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首页> 外文期刊>Linde reports on science and technology >Preventing corrosion by catalytic reduction of oxygen in boiler and recirculation water
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Preventing corrosion by catalytic reduction of oxygen in boiler and recirculation water

机译：通过催化还原锅炉和循环水中的氧气来防止腐蚀

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摘要

Improvement of methods to reduce scale formation in boiler systems, especially by the introduction of phosphate-based stabilizers in the thirties, caused enhanced problems with corrosion, especially in thermally stressed parts of such systems due to a lack of protective covers formerly consisting mainly of carbonates and sulfates of calcium and magnesium. These problems mainly arise from reactions of the metallic surfaces, being protected by thin oxide layers only, with water and/or steam and their ingredients. Especially oxygen, dissolved in the raw water, is a most unwanted compound, since it leads to corrosive attack even at very low concentrations.
机译：减少锅炉系统结垢的方法的改进，尤其是在三十年代引入磷酸盐基稳定剂的情况下，引起了腐蚀问题的加剧，尤其是由于缺乏以前主要由碳酸盐组成的保护层，在此类系统的受热部分中尤其如此以及钙和镁的硫酸盐。这些问题主要是由于金属表面与水和/或蒸汽及其成分的反应所致，这些金属表面仅由薄氧化层保护。特别是溶解在原水中的氧气是最不需要的化合物，因为即使浓度很低也会导致腐蚀。

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