| 超临界锅炉末级过热器T91钢管爆管原因分析及预防措施 |
| |
| 引用本文： | 包文东,郑坊平,崔雄华,王飞.超临界锅炉末级过热器T91钢管爆管原因分析及预防措施[J].理化检验(物理分册),2012(10):704-707. |
| |
| 作者姓名： | 包文东 郑坊平 崔雄华 王飞 |
| |
| 作者单位： | [1]浙江浙能兰溪发电有限责任公司,兰溪321100 [2]西安热工研究院有限公司,西安710032 |
| |
| 摘 要： | 对某超临界锅炉末级过热器T91钢管的爆管原因进行了分析。结果表明:该T91钢管爆管是由于管内壁偏厚的氧化皮剥落,在下弯头处堆积造成管内介质流量减少,引起钢管过热所致。针对该问题,通过对T91等铁素体锅炉钢管进行内壁氧化皮厚度测量,并根据测量结果采取相应措施,可大大减少或避免由于氧化皮剥落、堆积而引起的爆管事故。
|
| 关 键 词： | 爆管 T91铁素体钢管 氧化皮厚度测量 |
Cause Analysis and Countermeasures on Bursting of T91 Steel Tubes in Supercritical Boiler Final Superheater |
| |
| BAO Weng-dong,ZHENG Fang-ping,CUI Xiong-hua,WANG Fei.Cause Analysis and Countermeasures on Bursting of T91 Steel Tubes in Supercritical Boiler Final Superheater[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2012(10):704-707. |
| |
| Authors: | BAO Weng-dong ZHENG Fang-ping CUI Xiong-hua WANG Fei |
| |
| Affiliation: | 1. Zhejiang Energy Lanxi Power Generation Co. , Ltd. , Lanxi 321100, China; 2. Xi＇an Thermal Power Research Institute, Xi＇an 710032, China) |
| |
| Abstract: | The bursting reason of T91 steel tube in supercritieal boiler final superheater was analyzed. The results show that the steel tube bursting resulted from the thick oxide scale of inner wall peeled and deposited at the lower elbow of the tube, which caused the flow area in the tube decreasing and resulted in superheating. The number of bursting of T91 ferritic steel tubes caused by peel-off and accumulation of oxide scale could be decreased greatly or even avoided by measuring the oxide scale thickness and adopting corresponding measures according to the measure results. |
| |
| Keywords: | tube bursting T91 ferritic steel tube oxide scale thickness measuring |
| 本文献已被 CNKI 维普 等数据库收录！ |
