Liquid lithium membrane flow structure covering bottom wall completely

Abstract

The invention belongs to the technical field of fluid flow control, and specifically relates to a liquid lithium membrane flow structure covering a bottom wall completely. The structure comprises a bottom wall, a central bottom wall, a pipe, and a side channel wall. The whole structure is a groove, and the region between the central bottom wall and the bottom wall is provided with the pipe. The central bottom wall is provided with a plurality of circular through holes, so that liquid lithium flows to a space above the central bottom wall from the circular through holes. The method can solve aproblem that the poor wettability of liquid and a solid bottom wall causes a condition that liquid metal cannot completely cover the bottom wall. The membrane flow structure is wider in application range, and can form large-area membrane flow completely covering the solid bottom wall while adapting to the configuration of a liquid divertor.

Description

technical field [0001] The invention belongs to the technical field of fluid flow control, and in particular relates to a liquid lithium film flow structure completely covering the bottom wall. Background technique [0002] At present, controlled nuclear fusion still faces the huge technical challenge of developing suitable plasma-facing materials. So far, researchers have not found a solid material that can withstand the extremely high heat flow impact of the fusion reactor and the very large neutron radiation damage. . Therefore, flowing liquid metal lithium is proposed as the plasma-facing material of the fusion reactor, and used as the surface of the high thermal load components (especially the divertor) of the fusion reactor to withstand extremely high heat flow impact and reduce neutron radiation damage. Existing research results show that solid high thermal load materials can only withstand up to 10MW / m under steady state conditions 2 The surface heat flow impact, w...

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