EP 2288811 A2 20110302 - DEVICE AND METHOD FOR PUMPING A CRYOGENIC FLUID
Title (en)
DEVICE AND METHOD FOR PUMPING A CRYOGENIC FLUID
Title (de)
VORRICHTUNG UND VERFAHREN ZUM PUMPEN EINER KRYOGENEN FLÜSSIGKEIT
Title (fr)
DISPOSITIF ET PROCÉDÉ DE POMPAGE D'UN FLUIDE CRYOGÉNIQUE
Publication
Application
Priority
- FR 2009050844 W 20090507
- FR 0853168 A 20080516
Abstract (en)
[origin: WO2009150337A2] The invention relates to a device for pumping a cryogenic fluid, consisting of a tank (1) for storing a cryogenic fluid containing cryogenic liquid, a cryogenic pump (3) having an inlet pressure loss (net positive suction head, NPSH), and a suction line (2) connecting the tank (1) to the pump (3), said pumping device including a system (9, 18, 19) for controlling the pressure in the tank (1) for selectively maintaining said pressure at least equal to the saturation pressure of the stored cryogenic fluid plus the inlet pressure loss (NPSH) of the cryogenic pump and optionally plus the value of the pressure losses owing to the pipes forming the suction line (2) connecting the tank (1) to the pump (3). The invention is characterised in that the pressure-control system (9, 18, 19) includes a duct (9) connecting a high-pressure outlet of the pump (3) to the tank (1) for selectively returning the pumped cold fluid to the tank (1), said duct (9) including an expansion valve (99) for returning cold gas to the tank (1).
IPC 8 full level
F04B 15/08 (2006.01); F04B 23/02 (2006.01); F04B 49/06 (2006.01); F04D 13/16 (2006.01); F04D 15/00 (2006.01); F04D 29/66 (2006.01)
CPC (source: EP US)
F04B 15/08 (2013.01 - EP US); F04B 23/02 (2013.01 - EP US); F04B 2205/01 (2013.01 - EP US)
Citation (search report)
See references of WO 2009150337A2
Designated contracting state (EPC)
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 SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
FR 2931213 A1 20091120; AT E545784 T1 20120315; CN 102027236 A 20110420; CN 102027236 B 20131113; EP 2288811 A2 20110302; EP 2288811 B1 20120215; JP 2011521180 A 20110721; JP 5313338 B2 20131009; US 2011070103 A1 20110324; US 9546645 B2 20170117; WO 2009150337 A2 20091217; WO 2009150337 A3 20100218
DOCDB simple family (application)
FR 0853168 A 20080516; AT 09761888 T 20090507; CN 200980117479 A 20090507; EP 09761888 A 20090507; FR 2009050844 W 20090507; JP 2011508977 A 20090507; US 99300909 A 20090507