GB1366450A - System for axial locking of the fuel assemblies of a nuclear reac tor - Google Patents
System for axial locking of the fuel assemblies of a nuclear reac torInfo
- Publication number
- GB1366450A GB1366450A GB5987572A GB5987572A GB1366450A GB 1366450 A GB1366450 A GB 1366450A GB 5987572 A GB5987572 A GB 5987572A GB 5987572 A GB5987572 A GB 5987572A GB 1366450 A GB1366450 A GB 1366450A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- assemblies
- bearing surface
- assembly
- diagrid
- 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
Links
- 230000000712 assembly Effects 0.000 title abstract 8
- 238000000429 assembly Methods 0.000 title abstract 8
- 239000000446 fuel Substances 0.000 title abstract 2
- 239000002826 coolant Substances 0.000 abstract 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000000284 resting effect Effects 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
1366450 Reactors ELECTRICITE DE FRANCE 28 Dec 1972 [7 Jan 1972] 59875/72 Heading G6C In a sodium-cooled fast reactor, the core assemblies 17, 17a are supported between a diagrid 7 and a core lid 25. Support stools 11 extend through apertures 12 in a bottom support grid 4 and are locked in position by mounting nuts 14 on threaded end portions 13 of the stools, while their opposite ends traverse a plate 8 of the diagrid and are locked with respect thereto by means of annular nuts 16. Each core assembly 17, 17a comprises a metallic casing 18 formed with a lower end-fitting 19 of smaller cross-sectional area which penetrates into a corresponding support stool 11. Sodium coolant enters the space between the diagrid plate 8 and the support grid 4 via an aperture 6 in the pressure vessel 2 and passes into the support stools 11 through slots 21 and then flows upwardly into the core assemblies 17, 17a. The latter include canned fuel pins 22 containing either a fissile or a fertile material. The outer core assemblies may alternatively comprise reflector assemblies surrounded by neutronabsorbing assemblies. The upper end of each casing 18 comprises a head 23 which has an axial opening for the escape of coolant and which terminates in a conical bearing surface 24. Coolant outlets 29 are positioned in the core lid 25 so as to be exactly opposite the core assemblies, each outlet 29 being formed at its lower end with a conical bearing surface 30 capable of co-operating with the bearing surface 24 of the corresponding core assembly, The core lid 25 is supported by means of an annular flange 26 resting on a shoulder 10 of a cylindrical sidewall of the diagrid 7, being guided with respect to the latter by a positioning sleeve 27. Only two core assemblies are shown, assembly 17 being in the inoperative position as during reactor shut-down, while the assembly 17a is in. the operative position in which it is lifted by the coolant pressure so that its bearing surface 24 engages the corresponding bearing surface 30 in the lid 25, whereby the assembly 17a is axially locked.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7200501A FR2166312B1 (en) | 1972-01-07 | 1972-01-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1366450A true GB1366450A (en) | 1974-09-11 |
Family
ID=9091604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5987572A Expired GB1366450A (en) | 1972-01-07 | 1972-12-28 | System for axial locking of the fuel assemblies of a nuclear reac tor |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE793360A (en) |
| DE (1) | DE2300242A1 (en) |
| FR (1) | FR2166312B1 (en) |
| GB (1) | GB1366450A (en) |
| IT (1) | IT982427B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3223798A1 (en) * | 1981-06-26 | 1983-01-13 | Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa | Device for holding fuel elements |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61182592A (en) * | 1985-02-05 | 1986-08-15 | ウエスチングハウス エレクトリック コ−ポレ−ション | Nuclear fuel aggregate of nuclear reactor |
| CN115862902B (en) * | 2022-09-22 | 2024-05-14 | 中国原子能科学研究院 | Reactor with a reactor body |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1210962A (en) * | 1957-09-18 | 1960-03-11 | Acf Ind | Nuclear Reactor Fuel Element Assembly |
-
0
- BE BE793360D patent/BE793360A/en unknown
-
1972
- 1972-01-07 FR FR7200501A patent/FR2166312B1/fr not_active Expired
- 1972-12-28 GB GB5987572A patent/GB1366450A/en not_active Expired
- 1972-12-29 IT IT71167/72A patent/IT982427B/en active
-
1973
- 1973-01-04 DE DE2300242A patent/DE2300242A1/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3223798A1 (en) * | 1981-06-26 | 1983-01-13 | Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa | Device for holding fuel elements |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2300242A1 (en) | 1973-07-12 |
| FR2166312A1 (en) | 1973-08-17 |
| BE793360A (en) | 1973-04-16 |
| IT982427B (en) | 1974-10-21 |
| FR2166312B1 (en) | 1974-12-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB931139A (en) | Nuclear reactor | |
| GB907816A (en) | Merchant marine ship reactor | |
| GB1427673A (en) | Fast reactor which in operations is cooled by circulation of liquid metal | |
| GB1151678A (en) | Breeder Reactor | |
| ES381826A1 (en) | Nuclear reactor core and shroud | |
| GB852293A (en) | Improvements in boiling reactors | |
| GB1401142A (en) | Diagrids used in nuclear reactors and to nuclear rectors incorporating such diagrids | |
| GB1279084A (en) | Improvements in or relating to nuclear reactors | |
| GB1512578A (en) | Nuclear reactors | |
| US3743577A (en) | Single fluid molten salt nuclear breeder reactor | |
| GB924213A (en) | Improvements in or relating to fuel element holders for boiling-water atomic reactors | |
| US2926127A (en) | Neutronic reactor with accessible thimble and emergency cooling features | |
| US4746488A (en) | Hydraulic holding down device for a nuclear fuel assembly | |
| GB1366450A (en) | System for axial locking of the fuel assemblies of a nuclear reac tor | |
| GB818667A (en) | Improved construction of the cover of a heterogeneous nuclear reactor | |
| GB1139969A (en) | Fuel assemblies for nuclear reactors | |
| GB974726A (en) | Nuclear reactor | |
| GB949020A (en) | Improvements in or relating to supporting structures for pressure vessels and the like | |
| GB1497755A (en) | Nuclear reactor core cover plug | |
| GB1441539A (en) | Fast reactor of the liquid sodium cooled type | |
| GB1069025A (en) | Nuclear reactor | |
| ES440633A1 (en) | Structure for reducing convection currents within the pressure vessel of a fast reactor | |
| GB943118A (en) | Nuclear reactors | |
| GB868678A (en) | Improvements in or relating to nuclear reactors | |
| GB1345832A (en) | Method of operating a nuclear reactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |