Dual-cold-loop divertor structure suitable for future Tokamak fusion reactor

Abstract

The invention discloses a dual-cold-loop divertor structure suitable for a future Tokamak fusion reactor. The dual-cold-loop divertor structure comprises a box body support, wherein the inner side of the box body support is provided with an inner baffle plate, an inner striking plate, an inner backflow plate, a dome plate, an outer backflow plate, an outer striking plate and an outer baffle plate which are pipe penetrating structures and are matched with the inner side contour of the box body support in an erected manner by means of transition supports; a flow collecting cavity correspondingly communicated with one transition support is formed in the transition support; four cooling pipes are arranged in the box body support, and are respectively two water inlet pipes and two water outlet pipes; and a dual cold loop is formed by a parallel loop of the inner and outer striking plates and a parallel loop of the inner and outer baffle plates and a dome plate region. The dual-cold-loop divertor structure realizes rapid cooling of the divertor structure, improves the cooling efficiency, reduces the pressure drop along the course of a coolant in the flowing process, prolongs the service life of a first wall of the divertor, reduces the maintenance times of the divertor, and has the advantages of saving time, saving money, being stable, safe, efficient, reliable and the like.

Description

Technical field: [0001] The invention relates to the technical field of a divertor of a Tokamak fusion reactor, and mainly relates to a dual-cooling loop divertor structure suitable for a future Tokamak fusion reactor. Background technique: [0002] Magnetically confined nuclear fusion energy is considered to be the most likely way to solve the human energy crisis in the future. The tokamak nuclear fusion device is one of the most effective methods for studying magnetically confined nuclear fusion energy. As the core component of the Tokamak nuclear fusion device, the divertor has its primary function to discharge the heat energy and particle flow from the central plasma in time. At present, the most mature structure that composes the first wall of the divertor facing the plasma unit is the ITER tungsten / copper through-tube structure of the International Thermonuclear Experimental Reactor. It is composed of a tungsten block (facing plasma material) and a copper tube (intermediat...

AI Technical Summary

Problems solved by technology

However, a large number of neutrons will be produced in the fusion reaction. Under the environment of neutron irradiation, the copper element will show high activity, and the thermal and mechanical properties of copper and copper alloys will be seriously degraded.

In the case of continuous steady-state operation of the fusion reactor, the chromium-zirconium copper cooling tube is likely to be damaged first, causing the device to be shut down for maintenance

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