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1. (WO2018007509) COMPRESSOR ANTI-SURGE PROTECTION UNDER WET GAS CONDITIONS

Pub. No.:    WO/2018/007509    International Application No.:    PCT/EP2017/066909
Publication Date: Fri Jan 12 00:59:59 CET 2018 International Filing Date: Fri Jul 07 01:59:59 CEST 2017
IPC: F04D 27/02
F04D 31/00
Applicants: NUOVO PIGNONE TECNOLOGIE SRL
Inventors: GALEOTTI, Daniele
ROSSI, David
CACITTI, Alessio
Title: COMPRESSOR ANTI-SURGE PROTECTION UNDER WET GAS CONDITIONS
Abstract:
A method for anti-surge protection of a compressor (7) under wet gas conditions is described. The compressor comprises a suction side (7S) and a delivery side (7D). An anti-surge system is arranged between the delivery side and the suction side of the compressor. The method comprises the following steps: calculating a surge limit line in a compression ratio vs. corrected power diagram; determining a compressor operating point in said compression ratio vs. corrected power diagram; detecting a distance between the operating point and the surge limit line; acting on the anti-surge system of the compressor if the distance is below a minimum safety distance.