在通常用散热器的沸腾干燥系统中,为了得到140℃左右的热风,需要约2吨/时、5—6kg/cm~2的饱和蒸汽。因为汽轮机的背压一般维持在3kg/cm~2(表压)左右,因此这2吨/时蒸汽一般要专用一台减温减压器或单独设置锅炉来提供。本文的分析表明:不需改动现有设备,也不要专用的减温减压器,只需增加一些管道和阀门,便使2吨/时蒸汽可以大部份节约下来。 In a conventional boiling drying system using a radiator, about 2 tons / hour of saturated steam of 5 to 6 kg / cm 2 is required to obtain hot air at about 140 ° C. Because the turbine back pressure is generally maintained at about 3kg / cm ~ 2 (gauge pressure), so this 2 tons / hour of steam is generally dedicated to a temperature reducer or a separate boiler to provide. The analysis of this paper shows that most of the 2 t / h steam can be saved by simply adding some pipes and valves without changing the existing equipment or using a special reducer.