热泵热水烘干:
主要有翅片式蒸发器(外机)、压缩机、翅片冷凝器(内机)和膨胀阀四部分组成,通过让工质不断完成蒸发(吸取室外环境中的热量)→压缩→冷凝(在室内烘干房中放出热量)→节流→再蒸发的热力循环过程,从而将外部低温环境里的热量转移到烘干房中,冷媒在压缩机的作用下在系统内循环流动。它在压缩机内完成气态的升压升温过程(温度高达100℃),它进入内机释放出高温热量加热烘干房内空气,同时自己被冷却并转化为流液态,当它运行到外机后,液态迅速吸热蒸发再次转化为气态,同时温度可下降至-20℃~-30℃,这时吸热器周边的空气就会源源不断地将热量传递给冷媒。
冷凝式烘干:
通过冷凝器将烘干过程中产生的水蒸汽冷凝为水分再排出冷凝式又分为蒸汽冷凝烘干,而是利用自然界冷热双风流交换的原理,以循环的空气来进行降温处理,以空气冷凝完成烘干。
Freezing means lowering the temperature and allowing the object to solidify and freeze. Also called "refrigeration", it is the application of thermodynamics principle, the method of artificially manufacturing low temperature, refrigerator and air conditioner are all based on the principle of refrigeration. From the chemical point of view, it is generally used a gas with a high critical point, pressurized and liquefied, and then it is vaporized and absorbed, and this process is repeated. When liquefying, it is exothermic in other places, and when it is vaporized, it absorbs heat to the required range. .