Plasma facing components of EAST
Plasma facing components of EAST
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DOI：
10.1016/j.fusengdes.2010.09.020
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发表时间：
2010-12
影响因子：
1.7
通讯作者：
Yuntao Song;X. Peng;Hai Xie;X. Liu;L. Bao;Zibo Zhou;Lei Cao;Xu Tiejun;X. Ji;Y. Peng;N. Zhu;Z. Peng;Jiefeng Wu;Songke Wang;X. M. Wang;Jiansheng Hu;Xie Chunyi;J. Chen;G. Luo;D. Yao;D. Gao;X. Gong;P. Fu;J. Li
中科院分区：
文献类型：
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作者：
Yuntao Song;X. Peng;Hai Xie;X. Liu;L. Bao;Zibo Zhou;Lei Cao;Xu Tiejun;X. Ji;Y. Peng;N. Zhu;Z. Peng;Jiefeng Wu;Songke Wang;X. M. Wang;Jiansheng Hu;Xie Chunyi;J. Chen;G. Luo;D. Yao;D. Gao;X. Gong;P. Fu;J. Li
EAST面向等离子体的组件（PFC）具有保护真空容器、加热系统和诊断组件免受等离子体粒子和热负载的功能，并且还具有处理这些粒子和热负载的功能。PFC被设计成上下对称，以适应双零和单零等离子体配置。考虑到经济因素，所有PFC都使用石墨瓦作为贴在铜合金散热器上的面向等离子体的表面。在此结构设计的基础上，进行了详细的结构和热分析。开发了一种特殊的深孔钻削技术，直接在热沉上钻削冷却通道，以实现高效散热。在不锈钢支架和散热器之间使用了干润滑材料，以吸收热膨胀。分析结果表明，目前的PFC需要改进，为下一阶段的稳态运行。PFC与容器内线圈、低温泵和诊断组件一起安装在真空容器中。完成了设计、分析、制造和装配。如所示，所有容器内组件均成功制造和组装，符合等离子体操作的设计要求。
EAST plasma facing components (PFCs) have the function of protecting the vacuum vessel, heating systems and diagnostic components from the plasma particles and heat loads, and also additional to this particles and heat loads handling. The PFCs are designed up–down symmetry to accommodate with both double null and single null plasma configuration. All PFCs use graphite tile for plasma facing surfaces affixed to copper alloy heat sink considering economical factor. Based on this structural design, detailed structural and thermal analysis had been carried out. A special deep hole drilling technology was developed to drill cooling channels directly on heat sink for high efficient heat removal. A dry lubricate material is used between stainless steel support and heat sink for the purpose of absorption of thermal expansion. And analysis results show that the present PFCs need to be improved for the next stage of steady state operation. The PFCs are installed in the vacuum vessel together with in-vessel coils, cryopump and diagnostic components. The design, analysis, manufacture and assembly have been finished. As indicated, all the in-vessel components were fabricated and assembled successfully and meet the design requirement for the plasma operation.