锅炉经济运行的考核指标是供汽(供热)成本和燃料消耗量。供汽成本包括人员工资、设备折旧及大修费用和水、电、盐的消耗。其中盐的消耗和水的消耗占相当的比重,选择合理的水处理方法对锅炉的安全节能具有重要作用。从普查的情况来看,在锅炉房采用单级钠制水的较为普遍,采用双级钠制水的较为少见。通过对双级钠串联制水方法的实践表明,该法是制 The evaluation index of boiler economic operation is the cost of supplying steam (heating) and the fuel consumption. Gas supply costs include staff salaries, equipment depreciation and overhaul costs and water, electricity and salt consumption. Salt consumption and water consumption account for a considerable proportion of them. Choosing a reasonable water treatment method plays an important role in the safety and energy saving of the boiler. From the census of the situation, the use of single-stage sodium in boiler room is more common, the use of two-stage sodium water is relatively rare. Through the two-stage sodium series water method practice shows that the method is the system