E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/12 (2006.01) F04D 29/04 (2006.01) F16C 39/06 (2006.01)
Patent
CA 2624785
An apparatus for controlling the supply of barrier gas to a compressor module comprising a pressure housing (3) containing an electric motor (1) which via a shaft (8) is drivably connected to a compressor (2). The shaft (8) is supported by magnetic bearings (11, 21) and at least one axial seal (31) around the shaft (8) which divides the pressure housing into a first compartment (10) comprising the motor (1) and a second compartment (20) comprising the compressor (2), the second compartment (20) comprising an inlet (4) and an outlet (5) for fluid that is to be compressed. A line (7) is fluid- connected to the first compartment (10) for the supply of barrier gas from a reservoir (6), and there is a flow restriction means (71) in the line between the reservoir (6) and the first compartment (10). The apparatus facilitates a method for controlling the supply of barrier gas on the basis of required barrier gas velocity (vg) through the seal (31; 32) and the pressure (ps) in the second compartment (20). An overpressure (pa) can be set in the reservoir (6) and a controlled supply of barrier gas to at least the first (10) compartment is effected with the aid of the flow restriction (71; 71') in the feed pipe (7; 7').
La présente invention concerne un appareil de commande de l~alimentation en gaz barrière d~un module de compresseur, comprenant un carter sous pression (3) contenant un moteur électrique (1) relié par entraînement via un arbre (8) à un compresseur (2). L~arbre (8) est soutenu par des paliers magnétiques (11, 21) et au moins un joint de roulement axial (31) autour de l~arbre (8) qui sépare le carter sous pression en un premier compartiment (10) comprenant le moteur (1) et un second compartiment (20) comprenant le compresseur (2), le second compartiment (20) comprenant un orifice d~admission (4) et un orifice de refoulement (5) pour le fluide à compresser. Une conduite (7) est en communication fluidique avec le premier compartiment (10) pour l~alimentation en gaz barrière d~un réservoir (6) et un mécanisme de réduction du débit (71) est disposé dans la conduite entre le réservoir (6) et le premier compartiment (10). Ledit appareil facilite un procédé de commande de l~alimentation en gaz barrière sur la base de la vitesse de gaz barrière nécessaire (vg) à travers le joint de roulement (31; 32) et de la pression (ps) dans le second compartiment (20). Une surpression (pa) peut être établie dans le réservoir (6) et une alimentation commandée en gaz barrière du premier compartiment (10) au moins est obtenue à l~aide de la réduction du débit (71; 71') dans le tuyau d~alimentation (7; 7').
Grynning Audun
Skofteland Hakon
Stinessen Kjell Olav
Aker Kvaerner Subsea As
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
LandOfFree
Apparatus and method for controlling supply of barrier gas... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for controlling supply of barrier gas..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for controlling supply of barrier gas... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1465633