Influence of cylindrical obstacle  on flammable gas explosion rules in offshore oil platform

  • WANG Peng-cheng ,
  • SUN Yu-qing*
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  • (Marine Engineering College, Dalian Maritime University,Dalian 116026,China)

Received date: 2015-05-12

  Revised date: 2015-06-30

  Online published: 2015-06-30

Abstract

To understand the influence of cylindrical obstacles number and blockage ratio of flammable gas explosion on the shock wave and temperature characteristics of the offshore oil platform, the model of offshore oil platform with different cylindrical obstacles was established, and the peak overpressure of shock wave and the peak temperature which caused by flammable gas explosion in 15 kinds of operating conditions were studied by using the finite element analysis method. On this basis, by using the method of curve fitting, the mathematical relation expression of peak overpressure, cylindrical obstacle numbers and blockage ratio were conducted. Results show that with the increase of cylindrical obstacle numbers and blockage ratio, the shock wave peak overpressure increases obviously, and the peak temperature increases slowly which located at 2000~2500 K.

Cite this article

WANG Peng-cheng , SUN Yu-qing* . Influence of cylindrical obstacle  on flammable gas explosion rules in offshore oil platform[J]. Journal of Dalian Maritime University, 2016 , 42(1) : 83 -89 . DOI: 10.16411/j.cnki.issn1006-7736.2016.01.015

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