Below grade cask transfer facility
AssigneeHoltec International
InventorsKrishna P. Singh, Stephen J. Agace
Life of this patent
Estimating the term…
Abstract
A system and method for transferring a canister of spent nuclear fuel from a transfer cask to a receiving cask. In one aspect, the system comprises a below grade opening adapted for receiving a cask; a platform positioned within the opening, the platform capable of vertical movement; and at least two jacks for vertically moving the platform; wherein the platform is capable of lowering the cask within the opening.
Claims19
A system for transferring spent nuclear fuel comprising:
- a cask having a horizontal cross-section for receiving the spent nuclear fuel;
- a below grade opening adapted for receiving the cask;
- a cask support means positioned within the opening, the cask support means capable of vertical movement;
- means for vertically moving the cask support means;
- wherein the cask support moans is capable of lowering the cask within the opening;
- and
- a shell forming walls of the opening, the shell having a horizontal cross section that is slightly larger than the horizontal cross section of the cask.
A system for transferring spent nuclear fuel comprising:
- a below grade opening for receiving a cask;
- a cask support means positioned within the opening, the cask support means capable of vertical movement between a fully lowered position and fully raised position;
- means for vertically moving the cask support means;
- the cask support means capable of lowering the cask within the opening
- wherein when the cask support means is in the fully lowered position and supporting the cask, approximately 30 inches of the cask is above grade level.
A system for transferring spent nuclear fuel
- a below grade opening having a bottom and adapted for receiving a cask;
- a cask support means positioned within the opening, the cask support means capable of vertical movements;
- means for vertically moving the cask support means;
- the cask support means capable of lowering the cask within the opening;
- a setdown structure positioned at the bottom of the opening and below the cask support means;
- and
- wherein when the cask support means is in a fully lowered position, the cask support means contacts the setdown structure and the cask support means and any load being borne by the cask support means is supported by the setdown structure.
A system for transferring spent nuclear fuel comprising:
- a below grade opening adapted for receiving a cask;
- a platform for supporting the cask, the platform positioned within the opening and capable of vertical movement;
- means for vertically moving the platform;
- the platform capable of lowering the cask within the opening;
- the platform having a center, a top surface a hole near the center, and a plurality of cask positioning plates on the top surface.
A system for transferring spent nuclear fuel
- a below grade opening for receiving a cask;
- a cask support means positioned within the opening, the cask support means capable of vertical movement;
- and
- means for vertically moving the cask support means;
- vertical guide rods on which the cask support means can move;
- and
- wherein the vertical guide rods have a top and a bottom, the vertical guide rods being secured at the top so that upon loading the cask support means the vertical guide rods are in tension.
A system for transferring spent nuclear fuel comprising:
- a cask for receiving the spent nuclear fuel;
- a below grade opening adapted for receiving the cask;
- a cask support means positioned within the opening, the cask support means capable of vertical movement between a fully lowered position end fully raised position;
- means for vertically moving the cask support means;
- the cask support means capable of lowering the cask within the opening;
- wherein when the cask support means is in the fully lowered position and supporting the cask, a portion of the cask is above grade level.
Dependencies are inferred from the claim text.