| 超临界火电机组的金属腐蚀特点和沉积规律 |
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| 引用本文： | 徐洪. 超临界火电机组的金属腐蚀特点和沉积规律[J]. 动力工程, 2009, 29(3) |
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| 作者姓名： | 徐洪 |
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| 作者单位： | 江苏省电力试验研究院,南京,210036;江苏方天电力技术有限公司,南京,211102 |
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| 摘 要： | 介绍了超临界水的物理化学性质,包括密度、离子积、介电常数、氢键和扩散系数等方面的特性.阐述了超临界火电机组的金属腐蚀特点和沉积规律,并通过实例加以说明.提出了抑制超临界机组金属腐蚀与沉积的措施,即机组投产前对高压给水系统进行充分、有效的化学清洗和机组投产后给水处理尽快转入加氧处理(OT)方式.
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| 关 键 词： | 超临界机组 金属腐蚀 沉积 全挥发处理 加氧处理 |
Characteristics of Metal Corrosion and Deposit Law for Supercritical Units |
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| XU Hong. Characteristics of Metal Corrosion and Deposit Law for Supercritical Units[J]. Power Engineering, 2009, 29(3) |
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| Authors: | XU Hong |
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| Affiliation: | 1;2;1.Jiangsu Electric Power Research Institute;Nanjing 210036;China;2.Jiangsu Frontier Electric Technologies Co.;Ltd.;Nanjing 211102;China |
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| Abstract: | The physiochemical properties of supercritical water including density,ion product,dielectric constant,hydrogen-bonding as well as diffusion coefficient were introduced.The characteristics of metal corrosion and deposit law for supercritical units were elaborated and illustrated by actual examples.The measures were proposed for supercritical units to inhibit metal corrosion and deposit.Namely the feed water system of the unit should be chemically cleaned sufficiently and effectively before commissioning,and... |
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| Keywords: | supercritical unit metal corrosion deposit all volatilized treatment oxygenation treatment |
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