Condensate from the first-effect calandria is used for preheating the feed . 一效列管换热器中出来的冷凝液被用来预热进料。
2.
Hot vapor from this unit passes to the second-effect calandria and causes boiling in the second evaporator . 从这台设备中出来的热蒸汽通进二效的列管换热器，使第二台蒸发器中的液体沸腾。
3.
In model zw . the indirect heating still is omitted . the condensor adapts calandria heat exchanger . of course the screw plate heat exchange and coil pipe cooler can also be provided as request . when adapt coil pipe cooler , the buffer tank 冷凝器采用列管式换热器，也可根据用户要求供应螺旋板式换热器，冷却器采用盘管式冷却器，采用盘管式冷却器并配套供应稳压罐和比重测定器。
