Vacuum freeze dryer Vacuum freeze dryer is a device that converts
liquid or semi-solid substances into dry products through freezing
and vacuum drying technology. 1. Principle of vacuum freeze dryer
The drying principle of the vacuum freeze dryer is to evaporate
liquid or semi-solid substances in a frozen state through a drying
process in a vacuum state, and transform the substances into dry
products. This process mainly involves three key factors: freezing,
vacuum, and heating. Among them, the purpose of freezing is to
freeze the substance to a low temperature state; the purpose of
vacuum is to extract the air around the substance to create a
vacuum state; the purpose of heating is to heat the substance
through a heater to evaporate the water. 2. Structure of vacuum
freeze dryer The vacuum freeze-drying machine is mainly composed of
cooling system, vacuum system, heating system, temperature control
system, electrical control system and other parts. Among them, the
cooling system mainly consists of refrigerators, condensers and
other parts to freeze the material; the vacuum system mainly
consists of vacuum pumps, adsorption tanks and other parts to
extract the air around the material; the heating system mainly
consists of heaters, heating plates and other parts , to heat up
the material; the temperature control system monitors and controls
the temperature of the material through a temperature sensor; the
electrical control system regulates and controls each part through
the controller.3. Application of vacuum freeze dryer Vacuum freeze dryers are
widely used in food, biological products, pharmaceuticals, chemical
and other industries. In the food industry, vacuum freeze dryers
are used to make various dried fruits, vegetables, meats and other
dried foods, as well as coffee, tea and other beverages. In the
biological products industry, vacuum freeze dryers are used to
produce various enzymes, antibodies, vaccines and other biological
products. In the pharmaceutical industry, vacuum freeze-drying
machines are used to produce various medicines, vaccines, etc. In
the chemical industry, vacuum freeze dryers are used to produce
various chemical raw materials, additives, etc. 4. Future
Development Trend of Vacuum Freeze Dryer With the advancement of
science and technology, vacuum freeze dryers are also constantly
developing and improving. In the future, vacuum freeze-drying
machines will be more intelligent and automated, and will also
receive greater improvements in energy utilization, drying
efficiency and other aspects. At the same time, the application of
vacuum freeze-drying machines in medicine, agriculture,
environmental protection and other fields will also be more widely
expanded.