价值工程
價值工程
개치공정
Value Engineering
2015年
28期
131-132
,共2页
管道%氢腐蚀%失效
管道%氫腐蝕%失效
관도%경부식%실효
tube%hydrogen corrosion%failure
对氨合成塔底部副线管道异径管的破裂事故，经过事故调查，从材料成分、硬度变化、壁厚测定、金相组织及氢腐蚀机理等角度，分析了该异径管破裂的原因。证实该异径管的破裂系氢腐蚀所致，并提出了一定的预防措施。
對氨閤成塔底部副線管道異徑管的破裂事故，經過事故調查，從材料成分、硬度變化、壁厚測定、金相組織及氫腐蝕機理等角度，分析瞭該異徑管破裂的原因。證實該異徑管的破裂繫氫腐蝕所緻，併提齣瞭一定的預防措施。
대안합성탑저부부선관도이경관적파렬사고，경과사고조사，종재료성분、경도변화、벽후측정、금상조직급경부식궤리등각도，분석료해이경관파렬적원인。증실해이경관적파렬계경부식소치，병제출료일정적예방조시。
The bursting accident for reducing pipe of subsidiary conduit on the foot of Ammonia Synthesis Converter was investigated. The reason was analyzed by using chemical and physical testing methods, material’s analysis, hardness and thickness testing, microstructure, theory of hydrogen corrosion. The results showed that the failure of the reducing pipe of subsidiary conduit was mainly caused by hydrogen corrosion. In addition, some effective preventive means are mentioned in the end.
