连续重整装置不锈钢板式换热器除盐除垢AOLO化学清洗实施方案的技术论证

Continuous Reforming Unit in Stainless Steel Plate Heat Exchanger Desalination Descaling AOLO Implementation Scheme of Chemical Cleaning Technology Demonstration

连续重整装置板式换热器由于炼制原油的劣质化,介质中含有大量的有机氯,和反应过程中的NH^(4+)生成NH_4Cl结晶盐等,堵塞板式换热器板程和壳程,结垢物和注入水又会对316制作的不锈钢设备本体造成Cl^-等的腐蚀危害和潜在的连多硫酸腐蚀,鉴于此,我们在和设备原制作厂法国Alfalaval阿法拉伐公司提供的化学清洗指导方案基础上,结合国内国情和现场实际状况,在满足Alfalaval公司要求基础上,丰富和完善了化学清洗技术方案和避免发生氯化物应力腐蚀损伤以及连多硫酸腐蚀潜在危害,从而实现板换清焦除垢的同时,板换本身不受到任何的腐蚀损伤达到保护设备的目的。

the continuous reforming unit heat exchanger due to the poor quality of crude oil refining,medium containing organic chlorine amount, and reaction of NH4+ in the process of generating NH4Cl saltcrystals, blocking plate heat exchanger and shell, scaling and water injection and production equipment of316 stainless steel body caused by corrosion Cl- harm and potential polythionic acid corrosion, in view ofthis, based on chemical cleaning guide in our scheme and original equipment manufacturing factory in FranceAlfalaval Alfa Laval company provides, combined with the domestic situation and the actual situation, inorder to meet Alfalaval requirements of the company on the basis of rich and perfect and avoid occurrenceof chloride stress corrosion damage and even more sulfate corrosion potential hazards of chemical cleaningscheme technology, so as to realize the board for coke cleaning and descaling, in itself does not have anydamage to protect the equipment.