Experimental study on microbial fouling and corrosion on heat exchangers surface in power plants

HUANG Yuanping; WU Lin; XU Zhiming

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Experimental study on microbial fouling and corrosion on heat exchangers surface in power plants

Thermal Power Generation Vol. 44, Issue 6, Pages: 111-116(2015)

更新时间：2025-09-28

- Experimental study on microbial fouling and corrosion on heat exchangers surface in power plants
- 作者机构：
  
  1. 广东粤电中山热电厂有限公司
  2. 东北电力大学能源与动力工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM62
- Published：2015
- 稿件说明：
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HUANG Yuanping, WU Lin, XU Zhiming. Experimental study on microbial fouling and corrosion on heat exchangers surface in power plants[J]. Thermal Power Generation, 2015, 44(6): 111-116.
DOI：

HUANG Yuanping, WU Lin, XU Zhiming. Experimental study on microbial fouling and corrosion on heat exchangers surface in power plants[J]. Thermal Power Generation, 2015, 44(6): 111-116. DOI：

摘要

为了研究换热设备上微生物污垢的特性

采用易形成微生物污垢的铁细菌进行静态微生物污垢实验。采用扫描电镜对实验前、后的低碳钢片拍摄电镜图

用称重法记录污垢变化

采用光电比浊法记录铁细菌的数量变化。实验结果表明:低碳钢在清水环境中仅发生轻微腐蚀

有铁细菌存在后腐蚀会急剧增加;铁细菌会使碳钢表面发生严重的腐蚀并形成微生物污垢沉积;微生物污垢沉积与微生物腐蚀同时进行

当污垢沉积影响大于微生物腐蚀时

表现为污垢沉积

当微生物腐蚀影响大于污垢沉积时

表现为微生物腐蚀。

Abstract

In order to study the characteristics of microbial fouling on heat exchangers

the iron bacteria that is easy to form microbial fouling in the industrial circulating cooling water was selected to conduct static microbial fouling experiments.The low carbon steel pieces before and after experiment was analyzed by scanning electron microscopy.The gravimetric method was taken to record the changes of fouling.The optical turbidity was taken to record the number changes of bacteria.The results show that

the corrosion on low carbon steel was slight in the water environment

and iron bacteria can increase the corrosion dramatically.The iron bacteria can cause severe corrosion and microbial fouling on the surface of low carbon steel.Microbial fouling and microbial corrosion occurred simultaneously.When the effect of fouling was greater than that of corrosion

fouling occurred

otherwise

corrosion occurred.

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Related Author

JI Eyu1

LI Xianhong2

YAO Jiexin2 1.Nanyang College of Science and Technology

Related Institution

College of Biological and Chemical Engineering, Nanyang University of Technology

Yahekou Power Generation Co., Ltd

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