关键词: 液氯钢瓶, 泄漏, 事故后果评价, 对策措施

Abstract: Liquid chlorine is very important chemical raw material which plays a pivotal role in national economy. However, liquid chlorine is a dangerous chemical with strong oxidization and corrosivity. Its main risk is poisoning and suffocation. Taking a water supply company as an example, liquid chlorine is mainly used in disinfection process. And now through simulating the poisoning accident caused by the leakage of liquid chlorine cylinder; the accident consequences are calculated by the risk index method and accident analysis method and safety countermeasures are proposed. Through consequence assessment on liquid chlorine leakage accident, technical guidance is provided for safety management of liquid chlorine cylinder, preparation of special emergency rescue plan and risk assessment. assessment on safety risks in Shengli Oilfield, this paper selects HAZOP /LOPA to assess nodes and BOWTIE to assess intermediate events. It gives full consideration to the escalation factors such as hidden dangers of work safety. The paper introduces safety hazard correction factors to correct the initial risks and protective measures. It makes reasonable selection of failure probability value for management measures. It calculates the residual risk values strictly and verifies the role of the current risk management and control measures. Then the paper proposes new risk management and control measures. It formulates and implements risk reduction plans to ensure that the residual safety risks are always in a quantifiable, acceptable, and controllable state.

Key words: liquid chlorine cylinder, leakage, accident consequence assessment, countermeasures