CN115775640A - Fuel rod clamping ring and fuel assembly support grid - Google Patents
Fuel rod clamping ring and fuel assembly support grid Download PDFInfo
- Publication number
- CN115775640A CN115775640A CN202211625044.4A CN202211625044A CN115775640A CN 115775640 A CN115775640 A CN 115775640A CN 202211625044 A CN202211625044 A CN 202211625044A CN 115775640 A CN115775640 A CN 115775640A
- Authority
- CN
- China
- Prior art keywords
- clamping
- fuel rod
- clamping ring
- support grid
- fuel
- 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.)
- Pending
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 97
- 238000003466 welding Methods 0.000 claims description 17
- 238000005452 bending Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 230000002349 favourable effect Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/30—Assemblies of a number of fuel elements in the form of a rigid unit
- G21C3/32—Bundles of parallel pin-, rod-, or tube-shaped fuel elements
- G21C3/33—Supporting or hanging of elements in the bundle; Means forming part of the bundle for inserting it into, or removing it from, the core; Means for coupling adjacent bundles
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/30—Assemblies of a number of fuel elements in the form of a rigid unit
- G21C3/32—Bundles of parallel pin-, rod-, or tube-shaped fuel elements
- G21C3/34—Spacer grids
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/30—Assemblies of a number of fuel elements in the form of a rigid unit
- G21C3/32—Bundles of parallel pin-, rod-, or tube-shaped fuel elements
- G21C3/34—Spacer grids
- G21C3/356—Spacer grids being provided with fuel element supporting members
-
- 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)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses a fuel rod clamping ring and a fuel assembly support grid, wherein the fuel rod clamping ring can be arranged in the support grid to clamp a fuel rod inserted in the support grid; the fuel rod clamping ring comprises a clamping ring body, a plurality of clamping parts which are arranged on the clamping ring body in a protruding mode and penetrate through the fuel rod in a clamping mode, and a plurality of connecting parts which are arranged on the clamping ring body and connected to the support grillwork. The clamping part of the fuel rod clamping ring disclosed by the invention protrudes out of the clamping ring body, so that the clamping part is favorable for forming stable surface contact with the fuel rod, and the local abrasion of the clamping part on the surface of the fuel rod can be reduced; the clamping rings can be integrally placed into the support grillwork, only the connecting parts are required to be connected with the support grillwork, and the clamping rings are easy to process and assemble.
Description
Technical Field
The invention relates to the technical field of fuel assemblies, in particular to a fuel rod clamping ring and a fuel assembly support grid.
Background
In the prior art, the spacer grid is assembled by 32 inner straps with spring leaves and rigid protrusions and 4 outer straps. The material of the inner strip was recrystallized Zr-4. The rigid convex on the inner strip is directly punched and pressed on the inner strip; the spring piece is similar to a hairpin in shape, and is fixed on the inner strip through spot welding after being clamped on the inner strip, so that the scheme is complex.
In the technical scheme, the clamping part spring piece and the rigid projection are easy to loose in the operation process in the stack, so that the clamping effect of the grid on the fuel rods is degraded. The spring plate and the rigid protrusion have a small contact area with the fuel rod, and abrasion between the clamping member and the fuel rod is likely to occur.
Disclosure of Invention
The technical problem to be solved by the present invention is to address at least one of the drawbacks of the related art mentioned in the background above: the contact area between the spring plate and the rigid projection and the fuel rod is small, abrasion between the clamping part and the fuel rod is easy to occur, and the fuel rod clamping ring and the fuel assembly support grid are provided.
The technical scheme adopted by the invention for solving the technical problems is as follows: constructing a fuel rod clamping ring which can be arranged in a support grid to clamp a fuel rod inserted in the support grid; the fuel rod clamping ring comprises a clamping ring body, a plurality of clamping parts which are arranged on the clamping ring body in a protruding mode and penetrate through the fuel rod in a clamping mode, and a plurality of connecting parts which are arranged on the clamping ring body and connected to the support grillwork.
Preferably, in the fuel rod clamping ring, the clamping ring comprises a plurality of bending pieces, each bending piece comprises an arc-shaped main body, and the plurality of arc-shaped main bodies are spliced to form the clamping ring body.
Preferably, in the fuel rod clamping ring of the present invention, each of the bent pieces further includes a clamping portion and a welding portion; the clamping part protrudes out of the arc-shaped main body and is arranged at one end part or the middle part of the arc-shaped main body; the welding parts are arranged on two sides of the arc-shaped main body; and the welding parts of two adjacent bending pieces are connected and fixed.
Preferably, in the fuel rod clamping ring of the present invention, the connecting part includes two welding parts connected to each other.
Preferably, in the fuel rod clamping ring, the clamping part is stamped and formed on the bent piece.
Preferably, in the fuel rod clamping ring, a gap is left between adjacent clamping parts.
The invention also discloses a fuel assembly support grid, comprising:
the grid structure comprises a support grid frame body, wherein the support grid frame body is provided with a plurality of grid cells, and a plurality of mounting parts are arranged in the grid cells; and
the fuel rod grip ring of any preceding item, the fuel rod grip ring the connecting portion with the installation department cooperation is in order to connect the fuel rod grip ring with the support grid body.
Preferably, in the fuel assembly support grid of the present invention, the support grid body comprises a plurality of straps, and the straps are connected in a staggered manner to form a plurality of cells;
each the strip all is equipped with a plurality of installation departments, it is same adjacent two on the strip the installation department falls into adjacent two respectively in the cell so that the grip ring with strip interference fit.
Preferably, in the fuel assembly support grid of the present invention, the mounting portion extends from the inside of the strap to an end of the strap along a side wall of the strap; the connecting portion of the clamp ring is installed by sliding along the outer end portion of the installation portion.
Preferably, in the fuel assembly support grid of the present invention, the mounting portions are projections punched from the straps; the bulges are protruded out of the outer sides of the grid cells.
Preferably, in the fuel assembly support grid of the present invention, a mechanical triangular structure is formed between the mounting portions and the straps adjacent to each other in the same cell; the clamping rings connected to the adjacent mounting parts and the strips form a triangular supporting structure.
By implementing the invention, the following beneficial effects are achieved:
the clamping part of the fuel rod clamping ring disclosed by the invention protrudes out of the clamping ring body, so that the clamping part is favorable for forming stable surface contact with the fuel rod, and the local abrasion of the clamping part on the surface of the fuel rod can be reduced; the clamping rings can be integrally placed into the support grillwork, only the connecting parts are required to be connected with the support grillwork, and the clamping rings are easy to process and assemble.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is one of the overall structural schematic views of a fuel rod clamping ring of one embodiment of the present invention;
FIG. 2 is a second schematic view of the overall structure of a fuel rod clamping ring in accordance with an embodiment of the present invention;
FIG. 3 is a third schematic view of the overall construction of a fuel rod clamping ring in accordance with an embodiment of the present invention;
FIG. 4 is a schematic view of the structure of the bending tab of FIG. 1 according to the present invention;
FIG. 5 is a partial schematic view of the overall structure of a fuel assembly support grid according to one embodiment of the invention;
FIG. 6 is an enlarged structural view of the support grid body of one cell in the lower right corner of FIG. 5 in accordance with the present invention;
FIG. 7 is a schematic view of the interference fit of the attachment portion of the present invention to the attachment portion of the retaining ring;
figure 8 is a schematic view of the mechanical triangular structure of the fuel assembly support grid of the present invention.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection can be mechanical connection or chemical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Referring to fig. 1 to 4, an embodiment of the present invention discloses a fuel rod clamping ring which may be provided in a support lattice to clamp a fuel rod inserted in the support lattice; the fuel rod clamping ring comprises a clamping ring body 11, a plurality of clamping parts 132 which are arranged on the clamping ring body 11 in a protruding mode and used for clamping fuel rods penetrating through the clamping part, and a plurality of connecting parts 12 which are arranged on the clamping ring body 11 and connected to the support grids.
The clamping surface of the fuel rod clamping ring is annular, the whole clamping surface is matched with the fuel rod, and the clamping surface is tightly attached to the fuel rod, so that the resistance of the clamping part 132 to fluid is reduced. The clamping portion 132 protrudes from the clamping ring body 11, which is beneficial to forming stable surface contact between the clamping portion 132 and the fuel rod, and can reduce local abrasion of the clamping portion 132 to the surface of the fuel rod.
And the clamping rings can be integrally placed into the body (2) of the support grid, and only the connecting parts (12) are required to be connected with the body (2) of the support grid, so that the clamping rings are easy to process and assemble.
Specifically, the method comprises the following steps:
referring to fig. 1 to 3, the clamp ring has a plurality of structural configurations, which are listed as several common structural configurations, wherein as shown in fig. 1, the clamping portion 132 can be disposed at the middle of the clamp ring body 11, and the connecting portion 12 is disposed at the outer periphery of the clamp ring body 11; as shown in fig. 2, the clamping portion 132 may be disposed at one end of the clamping ring body 11, and the connecting portion 12 may be disposed at the outer circumference of the clamping ring; as shown in fig. 3, the clamping portion 132 may be provided at the middle of the clamp ring body 11, and the connecting portion 12 may be provided at the outer circumference of the clamp ring body 11 and may be broken at the outer circumference of the clamping portion 132. Preferably, the axial height of the clamping ring is lower than the axial height of the support lattice. It should be noted that, the side of the clamping portion 132 close to the center of the clamping ring body 11 is a cambered surface, which enables a stable surface contact to be formed between the clamping ring and the fuel rod, thereby facilitating to reduce the local abrasion of the clamping member to the surface of the fuel rod, and better clamping the fuel rod.
As shown in fig. 1 and 4, the clamping ring includes a plurality of bending pieces 13, each of the bending pieces 13 includes an arc main body 131, and the plurality of arc main bodies 131 are spliced to form the clamping ring body 11. The bending pieces 13 are connected and fixed to form a clamping ring. In other embodiments, the clamp ring body 11 may be a unitary structure, the connecting portion 12 is welded to the outside of the clamp ring body 11, and the clamping portion 132 is stamped and formed on the clamp ring body 11. Because the grip ring body 11 is formed by the concatenation of the arc main part 131 of a plurality of bending pieces 13, can understand that the grip ring body 11 has a plurality of arcwall faces to splice and forms, so be favorable to making grip ring and fuel rod lateral surface laminating inseparabler to be favorable to better centre gripping fuel rod.
Further, as shown in fig. 4, each bending piece 13 further includes a clamping portion 132 and a welding portion 133; the clamping part 132 protrudes out of the arc-shaped main body 131 and is arranged at one end part or the middle part of the arc-shaped main body 131; the welding parts 133 are provided at both sides of the arc body 131; the welding portions 133 of the adjacent two bent pieces 13 are connected and fixed. Preferably, the connecting portion 12 includes two welding portions 133 connected to each other, that is, the welding portions 133 of two adjacent bending pieces 13 are connected and fixed to form the connecting portion 12. The welding means may be spot welding or brazing.
Further, the clamping portions 132 are punched on the bending piece 13, and a gap is left between adjacent clamping portions 132 to facilitate heat dissipation.
Compared with a spring rigid convex clamping system, the fuel rod clamping ring disclosed by the invention is more compact in design, is beneficial to reducing the height of a support grid, reduces the flow resistance and simultaneously reduces neutron absorption materials.
Referring to fig. 5 to 7, an embodiment of the present invention discloses a fuel assembly support grid including a support grid body and a fuel rod clamping ring as described in any one of the above embodiments. Wherein, the support grillwork body 2 is provided with a plurality of grid cells, and a plurality of mounting parts 211 are arranged in the grid cells; the connecting portion 12 of the fuel rod clip ring is fitted with the mounting portion 211 to connect the fuel rod clip ring with the support grid body 2, thereby mounting the fuel rod clip ring in the cells. It should be noted that fig. 5 only illustrates a partial structure of the fuel assembly support grid, and the number of specific cells in the support grid is not limited.
The fuel assembly support grid can clamp the fuel rods 3 only by arranging a plurality of mounting parts 211 on the support grid body (2) to mount the clamping rings of the fuel rods 3; the clamping rings and the support grid frame body (2) are respectively processed, and the clamping rings are directly placed in the support grid frame body (2) after being processed, so that the structure design is simple, and the processing and the assembly are easy; and the clamping face of 3 grip rings of fuel rod is cyclic annular, and whole clamping face and 3 assorted grip rings of fuel rod hug closely fuel rod 3 and are favorable to reducing the resistance of clamping part 132 to the fluid. The clamping portion 132 protrudes from the clamping ring body 11, which is beneficial to forming a stable surface contact between the clamping portion 132 and the fuel rod 3, and can reduce the local abrasion of the clamping portion 132 to the surface of the fuel rod 3.
Specifically, the method comprises the following steps:
as shown in fig. 5 to 7, the support grid body 2 includes a plurality of straps 21, the straps 21 are connected in a staggered manner to form a plurality of cells; each strip 21 is provided with a plurality of mounting parts 211 for mounting the clamping ring, and two adjacent mounting parts 211 fall into two adjacent cells respectively so that the clamping ring is in interference fit with the strip.
The strip 21 has a simple structure without windows and a few protruding structures, which is beneficial to reducing the flow resistance of the strip 21. As shown in fig. 7, the mounting portion 211 and the connecting portion 12 are in interference fit, please refer to fig. 5, when two clamping rings are inserted into two adjacent mounting portions 211 on the strap 21, the two mounting portions 211 can be restrained mutually to balance the stress, so as to reduce the stress received by the strap, thereby preventing the strap from deforming and breaking. Preferably, the strips 21 falling into the range of each cell are provided with a mounting portion 211 corresponding to the cell, and one cell includes four strips 21, that is, one cell is provided with four mounting portions 211 corresponding to the four strips. In some embodiments, the straps 21 are secured therebetween using welding. It should be noted that the mounting portion 211 corresponding to each cell protrudes toward the center away from the cell, and taking the uppermost strip 21 of fig. 7 as an example, the left mounting portion 211 protrudes toward the center away from the cell, and the right mounting portion 211 protrudes toward the center of the cell, so that only the left mounting portion 211 on the strip 21 is the mounting portion 211 corresponding to the cell.
Referring to fig. 6, the mounting portion 211 extends from the inside of the strap 21 to an end of the strap 21 along the side wall of the strap 21; the connecting portion 12 of the clamp ring is slide-in mounted along the outer end of the mounting portion 211. Preferably, the mounting portion 211 is a groove with an open end, and the connecting portion 12 is inserted into the mounting portion 211 from the open end and fixed by welding. In some embodiments, the open end of the mounting portion 211 is disposed at the lower portion of the strap 21 under gravity, and the connecting portion 12 is inserted from bottom to top and is welded and fixed to prevent falling out under gravity.
Further, as shown in fig. 6 and 7, the mounting portion 211 is a projection punched from the strap 21; the bulge is protruded out of the grid cell. The mounting portions 211 are punched towards the outside of the cell where the mounting portions are located, two adjacent mounting portions 211 on each strip are arranged oppositely, the mounting portions are punched in a staggered mode, and the protruding opening directions are opposite. When the mounting portion 211 is connected to the connecting portion 12, the two adjacent cells are squeezed by the clamp rings, and the two adjacent cells are stressed in opposite directions, so that the clamp rings are constrained with each other, and the clamp rings are prevented from being separated from the mounting portion 211 due to the deformation of the strap 21.
As shown in fig. 8, the mechanical triangular structure is formed between the adjacent mounting portions 211 and the straps 21 in the same cell of the support grid according to the present invention; the clamping rings connected to the adjacent mounting parts 211 and the strips 21 form a triangular support structure, which is beneficial to improving the buckling resistance of the support grillwork.
By implementing the invention, the following beneficial effects are achieved:
the clamping part of the fuel rod clamping ring disclosed by the invention protrudes out of the clamping ring body, so that the clamping part is favorable for forming stable surface contact with the fuel rod, and the local abrasion of the clamping part on the surface of the fuel rod can be reduced; the clamping rings can be integrally placed into the support grillwork, only the connecting parts are required to be connected with the support grillwork, and the clamping rings are easy to process and assemble.
It is to be understood that the foregoing examples, while indicating the preferred embodiments of the invention, are given by way of illustration and description, and are not to be construed as limiting the scope of the invention; it should be noted that, for those skilled in the art, the above embodiments or technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention, that is, the embodiments described in "some embodiments" can be freely combined with any of the above and below embodiments; therefore, all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.
Claims (11)
1. A fuel rod clamping ring can be arranged in a support grid to clamp a fuel rod inserted in the support grid; the fuel rod clamping ring is characterized by comprising a clamping ring body (11), a plurality of clamping parts (132) which are arranged on the clamping ring body (11) in a protruding mode and used for clamping and penetrating the fuel rod, and a plurality of connecting parts (12) which are arranged on the clamping ring body (11) and connected to the support grillwork.
2. The fuel rod clamping ring according to claim 1, characterized in that the clamping ring comprises a number of bent tabs (13), each bent tab (13) comprising an arc-shaped main body (131), a plurality of the arc-shaped main bodies (131) being spliced to form the clamping ring body (11).
3. The fuel rod clamping ring according to claim 2, wherein each of the bent tabs (13) further comprises a clamping portion (132) and a welding portion (133); the clamping part (132) protrudes out of the arc-shaped main body (131) and is arranged at one end part or the middle part of the arc-shaped main body (131); the welding parts (133) are arranged on two sides of the arc-shaped main body (131); the welding parts (133) of two adjacent bending pieces (13) are connected and fixed.
4. The fuel rod clamping ring according to claim 3, characterized in that the connection (12) comprises two mutually connected welds (133).
5. The fuel rod clamping ring as claimed in claim 3, characterized in that the clamping portion (132) is stamped and formed on the bent sheet (13).
6. The fuel rod clamping ring according to any one of claims 1 to 5, characterized in that a gap is left between adjacent clamping portions (132).
7. A fuel assembly support grid, comprising:
the support grillwork body (2), the support grillwork body (2) is provided with a plurality of cells, and a plurality of mounting parts (211) are arranged in the cells; and
the fuel rod clip ring of any one of claims 1 to 6, the connecting portion (12) of the fuel rod clip ring cooperating with the mounting portion (211) to connect the fuel rod clip ring with the support grid body (2).
8. The fuel assembly support lattice according to claim 7, characterized in that the support lattice body (2) comprises a number of straps (21), the straps (21) being connected in a staggered manner to form a number of cells;
each strip (21) all is equipped with a plurality of installation departments (211), and is same two adjacent on the strip installation department (211) falls into two adjacent respectively in the cell so that the grip ring with strip interference fit.
9. A fuel assembly support grid according to claim 8, wherein the mounting portion (211) extends from the interior of the strap (21) to an end of the strap (21) along a side wall of the strap (21); the connecting portion (12) of the clamp ring is slidably mounted along an outer end of the mounting portion (211).
10. A fuel assembly support grid according to any one of claims 8 and 9, wherein the mounting portion (211) is a projection punched from the strap (21); the bulges protrude out of the outer side of the grid cells.
11. A fuel assembly support grid according to any one of claims 8 and 9, characterized in that the mounting portions (211) and the straps (21) adjacent within the same cell form a mechanical triangular structure therebetween; the clamping rings connected to the adjacent mounting parts (211) form a triangular supporting structure with the strip (21).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211625044.4A CN115775640A (en) | 2022-12-16 | 2022-12-16 | Fuel rod clamping ring and fuel assembly support grid |
| PCT/CN2023/125717 WO2024125082A1 (en) | 2022-12-16 | 2023-10-20 | Fuel rod clamping ring and fuel assembly supporting grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211625044.4A CN115775640A (en) | 2022-12-16 | 2022-12-16 | Fuel rod clamping ring and fuel assembly support grid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115775640A true CN115775640A (en) | 2023-03-10 |
Family
ID=85392564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211625044.4A Pending CN115775640A (en) | 2022-12-16 | 2022-12-16 | Fuel rod clamping ring and fuel assembly support grid |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115775640A (en) |
| WO (1) | WO2024125082A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024125082A1 (en) * | 2022-12-16 | 2024-06-20 | 中广核研究院有限公司 | Fuel rod clamping ring and fuel assembly supporting grid |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1153444A (en) * | 1966-02-22 | 1969-05-29 | Atomic Energy Authority Uk | Transverse Bracing Grids for Clusters of Heat Exchange Elements. |
| FR2577343B1 (en) * | 1985-02-08 | 1991-03-22 | Commissariat Energie Atomique | DEVICE FOR SPACING AND HOLDING COMBUSTIBLE PENCILS IN A FUEL ASSEMBLY |
| US9020091B2 (en) * | 2008-04-14 | 2015-04-28 | Westinghouse Electric Company Llc | Nuclear fuel assembly with a lock-support spacer grid |
| KR101071287B1 (en) * | 2009-07-08 | 2011-10-07 | 한국수력원자력 주식회사 | Internal structure of wire spring type spacer grid |
| GB2581891B (en) * | 2017-09-20 | 2022-02-23 | Ling Ao Nuclear Power Co Ltd | Spacer grid and fuel assembly |
| CN115775640A (en) * | 2022-12-16 | 2023-03-10 | 中广核研究院有限公司 | Fuel rod clamping ring and fuel assembly support grid |
-
2022
- 2022-12-16 CN CN202211625044.4A patent/CN115775640A/en active Pending
-
2023
- 2023-10-20 WO PCT/CN2023/125717 patent/WO2024125082A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024125082A1 (en) * | 2022-12-16 | 2024-06-20 | 中广核研究院有限公司 | Fuel rod clamping ring and fuel assembly supporting grid |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024125082A1 (en) | 2024-06-20 |
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