原子能科学技术2016，Vol.50Issue(3)：516-523,8.DOI:10.7538/yzk.2016.50.03.0516
反应堆压力容器法兰面沟槽尺寸参数对其金属 O形环密封性能的影响
Effect of Groove Dimension Parameter of Flange Face on Sealing Performance of Metal O-ring for Reactor Pressure Vessel
摘要
Abstract
The analysis of Inconel 718 alloy O‐ring of reactor pressure vessel (RPV) was conducted by finite element method (FEM ) with two‐dimensional nonlinear elastoplastic model .Based on the verification with experiments ,the influences of the groove depth , groove gap on the flange ring slot on the sealing performance were investigated .The results show that the silver coating has no remarkable effect on deformation characteris‐tics of O‐ring ,so the silver coating can be ignored w hen the O‐ring is analyzed by FEM . The groove depth and groove gap are the key parameters which have important effect on the O‐ring sealing performance .For the O‐ring involved with RPV ,the optimal values of the groove depth and the groove gap are around (11 ± 0.25) mm and 0.6 mm respec‐tively .In addition ,the O‐ring has high requirements to the manufacture and installa‐tion ,and it is necessary to improve its dimensional accuracy in order to ensure its sealing performance ,especially to keep the distance uniform between the O‐ring and groove .关键词
反应堆压力容器/O形环/沟槽深度/沟槽间隙/密封性能Key words
reactor pressure vessel/O-ring/groove depth/groove gap/sealing per-formance分类
能源科技引用本文复制引用
沈明学,李文静,谢林君,励行根,魏世军,彭旭东..反应堆压力容器法兰面沟槽尺寸参数对其金属 O形环密封性能的影响[J].原子能科学技术,2016,50(3):516-523,8.基金项目
浙江省公益技术应用研究计划项目资助（2015C31120）；国家自然科学基金资助项目（51305398）；国家科技重大专项资助项目（ZB02K06）；浙江省教育厅项目资助 （）
