柴油泄漏对循环冷却水系统缓蚀阻垢效果的影响

油品泄漏会导致循环水水质的变化，从而影响循环水系统中缓蚀阻垢剂的作用效果。本课题在考察柴油泄漏对氨基三亚甲基膦酸(ATMP)、羟基乙叉二膦酸(HEDP)、溶菌酶、漆酶等缓蚀阻垢剂的作用效果影响的基础上，通过将ATMP与溶菌酶、漆酶复配，解决了传统缓蚀剂在柴油泄漏情况下消耗量大、作用效果差的问题。当循环水中混入80 mg/L的柴油， 溶菌酶、ATMP和漆酶浓度分别为10，30， 40 mg/L时，碳钢的腐蚀速率控制在0.008 mm/a以下，缓蚀率可达95%以上。

IMPACT OF DIESEL LEAK ON PERFORMANCE OF CORROSION AND SCALE INHIBITORS IN CIRCULATING COOLING WATER SYSTEM

Oil leak causes quality changes of circulating cooling water, which affect the performance of the corrosion and scale inhibitors in circulating water system. In this study, the results of ATMP, HEDP and other corrosion and scale inhibitors in the case of diesel leaking was observed. And by using ATMP and biological enzyme together, a good corrosion inhibition in the circulating cooling water is obtained. A conclusion can be drawn that diesel oil leak will diminish the effect of ATMP, HEDP and other corrosion inhibitor. The ATMP, lysozyme and laccase pharmaceutical compound can achieve good inhibition results in the circulating cooling water at diesel dosage of 80mg/L. When the concentration of ATMP, lysozyme and laccase is 10,30,40mg/L, respectively, good inhibition effect can be achieved. The corrosion rate of carbon steel can be controlled below 0.008 mm/a. The corrosion inhibition rate is up to 95%.