GB1109025A - Control rod actuating mechanism - Google Patents
Control rod actuating mechanismInfo
- Publication number
- GB1109025A GB1109025A GB42006/66A GB4200666A GB1109025A GB 1109025 A GB1109025 A GB 1109025A GB 42006/66 A GB42006/66 A GB 42006/66A GB 4200666 A GB4200666 A GB 4200666A GB 1109025 A GB1109025 A GB 1109025A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- reactor vessel
- liquid metal
- rod
- gas
- 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
Classifications
-
- 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
-
- 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)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
1,109,025. Controlling reactors. COMMISSARIAT A L'ENERGIE ATOMIQUE. 20 Sept., 1966 [29 Sept., 1965], No. 42006/66. Heading G6C. [Also in Division F2] A control rod actuating mechanism for use with a liquid metal cooled fast reactor comprises elements 2 for gripping the top of the control rod 1, a rod 3 for actuating the gripping elements by displacement in a coaxial tube 4, means outside the reactor vessel for displacing the tube 4 through the reactor vessel wall, a metal bellows 10 as sealing means between the tube 4 and the actuating rod 3 and a gasket (not shown) as sealing means between the tube 4 and the reactor vessel wall, apertures 13 in the lower part 4a of the tube 4 which enable the liquid metal to flow freely through the tube 4, and guiding elements 14 rigidly connected to the tube 4 which make point contact with the actuating rod 3. The tube 4 is guided in its displacement by keys 15 which slide in longitudinal apertures 16 in a stationary outer guide tube. The liquid metal can enter the tube 17 freely through the apertures 16. The liquid metal provides continuous lubrication of the mechanism. The stationary outer guide tube is secured to a stationary tube which extends through the reactor vessel wall and supports a biological protection plug encircling the upper part 4b of the displaceable tube 4. The gasket which is located in the stationary tube cooperates with the displaceable tube 4 to bound a number of consecutive annular chambers and a sealing block. A small flow of gas derived continuously from a gas blanket above the liquid metal in the reactor vessel experiences a series of expansion steps in the annular chambers, the pressure differences being produced in a direction such that there is no leakage of active gas outside the reactor vessel. The gas circuit includes a reservoir, the dwell time of the gas in the reservoir being long enough for satisfactory deactivation. With such a gasket, high-speed rod movements of several metres become a possibility while on the other hand the movements of the bellows are short and slow with no maintenance problems arising.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR33180A FR1458620A (en) | 1965-09-29 | 1965-09-29 | Control rod control mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1109025A true GB1109025A (en) | 1968-04-10 |
Family
ID=8589366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB42006/66A Expired GB1109025A (en) | 1965-09-29 | 1966-09-20 | Control rod actuating mechanism |
Country Status (8)
| Country | Link |
|---|---|
| BE (1) | BE686715A (en) |
| CH (1) | CH462334A (en) |
| DE (1) | DE1299085B (en) |
| ES (1) | ES331698A1 (en) |
| FR (1) | FR1458620A (en) |
| GB (1) | GB1109025A (en) |
| LU (1) | LU52068A1 (en) |
| NL (1) | NL6613379A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL133368B (en) * | 1961-06-27 | 1900-01-01 |
-
1965
- 1965-09-29 FR FR33180A patent/FR1458620A/en not_active Expired
-
1966
- 1966-09-09 BE BE686715D patent/BE686715A/xx not_active Expired
- 1966-09-12 CH CH1312766A patent/CH462334A/en unknown
- 1966-09-20 GB GB42006/66A patent/GB1109025A/en not_active Expired
- 1966-09-22 NL NL6613379A patent/NL6613379A/xx unknown
- 1966-09-28 ES ES331698A patent/ES331698A1/en not_active Expired
- 1966-09-28 DE DEC40217A patent/DE1299085B/en active Pending
- 1966-09-29 LU LU52068A patent/LU52068A1/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ES331698A1 (en) | 1969-11-16 |
| CH462334A (en) | 1968-09-15 |
| DE1299085B (en) | 1969-07-10 |
| BE686715A (en) | 1967-02-15 |
| NL6613379A (en) | 1967-03-30 |
| LU52068A1 (en) | 1966-11-29 |
| FR1458620A (en) | 1966-03-04 |
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