脱碳系统半贫液离心泵的腐蚀与防护  

CORROSION AND PROTECTION OF HALF-DEFICIENT LIQUID CENTRIFUGAL PUMP IN DECARBONIZING SYSTEM

作　　者：袁荣华[1] 黄世钊[1] 韦友龙 徐伟海 刘桂海 黄国团 

机构地区：[1]广西大学化学化工学院,南宁530004 [2]广西河池化工股份有限公司,河池547004

出　　处：《腐蚀与防护》2003年第6期254-256,259,共4页Corrosion & Protection

摘　　要：脱碳系统中的半贫液离心泵投用一年多后 ,由于受腐蚀严重 ,不能正常工作 .本文从离心泵本身的结构及操作条件等因素出发 ,分析了产生湍流腐蚀、空泡腐蚀、缝隙腐蚀的原因 ,针对产生腐蚀的原因 ,改善输送介质的条件 ,改造离心泵的结构 ,经实际运行二年多 。The half deficient liquid centrifugal pump in a decarbonizing system suffered from serious corrosion and did not work normally after operating only for about one year. Based on the structure and operation of the pump, the causes for the turbulent corrosion, cavitation corrosion and crevice corrosion were analyzed. The feeding media condition and structure were improved based on the analysis and subsequently the pump has been working well for more than two years.

关 键 词：离心泵 腐蚀 防护 脱碳系统 

分 类 号：TQ050.9[化学工程] TG172[金属学及工艺—金属表面处理]