循环流化床锅炉省煤器复合型除垢化学清洗技术  

Compound Descaling Chemical Cleaning Technology for Economizer of Circulating Fluidized Bed Boiler

作　　者：谢缨 吴丽萍 严婷 孙刚 Xie Ying;Wu Liping;Yan Ting;Sun Gang(Xinjiang Yucheng Thermal Power Co.,Ltd.,Xinjiang,834000;Fengcheng Oilfield Operation Area of Xinjiang Oilfield Company,Xinjiang,834000)

机构地区：[1]新疆宇澄热力股份有限公司,新疆834000 [2]新疆油田公司风城油田作业区,新疆834000

出　　处：《当代化工研究》2020年第18期165-166,共2页Modern Chemical Research

摘　　要：阐述了循环流化床锅炉在使用油田污水回用过程中炉内氧化铁垢和有机物混合垢的组成;省煤器设计特点造成各段受热面吸热温度的不同,所结垢量的不同,根据受热面垢的类型设计了碱洗+酸洗进行分段交错式清洗的化学工艺,该工艺取得了较好的清洗效果,除垢率达到96.6%,且金属基体腐蚀速率在0.6334g/(m^2·h)。This paper expounds the composition of iron oxide scale and organic mixed scale in circulating fluidized bed boiler during the reuse of oilfield sewage.The design features of economizer result in different heat absorption temperatures and scaling amount on the heating surfaces of different sections.According to the types of scales on the heating surfaces,the chemical process of alkali washing and acid washing for staggered cleaning in sections was designed,which achieved good cleaning results,with the scale removal rate reaching 96.6%and the corrosion rate of metal matrix being 0.6334g/(m^2·h).

关 键 词：油田污水回用 氧化铁垢和有机物混合垢 化学清洗 省煤器 

分 类 号：T[一般工业技术]