The design progress of neutral beam duct liner remote handling tool in ITER blanket remote handling system

IF 1.9 3区工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Fusion Engineering and Design Pub Date : 2025-05-27 DOI:10.1016/j.fusengdes.2025.115217

Tomoyuki ITO, Yuto NOGUCHI, Nobukazu TAKEDA

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Abstract

This paper presents the system design of the Neutral Beam Duct Liner (NBDL) remote handling system for the ITER experimental fusion reactor. All maintenance inside the Vacuum Vessel (VV), such as maintenance of Blanket Modules, Divertors, and NBDL panels, needs to be performed remotely since the environment inside the VV will become highly radioactive once fusion operation begins. The NBDL Remote Handling (NBDL-RH) system is a subsystem of the Blanket Remote Handling System (BRHS) and is designed to be handled by the Vehicle Manipulator (VMNP) of BRHS. One of the key design challenges of this work is to develop a configuration that enables the NBDL-RH Tool to operate inside the Neutral Beam Duct independently from the VMNP, while also achieving operational efficiency. The NBDL-RH system was configured to consists of the NBDL-RH Tool, which functions within the Neutral Beam Duct; utility subsystem such as power supply and signal transmission; in-porting and out-porting subsystem for transporting the NBDL-RH Tool, in its various design configurations, into and out of the VV by means of cask transfers; and another supporting subsystem. To this end, the NBDL-RH Tool has been conceptually designed in a modular configuration incorporating a Tool Changer. This approach reduced the number of cask transfers by approximately one-third compared to a system without a Tool Changer. Furthermore, the modular configuration minimized the amount of manual reassembly work required in the Hot Cell Facility.

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ITER包层远程处理系统中中性束导管衬垫远程处理工具的设计进展

介绍了ITER实验核聚变反应堆中性束管（NBDL）远程处理系统的系统设计。真空容器（VV）内部的所有维护，如包层模块、分流器和NBDL面板的维护，都需要远程执行，因为一旦聚变操作开始，VV内部的环境将变得高度放射性。NBDL远程搬运（NBDL- rh）系统是毯式远程搬运系统（BRHS）的一个子系统，设计用于BRHS的车辆机械手（VMNP）的搬运。这项工作的关键设计挑战之一是开发一种配置，使NBDL-RH工具能够独立于VMNP在中性波束管道内工作，同时还能提高操作效率。NBDL-RH系统由NBDL-RH工具组成，该工具在中性束管中起作用；供电、信号传输等公用分系统；输入和输出子系统，用于将各种设计配置的NBDL-RH工具通过桶转移方式送入和输出VV；还有另一个辅助子系统。为此，NBDL-RH工具在概念上采用了包含工具更换器的模块化配置。与没有更换工具的系统相比，这种方法减少了大约三分之一的桶转移次数。此外，模块化配置最大限度地减少了热单元设备所需的手动重新组装工作。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Fusion Engineering and Design 工程技术-核科学技术

CiteScore

3.50

自引率

23.50%

发文量

275

审稿时长

3.8 months

期刊介绍： The journal accepts papers about experiments (both plasma and technology), theory, models, methods, and designs in areas relating to technology, engineering, and applied science aspects of magnetic and inertial fusion energy. Specific areas of interest include: MFE and IFE design studies for experiments and reactors; fusion nuclear technologies and materials, including blankets and shields; analysis of reactor plasmas; plasma heating, fuelling, and vacuum systems; drivers, targets, and special technologies for IFE, controls and diagnostics; fuel cycle analysis and tritium reprocessing and handling; operations and remote maintenance of reactors; safety, decommissioning, and waste management; economic and environmental analysis of components and systems.