| 蒸汽发生器的腐蚀失效分析 |
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| 引用本文： | 程芳婷,孙立忠.蒸汽发生器的腐蚀失效分析[J].中国腐蚀与防护学报,2006,26(6):376-379. |
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| 作者姓名： | 程芳婷 孙立忠 |
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| 作者单位： | 1. 江苏联合职业技术学院连云港中医药分院,连云港,222006
2. 江苏核电有限公司,连云港,222042 |
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| 摘 要： | 田湾核电站蒸汽发生器在冷态和热态调试结束后发生了穿晶型应力腐蚀裂纹及点蚀,其腐蚀原因可能为运输及安装期间保养措施不当.提出对蒸汽发生器进行干保养停运保护、由设计的KOH-N2H4碱性水冲洗方案调整为NH3-N2H4碱性水、降低水中溶解氧和Cl-的含量、提高溶液pH、对设备进行定期清洗、化水系统加装反渗透装置等方案,以保证蒸汽发生器的稳定运行.
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| 关 键 词： | 蒸汽发生器 应力腐蚀 点蚀 |
| 文章编号： | 1005-4537（2006）06-0376-04 |
| 收稿时间： | 2006-06-19 |
| 修稿时间： | 2006-06-19 |
ANALYSIS OF CORROSION INVALIDATION OF STEAM GENERATORS |
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| CHENG Fangting,SUN Lizhong.ANALYSIS OF CORROSION INVALIDATION OF STEAM GENERATORS[J].Journal of Chinese Society For Corrosion and Protection,2006,26(6):376-379. |
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| Authors: | CHENG Fangting SUN Lizhong |
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| Affiliation: | 1. Jiangsu Union Technical Institute of Traditional Chinese Medicine, Lianyungang 222006 ; 2. Jiangsu Nuclear Power Corporation, Lianyungang 222042 |
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| Abstract: | Stress corrosion cracking and pit corrosion of steam generators in Tianwan Nuclear Power Plant is described, The cause of corrosion is preservation method which is not correct during transportation and installation, measurement and suggestions for safe operation of steam generator is proposed. Steam generators should be protected dryly during outage, It is necessary to adjust scour project by using KOH - N2H4 alkali liquor instead of NH3 - N2H4 alkali liquor, to reduce the content of deliquescent - oxygen and Cl^- in water, to increase the pH value of the liquor, to purge of equipment regularly and to install reverse infiltration equipment in chemistry water treatment system. |
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| Keywords: | steam generator stress corrosion cracking pit corrosion |
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