Community Research and Development Information Service - CORDIS

FP7

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

Funded under: FP7-EURATOM

Abstract

In the field of the ITER port plug engineering and integration task, CEA has contributed to define proposals concerning the port plugs vacuum sealing interface with the vessel flange and the equatorial plug handling.
The 2001 baseline vacuum flange sealing consisted of TIG welding of a 316L strip plate on to U shapes. This arrangement presented some issues like welding access, implementation of tools, lip consumption, complex local leak test, continuous leak checking. Therefore, an alternate sealing solution based on the use of metallic gaskets is proposed. The different technical aspects are discussed to explain how this design can simplify the maintenance and deal with safety and vacuum requirements.
The design of the mechanical attachment and vacuum sealing of the plug has constantly evolved, but the associated remote handling equipment was not systematically reviewed. An update of the cask and maintenance procedure was studied in order to design it in accordance with the last generic plug flange design. This includes a concept of a gripping system that uses the plug flange bolting area and, to help the remote handling process, a cantilever assisting system is suggested to increase the reliability of the transfer operation between vacuum vessel and cask.

Additional information

Authors: MARTINS J-P, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);DOCEUL L, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);MAROL S, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);DELCHIE E, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);CORDIER J-J, ITER International Organization, Saint-Paul-lez-Durance (FR);LEVESY B, ITER International Organization, Saint-Paul-lez-Durance (FR);TESINI A, ITER International Organization, Saint-Paul-lez-Durance (FR);CIATTAGLIA E, EFDA Close Support Unit, Garching (DE);TIVVEY R, Max-Planck-Institut für Plasmaphysik, IPP-EURATOM Association, Garching (DE);GILLIER R, GARLOCK - Sealing Technologies - 90, St-Etienne (FR);ABBES C, GARLOCK - Sealing Technologies - 90, St-Etienne (FR)
Bibliographic Reference: An oral paper given at: 25th Symposium on Fusion Technology - (SOFT-25) Organised by: Max-Planck-Institut für Plasmaphysik Held at: HanseMesse Rostock (DE)
Availability: This article can be accessed online by subscribers, and can be ordered online by non-subscribers, at: http://dx.doi.org/doi:10.1016/j.fusengdes.2009.01.045
Record Number: 200910302 / Last updated on: 2009-09-22
Category: PUBLICATION
Original language: en
Available languages: en