An inherently safe pressurized water reactor with movable core

Abstract

The invention discloses an inherent safety pressurized water reactor with a movable and separable reactor core, and relates to the field of nuclear engineering. The inherent safety pressurized water reactor is a whole cylindrical pressurized water reactor composed of several movable parts of the same size, through a reactor core separation supporting system, all the parts are separated under the extreme accident work conditions, so that the reactor core is in a subcritical state, and after extreme accident faults are removed, all the parts are gathered, so that the reactor core can be in a critical state anew. The inherent safety pressurized water reactor can avoid the criticality accident of the reactor core when extreme accidents of outage of a whole factory, stuck rod superposition, failure of a dilution system and the like from occuring, and has a certain inherent safety.

Description

technical field [0001] The invention relates to the field of nuclear engineering, in particular to an inherently safe pressurized water reactor with movable and separated reactor cores. Background technique [0002] Pressurized water reactor (pressurized water reactor), the full name is "pressurized water moderated cooling reactor". A reactor that uses pressurized, non-boiling light water (that is, ordinary water) as the moderator and coolant. It is composed of fuel assembly, moderator (also used as coolant), control rod assembly, burnable poison assembly, neutron source assembly, core basket and pressure vessel. It is the reactor type with the largest number of applications and the largest capacity in nuclear power plants. [0003] The core of the existing pressurized water reactor plus the water reflection layer is a whole in the shape of a cylinder. Reactor criticality accidents may occur, resulting in the failure of the pressurized water reactor to shut down normally,...

AI Technical Summary

Problems solved by technology

[0003] The core of the existing pressurized water reactor plus the water reflection layer is a whole in the shape of a cylinder. A criticality accident may occur in the reactor, resulting in the failure of the PWR to shut down normally, so that the residual heat export and the containment of radionuclides cannot be achieved.

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