Vacuum lyophilizer equipment
The vacuum lyophilizer equipment is generally made up of vacuum freeze-drying chamber, vacuum system, refrigeration system, heating unit as well as control system. The standard technical process embraced by vacuum lyophilizer equipment is: pretreating → freezing → vacuum drying → product packaging → ended up item.
The functioning principle of the vacuum lyophilizer equipment: first of all, freeze the raw product below the eutectic point temperature to make the water in the products into solid ice, and after that load the pre-treated products right into drying chamber of the vacuum lyophilizer equipment under reduced temperature level vacuum state.
The heat energy of items is provided by the heating plate via heat transmission or radiation, to ensure that the water in the product is directly sublimated from ice to vapor status. The continually sublimated vapor is compressed and also captured to the U-shaped coil until the heating and also vacuumizing are quit according to the freeze-drying curve to meet the specific requirements. After 15 ~ 24 hours, the products are dried, and also the water is transferred to vapor condenser of the vacuum lyophilizer equipment.