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Active Component Transfer System
The Project
Highly radioactive components removed from a reactor core are typically inserted into an appropriate shielding flask for removal from the reactor vault. For further relocation these components must first be transferred into a separate flask designed and approved for transportation. Transfer of the contents from one flask to another requires a modular system that can be transported into and easily assembled in a staging area, and that has the capability to manipulate the very heavy loads of these large shielded flasks to obtain the precise alignment required for the transfer operation.
The Solution
Modular transfer frame sections are wheeled into a staging area and are manually aligned and attached using simple conventional tooling, Numet’s design incorporates adjustable feet that can be easily deployed to level the entire system on a misaligned surface. Flask interface carriages are positioned onto transfer frame rails and the flasks are lowered onto the system. The flasks can be adjusted in all axes to ensure that there is a perfect fit between the flasks for the shielded transfer of the radioactive contents.
Numet’s design is simple but rugged. All operations can be accomplished with the use of manual cranks or simple tools.
The fully assembled size of the system is 4' (h) x 8' (w) x 50' (l). It is designed to support loads up to 60 tons and can accommodate nine different flask-to-flask configurations.
Extensive engineering analysis was required to support the design process including structural analysis, frictional analysis, mechanical operation analysis, and a review of the impact loadings that could result from flasks inadvertently hitting the equipment during the flask loading operations.
Transfer System
With Flasks
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Modular Components Of
Transfer System
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Project Responsibility Highlights
- Manufacturing Technical Specification
- Component Technical Specification
- Manufacturing Support
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