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【大国工匠】第一代核燃料师:修复核燃料棒仅靠手势指挥

2017-04-30 17:51:04   央视网

央视网消息:“大国智造”,对新时代的劳动者提出了更高要求,那就是追求极致、精益求精的工匠精神。制造业强国需要更多大国工匠在更高的层面自主创新。

被称作“国家名片”的核电站,对于很多人来说,是一个陌生而又神秘的地方,有这么一个人,他和核燃料打了25年交道,全国一半以上核电机组的核燃料都由他来操作,他的团队是国内唯一能对破损核燃料进行水下修复的。今天的大国工匠我们来认识我国第一代核燃料师乔素凯。

中广核核燃料师乔素凯:“我叫乔素凯,1992年技校毕业后来到了大亚湾核电站,一直与核燃料打交道,到现在整整25年了。”

核燃料水池

乔素凯的岗位在核电站的最深处,那是一个有如大海般的蔚蓝水池,美丽的水面下,就是令人闻之色变的核燃料, 每十八个月,核电站要进行一次大修,这是核电站最重要的时间,三分之一的核燃料要被置换,同时要对破损的核燃料组件进行修复。

中广核核燃料师乔素凯:“修复是最难的,风险最大的,就是有生命危险。”

今天,乔素凯的工作是修复一根破损的核燃料棒,这是一项复杂又充满危险的任务,目前,在全国能够完成这个任务的只有乔素凯所带领的团队。

乔素凯戴上面罩准备修复核燃料棒

中广核核燃料师乔素凯:“运行过的燃料棒里边有将近200帕的压力,这个气压是非常大的。一旦破损整个放射性气体就会迅速扩散到这个厂房里边,所以我们为了防止整个厂房不受放射性沾污影响,所以就把全部通风都停了,要戴面罩不能说话。”

由于核燃料棒有很强的放射性,因此必须放置在含有硼酸的水池中来屏蔽辐射,这也就意味着修复的工作要在水下完成,修复的第一步就需要打开组件的管座,这个过程需要在水下拆除24颗螺钉。不同于我们生活中常见的拧螺钉,乔素凯需要用一根四米的长杆,伸到水下三米进行操作,这是一个对精度有严格要求的动作。

中广核核燃料师乔素凯:“高度差一毫米它这个螺钉是拧不进去的,我们的长杆有四米长,扭矩传到水下,完全靠人的经验和手感。稍有不慎螺钉就损坏了。”

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