EP 3904690 B1 20231220 - MULTISTAGE CENTRIFUGAL COMPRESSOR WITH AN ANTI-SURGE SYSTEM AND CONTROL METHOD THEREFOR
Title (en)
MULTISTAGE CENTRIFUGAL COMPRESSOR WITH AN ANTI-SURGE SYSTEM AND CONTROL METHOD THEREFOR
Title (de)
MEHRSTUFIGER ZENTRIFUGALVERDICHTER MIT PUMPSCHUTZSYSTEM UND STEUERUNGSVERFAHREN DAFÜR
Title (fr)
COMPRESSEUR CENTRIFUGE À PLUSIEURS ÉTAGES AVEC SYSTÈME ANTI-POMPAGE ET PROCÉDÉ DE COMMANDE ASSOCIÉ
Publication
Application
Priority
CN 202010346052 A 20200427
Abstract (en)
[origin: EP3904690A1] An anti-surge system for a centrifugal compressor, the centrifugal compressor including first to Nth compression stages (C1, C2, C3, C4), and an intermediate gas extraction pipeline (IA/PA) being disposed between an (M-1)th compression stage and an Mth compression stage, wherein N is an integer ≥ 2, and M is an integer ≤ N, comprises: a first throttle device (Fa); a first pressure sensor (Pa); a first temperature sensor (Ta; a second pressure sensor (Pb); a second throttle device (Fb); a second temperature sensor (Tb); a third pressure sensor (Pc); a branch pipeline (Bp); an anti-surge backflow valve (ASV); and a control system, comprising a first anti-surge controller (ASC1), a second anti-surge controller (ASC2) and a selector (HY).
IPC 8 full level
F04D 17/12 (2006.01); F04D 27/02 (2006.01)
CPC (source: CN EP)
F04D 17/12 (2013.01 - EP); F04D 27/0215 (2013.01 - CN EP); F04D 27/0223 (2013.01 - CN EP); F05D 2270/3011 (2013.01 - CN); F05D 2270/3013 (2013.01 - CN); F05D 2270/3015 (2013.01 - EP); F05D 2270/303 (2013.01 - CN EP); F05D 2270/3061 (2013.01 - CN EP)
Citation (examination)
US 2013045079 A1 20130221 - FLETCHER PAUL [GB], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3904690 A1 20211103; EP 3904690 B1 20231220; CN 111322265 A 20200623; CN 111322265 B 20220211
DOCDB simple family (application)
EP 21168518 A 20210415; CN 202010346052 A 20200427