How Desiccant Based Dry air generators works?

In the dry air generators desiccant use as drying element that’s system is also called as desiccant dryer system. Let us see how desiccant based dry air generators works.

A desiccant dryer use chemical called desiccant to remove moister from compress gas. Too commonly use desiccant is silica gel and activated alumina.

Desiccant is contented into two tanks drier also has a gas inlet, a gas outlet, a waste gas outlet, two heating coils, two devices that is known as for way or reversing valves. At any particular time one of the two tanks is set to be active and active tank contain dry desiccant that is used to remove moister from compressed gas. In the other tank desiccant is being dry and regenerated. There dry air mechanism setup each tank either be active tank or regeneration tank depend on the position of for way valves.

Desiccant in the active tank remove moister from the gas that flow through it. Most of the dry gas leaves to drier through the gas outlet however a portion of the dry gas is route to the regeneration tank to help dry the desiccant in that tank. The heating coil in the regeneration tank is energize to heat the gas that passes to the tank. The hot gas makes dry desiccant in the tank. There gas that leaves regeneration tank through the waste gas outlet is make the regeneration tank moister free and make it ready to perform as main tank.

Switching back and forth between tanks is often control by timer.  After one tank is been regenerated for period of time, the timer changes the position of the for way valves. This way the desiccant that was regenerated used to dry the gas, while the desiccant that used to dry the gas is regenerate.

Compressed gas that is clean and dry usually stored until it is needed in the facility. Typically container called receivers that used for this purpose. Receivers are large tanks that stores compressed gas, so the compressors don’t have to operator regularly. That’s all a dry air generators works.