The lyophilizer is a pressure vessel
I don't know what you mean by freeze-drying machine. If so, then the pressure vessel, the chamber and the cold well are the pressure vessels.
The lyophilizer is a pressure vessel, which is negative at low temperature and is usually about 10 pat. In the case of sterilization, the pressure is positive, usually 1.4 kilograms. Ha ha, my viewpoint, hope to give teach.
The lyophilizer is not a pressure vessel. Using the lyophilizer is to fresh frozen food quickly, into the vacuum container dehydration, under the condition of vacuum, water from solid ice into gas, making the material drying. Food made from freeze-dried technology not only colors, smells, tastes and forms, but also preserves the vitamins, protein and other nutrients in the food. Before eating, a little bit of processing and a few minutes will return to fresh food. Vacuum freeze drying (lyophilization) is the first to freeze water matter into a solid, then make the moisture from the solid sublimate to gas, and then the method to remove moisture and save material. Freezing process of material is vacuum system of vacuum and take away part of the water, on the other hand is cold materials when the certain molecules contained in the water to the surface of the material to freeze, to fulfill the requirements of frozen, by the heating system to heat drying of material, through vacuum material contained in the water to freeze complement to freeze in the box, to fulfill the requirements of materials freeze-drying.
