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1. (WO2017149081) SEALING MECHANISM FOR THE VOLUTE OF A PUMP IN THE MAIN CIRCUIT OF A NUCLEAR POWER PLANT
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Pub. No.: WO/2017/149081 International Application No.: PCT/EP2017/054924
Publication Date: 08.09.2017 International Filing Date: 02.03.2017
IPC:
F04D 7/08 (2006.01) ,F04D 29/14 (2006.01) ,G21C 15/243 (2006.01) ,G21C 13/06 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
D
NON-POSITIVE-DISPLACEMENT PUMPS
7
Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
02
of centrifugal type
08
the fluids being radioactive
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
D
NON-POSITIVE-DISPLACEMENT PUMPS
29
Details, component parts, or accessories
08
Sealings
10
Shaft sealings
14
operative only when pump is inoperative
G PHYSICS
21
NUCLEAR PHYSICS; NUCLEAR ENGINEERING
C
NUCLEAR REACTORS
15
Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
24
Promoting flow of the coolant
243
for liquids
G PHYSICS
21
NUCLEAR PHYSICS; NUCLEAR ENGINEERING
C
NUCLEAR REACTORS
13
Pressure vessels; Containment vessels; Containment in general
02
Details
06
Sealing-plugs
Applicants:
ELECTRICITE DE FRANCE [FR/FR]; 22-30, avenue de Wagram 75008 PARIS, FR
Inventors:
SZURCZEC, Laurent; FR
PRZYLECKI, Hugues; FR
FOUIN, Yann; FR
Agent:
REGIMBEAU; 20, rue de Chazelles 75847 PARIS CEDEX 17, FR
Priority Data:
165176302.03.2016FR
Title (EN) SEALING MECHANISM FOR THE VOLUTE OF A PUMP IN THE MAIN CIRCUIT OF A NUCLEAR POWER PLANT
(FR) OBTURATEUR POUR VOLUTE D'UNE POMPE D'UN CIRCUIT PRIMAIRE D'UNE CENTRALE NUCLÉAIRE
Abstract:
(EN) Mechanism (5) for sealing a volute (41) of a pump in a main circuit of a nuclear power plant, characterized in that said mechanism (5) comprises: - a disk (51) having attachment means (51c) that allow the mechanism (5) to be attached to the volute (41); - a central member (52) that projects from a first face (51a) of the disk (51); - an expandable joint (6) located about a contour (52a) of the central member (52) such that said expandable joint (6) forms a tight seal between the contour (52a) and the volute (41) when the mechanism (5) is mounted on the volute (41).
(FR) Dispositif (5) pour l'obturation d'une volute (41 ) d'une pompe d'un circuit primaire d'une centrale nucléaire caractérisé en ce qu'il comprend : - un disque (51 ) comprenant des moyens de fixation (51 c) adaptés pour permettre la fixation du dispositif (5) à la volute (41 ), - un corps central (52) faisant saillie d'une première face (51 a) du disque (51 ), - un joint gonflable (6) situé sur un contour (52a) du corps central (52), de sorte que ledit joint gonflable (6) forme une barrière étanche entre le contour (52a) et la volute (41 ) lorsque le dispositif (5) est monté sur la volute (41 ).
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)