Nuclear reactor core

Abstract

The invention discloses a nuclear reactor core, which includes fuel rods, control rods and a module installation device. The module installation device can realize modular assembly and disassembly ofthe multiple fuel rods, control rods and a nuclear reactor. The module installation device includes: an accommodating structure for accommodating the fuel rods and control rods; a pedestal, which is located at the bottom of the accommodating structure and is connected to the accommodating structure, and on which the bottom ends of the fuel rods and control rods are connected; and a top cap, whichis located at the top of the accommodating structure, is connected to the accommodating structure and can be connected to a container of the nuclear reactor, and on which the top ends of the fuel rodsand control rods are connected. According to the nuclear reactor core provided by the invention, one installation operation of the module installation device can realize installation of the multiplefuel rods and control rods, the charging speed is significantly increased, the assembly and disassembly efficiency is enhanced, and by using the top cap, pedestal and accommodating structure with smaller volume, the structure of the reactor core is simplified.

Description

Technical field [0001] The invention relates to the technical field of nuclear reactors, in particular to a core of a nuclear reactor. Background technique [0002] Small modular nuclear reactors have gradually attracted wide attention from various countries due to their advantages of high safety performance, flexible operation, strong adaptability, and wide application. The small lead-based reactor in the small modular nuclear reactor is an ultra-small, mobile, advanced nuclear energy system with inherent safety and using liquid lead-based alloy as a coolant. Compared with traditional large-scale nuclear reactors, small-scale lead-based reactors adopt modular design and construction, which can be modularly assembled in the construction plant, greatly shortening the construction period and effectively reducing construction costs. [0003] Small lead-based reactors require the size of the reactor to be as small as possible during the construction. However, the core of the current s...

AI Technical Summary

Problems solved by technology

[0003] Small lead-based reactors require that the volume of the reactor be as small as possible during construction. However, the cores of current small lead-based reactors are composed of fuel assemblies, reactor internals, and core shrouds. The core of this structure Not only the structure is relatively complex and the volume is large, but also the operation of loading, unloading and refueling in the reactor is relatively cumbersome, which affects the working effect of small lead-based reactors

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