ES8101803A1 - Spider and Burnable Poison Rod Combinations - Google Patents

Spider and Burnable Poison Rod Combinations

Info

Publication number
ES8101803A1
ES8101803A1 ES484631A ES484631A ES8101803A1 ES 8101803 A1 ES8101803 A1 ES 8101803A1 ES 484631 A ES484631 A ES 484631A ES 484631 A ES484631 A ES 484631A ES 8101803 A1 ES8101803 A1 ES 8101803A1
Authority
ES
Spain
Prior art keywords
stem
spider
bore
burnable poison
poison rod
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
ES484631A
Other languages
Spanish (es)
Other versions
ES484631A0 (en
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.)
Babcock and Wilcox Co
Original Assignee
Babcock and Wilcox Co
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 Babcock and Wilcox Co filed Critical Babcock and Wilcox Co
Publication of ES484631A0 publication Critical patent/ES484631A0/en
Publication of ES8101803A1 publication Critical patent/ES8101803A1/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C7/00—Control of nuclear reaction
    • G21C7/02—Control of nuclear reaction by using self-regulating properties of reactor materials, e.g. Doppler effect
    • G21C7/04—Control of nuclear reaction by using self-regulating properties of reactor materials, e.g. Doppler effect of burnable poisons
    • 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
    • G21C7/10—Construction of control elements
    • G21C7/117—Clusters of control rods; Spider construction
    • 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
    • G21C7/10—Construction of control elements
    • 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

Abstract

Burnable poison rods are secured to a spider to enable them to be moved longitudinally within a nuclear reactor fuel assembly, plug (35) on the end of each of the burnable poison rods being provided with a stem (43) that is received in a respective bore formed in the spider. The bore has a lower portion of diameter slightly greater than that of the stem (43), an upper portion of considerably greater diameter, and an intermediate truncated conical surface (55). A longitudinal bore (44) formed in the stem (43) from its free end and extending for about half the stem length enables the stem (43) to be deformed outwardly to firmly secure the stem in the spider bore. Pressing the stem (43) downwards in the direction of the bore axis by means of a mandrel (70-Fig. 4, not shown) overcomes the deformation to release the particular rod from the spider.
ES484631A 1978-10-18 1979-10-01 Spider and Burnable Poison Rod Combinations Expired ES8101803A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US95252278A 1978-10-18 1978-10-18

Publications (2)

Publication Number Publication Date
ES484631A0 ES484631A0 (en) 1980-12-16
ES8101803A1 true ES8101803A1 (en) 1980-12-16

Family

ID=25492987

Family Applications (2)

Application Number Title Priority Date Filing Date
ES484631A Expired ES8101803A1 (en) 1978-10-18 1979-10-01 Spider and Burnable Poison Rod Combinations
ES494899A Granted ES494899A0 (en) 1978-10-18 1980-09-08 ARANA PROVIDED WITH A HOLE FORMED IN IT TO RECEIVE A BAR OF COMBUSTIBLE POISON

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES494899A Granted ES494899A0 (en) 1978-10-18 1980-09-08 ARANA PROVIDED WITH A HOLE FORMED IN IT TO RECEIVE A BAR OF COMBUSTIBLE POISON

Country Status (9)

Country Link
JP (1) JPS5928875B2 (en)
CA (1) CA1132728A (en)
CH (1) CH650352A5 (en)
DE (1) DE2929465C2 (en)
ES (2) ES8101803A1 (en)
FR (1) FR2439457A1 (en)
GB (2) GB2077483B (en)
IT (1) IT1124381B (en)
MX (1) MX6683E (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3337636C1 (en) * 1983-10-15 1987-01-02 Brown Boveri Reaktor GmbH, 6800 Mannheim Process and device for exchanging neutron absorber rods
US4576787A (en) * 1983-12-21 1986-03-18 Westinghouse Electric Corp. Burnable absorber assembly
EP0159509B1 (en) * 1984-03-30 1989-01-04 Westinghouse Electric Corporation An improved control rod spider assembly for a nuclear reactor fuel assembly
JPS60163566U (en) * 1984-04-02 1985-10-30 ソニー株式会社 disc cassette
US4640813A (en) * 1984-09-26 1987-02-03 Westinghouse Electric Corp. Soluble burnable absorber rod for a nuclear reactor
FR2599884B1 (en) * 1986-06-10 1988-10-07 Fragema Framatome & Cogema ADJUSTMENT GRAPPLE WITH REMOVABLE PENCILS FOR NUCLEAR FUEL ASSEMBLY
FR2633435B1 (en) * 1988-06-28 1990-11-09 Framatome Sa ADJUSTABLE PENCIL ADJUSTING CLUSTER FOR NUCLEAR FUEL ASSEMBLY

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR633615A (en) * 1927-04-30 1928-02-01 Soc Fr Constr Babcock & Wilcox Process for chucking tubular parts into holes in other parts
US3314859A (en) * 1963-12-05 1967-04-18 Combustion Eng Nuclear reactor fuel assembly-control rod organization
GB1152003A (en) * 1965-08-17 1969-05-14 Atomic Energy Authority Uk Improvements relating to Nuclear Reactors
GB1112946A (en) * 1965-08-10 1968-05-08 Atomic Energy Authority Uk Improvements relating to nuclear reactors
FR2208730B1 (en) * 1972-12-05 1978-03-10 Kerjean Yves
FR2233587A1 (en) * 1973-06-14 1975-01-10 Chausson Usines Sa Tube bundle heat exchanger - has tube ends shaped as complementary polygons

Also Published As

Publication number Publication date
JPS5928875B2 (en) 1984-07-16
GB2032163B (en) 1982-09-15
DE2929465A1 (en) 1980-04-24
IT7909548A0 (en) 1979-09-28
ES8302345A1 (en) 1982-12-16
FR2439457B1 (en) 1984-06-08
MX6683E (en) 1985-10-08
CH650352A5 (en) 1985-07-15
ES484631A0 (en) 1980-12-16
ES494899A0 (en) 1982-12-16
JPS5557188A (en) 1980-04-26
IT1124381B (en) 1986-05-07
FR2439457A1 (en) 1980-05-16
DE2929465C2 (en) 1983-12-01
GB2077483A (en) 1981-12-16
GB2032163A (en) 1980-04-30
CA1132728A (en) 1982-09-28
GB2077483B (en) 1983-04-27

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