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前言锅炉(尤其是液态排渣锅炉)水冷壁管外壁的高温腐蚀是降低锅炉安全经济运行的重要因素之一。造成腐蚀的原因比较复杂,国内外虽然已做过大量的工作,但腐蚀至今仍难于避免。73年我所和宝鸡电厂在该厂2号炉水冷壁上安装渗铝钢管进行防腐试验以来,至79年3月,先后在该炉上安装过渗铝钢管200余根,部分管累计运行已达33502小时。历年来对所有渗铝钢管进行了外壁检查,均未发现有腐蚀特征。而未渗铝钢管在运行1～2万小时之后,则因外壁腐蚀而需不断更新,实践证明,应用渗铝钢管是防止锅炉水冷壁高温腐蚀的经济而有
Preface Boiler (especially the liquid slag boilers) high temperature corrosion of the outer wall of the water wall tube boiler is one of the important factors to reduce the safe and economical operation of the boiler. The causes of corrosion are complicated. Although a great deal of work has been done both at home and abroad, corrosion is still difficult to avoid. 73 years I and the Baoji Power Plant No. 2 furnace in the factory installed on the wall of the water cooled aluminized steel pipe corrosion test since March 79, has installed in the furnace over 200 aluminized steel pipe, some of the cumulative operation of the pipeline has been Up to 33502 hours. Over the years on all aluminized steel pipe wall inspection, found no corrosion characteristics. The non-aluminized steel pipe in the operation of 1 to 2 million hours, due to corrosion of the outer wall and need to be constantly updated, the practice proved that the application of aluminized steel pipe is to prevent boiler water wall high temperature corrosion and economic