Selection of Evacuation Destination for H2S Leakage Accident on Offshore Platforms
Based on the selection of emergency evacuation methods for hydrogen sulfide leakage accidents on offshore platforms,a diffusion evaluation model for hydrogen sulfide leakage on offshore platforms is established to predict the diffusion behavior and accumulation characteristics of leaked hydrogen sulfide.Combined with the emergency evacuation time model,the spatiotemporal development trajectory of emergency evacuation behavior and leaked hydrogen sulfide gas is analyzed,and the accumulation of hydrogen sulfide gas in compartments is considered,Study the consequences of hydrogen sulfide poisoning during the entire emergency evacuation process of operators.Research has shown that when the leakage rate is high,other safety barriers should be added to reduce the consequences of accidents;When the leakage rate is low,the evacuation location should be selected based on a comprehensive consideration of the leakage rate and the shutdown time of the cabin ventilation facilities.