| 锅炉受热面联络管内壁氧化皮层缺陷分析 |
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| 引用本文： | 贺徙,马骁,金解平,徐贤富.锅炉受热面联络管内壁氧化皮层缺陷分析[J].电力科学与技术学报,2009,24(1):92-95. |
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| 作者姓名： | 贺徙 马骁 金解平 徐贤富 |
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| 作者单位： | 1. 中电投电力工程有限公司,上海,200233
2. 中国电力投资集团公司,北京,100032 |
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| 摘 要： | 针对开封火电厂2×600MW机组扩建工程中锅炉受热面联络管内表面上存在氧化层的问题，分析高温下钢铁表面氧化层组织结构，比较3种铁氧化物的PBR比及膨胀系数，得到氧化层容易剥离的原因；并确认硫酸酸洗法可以有效去除受热面联络管内表面上氧化层．
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| 关 键 词： | 受热面 联络管 氧化物 酸洗 |
Analysis and treatment for inner surface iron oxide in boiler connecting pipes |
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| HE Xi,MA Xiao,JIN Jie-ping,XU Xian-fu.Analysis and treatment for inner surface iron oxide in boiler connecting pipes[J].JOurnal of Electric Power Science And Technology,2009,24(1):92-95. |
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| Authors: | HE Xi MA Xiao JIN Jie-ping XU Xian-fu |
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| Affiliation: | HE Xi, MA Xiao, JIN Jie-ping , XU Xian-fu(1. Electric power engineering Lim. Co. of China power investment corporation, Shanghai 200233, China; 2. China power investment corporation, Beijing 1 00032, China) |
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| Abstract: | The iron oxide exists at the inner surface of heating surfance connecting pipes in Kaifeng power plant 2 ×600 MW units. The iron oxide microstruture is anlyzed in this paper, the PBR and expansion coefficient of FeO, Fe3O4 and Fe2O3 are compared, and the reason of the iron oxide is obtained. It is verifled that H2SO4 pickling is an effective method to clean iron oxide. |
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| Keywords: | heating surfance connecting pipe oxide acid cleaning |
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