Have you ever been interested in finding out what a compressed air receiver is and does? Air receivers are tanks filled with air that are suggested to be in all compressed air systems. These air receivers serve many purposes. They are often used to decrease wear and tear on a compression module, get rid of pulsations from a discharge line, separate moisture, give extra storage for compensating surges in compressed air usage, and to reduce energy costs. They are used by thousands of facilities and can be found in different forms, ranging in color, size, specialty, and more.
Control storage is an important function of a compressed air system. The main purpose of control storage is to optimize the effective operation of the compressor control. Essentially control storage is any storage generated between the onset of air compressor discharge and before any cleanup equipment. While control storage overlaps in its purpose with demand (dry) storage it differs in the location of the storage and its usefulness. Often, compressed air design systems manage to combine the key functions of both control and demand storage enhancing its effectiveness.
The fundamental reasons why control storage with reciprocating air compressors are used together in air systems are to reduce the pulsations from the compressor discharge, removing condensate through condensation and settling and removing short cycling of the compressor controls.
There are two different locations of air receivers, wet ones and dry ones. Wet receivers are great for additional storage and reducing moisture. Removing moisture in the system downgrades the load on filters and dryers. Wet receivers refer to a storage tank placed right after the compressor. Usually this type is used to help with reducing pulsation and pressure stabilization. On the other hand, dry receivers are good for when large air demands pop up unexpectedly. As for sizing, the size of an air receiver depends on air usage, as well as compressor style.
Installing air receivers can be a tough task, but with careful attention you can have yours working correctly. Wet receivers have to be installed opposite or downstream of the moisture separator. Dry receivers are often installed after purification equipment. Remember that every air receiver should be on a sturdy foundation to keep it safe, also allowing for space and preventing it from rusting. After installation, keep in mind that moisture should be drained often. Compressed air receivers allow the addition of receiver accessories and safety relief valves are required. Every receiver has a drain in order to eliminate any added up moisture, either manual or automatic.
The reliability of an air compressor system can benefit immensely from control storage provided it is properly assessed. Before purchasing an air receiver, make sure you check out the American Society of Mechanical Engineers for a specialized code regarding pressure vessels and compressed air receivers in general.