RU2016117416A - Mixing and spacing grid of a fuel assembly of a nuclear reactor (options) - Google Patents

Mixing and spacing grid of a fuel assembly of a nuclear reactor (options) Download PDF

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Publication number
RU2016117416A
RU2016117416A RU2016117416A RU2016117416A RU2016117416A RU 2016117416 A RU2016117416 A RU 2016117416A RU 2016117416 A RU2016117416 A RU 2016117416A RU 2016117416 A RU2016117416 A RU 2016117416A RU 2016117416 A RU2016117416 A RU 2016117416A
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Russia
Prior art keywords
elements
cells
rim
holes
hexagonal
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RU2016117416A
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Russian (ru)
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RU2638647C2 (en
Inventor
Игорь Владимирович Евстигнеев
Владимир Алексеевич Кострицын
Михаил Игоревич Колосов
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Публичное акционерное общество "Машиностроительный завод"
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Priority to RU2016117416A priority Critical patent/RU2638647C2/en
Publication of RU2016117416A publication Critical patent/RU2016117416A/en
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    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21CNUCLEAR REACTORS
    • G21C3/00Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
    • G21C3/30Assemblies of a number of fuel elements in the form of a rigid unit
    • G21C3/32Bundles of parallel pin-, rod-, or tube-shaped fuel elements
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Fuel Cell (AREA)

Claims (4)

1. Перемешивающая решетка тепловыделяющей сборки ядерного реактора, содержащая обод и набор взаимно пересекающихся пластин в форме полос, соединенных между собой и с ободом в местах пересечения, образующих поле ячеек для проходки твэлов и опорных элементов тепловыделяющей сборки, по меньшей мере часть которых выполнена шестигранными, и смежных с шестигранными ячейками трехгранных ячеек для прохода теплоносителя, на торцах которых выполнены отогнутые в сторону трехгранных ячеек перемешивающие пластинчатые дефлекторы, отличающаяся тем, что поле ячеек выполнено в виде цельнометаллической матрицы сотового типа со скругленными отверстиями в поперечном сечении для проходки опорных элементов, с отверстиями шестигранного профиля для проходки твэлов, с отверстиями трехгранного профиля для прохода теплоносителя, причем перемешивающие дефлекторы выполнены на торце одной из граней трехгранного отверстия с наклоном внутрь трехгранного отверстия.1. The mixing lattice of the fuel assembly of a nuclear reactor, containing a rim and a set of mutually intersecting plates in the form of strips connected to each other and to the rim at the intersection, forming a field of cells for driving fuel elements and supporting elements of the fuel assembly, at least some of which are made hexagonal, and adjacent to the hexagonal cells of the trihedral cells for the passage of the coolant, at the ends of which are made bent towards the trihedral cells mixing plate deflectors, characterized in that the cell field is made in the form of an all-metal matrix of a honeycomb type with rounded holes in the cross section for driving support elements, with hexagonal holes for fuel elements, with triangular holes for coolant passage, the mixing deflectors being made at the end of one of the faces of the triangular hole with tilt into the trihedral hole. 2. Перемешивающая решетка по п. 1, отличающаяся тем, что поле ячеек и обод выполнены совместно в виде цельнометаллической матрицы сотового типа.2. The mixing lattice according to claim 1, characterized in that the cell field and the rim are made together in the form of an all-metal matrix of a honeycomb type. 3. Дистанционирующая решетка тепловыделяющей сборки ядерного реактора, содержащая обод и набор ячеек, соединенных между собой и с ободом по сопрягаемым поверхностям, расположенных по гексагональной схеме и образующих поле ячеек для проходки твэлов и опорных элементов тепловыделяющей сборки, имеющих каждая шестигранную форму с упорными элементами для твэла, образованных выпуклостями на гранях ячейки внутрь нее, отличающаяся тем, что поле ячеек выполнено в виде цельнометаллической матрицы сотового типа с фигурными отверстиями в поперечном сечении для проходки опорных элементов, с отверстиями фигурного шестигранного профиля для проходки твэлов с выполненными на стенках отверстий упорными элементами для твэла выпуклостями внутрь отверстия и расположенными через 120 градусов друг от друга.3. A spacer grid of a fuel assembly of a nuclear reactor containing a rim and a set of cells connected to each other and to the rim along mating surfaces arranged in a hexagonal pattern and forming a field of cells for driving fuel elements and supporting elements of a fuel assembly having each hexagonal shape with thrust elements for fuel elements formed by bulges on the edges of the cell inside it, characterized in that the field of cells is made in the form of an all-metal matrix of a honeycomb type with figured holes across This section is for driving support elements, with holes of a figured hexagonal profile for driving fuel elements with stop elements for fuel elements made on the walls of the holes, bulges inside the hole and located 120 degrees apart. 4. Дистанционирующая решетка по п. 3, отличающаяся тем, что поле ячеек и обод выполнены совместно в виде цельнометаллической матрицы сотового типа.4. The spacer grid according to claim 3, characterized in that the cell field and the rim are made together in the form of an all-metal matrix of a honeycomb type.
RU2016117416A 2016-05-04 2016-05-04 Mixing and spacer grids of nuclear reactor fuel assembly (versions) RU2638647C2 (en)

Priority Applications (1)

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RU2016117416A RU2638647C2 (en) 2016-05-04 2016-05-04 Mixing and spacer grids of nuclear reactor fuel assembly (versions)

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RU2016117416A RU2638647C2 (en) 2016-05-04 2016-05-04 Mixing and spacer grids of nuclear reactor fuel assembly (versions)

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RU2638647C2 RU2638647C2 (en) 2017-12-15

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111524616A (en) * 2020-05-14 2020-08-11 吉林农业大学 Integral positioning grid frame based on additive manufacturing process
CN111540481A (en) * 2020-05-14 2020-08-14 吉林农业大学 Stirring grid work based on additive manufacturing process

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023249511A1 (en) * 2022-06-21 2023-12-28 Акционерное Общество "Твэл" Nuclear reactor fuel assembly (embodiments)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2256960C1 (en) * 2003-10-22 2005-07-20 Открытое акционерное общество "Машиностроительный завод" Spacer grid and method for spacer grid manufacture
RU2383954C1 (en) * 2008-09-15 2010-03-10 Открытое акционерное общество "Машиностроительный завод" Mixing grid for nuclear reactor fuel assembly
US9620250B2 (en) * 2012-02-02 2017-04-11 Bwxt Nuclear Energy, Inc. Spacer grid
US9378852B2 (en) * 2012-04-17 2016-06-28 Bwxt Mpower, Inc. Spacer grids for nuclear reactor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111524616A (en) * 2020-05-14 2020-08-11 吉林农业大学 Integral positioning grid frame based on additive manufacturing process
CN111540481A (en) * 2020-05-14 2020-08-14 吉林农业大学 Stirring grid work based on additive manufacturing process
CN111524616B (en) * 2020-05-14 2023-09-01 吉林农业大学 Integral spacer grid based on additive manufacturing process

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RU2638647C2 (en) 2017-12-15

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