GB1085382A - Creación de Inventos y Patentes con Inteligencia Artificial

GB1085382A – Closure method and means for the ends of nuclear fuel rods having a very thin sheath
– Google Patents

GB1085382A – Closure method and means for the ends of nuclear fuel rods having a very thin sheath
– Google Patents
Closure method and means for the ends of nuclear fuel rods having a very thin sheath

Info

Publication number
GB1085382A

GB1085382A
GB5189/65A
GB518965A
GB1085382A
GB 1085382 A
GB1085382 A
GB 1085382A
GB 5189/65 A
GB5189/65 A
GB 5189/65A
GB 518965 A
GB518965 A
GB 518965A
GB 1085382 A
GB1085382 A
GB 1085382A
Authority
GB
United Kingdom
Prior art keywords
sheath
plug
ferrule
edge
fuel
Prior art date
1964-02-13
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
GB5189/65A
Inventor
Lucien Alfille
Jean-Pierre Bocquet
Roger Chaignon
Aime Pramaggiore
Georges Valentin
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.)

European Atomic Energy Community Euratom

Original Assignee
European Atomic Energy Community Euratom
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.)
1964-02-13
Filing date
1965-02-05
Publication date
1967-09-27

1965-02-05
Application filed by European Atomic Energy Community Euratom
filed
Critical
European Atomic Energy Community Euratom

1967-09-27
Publication of GB1085382A
publication
Critical
patent/GB1085382A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

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

G21C3/02—Fuel elements

G21C3/04—Constructional details

G21C3/06—Casings; Jackets

G21C3/10—End closures ; Means for tight mounting therefor

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

1,085,382. Fuel elements. EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM). Feb. 5, 1965 [Feb. 13, 1964], No. 5189/65. Heading G6C. The end of a flexible metal sheath into which nuclear fuel is inserted to constitute a fuel rod is closed by inserting the fuel in the sheath so that one end of the sheath extends beyond the corresponding end of the fuel, inserting in this end of the sheath a metal plug having a peripheral outwardly raised edge until the sheath projects beyond the edge of the plug, mounting a metal ferrule around the end of the sheath in correspondence with the edge of the plug, and heating the extending end of the sheath and the adjoining parts of the ferrule and plug so as to weld the sheath, ferrule and plug together. The thicknesses of the plug edge and the ferrule are substantially greater than that of the sheath whereby a portion of the welding heat is dissipated in the plug edge and the ferrule sufficient to prevent breakdown of the sheath. The thickness of the ferrule is preferably at least as great as that of the plug edge. The method of closure is described with particular reference to the fuel rod of Specification 978,737 which has a stainless steel sheath of thickness less than 0À1 mm. Several embodiments are described and in that shown in Fig. 5, in order to provide axial locking of a steel sheath 1 between a plug 7 and a ferrule 10, both also of steel, the upturned edge 9 of the plug comprises a flange 15 joined to the edge 9 by a curved junction 16 to allow inward folding of the sheath 1 by plastic deformation, and the ferrule 10 comprises an upper flange 171 locking the folded end of the sheath 1. The right-hand side of the Figure shows the assembly before welding, the arrow 11 indicating the direction in which the welding device is pointed, while the lefthand side shows the completed fuel rod with the sheath 1, the plug 7 and the ferrule 10 being joined by a weld 12. The ends of the plug 7 and ferrule 10 opposite to the weld 12 are rounded so as to prevent the sheath 1 from being cut or broken during swelling or contraction of the latter. The application of the invention to the closure of a sheath for which the use of a massive plug 18, through which thermocouples may extend, for instance, makes it necessary to resort to lateral welding of the sheath to a turned edge formed by a lateral flange 19 is shown in Fig. 6. The flange 19 is provided with a curved junction with the plug body such as to allow flaring of the sheath 1, ferrule 10 also having a curved edge corresponding to that of the flange 19 and, outwardly thereof, having a chamfered edge 20 adapted for the reception of the melt forming the weld 12.

GB5189/65A
1964-02-13
1965-02-05
Closure method and means for the ends of nuclear fuel rods having a very thin sheath

Expired

GB1085382A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

BE516549

1964-02-13

Publications (1)

Publication Number
Publication Date

GB1085382A
true

GB1085382A
(en)

1967-09-27

Family
ID=3844883
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB5189/65A
Expired

GB1085382A
(en)

1964-02-13
1965-02-05
Closure method and means for the ends of nuclear fuel rods having a very thin sheath

Country Status (9)

Country
Link

US
(1)

US3268411A
(en)

BE
(1)

BE643749A
(en)

DE
(1)

DE1489818A1
(en)

ES
(1)

ES307908A1
(en)

FR
(1)

FR1423478A
(en)

GB
(1)

GB1085382A
(en)

IL
(1)

IL22860A
(en)

LU
(2)

LU47950A1
(en)

NL
(1)

NL6500708A
(en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB1094564A
(en)

1964-04-07
1967-12-13
Atomic Energy Authority Uk
Nuclear reactor fuel elements

BE651738A
(en)

1964-08-12
1965-02-12

US3466226A
(en)

1966-01-26
1969-09-09
Gen Electric
Nuclear fuel element

Family Cites Families (3)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB848723A
(en)

1957-11-12
1960-09-21
Parsons C A & Co Ltd
Improvements in and relating to fuel elements for nuclear reactors

BE584698A
(en)

1958-11-18

GB925863A
(en)

1961-03-24
1963-05-08
Atomic Energy Authority Uk
Improvements in or relating to nuclear fuel elements

1964

1964-02-13
BE
BE643749A
patent/BE643749A/xx
unknown

1965

1965-01-08
ES
ES0307908A
patent/ES307908A1/en
not_active
Expired

1965-01-11
DE
DE1965E0028495
patent/DE1489818A1/en
active
Pending

1965-01-20
NL
NL6500708A
patent/NL6500708A/xx
unknown

1965-01-27
IL
IL22860A
patent/IL22860A/en
unknown

1965-02-04
FR
FR4342A
patent/FR1423478A/en
not_active
Expired

1965-02-05
GB
GB5189/65A
patent/GB1085382A/en
not_active
Expired

1965-02-09
LU
LU47950A
patent/LU47950A1/xx
unknown

1965-02-10
LU
LU47955A
patent/LU47955A1/xx
unknown

1965-02-15
US
US433545A
patent/US3268411A/en
not_active
Expired – Lifetime

Also Published As

Publication number
Publication date

LU47950A1
(en)

1965-04-09

LU47955A1
(en)

1965-04-12

DE1489818A1
(en)

1969-08-07

IL22860A
(en)

1968-11-27

ES307908A1
(en)

1967-02-01

BE643749A
(en)

1964-08-13

NL6500708A
(en)

1965-08-16

US3268411A
(en)

1966-08-23

FR1423478A
(en)

1966-01-03

Información de contacto