摘要
循环水系统铜质换热器出现腐蚀,将严重威胁生产装置的安全运行。针对中国石化北方某石化企业循环水系统现场监测铜片腐蚀速率超标现象,对循环水水质的腐蚀特性、氨氮、有机磷、微生物的含量等因素进行了综合分析,结果表明,在这些因素中碱度低、氨氮浓度超标、氯离子浓度高是引起铜片腐蚀的主要原因,采取提高M碱度和提高铜缓蚀剂的使用浓度等应对措施,可以有效降低铜质设备的腐蚀速率,避免铜质换热器腐蚀给装置带来安全风险。
Corrosion of copper heat exchanger is a serious threat to the stable operation of production equipment.In view of the over-standard corrosion of copper strip in the circulating water system of a petrochemical enterprise in north China,the corrosion characteristics,ammonia,organic phosphine,microorganism and other factors of the circulating water quality were comprehensively analyzed.Among these factors,low alkalinity,over-standard ammonia content and high concentration of chloride ion were the main reasons for the corrosion of copper strip.Measures such as increasing the M alkalinity and the concentration of corrosion inhibitor were taken,which could effectively reduce the corrosion rate of copper equipment and avoid the safety risk of copper heat exchanger corrosion to the production unit.
作者
张向农
Zhang Xiangnong(SINOPEC Energy Management and Environmental Protection Department,Beijing 100728)
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2021年第12期109-112,共4页
Petroleum Processing and Petrochemicals
关键词
循环水
铜质换热器
腐蚀
机理
circulating water
copper heat exchanger
corrosion
mechanism
作者简介
通讯联系人:张向农,高级工程师,主要从事石油化工企业节能节水政策研究、技术管理以及效果评价考核工作,E-mail:zhangxn@sinopec.com。
