Nuclear reactor core

Abstract

The invention provides a nuclear reactor core. The nuclear reactor core comprises a reactor core container, a cold chamber, a hot chamber, a core reflector, and a main pump; a reactor core reaction chamber is formed by surrounding of the reactor core container; the cold chamber is arranged on the lower part of the reactor core container, is formed by the bottom and the inner wall of the reactor core container, and is used for accommodating reactor core working medium; the hole chamber is arranged above the cold chamber, and is used for providing an active zone for nuclear fission reaction, and the cross sectional area of the hot chamber is smaller than that of the cold chamber; the core reflector is arranged above the cold chamber, and the side wall of the hot chamber is formed by surrounding of the core reflector; the main pump is used for pumping the reactor core working medium into the hot chamber, so that the liquid level in the hot chamber is higher than that in the cold chamber. The nuclear reactor core is capable of increasing safety of nuclear reactors greatly; reactor operation and accident response are more reliable; and process and equipment needed in reactor trip are simplified.

Description

technical field [0001] The invention relates to the technical field of nuclear fission reactors, in particular to a nuclear reactor core. Background technique [0002] Generally speaking, most of the reactivity control methods commonly used in nuclear reactors use control rod assemblies containing absorbent materials. The working principle is to insert the core when it is necessary to reduce the reactivity of the core, so as to reduce the reactivity. The purpose of making the reactor reach a subcritical state. At the same time, in light water reactors, boron-containing solutions are commonly used to adjust or reduce reactivity as an auxiliary means of control rod assembly control. [0003] The world's nuclear energy community has considered the inherent safety and design issues of the second-generation nuclear reactors, and proposed the concept of a new generation of nuclear energy systems at the International Symposium on Fourth-generation Nuclear Reactors held in Tokyo in...

AI Technical Summary

Problems solved by technology

[0005] The reactive control methods commonly used at present all require a power source, which is not a passive safety device, and the reliability of a single device is relatively low. To improve the reliability of this system, it is necessary to improve the reliability of the equipment, control system, and power source

Images