A system and method for realizing stable flow of liquid metal free surface

Abstract

The invention discloses a system of realizing liquid-state-metal free-surface stable flow and a method thereof. The system comprises a flat substrate. Groove channel apparatuses are arranged on the flat substrate in an array mode. Each groove channel apparatus comprises several capillary groove channels and upper portion liquid state metal flows through the capillary groove channels. A solid wall thickness of each groove channel apparatus adapts to any positions facing a plasma component in a fusion reactor. The system and the method of the invention have advantages that a contact area of the liquid state metal and a wall surface can be increased so that an adhesive force is increased too; and a capillary groove channel structure generates an extra surface tension so that effects of wetting resistance and an electromagnetic force are greatly reduced and liquid-state-metal free-surface flow is stable; the structure can realize a static state of the liquid state metal facing the plasma component and can realize a flow state of the liquid state metal; and when the liquid state metal is in the static state, a purpose of preventing an MHD effect influence can be reached.

Description

technical field [0001] The invention relates to a system and method for realizing the stable flow of liquid metal on the free surface. Background technique [0002] The thermonuclear reactions of advanced reactors such as fusion reactors and fission reactors produce extremely high nuclear thermal power density. The internal components of the reactor, such as the first wall of the fusion reactor facing the plasma cladding and the divertor, and the fission reactor core fuel assembly need to specify the quality The flow rate of coolant flows away from the nuclear heat, cooling the internal components of the reactor. In the fusion reactor core, since the plasma-facing components (such as the first wall and the divertor) have to bear the high surface heat load of the fusion plasma and the bombardment of the high-density ion flow, the life of the plasma-facing components will be severely reduced, and solid materials cannot meet the requirements. The future fusion reactor faces th...

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Problems solved by technology

The increase in flow resistance will inevitably prevent the liquid film from forming continuously and at high speed and covering the surface of the divertor. In the environment of the super strong annular magnetic field of the fusion reactor, the plasma discharge generates a plasma current of tens of thousands of amperes, while the strong magnetic field and strong electric field The combined action of the liquid metal will cause the liquid metal to generate an electromagnetic force pointing to the plasma, thus causing the splashing phenomenon of the metal droplet, and the metal droplet will break away from the original liquid film and enter the core plasma; the splashed droplet will cause the pollution of the core plasma , at the same time, it will destroy the plasma reaction, which seriously threatens the safety and stability of the fusion reactor operation

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