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

图8 10 MPa下外部腐蚀缺陷处的氢扩散过程

Fig.8 Hydrogen diffusion process at external corrosion defect at 10 MPa (Color legend: hydrogen concentration, mol/m3): (a) 1 × 105 s, (b) 5 × 105 s, (c) 1 × 106 s, (d) 1.5 × 106 s, (e) 2 × 106 s, (f) 2.5 × 106 s