FR2045598A7 - Retractable guide tube for control rod grab - Google Patents

Retractable guide tube for control rod grab

Info

Publication number
FR2045598A7
FR2045598A7 FR6918571A FR6918571A FR2045598A7 FR 2045598 A7 FR2045598 A7 FR 2045598A7 FR 6918571 A FR6918571 A FR 6918571A FR 6918571 A FR6918571 A FR 6918571A FR 2045598 A7 FR2045598 A7 FR 2045598A7
Authority
FR
France
Prior art keywords
guide tube
control rod
grab
rod head
retractable guide
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
FR6918571A
Other languages
French (fr)
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.)
IND ATOMIQUE SOCIA
Original Assignee
IND ATOMIQUE SOCIA
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 IND ATOMIQUE SOCIA filed Critical IND ATOMIQUE SOCIA
Priority to FR6918571A priority Critical patent/FR2045598A7/en
Application granted granted Critical
Publication of FR2045598A7 publication Critical patent/FR2045598A7/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C7/00—Control of nuclear reaction
    • G21C7/06—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
    • G21C7/12—Means for moving control elements to desired position
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
    • G21C19/02—Details of handling arrangements
    • G21C19/10—Lifting devices or pulling devices adapted for co-operation with fuel elements or with control elements
    • G21C19/105—Lifting devices or pulling devices adapted for co-operation with fuel elements or with control elements with grasping or spreading coupling elements
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
    • G21C19/02—Details of handling arrangements
    • G21C19/10—Lifting devices or pulling devices adapted for co-operation with fuel elements or with control elements
    • G21C19/115—Lifting devices or pulling devices adapted for co-operation with fuel elements or with control elements with latching devices and ball couplings
    • 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)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

A guide tube, lockable to the control rod head, slides axially along a sheath inside the top of the reactor protection vessel. The upper end of the guide tube pref. has a flange for lifting by the grab; thus the control rod can be supported wh ile the grab m mechanism remains out of the hot reactor gases. The locking mechanism pref. consists of a cylindrical cage supporting an assembly or balls located within opposite necks in the guide tube and control rod head. The guide tube can be turned to bring bosses in its neck against the balls and push them into the neck on the control rod head.
FR6918571A 1969-06-05 1969-06-05 Retractable guide tube for control rod grab Expired FR2045598A7 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6918571A FR2045598A7 (en) 1969-06-05 1969-06-05 Retractable guide tube for control rod grab

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6918571A FR2045598A7 (en) 1969-06-05 1969-06-05 Retractable guide tube for control rod grab

Publications (1)

Publication Number Publication Date
FR2045598A7 true FR2045598A7 (en) 1971-03-05

Family

ID=9035211

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6918571A Expired FR2045598A7 (en) 1969-06-05 1969-06-05 Retractable guide tube for control rod grab

Country Status (1)

Country Link
FR (1) FR2045598A7 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0008253A1 (en) * 1978-07-28 1980-02-20 Novatome Automatically actuated gripper
EP0120275A1 (en) * 1983-03-11 1984-10-03 Syspro Tool carrier for an industrial robot
US11289222B2 (en) 2018-03-16 2022-03-29 Framatome Inc. Method and device for unlatching control rod drive shafts in pressurized water reactors

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0008253A1 (en) * 1978-07-28 1980-02-20 Novatome Automatically actuated gripper
FR2431907A1 (en) * 1978-07-28 1980-02-22 Novatome Ind AUTOMATIC GRAPPLE
EP0120275A1 (en) * 1983-03-11 1984-10-03 Syspro Tool carrier for an industrial robot
US11289222B2 (en) 2018-03-16 2022-03-29 Framatome Inc. Method and device for unlatching control rod drive shafts in pressurized water reactors

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