Double Acting Air Compressor

A single stage double acting air compressor of 150kw power takes air in at 16 bar delivers at 6 bar.

Double acting air compressor. With the higher pressures and air flows that are required the p e t. Bottle blowing market is a strong niche market for the double acting oil free reciprocating piston compressors. A single acting compressor will have an operating efficiency between 22 24 kw 100 cfm of air. In double acting air compressor air is admitted alternatively to both sides of the piston.

Determine the size of the cylinder. The compression follows the law pv 1 35 c. This gives you two compression cycles for every turn of the crankshaft. While at same time discharge stroke is in process at another end of the piston.

Piston speed 2ln 150m min. The air compressor technology used most prevalently for this application is the double acting oil free water cooled reciprocating air compressor. Double acting recips are some of the most efficient compressors ever built but they re not as common as they used to be. For a double acting piston design a compressor running at 1 200 rpm will generate a standing wave of 28 4 feet.

This double compression cycle is what makes this type of air compressor very efficient. In other words a shock load equivalent to the discharge pressure will be transmitted to any piping or machine connected to the discharge piping and located within twenty eight feet of the compressor. The double acting compressor compresses the air on both the up stroke and the down stroke of the piston doubling the capacity of a given cylinder size. In simple word we can say that suction compression took place on both ends of piston cylinder in double acting reciprocating air compressor.

Theoretically a double acting compressor will deliver twice the amount of compressed air compared to a single acting compressor of. Power p 150kw. In order to connect the piston in a double acting cylinder to an external mechanism such as a crank shaft a hole must be provided in one end of the cylinder for the piston rod and this is fitted with a gland or stuffing box to prevent escape of the working fluid. A double acting cylinder is a cylinder in which the working fluid acts alternately on both sides of the piston.

The compressor runs at 160rpm with average piston speed of 150 m min. When one side is performing the suction stroke the other side will be performing compression delivery of compressed air.