Vacuum freeze dryer composition system
Vacuum freeze dryer is also called freeze dryer equipment, mainly divided into ordinary type and gland type, while vacuum freeze dryer system consists of refrigeration system, vacuum system, control system, circulation system and hydraulic system. The following Shanghai Tianfeng manufacturers say the functions and functions of each component system:
1. Refrigeration system: It is the most important part of the vacuum freeze dryer. It is composed of a refrigeration compressor and auxiliary facilities. It can provide a cold source for the drying box and cold trap. In addition to the display in the refrigeration system, In addition to the high and low pressure gauges, there is also a pressure controller. When the high pressure is too high, the high pressure relay will start to work, at this time, the compressor will stop working;
2.Vacuum system: It consists of a drying box, a cold trap, a vacuum valve, a vacuum pump, a vacuum pipe, a vacuum measuring gauge, etc. Among them, the vacuum pump unit has a strong suction capacity, on the one hand, it can promote the moisture of the drying box in the vacuum Sublimation is performed in a state, on the other hand, the system will form a vacuum pressure difference between the cold trap and the drying box, so that the moisture in the drying box can be successfully captured by the cold trap after sublimation;
3. Control system: It is mainly composed of programmable program controller, touch screen, peripheral relays, sensors, etc .;
4. Circulation system: In the vacuum freeze dryer, the circulation system is also an indispensable part. The freeze drying and heating of the cold dryer are a process technology that depends on the temperature difference to cause the material to be transferred. The refrigeration and The heating is performed by the heat transfer of the heat transfer oil. In order for the heat transfer oil to circulate throughout the system, a shielded circulation system is required to work;
5.Hydraulic system: It is the power system in the gland vacuum freeze dryer. It is mainly used to press the stopper of the vial into the mouth of the bottle at the end of the drying.
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