Vacuum dryer manufacturers analyze the amount of compressed water vapor in the dryer

The amount of water vapor in the compressed air is determined by the temperature of the compressed air: in the case of keeping the compressed air pressure basically constant, lowering the temperature of the compressed air can reduce the water vapor content in the compressed air, and the excess water vapor will condense into a liquid. The freeze dryer uses this principle to dry compressed air by refrigeration technology. Therefore, the cold dryer has a refrigeration system.

The refrigeration system of the freeze dryer belongs to compression refrigeration and consists of four basic components: refrigeration compressor, condenser, evaporator, and expansion valve. They are connected in turn by pipes to form a closed system. The refrigerant circulates continuously in the system, changes state and exchanges heat with compressed air and cooling medium. Compressed air dryers also include adsorption dryers and dissolution dryers.

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