热力发电Issue(6)：111-116,6.DOI:10.3969/j.issn.1002-3364.2015.06.111
电厂换热设备微生物污垢沉积与腐蚀实验
Experimental study on microbial fouling and corrosion on heat exchangers surface in power plants
摘要
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 op-tical 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 dramatic-ally.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.关键词
换热设备/铁细菌/微生物污垢/微生物腐蚀/低碳钢Key words
heat exchanger/iron bacteria/microbial fouling/microbial corrosion/low carbon steel分类
能源科技引用本文复制引用
黄元平,武霖,徐志明..电厂换热设备微生物污垢沉积与腐蚀实验[J].热力发电,2015,(6):111-116,6.基金项目
国家自然科学基金项目(51476025) （51476025）
