Reactor internals lower radial support system
Abstract
Abstract A LOWER RADIAL SUPPORT SYSTEM IS PROVIDED FOR A NUCLEAR REACTOR INTERNALS WHICH PERMITS FREE RADIAL AND AXIAL DIFFERENTIAL EXPANSION WHILE PREVENTING THE LOWER END OF THE INTERNALS FROM MOVING OFF CENTER DUE TO VIBRATION OR EARTHYQUAKE SHOCK. ONE EMBODIMENT INCLUDES A PLURALITY OF INCONEL PLATES WELDED TO THE BOTTOM OF THE REACTOR PRESSURE VESSEL AND AN INCONEL CENTERING SLEEVE, THE UPPER END OF WHICH IS FITTED TO THE BOTTOM SUPPORT PLATE FOR THE REACTOR CORE IN SUCH A WAY AS TO HAVE AN INTERFERENCE FIT ON THE INSIDE DIAMETER OF THE SLEEVE AT OPERATING TEMPERATURE. THE LOWER END OF THE SLEEVE IS FITTED TO THE PLATE STRUCTURE WITH A TAPERED FIT TO PERMIT VERTICAL DIFFERENTIAL EXPANSION OF THE REACTOR INTERNALS.
Inventors
- 👤 Arthur G Thorp
Bibliographic Details
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |