Auxiliary lifting device of frameworks in spent fuel pool of 1000 MW nuclear power plant

Abstract

The invention discloses an auxiliary lifting device of frameworks in a spent fuel pool of a 1000 MW nuclear power plant. The device comprises a long rod body consisting of more than two connecting rods, connecting shafts for connecting the adjacent connecting rods, first through holes are formed in the radial directions of the connecting rods, metal wires connected with the connecting shafts, pinsconnected with the metal wires, and mounting fixed pieces arranged on the connecting rods; and second through holes for enabling the pins to penetrate through are formed in the ends, far from the metal wires, of the connecting shafts. The metal wires are mounted on the connecting rods by the mounting fixed pieces arranged on the connecting rods; the two ends of the metal wires are connected withthe connecting shafts and the pins; and in the disassembly process of the long rod body, the pins easy to fall are connected with the metal wires, and the metal wires are mounted on the mounting fixedpieces, so that the pins cannot fall into the spent fuel pool, the connection of the auxiliary lifting device of the frameworks in the spent fuel pool of the 1000 MW nuclear power plant can be met, and no part can fall into the spent fuel pool in the disassembly process.

Description

technical field [0001] The invention relates to the technical field of nuclear auxiliary cooling water for a mega-kilowatt nuclear power plant, in particular to an auxiliary hoisting device for a grid in a spent fuel pool of a mega-kilowatt nuclear power plant. Background technique [0002] Spent fuel is radiation-irradiated, used nuclear fuel produced by nuclear reactors in nuclear power plants. The nuclear fuel after the nuclear reactor reaction contains a large amount of radioactive elements, so it has a large amount of radioactivity. If it is not handled properly, it will seriously affect the environment and the health of people who come into contact with them. Therefore, the spent fuel after the nuclear reactor reaction of the nuclear power plant needs to be stored in the spent fuel pool for decades until its radioactivity is reduced enough to allow subsequent reprocessing of the spent fuel. With the increasing number of domestic nuclear power plants and the continuous...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide an auxiliary hoisting device for the grid in the spent fuel pool of a million-kilowatt nuclear power plant, aiming at solving the problems of the connection and the problems of the auxiliary hoisting device for the grid in the spent fuel pool of a million-kilowatt nuclear power plant in the prior art. There is a problem of parts falling to the bottom of the pool during the disassembly process

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