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华龙一号全球首堆反应堆压力容器冷试前关盖首战告捷
文章来源?#21512;?#32479;管理员 日期:2019年04月23日

  4月22日15时30分,随着反应堆压力容器顶盖组件于筒体组件上方就位、60颗主螺栓成功拉伸、堆内测量密封结构安装完成,华龙一号全球首堆冷试前反应堆压力容器关盖工作全部结束,标志着反应堆一回路具备进水条件,为一回路水压试验奠定了基础,保证了后续冷态功能试验的进行。

  反应堆压力容器是固定和包容反应堆核燃料、堆内构件与控制棒驱动结构等装置的重要设备,使核燃料的裂变反应可以限制在一个密封空间内进行。

  反应堆压力容器冷试前关盖是冷试前关键路径工作,?#20013;?#26102;间长、工作任务重、技术要求高。反应堆压力容器关盖工作需将下部堆内构件、上部堆内构件、顶盖组件组装在一起,与一回路的其他设备及管道共同组成高压高辐射冷却剂的压力边界,共同构成反应堆的第二道屏障。

  为保证反应堆压力容器冷试前关盖工作的顺利进行,华龙一号建设团队践行“六同”理念,提前梳理关盖工作流程,编制风险预案,不惧挑战、迎?#35759;?#19978;,?#20064;?#20919;试前关盖工作质量关,工作风险得到严密管控,为打赢堆芯组装攻坚战、推动冷试节点的实现提供最佳助力。(文 付镭 洪志辉 影 过东海 蒋泰铿)

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