Carbon fiber reinforced composite (CFC) protection limiter

Abstract

The invention discloses a carbon fiber reinforced composite (CFC) protection limiter, which mainly comprises CFC modules, an oxygen-free copper metallization layer, a chromium zirconium copper heat sink body and a stainless steel framework. The CFC modules of the limiter are arranged in an annular array along the longitudinal direction of an antenna and are arranged in an isosceles trapezoid in the transverse direction, and the CFC modules are kept at a preset interval. A stress releasing groove is machined in the surface of the heat sink body, the CFC modules and the chromium zirconium copper are sealed in a high-temperature brazing mode, and a heat load on the surface of the CFC takes away heat through an active cooling water channel. The invention provides a high-heat-load-resistant (greater than 2MW / m<2>) limiter structure and a reliable preparation method, and sputtering damage of high-energy particles to the surface of an antenna component during long-pulse high-temperature plasma operation is effectively avoided.

Description

technical field [0001] The invention relates to the application field of nuclear technology, in particular to a CFC (carbon fiber reinforced composites) protection limiter made of carbon fiber reinforced composites (withstanding high thermal load under long-pulse high-parameter plasma operation). Background technique [0002] In important nuclear fusion devices at home and abroad, the heating antenna facing the plasma is strongly affected by the bombardment of high-energy particles scattered in the plasma and electromagnetic radiation. At present, in the most advanced international thermonuclear fusion devices, the heating antenna in the non-strike area Surface heat load up to 2MW / m 2 Above, the conventional graphite protection limiter can no longer meet the technical requirements of the device. In the patent CN101807738B, there is a very low thermal conductivity of the graphite tile, and the heat transfer coefficient between the graphite and the heat sink is low, and the bo...

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Problems solved by technology

[0003] The present invention is based on meeting the needs of protecting the surface of the heating antenna from sputtering damage under long-pulse high-parameter plasma operation, and invents a carbon fiber reinforced composite material CFC protection limiter to solve the technical problem that conventional graphite limiters cannot withstand higher thermal loads. At present, the heating antenna in the fusion device provides a carbon fiber reinforced composite CFC protection limiter with excellent performance such as long life, high temperature resistance and thermal load, and less influence on the plasma.

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