| 在役换热器管漏磁内检测传感器设计 |
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| 引用本文： | 武新军,刘宏伟,康宜华,李涛,李春树. 在役换热器管漏磁内检测传感器设计[J]. 湖北工业大学学报, 2008, 23(1): 5-9 |
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| 作者姓名： | 武新军 刘宏伟 康宜华 李涛 李春树 |
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| 作者单位： | 1. 华中科技大学机械科学与工程学院,湖北,武汉,430074
2. 中国石油化工股份有限公司,天津,300271 |
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| 摘 要： | 根据漏磁检测基本原理，研制了在役换热器管漏磁内检测传感器，包括磁化方式和检测元件的选取等．并在38mm的换热管上进行了详细实验，结果表明该传感器可有效检测出1．6mm的通孔、20％的外壁截面积损失和20％壁厚深度圆锥盲孔．该装置具有检测灵敏度高，性能可靠的优点，有较好的应用前景．
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| 关 键 词： | 铁磁性换热器管 漏磁检测 无损检测 缺陷 |
| 文章编号： | 1003-4684(2008)01-0005-05 |
| 修稿时间： | 2007-10-30 |
Design of Magnetic Flux Leakage In-line Testing Tools for In-Service Heat Exchanger Tubes |
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| WU Xin-jun,LIU Hong-wei,KANG Yi-hua,LI Tao,LI Chun-shu. Design of Magnetic Flux Leakage In-line Testing Tools for In-Service Heat Exchanger Tubes[J]. Journal of Hubei University of Technology, 2008, 23(1): 5-9 |
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| Authors: | WU Xin-jun LIU Hong-wei KANG Yi-hua LI Tao LI Chun-shu |
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| Affiliation: | WU Xin-jun, LIU Hong-wei, KANG Yi-hua, LI Tao, LI Chun-shu (1 School of Mechanical Sci. ＆ Engin. Huazhong Univ. of Sci. and Technology ,Wuhan 430074,China; 2 Tianjin Petro-Chemical Corporation, Tianjin 300271, China) |
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| Abstract: | Heat exchanger tubes are the key components in industries and their failure cause large economic loss.It is important to research on the in-service inspection method of ferromagnetic tubes.One type of in-line testing tools for in-service ferromagnetic heat exchanger tubes was developed according to the principle of magnetic flux leakage testing.Selection of magnetization method and magnetic sensor is studied.The detailed test was employed on the diameter 38mm of tubes.Testing results indicated that the tool can test down hole diameter 1.6mm,20% metallic area loss of outer wall and 20% cone hole depth of wall thickness.It will be employed for its high sensitivity and reliable performance. |
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| Keywords: | heat exchanger tube magnetic flux leakage testing nondestructive testing defect1 |
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