CN109935367A - A kind of spacer grid of fuel assembly and fuel assembly of band buckle - Google Patents
A kind of spacer grid of fuel assembly and fuel assembly of band buckle Download PDFInfo
- Publication number
- CN109935367A CN109935367A CN201711369490.2A CN201711369490A CN109935367A CN 109935367 A CN109935367 A CN 109935367A CN 201711369490 A CN201711369490 A CN 201711369490A CN 109935367 A CN109935367 A CN 109935367A
- Authority
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- China
- Prior art keywords
- lattice cell
- fuel assembly
- grid
- spacer
- tube passage
- 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 105
- 125000006850 spacer group Chemical group 0.000 title claims abstract description 51
- 239000002826 coolant Substances 0.000 claims abstract description 15
- 230000000694 effects Effects 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000003466 welding Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000003758 nuclear fuel Substances 0.000 description 2
- 238000005253 cladding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The present invention relates to fuel assembly technical fields, specifically disclose the spacer grid of fuel assembly and fuel assembly of a kind of band buckle, and the grid spacer is rearranged by lattice cell, are equipped with outer band in the outside of lattice cell arrangement；The lattice cell section is octagon, processes card hole at interval of a face on eight faces of lattice cell；Buckle is fixed on lattice cell across card hole, for clamping fuel element and generating the effect mixed to coolant.The fuel assembly includes upper tube socket, annular fuel element, bottom nozzle, guide pipe, gauge pipe and the grid spacer.Grid spacer of the present invention can be suitable for annular fuel element, located lateral is provided to fuel element and generates certain effect of mixing to coolant, while adjacent lattice cell can also be fixed using buckle, and does not have to be welded and fixed again, reduce manufacturing process, reduces costs.
Description
Technical field
The invention belongs to fuel assembly technical fields, and in particular to a kind of spacer grid of fuel assembly and fuel of band buckle
Component.
Background technique
In nuclear power plant reactor operational process, the performance of nuclear fuel be influence nuclear reactor safety and economy it is important because
Element.Therefore the research of fuel element is placed on status very outstanding always in the world, by the design of optimization fuel element, used
The methods of advanced configuration material, improvement component manufacturing process, are continuously improved the various performances of nuclear fuel element, promote nuclear power to more
Safe and more economical direction is developed.
Existing PWR fuel assembly design in, fuel rod generally using grid spacer clamp it is hanging by the way of.Positioning
Screen work plays a part of support clamping to fuel element, and needs to resist the gravity of fuel element, due to the effect of irradiation,
The chucking power for clamping the spring of fuel rod can strongly reduce, and fuel rod can generally be fallen on bottom nozzle, make in the flowing of coolant
Under, fuel rod may upper and lower play, this will lead to the risk of fuel rod breakage.
To optimize the parameter of fuel element, and general fuel assembly form construction design is used, so that novel component
It can be suitable for current mature reactor core.Novel annular fuel element is such as used, outer diameter becomes larger, and weight increases, at this time
The chucking power of required grid spacer may increase about 2-4 times, can place that such as spring, just the space of convex clamping piece has become smaller,
This probability that fuel element is fallen at runtime on bottom nozzle increases, and during to open heap again after cold-refueling
The probability of play also increases above and below fuel element.
Meanwhile in the design and manufacture of existing spacer grid of fuel assembly, grid spacer is all made of inside and outside band substantially.
Due to the complexity of its band, 30 multiple kinds of molds are needed when manufacturing.After mold determines, to change grid spacer
Characteristic, such as flow resistance generate better effect etc. to distribution of the coolant fuel assembly, need to change wherein almost
The shape of all molds, considerably increases work load.
Therefore, it needs to design a kind of novel spacer grid of fuel assembly, with overcome the deficiencies in the prior art.
Summary of the invention
The purpose of the present invention is to provide a kind of spacer grid of fuel assembly of band buckle, can clamp annular fuel member
Part, and include the fuel assembly of above-mentioned grid spacer.
Technical scheme is as follows:
A kind of spacer grid of fuel assembly of band buckle, is rearranged by lattice cell, is equipped with outer item in the outside of lattice cell arrangement
Band；
The lattice cell section is octagon, processes card hole at interval of a face on eight faces of lattice cell；
Buckle is fixed on lattice cell across card hole, for clamping fuel element and generating the effect mixed to coolant.
The height of outer band and the height of lattice cell are identical, are equipped with guide vane in the top edge of outer band and lower edge, prevent
Only fuel assembly hooks mutually when assembly.
The lattice cell connects two-by-two, is fixed by way of spot welding, forms the arrangement of M × M.
The value range of the M is 3~17.
The value of M is one in 5,9,13,15.
The card hole is set on the face that two neighboring lattice cell connects.
The card hole is set on the face that two neighboring lattice cell does not connect.
One face is equipped with N number of card hole, N >=2.
The shape of the buckle is " B " shape, I-shaped, sugarcoated haws shape, triangle or pentagon.
By lattice cell arrange in a lattice cell take out, the position of lattice cell vacancy is as guiding tube passage or instrument tube passage.
The instrument tube passage has one, is located at the center that lattice cell is arranged with M × M；Guiding tube passage has several
It is a, centered on instrument tube passage, it is symmetrically arranged.
Guide pipe is set in guiding tube passage, is welded and fixed with the barrel lateral surface of lattice cell.
Quantity, the position consistency of the guiding tube passage of the guiding tube passage and upper tube socket.
Gauge pipe is set in instrument tube passage, is welded and fixed with the barrel lateral surface of lattice cell.
A kind of fuel assembly, including upper tube socket, annular fuel element, bottom nozzle, guide pipe, gauge pipe further include described
Grid spacer.
Annular fuel element, guide pipe and the gauge pipe is inserted in grid spacer；Grid spacer have it is multiple, successively
It is axially disposed；The upper end of guide pipe and gauge pipe is fixedly connected with upper tube socket, and lower end is fixedly connected with bottom nozzle；
Bottom nozzle is inserted into the lower end of annular fuel element, is fixedly connected with bottom nozzle, when annular fuel element generates irradiation
When growth, expand upwards.
Remarkable result of the invention is:
(1) grid spacer of the present invention can be suitable for the fuel element of bigger outer diameter, first to fuel such as annular fuel element
Part provides located lateral and generates certain effect of mixing to coolant.
(2) common rod shaped fuel element can also be applied in grid spacer of the present invention, and can make coolant and fuel member
Part more fully contacts.
(3) grid spacer of the present invention can use buckle and adjacent lattice cell be fixed, and not have to be welded and fixed again, subtract
Shao Liao manufacturing process, reduces costs.
(4) the grid spacers clamping fuel elements that fuel assembly of the present invention is axially arranged using multiple, to fuel element into
Row is fixed, and keeps fuel element spacing, so that fuel element is located at fixed position in the reactor core of PWR nuclear power plant, and
Guide pipe can be made by cross-brace and positioning.
(5) fuel assembly of the present invention use fuel element lower end stationary structure, avoid hanging type fuel element by
To when long period irradiation, grid spacer chucking power reduces, and fuel element is caused to fall.
Detailed description of the invention
Fig. 1 is one schematic diagram of embodiment；
Fig. 2 is two schematic diagram of embodiment；
Fig. 3 is three schematic diagram of embodiment；
Fig. 4 is example IV schematic diagram.
In figure: 1. lattice cells；2. card hole；3. buckle；4. outer band；5. guide vane；6. being oriented to tube passage.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Embodiment one
The grid spacer is rearranged by lattice cell 1, and 1 section of lattice cell is octagon, in eight faces of lattice cell 1
On at interval of face process card hole 2；
The lattice cell 1 connects two-by-two, is fixed by way of spot welding, forms 15 × 15 arrangement.In lattice cell arrangement
Outside is equipped with outer band 4, and the height of outer band 4 is identical as the height of lattice cell 1.
It is equipped with guide vane 5 in the top edge of outer band 4 and lower edge, prevents fuel assembly mutual hook when assembly
It hangs.
By lattice cell arrange in a lattice cell 1 take out, the position of 1 vacancy of lattice cell is logical as guiding tube passage 6 or gauge pipe
Road.
The instrument tube passage has one, positioned at the center of lattice cell arrangement；Gauge pipe is set in instrument tube passage,
It is welded and fixed with the barrel lateral surface of lattice cell 1.
The guiding tube passage 6 has several, centered on instrument tube passage, is symmetrically arranged.Guide pipe is set to guiding
In tube passage 6, it is welded and fixed with the barrel lateral surface of lattice cell 1.The guiding tube passage of the guiding tube passage 6 and upper tube socket
Quantity, position consistency.
As shown in Figure 1, the card hole 2 on the face that two neighboring lattice cell 1 does not connect, is set on a face, there are four cards
Hole 2, arranges at 2x2.
The shape of the buckle 3 be it is I-shaped, fixed across card hole 2 and 1 wall of lattice cell, 3 smooth one sides of buckle are set on grid
1 inside of member, for clamping fuel element and generating the effect mixed to coolant.
Embodiment two
The grid spacer is rearranged by lattice cell 1, and 1 section of lattice cell is octagon, in eight faces of lattice cell 1
On at interval of face process card hole 2；
The lattice cell 1 connects two-by-two, is fixed by way of spot welding, forms 17 × 17 arrangement.In lattice cell arrangement
Outside is equipped with outer band 4, and the height of outer band 4 is identical as the height of lattice cell 1.
It is equipped with guide vane 5 in the top edge of outer band 4 and lower edge, prevents fuel assembly mutual hook when assembly
It hangs.
By lattice cell arrange in a lattice cell 1 take out, the position of 1 vacancy of lattice cell is logical as guiding tube passage 6 or gauge pipe
Road.
The instrument tube passage has one, positioned at the center of lattice cell arrangement；Gauge pipe is set in instrument tube passage,
It is welded and fixed with the barrel lateral surface of lattice cell 1.
The guiding tube passage 6 has several, centered on instrument tube passage, is symmetrically arranged.Guide pipe is set to guiding
In tube passage 6, it is welded and fixed with the barrel lateral surface of lattice cell 1.The guiding tube passage of the guiding tube passage 6 and upper tube socket
Quantity, position consistency.
As shown in Fig. 2, the card hole 2 on the face that two neighboring lattice cell 1 does not connect, is set on a face, there are two cards
Hole 2, longitudinal arrangement.
The shape of the buckle 3 is " B " shape, is fixed across card hole 2 and 1 wall of lattice cell, and 3 smooth one sides of buckle are set to lattice cell
1 inside, for clamping fuel element and generating the effect mixed to coolant.
Embodiment three
The grid spacer is rearranged by lattice cell 1, and 1 section of lattice cell is octagon, in eight faces of lattice cell 1
On at interval of face process card hole 2；
The lattice cell 1 connects two-by-two, is fixed by way of spot welding, forms 9 × 9 arrangement.In the outer of lattice cell arrangement
Side is equipped with outer band 4, and the height of outer band 4 is identical as the height of lattice cell 1.
It is equipped with guide vane 5 in the top edge of outer band 4 and lower edge, prevents fuel assembly mutual hook when assembly
It hangs.
By lattice cell arrange in a lattice cell 1 take out, the position of 1 vacancy of lattice cell is logical as guiding tube passage 6 or gauge pipe
Road.
The instrument tube passage has one, positioned at the center of lattice cell arrangement；Gauge pipe is set in instrument tube passage,
It is welded and fixed with the barrel lateral surface of lattice cell 1.
The guiding tube passage 6 has several, centered on instrument tube passage, is symmetrically arranged.Guide pipe is set to guiding
In tube passage 6, it is welded and fixed with the barrel lateral surface of lattice cell 1.The guiding tube passage of the guiding tube passage 6 and upper tube socket
Quantity, position consistency.
As shown in figure 3, the card hole 2 on the face that two neighboring lattice cell 1 connects, is set on a face, there are six card holes
2, it arranges and arranges at three rows two.
The shape of the buckle 3 is the figure of eight, there are three, two card holes 2 and 1 wall of lattice cell being each passed through in a line are solid
It is fixed, for clamping fuel element and generating the effect mixed to coolant.
Example IV
The grid spacer is rearranged by lattice cell 1, and 1 section of lattice cell is octagon, in eight faces of lattice cell 1
On at interval of face process card hole 2；
The lattice cell 1 connects two-by-two, is fixed by way of spot welding, forms the arrangement of 13x13.In the outer of lattice cell arrangement
Side is equipped with outer band 4, and the height of outer band 4 is identical as the height of lattice cell 1.
It is equipped with guide vane 5 in the top edge of outer band 4 and lower edge, prevents fuel assembly mutual hook when assembly
It hangs.
By lattice cell arrange in a lattice cell 1 take out, the position of 1 vacancy of lattice cell is logical as guiding tube passage 6 or gauge pipe
Road.
The instrument tube passage has one, positioned at the center of lattice cell arrangement；Gauge pipe is set in instrument tube passage,
It is welded and fixed with the barrel lateral surface of lattice cell 1.
The guiding tube passage 6 has several, centered on instrument tube passage, is symmetrically arranged.Guide pipe is set to guiding
In tube passage 6, it is welded and fixed with the barrel lateral surface of lattice cell 1.The guiding tube passage of the guiding tube passage 6 and upper tube socket
Quantity, position consistency.
As shown in figure 4, the card hole 2 on the face that two neighboring lattice cell 1 does not connect, is set on a face, there are three cards
Hole 2, forms a line.
It is described buckle 3 shape be sugarcoated haws shape, fixed across card hole 2 and 1 wall of lattice cell, for clamp fuel element and
The effect mixed is generated to coolant.
Embodiment five
The grid spacer is rearranged by lattice cell 1, and 1 section of lattice cell is octagon, in eight faces of lattice cell 1
On at interval of face process card hole 2；
The lattice cell 1 connects two-by-two, is fixed by way of spot welding, forms 3 × 3 arrangement.In the outer of lattice cell arrangement
Side is equipped with outer band 4, and the height of outer band 4 is identical as the height of lattice cell 1.
It is equipped with guide vane 5 in the top edge of outer band 4 and lower edge, prevents fuel assembly mutual hook when assembly
It hangs.
By lattice cell arrange in a lattice cell 1 take out, the position of 1 vacancy of lattice cell is logical as guiding tube passage 6 or gauge pipe
Road.
The instrument tube passage has one, positioned at the center of lattice cell arrangement；Gauge pipe is set in instrument tube passage,
It is welded and fixed with the barrel lateral surface of lattice cell 1.
The guiding tube passage 6 has several, centered on instrument tube passage, is symmetrically arranged.Guide pipe is set to guiding
In tube passage 6, it is welded and fixed with the barrel lateral surface of lattice cell 1.The guiding tube passage of the guiding tube passage 6 and upper tube socket
Quantity, position consistency.
The card hole 2 is set on the face that does not connect of two neighboring lattice cell 1, sets that there are three card holes 2 on a face, is arranged as
Triangle.
The shape of the buckle 3 is triangle, is fixed across card hole 2 and 1 wall of lattice cell, and 3 smooth one sides of buckle are set to grid
1 inside of member, for clamping fuel element and generating the effect mixed to coolant.
Embodiment six
The grid spacer is rearranged by lattice cell 1, and 1 section of lattice cell is octagon, in eight faces of lattice cell 1
On at interval of face process card hole 2；
The lattice cell 1 connects two-by-two, is fixed by way of spot welding, forms 5 × 5 arrangement.In the outer of lattice cell arrangement
Side is equipped with outer band 4, and the height of outer band 4 is identical as the height of lattice cell 1.
It is equipped with guide vane 5 in the top edge of outer band 4 and lower edge, prevents fuel assembly mutual hook when assembly
It hangs.
By lattice cell arrange in a lattice cell 1 take out, the position of 1 vacancy of lattice cell is logical as guiding tube passage 6 or gauge pipe
Road.
The instrument tube passage has one, positioned at the center of lattice cell arrangement；Gauge pipe is set in instrument tube passage,
It is welded and fixed with the barrel lateral surface of lattice cell 1.
The guiding tube passage 6 has several, centered on instrument tube passage, is symmetrically arranged.Guide pipe is set to guiding
In tube passage 6, it is welded and fixed with the barrel lateral surface of lattice cell 1.The guiding tube passage of the guiding tube passage 6 and upper tube socket
Quantity, position consistency.
The card hole 2 is set on the face that does not connect of two neighboring lattice cell 1, sets that there are five card holes 2 on a face, is arranged as
Pentagon.
The shape of the buckle 3 is pentagon, is fixed across card hole 2 and 1 wall of lattice cell, and 3 smooth one sides of buckle are set to grid
1 inside of member, for clamping fuel element and generating the effect mixed to coolant.
Fuel assembly for nuclear reactor of the present invention, including upper tube socket, annular fuel element, bottom nozzle, guide pipe, gauge pipe,
And grid spacer described in any of the above-described embodiment.
Annular fuel element, guide pipe and the gauge pipe is inserted in grid spacer；Grid spacer have it is multiple, successively
It is axially disposed；The upper end of guide pipe and gauge pipe is fixedly connected with upper tube socket, and lower end is fixedly connected with bottom nozzle；
Bottom nozzle is inserted into the lower end of annular fuel element, is fixedly connected with bottom nozzle, when annular fuel element generates irradiation
When growth, expand upwards.
The upper end of the upper tube socket is provided with upper tube socket holddown spring and upper tube socket dowel hole.Upper tube socket holddown spring
There are four altogether, it is separately positioned on the four edges at the top of tube socket, for compressing fuel assembly.Upper tube socket dowel hole shares two
It is a, it is separately positioned on diagonal at the top of tube socket, passes through the positioning realized with bayonet fittings to fuel assembly.
Guide pipe mounting hole, the first discharge orifice of bottom nozzle and the bottom nozzle of bottom nozzle are respectively arranged in the upper end of bottom nozzle
Second discharge orifice.The position of the guide pipe mounting hole of bottom nozzle is corresponding with the position of guide pipe, is used for fixed guide pipe, down tube
The first discharge orifice of seat and the second discharge orifice of bottom nozzle are for passing through coolant.
The annular fuel element can keep or promote existing reactor safety abundant due to using ring structure
Under the premise of degree, reactor core output power density is substantially improved, hence it is evident that improve the economy of nuclear power.Under accidental conditions, annular
Fuel element bulk temperature is far below rod shaped fuel element；Under major accident operating condition, the temperature of annular fuel pellet is low, energy storage
The process that few feature can delay fuel element cladding to fail, for subsequent accident mitigation and emergency response provide preciousness when
Between, improve the inherent safety of PWR nuclear power plant.Annular fuel element can also reduce the flow resistance of component, reactor core
Resistance reduces, and the output power of PWR nuclear power plant primary Ioops pump can be effectively reduced, and promotes service life.
Claims (16)
1. a kind of spacer grid of fuel assembly of band buckle, it is characterised in that: the grid spacer is by lattice cell (1) arrangement group
At in the outside of lattice cell arrangement equipped with outer band (4)；
Lattice cell (1) section is octagon, processes card hole (2) at interval of a face on eight faces of lattice cell (1)；
It buckles (3) and passes through card hole (2), be fixed on lattice cell (1), mixed for clamping fuel element and being generated to coolant
Effect.
2. a kind of spacer grid of fuel assembly of band buckle as described in claim 1, it is characterised in that: the height of outer band (4)
Degree is identical as the height of lattice cell (1), is equipped with guide vane (5) in the top edge of outer band (4) and lower edge, prevents fuel assembly
It is hooked mutually when assembly.
3. a kind of spacer grid of fuel assembly of band buckle as claimed in claim 2, it is characterised in that: the lattice cell (1)
Connect two-by-two, fixed by way of spot welding, forms the arrangement of M × M.
4. a kind of spacer grid of fuel assembly of band buckle as claimed in claim 3, it is characterised in that: the value of the M
Range is 3~17.
5. a kind of spacer grid of fuel assembly of band buckle as claimed in claim 4, it is characterised in that: the value of M is 5,9,
One in 13,15.
6. a kind of spacer grid of fuel assembly of band buckle as claimed in claim 4, it is characterised in that: the card hole (2)
On the face that two neighboring lattice cell (1) connects.
7. a kind of spacer grid of fuel assembly of band buckle as claimed in claim 4, it is characterised in that: the card hole (2)
On the face that two neighboring lattice cell (1) does not connect.
8. a kind of spacer grid of fuel assembly of band buckle as claimed in claims 6 or 7, it is characterised in that: set on a face
There are N number of card hole (2), N >=2.
9. a kind of spacer grid of fuel assembly of band buckle as claimed in claim 8, it is characterised in that: the buckle (3)
Shape is " B " shape, I-shaped, sugarcoated haws shape, triangle or pentagon.
10. a kind of spacer grid of fuel assembly of band buckle as claimed in claim 9, it is characterised in that: in arranging lattice cell
A lattice cell (1) take out, the position of lattice cell (1) vacancy is as guiding tube passage (6) or instrument tube passage.
11. a kind of spacer grid of fuel assembly with angle plug-in unit as claimed in claim 10, it is characterised in that: the instrument
Tube passage has one, is located at the center that lattice cell (1) is arranged with M × M；Guiding tube passage (6) has several, logical with gauge pipe
Centered on road, it is symmetrically arranged.
12. a kind of spacer grid of fuel assembly with angle plug-in unit as claimed in claim 11, it is characterised in that: guide pipe is set to
It is oriented in tube passage (6), is welded and fixed with the barrel lateral surface of lattice cell (1).
13. a kind of spacer grid of fuel assembly with angle plug-in unit as claimed in claim 12, it is characterised in that: the guiding
Quantity, the position consistency of the guiding tube passage of tube passage (6) and upper tube socket.
14. a kind of spacer grid of fuel assembly with angle plug-in unit as claimed in claim 13, it is characterised in that: gauge pipe is set to
In instrument tube passage, it is welded and fixed with the barrel lateral surface of lattice cell (1).
15. a kind of fuel assembly, including upper tube socket, annular fuel element, bottom nozzle, guide pipe, gauge pipe, it is characterised in that:
It further include such as the described in any item grid spacers of claim 9~14.
16. a kind of fuel assembly as claimed in claim 15, it is characterised in that: the annular fuel element, guide pipe and
Gauge pipe is inserted in grid spacer；Grid spacer have it is multiple, it is successively axially disposed；The upper end of guide pipe and gauge pipe with it is upper
Tube socket is fixedly connected, and lower end is fixedly connected with bottom nozzle；
Bottom nozzle is inserted into the lower end of annular fuel element, is fixedly connected with bottom nozzle, when annular fuel element generates irradiation growth
When, it expands upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711369490.2A CN109935367A (en) | 2017-12-19 | 2017-12-19 | A kind of spacer grid of fuel assembly and fuel assembly of band buckle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711369490.2A CN109935367A (en) | 2017-12-19 | 2017-12-19 | A kind of spacer grid of fuel assembly and fuel assembly of band buckle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109935367A true CN109935367A (en) | 2019-06-25 |
Family
ID=66983191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711369490.2A Pending CN109935367A (en) | 2017-12-19 | 2017-12-19 | A kind of spacer grid of fuel assembly and fuel assembly of band buckle |
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| CN (1) | CN109935367A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114673856A (en) * | 2022-04-12 | 2022-06-28 | 福州大学 | Pipeline vibration reduction framework based on metal rubber and working method thereof |
| CN115171923A (en) * | 2022-06-24 | 2022-10-11 | 上海核工程研究设计院有限公司 | Grid structure of fuel assembly and positioning grillwork |
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| KR20100086804A (en) * | 2009-01-23 | 2010-08-02 | 한국원자력연구원 | Space grid having movable pipe-shaped springs which are inserted into interior grid intersection regions |
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| CN104036832A (en) * | 2014-06-20 | 2014-09-10 | 中科华核电技术研究院有限公司 | Maintaining grating with double-blade spring and fuel assembly with grating |
| CN208111091U (en) * | 2017-12-19 | 2018-11-16 | 中国原子能科学研究院 | A kind of spacer grid of fuel assembly and fuel assembly of band buckle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114673856A (en) * | 2022-04-12 | 2022-06-28 | 福州大学 | Pipeline vibration reduction framework based on metal rubber and working method thereof |
| CN115171923A (en) * | 2022-06-24 | 2022-10-11 | 上海核工程研究设计院有限公司 | Grid structure of fuel assembly and positioning grillwork |
| CN115171923B (en) * | 2022-06-24 | 2024-06-07 | 上海核工程研究设计院股份有限公司 | Fuel assembly grid structure and positioning grid |
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