GB1462225A – Nuclear reactor
– Google Patents
GB1462225A – Nuclear reactor
– Google Patents
Nuclear reactor
Info
Publication number
GB1462225A
GB1462225A
GB1687174A
GB1687174A
GB1462225A
GB 1462225 A
GB1462225 A
GB 1462225A
GB 1687174 A
GB1687174 A
GB 1687174A
GB 1687174 A
GB1687174 A
GB 1687174A
GB 1462225 A
GB1462225 A
GB 1462225A
Authority
GB
United Kingdom
Prior art keywords
fuel element
latch
mounting arrangement
fuel
recess
Prior art date
1973-04-19
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
GB1687174A
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.)
Siemens AG
Original Assignee
Siemens AG
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.)
1973-04-19
Filing date
1974-04-17
Publication date
1977-01-19
1974-04-17
Application filed by Siemens AG
filed
Critical
Siemens AG
1977-01-19
Publication of GB1462225A
publication
Critical
patent/GB1462225A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
G21C—NUCLEAR REACTORS
G21C5/00—Moderator or core structure; Selection of materials for use as moderator
G21C5/02—Details
G21C5/06—Means for locating or supporting fuel 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
1462225 Fuel elements SIEMENS AG 17 April 1974 [19 April 1973] 16871/74 Heading G6C A nuclear reactor, in particular a gas-cooled fast breeder reactor, has a core which includes one or more fuel elements suspended from an upper core part by a primary mounting arrangement and is further provided with a lockable safety mounting arrangement disposed below the primary mounting arrangement, the safety mounting arrangement, when released, enabling the fuel element(s) to be drawn downwards within the reactor core. In one embodiment (Fig. 1) the upper end of a fuel element 1 is provided with a suspension arrangement (not shown) constituting the primary mounting arrangement and consisting of a screwed fastening which transmits the weight of the fuel element to an upper core structure. The safety mounting arrangement comprises a support member 6 through which a rod 4 extends. The support member 6 is connected via a screwed ring 9 and ribs 8 with a nozzle 7 fixed to the lower end of the shell 2 of the fuel element 1. A rotationally symmetrical latch 13 composed of individual pivotal segments has vertical projecting members 14 which engage in grooves 15 in a latch body 16 screwed into the lower end of the support member 6 at 17. In the locking position (c.f. right-hand side) of a locking member 20 the latch 13 is engaged in a recess 12 close to the lower end of the rod 4. However, if the locking member 20 is lifted (c.f. left-hand side), as by means of a charging machine equipped with a special tool (not shown), its lower end frees the latch 13 to such an extent that it no longer engages in the recess 12 and it may be pivoted by means of the above special tool. Thus the rod 4 can be drawn out of the support member 6, or the fuel element 1 itself can be drawn downwards. This permits normal removal of the fuel element 1 when a fuel element change is required. In an alternative embodiment (Fig. 2) a connection between two neighbouring fuel elements 1 is effected in the region of the nozzles 7. In the locked position a latch 26 of one fuel element projects through an aperture 25 in that fuel element and a portion 27 of the latch engages a recess 28 in the neighbouring fuel element. This recess 28 is formed by a part 29 secured to the outside of the nozzle 7 and formed from a particularly resistant material so as to be able to support a fuel element by means of its neighbouring fuel elements. The latch 26 is associated with a locking member 30 which is illustrated in the locking position. When the locking member 30 is lifted out of this position, the latch 26 may be pivoted and the connection with the neighbouring fuel element released. For uniform loading, a latch as shown in Fig. 2 can be provided at several places about the periphery of each fuel element.
GB1687174A
1973-04-19
1974-04-17
Nuclear reactor
Expired
GB1462225A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE2320146A
DE2320146C3
(en)
1973-04-19
1973-04-19
Nuclear reactor
Publications (1)
Publication Number
Publication Date
GB1462225A
true
GB1462225A
(en)
1977-01-19
Family
ID=5878771
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1687174A
Expired
GB1462225A
(en)
1973-04-19
1974-04-17
Nuclear reactor
Country Status (5)
Country
Link
BE
(1)
BE813878A
(en)
CA
(1)
CA1024271A
(en)
DE
(1)
DE2320146C3
(en)
FR
(1)
FR2226726B1
(en)
GB
(1)
GB1462225A
(en)
Families Citing this family (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4298434A
(en)
*
1978-11-13
1981-11-03
Combustion Engineering, Inc.
Bottom mounted fuel holddown mechanism
FR2517867B1
(en)
*
1981-12-04
1986-08-22
Framatome Sa
DEVICE FOR FIXING A FUEL ASSEMBLY ON THE LOWER HEART SUPPORT PLATE, IN A NUCLEAR REACTOR
1973
1973-04-19
DE
DE2320146A
patent/DE2320146C3/en
not_active
Expired
1974
1974-04-17
FR
FR7413355A
patent/FR2226726B1/fr
not_active
Expired
1974-04-17
GB
GB1687174A
patent/GB1462225A/en
not_active
Expired
1974-04-18
BE
BE143340A
patent/BE813878A/en
unknown
1974-04-18
CA
CA197,762A
patent/CA1024271A/en
not_active
Expired
Also Published As
Publication number
Publication date
CA1024271A
(en)
1978-01-10
FR2226726B1
(en)
1979-01-26
BE813878A
(en)
1974-08-16
DE2320146A1
(en)
1974-11-14
DE2320146C3
(en)
1978-07-20
DE2320146B2
(en)
1977-11-24
FR2226726A1
(en)
1974-11-15
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Legal Events
Date
Code
Title
Description
1977-06-01
PS
Patent sealed
1981-11-18
PCNP
Patent ceased through non-payment of renewal fee
