| 火电厂屏式过热器热腐蚀失效原因分析 |
| |
| 引用本文： | 刘爽,赵永宁.火电厂屏式过热器热腐蚀失效原因分析[J].热加工工艺,2009,38(24). |
| |
| 作者姓名： | 刘爽 赵永宁 |
| |
| 作者单位： | 山东电力研究院,山东,济南,250002 |
| |
| 摘 要： | 对某燃煤火电厂锅炉屏式过热器爆管原因进行了探讨,并利用扫描电镜(SEM)、能谱(EDS)、X射线衍射仪(XRD)和金相显微镜对腐蚀产物的成分和形貌进行分析.实验结果表明:复合硫酸盐对管壁的热腐蚀,造成管壁减薄严重,与屏式过热器管子内部存在的异物共同导致过热爆管.
|
| 关 键 词： | 爆管 热腐蚀 失效 |
Analysis on Reasons of Hot Corrosion Invalidation of Platen Super-heater |
| |
| LIU Shuang,ZHAO Yongning.Analysis on Reasons of Hot Corrosion Invalidation of Platen Super-heater[J].Hot Working Technology,2009,38(24). |
| |
| Authors: | LIU Shuang ZHAO Yongning |
| |
| Abstract: | The reasons of tube-burst accidents of platen super-heater of thermal power plant were discussed, the composition and morphologies of corrosion products were analyzed by SEM, EDS, XRD and metallurgical microscope. The testing results show that the reasons of the superheating tube-burst are that hot corrosion of the composite-sulfate corrodes to tube causeing the tube attenuating and the existent of outer impurity in tube. |
| |
| Keywords: | tube-bursting hot corrosion invalidation |
| 本文献已被 万方数据 等数据库收录！ |
|
