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唐钢小型厂加热炉所属二次加热油罐及其附属管道,因地震破坏,产生断裂,破损严重。修复中,首先遇到的问题是,拆、安油罐接点必须用氧炔焰切割及电焊焊接,即需动火施工。但是,供油罐加热用的蒸气锅炉系统也遭破坏,罐内储存的大量原油无法加热排除。此外,油罐区地坪残留大量油污,若动火不当,可能引起失火或油罐爆炸事故。据介绍,这个油罐过去就曾经发生过检修时爆炸的恶性伤亡事故。我们认为,在切割油罐的过程
The secondary heating oil tank and its subsidiary pipeline belonging to the Tangshan Small-scale Plant Heating Furnace suffered severe damage due to earthquake damage. In the repair, the first problem encountered is that the contact points of the demolition and safety tanks must be cut with oxy-acetylene flames and electric welding, that is, the construction must be carried out by fire. However, the steam boiler system for heating the oil tank was also damaged, and a large amount of crude oil stored in the tank could not be removed by heating. In addition, a large amount of oil remains on the floor of the tank farm. If the fire is improper, it may cause fire or oil tank explosion. According to reports, the tank had been damaged in the past during the overhaul. We think that the process of cutting the tank