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一、前言由于铜及其合金具有良好的导热性和耐蚀性能,工业上常常采用铜管换热系统。尽管人们已经研究出多种缓蚀剂,能有效地降低铜及铜合金表面的腐蚀作用,但是对铜缓蚀剂的研究,至今仍很活跃。一方面人们不断地追求新的缓蚀剂,它应具有显著的缓蚀效果、高水溶性、稳定安全、使用简便、低成本等优点。另一方面,即便就纯水—铜管换热系统而言,就其规模,运行工况,使用场合也各不相同,具体的防蚀问题应具体对待。例如原子能院的回旋加速器的水冷系统。原设计采用蒸馏水,为了节省能源,曾一度用离子交换水代替,运行后才发现铜管腐
I. Introduction Because copper and its alloys have good thermal conductivity and corrosion resistance, copper pipe heat exchange systems are often used in industry. Although a variety of corrosion inhibitors have been developed, which can effectively reduce the corrosion of copper and copper alloy surfaces, the research on copper corrosion inhibitors is still active. On the one hand, people continue to pursue new corrosion inhibitors, which should have significant corrosion inhibition, high water solubility, stability and safety, easy to use, low cost and so on. On the other hand, even for pure water - brass heat exchange system, the size, operating conditions, the use of different occasions, the specific anti-corrosion problems should be treated specifically. For example, the IAEA cyclotron water cooling system. The original design uses distilled water, in order to save energy, once replaced by ion exchange water, found after running brass