Research on Natural Gas Explosion Rules for Cuboid Obstacles in Offshore Oil Platform

doi:10.16182/j.issn1004731x.joss.201708012

Abstract

Abstract: Quantities and blockage ratios of equipment on the platform has a great effect on the peak overpressure and temperature. The loss caused by explosion can be reduced to the minimum through the reasonable distribution of equipment, and the finite element method has been widely used in the simulation of gas cloud explosion. Offshore oil platform models with different cuboid obstacles were established by the finite element method and cuboid obstacles were distributed in 15 different situations. Mathematical relationships between overpressure and cuboid obstacles' quantities and blockage ratios were obtained. The results show that with the increase of quantities and blockage ratios, the peak overpressure increases obviously and peak temperature increases slowly which concentrates on 2000 K to 2500 K. The research only provides references to the reasonable layout of equipment on the offshore oil platform, but also provides the certain theoretical basis for the investigation and analysis of similar accidents.

Key words: cuboid obstacle, blockage ratio, finite element method, offshore oil platform

CLC Number:

TP391.9

Wang Pengcheng, Sun Yuqing. Research on Natural Gas Explosion Rules for Cuboid Obstacles in Offshore Oil Platform[J]. Journal of System Simulation, 2017, 29(8): 1726-1735.

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