Autonomous refueling system for underwater transfer mode of ocean nuclear power platform

Abstract

The invention relates to an autonomous refueling system for an underwater transfer mode of an ocean nuclear power platform. The autonomous refueling system comprises a nuclear fuel loading and unloading cabin, a spent fuel storage cabin and a containment. The spent fuel storage cabin and the containment are positioned below the nuclear fuel loading and unloading cabin; hoisting openings are respectively formed between the spent fuel storage cabin and the nuclear fuel loading and unloading cabin and between the containment and the nuclear fuel loading and unloading cabin; the nuclear fuel loading and unloading cabin is internally provided with a transfer crane new fuel storage room, a special shielding facility for storing and a reactor top structure storage box; a reactor is arranged in the containment, a refueling pool is arranged above the reactor, and a fuel loading and unloading machine is arranged above the refueling pool; a spent fuel loading and unloading machine and a spent fuel storage water tank are arranged in the spent fuel storage cabin; the spent fuel storage cabin is communicated with the bottom of the containment through a transfer channel, and a transfer trolley is arranged in the transfer channel. According to the system, autonomous refueling of the ocean nuclear power platform can be achieved, the use efficiency of a nuclear power device is improved, and the safety and operation efficiency of spent fuel assembly transfer in the refueling process are improved.

Description

technical field [0001] The invention relates to the loading and unloading of offshore floating reactor reactors, in particular to an autonomous refueling system of an underwater transfer mode for marine nuclear power platforms, and belongs to the technical field of marine nuclear energy. Background technique [0002] The marine nuclear power platform is a welded steel ship-type floating platform equipped with nuclear power devices. It is moored in the designated operating sea area for a long time, and can provide electric energy and fresh water according to user needs. Its reactors need to replace nuclear fuel assemblies after a cycle of operation. In order to ensure the continuous energy supply of users and improve the load factor of nuclear power plants and the economy of marine nuclear power platforms, it is necessary to complete the refueling in the shortest possible time after shutdown, and carry out independent refueling operations at sea without the help of external f...

AI Technical Summary

Problems solved by technology

Existing nuclear power ship technology spends a lot of time in the process of refueling to and from the operating sea area and the process of entering and leaving the dock. The use efficiency of nuclear power devices is low and the economy is poor, so it is not suitable for marine nuclear power platforms

The container refueling method generally adopted by nuclear-powered ships is less safe in terms of decay heat export, and the transfer efficiency of spent fuel is lower, which is not conducive to improving the safety and economy of marine nuclear power platforms

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