GB1383303A - Nuclear reactors - Google Patents

Nuclear reactors

Info

Publication number
GB1383303A
GB1383303A GB385371A GB385371A GB1383303A GB 1383303 A GB1383303 A GB 1383303A GB 385371 A GB385371 A GB 385371A GB 385371 A GB385371 A GB 385371A GB 1383303 A GB1383303 A GB 1383303A
Authority
GB
United Kingdom
Prior art keywords
sections
section
columns
force
tie band
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.)
Expired
Application number
GB385371A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Nuclear Design of Construction Ltd
Original Assignee
British Nuclear Design of Construction Ltd
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 by British Nuclear Design of Construction Ltd filed Critical British Nuclear Design of Construction Ltd
Priority to GB385371A priority Critical patent/GB1383303A/en
Priority to DE19722203843 priority patent/DE2203843A1/en
Priority to IT48030/72A priority patent/IT948374B/en
Priority to FR7203476A priority patent/FR2124394B1/fr
Publication of GB1383303A publication Critical patent/GB1383303A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

1383303 Moderator structures BRITISH NUCLEAR DESIGN & CONSTRUCTION Ltd 26 Jan 1972 [3 Feb 1971] 3853/71 Heading G6C A moderator structure comprises a plurality of parallel vertical columns, which make mutual contact at particular levels, and restraint means for holding the columns together, at least some of the peripheral columns being divided into sections disposed end-to-end and connected together by hinge means which engage adjacent ends of adjoining sections in a manner permitting relative pivoting movement of the sections about a horizontal axis whilst preventing relative displacement of the adjacent ends transverse to this axis. As shown, the peripheral columns are each divided into sections 18, 20, 22 at each of the levels and the sections are pivotally connected together by rollers 19, 21 accommodated in recesses formed in the ends of the sections. The weight of the section or sections disposed above a section 20 causes it to exert a substantially horizontal force R towards the left, which force is transmitted via a projection 24 formed on section 20 to a part cylindrical projection 26 formed on an adjacent column 10. A tie band 14 engages the section 22 of each peripheral column and the horizontal component r of the force R is reacted on to this tie band. Differential thermal expansion in the horizontal direction between the columns 10 and the tie band 14 is accommodated by rotation of the section 20 about the lower roller 21. The upper end of section 20 and the lower end of section 18 are so shaped that when the reactor is shut down and the structure is cool the sections 18, 20 are in contact over a substantial portion of their end faces; the force R is then zero or very small and movement of columns into and out of the structure is facilitated. Means other than the tie band 14 can be used for providing radial support, e.g. support means attached to, and extending radially from, a wall of a pressure vessel surrounding the structure could be used.
GB385371A 1971-02-03 1971-02-03 Nuclear reactors Expired GB1383303A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB385371A GB1383303A (en) 1971-02-03 1971-02-03 Nuclear reactors
DE19722203843 DE2203843A1 (en) 1971-02-03 1972-01-27 Nuclear reactor moderator setup
IT48030/72A IT948374B (en) 1971-02-03 1972-01-29 IMPROVEMENT IN MODERATOR STRUCTURES FOR NUCLEAR REATORS
FR7203476A FR2124394B1 (en) 1971-02-03 1972-02-02

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB385371A GB1383303A (en) 1971-02-03 1971-02-03 Nuclear reactors

Publications (1)

Publication Number Publication Date
GB1383303A true GB1383303A (en) 1974-02-12

Family

ID=9766167

Family Applications (1)

Application Number Title Priority Date Filing Date
GB385371A Expired GB1383303A (en) 1971-02-03 1971-02-03 Nuclear reactors

Country Status (4)

Country Link
DE (1) DE2203843A1 (en)
FR (1) FR2124394B1 (en)
GB (1) GB1383303A (en)
IT (1) IT948374B (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1209033A (en) * 1967-03-17 1970-10-14 Nuclear Power Group Ltd Improvements in and relating to solid neutron moderating core structures for nuclear reactors

Also Published As

Publication number Publication date
FR2124394A1 (en) 1972-09-22
DE2203843A1 (en) 1972-09-14
FR2124394B1 (en) 1976-07-23
IT948374B (en) 1973-05-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees