中国产核用富集硼酸将装入“华龙一号”|性开放按摩a片免费看

  中新社深圳10月10日电 (索有为 朱丹)由总部位于深圳的中国广核集团所属苏州热工研究院有限公司(简称“苏州热工院”)牵头自主研发的核用富集硼酸,10日正式交付广东陆丰核电5号机组。

  据悉,这是继2024年11月在阳江核电3号机组、防城港核电4号机组运行期间小批量示范应用后,富集硼酸国产化的又一次重大突破。向新建“华龙一号”机组的规模化供货,标志着国产核用富集硼酸供应链已实现自主可控,中国在关键核用化学材料研制领域又迈出坚实一步。

10月10日,中国产核用富集硼酸正式交付广东陆丰核电5号机组。(中国广核集团供图)

  富集硼酸是通过同位素分离技术将硼-10丰度由天然不足20%提升到96%以上的特殊化工产品,在核电站中扮演“智能刹车”角色,主要用于吸收压水堆核电站反应堆堆芯产生的部分中子,通过化学方式补充控制堆芯的链式反应,是保障核安全不可或缺的“镇定剂”。由于其生产工艺复杂、质量标准严苛,此前中国长期依赖进口,随着核电建设规模的不断扩大,供应链安全问题日益突出。

  为攻克技术壁垒,苏州热工院自2022年起牵头开展“核电站一回路用富集硼酸国产化研发”项目,联合山东合益气体股份有限公司等化工企业开展工艺创新与产业转化。研发团队攻克了传统生产方法中工序繁、能耗高、废料多等问题,创新采用新型络合剂分离技术及全物料循环利用合成技术,通过近百次模拟实验与工艺优化,最终实现硼同位素分离效率提升20%以上,杂质含量降低超50%,产品同位素丰度控制偏差小于1%,产品质量达到国际先进水平。(完)

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