关键词: CNG 加气站, 火灾爆炸, 风险后果, 指数评价, 定量风险评价

Abstract: An important aspect of risk assessment for CNG filling station is the evaluation of fire and explosion consequence.
At present the methods of risk evaluation are mostly qualitative-based，such as hazard analysis and fault tree analysis. The
influencing factors of damage in the station are illustrated including ordinary technology hazards and special technology hazards.
And the hazards of fire and explosion are analyzed. On that basis，the index method is used to carry out the evaluation of failure
consequence for the CNG filling station. It would lay the foundation for station quantity risk assessment.

Key words: CNG filling station, fire and explosion, risk consequence, index evaluation, quantity risk assessment