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加纳高浓铀微堆低浓化完成 “加纳模式”成功实现

2017-08-30 09:37:42   国际在线

8月29日傍晚,加纳微堆高浓铀燃料安全、顺利从加纳运抵中核集团中国原子能科学研究院

国际在线消息(记者 黎萌):8月29日傍晚,加纳微堆高浓铀燃料安全、顺利从加纳运抵中核集团中国原子能科学研究院(简称原子能院),标志着加纳微堆低浓化项目圆满完成,习近平总书记提出的“加纳模式”成功实现。加纳微堆是国外首座完成低浓化改造的微堆,该项工作的圆满完成兑现了中国政府的庄严承诺,展示了中国负责任核大国的国际形象,中国政府倡导的“加纳模式”也将为国际社会围绕核不扩散和核安全的精诚合作提供重要的经验。

国防科工局副局长、国家原子能机构主任王毅韧、IAEA副总干事Ms Mary Alice Hayward、加纳原子能委员会副主席Innocent Joy Kwame Aboh、美国能源部NNSA代理局长、中国外交部、公安部、环保部、海关总署、民航局、北京市环保局、加纳大使馆、美国大使馆、美国萨瓦纳国家实验室、中国核工业集团公司、中核集团中国原子能科学研究院、中核集团中国原子能工业有限公司、中核集团清原环境技术工程有限责任公司、中国民航科学技术研究院、中外运空运发展股份有限公司、俄罗斯Sosny公司、俄罗斯VDA公司、捷克UJV公司等代表参加了见证活动。

8月29日傍晚,加纳微堆高浓铀燃料安全、顺利从加纳运抵中核集团中国原子能科学研究院

微堆,是微型中子源反应堆的简称。中核集团原子能院于1984年建成我国第一座微堆。从1988年开始,先后为国内用户建造了3座商用微堆,为国际用户巴基斯坦、伊朗、加纳、叙利亚和尼日利亚建造了5座商用微堆。加纳微堆是中核集团原子能院1995年设计建成的一座高浓铀微堆。

加纳微堆低浓化改造工作受到中国政府和国际社会的高度重视。2014年荷兰海牙核安全峰会上,中国承诺愿意帮助有需要的国家开展高浓铀研究堆改造工作;2016年华盛顿核安全峰会上,习近平主席正式提出“加纳模式”,并庄严承诺中国将协助加纳完成加纳微堆低浓化改造工作。

2014年,在国际原子能机构协调下,由加纳、中国和美国参与开始实施微堆低浓化工作,中国主要负责燃料和技术工作。2015年12月,中核集团原子能院与美国阿贡实验室签订了加纳微堆低浓铀燃料设计、加工和零功率实验合同。2016年6月,加纳低浓铀燃料加工完成,同年8月完成低浓铀零功率实验。2017年6月,低浓铀燃料运抵加纳;7月,中核集团技术人员开始进行装料和调试;8月10日,加纳微堆实现满功率运行;8月29日,高浓铀燃料顺利返回。

据悉,原型微堆低浓化是在不改变堆芯尺寸情况下,将高浓铀组件换成低浓铀组件,并满足微堆应用。改造后的原型微堆可以满足原微堆的所有功能,同时固有安全性能更好,燃料使用寿命更长。

同时,通过开展微堆低浓化改造项目,形成了“加纳模式”,这是一种多国合作、技术引领、优势互补的新型国际合作模式,也为后续国外其他微堆低浓化改造提供了有力的技术支撑和宝贵经验。

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