摘要
针对液化天然气(LNG)液化厂安全评价系统的多层次性和复杂性,将基于熵权理论的可拓综合评价方法应用于LNG液化厂的安全评价。结合现有LNG液化厂的行业标准和规范,对LNG液化厂从设备因素、环境因素和人的因素3方面考虑,建立LNG液化厂安全评价指标体系,并在此基础上建立LNG液化厂安全综合评价的物元模型,通过定量计算其熵权系数和综合关联度,达到对LNG液化厂安全进行综合评价的目的。实例分析的计算结果明确反映了LNG液化厂的安全水平,表明基于可拓理论的LNG液化厂安全综合评价是有效的。
With respect to the multiple levels and complexity of safety assessment system for LNG liquefaction plant, comprehensive expansion assessment method based on entropy weight theory is used for safety assessment of the LNG liquefaction plant. In accordance with existing industry standards and codes for the LNG liquefaction plant and taking the equipment, environmental and human factors into account, a safety assessment indicator system for the LNG liquefaction plant is established and a matter-element model for the comprehensive safety assessment of matter-element is built to achieve quantitative calculation of entropy coefficient and comprehensive correlative degree so as to carry out comprehensive safety assessment for the LNG liquefaction plant. Case calculation results provide a safety level to the LNG liquefaction plant, and it indicates that the extension theory-based comprehensive safety assessment for the LNG liquefaction plant is valid.
出处
《油气储运》
CAS
2013年第5期480-484,共5页
Oil & Gas Storage and Transportation
关键词
LNG液化厂
可拓评价
熵权
物元
安全
LNG liquefaction plant, extension assessment, entropy weight, matter-element
safety
