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1. EP3113187 - SEALED CABLE INLET THROUGH AN EXTERNAL AND AN INTERNAL WALL OF A CONTAINMENT SHELL OF A NUCLEAR POWER STATION

Office
European Patent Office
Application Number 15754412
Application Date 17.02.2015
Publication Number 3113187
Publication Date 04.01.2017
Publication Kind A4
IPC
G21C 13/036
GPHYSICS
21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
CNUCLEAR REACTORS
13Pressure vessels; Containment vessels; Containment in general
02Details
032Joints between tubes and vessel walls, e.g. taking into account thermal stresses
036the tube passing through the vessel wall, i.e. continuing on both sides of the wall
G21C 13/04
GPHYSICS
21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
CNUCLEAR REACTORS
13Pressure vessels; Containment vessels; Containment in general
02Details
04Arrangements for expansion and contraction
G21C 17/116
GPHYSICS
21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
CNUCLEAR REACTORS
17Monitoring; Testing
10Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
116Passages or insulators, e.g. for electric cables
H02G 3/22
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
3Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
22Installations of cables or lines through walls, floors, or ceilings, e.g. into buildings
CPC
G21C 13/04
GPHYSICS
21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
CNUCLEAR REACTORS
13Pressure vessels; Containment vessels; Containment in general
02Details
04Arrangements for expansion and contraction
H02G 3/22
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
3Installations of electric cables or lines in or on buildings, equivalent structures or vehicles
22Arrangements for leading cables or lines through walls, floors, or ceilings, e.g. into building
G21C 17/116
GPHYSICS
21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
CNUCLEAR REACTORS
17Monitoring; Testing
10Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
116Passages or insulators, e.g. for electric cables
G21C 13/036
GPHYSICS
21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
CNUCLEAR REACTORS
13Pressure vessels; Containment vessels; Containment in general
02Details
032Joints between tubes and vessel walls, e.g. taking into account thermal stresses
036the tube passing through the vessel wall, i.e. continuing on both sides of the wall
Y02E 30/30
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
30Energy generation of nuclear origin
30Nuclear fission reactors
G21C 13/028
GPHYSICS
21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
CNUCLEAR REACTORS
13Pressure vessels; Containment vessels; Containment in general
02Details
028Seals, e.g. for pressure vessels or containment vessels
Applicants JOINT STOCK COMPANY ATOMENERGOPROEKT
Inventors MUSTAFIN MARAT RENADOVICH
GERASIMENKO ALEKSANDR GRIGORYEVICH
TSAPALIKOV VALENTIN IVANOVICH
IVANOV NIKOLAI ANATOLYEVICH
NOVIKOV GENNADY ALEKSEEVICH
TIKHOMIROV ARNOLD BORISOVICH
KHAUSTOV IVAN MIKHAILOVICH
Designated States
Priority Data 2014107111 26.02.2014 RU
Title
(DE) ABGEDICHTETE KABELEINFÜHRUNG ÜBER EINER EXTERNEN UND EINER INNENWAND EINES SICHERHEITSBEHÄLTERS EINER KERNKRAFTANLAGE
(EN) SEALED CABLE INLET THROUGH AN EXTERNAL AND AN INTERNAL WALL OF A CONTAINMENT SHELL OF A NUCLEAR POWER STATION
(FR) ENTRÉE ÉTANCHE À TRAVERS LES PAROIS EXTERNE ET INTERNE DE LA ZONE DE L'ENVELOPPE DE PROTECTION DE CENTRALES NUCLÉAIRES
Abstract
(EN) The invention relates to electrical engineering namely to sealed inputs of electric circuits into the confinement area of multi-layer nuclear power plant containment. The development can be used in penetrations through external and internal walls subjected to relative mutual displacement due to seismic events or thermal expansion of walls and penetrations. The purpose of this invention is to improve operating reliability of the sealed cable input if hard-bending high-voltage electrical conductors are used. This purpose is achieved by the sealed cable input through external and internal walls of the nuclear power plant containment containing an embedded connection pipe 3 inside internal wall 1 with internally and rigidly fixed cable 2 input 44. Compensation means for relative motion of cable 2 and external wall 11 are located in line with connection pipe 3 inside external wall 11. Compensation means are equipped with pipe 19 with bellows 24 on external end 20 and the second similar bellows 25 located symmetrically on the opposite end 21 of pipe 19 near internal surface 18 of external wall 11. Loose ends 30 and 31 of both bellows 24 and 25 are tapered, their internal surfaces 28 and 29 are supporting cable 2 output 46 freely installed in pipe 19 with gap 47 in relation to internal surface 49 of pipe 19. Gap 47 between braiding 48 over the external surface of cable 2 and internal surface 49 of pipe 19 is selected based on the calculations. Gap 47 shall be at least equal to the maximum orthographic thermal and seismic planar motion of internal wall 1 in relation to external wall 11 and the change of cable 2 coaxial position in pipe 19. 1 independent claim, 5 dependent claims, 3 figures.
(FR) L'invention se rapporte au domaine de l'électrotechnique et concerne notamment des entrées étanches de circuits électriques dans la zone étanche d'une protection multicouches de centrales nucléaires. L'invention peut être utilisée pour la pénétration des parois externe et interne ayant subi un déplacement réciproque suite à un phénomène sismique ou à la dilatation thermique des parois et de la zone de pénétration. L'invention vise à améliorer la fiabilité de fonctionnement d'une entrée de câble étanche lors de l'utilisation de conducteurs à haute tension à flexibilité limitée. Le but visé est réalisé en ce que l'entrée de câble étanche à travers les parois de protection externe et interne de l'enveloppe de protection d'une centrale nucléaire comprend une tubulure rapportée (3) disposée dans la paroi interne (1) avec une section interne (44) ménagée à l'intérieur du câble (2). On monte coaxialement à la tubulure (3), dans la paroi externe (11), un moyen pour compenser le mouvement réciproque du câble (2) et de la paroi externe (11). Le moyen de compensation comporte un conduit (19) avec un soufflet (24) sur l'extrémité externe (20) et un deuxième soufflet analogue (25) disposé symétrique sur l'extrémité opposée (21) du conduit (19) à la surface interne (18) de la paroi externe (11). Les extrémités libres (30) et (31) des deux soufflets (24) et (25) sont coniques, et leurs surfaces internes (28) et (29) constituent des éléments d'appui pour une section de sortie (46) du câble (2) qui est disposé librement dans le conduit (19) avec un interstice (47) par rapport à la surface interne (49) du conduit (19). L'interstice (47) entre l'enroulement (48) à la surface externe du câble (2) et la surface interne (49) du conduit (19) est sélectionné sur la base du calcul suivant. L'interstice (47) ne doit pas être inférieur au déplacement orthogonal maximal thermosysmique dans un plan par rapport au plan de la paroi interne (1) par rapport à la surface externe (11) et au changement de la position coaxiale du câble (2) dans le conduit (19).
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