GB1150730A - Improvements in Moderator Core Structures for Nuclear Reactors - Google Patents

Improvements in Moderator Core Structures for Nuclear Reactors

Info

Publication number
GB1150730A
GB1150730A GB53908/68A GB5390868A GB1150730A GB 1150730 A GB1150730 A GB 1150730A GB 53908/68 A GB53908/68 A GB 53908/68A GB 5390868 A GB5390868 A GB 5390868A GB 1150730 A GB1150730 A GB 1150730A
Authority
GB
United Kingdom
Prior art keywords
blocks
keying
interstitial
members
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.)
Expired
Application number
GB53908/68A
Inventor
Geoffrey William Triggs
Norman Prince
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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
Priority claimed from GB32381/65A external-priority patent/GB1150729A/en
Application filed by UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB53908/68A priority Critical patent/GB1150730A/en
Publication of GB1150730A publication Critical patent/GB1150730A/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
    • G21C5/04—Spatial arrangements allowing for Wigner growth
    • 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)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

1,150,730. Moderator structures. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 21 July, 1966 [28 July, 1965], No. 53908/68. Divided out of 1,150,729. Heading G6C. A nuclear reactor core structure comprises an assembly of prismatic blocks 4 of neutron moderating material, e.g. graphite, arranged end to end in columns, having fuel element channels 8 and keying members 14 fitted in keyways radial relative to the axes of the blocks to key the blocks together, the keying members 14 being less than half the length of the blocks 4 to which they key and being supported within the length of the blocks 4 by loosely fitting spacing members 16 which serve no keying function in relation to the blocks. The structure also comprises an outer peripheral reflector region 1 of solid reflector blocks 2 coupled to each other and to adjacent core blocks 4 by keying members 14. The outer reflector blocks 2 are, however, coupled by sealing keys (not shown) in the form of rectangular section graphite bars which extend the full length of each column of blocks 2. Each of the core blocks 4 has a spigot 10 at its lower end which engages with a recess 11 in the upper end of the lower adjacent core block 4. The spigot 10 at the lower end of the bottom core block in each column engages with a recess 12 around an aperture 13 in the bottom support plate 6. The reflector blocks 2 and the core blocks 4 are arranged on a square lattice and the interspace between each group of four adjacent blocks is filled by a column of interstitial graphite blocks 17, 18. The interstitial blocks 17 are keying members of the same length as the keying members 14 and have an integral keying projection formed on each face, these projections engaging with longitudinal keyways in the adjacent blocks 2, 4. The interstitial blocks 18 are positioned alternately with the blocks 17 and serve no keying functions in relation to the blocks 2, 4. The interstitial blocks 17, 18 are joined end to end by graphite dowels 21 which engage with corresponding sockets 22 in the end faces of the blocks.
GB53908/68A 1965-07-28 1966-07-21 Improvements in Moderator Core Structures for Nuclear Reactors Expired GB1150730A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB53908/68A GB1150730A (en) 1965-07-28 1966-07-21 Improvements in Moderator Core Structures for Nuclear Reactors

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB32381/65A GB1150729A (en) 1965-07-28 1965-07-28 Improvements in Moderator Core Structures for Nuclear Reactors
GB53908/68A GB1150730A (en) 1965-07-28 1966-07-21 Improvements in Moderator Core Structures for Nuclear Reactors

Publications (1)

Publication Number Publication Date
GB1150730A true GB1150730A (en) 1969-04-30

Family

ID=27256837

Family Applications (1)

Application Number Title Priority Date Filing Date
GB53908/68A Expired GB1150730A (en) 1965-07-28 1966-07-21 Improvements in Moderator Core Structures for Nuclear Reactors

Country Status (1)

Country Link
GB (1) GB1150730A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2751065A1 (en) * 1977-11-15 1979-05-17 Kernforschungsanlage Juelich CEILING REFLECTOR

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2751065A1 (en) * 1977-11-15 1979-05-17 Kernforschungsanlage Juelich CEILING REFLECTOR

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414B Case decided by the comptroller ** grants allowed (sect. 14/1949)
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees