道化法在煤焦化综合储罐区安全评价中的应用

采用道化学公司火灾、爆炸危险指数法对某炼焦厂综合储罐区进行安全评价,得出了其安全措施补偿前后的火灾、爆炸指数(F&EI)、危险等级、暴露半径、暴露面积以及暴露体积等指数。结果表明,在安全措施补偿前其火灾、爆炸指数为120.36,危险等级为"中等",暴露区域半径为30.82m;经过安全措施补偿以后其火灾、爆炸指数为75.94,危险等级为"较轻",暴露区域半径为19.44m,说明了该企业综合储罐区采取的安全措施是较适用的,有效的降低了该评价单元的火灾、爆炸事故发生的概率和事故能够造成的损害。采用荷兰应用科学院(TNO(1979))蒸气云爆炸(VCE)模拟模型对该储罐区可能发生的VCE事故进行了模拟计算,得出了不同泄露量下的各个损害等级的损害半径,为企业的事故风险预防和管理提供了科学依据。

This paper adopted the Dow＇s fire and explosion index method for risk assessment of coking＇s comprehensive storage section in a chemical plant,educed the value of F＆E1,hazard grade,radius,acreage and volume of the damage area before and after the compensation of safety precautions. The result of assessment shows that before the compensation of safety precautions,the value of F＆E1 is 120.36,the hazard grade is＂edium＂and the radius of the damage area is 30.82m. After the compensation of safety precautions,the value of F＆E1 is 75.94,the hazard grade is＂Light＂and the radius of the damage area is 19.44m. It indicates that the safety precautions in the coking＇s comprehensive storage section of this chemical plant are appropriate,and it has reduced the probability and damage of fire and explosion accidents in this assessment unit effectively.