AP1000机组安全壳吊索吊装法最优吊耳位置研究

Research on Best Location of Lifting Lugs on AP1000 Containment Vessel Module by Cast Rigging Lifting

AP1000机组安全壳采用模块化建造,基于吊索吊装法提出将筒体由四段改为三段吊装,着重研究了安全壳模块吊装时的最优吊耳位置,对安全壳模块吊装时的吊车的负载能力、安全距离等进行了复核,验证了筒体三段吊装的可行性。本文提出的筒体三段吊装方案有利于减小吊装和安装风险,提高安全壳的安装质量;最优吊耳位置的研究对安全壳的设计改进、优化吊装方案有直接指导作用。

Containment vessel of AP1000 is designed to be built by modules. Based on the new lifting method called rigging lifting, further improvement to change the containment vessel from four rings to three rings was proposed, and the best location of lifting lugs was studied. The load ratio of the crane and the safety distance was checked. The proposal to lift the containment vessel by three rings was verified. The new rigging plan can reduce safety risk, and improve the installation quality of the containment vessel. The research of the best location of lifting lugs could be used as the guidance for the containment vessel design and lifting plan improvement.