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储罐是目前石油化工,石油加工企业和油气集输系统中液体原料、中间产品的重要的储存介质的容器。主要用来储存原油、汽油、柴油等油品介质。在内部介质与外部环境综合作用下油罐的顶部、底板与底圈壁板易发生严重的腐蚀,造成罐防腐层脱落和大面积的点蚀现象的发生。严重的会使罐顶塌陷与罐底板穿孔漏油。由于油罐的维修不但会耗费大量的资金,还会导致停产。因此,我们需要对油罐腐蚀的机理进行一些分析,找出造成腐蚀的原因,继而采取有效的防护策略,最终达到提高油罐使用寿命,延缓大修年限,减少油罐事故发生率的目的。
The storage tank is currently a container for important storage media for liquid raw materials and intermediate products in the petrochemical industry, petroleum processing enterprises and oil and gas gathering and transportation systems. Mainly used to store crude oil, gasoline, diesel and other oil media. In the internal media and the external environment under the combined effect of the top of the tank, bottom and bottom wall prone to serious corrosion, resulting in corrosion of the tank off and a large area of pitting phenomenon. Serious will collapse the tank top and tank floor perforation leak. As the tank maintenance will not only cost a lot of money, but also lead to stop production. Therefore, we need to analyze the mechanism of tank corrosion to find out the cause of corrosion, and then take an effective protection strategy, and ultimately achieve the purpose of improving tank life, delay overhaul, and reduce the incidence of tank accidents.