| 火力发电厂大型铸钢件的焊接修复及安全评估 |
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| 引用本文： | 姚兵印,李太江,鲁玉龙,李建民,刘立营,张志博,王彩侠. 火力发电厂大型铸钢件的焊接修复及安全评估[J]. 电力学报, 2011, 26(3): 237-240,250 |
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| 作者姓名： | 姚兵印 李太江 鲁玉龙 李建民 刘立营 张志博 王彩侠 |
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| 作者单位： | 西安热工研究院有限公司;北方联合电力公司达拉特发电厂; |
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| 摘 要： | 分别以汽轮机汽缸和主给水管道电动阀的焊接修复及安全性评估为例,对铸钢件的常用焊接修复方法进行了分析和探讨.火力发电厂大型铸钢件壁厚大且厚度分布不均匀,在现场焊接修复后难以实施局部焊后热处理,因此通常采用异质冷焊修复方法进行修复.通过汽轮机汽缸的焊接修复表明在严格控制焊接工艺下,异质冷焊修复工艺应用于火力发电厂铸钢件的现...
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| 关 键 词： | 火力发电厂 铸钢件 焊接修复 异质冷焊 安全性评估 |
Welding Repair and Safety Assessment of Cast Steel Parts in Fossil Fuel Power Plants |
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| YAO Bing-yin,LI Tai-jiang,LU Yu-iong,LI Jian-min,LIU Li-ying,ZHANG Zhi-bo,WANG Cai-xia. Welding Repair and Safety Assessment of Cast Steel Parts in Fossil Fuel Power Plants[J]. Journal of Electric Power, 2011, 26(3): 237-240,250 |
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| Authors: | YAO Bing-yin LI Tai-jiang LU Yu-iong LI Jian-min LIU Li-ying ZHANG Zhi-bo WANG Cai-xia |
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| Affiliation: | YAO Bing-yin1,LI Tai-jiang1,LU Yu-long2,LI Jian-min1,LIU Li-ying1,ZHANG Zhi-bo1,WANG Cai-xia1(1.Xi'an Thermal Power Research Institute Co.,Ltd,Xi'an 710032,China,2.North United Power Company Darat Power Plant,Erdos 014300,China) |
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| Abstract: | The welding repair and safety assessment methods of cast steel parts such as steam turbine cylinder and motorized valve for main feed water pipe in fossil fuel power plants were introduced and analyzed.With heavy thickness and wall unevenness of cast steel parts,the implementation of post-weld heat treatment(PWHT) on-site after welding repair was very difficult.Usually arc-cold welding was adopted for cast steel parts welding repair.Nickel-base welding consumables were adopted for cast steel parts repairing... |
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| Keywords: | fossil fuel power plant cast steel parts welding repair heterogeneous cold-welding safety assessment |
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