Divertor supporting movable mechanisms in a TOKAMAK device

Purpose: To simplify the diverter supporting movable mechanisms and devices, improve the reliability and facilitate the maintenance. Constitution: A tank is integrally disposed at the back of divertor shieldings. Rollers for movement are disposed at the lower surface of the tank. For detaching fixing flanges from the upper shieldings to backwardly displace the divertor for the decomposing repairement thereof, a liquid charge/discharge pipe is passed through the inside of the tank to fill water thereby displace the gravitational center of the divertor toward the rollers. The divertor is lifted up and the lower surface thereof aparts from the divertor supporting lower shieldings and can be moved to a predetermined position smoothly in a floated state to facilitate the maintenance. Since the displacement for the gravitational center of the tank can be conducted by simple procedures of charging and discharging liquid to and from the tank, it is possible to apply to the restricted space and improve the reliability. (Takahashi, M.)