GB1461288A - Fuel assembly for a high-power nuclear reactor - Google Patents
Fuel assembly for a high-power nuclear reactorInfo
- Publication number
- GB1461288A GB1461288A GB1957674A GB1957674A GB1461288A GB 1461288 A GB1461288 A GB 1461288A GB 1957674 A GB1957674 A GB 1957674A GB 1957674 A GB1957674 A GB 1957674A GB 1461288 A GB1461288 A GB 1461288A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pins
- fuel
- diameter
- fuel pins
- wire
- 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
- 239000000446 fuel Substances 0.000 title abstract 19
- 230000002093 peripheral effect Effects 0.000 abstract 5
- 229910001220 stainless steel Inorganic materials 0.000 abstract 2
- 239000010935 stainless steel Substances 0.000 abstract 2
- 238000005452 bending Methods 0.000 abstract 1
- 238000000059 patterning Methods 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
- 230000008961 swelling Effects 0.000 abstract 1
- 230000008719 thickening Effects 0.000 abstract 1
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)
- Fuel-Injection Apparatus (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
1461288 Fuel elements COMMISSARIAT A L'ENERGIE ATOMIQUE 3 May 1974 [4 May 1973] 19576/74 Heading G6C A fuel assembly comprises within a polygonal outer can 3 a cluster of fuel pins 4 retained parallel to one another at the junctions of a regular network with a bracing or support wire wound as a coarse helix between the two end plugs 5, 6 of each fuel pin 4. At least the non- peripheral fuel pins 4, i.e. those not in contact with the outer cam 3, belong to one of two types 1 and 2, one of the types (e.g. type 1 as in the Figure 5 embodiment) having a bracing or support wire 9 of diameter d 1 equal to the maximum spacing which exists between two adjacent fuel pins when in operation and the other type (e.g. type 2) having a bracing or support wire 11 of diameter d 2 less than the diameter d 1 . The cross-sections of the wires 9, 11 are indicated in Fig. 5 by 10, 12, respectively. The fuel pins 4 are clad in stainless steel sheaths, the end plugs 5, 6, wires 9, 11 and the outer can 3 also being of stainless steel. The above arrangement of two types of fuel pin with support wires of different diameter obviates some of the contact points otherwise occurring between adjacent fuel pins so as to facilitate longitudinal bending of the pins resulting from distortion and swelling of the pins during irradiation while making it impossible for adjacent pins to contact one another other than via support wires. As regards the peripheral fuel pins, either only those having a d 1 -diameter wire are placed at the periphery or, alternatively, both type fuel pins are placed peripherally in an arrangement similar to the fuel pins inside the cluster. Those fuel pins having a d 2 -diameter wire can then be arranged to bear on the can 3 only at the top plug 5, e.g. by using a large diameter plug, or the d 2 - diameter wires can be sheathed by tubular pieces of outside diameter d 1 at regular intervals so as to maintain a spacing d 1 between the outer can 3 and the peripheral fuel pins. Alternatively, each peripheral fuel pin has a d 2 -diameter wire with regular sheathing of the wire of some of the peripheral fuel pins by means of d 1 - diameter tubular members disposed opposite adjacent fuel pins so as to achieve a similar patterning to that specified for the inner fuel pins of the cluster. The cam 3 may be formed with longitudinal thickenings and/or longitudinal recesses on its inside surface.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7316249A FR2228275B1 (en) | 1973-05-04 | 1973-05-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1461288A true GB1461288A (en) | 1977-01-13 |
Family
ID=9118854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1957674A Expired GB1461288A (en) | 1973-05-04 | 1974-05-03 | Fuel assembly for a high-power nuclear reactor |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE813810A (en) |
| ES (1) | ES425917A1 (en) |
| FR (1) | FR2228275B1 (en) |
| GB (1) | GB1461288A (en) |
| IT (1) | IT1011790B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112071441A (en) * | 2020-08-10 | 2020-12-11 | 岭东核电有限公司 | Novel fuel assembly with spiral structure fuel rod |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59200991A (en) * | 1983-04-28 | 1984-11-14 | 株式会社日立製作所 | Fuel assembly |
-
1973
- 1973-05-04 FR FR7316249A patent/FR2228275B1/fr not_active Expired
-
1974
- 1974-04-17 BE BE143278A patent/BE813810A/en unknown
- 1974-04-26 IT IT68323/74A patent/IT1011790B/en active
- 1974-05-03 GB GB1957674A patent/GB1461288A/en not_active Expired
- 1974-05-03 ES ES425917A patent/ES425917A1/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112071441A (en) * | 2020-08-10 | 2020-12-11 | 岭东核电有限公司 | Novel fuel assembly with spiral structure fuel rod |
| CN112071441B (en) * | 2020-08-10 | 2021-09-07 | 岭东核电有限公司 | Fuel assembly with fuel rod of helical structure |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1011790B (en) | 1977-02-10 |
| BE813810A (en) | 1974-08-16 |
| ES425917A1 (en) | 1977-07-01 |
| FR2228275A1 (en) | 1974-11-29 |
| FR2228275B1 (en) | 1978-06-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |