Research on Optimization of LNG pressure control safety accessories based on fault tree analysis

2019 5th International Conference on Energy Materials and Environment Engineering

能源学;生态环境科学

Liu, Hongkai^1 ; G., Zhu ; M., Zhang ; J., Shen ; X., Zhang

School of Petrochemical and Energetic Engineering, Zhejiang Ocean University, Zhoushan

316022, China^1

U. National-Local Engineering Laboratory of Habor OilandGas Storage and Transportation Technology, Zhoushan

316022, China^2

关键词: Control measures;    Fault tree model;    LNG storage;    Minimum cut sets;    Production operations;    Structural importance;    Weak links;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/295/3/032028/pdf
DOI  :  10.1088/1755-1315/295/3/032028

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

This paper classifies more than 20 accidents according to the main factors and types of accidents from 1994 to now. Through analysis, it is found that the safety attachment of LNG pressure control is a weak link in LNG storage system. The safety attachment of LNG pressure control is analyzed from four aspects of people machine Environmental management, and the fault tree model is established. After calculation, the minimum cut set and structural importance of the safety attachment of LNG pressure control are obtained. Based on the fault tree analysis results of LNG pressure control safety accessories and the statistical results of 20 accidents, control measures and suggestions are put forward from the peripheral layout, electrical, equipment, installation, production operation, daily maintenance of LNG pressure control safety accessories, in order to prevent and reduce accidents caused by LNG pressure control safety accessories.