Reciprocating compressor

Device used to pump gases at high pressure

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A reciprocating compressor or piston compressor is a positive-displacement compressor that uses pistons driven by a crankshaft to deliver gases at high pressure.[1][2] Pressures of up to 5,000 psig are commonly produced by multistage reciprocating compressors.

The intake gas enters the suction manifold, then flows into the compression cylinder where it gets compressed by a piston driven in a reciprocating motion via a crankshaft, and is then discharged. Applications include railway and road vehicle air brake systems oil refineries, gas pipelines, oil and gas production drilling and well services, air and nitrogen injection, offshore platforms, chemical plants, natural gas processing plants, air conditioning, and refrigeration plants. One specialty application is the blowing of plastic bottles made of polyethylene terephthalate (PET).

In the ionic liquid piston compressor many seals and bearings were removed in the design as the ionic liquid does not mix with the gas. Service life is about 10 times longer than a regular diaphragm compressor with reduced maintenance during use, energy costs are reduced by as much as 20%. The heat exchangers that are used in a normal piston compressor are removed as the heat is removed in the cylinder itself where it is generated. Almost 100% of the energy going into the process is being used with little energy wasted as reject heat.[3]

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There are various types of reciprocating compressors suitable for different needs and purposes - use our product selector to filter our range until you find your ideal product.

Notice how reciprocating compressors have very high maximum discharge pressure?

And here are some other things to consider to buying a reciprocating compressor:

• Do you need to produce clean air, dry air, or oil free air?
• How many hours per year will you be running the compressor?
• Will the compressor be running constantly during the day or will there be shifts?
• Does your air compressor demand fluctuate throughout the day?
• Will you be expanding soon? Will your requirements change in the near future?

It also depends on who&#;s making the purchase decision too.

At times engineers are required to make judgement calls based on what is best for the overall project not and just for the specific application of the compressor.

They may be constrained by technical, commercial and scheduling factors, as well as &#;off design&#; conditions and practical future expectations.

Here are some non-technical things to consider:

• Operating conditions (present and future)
• Quality of the equipment brand
• Available skills for maintenance
• Staff&#;s familiarity with the machine
• Automation and digital controls
• Availability of parts
• Delivery time
• Price and the Life-Cycle Cost

As you can tell by now there&#;s A LOT that goes into picking the right reciprocating compressor.

And it starts by knowing what your exact needs are or where your inefficiencies are.

That's why we recommend consulting with an Atlas Copco expert who can either guide you over or , or run a FREE energy efficiency audit at your site.

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