BI Fashen, SUN Benda, LI Deyong. SUPRESSION OF FLOWACCELERATED CORROSION BY USING OXYGENADDING TREATMENT OF THE FEEDWATER[J]. Thermal power generation, 2005, (2): 52-53.
DOI:
BI Fashen, SUN Benda, LI Deyong. SUPRESSION OF FLOWACCELERATED CORROSION BY USING OXYGENADDING TREATMENT OF THE FEEDWATER[J]. Thermal power generation, 2005, (2): 52-53. DOI: 10.19666/j.rlfd.2005.02.017.
SUPRESSION OF FLOWACCELERATED CORROSION BY USING OXYGENADDING TREATMENT OF THE FEEDWATER
摘要
分析伊敏电厂2号俄制K 500 23.5 4型汽轮机组高压加热器盘管腐蚀泄漏的原因
认为主要由流动加速腐蚀(FAC)引起。为此
采用给水加氧进行了处理
成功地抑制了 FAC
使炉前给水铁含量由5.22μg/L降至1.52μg/L
高压加热器腐蚀泄漏问题得以解决。
Abstract
The causes leading to corrosion leakage of coil pipe in highpressure heater for K500235.4 type steam turbine made by Russia for unit No.2 in Yimin Power Plant have been analysed. It is considered that the main cause is due to flowaccelerated corrosion (FAC). In this connection
treatment of adding oxygen into feedwater has been adopted
successfully inhibiting the FAC
making iron content in the feedwater before boiler to be decreased from 5.22μg/L to 1.52μg/L
and corrosion leakage problem of the highpressure heater to be solved.