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DC Compressor [2010-02-06]

DC Compressor

Diaphragm compressors

A diaphragm compressor (also known as a membrane compressor) is a variant of the conventional reciprocating compressor. The compression of gas occurs by the movement of a flexible membrane, instead of an intake element. The back and forth movement of the membrane is driven by a rod and a crankshaft mechanism. Only the membrane and the compressor box come in contact with the gas being compressed.

 

Diaphragm compressors are used for hydrogen and compressed natural gas as well as in a number of other applications.

 

A three-stage diaphragm compressor The photograph included in this section depicts a three-stage diaphragm compressor used to compress hydrogen gas to 6,000 psi for use in a prototype compressed hydrogen and compressed natural gas fueling station built in downtown Phoenix, Arizona by the Arizona Public Service company. Reciprocating compressor were used to compress the natural gas.

 

The prototype alternative fueling station was built in compliance with all of the prevailing safety, environmental and building codes in Phoenix to demonstrate that such fueling stations could be built in urban areas.

 

Reciprocating compressor

A reciprocating compressor or dc compressor is a positive-displacement compressor that uses pistons driven by a crankshaft to deliver gases at high pressure.

 

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. We can categorize reciprocating compressors into many types and for many applications. Primarily, it is used in a great many industries, including oil refineries, gas pipelines, chemical plants, natural gas processing plants and refrigeration plants. One specialty application is the blowing of plastic bottles made of Polyethylene Terephthalate.