BE902856A - Tube de guidage-reducteur de debit - Google Patents
Tube de guidage-reducteur de debitInfo
- Publication number
- BE902856A BE902856A BE0/215323A BE215323A BE902856A BE 902856 A BE902856 A BE 902856A BE 0/215323 A BE0/215323 A BE 0/215323A BE 215323 A BE215323 A BE 215323A BE 902856 A BE902856 A BE 902856A
- Authority
- BE
- Belgium
- Prior art keywords
- opening
- guide tube
- outer ring
- flow reducing
- support plate
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/02—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C7/00—Control of nuclear reaction
- G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
- G21C7/08—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pipe Accessories (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Paper (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Details Of Valves (AREA)
Abstract
Un tube de guidage-réducteur de débit de réacteur nucléaire pour utilisation sur une plaque de support supérieure (61) destiné à guider un arbre d'entrainement (71) de barre de controle à travers une ouverture (63) pratiquée dans la dite plaque de support (61) et à réduire le débit de réfrigérant à travers celle-ci, possède une bague extérieure (3) ayant une collerette (15) d'où partent des segments flexibles (19) portant des déflecteurs dirigés vers l'intérieur, et s'étendant à travers l'alésage de la bague extérieure et l'ouverture (63). Un manchon (5) qui, lors de son insertion dans la bague entre les segments flexibles vient en contact avec les pattes de déflection (33) des dits segments pour obliger ceux-ci à s'écarter vers l'extérieur pour les plaquer sur la paroi de l'ouverture (63) prévue dans la plaque de support (61).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/634,727 US4664879A (en) | 1984-07-26 | 1984-07-26 | Guide tube flow restrictor |
Publications (1)
Publication Number | Publication Date |
---|---|
BE902856A true BE902856A (fr) | 1986-01-13 |
Family
ID=24544980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE0/215323A BE902856A (fr) | 1984-07-26 | 1985-07-11 | Tube de guidage-reducteur de debit |
Country Status (5)
Country | Link |
---|---|
US (1) | US4664879A (fr) |
JP (1) | JPS6144394A (fr) |
BE (1) | BE902856A (fr) |
GB (1) | GB2162360B (fr) |
IT (1) | IT1200683B (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8626237D0 (en) * | 1986-11-03 | 1986-12-03 | Nat Nuclear Corp Ltd | Fluid flow-restricting sealsbaffles |
US4822558A (en) * | 1987-07-30 | 1989-04-18 | Westinghouse Electric Corp. | Thimble guide extender for a nuclear power plant |
FR2622040B1 (fr) * | 1987-10-14 | 1992-08-14 | Novatome | Dispositif amovible de reglage du debit de fluide de refroidissement dans un assemblage d'un reacteur nucleaire a neutrons rapides et procede de reglage et assemblage correspondants |
US5053189A (en) * | 1989-10-16 | 1991-10-01 | Westinghouse Electric Corp. | System providing improved guidance support with restricted coolant flow for control rods in the upper head plenum of a nuclear reactor |
US5215707A (en) * | 1991-09-10 | 1993-06-01 | Siemens Power Corporation | Instrument thimble tube shroud |
US5490191A (en) * | 1994-09-29 | 1996-02-06 | Siemens Power Corporation | BWR nuclear fuel assembly |
EP2405443A1 (fr) * | 2010-07-06 | 2012-01-11 | Areva NP | Assemblage de combustible nucléaire pour réacteur nucléaire à eau bouillante avec manchon élastique encliquetable |
EP2525361A1 (fr) * | 2011-05-20 | 2012-11-21 | Areva NP | Embout inférieur pour assemblage de combustible nucléaire |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL278891A (fr) * | 1961-05-27 | |||
US3389056A (en) * | 1964-07-09 | 1968-06-18 | Westinghouse Electric Corp | Fuel assemblies |
US4050476A (en) * | 1970-11-27 | 1977-09-27 | Sanders Associates, Inc. | Low noise hydraulic servo valve |
FR2222731B1 (fr) * | 1973-03-22 | 1976-05-21 | Alsthom | |
IT1025260B (it) * | 1973-11-16 | 1978-08-10 | Mtu Muenchen Gmbh | Turbina a raffreddamento interno della corona e con posizioni prescritte di rottura |
US4194948A (en) * | 1977-11-14 | 1980-03-25 | General Atomic | Locking support for nuclear fuel assemblies |
US4289291A (en) * | 1978-12-18 | 1981-09-15 | The Babcock & Wilcox Company | Retractable storage lug |
JPS5735718A (en) * | 1980-08-12 | 1982-02-26 | Citizen Watch Co Ltd | Rectifying element |
US4348353A (en) * | 1980-11-12 | 1982-09-07 | The United States Of America As Represented By The United States Department Of Energy | Nuclear reactor fuel assembly duct-tube-to-inlet-nozzle attachment system |
US4544099A (en) * | 1981-04-20 | 1985-10-01 | Norris Harold R | Flow control valve |
NZ200960A (en) * | 1981-06-22 | 1985-11-08 | Ris Irrigation Syst | Drip feed device containing disc with tortuous flow paths on each side |
-
1984
- 1984-07-26 US US06/634,727 patent/US4664879A/en not_active Expired - Fee Related
-
1985
- 1985-07-11 BE BE0/215323A patent/BE902856A/fr not_active IP Right Cessation
- 1985-07-19 IT IT21649/85A patent/IT1200683B/it active
- 1985-07-22 GB GB08518462A patent/GB2162360B/en not_active Expired
- 1985-07-26 JP JP60164226A patent/JPS6144394A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
GB8518462D0 (en) | 1985-08-29 |
GB2162360A (en) | 1986-01-29 |
JPH0451798B2 (fr) | 1992-08-20 |
JPS6144394A (ja) | 1986-03-04 |
IT1200683B (it) | 1989-01-27 |
GB2162360B (en) | 1988-05-05 |
IT8521649A0 (it) | 1985-07-19 |
US4664879A (en) | 1987-05-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: WESTINGHOUSE ELECTRIC CORP. Effective date: 19900731 |