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(12) Demande de brevet: (11) CA 2766583
(54) Titre français: DISPOSITIF ET METHODES DE MANIPULATION DE MATERIAUX DESTINES AU RETUBAGE D'UN REACTEUR NUCLEAIRE
(54) Titre anglais: METHODS AND APPARATUS FOR HANDLING MATERIALS FOR RETUBING OF A NUCLEAR REACTOR
(51) Classification internationale des brevets (CIB):
  • G21C 17/017 (2006.01)
  • G21C 19/10 (2006.01)
  • G21C 21/00 (2006.01)
(72) Inventeurs (Pays):
  • FRANCIS, CHRIS DUDLEY (Canada)
  • CHUNG, SUNG HWAN (Canada)
  • MURDOCH, BRYAN JOHN (Canada)
(73) Titulaires (Pays):
  • ATOMIC ENERGY OF CANADA LIMITED (Canada)
(71) Demandeurs (Pays):
  • ATOMIC ENERGY OF CANADA LIMITED (Canada)
(74) Agent: NORTON ROSE FULBRIGHT CANADA LLP/S.E.N.C.R.L., S.R.L.
(45) Délivré:
(22) Date de dépôt: 2012-01-16
(41) Mise à la disponibilité du public: 2012-07-17
Requête d’examen: 2016-10-20
(30) Licence disponible: S.O.
(30) Langue des documents déposés: Anglais

(30) Données de priorité de la demande:
Numéro de la demande Pays Date
61/433,398 Etats-Unis d'Amérique 2011-01-17

Abrégé anglais





A method of calandria tube volume reduction during calandria tube replacement.
The method
includes the steps of removing at least one of an end fitting, a pressure
tube, a calandria tube, and
a garter spring from a CANDU reactor at the reactor face; placing at least one
of an end fitting, a
pressure tube, a calandria tube, and a garter spring into a flask at the
reactor face; transporting
the flask away from the reactor; removing at least one of an end fitting, a
pressure tube, a
calandria tube, and a garter spring from the flask; and performing volume
reduction on the at
least one of an end fitting, a pressure tube, a calandria tube, and a garter
spring.


Note : Les revendications sont présentées dans la langue officielle dans laquelle elles ont été soumises.




CLAIMS

What is claimed is:


1. A method of calandria tube volume reduction during calandria tube
replacement, the
method comprising:

removing at least one of an end fitting, a pressure tube, a calandria tube,
and a garter
spring from a CANDU reactor at the reactor face;

placing the at least one of an end fitting, a pressure tube, a calandria tube,
and a garter
spring into a flask at the reactor face;

transporting the flask away from the reactor;

removing the at least one of an end fitting, a pressure tube, a calandria
tube, and a garter
spring from the flask; and

performing volume reduction on the at least one of an end fitting, a pressure
tube, a
calandria tube, and a garter spring.

2. The method of claim 1, wherein performing volume reduction further
comprises
performing volume reduction inside a vault containing the reactor.

3. The method of claim 1, wherein transporting the flask away from the reactor
further
comprises transporting the flask outside of a building containing the reactor.

4. The method of claim 1, further comprising returning the flask to the
reactor.

5. The method of claim 1, wherein an end fitting is removed in substantially
one piece.
22




6. The method of claim 1, wherein a pressure tube, a calandria tube, and a
garter spring are
removed as substantially one piece.

7. The method of claim 1, wherein removing at least one of an end fitting, a
pressure tube, a
calandria tube, and a garter spring from a CANDU reactor at the reactor face
comprises
mounting an empty flask onto the reactor face.

8. The method of claim 1, wherein transporting the flask away from the reactor
comprises
lifting the flask with a crane onto a trolley.

9. The method of claim 1, wherein transporting the flask away from the reactor
comprises
placing the flask onto a trolley system within the building containing the
reactor.

10. The method of claim 8, wherein transporting the flask away from the
reactor further
comprises loading the flask onto a truck using a gantry.

11. A method of calandria tube volume reduction during calandria tube
replacement, the
method comprising:

removing at least one of an end fitting, a pressure tube, a calandria tube,
and a garter
spring from a CANDU reactor at the reactor face;

placing the at least one of an end fitting, a pressure tube, a calandria tube,
and a garter
spring into a flask at the reactor face;

transporting the flask outside a vault containing the reactor;

removing the at least one of an end fitting, a pressure tube, a calandria
tube, and a garter
spring from the flask; and

performing volume reduction on the at least one of an end fitting, a pressure
tube, a
calandria tube, and a garter spring.

23




12. The method of claim 11, wherein transporting the flask outside a vault
containing the
reactor further comprises transporting the flask outside of a building
containing the reactor.
13. The method of claim 11, further comprising returning the flask to the
reactor.

14. The method of claim 11, wherein an end fitting is removed in substantially
one piece.

15. The method of claim 11, wherein a pressure tube, a calandria tube, and a
garter spring are
removed as substantially one piece.

16. The method of claim 11, wherein removing at least one of an end fitting, a
pressure tube,
a calandria tube, and a garter spring from a CANDU reactor at the reactor face
comprises
mounting an empty flask onto the reactor face.

17. The method of claim 11, wherein transporting the flask away from the
reactor comprises
lifting the flask with a crane onto a trolley.

18. The method of claim 11, wherein transporting the flask away from the
reactor comprises
placing the flask onto a trolley system within a building containing the
reactor.

19. The method of claim 18, wherein transporting the flask away from the
reactor further
comprises loading the flask onto a truck using a gantry.

20. A material handling system for use during retubing of a CANDU reactor,
comprising:

a track system comprising a plurality of track sections, wherein the track
sections include
at least one curved track section; and

24




a trolley comprising a cargo bed, at least two wheel trucks operatively
coupled to the
cargo bed, and a guide mechanism for interacting with the track system,

wherein at least one of the wheel trucks pivots relative to the cargo bed.

21. The material handling system of claim 20, wherein each of the plurality of
track sections
comprises at least two adjacent rails, wherein the guide mechanism of the
trolley comprises
flanged wheels attached to the at least two wheel trucks, and wherein the
flanged wheels are
spaced to align with the rails of the track sections.

22. The material handling system of claim 20, wherein each of the plurality of
track sections
comprises a rail, and wherein the guide mechanism of the trolley comprises a
carriage in contact
with the rail.

23. The material handling system of claim 20, further comprising a side-shift
assembly to
link two portions of the track system.

24. The material handling system of claim 23, wherein the side-shift assembly
comprises two
track sections on a moveable sole plate, at least one of the two track
sections being a curved
track section.

25. The material handling system of claim 24, wherein the side-shift assembly
comprises a
curved track section and a straight track section.

26. The material handling system of claim 23, wherein the side-shift assembly
is near the
reactor.





27. The material handling system of claim 20, wherein the wheel trucks each
comprise a
plurality of wheels and wherein the trolley further comprises a motor
operatively coupled to the
at least one of the wheels to propel the trolley.

28. The material handling system of claim 20, wherein the cargo bed of the
trolley further
comprises a removable cargo nest.

29. The material handling system of claim 20, wherein at least one track
section is attached to
a sole plate.

30. The material handling system of claim 29, wherein the sole plate comprises
a jacking
mechanism for leveling the sole plate.

31. The material handling system of claim 29, wherein the sole plate is
coupled to a floor.
32. The material handling system of claim 20, further comprising a flask for
holding an
element of the reactor in substantially one piece.

33. The material handling system of claim 32, wherein the element of the
reactor is an end
fitting.

34. The material handling system of claim 32, wherein the element of the
reactor is a
pressure tube-calandria tube-garter spring assembly.

35. The material handling system of claim 32, wherein the flask comprises a
metal tube
having at least one removable end.

26


Une figure unique qui représente un dessin illustrant l’invention.

Pour une meilleure compréhension de l’état de la demande ou brevet qui figure sur cette page, la rubrique Mise en garde , et les descriptions de Brevet , États administratifs , Taxes périodiques et Historique des paiements devraient être consultées.

États admin

Titre Date
(22) Dépôt 2012-01-16
(41) Mise à la disponibilité du public 2012-07-17
Requête d'examen 2016-10-20

Taxes périodiques

Description Date Montant
Dernier paiement 2017-12-15 200,00 $
Prochain paiement si taxe applicable aux petites entités 2019-01-16 100,00 $
Prochain paiement si taxe générale 2019-01-16 200,00 $

Avis : Si le paiement en totalité n’a pas été reçu au plus tard à la date indiquée, une taxe supplémentaire peut être imposée, soit une des taxes suivantes :

  • taxe de rétablissement prévue à l’article 7 de l’annexe II des Règles sur les brevets ;
  • taxe pour paiement en souffrance prévue à l’article 22.1 de l’annexe II des Règles sur les brevets ; ou
  • surtaxe pour paiement en souffrance prévue aux articles 31 et 32 de l’annexe II des Règles sur les brevets.

Historique des paiements

Type de taxes Anniversaire Échéance Montant payé Date payée
Dépôt 400,00 $ 2012-01-16
Taxe périodique - Demande - nouvelle loi 2 2014-01-16 100,00 $ 2014-01-03
Taxe périodique - Demande - nouvelle loi 3 2015-01-16 100,00 $ 2015-01-13
Taxe périodique - Demande - nouvelle loi 4 2016-01-18 100,00 $ 2016-01-04
Requête d'examen 800,00 $ 2016-10-20
Taxe périodique - Demande - nouvelle loi 5 2017-01-16 200,00 $ 2017-01-04
Taxe périodique - Demande - nouvelle loi 6 2018-01-16 200,00 $ 2017-12-15

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Filtre Télécharger sélection en format PDF (archive Zip)
Description du
Document
Date
(yyyy-mm-dd)
Nombre de pages Taille de l’image (Ko)
Abrégé 2012-01-16 1 16
Description 2012-01-16 21 1 013
Revendications 2012-01-16 5 144
Dessins 2012-01-16 24 710
Dessins représentatifs 2012-03-13 1 31
Page couverture 2012-07-10 1 63
Dessins 2017-02-02 24 688
Revendications 2017-02-02 3 88
Description 2017-02-02 22 1 178
Abrégé 2017-02-02 1 16
Poursuite-Amendment 2016-10-20 1 53
Poursuite-Amendment 2016-11-02 4 220
Poursuite-Amendment 2016-10-24 1 31
Poursuite-Amendment 2017-02-02 72 3 079
Poursuite-Amendment 2017-02-15 4 193
Poursuite-Amendment 2017-05-15 9 229
Description 2017-05-15 22 1 104
Revendications 2017-05-15 4 93