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Reciprocating compressors running together—Is that a problem?

03.01.2014  |  Knight, C.,  KnightHawk Engineering, Inc. , Houston, Texas

Keywords: [compressor] [pulsation] [piping] [acoustical vibration]

A new maintenance engineer is assigned the task of overseeing large, critical rotating equipment in a petrochemical facility (Fig. 1). In this example, the facility has vent-gas compressors that, in general, run well, but sometimes fail. This system has three compressors operating in parallel. However, the associated piping is less than an optimum design, and, unfortunately, it looks like an afterthought for both the suction and discharge sections.

 
  Fig. 1.  Ethylene compressor deck.



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