NO893089L - Hydraulisk forsterkning av kanal ved nedre strekkplate for brennstofftilfoerselsbunt i kokerreaktor. - Google Patents
Hydraulisk forsterkning av kanal ved nedre strekkplate for brennstofftilfoerselsbunt i kokerreaktor.Info
- Publication number
- NO893089L NO893089L NO89893089A NO893089A NO893089L NO 893089 L NO893089 L NO 893089L NO 89893089 A NO89893089 A NO 89893089A NO 893089 A NO893089 A NO 893089A NO 893089 L NO893089 L NO 893089L
- Authority
- NO
- Norway
- Prior art keywords
- channel
- plate
- binder
- binder plate
- fuel
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/30—Assemblies of a number of fuel elements in the form of a rigid unit
- G21C3/32—Bundles of parallel pin-, rod-, or tube-shaped fuel elements
- G21C3/324—Coats or envelopes for the bundles
-
- 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)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
- Feeding And Controlling Fuel (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
I en kokende vann kjernereaktor, er et forbedret nedre binderplate-brensel- kanalgrensesnitt for brenselbunten i en kokende vann reaktor. Brenselbunten har en nedre binderplate for å understøtte brenselstaver og å tillate innføring av en væske inne i brenselbunten. En øvre binderplate holder brenselstavene som er understøttet på den nedre binderplate ved siden av hverandre, og har åpninger for utløp av en blanding av vann og damp. Brenselstavene strekker seg mellom binderplatene for å generere damp, mens noen av brenselstavene danner en gjenget forbindelse som fester binderplatene sammen. En mangekantet kanal, fortrinns- vis firkantet, omgir binderplatene og brenselstavene for å holde væskestrømmen mellom binderplatene inne i bunten. Grensesnittet mellom kanalen hvor den ligger rundt den nedre binderplate er omformet. Denne omformingen omfatter en anordning for å bevirke et raskt trykkfall fra den indre forbindelse mellom den nedre binderplate og kanalen til og mot den ytre forbindelse mellom den nedre binderplate og kanalen. På grunn av dette raske trykkfall blir ikke den nedre del av den firkantede kanal utsatt for trykkbelastning, og bunndelen forsterker den øvre del. I en utførelse er det utformet en labyrinttetning i overlappingsregionen mellom kanalen og den nedre binderplate, bestående av avbrutte hindringer i et ellers konstant strømningsområde mellom den nedre bunnplate og kanalen. Labyrinttetningen er vist som utformet enten i den nedre binderplate eller kanalen. I en annen, foretrukken utførelse, er en spreder lagt inn i overlappings- regionen mellom kanalen og den nedre binderplate. Sprederen forårsaker en trykkfordeling i overlappingsregionen som begrenser avbøyning av kanalen.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/226,482 US4889684A (en) | 1988-08-01 | 1988-08-01 | Hydraulic reinforcement of channel at lower tie-plate in BWR fuel bundle |
Publications (2)
Publication Number | Publication Date |
---|---|
NO893089D0 NO893089D0 (no) | 1989-07-31 |
NO893089L true NO893089L (no) | 1990-02-02 |
Family
ID=22849080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO89893089A NO893089L (no) | 1988-08-01 | 1989-07-31 | Hydraulisk forsterkning av kanal ved nedre strekkplate for brennstofftilfoerselsbunt i kokerreaktor. |
Country Status (7)
Country | Link |
---|---|
US (1) | US4889684A (no) |
EP (1) | EP0353967B1 (no) |
JP (1) | JPH0827365B2 (no) |
DE (1) | DE68921027T2 (no) |
DK (1) | DK370789A (no) |
ES (1) | ES2067545T3 (no) |
NO (1) | NO893089L (no) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0378384B1 (en) * | 1989-01-13 | 1993-05-26 | Hitachi, Ltd. | Nuclear fuel assemblies |
US4997621A (en) * | 1989-03-13 | 1991-03-05 | General Electric Company | Lower tie plate with stepped holes to control pressure drop and flow distribution |
US5128098A (en) * | 1990-02-28 | 1992-07-07 | Hitachi, Ltd. | Fuel assembly |
JPH0816709B2 (ja) * | 1990-05-25 | 1996-02-21 | 株式会社日立製作所 | 燃料集合体,チヤンネルボツクス,チヤンネルボツクスの製造方法及び原子炉の炉心 |
SE469046B (sv) * | 1991-02-11 | 1993-05-03 | Asea Atom Ab | Braenslepatron foer en kaernreaktor av laettvattentyp |
DE69203750T2 (de) * | 1991-02-25 | 1996-01-18 | Hitachi Eng Co Ltd | Brennstoffbündel mit Strömungskanal. |
US5345486A (en) * | 1993-01-25 | 1994-09-06 | General Electric Company | Fuel bundle with improved resistance to bulge and improved critical power performance |
US5383227A (en) * | 1993-08-23 | 1995-01-17 | Siemens Power Corporation | Method for modifying existing transition pieces in bottom entry nuclear fuel assemblies for reducing coolant pressure drop |
JPH0763866A (ja) * | 1993-08-23 | 1995-03-10 | Siemens Power Corp | 原子炉の核燃料集合体 |
US5574761A (en) * | 1995-09-29 | 1996-11-12 | Crs Holdings, Inc. | Fuel channels with off-centerline welds |
US6849671B2 (en) | 1998-03-02 | 2005-02-01 | Johnson & Johnson Vision Care, Inc. | Contact lenses |
US6934351B2 (en) * | 2002-12-06 | 2005-08-23 | Framatome Anp Inc. | Boiling water reactor fuel assembly |
US7702060B2 (en) * | 2006-10-20 | 2010-04-20 | Global Nuclear Fuel - Americas, L.L.C. | Expanded nuclear fuel channel |
US20230091913A1 (en) * | 2021-09-21 | 2023-03-23 | Framatome | Bwr nuclear fuel assembly comprising an interaction device between a lower tie plate and a fuel channel |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3689358A (en) * | 1969-08-15 | 1972-09-05 | Gen Electric | Nuclear fuel assembly with leakage flow control member |
US3697376A (en) * | 1969-08-15 | 1972-10-10 | Gen Electric | Nuclear fuel assembly with flow channel restraining means |
US3715274A (en) * | 1969-08-15 | 1973-02-06 | Gen Electric | Nuclear fuel assembly with reinforced flow channel |
US4035233A (en) * | 1975-06-18 | 1977-07-12 | General Electric Company | Channel follower leakage restrictor |
SE419006B (sv) * | 1979-10-30 | 1981-07-06 | Asea Atom Ab | Kokarreaktor med diffusor i brenslepatroner |
SE424236B (sv) * | 1980-10-29 | 1982-07-05 | Asea Atom Ab | Brenslepatron for en kokarreaktor |
SE440289B (sv) * | 1983-11-15 | 1985-07-22 | Asea Atom Ab | Brenslepatron for en kokvattenreaktor |
US4663118A (en) * | 1985-06-20 | 1987-05-05 | General Electric Company | Flow channel to nozzle attachment for nuclear fuel assembly |
US4749543A (en) * | 1987-03-24 | 1988-06-07 | General Electric Company | Axially shaped channel and integral flow trippers |
JPH01193690A (ja) * | 1988-01-29 | 1989-08-03 | Hitachi Ltd | 燃料集合体 |
JPH01227990A (ja) * | 1988-03-09 | 1989-09-12 | Hitachi Ltd | 核燃料集合体 |
-
1988
- 1988-08-01 US US07/226,482 patent/US4889684A/en not_active Expired - Fee Related
-
1989
- 1989-06-16 JP JP1152473A patent/JPH0827365B2/ja not_active Expired - Lifetime
- 1989-07-27 DK DK370789A patent/DK370789A/da not_active Application Discontinuation
- 1989-07-28 DE DE68921027T patent/DE68921027T2/de not_active Expired - Fee Related
- 1989-07-28 EP EP89307735A patent/EP0353967B1/en not_active Expired - Lifetime
- 1989-07-28 ES ES89307735T patent/ES2067545T3/es not_active Expired - Lifetime
- 1989-07-31 NO NO89893089A patent/NO893089L/no unknown
Also Published As
Publication number | Publication date |
---|---|
ES2067545T3 (es) | 1995-04-01 |
NO893089D0 (no) | 1989-07-31 |
EP0353967A3 (en) | 1990-07-18 |
US4889684A (en) | 1989-12-26 |
DE68921027T2 (de) | 1995-09-14 |
EP0353967B1 (en) | 1995-02-08 |
DK370789A (da) | 1990-02-02 |
DE68921027D1 (de) | 1995-03-23 |
JPH0827365B2 (ja) | 1996-03-21 |
DK370789D0 (da) | 1989-07-27 |
EP0353967A2 (en) | 1990-02-07 |
JPH0255990A (ja) | 1990-02-26 |
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