establishment of nuclear beschickungsmaschinen

摘要

1,059,822. Fuelling reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. March 25, 1964 [April 11, 1963], No. 14541/63. Heading G6C. A gas pressurizing facility for a fuelling machine 2 as disclosed in Specification 897,454 comprises a duct 8a extending downwardly from the reactor charge face 3 and with which the telescopic nose-piece 6 of the machine may be connected. The duct 8a has a valve 20 and is connected to the reactor coolant circuit through a gas pressurizing and depressurizing unit 9. The unit 9 comprises a pressure gauge 10, filter 11, compressor 12, oiltrap 13, a compressor bypass line 14 with a flow restrictor 15, stopvalves 16, 17, 18 and a non-return valve 19. There is also a purge line 50 with a branch 52 connected to a low-pressure exhaust, a branch 53 connected to a gas source at 300 p.s.i.g., a branch 54 connected to a gas source at 2 p.s.i.g., a branch 55 forming an atmospheric air inlet, and a vacuum pump 56 with isolation valve 51 and non-return valve 57. The branches 52 .. 55 are controlled by valves 58 ... 61. The duct Sa is one of three adjacent ducts extending downwards to a fuel element storage facility disposed outside the reactor containment as disclosed in Specification 866,541; only the duct 8a, however, is connected to the unit 9. The transfer of a fuel element stringer 22 between the machine 2 and the storage facility is described in detail in the Specification and involves the operation of the valves to obtain the desired gas conditions within the machine 2.