针对液化天然气(Liquefied Natural Gas,LNG)工厂设备的运行安全问题,首先对设备运行安全的影响因素进行全面分析,在此基础上,对结构方程模型(Structural Equation Modeling,SEM)进行简单介绍,通过建立SEM以及假设关系,对LNG工厂设备运行安全影响因素进行全面研究,为LNG工厂制定设备运行安全措施奠定基础。研究表明:在LNG工厂设备运行的过程中,工作人员、环境因素、设备运行状况、管理因素以及外来人员等因素都会对设备运行安全产生重要的影响。其中,工作人员、环境因素、设备运行状况以及管理因素会对设备运行安全产生显著的正向影响；与其它因素相比,工作人员对设备运行安全的影响并不十分明显；对于外来人员而言,设备运行安全对其产生的影响大于外来人员对设备运行安全产生的影响。研究成果有利于完善LNG工厂设备安全评价体系,有利于LNG工厂制定相关措施保障设备的运行安全。

Aiming at the operation safety of LNG plants equipment, this research started with analyzing comprehensively the factors affecting equipment operation safety. On this basis, this research briefly introduced the SEM (Structural Equation Modeling), and conducted a comprehensive research on the factors affecting equipment operation safety in LNG plants by building up the SEM, making use of relationship assumptions. It laid the foundation for the development of equipment operation safety measures for LNG plants. Research results show that during the operation of LNG equipment, factors such as staff, environment, equipment operating status, equipment management factors, and outsiders will have an important impact on the safety of equipment operation. Among them, staff, environment, equipment operating status and equipment management have a positive and significant impact on its safety. Compared with other factors, the impact of staff is not very obvious. For outsiders in the factory, safety has a greater impact on outsiders than the outsiders impact on safety. The results of this research are conducive to improving the equipment safety evaluation system of LNG plants, and are conducive to the development of relevant measures for LNG plants to ensure the safe operation of equipment.