核安全级安全阀抗震应力分析与评定

Anti-seismic stress analysis and assessment of nuclear pressure safety valve

介绍了安全阀抗震分析的一般步骤。利用ANSYS软件计算了核安全级弹簧式安全阀在地震工况下的三维应力分布,根据ASME锅炉和压力容器规范进行了完整性评定。

For nuclear pressure safety valve, it is obligatory for structural integrity analysis under seismic condition. Firstly, the procedure of nuclear safety valve seismic qualification is introduced briefly. Then the three-dimensional finite element model of safety valve is built using ANSYS software. Its stress distribution and structural integrity assessment under seismic condition are analyzed according to ASME code. This work would provide reliable reference data for designing nuclear safety valve.