Reason Analysis and Control Strategy on Operation Corrosion in Direct Air-cooled Condensers (ACC)
Authors
Yuqiang Deng, Zhi Ye, Dongdong Qi, Fei Song, Dongmei Wang, Shaoyong Zhang, Guobao Cai, Jiguang Zhang, Wei Tu
Corresponding Author
Yuqiang Deng
Available Online May 2019.
- DOI
- 10.2991/seeie-19.2019.49How to use a DOI?
- Keywords
- thermal power plant; direct air cooling unit; air condenser; operating corrosion; corrosion control; alkalizing agent
- Abstract
The operation corrosion in direct air-cooled condensers (ACC) had been widespread in china. Various water treatment devices were used for condensate water in order to control feedwater iron concentration below the limit according to guidelines, however direct ACC operation corrosion still existed and needed a thorough solution. Ammonia has a lower partition coefficient in the initial condensate, as well acidic anions are concentrated in the initial condensate, thus the initial condensate has lower pH, which results in the above mentioned corrosion. To reduce the direct ACC operation corrosion, methods could be applied, such as dosing higher ammonia in feedwater or dosing some organic alkalizing reagent in exhaust steam as an auxiliary.
- Copyright
- © 2019, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Yuqiang Deng AU - Zhi Ye AU - Dongdong Qi AU - Fei Song AU - Dongmei Wang AU - Shaoyong Zhang AU - Guobao Cai AU - Jiguang Zhang AU - Wei Tu PY - 2019/05 DA - 2019/05 TI - Reason Analysis and Control Strategy on Operation Corrosion in Direct Air-cooled Condensers (ACC) BT - Proceedings of the 2019 2nd International Conference on Sustainable Energy, Environment and Information Engineering (SEEIE 2019) PB - Atlantis Press SP - 212 EP - 216 SN - 2352-5401 UR - https://doi.org/10.2991/seeie-19.2019.49 DO - 10.2991/seeie-19.2019.49 ID - Deng2019/05 ER -