1前言通常，人们对锅炉、冷却系统、石油炼制设备。油、气井设备的缓蚀比较关注，而对饮用水系统的缓蚀却不如在杀菌、絮凝等方面投入的精力多。实际上，城市供水系统的腐蚀和因此引起的供水故障是很普遍的。由于供水管道使用较久，腐蚀和结垢严重，降低了供水能力或管道破损造 1 Introduction Generally, people are concerned with boilers, cooling systems, and petroleum refining equipment. The corrosion inhibition of oil and gas well equipments is more concerned, but the corrosion of drinking water systems is not as good as that in sterilization and flocculation. In fact, the corrosion of urban water systems and the resulting water supply failures are very common. Due to the long-term use of water supply pipes, corrosion and scaling are serious, reducing water supply capacity or damaging pipelines.