| The Bcompany oxygen system is a total of12units of oxygen equipment, as the company’s production of important energy supply unit, its security and stability of production will affect the whole company. The most commonly used method of gas production is cryogenics distillation, cryogenics part and cold part of the equipment throughout the production equipment. If isolation of the intermediate problems, cryogenics media by the liquid mess in the nonresistance, low temperature with pressure in the pipeline, and prone to pipe cold crisp (Cryogenic brittle deformation), causing the pipe to burst serious security incidents.This article describes the process characteristics of oxygen equipment, the production process of No.5Oxygen plante, the cold crisp accident process and cause of the accident, incident handling methods; After the read the relevant literature research, analysis of industryrelated accidents, and investigation of historical accident processing. On this basis, the use of safety management depth analysis of the causes of cold crisp accident, the cause of the accident under the4M method analysis, human factors, management factors, equipment factors, environmental factors;4M analysis of the use of failure analysis/inspection table, the chemical reaction matrix, and common hazard checklists. The use of HAZOP indepth analysis of the entire process of hidden problems and originally protective measures exist, and analyze the source reasons, and take20recommendations of21preventive measures taken. Through the implementation of, and achieved very good results. Not only eliminate the risks, while improving the security of the entire system. In this process, the management of processing that can be quantified, making the original abstract "danger" and "urgent","serious" can not be quantified indicators were quantified with digital management, management effectiveness. The thesis conclusions of the safety provides an effective method to the company’s oxygen system. |
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