Study on Accident Consequence of Skid Mounted Natural Gas Treatment Plant Based on Domino

doi:10.11885/j.issn.1674-5086.2020.05.12.07

Abstract

Abstract: In view of the serious accident consequences caused by the tightness of skid mounted equipment, starting from skid mounted treatment plant, first calculate the failure probability of each skid mounted equipment in the treatment plant according to RBI formula, take the equipment with the largest failure probability as the failure equipment for explosion simulation, then calculate the failure probability of surrounding equipment according to probit method, and get the initial event Therefore, the consequence of the accident (one accident); the second explosion simulation is carried out for the equipment with failure probability of 100%, and then the failure probability of the surrounding equipment is calculated according to the improved probit method to get the consequence of the second accident; finally, the consequence severity of the first accident and the second accident is compared. The results show that the maximum impact radius of the primary accident is 49.5 m, the maximum impact radius of the secondary accident is expanded to 161.2 m, and there are three possibilities of accidents; the probability of personal injury in the operation area after the primary accident and the secondary accident of the equipment is 100%, and the relevant departments should strengthen the protection of the operation area.

Key words: skid mounted, consequence study, domino, failure probability, equipment failure, primary accident, secondary accident

CLC Number:

X937

LIU Mingming, ZHANG Hongjie, ZHU Lin, LI Wenqian, ZHENG Zilong. Study on Accident Consequence of Skid Mounted Natural Gas Treatment Plant Based on Domino[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2021, 43(6): 191-200.

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