Defect Assessment of 3000 M3 Sphere Storage Tank for Propylene

2018 3rd International Conference on Insulating Materials, Material Application and Electrical Engineering

材料科学;无线电电子学;电工学

Cai, Gangyi^1,3 ; Xiang, Zhi^1,3 ; Chen, Zhang^1,3 ; Li, Yuebing^2 ; Ye, Yufeng^1,3

Zhejiang Provincial Special Equipment Inspection and Research Institute, Hangzhou, China^1

Institute of Process Equipment and Control Engineering, Zhejiang University of Technology, Hangzhou, China^2

Key Laboratory of Special Equipment Safety Testing Technology of Zhejiang Province, Hangzhou, China^3

关键词: Defect assessment;    Domestic standards;    Fitness-for-service assessment;    Internal surfaces;    International standards;    Regular inspections;    Safety margin;    Surface cracks;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/452/2/022139/pdf
DOI  :  10.1088/1757-899X/452/2/022139

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

During the regular inspection of 3000 m3 sphere storage tank for propylene, 15 defects are detected, including 11 internal surface cracks and 4 embed cracks. One of the surface cracks can up to 80mm in length direction. For these defects, the integrity of sphere storage tank with defects is evaluated according to GB/T 19624-2004. To show the difference between the domestic standard and international standards, API 579 is also adopted to perform the Fitness-for-Service assessment. The safety margin is discussed.