Air-Cooled Refrigeration Dryer

Refrigeration compressors using international advanced rotary, scroll or screw Hermetic compressor with stable operation, low noise, reliable performance, energy saving, long life and other advantages.
Heat exchangers, condensers made of high quality, efficient threaded pipe, heat transfer coefficient, which is small, compact body. Simplified material made of stainless steel or galvanized steel, compressed air can avoid secondary pollution. Electronic condensate drain fixed cycle emissions, thus ensuring a more reliable product gas dryness.
Control system uses proprietary technology, the use of advanced science and system configuration combined with microcomputer intelligent control can ensure affect equipment from ambient temperature and gas consumption and gas temperature, maintaining a constant low dew point conditions.
Features:
Low dew point, pressure dew point up to 2C ° ( pressure dew point up to -23C ° )
Proprietary technology uses steam separator systems than conventional separator system efficiency is greatly improved.
Reliable cooling configuration program to ensure changes in demand and changes in the amount of gas processing environment, ensuring that at high temperatures, high humidity climatic conditions Esquel reliability with proprietary control technology to ensure that each part of the system and the parameters of effective control in the best condition.
Integrated design, appearance, compact structure, easy installation.
How it works:
Workflow:
Working air-cooled compressed air dryer is divided into two processes: Air flow and refrigerant flow
Compressed air flow
Freeze dryer into the compressed air is dried, first into the precooler 1, the evaporator in this dried with low temperature heat exchanger 2 is cold, the enthalpy, temperature and moisture content decreased in the precooler pressure dew point of the compressed air to be dried has been reduced, but not to the drying requirements of the drying air is continued into the evaporator 2 is evaporated in heat exchange with the refrigerant, the temperature continues to decrease, the evaporator outlet temperature reaches the required pressure dew point. The evaporator into the air-water mixture liquid separator 3, a quick separation of the gas-liquid separator precipitated water, and then dry air enters the precooler 1, and enters the refrigerated dryer at a hot air by heat exchange to a temperature after the increase, the discharge freeze dryer.
Refrigerant flow
High temperature discharged refrigerant compressor 4, the high pressure refrigerant gas into the condenser 5, emit heat to the liquid condensate. A condenser, a low temperature liquid refrigerant through the throttle mechanism ( a capillary tube or an expansion valve ) down, cooling gas-liquid two-phase state enters the evaporator 2, the evaporator is heat-exchanged with the dry air and gasified. After the superheated gas evaporator, the refrigerant entering the compressor to the next cycle. Freeze-drying machine evaporator heat transfer surface temperature is below 0 ° C, will be frost on the heat exchanger surface, freezing and drying gas flow was affected, thereby affecting the freeze-drying machine would work, and therefore need to ensure evaporation exchanger surface temperatures above 0 ° C, it is necessary to control the evaporation temperature of the refrigerant can not be too low. Therefore, in the exhaust port to import the way off the compressor 4 of the evaporator 2, between the thermal expansion valve 7 is set to adjust the evaporation pressure. When the evaporation pressure is reduced to a certain extent, the expansion valve is turned on, high-temperature, high-pressure gas directly into the evaporator to maintain the temperature of the evaporator heat transfer surface is higher than 0 ° C.