Factors influencing flow accelerated corrosion in air cooling condensers

MENG Long; YANG Jing; SUN Benda; ZHAGN Xiangjin; QI Dongdong; NI Ruitao

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Factors influencing flow accelerated corrosion in air cooling condensers

Thermal Power Generation Vol. 43, Issue 12, Pages: 118-122(2014)

更新时间：2025-09-28

- Factors influencing flow accelerated corrosion in air cooling condensers
- 作者机构：
  
  1. 西安热工研究院有限公司
  2. 中国电力科学研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621
- Published：2014
- 稿件说明：
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MENG Long, YANG Jing, SUN Benda, et al. Factors influencing flow accelerated corrosion in air cooling condensers[J]. Thermal Power Generation, 2014, 43(12): 118-122.
DOI：

MENG Long, YANG Jing, SUN Benda, et al. Factors influencing flow accelerated corrosion in air cooling condensers[J]. Thermal Power Generation, 2014, 43(12): 118-122. DOI：

摘要

采用正交试验方法研究了空冷岛运行状态下温度、溶解氧含量、pH值、碱化剂种类和流速对碳钢部件流动加速腐蚀(FAC)的影响。结果表明:温度对空冷岛FAC的影响最大

溶解氧量次之

流速影响较小;碱化剂的使用与pH值相关

其联合作用不可忽视;水中溶解氧含量较低时

由于会影响金属表面Fe2O3保护膜的形成

使得金属易产生FAC

此时

提高水中溶解氧量可有效抑制FAC。

Abstract

By using the orthogonal test method

effects of dissolved oxygen content

pH value

different types of alkaline agent

and flow velocity on carbon steel flow accelerated corrosion(FAC)were discussed

under air cooling island working condition.Studies show that temperature has the largest influence on air cooling island FAC

dissolved oxygen takes the second place

and then is the velocity.The utilization of alkaline agent is associated with the solution's pH value

the interaction between the two can not be neglected.When the dissolved oxygen in water is low

the formation of Fe2O3 protective film is affected

metals are prone to FAC.By this time

improving dissolved oxygen in water is the effective way to control FAC.

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