含腐蚀缺陷氢气管道局部氢浓度有限元模拟分析

崔德春, 熊亮, 于邦廷, 吴浩志, 董绍华, 陈林

Finite Element Analysis of Local Hydrogen Concentration in Hydrogen Pipeline With Corrosion Defects

CUI Dechun, XIONG Liang, YU Bangting, WU Haozhi, DONG Shaohua, CHEN Lin

表3 不同缺陷深度处的最大氢浓度

Table 3 The maximum hydrogen concentrations at different defect depths

Type Defect depth / mm Cmax / mol·m-3 Location coordinates x / mm y / mm z / mm Internal corrosion defect 1.91 10.30 0 -248.46 501.05 2.86 10.40 0 -249.24 503.21 3.81 10.50 0 -250.27 500.94 4.76 10.57 0 -250.90 500.82 External corrosion defect 1.91 10.62 0 -250.75 500.00 2.86 10.94 0 -249.32 501.00 3.81 11.21 0 -248.94 500.00 4.76 11.53 0 -248.18 500.00