Refrigerated air dryers are machines that help clean and dry the air in compressed air systems by removing dirt and water. They make the air colder which makes the water come out of it. The air without moisture is warmed up again and sent to where it's needed.
Refrigerated air dryers work like this:
The compressed air gets cold using water to lower its temperature to about 38°C to 45°C. This is an important step because compressed air has a lot of wetness and dirt that can make issues later in the system.
Before using, the air is made cold by a machine that makes it around 3 to 5 degrees Celsius. The refrigerator works by squeezing gas, cooling it down, and turning it into cool air. This happens over and over again to keep things inside the fridge cool.
Moisture is taken out: Air gets cold and squished, then goes into a place where water from the air turns into little drops. A machine called a drain trap takes out wet drops from the air. It also gets rid of the extra water that forms inside the machine.
After separating from the water, the dry compressed air gets warmed up by the hot incoming air in a device called a heat exchanger. The heat exchanger makes air that's coming in cooler and air that's going out hotter by putting the two air streams close together. It's designed to work efficiently.
Before compressed air is used, it goes through a final filter to make sure it is clean. This machine takes out anything that might still be dirty in the air, like oil, dust, and other tiny particles.
The cooler in a cold air dryer is very important for how the system works. The fridge has different parts, like the compressor, condenser, evaporator, and expansion valve. The machine squeezes the gas and sends it to a cooler to make it cold. The cold gas goes into the evaporator and makes the compressed air colder by getting bigger and cooler. Lastly, the cold air gas goes back to the compressor using the expansion valve, and the process begins anew.
Refrigerated air dryers remove moisture and impurities from compressed air by cooling it down and making it condense. The machine that cools down the squeezed air is really important. It works by using a special method called vapor compression cycle. The air without moisture is warmed up again and made clean before being sent to where it will be used. Cool air dryers are often used in various businesses, such as food and drink, medicine, and electronics, to make sure the air they use is free from moisture and dirt.
Lingyu Machinery - 2~10C dew point refrigerated compressed air dryer
