GB1009166A - Improvements in or relating to control rod mechanisms for nuclear reactors - Google Patents
Improvements in or relating to control rod mechanisms for nuclear reactorsInfo
- Publication number
- GB1009166A GB1009166A GB39193/63A GB3919363A GB1009166A GB 1009166 A GB1009166 A GB 1009166A GB 39193/63 A GB39193/63 A GB 39193/63A GB 3919363 A GB3919363 A GB 3919363A GB 1009166 A GB1009166 A GB 1009166A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rod
- control
- electromagnet
- piston
- neutron absorbing
- 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
- 230000007246 mechanism Effects 0.000 title abstract 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 abstract 1
- 229910052796 boron Inorganic materials 0.000 abstract 1
- 229910052793 cadmium Inorganic materials 0.000 abstract 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000000523 sample Substances 0.000 abstract 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/02—Pigsties; Dog-kennels; Rabbit-hutches or the like
- A01K1/03—Housing for domestic or laboratory animals
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C7/00—Control of nuclear reaction
- G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
- G21C7/08—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods
- G21C7/12—Means for moving control elements to desired position
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C7/00—Control of nuclear reaction
- G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
- G21C7/08—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods
- G21C7/12—Means for moving control elements to desired position
- G21C7/16—Hydraulic or pneumatic drive
-
- 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
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Environmental Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Zoology (AREA)
- Clinical Laboratory Science (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Health & Medical Sciences (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
1,009,166. Reactor control rods. COMMISSARIAT A L'ENERGIE ATOMIQUE. Oct. 4, 1963 [Oct. 5, 1962], No. 39193/63. Heading G6C. A nuclear reactor control rod mechanism has provision for inserting a member into a core either as a control rod, or as an emergency shutdown rod; the mechanism comprises a tube enclosing a screw jack, a neutron absorbing member whose upper end is a piston, a reservoir of compressed gas, and an electromagnet which retains the piston against an aperture in the gas reservoir in such a way that, on de-energizing of the electromagnet, the neutron absorbing member is simultaneously dropped and propelled by pressure from the gas reservoir. The neutron absorbing rod is boron or cadmium, and in control operation is moved axially by a rotating screw driven by a control motor. When the control rod is released to function as a safety rod, the last part of its descent is retarded by means of a dashpot, a helical spring, and a stack of cupped discs. A signal indicating that the safety rod has dropped away from the associated control drive mechanism is derived from a hollow solenoid from which is withdrawn a metal probe integral with the absorbing rod. Provision is made for recovering the absorbing rod simply by lowering the normal control mechanism until contact is reestablished between the electromagnet and the piston.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR911481A FR1344992A (en) | 1962-10-05 | 1962-10-05 | Control rod mechanism for nuclear reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1009166A true GB1009166A (en) | 1965-11-10 |
Family
ID=8788190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB39193/63A Expired GB1009166A (en) | 1962-10-05 | 1963-10-04 | Improvements in or relating to control rod mechanisms for nuclear reactors |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE638241A (en) |
| FR (1) | FR1344992A (en) |
| GB (1) | GB1009166A (en) |
| LU (1) | LU44562A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2627319B1 (en) * | 1988-02-11 | 1990-07-27 | Framatome Sa | SHOCK ABSORBING CONTROL MECHANISM FOR NUCLEAR REACTOR ABSORBENT BAR |
| FR2627318B1 (en) * | 1988-02-11 | 1992-08-14 | Framatome Sa | CONTROL MECHANISM FOR NUCLEAR REACTOR ABSORBENT BAR |
-
0
- BE BE638241D patent/BE638241A/xx unknown
-
1962
- 1962-10-05 FR FR911481A patent/FR1344992A/en not_active Expired
-
1963
- 1963-10-03 LU LU44562D patent/LU44562A1/xx unknown
- 1963-10-04 GB GB39193/63A patent/GB1009166A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1344992A (en) | 1963-12-06 |
| BE638241A (en) | |
| LU44562A1 (en) | 1963-12-03 |
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