Risk evaluation method for gas pipe network

Abstract

The invention discloses a risk evaluation method for a gas pipe network, and belongs to the field of gas pipe networks. The risk evaluation method comprises the steps of dividing a target area into aplurality of sub-areas, and obtaining failure frequencies of a plurality of risk factors and failure consequences of a plurality of consequence factors of each sub-area; multiplying each failure frequency in the current sub-region by all failure consequences in the current sub-region one by one to obtain a plurality of risk values corresponding to each risk factor in each sub-region; comparing therisk values of the same risk factor of the plurality of sub-regions, and obtaining the maximum risk value of each risk factor in the target region; and determining the risk level of each risk factorin the target area according to the maximum risk value of each risk factor. The risk evaluation method provided by the invention has the advantages of simple logic relationship, simple calculation process and strong operability, can determine the relative importance of various risk factors and evaluate the risk level, realizes the risk management of the gas pipe network, and improves the safety level of the gas pipe network.

Description

technical field [0001] The invention relates to the field of gas pipeline networks, in particular to a risk assessment method for gas pipeline networks. Background technique [0002] As one of the essential infrastructures for urban and rural construction, the gas pipeline network is an important part of urban and rural energy supply. In recent years, with the continuous laying of gas pipelines, the risk of leakage of oil and gas pipelines has gradually increased, which poses a major threat to people's lives and property safety. Therefore, it is necessary to provide a risk assessment method for gas pipeline networks. [0003] The prior art provides a risk assessment method for a gas pipeline network, and the risk assessment method uses a fault tree analysis method for qualitative analysis. Among them, the fault tree analysis method belongs to a graphical deductive method, which is a logical reasoning method for fault events under certain conditions. Analyze all possible di...

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Problems solved by technology

[0005] The risk assessment method of the gas pipeline network provided by the prior art involves complex logical relationships, which is not conducive to the risk assessment of the gas pipeline network

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