Reactor based on full-ceramic dispersion micro-packaging fuel and silicon carbide cladding

Abstract

The embodiment of the invention provides a reactor based on full-ceramic dispersion micro-packaging fuel and a silicon carbide cladding, which aims to eliminate the risk of large-scale radioactive release caused by melting of a reactor core and realize inherent safety, and comprises a pressure vessel; the reactor core active area is arranged in the pressure container; the reactor core is arranged in the reactor core active area and is provided with a plurality of full-ceramic dispersion micro-packaging fuel element rods; the reflection area is arranged outside the reactor core active area in the pressure container; the all-metal reflecting layer is filled in the reflecting region and is used for reflecting leaked reactor core neutrons; and a rotating drum provided on the all-metal reflective layer. According to the embodiment of the invention, the reactor core is composed of the full-ceramic dispersion micro-packaging fuel element rods, the melting point is high, multiple effective barriers are provided, and the fission product containing capacity is extremely high; and reactivity control is performed through the rotary drum, so that the risk of large-scale radioactive release caused by reactor core melting is eliminated, and the inherent safety of the reactor is realized.

Description

technical field [0001] The invention relates to a reactor based on all-ceramic dispersed micro-encapsulated fuel and silicon carbide cladding. Background technique [0002] Compared with large-scale reactors, small and micro-reactors have attracted extensive attention from the global nuclear industry due to their good site adaptability, low initial investment, and better modularization and intelligence levels, which can be flexibly applied to remote land or islands. , is considered to be an important direction for future nuclear energy development. Due to its relatively good technical foundation, small water-cooled reactors are one of the small reactor technologies that are being studied by countries all over the world, and various concepts and design schemes have been proposed. The technical features of these schemes mainly include: built-in layout to realize module integration, self-stabilization and natural circulation simplification of equipment, etc., reflecting the si...

AI Technical Summary

Problems solved by technology

However, its design concept and safety mechanism did not break through the category of pressurized water reactors, and did not fundamentally achieve inherent safety.

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