METHOD OF DRY STORAGE OF SPENT NUCLEAR FUEL AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2014 - IPC G21F5/00 

FIELD: energy industry.

SUBSTANCE: invention relates to dry storage of spent nuclear fuel from reactors LWGR-1000 and WWER-1000, and are intended for use in dry storage of spent nuclear fuel (SNF). The method for the dry storage of SNF provides for the restoration of tightness of bodies instead of decommissioning the storage cells with nonpressurised bodies. The nonpressurised bodies are removed by the refuelling machine from the storage chamber and placed on the roller bearings of the device for tilting the bodies. In the body the places of leak are determined and the defects are eliminated, then using the fuelling machine and the device for tilting the body is converted into the vertical position and place it in its previous place in the storage chamber. The refuelling machine is equipped with an additional electric winch and a removable jib. On the rope the traverse is attached in which centre and on the edges the loading grippers are mounted to install two grips on them. The device for tilting the bodies comprises a trolley with a rocking bar and a clamp and two movable roller bearings connected to a trolley and to each other with the couplers. The lodgements of the movable roller bearings are mounted on the trunnions in the bearings.

EFFECT: preservation of dry storage capacity, increase in safety during removal, transportation and tilting the bodies.

9 cl, 10 dwg