The Risk Assessment And Establishment Of Early Warning System Of LNG Vaporizing Station

With rapid economic development and improvement of living standards, natural gas will play an important role. LNG has a long international history because of its transportation and storage is very beneficial. LNG is an important part of the natural gas trade in international trade, in the past 10 years, the LNG production and the construction of LNG vaporizing station had a rapid growth. But LNG vaporizing station has potential leakage, fire and explosion hazards, the probability of occurrence of these events is relatively low, but if that were to happen, there have a disastrous Consequences, at the same time, as using of LNG popularity, the accident rate risks have increased, so this article carry out a risk assessment of LNG vaporizing station.In this paper, according to the properties of LNG, the risk of LNG itself and LNG vaporizing station have been summarized. and at the same time from LNG itself risk, LNG storage tanks and pipelines hazardous facilities, manpower and safety management Risk factors and environmental factors, we analysis of the LNG vaporizing station possible risk factors, through access to documents related LNG vaporizing station, we established the fault tree of key facilities, and analysis the fault trees,obtaining their respective minimal cut sets or the minimal path sets, an made a number of measures to prevent accidents On the basis of the fault tree, we also established LNG vaporizing station fuzzy comprehensive evaluation system, and arrive at the results fuzzy comprehensive evaluation of the gas station. A summary of LNG vaporizing station all types of hazards model: leakage of LNG and natural gas, the model of natural gas spread, fire thermal radiation model an the explosion wave model. Finally, LNG vaporizing station security early warning model has been established, including the establishment of early warning indicators of management systems, building integrated security risk warning model, designed alarm presentation system and the development of emergency rescue system.The paper completed the preliminary risk assessment of LNG vaporizing station, and build a warning system.It can provide decision-making basis for controlling risk and making risk management measures.It can enhance LNG vaporizing station of the operation and management security and help to protect the city security, promoting economic and social development.