Semi-quantitative risk analysis method for gas pipeline industry based on risk matrix

Abstract

A semi-quantitative risk analysis method for the gas pipeline industry based on a risk matrix includes the following steps: (1) determining accident probability grades of the risk matrix; (2) determining seriousness grades for personal loss consequences of accidents; (3) determining seriousness grades for environmental loss consequences of the accidents; (4) determining seriousness grades for property loss consequences of the accidents; (5) determining seriousness grades for reputation effect consequences of the accidents; (6) determining accident consequence seriousness grades of the risk matrix; (7) determining accident scenario risk grades; (8) achieving corresponding functions of the risk matrix through relevant software. The semi-quantitative risk analysis method provided by the invention includes five sub-modules: an information acquisition and input module, an accident probability module, an accident consequence seriousness module, a risk grade judging module, and a risk result output module; each sub-module is provided with specific and detailed computation and assessment methods, so that accident scenario risks can be specifically and strictly defined.

Description

technical field [0001] The invention relates to a risk matrix-based semi-quantitative risk analysis method, which is mainly used for risk analysis and evaluation of industrial activities in the oil system gas pipeline industry. Background technique [0002] The petrochemical industry is a high-risk industry, prone to sudden accidents, and often brings serious accident consequences. The urban gas pipeline system is one of the important infrastructures of the city. Due to the influence of various factors, the safety status of the pipeline gradually deteriorates, which may easily cause gas leakage and cause serious accidents such as fire, explosion, and poisoning. Therefore, how to effectively assess the risks in the process of pipeline gas industry activities has become the focus of research by enterprise managers and safety workers. As a common risk analysis method, risk matrix is ​​used more and more frequently in safety management system. [0003] According to the standar...

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Problems solved by technology

[0008] The "HSE Risk Matrix Standard" also made certain explanations on the classification of the possibility of accidents and the severity of accident consequences, but the content of the regulations is relatively simple, especially for the classification of accident consequences that enterprises and institutions are concerned about.

This standard divides severity levels from four aspects: personal injury, property loss, environmental impact and reputation impact, but the basis for each level division is vague, which is of little reference value for enterprises to judge the consequences of accidents, and further improvement is needed

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