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到位!华龙一号全球首堆大件设备吊装完毕
文章来源:中核集团 日期:2019年04月30日

4月28日,华龙一号全球首堆示范工程——中核集团福清核电5号机组第三台二次侧非能动余热排出系统热交换器引入外挂水箱,热交换器吊装工作全部完成,标志华龙一号全球首堆实体封闭前大件设备吊装工作“收官”。

能动与非能动系统相结合的创新设计,是华龙一号具备国?#39318;?#39640;安全性的体现之一。非能动系统主要包括安全壳热量导出系统、堆腔注水冷却系统、二次侧非能动余热排出系统等。

二次侧非能动余热排出系统旨在发生辅助给水系统失效工况下,采用非能动措施导出堆芯余?#29123;胺从?#22534;冷却?#26009;?#32479;各设备的储热,可在72小时内将?#20174;?#22534;维持在安全的停堆状态,保证?#20174;?#22534;的安全。

据了解,该热交换器共3台,分别分布在3个非能动热量导出水池地坑区域。此前,第一、第二台热交换器分别于4月17日、4月25日完成吊装。(文/陶昊 影/过东海)

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