GB1076708A - Device for regulating the power level of a nuclear reactor - Google Patents
Device for regulating the power level of a nuclear reactorInfo
- Publication number
- GB1076708A GB1076708A GB41008/65A GB4100865A GB1076708A GB 1076708 A GB1076708 A GB 1076708A GB 41008/65 A GB41008/65 A GB 41008/65A GB 4100865 A GB4100865 A GB 4100865A GB 1076708 A GB1076708 A GB 1076708A
- Authority
- GB
- United Kingdom
- Prior art keywords
- neutron
- absorbing
- channel
- chain
- reactor
- 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
- 230000001105 regulatory effect Effects 0.000 title abstract 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 2
- 239000011358 absorbing material Substances 0.000 abstract 2
- 229910052796 boron Inorganic materials 0.000 abstract 2
- 230000004907 flux Effects 0.000 abstract 2
- 230000004048 modification Effects 0.000 abstract 2
- 238000012986 modification Methods 0.000 abstract 2
- 239000010959 steel Substances 0.000 abstract 2
- 229910000712 Boron steel Inorganic materials 0.000 abstract 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 230000001276 controlling effect Effects 0.000 abstract 1
- 239000002826 coolant Substances 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 230000009257 reactivity Effects 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
-
- 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
- G21C7/14—Mechanical drive arrangements
-
- 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)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Particle Accelerators (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
1,076,708. Controlling reactors. COMMISSARIAT A L'ENERGIE ATOMIQUE. Sept. 27. 1965 [Oct. 13, 1964], No. 41008/65. Addition to 1,064,382. Heading G6C. In a modification of the device of Specification 1,064,382 for regulating the power of a nuclear reactor, a neutron-absorbing element consisting of at least one neutron-absorbing chain is adapted to be manipulated within the vertical reactor channel, each chain comprising a first portion of neutron-absorbing material and a second portion of non-absorbing material, the portions extending end to end so that they act on the reactivity of the reactor according to which portion of the chain is situated in the reactor channel. A detachable container is mounted at the bottom of the channel to receive the first portion when withdrawn from the channel and the links of the second portion co-operate with a sprocket wheel placed at the top of the channel, along with the sprocket drive, in a second detachable container in which the entire neutron-absorbing element can be stored. The non-absorbing chain portion may be fabricated of aluminium or zirconium metal or alloys, or of a steel which does not contain boron. Boron steel may be used for the neutron-absorbing chain portion. The device is particularly advantageous in the case of reactors in which a coolant gas flows downwardly through the channels in the direction opposite to the movement of insertion of the neutron-absorbing elements since the resultant deformation of the neutron flux distribution and hence of the thermal flux distribution improves the cooling of the fuel elements located within the adjacent channels. The device can be used for emergency shut down in which case the neutron-absorbing chain portions are fabricated of steel having a high boron content and, in normal operation of the reactor, have their free ends located at the level of the top of the moderator stack. The length of chain between this level and the sprockets constitutes sufficient driving weight to cause the chains to drop into the channel when the electromagnetic clutch of the drive mechanism is no longer supplied with current. In this modification, it is no longer necessary to employ a detachable container at the bottom of the channel.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR939251A FR1368891A (en) | 1963-06-25 | 1963-06-25 | Device for regulating the power of a nuclear reactor |
| FR952351A FR84641E (en) | 1963-06-25 | 1963-10-30 | Device for regulating the power of a nuclear reactor |
| FR991268A FR86619E (en) | 1963-06-25 | 1964-10-13 | Device for regulating the power of a nuclear reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1076708A true GB1076708A (en) | 1967-07-19 |
Family
ID=27247303
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24697/64A Expired GB1064382A (en) | 1963-06-25 | 1964-06-15 | Device for regulating the power of a nuclear reactor |
| GB41008/65A Expired GB1076708A (en) | 1963-06-25 | 1965-09-27 | Device for regulating the power level of a nuclear reactor |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24697/64A Expired GB1064382A (en) | 1963-06-25 | 1964-06-15 | Device for regulating the power of a nuclear reactor |
Country Status (8)
| Country | Link |
|---|---|
| BE (2) | BE649518A (en) |
| CH (1) | CH419362A (en) |
| DE (2) | DE1237234B (en) |
| FR (3) | FR1368891A (en) |
| GB (2) | GB1064382A (en) |
| LU (1) | LU46323A1 (en) |
| NL (2) | NL6407176A (en) |
| NO (2) | NO116095B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3438856A (en) * | 1967-12-29 | 1969-04-15 | Atomic Energy Commission | Nuclear reactor hydraulic control drive system |
| RU2166214C1 (en) * | 2000-02-21 | 2001-04-27 | Государственный научный центр Российской Федерации Всероссийский научно-исследовательский институт неорганических материалов им. акад. А.А. Бочвара | Composite fuel assembly for power control system of nuclear reactor core |
| RU2188470C1 (en) * | 2001-10-31 | 2002-08-27 | Государственное предприятие "Московский завод полиметаллов" | Control element of pressurized-tube uranium- graphite reactor |
| RU2190886C1 (en) * | 2001-10-31 | 2002-10-10 | Государственное предприятие "Московский завод полиметаллов" | Method for operating pressurized-tube uranium- graphite reactor and control element of pressurized-tube uranium-graphite reactor |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2058619C3 (en) * | 1970-11-28 | 1982-01-21 | Interatom Internationale Atomreaktorbau Gmbh, 5060 Bergisch Gladbach | Vertical control rod for quick and safe shutdown of nuclear reactors |
| US4019954A (en) * | 1974-11-07 | 1977-04-26 | Commissariat A L'energie Atomique | Safety device for a nuclear reactor and especially a fast reactor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE567089A (en) * | 1957-05-08 | 1900-01-01 | ||
| FR1188583A (en) * | 1957-11-12 | 1959-09-23 | Cie D Applic Et De Rech S Atom | Improvements to anti-reactivity control means for nuclear fission reactors and new products resulting from these improvements |
-
1963
- 1963-06-25 FR FR939251A patent/FR1368891A/en not_active Expired
- 1963-10-30 FR FR952351A patent/FR84641E/en not_active Expired
-
1964
- 1964-06-12 DE DEC33125A patent/DE1237234B/en active Pending
- 1964-06-15 LU LU46323D patent/LU46323A1/xx unknown
- 1964-06-15 GB GB24697/64A patent/GB1064382A/en not_active Expired
- 1964-06-16 CH CH781564A patent/CH419362A/en unknown
- 1964-06-19 BE BE649518A patent/BE649518A/xx unknown
- 1964-06-22 NO NO153760A patent/NO116095B/no unknown
- 1964-06-24 NL NL6407176A patent/NL6407176A/xx unknown
- 1964-10-13 FR FR991268A patent/FR86619E/en not_active Expired
-
1965
- 1965-09-27 GB GB41008/65A patent/GB1076708A/en not_active Expired
- 1965-09-27 BE BE670163D patent/BE670163A/xx unknown
- 1965-09-27 DE DEC36980A patent/DE1254778B/en active Pending
- 1965-09-30 NO NO159913A patent/NO116096B/no unknown
- 1965-10-13 NL NL6513241A patent/NL6513241A/xx unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3438856A (en) * | 1967-12-29 | 1969-04-15 | Atomic Energy Commission | Nuclear reactor hydraulic control drive system |
| RU2166214C1 (en) * | 2000-02-21 | 2001-04-27 | Государственный научный центр Российской Федерации Всероссийский научно-исследовательский институт неорганических материалов им. акад. А.А. Бочвара | Composite fuel assembly for power control system of nuclear reactor core |
| RU2188470C1 (en) * | 2001-10-31 | 2002-08-27 | Государственное предприятие "Московский завод полиметаллов" | Control element of pressurized-tube uranium- graphite reactor |
| RU2190886C1 (en) * | 2001-10-31 | 2002-10-10 | Государственное предприятие "Московский завод полиметаллов" | Method for operating pressurized-tube uranium- graphite reactor and control element of pressurized-tube uranium-graphite reactor |
Also Published As
| Publication number | Publication date |
|---|---|
| NO116096B (en) | 1969-01-27 |
| NL6407176A (en) | 1964-12-28 |
| FR86619E (en) | 1966-03-11 |
| NO116095B (en) | 1969-01-27 |
| LU46323A1 (en) | 1972-01-01 |
| NL6513241A (en) | 1966-04-14 |
| GB1064382A (en) | 1967-04-05 |
| FR84641E (en) | 1965-03-19 |
| FR1368891A (en) | 1964-08-07 |
| DE1254778B (en) | 1967-11-23 |
| BE670163A (en) | 1966-01-17 |
| CH419362A (en) | 1966-08-31 |
| DE1237234B (en) | 1967-03-23 |
| BE649518A (en) | 1964-10-16 |
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