Study of ITER equatorial port plug handling system and vacuum sealing interface

Martins, Jean-Pierre; Doceul, L.; Marol, Sébastien; Delchié, Elise; Cordier, J.J.; Levesy, B.; Tesini, A.; Ciattaglia, E.; Tivey, R.; Gillier, René; Abbes, Christophe

doi:10.1016/j.fusengdes.2009.01.045

Cited by 6 publications

(4 citation statements)

References 3 publications

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“…Due to architectural variations, particularly in the UP, certain RM strategies cannot be implemented. However, the cask and plug remote handling system is designed for ITER [9], and some RM maintenance strategies could be considered [10].…”

Section: Rm Function Requirementsmentioning

confidence: 99%

Design and Development on the Remote Maintenance Tools and Strategy of the Port Closure Plate in DEMO

Li,

Wu,

Eskelinen

et al. 2024

IEEE Trans. Plasma Sci.

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In the international thermonuclear experimental reactor (ITER) and the demonstration power plant (DEMO), there are three kinds of ports: the upper port (UP), the equatorial port (EP), and the lower port (LP). The applications and structures of the upper, equatorial, and LPs are different between those of ITER and DEMO. In DEMO, the breeding blankets (BBs) could be removed from the UP, a multipurpose deployer is transported and installed in the EP, and the divertor is maintained through the LP. It is noted that during remote maintenance (RM), the operating environment must be safe for the operators. To achieve this goal, reliable RM tools and RM strategies must be designed and developed. One of the containment barriers of the tokamak is the port closure plates (PCPs), which weighs between 1.3 and 25 tons depends on its location, and the PCPs need to be removed during the maintenance process. Therefore, in this article, the current designs of the PCPs are first presented. Then, the RM tools in both commercial and research stages are studied for the RM of the PCPs. Next, the RM strategies are designed and developed for each port. Finally, suggestions for the development of different RM tools are proposed.

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Section: Rm Function Requirementsmentioning

confidence: 99%

Design and Development on the Remote Maintenance Tools and Strategy of the Port Closure Plate in DEMO

Li,

Wu,

Eskelinen

et al. 2024

IEEE Trans. Plasma Sci.

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“…a) The (bolted) double flange [16] is a kind of frame consisting of an additional flange on the VV side and a flange on the PP side that are connected with a somewhat elastic sheet metal bend. A double spring-loaded C-ring seal with intermediate vacuum between seals this frame to the VV and to the PP.…”

Section: Application Of Iter Solutionsmentioning

confidence: 99%

DEMO vacuum vessel port closure plate sealing and fixation activities

Haertl

Bachmann

Franke

et al. 2023

Fusion Engineering and Design

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“…), the rescue of such a complex system might be impossible in the tight environment of a cask. Recent design progress has been made in order to provide passive guiding features for the plug and avoiding cantilevered loads on the tractor [5]. For removal, the plug cantilever load is transferred to the port floor rails through wheels (or skids).…”

Section: Plug Handlingmentioning

confidence: 99%