Safe multifunctional fast neutron zero power device capable of being coupled with neutron source

Abstract

The invention discloses a safe multifunctional fast neutron zero power device capable of being coupled with a neutron source, which can implement corresponding component functions by adding corresponding materials or structures into shells of a unified specification of standard components so as to ensure the flexibility of disassembling and assembling of core structures and facilitate the implementation of a better safety performance. Meanwhile, a reactive control system of the device adopts two sets of shutdown systems which are independent and have different principles, a control rod drive mechanism for experiments is arranged alone additionally, the control rod drive mechanism for experiments is also provided with a safety rod shutdown system for verification, but the device carries out shutdown protection without relying on the system, and the layout and installation of the control rod drive mechanism for experiments have flexibility, so that the device has a function of simulating the actual layouts of various cores, and has a better security performance; and in addition, the reactive control system also comprises a redundant safety protection measure, so that the device has a better inherent safety performance while ensuring the flexibility of simulated layouts of cores so as to ensure multifunctionality.

Description

technical field [0001] The invention relates to the technical field of nuclear engineering, in particular to a safe multifunctional fast neutron zero power device that can be coupled with a neutron source. Background technique [0002] The present invention mainly proposes a safe and multi-functional fast neutron zero-power device design scheme that can be coupled with a neutron source. Under the requirements of simulating the layout of the core, realize the coupling and integration of the device body, the reactivity control system, the core structure, and the neutron source. [0003] A device composed of sufficiently fissile nuclear material and other materials that can maintain a controllable chain reaction and operate at a very low power level is also called a zero-power experimental device. It is mainly used in the field of nuclear reactor engineering to carry out research such as verifying physical calculation programs and engineering simulation verification experiment...

AI Technical Summary

Problems solved by technology

There is no diverse safety shutdown system, and at the same time, the 4 to 8 safety rods and the driving mechanism only serve the function of shutdown, and the actual number and arrangement of control rods in the experimental simulation core cannot be realized

[0006] The side and bottom of the VENUS-F device are fixed lead reflective layers. At the same time, there are 6 sets of safety rods and driving mechanisms with fuel followers, and 2 sets of control rods and driving mechanisms. There is no other independent and different principles of shutdown. At the same time, it is not possible to simulate the physical and engineering verification tests of the actual control rod number and layout of the core, and the position of these safety rods is fixed, and the limitations of their layout and fixed side reflectors and bottom reflectors limit the entire The flexibility of core layout and detector layout, while the safety of the device itself is not good

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