GB1503841A - Method of winding spacer wires around nuclear fuel rods - Google Patents

Method of winding spacer wires around nuclear fuel rods

Info

Publication number
GB1503841A
GB1503841A GB135/76A GB13576A GB1503841A GB 1503841 A GB1503841 A GB 1503841A GB 135/76 A GB135/76 A GB 135/76A GB 13576 A GB13576 A GB 13576A GB 1503841 A GB1503841 A GB 1503841A
Authority
GB
United Kingdom
Prior art keywords
fuel rod
wire
fuel
carriage
spacer
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
GB135/76A
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1503841A publication Critical patent/GB1503841A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
    • G21C3/30—Assemblies of a number of fuel elements in the form of a rigid unit
    • G21C3/32—Bundles of parallel pin-, rod-, or tube-shaped fuel elements
    • G21C3/336—Spacer elements for fuel rods in the bundle
    • G21C3/338—Helicoidal spacer 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

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

1503841 Winding helices WESTING- HOUSE ELECTRIC CORP 5 Jan 1976 [10 Jan 1975] 135/76 Heading B3E [Also in Division G6] In a method of winding a solid spacer w re 13 around a nuclear fuel rod 12, the spacer wire being flattened at predetermined locations 25 on the fuel rod, the spacer wire is paid out from a carriage 35 moving axially along the fuel rod while the fuel rod is rotated for winding the wire on the fuel rod, the wire 13 being flattened by means on the carriage 35 before it is paid out to be wound on the fuel rod. The spacer wire 13 is flattened to such an extent that the coolant flow cross-section, within a fuel assembly comprising a plurality of such fuel rods within a shroud, between two adjacent outer fuel rods and the shroud is equal to that between three adjacent inner fuel rods. The spacer wire 13 may be welded at one or both ends of the fuel rod 12, and intermittently along its length. The rotation of the fuel rod 12 is synchronized with the horizontal motion of the carriage 35 along a lead screw 34, thus causing the wire 13 to form a predetermined pitch angle on to the fuel rod 12. A pair of forming rollers 36 is located within the carriage 35 for forming the round wire into an elliptical or other flattened shape at precise intervals. An actuator mechanism 37 is attached to one of the rollers 36 having a movable axis in order to apply the pressure necessary to cold form the wire. The other roller 36 has a fixed axis and is driven in synchronisation with the rotating fuel rod.
GB135/76A 1975-01-10 1976-01-05 Method of winding spacer wires around nuclear fuel rods Expired GB1503841A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US54021075A 1975-01-10 1975-01-10

Publications (1)

Publication Number Publication Date
GB1503841A true GB1503841A (en) 1978-03-15

Family

ID=24154474

Family Applications (1)

Application Number Title Priority Date Filing Date
GB135/76A Expired GB1503841A (en) 1975-01-10 1976-01-05 Method of winding spacer wires around nuclear fuel rods

Country Status (4)

Country Link
JP (1) JPS5195590A (en)
DE (1) DE2600231A1 (en)
FR (1) FR2297480A1 (en)
GB (1) GB1503841A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111477353A (en) * 2020-05-25 2020-07-31 中国原子能科学研究院 Fuel rod with variable pitch winding positioning structure
CN113643836A (en) * 2021-08-09 2021-11-12 中国科学院近代物理研究所 Method for processing visual fuel rod of lead-cooled fast reactor

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1137748B (en) * 1981-07-23 1986-09-10 Fabbricazioni Nucleari Spa AUTOMATIC METHOD FOR WINDING AND FIXING A METAL WIRE SPACER ON NUCLEAR FUEL BARS AND MACHINE FOR ITS IMPLEMENTATION
GB2129187A (en) * 1982-09-27 1984-05-10 Westinghouse Electric Corp Method for wire wrapping nuclear fuel pins
FR2624300B1 (en) * 1987-12-07 1990-03-23 Commissariat Energie Atomique MACHINE FOR REMOVING THE SPACER THREAD FROM NUCLEAR FUEL NEEDLES
CN113571210B (en) * 2021-08-09 2023-08-22 中国科学院近代物理研究所 Gear synchronous positioning device and use method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2069948A1 (en) * 1969-12-12 1971-09-10 Commissariat Energie Atomique Nuclear fuel element

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111477353A (en) * 2020-05-25 2020-07-31 中国原子能科学研究院 Fuel rod with variable pitch winding positioning structure
CN113643836A (en) * 2021-08-09 2021-11-12 中国科学院近代物理研究所 Method for processing visual fuel rod of lead-cooled fast reactor
CN113643836B (en) * 2021-08-09 2023-08-01 中国科学院近代物理研究所 Visual fuel rod processing method of lead cold fast reactor

Also Published As

Publication number Publication date
JPS5195590A (en) 1976-08-21
FR2297480A1 (en) 1976-08-06
FR2297480B1 (en) 1981-12-31
DE2600231A1 (en) 1976-07-15

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee