Application Of Air Compressor Cooler in Freeze Dryer

Freeze dryer is a technical method that pre-freezes water-containing items, and then sublimates its moisture in a vacuum state to obtain dry items. The freeze-dried articles are easy to be stored for a long time, and can be restored to the state before freeze-drying and maintain the original biochemical properties after adding water.

Vacuum freeze-drying technology has a wide range of applications in the fields of bioengineering, pharmaceutical industry, food industry, material science and deep processing of agricultural and sideline products, and the scale and field are still expanding. To this end, vacuum freeze-drying will become an important application technology in the 21st century.

The freeze dryer is composed of a refrigeration system, a vacuum system, a heating system, and an electrical instrument control system. The main components are drying box, condenser, refrigeration unit, vacuum pump, heating/cooling device, air compressor cooler, etc.

The refrigeration system is the most important part of the freeze dryer and is called the "heart of the freeze dryer". Its refrigeration system is mainly composed of the following components: compressor, refrigerant, oil separator, water condenser, filter drier, air compressor cooler, sight glass, solenoid valve, hand valve (top cover valve), expansion valve , Evaporator (plate exchanger, back box condensing coil), vapor-liquid separator, return air filter, pressure gauge, pressure control relay, CPCE (energy regulator), safety valve, refrigeration pipeline, etc.