摘要
为了抑制直接空冷凝汽器液相流动加速腐蚀,利用自主研制的流动加速腐蚀模拟试验装置,在高阻抗纯水体系下,采用电化学法和质量损失法测定流动加速腐蚀速率。结果表明:电化学法测定的流动加速腐蚀速率与质量损失法测定的流动加速腐蚀速率结果相近,且流动加速腐蚀速率均随乙醇胺浓度的增大而降低;乙醇胺工况下的流动加速腐蚀速率略低于氨工况下的流动加速腐蚀速率;当直接空冷凝汽器液相中含相同浓度的氨和乙醇胺时,氨的加药量是乙醇胺加药量的490倍。
In order to suppress the accelerated corrosion of direct air-cooled condenser liquid phase flow,the flow-accelerated corrosion simulation test device independently developed was used to determine the flow-accelerated corrosion rate by electrochemical method and mass loss method under high impedance pure water system.The results show that the flow-accelerated corrosion rate determined by electrochemical method is similar to that determined by mass loss method,and both flow-accelerated corrosion rates decrease with the increase of ethanolamine concentration;the flow-accelerated corrosion rate under ethanolamine condition is slightly lower than that under ammonia condition;when the direct air-cooled condenser liquid phase contains the same concentration of ammonia and ethanolamine,the dosage of ammonia is 490 times that of ethanolamine.
作者
王园园
王振宇
王彩霞
王玮
张茜
胡振华
WANG Yuan-yuan;WANG Zhen-yu;WANG Cai-xia;WANG Wei;ZHANG Qian;HU Zhen-hua(Xi’an Yitong Thermal Power Technical Service Co.,Ltd.Xi’an 710054,China;Huaneng pingliang Power Generation Co.,Ltd.Plingliang 744032,China;Huaneng Gansu Energy Development Co.,Ltd.Lanzhou 730070,China;Xi’an Thermal Power Research Institute Co.,Ltd.Xi’an 710054,China)
出处
《全面腐蚀控制》
2025年第4期199-204,共6页
Total Corrosion Control
基金
中国华能集团科技资助项目:直接空冷凝汽器运行腐蚀抑制方法的研究及应用(HNKJ23-HF73)。
关键词
高阻抗纯水体系
碳钢
溶液电阻
极化电阻
乙醇胺
流动加速腐蚀
high-impedance pure water system
carbon steel
solution resistance
polarization resistance
ethanolamine
flow accelerated corrosion
作者简介
王园园(1988-),女,陕西渭南人,工程师,硕士,主要研究方向为电厂设备防腐及水处理。
