【摘要】 清华大学10 MW高温气冷堆蒸汽发生器的传热管采用单头、小弯曲半径的螺旋管组件式结构,要求在正常和事故等多种运行工况下都能保证结构的受力低于一定阈值,防止因为传热管变形过大导致结构失效。本文利用ABAQUS有限元计算程序对该传热管结构在特定工况下的应力分布进行了分析对比,得到不同圈数螺旋管的应力分布规律,验证了传热管结构应力分析简化模型是有效的,可以作为下一步传热管断裂分析时确定载荷的依据。更多还原

【Abstract】 The steam generator tube of 10 MW high temperature gas cooled reactor in Tsinghua University adopts the spiral tube module structure with single-end and small bending radius,and the structure stress shall be ensured below the threshold under normal operation,accident and other operation conditions,to prevent the structure from failure caused by large deformation.This paper uses the finite element software ABAQUS to analyze the stress distribution of such tube under specific operation condition to obtain the stress distribution of spiral tubes of different cycles,to establish the simplified stress analysis model of such type tube,and prepare for the fracture analysis of vulnerable area.更多还原