Why is it Important to Dry 30hp Compressed Air Dryer?
All atmospheric air contains some amount of water vapor. Now, consider the atmosphere as a giant, slightly wet, spunge. If we squeese that spunge very hard, the water absorbed will drip out. The same happens when air is compressed, which means the water concentration will increase. To avoid future problems in the 30hp compressed air dryer system, the wet air needs to be treated. This takes place using an aftercooler and drying equipment.
Why and how do we dry 30hp compressed air dryer?
Atmospheric air contains more water vapor at high temperatures and less at lower temperatures. This has an effect on the water concentration when the air is compressed. For example, a compressor with a working pressure of 7 bar and a capacity of 200 l/s that compresses air at 20˚C with a relative humidity of 80% will release 10 liters/hour of water in the 30hp compressed air dryer line. Problems and disturbances can occur due to water precipitation in the pipes and connected equipment. To avoid this, the 30hp compressed air dryer must be dried.
What is pressure dew point?
The term "pressure dew point" (PDP) is used to describe the water content in the 30hp compressed air dryer. It is the temperature at which water vapor condenses into water at the current working pressure. Low PDP values indicate small amounts of water vapor in the 30hp compressed air dryer. It is important to remember that atmospheric dew point can not be compared with PDP when comparing different dryers. For example, a PDP of +2˚C at 7 bar is equivalent to –23˚C at atmospheric pressure. To use a filter to remove moisture (lower the dew point) does not work. This is because further cooling leads to continued precipitation of condensation water. You can select the main type of drying equipment based on the pressure dew point. When taking cost into account, the lower the dew point required, the higher the investment and operating costs for air drying. Five techniques exist for removing the moisture from 30hp compressed air dryer: cooling plus separation, over-compression, membranes, absorption and adsorption drying.
This article comes from atlascopco edit released
Why and how do we dry 30hp compressed air dryer?
Atmospheric air contains more water vapor at high temperatures and less at lower temperatures. This has an effect on the water concentration when the air is compressed. For example, a compressor with a working pressure of 7 bar and a capacity of 200 l/s that compresses air at 20˚C with a relative humidity of 80% will release 10 liters/hour of water in the 30hp compressed air dryer line. Problems and disturbances can occur due to water precipitation in the pipes and connected equipment. To avoid this, the 30hp compressed air dryer must be dried.
What is pressure dew point?
The term "pressure dew point" (PDP) is used to describe the water content in the 30hp compressed air dryer. It is the temperature at which water vapor condenses into water at the current working pressure. Low PDP values indicate small amounts of water vapor in the 30hp compressed air dryer. It is important to remember that atmospheric dew point can not be compared with PDP when comparing different dryers. For example, a PDP of +2˚C at 7 bar is equivalent to –23˚C at atmospheric pressure. To use a filter to remove moisture (lower the dew point) does not work. This is because further cooling leads to continued precipitation of condensation water. You can select the main type of drying equipment based on the pressure dew point. When taking cost into account, the lower the dew point required, the higher the investment and operating costs for air drying. Five techniques exist for removing the moisture from 30hp compressed air dryer: cooling plus separation, over-compression, membranes, absorption and adsorption drying.
This article comes from atlascopco edit released
Specializes in the manufacture and production of compressed air purification equipment.