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据调查数据显示,世界工业发达国家因腐蚀造成的经济损失约占当年国民生产总值的1.8%~4.2%左右。我国每年因腐蚀引起的损失估计达5000亿元人民币,约占国民经济总值的5%。储油罐的腐蚀问题也是个老大难问题。储油罐腐蚀的加剧会造成储罐泄漏,并引发严重的爆炸事故发生。金属储罐所储存的油品往往含有氢、硫酸、有机和无机盐以及水分等腐蚀性化学物质,加上罐外壁受环境因素影响,油罐的寿命会大大缩短。如果
According to the survey data, the economic losses caused by corrosion in industrialized countries in the world account for about 1.8% to 4.2% of the GNP of that year. The annual loss caused by corrosion in China is estimated to be 500 billion yuan, accounting for about 5% of the total national economy. Corrosion of storage tanks is also a chronic problem. Exacerbations of tank corrosion can cause tank leaks and lead to serious explosions. Oil stored in metal storage tanks often contain hydrogen, sulfuric acid, organic and inorganic salts and corrosive chemicals such as moisture. In addition, due to the environmental factors affecting the outer wall of the tank, the life of the tank will be greatly shortened. in case