知识导航
资源分类

某350 MW超临界机组给水铁含量超标原因分析及处理

某350 MW超临界机组给水铁含量超标原因分析及处理

Cause analysis and treatment of iron content of feed water exceeding the standard for a 350 MW supercritical unit

Cause analysis and treatment of iron content of feed water exceeding the standard for a 350 MW supercritical unit

doi:
摘要:
某350 MW超临界机组自完成168 h满负荷试运一年以来,给水铁含量长期超标.通过查定和分析发现,其主要由给水处理工况控制不当、除氧器加热汽源蒸汽品质差、高压加热器疏水管道冲刷腐蚀产物、汽泵前置泵汽蚀等原因所致.经采取有效措施处理后,给水含铁质量浓度稳定在2~4μg/L,达到含铁质量浓度小于5μg/L的标准要求.
Abstract:
The iron content of feed water has exceeded the standard for a long time,since the accomplishment of 168 h full load trial operation for a year in a 350 MW supercritical unit. It is found through assessment and analysis that the main causes are as follows:inappropriate working conditions of feed water treatment ,low steam quality of deaerator heating steam sources,high erosion corrosion products from water pipeline,and the cavitation of steam pump and fore pump,etc.. After taking effective measures,the iron content of feed water is stabilized at 2~4μg/L,which can meet the requirement of iron content less than 5μg/L standard.
作者 涂孝飞
Author: Tu Xiaofei
作者单位 华北电力科学研究院(西安)有限公司,陕西西安,710065
期 刊: 工业水处理 ISTIC EI SCI PKU CSSCI
Journal: Industrial Water Treatment
年,卷(期) 2018, 38(1)
分类号 TM621
关键词: 给水铁含量 知识脉络 流动加速腐蚀(FAC) 知识脉络 超临界机组 知识脉络
Keywords: Iron content in feed water flow accelerated corrosion(FAC) supercritical unit
机标分类号
基金项目
参考文献和引证文献
返回顶部参考文献
返回顶部引证文献
返回顶部本文读者也读过
返回顶部相似文献
返回顶部相关博文

知识产权声明| 服务承诺| 联系我们| 人才招聘| 客户服务| 关于我们

京ICP证:010071  互联网出版许可证:新出网证(京)字042号  京公网安备11010802020237号
万方数据知识服务平台--国家科技支撑计划资助项目(编号:2006BAH03B01)©北京万方数据股份有限公司  万方数据电子出版社