What is the purpose of the air receiver and nitrogen storage vessel?
A PSA Nitrogen Generator is a two-bed absorption system and therefore, has an interrupted air demand to the system when air is diverted from one bed to another. An air surge tank located downstream of the air compressor and upstream of the PSA unit is required in order to smooth out surges in air demand. Membrane systems on the other hand, have a smooth constant demand for air and, otherwise do not necessarily require an air receiver. However, we highly recommend this vessel to accommodate air surges caused by starting and stopping the system. Again, PSA systems require a nitrogen storage vessel in order to insure a smooth product delivery. Membrane systems do not require as large a nitrogen storage vessel, but is still recommended to prevent the system from starting and stopping frequently.
