In order to meet the safe operation and experimental needs of the HL-3 first wall system, the first wall temperature monitoring system is designed and developed, mainly including monitoring point design, hardware design and development, and software development. The S7-300PLC is used as the main controller, and the ET200 remote module is used as an analog data input collector, which realizes the real-time temperature monitoring of the key positions of the first wall, mainly including the high-field-side, low-field-side, divertor, movable limiter and other heat load concentrated areas. The human-computer interaction interface is completed to realize the functions such as real-time data display, history curve looking over and the threshold alarm for the engineering temperature of HL-3 first wall. The system has been successfully invested in HL-3 baking and discharge experiments. The operation results since 2022 show that the system has realized dynamic monitoring of the first wall temperature status and ensures the safe and reliable operation of the HL-3 tokamak.

为了满足HL-3装置第一壁系统的安全运行和实验需求，对第一壁温度监测系统进行了设计和研制，主要包括对第一壁系统监控点位的设计、硬件设计研制和软件开发。采用S7-300PLC作为主控制器，ET200远程模块作为模拟数据输入采集器，实现了第一壁关键位置包括第一壁强场侧、弱场侧、下偏滤器、活动孔栏等热负荷集中区域的温度实时监测。同时完成了人机界面交互，实现了对HL-3装置第一壁工程温度的数据实时显示、历史曲线查看和阈值报警等功能。该系统已成功投入到HL-3装置烘烤和放电实验运行中。自2022年以来的运行结果表明，该系统实现了对第一壁温度状态的动态监控，保障了HL-3装置主机安全可靠的运行。