石化企业的生产条件多高温高压,原料和产品多是易燃易爆或有毒有害。一旦发生事故,损失巨大,后果十分严重。据报道,1987～1989年间,美国、英国,法国,西德、印度、苏联等国曾先后发生过常减压蒸馏、催化裂化,催化重整、烷基化、灵活焦化装置爆炸起火事故.也发生过管线泄漏、管线和油罐爆炸起火事故。如。美国壳牌石油公司诺尔科炼油——石油化工联合企业催化裂化装置,因气体回收部分的管线腐蚀破裂,引起烃蒸气泄漏,从而造成爆炸起 Petrochemical production conditions and more high temperature and pressure, raw materials and products are mostly flammable or toxic and harmful. In the event of an accident, the loss is huge and the consequences are very serious. According to reports, from 1987 to 1989, the United States, Britain, France, West Germany, India, the Soviet Union and other countries have had common vacuum distillation, catalytic cracking, catalytic reforming, alkylation, flexible coking explosion explosion. Pipeline leaks occurred, pipelines and tank explosions and fire accidents. Such as. US Shell Oil Company Nuoerke refinery - petrochemical complex catalytic cracking unit, due to gas recovery part of the pipeline corrosion cracking, causing hydrocarbon vapor leakage, resulting in an explosion