Refrigerated air dryer are essential tools in everyday life. A refrigerated air dryer uses a refrigeration system to cool compressed air, which makes the moisture in the air condense and drain out. In an air-to-air heat exchanger, the cool, dry air that comes from the dryer is used to cool the dirty air that comes into the dryer. Next, it will go into the air-to-refrigerant heat exchanger, which will cool it even more.
This article will discuss how refrigerated air dryer work, what they can do for you, and when you should use one. We will also talk about a big change in refrigerated air dryer technology that happened not too long ago.
Why Do We Need Refrigerated Air Dryers?
Why should you have an air dryer? Because when compressed air leaves a compressor, it is full of water, dust or dirt, and small amounts of oil. Before the air is pushed into a smaller space, these pollutants are already in the air. Some are added during the compression process. These contaminants can hurt the air system, pneumatic tools, and final products.
The compressor, air motors, and valves can all be broken by moisture. It could also make the product dirty and make people sick. It can cause corrosion, line freezing, and the growth of microorganisms, all of which are bad. A dryer gets rid of this moisture and the dangers it brings.
Better Than Thermal Mass
Thermal mass, or cycling, is an old way to save energy that helps refrigerated air dryers use energy more efficiently. A thermal mass air dryer has cycles where it works at full capacity and cools the air with a thermal mass. This is better than dryers that only have one speed. However, cycle dryers need energy to cool down their thermal mass, which removes the energy they save.
Changes in the Dew Point
One of the best things about a refrigerated air dryer is that it can be air-dried to a stable dew point even if the temperature of the air around it changes. With a thermal mass dryer, the fixed-speed refrigerant compressor starts or stops depending on the dew point of the compressed air. The dew point goes up and down because of this. This change can make the air two purity classes less clean. Refrigerated air dryers always give you air that has been dried to a stable dew point and meets ISO 8573-1 Class 4 purity standards. They also use less energy to do this.
For systems that use cold air to dry the air to work well, the air must be dry. This means the air cannot contain any liquid water and must have a low relative humidity before entering the air network. There are different ways to get rid of the moisture in compressed air, which helps keep the air quality high. A refrigerated air dryer is one of the most common pieces of machinery used to dry compressed air. It can either not cycle or have a drive with different speeds.