来源:中核二二 | 2022-11-09 09:35:44 |
【资料图】
11月5日4时28分,中核二二承建的海南昌江核电4号机组模块三顺利吊装完成,这也是全球首个华龙一号三层环段组合钢衬里模块成功吊装。经过起吊、变幅、行走、对中、下降,与模块二精准对接,标志着4号机组反应堆厂房内壳筒体施工进入更多层连续施工,为更高效组织施工、更好保证筒体混凝土施工质量创造了有利条件。
钢衬里模块三由三层筒壁拼装而成,内直径46.8米,总体高度14.94米,总重量约176吨,创造性采用三层钢衬里筒壁(筒壁4段、5段、6段)一次拼装、吊装,系全球首次在华龙一号堆型中应用实施,突破了传统两层筒壁钢衬里的分段模式,直接跨越了一层钢衬里施工工期,减少了高空吊装、焊接等工作量,大大提升了钢衬里施工安全质量水平。
前期施工过程中,项目管理团队积极创新模块化拼装技术、反复测算验证,在保证原设计分层要求前提下,充分利用吊车转场可用、载荷试验场地、大吊车吊装站位等现场条件,跳出两层模块组合的固有模式,创新实施三层环段组合钢衬里模块技术,优化调整附件安装时机,统筹兼顾了4号核岛钢衬里PSC支架预装的重大改进,实现了钢衬里施工的全模块化,有效确保内壳施工周期与钢衬里拼装周期相匹配,开创了业内三层钢衬里组合模块的先例。
此次节点的顺利实现,是中核二二深入贯彻落实党的二十大关于核电技术创新要求,积极践行中核集团“三位一体”战略目标和中国核建“2345”发展思路的具体体现。后续,中核二二将一如既往秉承核工业艰苦奋斗的优良作风,落实落细“六大控制七个零”高质量精细化工程项目管理标杆模式的各项举措,以科技创新赋能海南昌江“华龙一号”高质量建设,以实际成效献礼党的二十大。
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