中广核广东陆丰核电6号机组完成穹顶吊装|亚洲 精品 综合 精品 自拍
中新社广东汕尾7月14日电 (索有为 朱丹)中国广核集团(下称“中广核”)广东陆丰核电6号机组穹顶14日成功吊装就位，标志着这台“华龙一号”核电机组反应堆厂房成功封顶，工程建设正式由土建施工阶段全面转入设备安装阶段。
核电站穹顶是反应堆厂房的关键安全屏障，对保证其结构完整性和密封性至关重要。陆丰核电6号机组穹顶整体呈双曲面壳体结构，由钢板、角钢龙骨、栓钉及内部构件组成，总重量达275.1吨，直径45米。该穹顶在钢结构集约化基地完成生产预制后，分块板运抵现场进行整体拼装。
由于穹顶体积庞大且沉重，吊装时需要克服应力导致的变形、风力导致的偏摆，并在60米左右的高空，将穹顶与钢制安全壳筒体精准对接，精度偏差需控制在毫米级。
中广核广东陆丰核电项目规划建设6台百万千瓦级核电机组，目前已核准4台机组。其中，5号机组已进入设备安装高峰期，反应堆压力容器、蒸汽发生器等主设备已就位，主管道焊接完成；1号机组于2025年2月24日主体工程正式开工，项目2号机组正按计划开展开工前各项准备工作。(完)
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