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Working principle of China's best freeze dryer
- Apr 25, 2017 -

   Chinese best freeze dryer is according to the principle of refrigeration dehumidification, the compressed air is forced through the heat exchange and cooling evaporator, the compressed air in the gaseous water and oil by isobaric cooling to condense into liquid water and oil, and entrained dust discharged through the automatic drainage device outside the machine, so as to obtain a machine clean compressed air. The utility model is composed of a refrigerating system, a vacuum system, a heating system and an electrical instrument control system. The main components of the drying box, condenser, chiller, vacuum pump, heating / cooling devices, etc..

The working principle of Chinese best freeze dryer:

 Compressed air water vapor content is determined by the temperature of the compressed air in the compressed air pressure: keep unchanged, reduce the temperature of the compressed air can reduce the compressed air in the water vapor content, and the excess water vapor condenses into liquid. Freeze drying machine is to use this principle to use refrigeration technology to dry compressed air. Therefore, the cold dryer has the refrigeration system. GREE freeze dryer principle

The refrigeration system China best freeze dryer belongs to the refrigeration, composed of refrigeration compressor, condenser, evaporator, expansion valve and the four basic components. They are connected by pipes to form a closed system, the refrigerant circulating in the system, changing the state and exchanging heat with the compressed air and the cooling medium.

Refrigeration compressor evaporator inner low pressure (low temperature) refrigerant sucked into a compressor cylinder, the refrigerant vapor is compressed, while at elevated pressure and temperature; high temperature and high pressure refrigerant vapor is pressed to the condenser, the condenser, refrigerant vapor and temperature of high temperature low cooling water and air by the heat exchanger, the heat of refrigerant by water or air to take and condensed refrigerant vapor into liquid. This liquid is conveyed to the expansion valve, the expansion valve to the low temperature and low pressure liquid into the evaporator and the liquid refrigerant in the evaporator; low temperature, low pressure absorption of compressed air and heat of vaporization (commonly known as the "evaporation"), and the compressed air after cooling the condensed liquid and large water; refrigerant steam evaporator the compressor is sucked, so that the refrigerant in the system after compression, condensation, evaporation, throttle four process, to complete a cycle.

In refrigeration system Chinese best freeze dryer, the evaporator is conveying cooling equipment, the refrigerant absorbs heat of the compressed air in the realization of the goal of dehydration and drying. The compressor is the heart, which plays the role of inhalation, compression and delivery of refrigerant vapor. The condenser is a device that releases heat. The heat absorbed in the evaporator is transferred to the cooling medium (such as water or air) with the heat transferred from the compressor input power. Expansion valve / throttle valve for refrigerant throttling pressure, while controlling and regulating the amount of liquid refrigerant into the evaporator, and the system is divided into high pressure and low pressure side of the two most.

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        E-mail: sxrc04@roctec-lab.com