Town Gas Accident Risk Assessment

With the wide use and development of the town gas, the fire and explosion accidents of town gas have increased a lot correspondingly. The system safety analysis and risk assessment of town gas is helpfUl not only in preventing these accidents from happening and reducing the loss of the accidents, but also in realizing the aim of hazard reduction of the city. Based on the comprehensive utilization of many references and deep investigations and researches, the fault tree analysis is used in gas fire and explosion, the safety check list is made, the suggestions on improving the safe level of town gas are given; the models of the risk assessment of the gas leakage and the fire and explosion due to it are studied, and the uncertainties of the risk assessment and its solution are discussed.