空冷凝汽器流动加速腐蚀的影响因素
Factors Influencing Flow Accelerated Corrosion of Air Cooling Condenser
摘 要
测量了空冷凝汽器流用Q235钢在不同试验环境中的表面极化电阻，研究了其流动加速腐蚀（FAC）的各种影响因素，并提出了防护方案。结果表明，提高初凝水的pH，提高初凝水中溶解氧含量，降低空冷凝汽器温度等方式可以抑制空冷凝汽器的流动加速腐蚀。
流动加速腐蚀
影响因素
air cooling condenser
flow accelerated corrosion (FAC)
influence factor
Abstract
The polarization resistance of air cooling conderser using Q235 steel was measured under different conditions. Various factors affecting the flow accelerated corrosion (FAC) of air cooling condenser were evaluated, and corrosion protection measures were proposed. Results show that FAC rate of the air cooling condenser can be inhibited by increasing the initial condensate pH value and dissolved oxygen concentration, and reducing the operation temperature.
中图分类号 TG174 DOI 10.11973/fsyfh-201701015
所属栏目 应用技术
基金项目 科研院所技术开发研究专项资金研究规划项目
收稿日期 2015/8/23
修改稿日期
网络出版日期
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引用该论文: MENG Long,HANG Wan-qi,SUN Ben-da,GAO Wen-feng. Factors Influencing Flow Accelerated Corrosion of Air Cooling Condenser[J]. Corrosion & Protection, 2017, 38(1): 65
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参考文献
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【4】BINDI C X,JEFFREY H,BARRY D,et al. Flow-accelerated corrosion in power plants[R].[s,n.],1998.
【5】GB12145-2008火力发电机组及蒸汽动力设备水汽质量[S].
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【8】WALKER Z H. Managing flow accelerated corrosion in carbon steel piping in nuclear plants[C]//American Society of Mechanical Engineers. California:[s.n.],2004:1-11.
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