GB1225947A - - Google Patents
Info
- Publication number
- GB1225947A GB1225947A GB1225947DA GB1225947A GB 1225947 A GB1225947 A GB 1225947A GB 1225947D A GB1225947D A GB 1225947DA GB 1225947 A GB1225947 A GB 1225947A
- Authority
- GB
- United Kingdom
- Prior art keywords
- march
- tube
- plug
- helium
- reactor control
- 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
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- 229910052734 helium Inorganic materials 0.000 abstract 2
- 239000001307 helium Substances 0.000 abstract 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 abstract 2
- 229910052580 B4C Inorganic materials 0.000 abstract 1
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000002826 coolant Substances 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
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
- G21C7/10—Construction of control 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
1,225,947. Reactor control rods. COMMISSARIAT A L'ENERGIE ATOMIQUE. 9 March, 1970 [7 March, 1969], No. 11174/70. Heading G6C. In a nuclear reactor control element, boron carbide is supported inside a container which is vented to permit the escape of helium produced by the reaction The rod is formed by the tube 10, containing carbide, 20 which is urged against the plate 18 by the spring 24. The helium, which collects in chamber 30, passes through the sintered nickel plug 46, along the screw threads 40 and out through the porous weld, 42. The plug 46 may be replaced by a ball valve. In further embodiments, coolant is permitted to enter the tube 10 either through porous plugs or through holes formed in the element casing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR6906547A FR2049009A1 (en) | 1969-03-07 | 1969-03-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1225947A true GB1225947A (en) | 1971-03-24 |
Family
ID=9030335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1225947D Expired GB1225947A (en) | 1969-03-07 | 1970-03-09 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE747033A (en) |
| FR (1) | FR2049009A1 (en) |
| GB (1) | GB1225947A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3948628A (en) * | 1972-10-11 | 1976-04-06 | Mcdonnell Douglas Corporation | Vent assembly including an air lock |
| US3981700A (en) * | 1972-10-11 | 1976-09-21 | Mcdonnell Douglas Corporation | Vent structure |
| FR2496317A1 (en) * | 1980-12-16 | 1982-06-18 | Westinghouse Electric Corp | DISPLACEMENT CONTROL BAR FOR USE IN A NUCLEAR SPECTRAL DERIVED REACTOR COMPRISING METAL TUBES THEREFROM BY INTERMEDIATE BAR SECTIONS |
| EP0158791A1 (en) * | 1984-03-23 | 1985-10-23 | Westinghouse Electric Corporation | An improved control rod assembly for a nuclear reactor fuel assembly |
| EP0175174A1 (en) * | 1984-09-03 | 1986-03-26 | Ab Asea-Atom | Control rod for nuclear reactors |
| EP0178604A1 (en) * | 1984-10-12 | 1986-04-23 | Hitachi, Ltd. | Fast breeder reactor |
| US4687621A (en) * | 1984-08-06 | 1987-08-18 | Westinghouse Electric Corp. | Nuclear fuel assembly with improved spectral shift-producing rods |
| EP0743651A1 (en) * | 1995-05-16 | 1996-11-20 | Doryokuro Kakunenryo Kaihatsu Jigyodan | Diving bell type control rod equipped with sodium inflow port |
| WO2000026921A2 (en) * | 1998-11-04 | 2000-05-11 | Reynolds Metals Company | Rodlet absorbing members for use with spent fuel |
| WO2006041368A1 (en) * | 2004-09-09 | 2006-04-20 | Westinghouse Electric Sweden Ab | A control rod for a nuclear plant |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5057160A (en) * | 1989-08-31 | 1991-10-15 | General Electric Company | Apparatus for passively releasing gases from a vessel against an adverse pressure gradient |
-
1969
- 1969-03-07 FR FR6906547A patent/FR2049009A1/fr not_active Withdrawn
-
1970
- 1970-03-09 GB GB1225947D patent/GB1225947A/en not_active Expired
- 1970-03-09 BE BE747033D patent/BE747033A/en not_active IP Right Cessation
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3981700A (en) * | 1972-10-11 | 1976-09-21 | Mcdonnell Douglas Corporation | Vent structure |
| US3948628A (en) * | 1972-10-11 | 1976-04-06 | Mcdonnell Douglas Corporation | Vent assembly including an air lock |
| FR2496317A1 (en) * | 1980-12-16 | 1982-06-18 | Westinghouse Electric Corp | DISPLACEMENT CONTROL BAR FOR USE IN A NUCLEAR SPECTRAL DERIVED REACTOR COMPRISING METAL TUBES THEREFROM BY INTERMEDIATE BAR SECTIONS |
| EP0054237A1 (en) * | 1980-12-16 | 1982-06-23 | Westinghouse Electric Corporation | Displacer rod for use in a mechanical spectral shift nuclear reactor |
| EP0158791A1 (en) * | 1984-03-23 | 1985-10-23 | Westinghouse Electric Corporation | An improved control rod assembly for a nuclear reactor fuel assembly |
| US4687621A (en) * | 1984-08-06 | 1987-08-18 | Westinghouse Electric Corp. | Nuclear fuel assembly with improved spectral shift-producing rods |
| EP0175174A1 (en) * | 1984-09-03 | 1986-03-26 | Ab Asea-Atom | Control rod for nuclear reactors |
| EP0178604A1 (en) * | 1984-10-12 | 1986-04-23 | Hitachi, Ltd. | Fast breeder reactor |
| US4762672A (en) * | 1984-10-12 | 1988-08-09 | Hitachi, Ltd. | Fast breeder reactor |
| EP0743651A1 (en) * | 1995-05-16 | 1996-11-20 | Doryokuro Kakunenryo Kaihatsu Jigyodan | Diving bell type control rod equipped with sodium inflow port |
| WO2000026921A2 (en) * | 1998-11-04 | 2000-05-11 | Reynolds Metals Company | Rodlet absorbing members for use with spent fuel |
| WO2000026921A3 (en) * | 1998-11-04 | 2000-12-21 | Reynolds Metals Co | Rodlet absorbing members for use with spent fuel |
| WO2006041368A1 (en) * | 2004-09-09 | 2006-04-20 | Westinghouse Electric Sweden Ab | A control rod for a nuclear plant |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2049009A1 (en) | 1971-03-26 |
| BE747033A (en) | 1970-08-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |