COMPRESSOR TRAIN START-UP USING VARIABLE INLET GUIDE VANES

A method for operating start-up of a compressor train is disclosed. The train includes a driver machine and at least a centrifugal compressor drivingly coupled to the driver machine. The centrifugal compressor in turn includes a plurality of compressor stages and at least a first set of variable inl...

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Bibliographische Detailangaben
Hauptverfasser: BALDASSARRE, Leonardo, PELAGOTTI, Antonio, PELELLA, Marco, BALDANZINI, Fabio, MARCUCCI, Nicola
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A method for operating start-up of a compressor train is disclosed. The train includes a driver machine and at least a centrifugal compressor drivingly coupled to the driver machine. The centrifugal compressor in turn includes a plurality of compressor stages and at least a first set of variable inlet guide vanes at an inlet of one of the compressor stages. The method includes at least partly closing the first set of variable inlet guide vanes; when the first set of variable inlet guide vanes is at least partly closed, starting rotation of the centrifugal compressor and accelerating the centrifugal compressor up to a minimum operating speed; opening the at least one set of variable inlet guide vanes to increase the gas flow through the centrifugal compressor once the minimum operating speed has been achieved.