RU2008115020A - METHOD OF DESTRUCTION OF ZIRCONIUM SHELLS OF ROD HEAT-FUSELING ELEMENTS OF THE HEAT-FUEL ASSEMBLY - Google Patents
METHOD OF DESTRUCTION OF ZIRCONIUM SHELLS OF ROD HEAT-FUSELING ELEMENTS OF THE HEAT-FUEL ASSEMBLY Download PDFInfo
- Publication number
- RU2008115020A RU2008115020A RU2008115020/06A RU2008115020A RU2008115020A RU 2008115020 A RU2008115020 A RU 2008115020A RU 2008115020/06 A RU2008115020/06 A RU 2008115020/06A RU 2008115020 A RU2008115020 A RU 2008115020A RU 2008115020 A RU2008115020 A RU 2008115020A
- Authority
- RU
- Russia
- Prior art keywords
- elements
- fuel
- fuel assembly
- shells
- destruction
- Prior art date
Links
- 239000000446 fuel Substances 0.000 title claims abstract 28
- 230000006378 damage Effects 0.000 title claims abstract 8
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 title claims abstract 7
- 238000000034 method Methods 0.000 title claims abstract 7
- 229910052726 zirconium Inorganic materials 0.000 title claims abstract 7
- 230000006698 induction Effects 0.000 claims abstract 6
- 238000010438 heat treatment Methods 0.000 claims abstract 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract 4
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract 4
- 239000010935 stainless steel Substances 0.000 claims abstract 4
- 238000010521 absorption reaction Methods 0.000 claims abstract 2
- 230000000712 assembly Effects 0.000 claims abstract 2
- 238000000429 assembly Methods 0.000 claims abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract 2
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract 2
- 239000001301 oxygen Substances 0.000 claims abstract 2
- 229910052760 oxygen Inorganic materials 0.000 claims abstract 2
- 238000000926 separation method Methods 0.000 claims abstract 2
- 238000005253 cladding Methods 0.000 abstract 2
Classifications
-
- 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
- General Induction Heating (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
1. Способ разрушения циркониевых оболочек стержневых тепловыделяющих элементов тепловыделяющей сборки, включающий отделение от тепловыделяющей сборки элементов из нержавеющей стали - головок, хвостовиков, направляющих каналов для поглотительных элементов, транспортирование тепловыделяющей сборки на охрупчивание оболочек тепловыделяющих элементов, осуществляемое в замкнутом пространстве в воздушной среде при нагреве до температуры 900-1200°С, механическое разрушение охрупченных оболочек и удаление топлива, разрушенных оболочек тепловыделяющих элементов и других элементов тепловыделяющей сборки, отличающийся тем, что воздух в замкнутом пространстве обогащают азотом до содержания в воздухе кислорода, равного 5-10 об.%, а нагрев производят в индукционном магнитном поле с частотой 40-100 кГц. ! 2. Способ разрушения циркониевых оболочек стержневых тепловыделяющих элементов по п.1, отличающийся тем, что в индукционное магнитное поле тепловыделяющую сборку подают в дискретном режиме. ! 3. Способ разрушения циркониевых оболочек стержневых тепловыделяющих элементов тепловыделяющих сборок по п.1 или 2, отличающийся тем, что элементы из нержавеющей стали отделяют от тепловыделяющей сборки перед транспортированием ее в замкнутое пространство путем отрыва элементов от мест крепления их к тепловыделяющей сборке при локальном индукционном нагреве с последующим удалением элементов.1. The method of destruction of zirconium shells of rod fuel elements of a fuel assembly, including separation of stainless steel elements from the fuel assembly - heads, shanks, guide channels for absorption elements, transportation of the fuel assembly for embrittlement of the shells of fuel elements, carried out in a closed space in an air environment during heating to a temperature of 900-1200 ° C, mechanical destruction of embrittled cladding and removal of fuel, destroyed cladding of fuel elements and other elements of the fuel assembly, characterized in that the air in an enclosed space is enriched with nitrogen to an oxygen content of 5-10 vol.% in the air, and heating is carried out in an induction magnetic field with a frequency of 40-100 kHz. ! 2. A method for destroying zirconium shells of rod fuel elements according to claim 1, characterized in that the fuel assembly is fed into the induction magnetic field in a discrete mode. ! 3. A method of destruction of zirconium shells of rod fuel elements of fuel assemblies according to claim 1 or 2, characterized in that the stainless steel elements are separated from the fuel assembly before transporting it into an enclosed space by separating the elements from their attachment points to the fuel assembly during local induction heating with the subsequent removal of elements.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2008115020/06A RU2376667C1 (en) | 2008-04-16 | 2008-04-16 | Method of breaking down zirconium cladding of fuel rods of fuel assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2008115020/06A RU2376667C1 (en) | 2008-04-16 | 2008-04-16 | Method of breaking down zirconium cladding of fuel rods of fuel assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2008115020A true RU2008115020A (en) | 2009-10-27 |
| RU2376667C1 RU2376667C1 (en) | 2009-12-20 |
Family
ID=41352485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2008115020/06A RU2376667C1 (en) | 2008-04-16 | 2008-04-16 | Method of breaking down zirconium cladding of fuel rods of fuel assembly |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2376667C1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2907588B1 (en) * | 2006-10-24 | 2009-01-23 | Commissariat Energie Atomique | PROCESS FOR TREATING NUCLEAR FUELS COMPRISING SILICON CARBIDE AND DEGALING NUCLEAR FUEL PARTICLES. |
| CN112670005B (en) * | 2020-12-18 | 2022-10-21 | 中广核研究院有限公司 | Spent fuel rod treatment method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2025112B (en) * | 1978-07-05 | 1982-08-04 | Atomic Energy Authority Uk | Recovery of nuclear fuel material |
| DE3149795C2 (en) * | 1981-12-16 | 1986-05-15 | Kernforschungsanlage Jülich GmbH, 5170 Jülich | Process for separating structural graphite from nuclear fuel in nuclear reactor fuel elements |
| RU2194783C1 (en) * | 2001-04-13 | 2002-12-20 | Государственное унитарное предприятие "Всероссийский научно-исследовательский институт химической технологии" | Method of ceramic nuclear fuel recovery from fuel elements and fuel assemblies |
| RU2244354C1 (en) * | 2003-05-27 | 2005-01-10 | Федеральное государственное унитарное предприятие "Научно-исследовательский и конструкторский институт энерготехники им. Н.А. Доллежаля" | Method of compacting radioactive long-length members of zirconium and zirconium alloy structures |
-
2008
- 2008-04-16 RU RU2008115020/06A patent/RU2376667C1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| RU2376667C1 (en) | 2009-12-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20210417 |