Improvement of Water Heating System in Stem Dipping Machine

The scale deposit on the water heating coil in stem dipping machine will deteriorate heating performance, therefore the coil-heating was replaced by direct steam ejecting. After improvement, the time for raising temperature from 25℃ to 60℃ reduced from 21-28 to 14 minutes. When water temperature approached to lower control limit, steam heating system raised it timely. The constant water temperature during stem processing was guaranteed.