Device for facilitating the insertion and withdrawal of fuel assemblies from a nuclear reactor. [LMFBR]
A device is provided which is installed in a reactor prior to carrying out refueling operations and which accurately locates and isolates a selected core location to permit rapid withdrawal and insertion of fuel subassemblies at that location. A shielded plug designed to cooperate with the refueling apparatus is inserted into an access port in the reactor head. A structural shroud extends down from the plug and carries at its lower end a radially floating, hexagonal spreader tube with mechanisms to rotate it for angular alignment purposes and a linear drive for inserting it into the core. The upper end of the spreader tube serves as a guide for leading the fuel handling apparatus into alignment with the chosen subassembly.
- Assignee:
- Combustion Engineering, Inc.
- Patent Number(s):
- US 3948723
- Application Number:
- TRN: 76-016086
- OSTI ID:
- 7349880
- Resource Relation:
- Patent File Date: Filed date 2 Jan 1974
- Country of Publication:
- United States
- Language:
- English
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