UST911015I4 - Nuclear core positioning system - Google Patents

Nuclear core positioning system Download PDF

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Publication number
UST911015I4
UST911015I4 US911015DH UST911015I4 US T911015 I4 UST911015 I4 US T911015I4 US 911015D H US911015D H US 911015DH US T911015 I4 UST911015 I4 US T911015I4
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US
United States
Prior art keywords
positioning system
core positioning
core
clearances
nuclear core
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of UST911015I4 publication Critical patent/UST911015I4/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C1/00—Reactor types
    • G21C1/02—Fast fission reactors, i.e. reactors not using a moderator ; Metal cooled reactors; Fast breeders
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C13/00—Pressure vessels; Containment vessels; Containment in general
    • G21C13/02—Details
    • G21C13/04—Arrangements for expansion and contraction
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C5/00—Moderator or core structure; Selection of materials for use as moderator
    • G21C5/02—Details
    • G21C5/08—Means for preventing undesired asymmetric expansion of the complete structure ; Stretching devices, pins
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C5/00—Moderator or core structure; Selection of materials for use as moderator
    • G21C5/02—Details
    • G21C5/10—Means for supporting the complete structure
    • 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

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A STRUCTURAL SUPPORT SYSTEM FOR THE CORE OF A NUCLEAR REACTOR WHICH ACHIEVES RELATIVELY RESTRICTED CLEARANCES AT OPERATING CONDITIONS AND YET ALLOWS SUFFICIENT CLEARANCE BETWEEN FUEL ASSEMBLIES AT REFUELING TEMPERATURS. AXIALLY DISPLACED SPACER PADS HAVING VARIABLE BETWEEN PAD SPACING AND A TEMPERATURE COMPENSATED RADIAL RESTRAINT SYSTEM ARE UTILIZED TO MAINTAIN CLEARANCES BETWEEN THE FUEL ELEMENTS. THE CORE SUPPORT PLATES ARE CONSTRUCTED OF METALS SPECIALLY CHOSEN SUCH THAT DIFFERENTIAL THERMAL EXPANSION PRODUCES POSITIVE RESTRAINT AT OPERATING TEMPERTURES.

Description

i drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.
e of Dec. 16, 1969, 869 0.6. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically.
the merits of alleged invention. The Patent Oflice makes PUBLISHED JUNE 26, 1973 UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notic The heading of each abstract indicates the number of pages of specification, including claims and sheets 0 Defensive Publication applications have not been examined as to no assertion as to the novelty of the disclosed subject matters t Y. .l 3 Wm? mwmnmwm m e 3 .7. [ch u e m MGm nmwmmmmmm e m m s. Pm u a m fl' n Ofet #Mm S m fio nm m Pi a c twrw lw sire, mm whe mo Gw. ,1 mm a b n M2 W mS M m y o w mw me w wmm s mfi ismw 0 L3 8?. Qn. r un M &c owm1 mum w mu 0 1 ,0 1 e m m mw l m l m. f m. t I 10. SCI/G .IENCRM: h Pm iw. sl im mm e rit um wm ww p m R hhfl fim wmw awnfi 0c E. UaO H mm mm. GER E rn emb mt m0 RM MD oewm m fi o w a m hm m uahm mm m Lr nm h co e m m Cmmfi wwm mw m i WM .w s wgf aufim S w mw mm mm w mm m a Auwms mmamm H mob mmmdmpw H PM m" June 26,1913
Filed Dec. 21, 1971 H. D. GARKISCH ET AL NUCLEAR CORE POSITIONING SYSII'JM 3 Sheefs-Sheet .1
June. 26, 1973 Filed Dcc'. 21, 1971 H. D. GARKISCH ET AL NUCLEAR CORE POSITIONING SYSTEM 3 Sheets-$heet ,1
- June 26, 1973 HLQ GARMSCH ET AL T9l1,0l5
NUCLEAR .CORE POSITIONING SYSTEM Filed Dec. 21, 1971 3 Sheets-Sheet 5 w M a d #5
US911015D 1971-12-21 1971-12-21 Nuclear core positioning system Pending UST911015I4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21044771A 1971-12-21 1971-12-21

Publications (1)

Publication Number Publication Date
UST911015I4 true UST911015I4 (en) 1973-06-26

Family

ID=22782940

Family Applications (2)

Application Number Title Priority Date Filing Date
US911015D Pending UST911015I4 (en) 1971-12-21 1971-12-21 Nuclear core positioning system
US05/471,068 Expired - Lifetime US4135974A (en) 1971-12-21 1974-05-17 Nuclear core positioning system

Family Applications After (1)

Application Number Title Priority Date Filing Date
US05/471,068 Expired - Lifetime US4135974A (en) 1971-12-21 1974-05-17 Nuclear core positioning system

Country Status (6)

Country Link
US (2) UST911015I4 (en)
JP (1) JPS5347878B2 (en)
DE (1) DE2256645C2 (en)
FR (1) FR2164679B1 (en)
GB (1) GB1376256A (en)
IT (1) IT972654B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5588031A (en) * 1994-10-27 1996-12-24 Westinghouse Electric Corporation Apparatus for reinforcing a reactor vessel core shroud
US5828713A (en) * 1996-10-15 1998-10-27 Mpr Associates, Inc. Replacement core shroud assembly for a boiling water reactor

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50121199U (en) * 1974-03-22 1975-10-03
US4146430A (en) * 1975-11-25 1979-03-27 Westinghouse Electric Corp. Nuclear reactor core flow baffling
DE2705010A1 (en) * 1977-02-07 1978-08-10 Kraftwerk Union Ag DEVICE FOR COUPLING PIPING IN REACTOR PRESSURE VESSELS, PREFERABLY THE PIPING OF THE FEED WATER DISTRIBUTOR
CA1091827A (en) * 1977-03-02 1980-12-16 John F. Gibbons Pressurized water reactor flow arrangement
DE2742946C2 (en) * 1977-09-23 1979-07-26 Kraftwerk Union Ag, 4330 Muelheim Spring element for holding down nuclear reactor fuel elements
US4295935A (en) * 1979-03-29 1981-10-20 Combustion Engineering, Inc. Bimetallic spacer means for a nuclear fuel assembly
US4409179A (en) * 1980-12-08 1983-10-11 Combustion Engineering, Inc. Pressurized core shroud for aligning a nuclear reactor core
FR2501893B1 (en) * 1981-03-13 1985-11-15 Framatome Sa NUCLEAR REACTOR WITH HEART PARTITIONING BY RODS AND SPACER PLATES
US4596689A (en) * 1982-08-27 1986-06-24 Ga Technologies Inc. Lateral restraint assembly for reactor core
GB8626238D0 (en) * 1986-11-03 1986-12-03 Nat Nuclear Corp Ltd Nuclear reactor core restraint
FR2717608B1 (en) * 1994-03-15 1996-06-14 Framatome Sa Nuclear reactor vessel comprising means for holding its lower internal equipment and method for adjusting the holding means.
DE19609344C1 (en) * 1996-03-11 1997-09-04 Siemens Ag Core container for a reactor pressure vessel of a nuclear reactor plant and method for repairing a core container
US5687206A (en) * 1996-03-15 1997-11-11 Mpr Associates, Inc. Method of replacing a boiling water reactor core shroud
US5815543A (en) * 1996-03-25 1998-09-29 Mpr Associates, Inc. Seismic support with clearance gap and yieldable member
ITUA20163714A1 (en) * 2016-05-04 2017-11-04 Luciano Cinotti NUCLEAR REACTOR, WITH ELEMENTS OF FUEL WITH EXPANDERS
IT202200012476A1 (en) * 2022-06-13 2023-12-13 Newcleo Ltd NUCLEAR REACTOR EQUIPPED WITH A CORE SUPPORT SYSTEM

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2838451A (en) * 1954-11-13 1958-06-10 Long Everett Gas cooled nuclear reactors
US3607645A (en) * 1968-07-02 1971-09-21 Atomic Energy Commission Reactor core radial locking device
US3627634A (en) * 1968-11-26 1971-12-14 Gen Electric Nuclear reactor core clamping system
US3607637A (en) * 1969-01-03 1971-09-21 Combustion Eng Nuclear reactor coolant flow device
US3549493A (en) * 1969-01-22 1970-12-22 Atomic Energy Commission Fast sodium-cooled reactor core structure
CA925632A (en) * 1969-05-09 1973-05-01 S. Jabsen Felix Nuclear reactor core stabilizing arrangement
US3629070A (en) * 1969-06-09 1971-12-21 Atomic Energy Commission Temperature-activated reactor core clamp
US3682774A (en) * 1969-09-26 1972-08-08 North American Rockwell Core clamping system for a nuclear reactor
AT310882B (en) * 1970-04-30 1973-10-25 Voest Ag Support structure for the core of nuclear reactors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5588031A (en) * 1994-10-27 1996-12-24 Westinghouse Electric Corporation Apparatus for reinforcing a reactor vessel core shroud
US5828713A (en) * 1996-10-15 1998-10-27 Mpr Associates, Inc. Replacement core shroud assembly for a boiling water reactor

Also Published As

Publication number Publication date
JPS5347878B2 (en) 1978-12-23
FR2164679B1 (en) 1978-03-10
JPS4867695A (en) 1973-09-14
DE2256645A1 (en) 1973-07-05
IT972654B (en) 1974-05-31
FR2164679A1 (en) 1973-08-03
DE2256645C2 (en) 1983-08-25
GB1376256A (en) 1974-12-04
US4135974A (en) 1979-01-23

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