A Double Flow Liquid First Wall Cladding for Magnetic Confinement Fusion Reactor

Abstract

The invention discloses dual-layer-flow liquid first wall cladding applicable to a magnetic confinement fusion reactor. The cladding structurally comprises a vacuum chamber, liquid metal injection pipes at the top of the vacuum chamber, an outer cladding back wall adopting a spiral insulated runner structure, an inner cladding back wall and a bottom liquid metal discharge structure. In order to solve problems of the MHD (magnetohydrodynamics) effect, the thinning effect and the like encountered by a liquid first wall during application to the fusion reactor, a special structural design is adopted: for inner cladding, the inlet injection pipes inject a liquid metal downwards from the top of the vacuum chamber along the inner cladding back wall; for outer cladding, the liquid metal is injected in the circumferential direction of the vacuum chamber, is closely attached to the outer cladding back wall and flows downwards under the effect of the centrifugal force produced due to the inertia, and overwhelms a spiral insulated runner arranged on the outer cladding back wall, so that a circumferential flow in the insulated runner and a free surface flow outside the runner are formed. The liquid metal finally flows into the bottom liquid metal discharge structure and is applied to heat transfer, tritium extraction and recycling, and the problems of the MHD effect and the thinning effect can be effectively solved.

Description

technical field [0001] The invention relates to a cladding of a magnetic confinement fusion reactor, in particular to a liquid first wall cladding that utilizes liquid metal to realize tritium value-added, energy-value added, and shielding protection. Background technique [0002] As an economical, safe, reliable and clean new energy source, nuclear fusion energy is of great significance for fundamentally solving the energy shortage and reducing environmental pollution, and it also has a very good application prospect in the military. The fusion reactor is the core component for obtaining and using nuclear fusion energy. Therefore, fusion reactor technology has attracted great attention from countries all over the world. [0003] The cladding is an important internal part of a fusion reactor. Its main functions are: to maintain the tritium required for the fusion reaction of the fusion reactor core, and realize tritium self-sustainability; convert the energy of fusion part...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a new fusion reactor liquid first wall cladding to solve the key problems faced in the existing liquid first wall design scheme, which can be used for heat transfer, tritium extraction, recirculation, and can effectively reduce MHD effect, thinning effect problem

Images