| 华电宁夏灵武发电有限公司~#1炉低温过热器爆管原因分析 |
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| 引用本文： | 徐贤,雷雨春,常伟,马明烨,邵旭明,韩冬.华电宁夏灵武发电有限公司~#1炉低温过热器爆管原因分析[J].宁夏电力,2009(2). |
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| 作者姓名： | 徐贤 雷雨春 常伟 马明烨 邵旭明 韩冬 |
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| 作者单位： | 1. 宁夏电力科技教育工程院,宁夏,银川市,750011
2. 华电宁夏灵武发电有限公司,宁夏,灵武市,750400 |
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| 摘 要： | 华电宁夏灵武发电有限公司#1炉,投运约2780 h时,低温过热器管发生泄漏爆管,通过时低温过热器管现场宏观检查、内窥镜检查和取样微观组织检查,进行综合分析,指出第49-5根管子原材料本身局部存在过热的粗大魏氏组织是此次低温过热器管发生爆破泄漏的主要原因.
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| 关 键 词： | 低温过热器 爆管 裂纹 |
Cause analysis for tubes break of the low temperature overheater in No.1 boiler of Huadian Ningxia Lingwu Power Generation Co.,Ltd. |
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| XU Xian,LEI Yu-chun,CHANG Wei,MA Ming-ye,SHAO Xu-ming,HAN Dong.Cause analysis for tubes break of the low temperature overheater in No.1 boiler of Huadian Ningxia Lingwu Power Generation Co.,Ltd.[J].Ningxia Electric Power,2009(2). |
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| Authors: | XU Xian LEI Yu-chun CHANG Wei MA Ming-ye SHAO Xu-ming HAN Dong |
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| Affiliation: | 1.Ningxia Electric Power Technological & training Engineering Institute;Yinchuan;Ningxia 750011;China;2. Huadian Ningxia Lingwu Power Generation Co.;Ltd.;Lingwu;Ningxia 750400 |
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| Abstract: | Through the macroscopic examination, endoscope examination and sampling microscopic examination, analyzes the leakage and break reason of the low temperature over heater pipes when operating 2780 h at the No.1 boiler in Huadian Ningxia Lingwu Power Generation Co., Ltd., draws the conclusion that the raw material of the No. 49 -5 tube existing a local overheating thick Widmanstatten structure caused the break and leakage of the low temperature over heater pipes. |
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| Keywords: | low temperature over heater tube break crack |
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