Air Compressors

The purpose of an air compressor system is simple: to pressurize air to a certain level and deliver it in a steady stream. This pressurized air is typically used to power tools and machines or perform certain industrial processes, such as petroleum coking, among many others. The size and configuration of the compressor will determine how you can use it. Quincy manufactures and sells the following types of air compressor systems:

  • Rotary screw: Rotary screw machines are a type of positive displacement compressor that feature a pair of matched helical screws. These screws drive air into a special chamber while at the same time shrinking the size of that chamber, forcing the air to compress.
  • Reciprocating/piston: Reciprocating compressors are another type of positive displacement machine. Unlike rotary screw compressors, they compress air by using a series of one-way valves to introduce it into a chamber, where the constant motion of a series of pistons compresses it.
  • Oil-free Scroll: Both reciprocating and rotary screw compressors require lubrication to keep valves and pistons moving. The drawback of this design is that it has the potential to introduce contamination into the system and can lead to increased maintenance requirements. Oil-free compressors are specially designed to meet the working requirements of clean environments, such as pharmaceutical plants and food and beverage manufacturing facilities.

Compressed Air Dryer

Compressed air dryer are specifically designed to remove the water that is inherent in compressed air. The process of compressing air increases water vapor, so the compressed air is 100% relative humidity. Therefore, it is desirable to remove condensing moisture from the air stream to prevent damage to equipment, air tools. The function of removing this unwanted water is the purview of the compressed air dryer.

Water contamination is an inherent byproduct of compressing atmospheric air. Because of this phenomenon, compressed air systems usually benefit from the addition of a compressed air dryer located on the output of the air compressor and/or at various locations throughout the distribution system. In most cases, the output of the compressor is processed through a primary dryer or system dryer. In cases where higher quality air is required the output of the primary dryer is further processed through a secondary dryer or polishing dryer.

There are may kind of air dryers. These dryer generally are Refrigerated dryers and desiccant dryers. Their performance characteristics is dew point expressed as a temperature, (sometimes referred to as Pressure Dew Point.)

Refrigerated dryers

Refrigerated dryers are the most common type of compressed air dryer. They remove water from the air stream by cooling the air to approximately 38 °F (about 3.4 °C) and effectively condensing out the moisture in a controlled environment. 38 °F (about 3.4 °C) is the realistic lower limit for a refrigerated dryer because a lower temperature runs the risk of freezing the separated water. They are typically specified as primary dryers and generally produce air quality that is appropriate for approximately 95% of all compressed air applications.

Desiccant dryer

Desiccant dryers, sometimes referred to as absorption dryers. Desiccant dryers are best applied in a second stage. They are usually used from a refrigerated dryer. They have two options dew point that -40° C or -70° C. So that is appropriate for electricity, electronic, pharmaceutical industry, medical equipment, food industry…

Air Filter

Air filters are set up on the main compressed air system. They prevent harmful debris, dirt and contaminants from air tools, air equipment,… There are 3 or 4 levels of filter.

Air Receiver Tank

An air receiver tank is an integral and important part of any compressed air system. Typically a receiver tank is sized at 6-10 times the flow rate of the system. So, if a compressor has a rating of 25 scfm at 100 psig, the receiver tank should be 150 cubic feet, minimum. In a compressed air system, a receiver tank provides the following benefits:

  1. The receiver tank acts as a reservoir of compressed air for peak demands.
  2. The receiver tank will help remove water from the system by allowing the air a chance to cool.
  3. The receiver tank minimizes pulsation in the system caused by a reciprocating compressor or a cyclic process downstream.

That are equitment in air compressor system