Method for replacing a fuel assembly guide pin
Patent
·
OSTI ID:6470533
A method for replacing an existing fuel assembly guide pin in an upper core plate of a nuclear reactor system is described, comprising the steps (a) removing the lower portion of the existing pin adjacent the bottom of the upper core plate; (b) removing the section of the existing pin remaining within the upper core plate to a level adjacent the pin retaining nut; (c) removing the central portion of the remaining part of the existing pin to create a longitudinal bore therethrough; (d) inserting a replacement fuel assembly guide pin into the bottom of the upper core plate and through the longitudinal bore created in the existing pin; and (e) locking the replacement fuel assembly guide pin onto the remaining portion of the existing fuel assembly guide pin.
- Assignee:
- B and W Nuclear Service Co., Lynchburg, VA (United States)
- Patent Number(s):
- US 5221514; A
- Application Number:
- PPN: US 7-929046
- OSTI ID:
- 6470533
- Country of Publication:
- United States
- Language:
- English
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