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各类油品储罐清罐作业是石油化工企业的一项经常性工作,主要由清罐作业和检查维修两部分组成。重油储罐在投用一定时间后,重油中的蜡、泥沙等杂质就会沉积在罐底和罐壁上,使储罐有效容量减少,影响储油罐效率,会出现腐蚀、变形、不均匀沉降、罐内加热盘管老化、排水管线不畅通等问题。因此,重油储罐需要定期或不定期进行部分或全面的检查维修和清除罐内淤渣,而在清罐过程中会产生大量可燃液体或气体,有时还带有毒性。若清罐不当或不彻底极易造成火灾、爆炸、中毒等事故。本文就如何确保重油储罐清罐施工作业安全,作一浅显讨论。
Various types of oil storage tank cleaning operations are petrochemical enterprises a regular job, mainly by cleaning operations and inspection and maintenance of two parts. Heavy oil storage tank in a certain period of time, the heavy oil in the wax, sediment and other impurities will be deposited in the tank bottom and tank wall, reducing the effective capacity of the tank, affecting the tank efficiency, corrosion, deformation, not Uniform settlement, aging of the heating coil in the tank, the drainage line is not smooth and other issues. As a result, heavy oil storage tanks require periodic or occasional partial or complete inspections to repair and remove tank sludge, which can produce significant quantities of flammable liquids or gases, sometimes with toxicity, during tank cleaning. Improper or incomplete cleaning can easily lead to fire, explosion, poisoning and other accidents. This article on how to ensure the safety of heavy oil tank cleaning operations, made a plain discussion.