Drying process of freeze dryer

The function of freeze dryer is to freeze the water-containing substance into solid state first, and then sublimate the water from solid state to gaseous state to remove the water and preserve the substance. The freeze dryer is composed of refrigeration system, vacuum system, heating system and electrical instrument control system. The main components are drying box, condenser, refrigerating unit, vacuum pump heating/cooling device, etc. The principle of freeze drying of freeze dryer is actually not complicated. Freezing and drying are divided into two processes, namely freezing and drying. Freezing is to freeze the treated substance containing moisture into a solid state. We carry out the drying process, which is to convert the moisture in the frozen substance from our solid state to gaseous state. We call it a sublimation process, such a process, in fact, it is also a drying process. Through the freeze dryer, we can easily remove the moisture in the treated substance, and the treated substance can be easily preserved, which will take a long time. In the process of compressed air of our freeze dryer, the freeze dryer reduces the freeze-drying temperature of compressed air. When the temperature continues to decrease, we can make all the moisture in the compressed air precipitate. The freeze-drying principle of the freeze-dryer is similar to the source flow of the refrigerator used in our home. When compressed air passes through the compressed air pipeline, the compressed air drops, so that the freeze-dryer can meet our drying requirements.