摘要:
The present invention relates to fuel handling comprising lifting of fuel assemblies (4) out of/into a reactor vessel (1) in a nuclear reactor, wherein the reactor vessel comprises a reactor core (5) with a plurality of fuel assemblies (4) and control rods (11) and wherein a fuel pool (3) is arranged adjacent the reactor vessel (1). According to one aspect of the invention, a group (4a) comprising a plurality of fuel assemblies (4) is lifted out of and into the reactor vessel (1), respectively, by means of a gripper (12). Thereafter, the group (4a) is transported between the reactor vessel (1) and the fuel pool (3) by means of the gripper (12).
摘要:
The present invention relates to fuel handling comprising lifting of fuel assemblies (4) and/or control rods out of/into a reactor vessel (1) in a nuclear reactor. The reactor vessel (1) comprises a reactor core (5) with a plurality of fuel assemblies (4) and control rods (11). A fuel pool (3) is arranged adjacent the reactor vessel (1). A cassette (12, 18) comprising a plurality of storage positions for fuel assemblies (4) and/or control rods (11) is arranged near the reactor core (5), whereupon fuel assemblies (4) and/or control rods (11) are lifted out of the reactor core (5) and arranged in the cassette (12, 18). The cassette (12, 18) is then transported to the spent fuel pool (3) for temporary storage.
摘要:
The present invention relates to a method and equipment (13) for lifting of fuel assemblies (4) and/or control rods out of/into a reactor vessel (1) in a shutdown nuclear reactor. The reactor vessel (1) comprises a reactor core (5) with a plurality of fuel assemblies (4) and control rods (11). The equipment (13) lifts one or more fuel assemblies (4) and/or control rods (11) out of the reactor core (5) and arranges them in a first cassette (14). The first cassette (14) is transported to a fuel pool (3) with a transport means (9) whereas a second cassette (14) is filled with fuel assemblies (4) and/or control rods (11) with the aid of the equipment (13).
摘要:
The present invention relates to a method for fuel handling comprising lifting of fuel assemblies (4) out of/into a nuclear reactor. The nuclear reactor comprises a reactor vessel (1) which in turn comprises a reactor core (5) with a plurality of fuel assemblies (4) and control rods (11) and a fuel pool (3) arranged adjacent the reactor vessel (1). According to one aspect of the invention, the whole of or parts of the reactor core (5) is or are simultaneously lifted out of and into the reactor vessel (1), respectively. The removed fuel assemblies (4) or the control rods (11) or the fuel assemblies (4) and the control rods (11) are arranged temporarily in the fuel pool (3).
摘要:
The present invention relates to a method and a device for correction of the movements of a suspension device (9a) and positioning thereof in a fluid. The suspension device (9a) is provided with a first and a second end, and the first end is suspended from a point (S). A correction device (13) is arranged at the second end of the suspension device (9a) and adapted to generate a force which provides an acceleration in the fluid such that the position of the second end of the suspension device (9a) is corrected.