CN107240424A - A kind of fuel assembly - Google Patents
A kind of fuel assembly Download PDFInfo
- Publication number
- CN107240424A CN107240424A CN201710365577.6A CN201710365577A CN107240424A CN 107240424 A CN107240424 A CN 107240424A CN 201710365577 A CN201710365577 A CN 201710365577A CN 107240424 A CN107240424 A CN 107240424A
- Authority
- CN
- China
- Prior art keywords
- stitching portion
- fuel assembly
- stitching
- grid cell
- filter
- 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.)
- Granted
Links
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
- G21C3/3206—Means associated with the fuel bundle for filtering the coolant, e.g. nozzles, 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
- G21C3/348—Spacer grids formed of assembled non-intersecting strips
-
- 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
- G21C3/3432—Grids designed to influence the coolant, i.e. coolant mixing function
-
- 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)
- Fuel Cell (AREA)
Abstract
The present invention relates to a kind of fuel assembly for nuclear reactor, including filter, along screen work of the longitudinal direction on the filter and along the fuel rod being longitudinally mounted in the screen work；The filter includes the cell board that multi-disc is arranged in order, and two cell boards of arbitrary neighborhood form the longitudinal flow through hole of multiple insertions in the split each other of multiple stitching portions；The screen work includes multiple first bands and multiple second strips, first band and the second strip, which intersect, cooperatively forms multiple grid cells, the fuel rod correspondence is located in the grid cell, and the drop shadow spread of at least one grid cell is only comprising a stitching portion.By the position for adjusting grid cell, the drop shadow spread of grid cell is set only to include a stitching portion of filter, so as to by the use of the first band of grid cell, second strip as a block piece, to split the delivery port of filter, and then improve filter capacity.
Description
Technical field
The present invention relates to technical field of nuclear power, more particularly to a kind of fuel assembly.
Background technology
Nuclear reactor is by manually controlling the chain nuclear fission of fissile material to react, for producing heat etc., being sent out
Electricity etc..
Nuclear fuel is generally processed into fuel rod by existing nuclear reactor, is combined and is installed in location grid with control rod,
Form nuclear fuel assembly.Generally, location grid includes some bands, and band intersects settings in same level, is formed
Multiple lattice cells.Fuel rod, control rod etc. are arranged in corresponding lattice cell, constitute overall nuclear fuel assembly.
In nuclear reactor, fuel rod of the coolant flow through fuel assembly of cooling recirculation system, by moderation of neutrons and band
Walk disintegration energy.During the circulating cooling, cooling agent flows through between each fuel rod, if the coolant flow ejector half between fuel rod
State skewness weighs, and unbalanced pressure distribution will be produced between fuel rod so that fuel rod is by fluid pressure differential, in the pressure
Power difference in the presence of, fuel rod may install shakiness, or even shake, if shaking amplitude is larger, it is also possible to it is neighbouring
Fuel rod comes in contact, and forms larger potential safety hazard.For fuel assembly, how during circulating cooling
Ensure that cooling agent flow pattern distributing equilibrium is particularly important.
Further, since the filter on bottom nozzle is usually single layer filter, its strainability is not enough, is easily caused debris
Enter grid cell with fluid, unnecessary impact is caused to fuel rod clad, there is potential safety hazard.
The content of the invention
The technical problem to be solved in the present invention is to improve filter capacity, combustion for nuclear reactor there is provided a kind of
Expect component.
The technical solution adopted for the present invention to solve the technical problems is：The present invention provides a kind of for nuclear reactor
Fuel assembly, including filter, along screen work of the longitudinal direction on the filter and along being longitudinally mounted to the lattice
Fuel rod in frame；The filter includes the cell board that multi-disc is arranged in order, and two cell boards of arbitrary neighborhood exist
The split each other of multiple stitching portions, forms the longitudinal flow through hole of multiple insertions；The screen work includes multiple first bands and multiple
Second strip, first band and the second strip are intersecting to cooperatively form multiple grid cells, the fuel rod correspondence position
In in the grid cell, the drop shadow spread of at least one grid cell is only comprising a stitching portion.
It is preferred that, one stitching portion of each fuel rod correspondence covering.
It is preferred that, the fuel rod also covers at least a portion of at least one fluid through-hole.
It is preferred that, first band and at least one in the joining of the second strip and a stitching portion
Overlap.
It is preferred that, along cross-sectional direction, at least one in multiple first bands and multiple second strips is horizontal
Across or split at least one described fluid through-hole.
It is preferred that, the stitching portion includes the first stitching portion and the second stitching portion, each first stitching portion correspondence position
In in a grid cell, and correspondingly covered by the fuel rod in the grid cell；Each second stitching portion
Overlapped with one in the joining of first band and the second strip.
It is preferred that, on cross section, the wire length between two adjacent first stitching portions is the first distance, phase
Wire length between two adjacent second stitching portions is second distance, first distance and the second distance length
It is equal.
It is preferred that, the line of second stitching portion to two first stitching portion adjacent with second stitching portion it
Between vertical range be the two first stitching portions between the first distance 1/2nd.
It is preferred that, the cross sectional shape of the fluid through-hole is rhombus, square, circular and at least one of oval.
It is preferred that, in the stitching portion, by welding split between two adjacent cell boards.
Implement technical scheme, by adjusting the position of grid cell, the drop shadow spread of grid cell is only wrapped
A stitching portion containing filter, so that the first band, second strip by the use of grid cell are as a block piece, to divide
The delivery port of filter is cut, and then improves filter capacity.
Further, since fuel rod can be crossed at least two delivery ports of filter so that fluid can be sufficient
The outer wall of fuel rod is flowed through, the heat of fuel rod is taken away, reduces pressure drop, improve heat transfer effect.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of the fuel assembly according to the embodiment of the present invention；
The view that Fig. 2 is Fig. 1 from the bottom surface of bottom nozzle along A directions；
Fig. 3 is the partial longitudinal cross section of filter；
Fig. 4 is view of the bottom surface from bottom nozzle along A directions according to a specific embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Referring to Fig. 1, the fuel assembly 1 in nuclear reactor includes upper base 11, guide pipe 12, screen work 13, fuel rod
14 and bottom nozzle 15.For convenience of description, following orientation description used herein, is vertical between upper base 11 and bottom nozzle 15
To upper base 11 is longitudinally being located on bottom nozzle 15.
Screen work 13 is located between upper base 11 and bottom nozzle 15 along longitudinal direction, and the screen work 13 includes multiple grid cells（In Fig. 1
It is not shown）, the grid cell can be square.Guide pipe 12 along longitudinal direction be located between upper base 11 and bottom nozzle 15, one end with
Upper base 11 is fixedly linked, and the other end is fixedly linked with bottom nozzle 15, can be parallel to each other between guide pipe 12, and located at grid list
In member, thus screen work 13 can be directed to pipe 12 and be spaced apart from each other, and control the spacing between guide pipe 12, form fuel assembly 1
Support frame.Fuel rod 14 is located between upper base 11 and bottom nozzle 15 along longitudinal direction, and in screen work 13, general each fuel
Rod 14 is parallel to each other, located at not being directed in the grid cell that pipe 12 is occupied.
The view that Fig. 2 is Fig. 1 from the bottom surface of bottom nozzle 15 along A directions, referring to Fig. 2, screen work 13 includes multiple first
Band 131 and multiple second strips 132, the first band 131 and second strip 132 are intersecting to cooperatively form multiple grid cells 130, fires
The correspondence of charge bar 14 is located in grid cell 130.For example, multiple first bands 131 are parallel to each other, multiple second strips 132 are each other
Parallel, orthogonal intersection forms multiple joinings between the first band 131 and second strip 132, then forms multiple square grids
Unit 130.
Cooling agent flows through fuel assembly 1 from the bottom of bottom nozzle 15, and is flowed out from upper base 11.Would generally in cooling agent
Carry foreign matter secretly, these foreign matters easily denude fuel rod 14 during flowing through fuel rod 14, thus need to be in coolant flow through fuel rod 14
It is filtered before, to remove foreign matter.In bottom nozzle 15 be provided with filter 150, with coolant flow through fuel rod 14
Preceding filtering is more than the foreign matter of preliminary dimension, so as to reduce damage of the foreign matter to fuel rod 14 as far as possible.
Filter 150 includes the cell board that multi-disc is arranged in order, such as cell board 151-153, two of arbitrary neighborhood
Cell board forms the longitudinal flow through hole of multiple insertions in the split each other of multiple stitching portions.For example, cell board 151 and 152 is at least
In the split of stitching portion 154 and 156, the two cell boards enclose to form clearance space 1501 between above-mentioned two stitching portion, should
Clearance space 1501 is above-mentioned longitudinal flow through hole, and cooling agent can flow through from the fluid through-hole.Fluid through-hole（For example fluid leads to
Hole 1501）Cross sectional shape be rhombus, it is square, circular and at least one of oval, the section is transversely to the machine direction.Cell board
Between can use various ways split, such as can also pass through other companies by welding split between two adjacent cell boards
Fitting split, here is omitted.
Referring to Fig. 3, Fig. 3 is the partial longitudinal cross section of filter 150, in the embodiment of the present invention,
The fluid passage of the formation of cell board 151 includes straight section fluid intake 15a, the straight section stream of multiple partitioned arrangements of multiple partitioned arrangements
Body, which exports 15c and connects arrow in straight section fluid intake 15a and straight section fluid issuing 15c fluid subchannel 15b, figure, to be shown
The flow direction of cooling agent is gone out.Each straight section fluid intake 15a in centre position outlet section respectively with two fluid subchannel 15b
Connection, also, two fluid subchannel 15b connect with two adjacent straight section fluid issuing 15c respectively, centre position it is each
Straight section fluid issuing 15c entrance is connected with two fluid subchannel 15b respectively.Be segmented multiple times of filtration foreign matter, reduce by
In foreign matter all after once filtering blocking filtering device risk, and clamp and be deposited in the bottom nozzle 15 of fuel assembly 1
Middle foreign matter, under moving to the foreign matter total amount in out-pile, whole primary Ioops cooling agent together significantly along with the discharging of fuel assembly 1
Drop.
In fuel assembly 1, because fuel rod 14 is in grid cell 130, therefore can be by grid cell 130 come spacing combustion
Charge bar 14, with the arrangement of reasonable distribution fuel rod 14.And the filtering that cooling agent need to flow through filter 150 can just flow through fuel rod
14, thus grid cell 130 and filter 150 cooperation cooling agent will be influenceed to the flow pattern distribution of fuel rod 14 and
Filter the efficiency of foreign matter.In the present invention, each grid cell 130 along longitudinal direction in the projection of bottom nozzle 15, at least one grid list
The drop shadow spread of member 130 only includes a stitching portion.For the grid cell 130, multiple fluid passages are around only
One stitching portion, is conducive to balancing the flow pattern distribution for the cooling agent for flowing through this grid cell 130, reduces fuel rod 14 weeks
The formation of side pressure differential.
Further, one stitching portion of each correspondence of fuel rod 14 covering, herein described covering refers to fuel rod 14
Along longitudinal direction, the drop shadow spread on bottom nozzle 15 includes a stitching portion.So as to utilize the first band of grid cell, Article 2
Band to split the delivery port of filter, and then improves filter capacity as a block piece.
The fuel rod 14 not merely covers stitching portion, also at least covers at least a portion of a fluid through-hole, herein
Covering refer at least a portion that fuel rod 14 includes a fluid through-hole along drop shadow spread of the longitudinal direction on bottom nozzle 15.
For example, during circulating cooling, cooling agent, by rear, flows from multiple fluid passages around stitching portion 154 around fuel rod 14
Cross, further balance flows through the flow pattern distribution of the cooling agent of this grid cell 130.Because fuel rod can be crossed on
Filter at least two delivery ports of device so that fluid can sufficiently flow through the outer wall of fuel rod, take away the heat of fuel rod, drop
Low pressure drop, improves heat transfer effect.
In screen work 13, the first band 131 with multiple joinings of second strip 132, at least one and a splicing
Place is overlapped, for example, a joining is overlapped with stitching portion 155, this is beneficial to the same equilibrium for deleting fluid through-hole in a unit
Distribution.And, along and longitudinally perpendicular cross-sectional direction, at least one in multiple first bands 131 and multiple second strips 132
Across or split at least one fluid through-hole, effectively to distribute the fluid through-hole in single grid cell 130 around stitching portion
Distribution.Above-mentioned setting can further balance the flow pattern distribution for the cooling agent for flowing through this grid cell 130.
Referring to Fig. 4, in the embodiment of the present invention, stitching portion includes the first stitching portion 154,156 and second
Stitching portion 155,157, each first stitching portion correspondence is located in a grid cell 130, and correspondingly by the grid cell 130
Fuel rod 14 cover；Each second stitching portion is overlapped with one in the joining of the first band 131 and second strip 132,
I.e. one the second stitching portion is with a joining on same longitudinal line.Thus, in the drop shadow spread of each grid cell 130
Not comprising complete fluid through-hole, each fluid through-hole by a band across or cutting.Under the setting, grid list
The fluid through-hole increasing number that the drop shadow spread of member 130 includes, flows through the flow pattern distribution of cooling agent of grid cell 130 more
Plus it is balanced.Meanwhile, because each fluid through-hole is divided, thus large-sized foreign matter can be avoided to be flowed through between fuel rod 14,
Further increase filtering efficiency.
Referring also to Fig. 4, with longitudinally perpendicular cross section, the wire length between two adjacent the first stitching portions is
First, apart from L1, refers specifically to be formed the first stitching portion of adjacent two 154,156 of same fluid through-hole；Adjacent two
Wire length between second stitching portion is second distance L2, refers specifically to be formed adjacent two the of same fluid through-hole
Two stitching portions 155,157, above-mentioned first apart from L1 and second distance L2 equal lengths.Further, the second stitching portion 155 arrive with
Vertical range L3 between the line of two adjacent the first stitching portions 154,156 of second stitching portion 155 for the two first
Between stitching portion 154,156 first apart from 1/2nd of L1, equally, refer specifically to the second stitching portion 155 same with being formed
The first stitching portion of adjacent two 154,156 of one fluid through-hole.Above-mentioned setting may be such that each stream in single grid cell 130
Body through hole is dimensionally distributed more uniformly, so that the flow pattern distribution for flowing through the cooling agent of grid cell 130 is more balanced.
To sum up, in the present invention, each grid cell edge longitudinal direction is in the projection of bottom nozzle, the projection of at least one grid cell
Scope only includes a stitching portion, for the grid cell, and multiple fluid passages surround an only stitching portion, favorably
The flow pattern distribution of the cooling agent of this grid cell is flowed through in balance, the formation of fuel rod circumferential pressure difference is reduced, so that
Reduce potential safety hazard.
Step in the method for the embodiment of the present invention can be sequentially adjusted, merged and deleted according to actual needs.This
Module or unit or subelement in the device of inventive embodiments can be combined, divided and deleted according to actual needs.
Above disclosed is only presently preferred embodiments of the present invention, can not limit the right of the present invention with this certainly
Scope, one of ordinary skill in the art will appreciate that all or part of flow of above-described embodiment is realized, and according to right of the present invention
It is required that the equivalent variations made, still fall within and invent covered scope.
Claims (10)
1. a kind of fuel assembly for nuclear reactor, including filter, along screen work of the longitudinal direction on the filter,
And along the fuel rod being longitudinally mounted in the screen work；The filter includes the cell board that multi-disc is arranged in order, arbitrarily
Two adjacent cell boards form the longitudinal flow through hole of multiple insertions in the split each other of multiple stitching portions；The screen work
Including multiple first bands and multiple second strips, first band and the second strip are intersecting to cooperatively form multiple grids
Unit, the fuel rod correspondence is located in the grid cell, it is characterised in that the projection model of at least one grid cell
Enclose only comprising a stitching portion.
2. fuel assembly according to claim 1, it is characterised in that each fuel rod correspondence covering one is described to spell
Meet place.
3. fuel assembly according to claim 2, it is characterised in that the fuel rod also covers at least one described fluid
At least a portion of through hole.
4. fuel assembly according to claim 1, it is characterised in that first band intersects with the second strip
At least one in point is overlapped with a stitching portion.
5. fuel assembly according to claim 1, it is characterised in that along cross-sectional direction, multiple first bands and
In multiple second strips at least one across or split at least one described fluid through-hole.
6. fuel assembly according to claim 1, it is characterised in that the stitching portion includes the first stitching portion and second and spelled
Place is met, each first stitching portion correspondence is located in a grid cell, and correspondingly described in the grid cell
Fuel rod is covered；Each second stitching portion and a weight in the joining of first band and the second strip
Close.
7. fuel assembly according to claim 6, it is characterised in that on cross section, adjacent two described first spell
Wire length between connecing be the wire length between the first distance, two adjacent second stitching portions for second away from
From first distance and the second distance equal length.
8. fuel assembly according to claim 7, it is characterised in that second stitching portion to the second stitching portion phase
Vertical range between the line of two adjacent first stitching portions is the first distance between the two first stitching portions
1/2nd.
9. fuel assembly according to claim 1, it is characterised in that the cross sectional shape of the fluid through-hole is rhombus, side
At least one of shape, circle and ellipse.
10. fuel assembly according to claim 1, it is characterised in that in the stitching portion, two adjacent units
By welding split between plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710365577.6A CN107240424B (en) | 2017-05-22 | 2017-05-22 | A kind of fuel assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710365577.6A CN107240424B (en) | 2017-05-22 | 2017-05-22 | A kind of fuel assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107240424A true CN107240424A (en) | 2017-10-10 |
| CN107240424B CN107240424B (en) | 2019-11-15 |
Family
ID=59985536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710365577.6A Active CN107240424B (en) | 2017-05-22 | 2017-05-22 | A kind of fuel assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107240424B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115206558A (en) * | 2022-07-07 | 2022-10-18 | 中国核动力研究设计院 | Fuel assembly lower tube seat based on multilayer staggered lattice structure, filter body and application |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001133574A (en) * | 1999-11-01 | 2001-05-18 | Nuclear Fuel Ind Ltd | Lower tie plate of fuel assembly |
| US20040076253A1 (en) * | 2001-01-22 | 2004-04-22 | Anders Soderlund | Filter for cooling water in a light water cooled nuclear reactor |
| JP2005172748A (en) * | 2003-12-15 | 2005-06-30 | Global Nuclear Fuel-Japan Co Ltd | Foreign matter filter for reactor and fuel assembly |
| US20060045231A1 (en) * | 2004-09-02 | 2006-03-02 | Lee Yu C | Nuclear fuel assembly protective grid |
| WO2013053128A1 (en) * | 2011-10-14 | 2013-04-18 | 中科华核电技术研究院有限公司 | Bottom nozzle filter device and debris-resistant bottom nozzle using the device |
| CN103247351A (en) * | 2013-01-14 | 2013-08-14 | 上海核工程研究设计院 | Low-pressure-drop foreign matter prevention type lower pipe seat of fuel assembly |
| CN104575628A (en) * | 2014-12-19 | 2015-04-29 | 上海核工程研究设计院 | Fuel assembly lower tube seat with double foreign matter prevention functions |
| EP3007174A1 (en) * | 2014-10-08 | 2016-04-13 | Otkritoye akcionernoe obshchestvo "Mashinostroitelny zavod" | Fuel element support and debris filtering lattice for a nuclear fuel assembly |
-
2017
- 2017-05-22 CN CN201710365577.6A patent/CN107240424B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001133574A (en) * | 1999-11-01 | 2001-05-18 | Nuclear Fuel Ind Ltd | Lower tie plate of fuel assembly |
| US20040076253A1 (en) * | 2001-01-22 | 2004-04-22 | Anders Soderlund | Filter for cooling water in a light water cooled nuclear reactor |
| JP2005172748A (en) * | 2003-12-15 | 2005-06-30 | Global Nuclear Fuel-Japan Co Ltd | Foreign matter filter for reactor and fuel assembly |
| US20060045231A1 (en) * | 2004-09-02 | 2006-03-02 | Lee Yu C | Nuclear fuel assembly protective grid |
| WO2013053128A1 (en) * | 2011-10-14 | 2013-04-18 | 中科华核电技术研究院有限公司 | Bottom nozzle filter device and debris-resistant bottom nozzle using the device |
| CN103247351A (en) * | 2013-01-14 | 2013-08-14 | 上海核工程研究设计院 | Low-pressure-drop foreign matter prevention type lower pipe seat of fuel assembly |
| EP3007174A1 (en) * | 2014-10-08 | 2016-04-13 | Otkritoye akcionernoe obshchestvo "Mashinostroitelny zavod" | Fuel element support and debris filtering lattice for a nuclear fuel assembly |
| CN104575628A (en) * | 2014-12-19 | 2015-04-29 | 上海核工程研究设计院 | Fuel assembly lower tube seat with double foreign matter prevention functions |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115206558A (en) * | 2022-07-07 | 2022-10-18 | 中国核动力研究设计院 | Fuel assembly lower tube seat based on multilayer staggered lattice structure, filter body and application |
| CN115206558B (en) * | 2022-07-07 | 2024-04-19 | 中国核动力研究设计院 | Fuel assembly lower tube seat based on multilayer staggered lattice structure, filter body and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107240424B (en) | 2019-11-15 |
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