核电厂堆内构件主吊具的结构分析和优化

The structure analysis and design improvement on the reactor internal rig of nuclear power plant

反应堆堆内构件主吊具是中国自主化三代核电堆型"华龙一号"的关键设备,为了掌握关键技术、拥有自主知识产权和实现自主供货,自主研发了"华龙一号"堆内构件主吊具。通过有限元方法对堆内构件主吊具进行了弹塑性应力分析和不断的改进优化,并将分析结果与试验验证结果进行对比分析,可知两者在整体上有较好的一致性。借助有限元分析手段有效地缩短了研发周期,提高了设计质量,降低了研发成本,为今后新产品的研发设计提供了一种实用的技术手段。

Reactor internal rig is an important component of ACP1000 which is a third generation NPP newly-developed in China, independent research has been done in order to have the key technology and intellectual property rights, realize domestic autonomous supply. Finite element analysis on elastic-plastic deformation of the preliminary rig structure is performed in the process of continuous optimization design, and the result is compared with the prototype test. The calculated data are in good agreement with the experimental results. The design method is help to shorten research cycle, improve design quality and reduce research costs. This analysis and design improvement can be a useful referenced for the development of other new products in NNPs.