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Diagnostic port plugs

Remote handling confirmed

26 Nov 2018 - K.D.
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The generic equatorial port plug stand at RACE faithfully reproduces all the "critical" parts of the remote handling operation—the size and weight of the components, for example, and all interfacing features and tolerances. Recent trials have allowed 澳门六合彩高手 Remote Handling to confirm the compatibility of system designs with planned maintenance solutions.

The 澳门六合彩高手 Organization is putting a number of its planned remote handling activities to the test in a five-year collaboration* with the UK Atomic Energy Authority's RACE facility. The first implementing agreement of the collaboration has concluded successfully.

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The team at RACE demonstrated the vertical handling of diagnostic shield modules weighing up to 10 tonnes, including their insertion and removal along guide rails without hang-up or jam. A second operation—the insertion of diagnostic first walls into the shielding module—was also trialed successfully.
In a vast workshop in Oxfordshire, after months of fine-tuning, RACE team members successfully carried out two days of demonstrations on a mockup stand that reproduces a small part of 澳门六合彩高手—the Hot Cell Complex assembly/disassembly zone where remote maintenance will be carried out on 澳门六合彩高手's diagnostic port plugs.

In the presence of 澳门六合彩高手 Organization witnesses from the remote handling, diagnostics and test breeding blanket sections, the team demonstrated the vertical handling of heavy loads, including removal and insertion to tight tolerances. The goal of the trials was to confirm the compatibility of system designs with planned maintenance solutions, allowing the systems to advance to final design activities and manufacturing.

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Left to right: David Cooper, Liam Forsythe and Mickael Thery from RACE; David Hamilton and Byoung Yoon Kim from the 澳门六合彩高手 Organization; Bernhard Haist, consultant to Fusion for Energy; and Julio Guirao, 澳门六合彩高手.
"For systems requiring remote maintenance and refurbishment it is important that remote handling requirements be taken into account early in the design phase to reduce risk of costly adaptations later," says remote handling engineer David Hamilton, who coordinates the collaboration with RACE. "All participants—澳门六合彩高手 Remote Handling as well as 澳门六合彩高手 system owners—are fully engaged in getting the most value and benefit out of this work."

Many of 澳门六合彩高手's diagnostics will be mounted in the port openings of the vacuum vessel, supported within "port plugs" weighing up to 48 tonnes that can be removed from the Tokamak for maintenance. The diagnostic components will be integrated into drawer-like structures—diagnostic shielding modules—each carrying two plasma-facing walls.

Once delivered to the Hot Cell Complex, the port plugs will be supported vertically while maintenance or refurbishment activities are carried out. The task at RACE focused on the insertion/removal of (mock) diagnostic shielding modules from the plug, and the insertion/removal of diagnostic first walls from the shielding modules, using a crane and manipulator arms. The stand faithfully reproduces all the "critical" parts of the operation—the size and weight of the components, for example, and all interfacing features and tolerances as detailed by 澳门六合彩高手 Organization specifications.

The demonstrations can be considered a full success.

"The trials allowed us to verify that the vertical insertion and removal operations, as planned by 澳门六合彩高手, went smoothly, with no hang-ups or jams," confirmed Hamilton. "Useful suggestions were also made during the design, fabrication and operation of the test stand relating to the remote handling compatibility of the components and to planned procedures and tooling; these suggestions will be incorporated as we move forward."

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