Author/Authors :
Levesy، نويسنده , , B. and Baker، نويسنده , , D. and Boussier، نويسنده , , B. and Bryan، نويسنده , , S. and Cordier، نويسنده , , J.J. and Dremel، نويسنده , , M. and Dell’Orco، نويسنده , , G. and Daly، نويسنده , , E. and Doshi، نويسنده , , B. and Jeannoutot، نويسنده , , T. and Friconneau، نويسنده , , J.P. and Gliss، نويسنده , , C. and Le Barbier، نويسنده , , R. and Lachevre، نويسنده , , F. and Loughlin، نويسنده , , M. and Martin، نويسنده , , A.، نويسنده ,
Abstract :
The lower port systems are installed inside the vacuum vessel lower ports and in the adjacent port cells. The vacuum vessel ports and penetrations are allocated as follow:-
s dedicated to remote handling of the divertor cassettes, contain diagnostics racks and divertor cooling pipes.
s connecting the main vessel to the torus cryopumps, contain divertor cooling pipes, pellet and gas injection pipes and vertical stabilization coil feeders.
trations connecting torus cryopumps are connected to the vacuum vessel by branch pipes.
ic penetrations for divertor cooling lines, in-vessel viewing and glow discharge systems.
neral layout of the port systems has been revised recently to improve the cryopump (8 t weight, 1.8 m diameter and 2.5 m long) maintenance scheme with remote handling tools and integrate the in-vessel vertical stabilization coil feeders. The port allocation, the pumping ports design, and interfaces in-between ports and cryostat and in-between cryopumps and cryostat have been up-dated.
tegration inside the 18 port cells (11 m × 4 m each) has been reviewed to avoid clashes in between systems and to fix the openings in the port cell concrete walls. The new layout integrates safety and neutron-shielding requirements as well as remote handling and maintenance compatibility for the different systems.
per presents the up-dated integration of the lower port systems inside the ports and the port cells. Interfaces of the port systems with the vacuum vessel, the cryostat and the port cells are described.
