Patent SK-288462-B6 (SK)
Title: Transporting and handling triple cover double valve packaging system to store spent nuclear fuel
Inventor: BARTOS PAVEL
IPC: G21F5/005
Filed: 2013-01-25
Abstract: The invention relates to transport and handling three shell, two-valve packaging system for storing spent nuclear fuel, which consists of an inner sleeve (3) fitted on one of its front-mounting side firmly welded flat bottom (4) of the housing (3) in which is stored shape ins (5) consisting of profile pipes (6), wherein the second face-mounting side of the inner shell (3) fixedly connected to the primary welded lid (9) or alternatively linked to the primary screwed lid (8) provided with tapered pipe threads ( 10), wherein in the front of the tapered pipe threads (10) is conical slope (11), wherein also the primary screwed cap (8) on the outside of the other side provided with, first, a shaped recess (12) and that the other gripping members, such as a primary shaped handling area (13) and the primary screwed lid (8) it is further provided with a primary filling leak tight valve (14) designed to test the leak tightness and the filling of the inner tube (3) with an inert gas (15) from the outside of the welded primary sealing cover ( 16), wherein the inner shell (3) is inserted coaxially into the outer casing (17) forming the seamless pipe or casing, wherein the outer jacket (17) is then on one of its front side provided with welded in a flat bottom (18) of the housing ( 17), on the other the face of the secondary shaped lid (19) which has on its inner face shape adapted to the weld and the outer end face is provided with a secondary shape handling area (13b) with a groove or other gripping members, its closing and welding the handling robot effectors, also this secondary molded cap (19) fitted on the same side of built-in secondary filling leak tight valve (14b), serving to test the leak tightness of the special gas, and filling the inner tube (3) with an inert gas (15) from the outside, side to the welded area of a secondary sealing lid (16b), wherein the outer shell (17) together with the inserted inner shell (3) is inserted into the outer overwrap (21) formed by the formed seamless pipe or sleeve, the outer overwrap (21) of cylindrical shape has a from its one end face fitted with the welded base (22) the wrapper (21), which at its one inner face becomes a shape adapted for the welding, on its outer end face of the shape-handling area (20) of the base of the outer overwrap (21) to the robotic handling the lid and the outer overwrap (21) with the gripping members to handle the whole of a storage over pack, particularly as robotic effectors, the outer overwrap (21) is on its other face side provided with welded in tertiary form-fitting lid (23) which has on its the inner face shape adapted to the weld and on its outside is provided with a manipulation shaped studs (24), wherein the primary and secondary filling leak-free valve (14a) and (14b) fitted to the primary screwed caps (8), an alternative primary welded lid (9) a further secondary shaped lid (19), they are formed in the same structure of the cone (25) axially compressing the spring (26) into the seat (27) of the central primary and secondary shape handling area (13a, 13b), the outer overwrap (21 ) are on their external surfaces provided with anti-corrosion layer (29), wherein the inner surface (30) of the outer overwrap (21), outer surface (31) of the outer shell (17), inner surface (32) of the outer shell (17) and the outer face (33) outer shell (17) are equipped with heat plug.