摘要
This paper introduces the development and industrial application of an on-line corrosion monitoring device for condenser tubes. Corrosion sensors are made up of representative condenser tubes chosen by eddy current test, which enable the monitoring result to be consistent with the corrosion of actual condenser tubes. Localized corrosion rate of condenser tubes can be measured indirectly by a galvanic couple made up of tube segments with and without pits. Using this technology, corrosion problems can be found in time and accurately, and anticorrosive measures be made more economic and effective. Applications in two power plants showed the corrosion measurements are fast and accurate.
介绍凝汽器腐蚀在线监测装置及工业应用情况。利用涡流探伤抽取有代表性的铜管制作腐蚀测量传感器,使测量结果与实际凝汽器管的腐蚀情况一致;用带腐蚀坑的铜管与不带腐蚀坑的铜管制作电偶对,可间接测量凝汽器管局部腐蚀速度。采用该技术可及时、准确地发现设备实际运行中存在的腐蚀问题,并使防腐蚀措施更经济有效。该装置经2个电厂的实际应用,表明腐蚀测量快速、准确。
