak
leakage
lifted
linkage
mechanical
mechanical linkage
nuclear
nuclear reactor
pool
product
providing
reactor
reactor coolant
replacement
rods
subassembly
vacuum
valve