Reactor structural component and refueling equipment cleaning pool for ocean nuclear power platform

Abstract

The invention relates to a reactor structural component and refueling equipment cleaning pool for an ocean nuclear power platform. The cleaning pool comprises a pool body, axial stiffeners and circumferential stiffeners are welded at the periphery of the outer surface of the pool body, a storage grillwork is formed between the adjacent axial stiffeners and circumferential stiffeners, and shieldingblocks are arranged in the storage grillwork; wherein a bottom plate is arranged at the bottom end of the pool body, a supporting seat and a guide bolt supporting seat are arranged on the upper surface of the bottom plate, a supporting ring plate is welded to the supporting seat, and a guide bolt is connected to the guide bolt supporting seat; and a high-pressure water gun is arranged in the poolbody. According to the cleaning pool, the ocean nuclear power platform can clean and decontaminate reactor structural parts and refueling equipment in the swinging marine environment, the radioactivity of the marine nuclear power platform meets the radiation protection requirement, and the internal space of the marine nuclear power platform can be used for safely storing part of refueling facilities of a refueling water jacket during normal operation of a nuclear reactor.

Description

technical field [0001] The invention relates to the cleaning and decontamination of contaminated structural components in the field of nuclear energy, in particular to a cleaning pool for reactor structural components and refueling equipment used on marine nuclear power platforms. Background technique [0002] After a certain period of operation of the reactor on the marine nuclear power platform, when the nuclear fuel cannot maintain a certain power, the refueling operation must be carried out. During the refueling process, the disassembled reactor top cover and reactor internals and other reactor structural components need to be cleaned and decontaminated. At the same time After the refueling of the nuclear reactor core is completed, the relevant refueling equipment will also produce certain radioactive pollution during the refueling process. In order to realize the cleaning and decontamination of structural components and refueling equipment during the nuclear reactor refu...

AI Technical Summary

Problems solved by technology

Land-based nuclear power plants consider cleaning operations on land, and the operating environment is static. However, under marine environmental conditions, the reactor refueling mode and the cleaning and decontamination methods of related equipment have changed. The existing cleaning devices cannot meet the needs of marine nuclear power platform reactors. Cleaning and decontamination of structural components and refueling equipment

[0004] At present, the relevant marine nuclear power installations do not consider refueling in the marine environment. They are all operated at the support base of marine nuclear power installations or refueling docks. Therefore, cleaning and decontamination of related equipment in the marine environment is not considered. The cleaning and decontamination of reactor structural components and refueling equipment is consistent with that of land-based commercial nuclear power plants. A fixed pool is set up at the wharf, and relevant cleaning and decontamination operations are carried out in the pool

[0005] Since there is currently no example of cleaning and decontamination of nuclear reactor structural components and refueling equipment under marine environmental conditions, and the existing cleaning and decontamination methods for nuclear reactor structural components and refueling equipment cannot be realized due to environmental influences and space constraints, safety accidents have occurred The risk is too high, so it is urgent to design a facility that can clean and decontaminate nuclear reactor structural components and refueling equipment in a marine environment for marine nuclear power platforms

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