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蒸汽机车热力状态与传热面上(烟管)生长水锈,对蒸汽升腾影响很大。当前国内外蒸汽机车构造都是在锅胴里面装有烟管,通过烟管传热到水,使水温不断上升达到汽化,变成蒸汽,由蒸汽能转为机车动力能。蒸汽是由水升温而形成,锅炉使用天然水,水中含有一些暂时性溶解盐及其它不溶物遗留在锅炉中。在高温高压下,锅炉水不断浓缩,而使锅炉水溶解盐的含量增高。当超过饱和程度和高温作用开始结晶,析出沉积附着在传热面(烟管)上。这种深褐色的
Steam locomotive thermal status and heat transfer surface (smoke pipe) growth of water rust, a great influence on steam rising. At present, the construction of steam locomotive both at home and abroad is equipped with a tobacco pipe in the inside of the pan, which transfers heat to the water through the tobacco pipe to increase the water temperature to vaporize and turn it into steam, which can be converted into locomotive power by steam. Steam is formed by the water warming, the boiler uses natural water, the water contains some temporary dissolved salt and other insoluble matter left in the boiler. Under high temperature and pressure, the boiler water is continuously concentrated, which increases the content of dissolved water in the boiler water. When the degree of saturation and high temperature began to crystallize, precipitation deposition attached to the heat transfer surface (pipe). This dark brown