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传统的工艺流程是:软水箱→软水泵→热力除氧器→给水泵→省煤器→锅炉。该流程较普遍地用于工业锅炉和发电锅炉。工业锅炉所用的铸铁省煤器属于非沸腾式。要求省煤器出口水温应低于饱和温度40～50℃,否则会引起沸腾和发生水击故障。但是由于工业锅炉运行压力较低,按上述要求运行有一定的困难,例如某台锅炉常用压力为高6～8公斤力/厘米~2,其饱和温度为164～174℃,所以
The traditional process is: soft water tank → soft water pump → thermal deaerator → water pump → economizer → boiler. This process is more commonly used in industrial boilers and power generation boilers. Cast iron economizer used in industrial boilers are non-boiling type. Requirements economizer outlet water temperature should be lower than the saturation temperature 40 ~ 50 ℃, otherwise it will cause boiling and water hammer failure. However, due to the low operating pressure of industrial boilers, it is difficult to operate according to the above requirements. For example, the pressure commonly used in a boiler is 6-8 kgf / cm 2 and the saturation temperature is 164-174 ° C