| With the development of the offshore oil industry,exploration and development of offshore oil and gas resources gradually turn to deep water area.In order to control Exploitation costs,reducing operation risk,FPSO(Floating Production Storage and Offloading Units)is becoming an important part of the offshore oil industry as it’s superior economics,serviceability and resistance to harsh environmental risk.But because of the compact structure,complex system,and high work load,workers always expose to huge potential fire and explosion risk.Especially in the cabin,once oil and gas leak occurs,a huge number of oil and gas accumulates in the bottom of the cabin,which can easily lead to serious fire or explosion,causing immeasurable damage to the FPSO and workers.For the high fire risk of FPSO,this paper selectes pump room as the research object,carried out systematic fire risk analysis and fire simulation based on performance-based design theory。According to the special attributes of spatial structure,system designment and equipment arrangement of FPSO pump room,fuzzy comprehensive evaluation has been done in aspects of heat source,leak source,ventilation and fire management.The typical characteristics and risk of fire for the pump room are determined.An analysis model for fire simulation is established considering the pump room fire control system,fire and gas control system,layout of pump room,physical feature and fire emergency management measures.With the simulation analysis of fire protection system used or not,we evaluate the effect of fire protection system in improving escape environment,reducing heat release rate and reducing environment temperature.According to the results of evaluation,we find defects in design,maintenance and usage of the fire protection system and put forward improvement measures.This research can provide theoretical support and technical guidance to improve the fire risk control and management for FPSO. |
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