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锅炉用水中，较常见的水垢是碳酸钙镁垢，水在使用的过程中，通过蒸发流失，促使水的硬度过高，在遇热的情况下就会产生水垢，这种碳酸盐水垢钙镁的含量占98%；如果用水量和蒸发量大的时候，水容量变小的情况下，水中的溶解氧过多，酸碱度失衡，特别是高温接触部件，腐蚀性极快，为了避免吗给水和补水的溶解氧过多，就会在水中添加亚硫酸盐，防止腐蚀；这种亚硫酸盐和钙镁垢在遇到高温的时候就会抱团形成坚硬的白黄色的硫酸盐水垢。海扬磁水商务部0536-897089