摘要
为了掌握超期服役的B 80 1辅助锅炉的运行情况 ,对锅炉二级过热器炉管进行了宏观检查、管径测量与蠕胀分析、超声波测厚、硬度测定、金相检验和强度校核 ,对其安全性进行了综合分析。分析结果表明 ,B 80 1辅助锅炉的二级过热器上部和下部炉管金相组织都未发生石墨化和出现晶界蠕变裂纹 ;管径胀粗率都在 3.5 %以下 ,符合“在用锅炉定期检验规则”的相关规定 ;其剩余壁厚符合强度要求。综合分析结论认为 ,锅炉过热器炉管仍能安全运行。
The macroscopic inspection, tube diameter measurement, creep expanded analysis,ultrasonic thickness test, hardness test, metallographic structure analysis and strength check ect.of tube of boiler B 801, been beyond the term of service, are conducted.In addition, the integrated analysis of safety of boiler tube is also carried out. A synthetical analysis shows that the tube of boiler can still be safe.
出处
《理化检验（物理分册）》
CAS
2003年第8期417-419,共3页
Physical Testing and Chemical Analysis(Part A:Physical Testing)
