Safety and reliability analysis and application research of skid mounted cleaning equipment in flammable and explosive environments
Based on the safety and reliability analysis requirements of skid mounted cleaning equipment in flammable and explosive environments in the petrochemical industry,starting from the JSA operation risk assessment and control of skid mounted cleaning equipment in flammable and explosive environments,the safety risks of combustion and explosion with high degree of harm and transportation safety risks with high probability of occurrence were analyzed,and the design methods and judgment criteria for flammable and explosive and transportation safety were proposed;Based on Failure Mode and Criticality Analysis(FMECA),a universal reliability model for water jet cleaning systems was established,and reliability allocation and design were carried out for production design,inspection and acceptance,and quality evaluation of water jet cleaning equipment.The development of a water jet cleaning equipment which has combustion and explosion risk protection,stable uphill,downhill and lateral transportation,and an average time between failures tMTBF≥1 000 h was ultimately completed.The safety and reliability analysis and application research of water jet cleaning equipment can provide certain reference for the engineering design and construction operation of skid mounted cleaning equipment in flammable and explosive environments in the future.
water jet cleaningflammable and explosivetransportation safetysafety featurereliability