HAZOP与风险矩阵结合技术在氧储存系统中的应用

Application of HAZOP and Risk Matrix Combination Technology in Oxygen Storage System

摘要: 为系统识别氧储存系统运行过程中潜在风险及其严重程度，提出了HAZOP + 风险矩阵相结合的分析方法。HAZOP是一种定性分析方法，能够有效发现工艺设计或生产过程中存在的问题，风险矩阵是一种半定量分析方法用于评定风险等级，从而指导企业根据风险等级采取针对性改进措施。研究结果表明，液氧储槽的液位过高、温度过高以及压力过高或过低是导致液氧泄漏的主要风险点。针对这些风险，本文提出了设置液位高高联锁、温度低低联锁、压力自动控制等改进措施，并确认了液氧储槽的弱顶设计在压力低时能保护储槽不发生吸瘪后果。

Abstract: To identify the potential risks and their severity during the operation of the oxygen storage system, an integrated analysis method combining HAZOP (Hazard and Operability Study) and risk matrix is proposed. HAZOP is a qualitative analysis method that can effectively identify issues in process design or production. The risk matrix is a semi-quantitative analysis method used to assess risk levels, thereby guiding enterprises to take targeted improvement measures based on the risk levels. The research results indicate that high liquid levels, high temperature, and excessively high or low pressure in the liquid oxygen storage tank are the main risk points leading to liquid oxygen leakage. In response to these risks, this paper proposes improvement measures such as high-high level interlock, low-low temperature interlock, and automatic pressure control. It also confirms that the weak roof design of the liquid oxygen storage tank can protect the tank from being sucked in when the pressure is low.