摘要
镇海炼化换热器设备的腐蚀防护,除做好“一脱四注”外,还选择了材料升级、表面处理等手段,如对换热器管束镀Ni P合金,用 08Cr2AlMo钢管制作换热器管束,用双相不锈钢制作换热器管束,采用复合板等。另外在换热器制造工艺如热处理、焊接过程中采用技术措施以减少腐蚀的发生,取得了较好的效果。
This paper introduces some measures which can be used to protect heat-exchanger equipment from serious corrosion in refining high sulphur crude oil. The measures include materials selection and surface treatment etc for instance, use of Ni-P chemical plating, 08Cr2MoAl steel against corrosion of H_2S-H_2O and H_2S-HCN-H_2O, and duplex stainless steel against Cl^- corrosion.
出处
《腐蚀与防护》
CAS
北大核心
2005年第3期120-122,137,共4页
Corrosion & Protection
关键词
防腐蚀
换热器
材料选择
Corrosion protection
Heat exchanger
Materials selection
