Dynamic grading method for leakage risk of liquid chemical pipelines in petrochemical wharf

Abstract

The invention provides a dynamic classification method of a risk of the liquid chemical pipeline leakage of a petrochemical wharf. The dynamic classification method comprises determining the form of a leakage source; establishing a leakage model according to the determined form of the leakage source and obtaining the leakage rate of dangerous chemicals; obtaining the maximum area of a formed liquid pool according to the determined leakage rate of the dangerous chemicals; establishing a liquid pool evaporation model according to the maximum area of the formed liquid pool and obtaining the evaporation capacity of the dangerous chemicals; establishing a damage model according to the accident consequence and calculating out twelve types of accident consequence evaluation indexes; evaluating the risk of a unit according to the petrochemical wharf pipeline transportation process and obtaining four types of process risk evaluation indexes; substituting the obtained sixteen types of evaluation indexes into a DT classification model and obtaining the risk level of a dangerous chemical transportation pipeline. According to the dynamic classification method of the risk of the liquid chemical pipeline leakage of the petrochemical wharf, the accident consequence of the petrochemical wharf pipeline leakage can be simulated, the relative risk level of different transportation pipelines of the dangerous chemicals can be determined, the focus objective of petrochemical wharf safety monitoring can be determined, the accident rescue force can be arranged, and the efficiency of safety management can be improved.

Description

technical field [0001] The invention relates to the field of risk management of petrochemical docks, in particular to a method for dynamically grading the leakage risk of liquid chemical pipelines in petrochemical docks. Background technique [0002] With the continuous adjustment of the structure of the global petrochemical industry, the scale of the industry is increasingly enlarged and centralized, and more and more chemical industry zones have emerged around the construction of petrochemical docks. The petrochemical terminal is a concentrated place for the transportation, storage and loading and unloading of hazardous chemicals. Once a dangerous accident occurs, it will cause incalculable economic losses and casualties. Therefore, the management of hazardous chemicals in petrochemical docks is particularly important. [0003] Pipeline transportation is a main method for loading and unloading hazardous chemicals in petrochemical docks. In actual operation, due to the cor...

AI Technical Summary

Problems solved by technology

At present, the existing pipeline risk assessment methods mostly use the weighting method, which is only considered from the perspective of process risk, and the objectivity is not good

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