CN106782683A - Fuel assembly and its base and the anti-foreign matter component for being applied to base - Google Patents
Fuel assembly and its base and the anti-foreign matter component for being applied to base Download PDFInfo
- Publication number
- CN106782683A CN106782683A CN201611094689.4A CN201611094689A CN106782683A CN 106782683 A CN106782683 A CN 106782683A CN 201611094689 A CN201611094689 A CN 201611094689A CN 106782683 A CN106782683 A CN 106782683A
- Authority
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- China
- Prior art keywords
- foreign matter
- barrier ribs
- hole
- isolated
- plate
- 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.)
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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
- G21C3/332—Supports for 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
- G21C3/33—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
-
- 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
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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-Injection Apparatus (AREA)
Abstract
The present invention relates to a kind of fuel assembly and its base and the anti-foreign matter component for being applied to base, base includes orifice plate, orifice plate is provided with the opening for cooling agent circulation, anti- foreign matter component includes anti-foreign matter plate, anti- foreign matter plate is provided with some anti-foreign matter holes run through, anti- foreign matter hole is non-square structure, and corresponding with the position of opening.The anti-foreign matter plate of anti-foreign matter component of the invention uses non-square structure, the width of different directions then can be different, can be on the premise of identical circulation area be ensured, anti- foreign matter hole is allowed to become irregular shape, reduce the appearance and size that anti-foreign matter hole is available for foreign matter to pass through, preferable filter effect can be played, strengthens the anti-foreign matter performance of bottom nozzle；In the case where anti-foreign matter efficiency is certain, can allow less by the rib in unit area, then the on-way resistance of pressure drop can be allowed smaller, reduce step-down.
Description
Technical field
The present invention relates to nuclear power field, more specifically to a kind of fuel assembly and its base and base is applied to
Anti- foreign matter component.
Background technology
In the bottom nozzle design process of current fuel assembly, bottom nozzle includes connecting plate and anti-foreign matter plate.Bottom nozzle
The design of anti-foreign matter plate arranges that its discharge orifice is by using spark machined mode on sheet material using crisscross straight muscle
Formed.The thickness of the design rib is larger, and pressure drop performance is poor.Discharge orifice uses squared design, anti-foreign matter poor-performing simultaneously.
In order to further reduce pressure drop and improve anti-foreign matter ability, a kind of new anti-foreign matter plate and corresponding bottom nozzle are proposed.
The content of the invention
The technical problem to be solved in the present invention is, there is provided a kind of improved fuel assembly and its base and be applied to base
Anti- foreign matter component.
The technical solution adopted for the present invention to solve the technical problems is：A kind of anti-foreign matter group for being applied to base of construction
Part, the base includes orifice plate, and the orifice plate is provided with the opening for cooling agent circulation,
The anti-foreign matter component includes anti-foreign matter plate, and the anti-foreign matter plate is provided with some anti-foreign matter holes run through, described
Anti- foreign matter hole is non-square structure, and corresponding with the position of the opening.
Preferably, the anti-foreign matter hole includes two first isolated borders and two second isolated borders；
First isolated border described in two is set and respectively positioned at the two opposite sides in the anti-foreign matter hole in the first direction,
Second isolated border described in two is set and respectively positioned at the two opposite sides in the anti-foreign matter hole in a second direction；
First isolated border is set with the inclined angle of second isolated border.
Preferably, two relative first isolated borders and two relative second isolated borders enclose anti-foreign matter described in shape
Hole.
Preferably, the anti-foreign matter plate includes the first framework and is connected to some between the inside casing of first framework
First barrier ribs and some second barrier ribs；
Some first barrier ribs are set along the first direction, and mutually spacing side by side, some second isolation
Rib is set along the second direction, and mutually spacing side by side；
The direction difference of first barrier ribs, the second barrier ribs, it is arranged in a crossed manner to form some anti-foreign matter holes；
First barrier ribs segmentation is shaped as second barrier ribs some first isolated borders in the anti-foreign matter hole,
Second barrier ribs segmentation is shaped as first barrier ribs second isolated border in the anti-foreign matter hole.
Preferably, in first isolated border in the anti-foreign matter hole, second isolated border at least while for non-straight
Side.
Preferably, in first isolated border in the anti-foreign matter hole, second isolated border at least while to correspondence
Described anti-foreign matter hole internal projection.
Preferably, bent to one side of the anti-foreign matter hole internal projection in first isolated border, second isolated border
Set；And/or, bent to one side of the anti-foreign matter hole internal projection in first isolated border, second isolated border and set.
Preferably, the first barrier ribs undulate transverse curvature is set, second barrier ribs with described first every
Intersect from rib, first barrier ribs are split the first isolated border to be formed to the anti-foreign matter hole internal projection.
Preferably, corrugated first barrier ribs are formed on length direction and are arranged alternately and respectively to laterally two
Arch upward crest, the trough of setting for opposite side, each second barrier ribs along orientation alternately with first barrier ribs
Crest, trough connection, and same second barrier ribs are connected with the crest or trough of each first barrier ribs.
Preferably, the crest of first barrier ribs, wave trough position are respectively equipped with the first bayonet socket, on second barrier ribs
The second bayonet socket for engaging with the first bayonet socket on each first barrier ribs respectively is provided with along its length.
Preferably, first barrier ribs, the second barrier ribs are banding, and width along the anti-foreign matter hole
It is axially arranged.
Preferably, the mounting hole installed for guide pipe is also distributed with the orifice plate, the anti-foreign matter plate is provided with and institute
State mounting hole corresponding first and avoid hole.
Preferably, the anti-foreign matter component includes at least two anti-foreign matter plates being stacked, and each anti-foreign matter plate exists
Shifted to install in circumference, and the anti-foreign matter hole site of each anti-foreign matter plate is corresponding.
The present invention also constructs a kind of base, including orifice plate, and the orifice plate is provided with the opening for cooling agent circulation, also wraps
Described anti-foreign matter component is included, the anti-foreign matter component is arranged at the upside or downside of the orifice plate.
The present invention also constructs a kind of fuel assembly, including described base.
Implement fuel assembly of the invention and its base and be applied to the anti-foreign matter component of base, with following beneficial effect
Really：The anti-foreign matter plate of anti-foreign matter component of the invention uses non-square structure, and the width of different directions then can be different, Ke Yi
On the premise of ensureing identical circulation area, allow anti-foreign matter hole to become irregular shape, reduce anti-foreign matter hole and be available for what foreign matter passed through
Appearance and size, can play preferable filter effect, strengthen the anti-foreign matter performance of bottom nozzle；In the certain situation of anti-foreign matter efficiency
Under, can allow less by the rib in unit area, then the on-way resistance of pressure drop can be allowed smaller, reduce step-down.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is the structural representation of the fuel assembly in the embodiment of the present invention；
Fig. 2 is that bottom nozzle looks up direction structure schematic diagram in Fig. 1；
Fig. 3 is the front view of the anti-foreign matter plate in Fig. 2；
Fig. 4 is the enlarged diagram in the anti-foreign matter hole in Fig. 3；
Structural representation when Fig. 5 is the first barrier ribs of the anti-foreign matter plate in Fig. 2, the second barrier ribs intersect.
Specific embodiment
In order to be more clearly understood to technical characteristic of the invention, purpose and effect, now compare accompanying drawing and describe in detail
Specific embodiment of the invention.
As shown in figure 1, the fuel assembly in a preferred embodiment of the invention includes skeleton and fuel rod 1, fuel rod 1 exists
It is arranged in parallel and by even partition in rigid backbone.Rigid backbone includes mixing grillwork 2, grid spacer 3, upper base 4, bottom nozzle
5 and guide pipe 6.Mixing grillwork 2 and grid spacer 3 are respectively by the regularly arranged lattice cell group for accommodating and clamping fuel rod 1
Into.Grid spacer 3 and mixing grillwork 2 are set in the axially spaced-apart of fuel rod 1, and positioning is worn for fuel rod 1.Guide pipe 6 is than combustion
Charge bar 1 is grown, and it is stretched from the end of the beam of fuel rod 1, and is fixed on base 4 and bottom nozzle 5.Bottom nozzle 5 is located at fuel
, with some supporting legs 51 and an orifice plate 52, there are some mounting holes for fixed guide pipe 6 bottom of component on orifice plate 52
521 and for cooling agent circulation opening 522.The upper base 4 of the other end of fuel assembly, i.e. component upper end, including a horizontal stroke
To matching disc, have some accommodate and fixed guide pipe 6 duct and discharge orifice run through the matching board.
With reference to shown in Fig. 2, Fig. 3, bottom nozzle 5 includes base body and anti-foreign matter component.Base body includes orifice plate 52
With the supporting leg 51 for being arranged on the downside of orifice plate 52, orifice plate 52 is provided with for the opening 522 of cooling agent circulation and pacifies for guide pipe 6
Fill fixed mounting hole 521.Generally, orifice plate 52 is provided with multiple openings 522, the array distribution of opening 522, it is ensured that cooling agent
Uniform circulation.Anti- foreign matter component is arranged at the downside of orifice plate 52, and the cooling agent to flowing up is filtered, and prevents foreign matter A from entering
Enter to opening 522, it is to avoid the parts such as fuel rod 1, screen work are caused to damage.In other embodiments, cooling agent be alternatively from
Upper flow down, anti-foreign matter component will then be arranged on the corresponding upside of orifice plate 52 of base 4.
With reference to shown in Fig. 4, Fig. 5, anti-foreign matter component includes anti-foreign matter plate 53, anti-foreign matter plate 53 be provided with it is some run through it is anti-
Foreign matter hole 531, anti-foreign matter hole 531 is non-square structure, and corresponding with the position of the opening 522, makes coolant different through preventing
Flowed to opening in thing hole 531.Using non-square structure, on the premise of identical circulation area is ensured anti-foreign matter hole can be allowed
531 become irregular shape, reduce the appearance and size that anti-foreign matter hole 531 is available for foreign matter A to pass through, and can play preferably filtering effect
Really, the anti-foreign matter A performances of bottom nozzle 5 are strengthened.
Anti- foreign matter plate 53 include the first framework 532 and be connected between the inside casing of the first framework 532 some first every
From rib 533 and some second barrier ribs 534.Some first barrier ribs 533 are set in the first direction, and mutually spacing side by side, if
Dry second barrier ribs 534 are set in a second direction, and mutually spacing side by side.
Further, the direction difference of the first barrier ribs 533, the second barrier ribs 534, arranged in a crossed manner to form some anti-foreign matters
Hole 531.After the first barrier ribs 533, the second barrier ribs 534 intersect, be divided into for the first barrier ribs 533 by the second barrier ribs 534
Some first isolated borders 5331 in anti-foreign matter hole 531 are formed, the segmentation of the second barrier ribs 534 is shaped as preventing by the first barrier ribs 533
Second isolated border 5341 in foreign matter hole 531.
Preferably, the first barrier ribs 533, the second barrier ribs 534 are banding, and width along anti-foreign matter hole 531
It is axially arranged, under intensity square one, the first barrier ribs 533, the wall thickness of the second barrier ribs 534 can be reduced, increase anti-
The total circulation area of foreign matter plate 53, reduces pressure drop.
Two first isolated borders 5331 are set and respectively positioned at the two opposite sides in anti-foreign matter hole 531, two second in the first direction
Isolated border 5341 is set and respectively positioned at the two opposite sides in anti-foreign matter hole 531 in a second direction.Two the first relative isolated borders
5331 and two the second relative isolated border 5341 enclose the anti-foreign matter hole 531 of shape, and the first isolated border 5331 and the second isolated border
5341 inclined angles are set, allow anti-foreign matter hole 531 profile to be not square, the width of different directions then can be different,
In the case of keeping circulation area constant, reduction is available for the appearance and size that foreign matter A passes through.
In other embodiments, other connecting portions can be also connected between the first isolated border 5331 and the second isolated border 5341
Part, allows anti-foreign matter hole 531 to reduce the appearance and size for being available for foreign matter A to pass through.
Further, the undulate transverse curvature of the first barrier ribs 533 setting, the second barrier ribs 534 and the first barrier ribs
533 intersect, and the first barrier ribs 533 are split the first isolated border 5331 to be formed to the anti-internal projection of foreign matter hole 531.
Corrugated first barrier ribs 533 are formed on length direction and are arranged alternately and respectively to horizontal two opposite sides arch
Act crest, the trough for setting, crest, trough company of each second barrier ribs 534 along orientation alternately with the first barrier ribs 533
Connect, and same second barrier ribs 534 are connected with the crest or trough of each first barrier ribs 533.
The connected mode may be such that the profile of first isolated border 5331 in same anti-foreign matter hole 531 is identical, the first isolated border
The shape of 5331 bendings, can rise respectively to the anti-internal projection of foreign matter hole 531 that same first isolated border 5331 corresponding two is adjacent
To the effect for reducing the two adjacent anti-profiles of foreign matter hole 531 simultaneously.
Four skirts in anti-foreign matter hole 531 form the shape of class rhombus after closing, in the case of area equation, compared to more square
Runner, the foreign matter A effective dimensions that class rhombus runner can pass through is smaller, therefore is remarkably improved foreign matter A filtering efficiencies.Further
Ground, in the case where anti-foreign matter efficiency is certain, can allow less by rib in unit area, then can allow pressure drop along journey
Resistance is smaller, reduces step-down.
As shown in figure 5, in certain embodiments, the first barrier ribs 533, the second mutually assembling of barrier ribs 534, for the ease of
Assembling, and normal appearance is not interfered with after assembling, the crest of the first barrier ribs 533, wave trough position are respectively equipped with the first bayonet socket
5332, it is provided with what is engaged with the first bayonet socket 5332 on each first barrier ribs 533 respectively on the second barrier ribs 534 along its length
Second bayonet socket 5342.Second bayonet socket 5342 is welded together after engaging with the first bayonet socket 5332, it is fixed after the first barrier ribs 533,
Second barrier ribs 534 edge corresponding with the end face in anti-foreign matter hole 531 is mutually concordant, will not produce influence to profile.
Further, be also distributed with orifice plate 52 for guide pipe 6 install mounting hole 521, anti-foreign matter plate 53 be provided with
The corresponding avoidance hole 535 of mounting hole 521, it is to avoid the installation to guide pipe 6 is impacted.
In certain embodiments, anti-foreign matter component includes the anti-foreign matter plate 53 of two or more being stacked, respectively
Anti- foreign matter plate 53 is shifted to install in the circumferential, and the anti-position of foreign matter hole 531 of each anti-foreign matter plate 53 is corresponding.Both cooling can be ensured
Liquid is by anti-foreign matter hole 531, it is also ensured that foreign matter A negotiable area is more small in the axial direction, prevents foreign matter A from passing through.
In other embodiments, at least one side in first isolated border 5331 in anti-foreign matter hole 531, the second isolated border 5341
Be non-straight edges, can to reduce anti-foreign matter hole 531 after the anti-internal projection of foreign matter hole 531 can be by the ability of foreign matter A.
Preferably, in first isolated border 5331 in anti-foreign matter hole 531, the second isolated border 5341 at least while to corresponding
The anti-internal projection of foreign matter hole 531, reduces the ability that anti-foreign matter hole 531 can pass through foreign matter A.
Bent to one side of the anti-internal projection of foreign matter hole 531 in first isolated border 5331, the second isolated border 5341 and set, also may be used
For, bent to one side of the anti-internal projection of foreign matter hole 531 in the first isolated border 5331, the second isolated border 5341 and set, or, while
Bend and bend in anti-foreign matter hole 531.
It is to be appreciated that above-mentioned each technical characteristic can be used in any combination and unrestricted.
Embodiments of the invention are the foregoing is only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (15)
1. a kind of anti-foreign matter component for being applied to base, the base includes orifice plate（52）, the orifice plate（52）It is provided with cooling
But the opening that agent is circulated（522）, it is characterised in that
The anti-foreign matter component includes anti-foreign matter plate（53）, the anti-foreign matter plate（53）It is provided with some anti-foreign matter holes run through
（531）, the anti-foreign matter hole（531）Be non-square structure, and with the opening（522）Position correspondence.
2. anti-foreign matter component according to claim 1, it is characterised in that the anti-foreign matter hole（531）Including two first every
From side（5331）With two second isolated borders（5341）；
First isolated border described in two（5331）Set in the first direction and be located at the anti-foreign matter hole respectively（531）It is two relative
Side,
Second isolated border described in two（5341）Set in a second direction and be located at the anti-foreign matter hole respectively（531）It is two relative
Side；
First isolated border（5331）With second isolated border（5341）Inclined angle is set.
3. anti-foreign matter component according to claim 2, it is characterised in that two relative first isolated borders（5331）With
Two relative second isolated borders（5341）Enclose anti-foreign matter hole described in shape（531）.
4. anti-foreign matter component according to claim 3, it is characterised in that the anti-foreign matter plate（53）Including the first framework
（532）And it is connected to first framework（532）Inside casing between some first barrier ribs（533）With some second isolation
Rib（534）；
Some first barrier ribs（533）Set along the first direction, and mutually spacing side by side, some second isolation
Rib（534）Set along the second direction, and mutually spacing side by side；
First barrier ribs（533）, the second barrier ribs（534）Direction it is different, it is arranged in a crossed manner to form some anti-foreign matters
Hole（531）；
Second barrier ribs（534）By first barrier ribs（533）Segmentation is shaped as the anti-foreign matter hole（531）It is some
First isolated border（5331）, first barrier ribs（533）By second barrier ribs（534）Segmentation is shaped as the anti-foreign matter
Hole（531）The second isolated border（5341）.
5. the anti-foreign matter component according to any one of Claims 1-4, it is characterised in that the anti-foreign matter hole（531）Institute
State the first isolated border（5331）, second isolated border（5341）In at least while be non-straight edges.
6. anti-foreign matter component according to claim 5, it is characterised in that the anti-foreign matter hole（531）Described first every
From side（5331）, second isolated border（5341）In at least while to the corresponding anti-foreign matter hole（531）Internal projection.
7. anti-foreign matter component according to claim 6, it is characterised in that first isolated border（5331）, described second
Isolated border（5341）It is middle to the anti-foreign matter hole（531）One side bending of internal projection is set；And/or, first isolated border
（5331）, second isolated border（5341）It is middle to the anti-foreign matter hole（531）One side bending of internal projection is set.
8. anti-foreign matter component according to claim 4, it is characterised in that first barrier ribs（533）Undulate is horizontal
Set to bending, second barrier ribs（534）With first barrier ribs（533）Intersect, by first barrier ribs（533）
Segmentation is formed to the anti-foreign matter hole（531）First isolated border of internal projection（5331）.
9. anti-foreign matter component according to claim 8, it is characterised in that corrugated first barrier ribs（533）Shape
Into be arranged alternately in the longitudinal direction and setting of arching upward to horizontal two opposite sides respectively crest, trough, each second isolation
Rib（534）Along orientation alternately with first barrier ribs（533）Crest, trough connection, and same described second every
From rib（534）With each first barrier ribs（533）Crest or trough connection.
10. anti-foreign matter component according to claim 9, it is characterised in that first barrier ribs（533）Crest, ripple
Paddy position is respectively equipped with the first bayonet socket（5332）, second barrier ribs（534）On be provided with described with each respectively along its length
First barrier ribs（533）On the first bayonet socket（5332）Second bayonet socket of engaging（5342）.
The 11. anti-foreign matter component according to claim 4,8 to 10 any one, it is characterised in that first barrier ribs
（533）, the second barrier ribs（534）Banding, and width are along the anti-foreign matter hole（531）It is axially arranged.
The 12. anti-foreign matter component according to Claims 1-4,8 to 10 any one, it is characterised in that the orifice plate（52）On
Also it is distributed with and supplies guide pipe（6）The mounting hole of installation（521）, the anti-foreign matter plate（53）It is provided with and the mounting hole（521）
Corresponding first avoids hole（535）.
The 13. anti-foreign matter component according to Claims 1-4,8 to 10 any one, it is characterised in that the anti-foreign matter component
At least two anti-foreign matter plates including being stacked（53）, each anti-foreign matter plate（53）Shift to install in the circumferential, and each institute
State anti-foreign matter plate（53）Anti- foreign matter hole（531）Position correspondence.
A kind of 14. bases, including orifice plate（52）, the orifice plate（52）It is provided with the opening for cooling agent circulation（522）, it is special
Levy and be, also including the anti-foreign matter component described in any one of claim 1 to 13, the anti-foreign matter component is arranged at the orifice plate
（52）Upside or downside.
15. a kind of fuel assemblies, it is characterised in that including the base described in claim 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611094689.4A CN106782683B (en) | 2016-11-30 | 2016-11-30 | Fuel assembly and its tube socket and the anti-foreign matter component applied to tube socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611094689.4A CN106782683B (en) | 2016-11-30 | 2016-11-30 | Fuel assembly and its tube socket and the anti-foreign matter component applied to tube socket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106782683A true CN106782683A (en) | 2017-05-31 |
| CN106782683B CN106782683B (en) | 2018-06-19 |
Family
ID=58883677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611094689.4A Active CN106782683B (en) | 2016-11-30 | 2016-11-30 | Fuel assembly and its tube socket and the anti-foreign matter component applied to tube socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106782683B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113362976A (en) * | 2021-06-04 | 2021-09-07 | 中国核动力研究设计院 | Efficient filtering lower pipe seat, fuel assembly and nuclear reactor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09101385A (en) * | 1995-10-02 | 1997-04-15 | Nuclear Fuel Ind Ltd | Lower nozzle of pwr fuel assembly |
| US20030016776A1 (en) * | 2001-07-17 | 2003-01-23 | Smith Michael G. | Reduced pressure drop debris filter bottom nozzle for a fuel assembly of a nuclear reactor |
| CN102651242A (en) * | 2012-05-14 | 2012-08-29 | 中科华核电技术研究院有限公司 | Anti-foreign matter plate of light water reactor nuclear fuel component and bottom device |
| CN202650558U (en) * | 2012-07-19 | 2013-01-02 | 中国核动力研究设计院 | Nuclear fuel component lower tube base filter plate convenient to process |
| CN103021477A (en) * | 2012-11-26 | 2013-04-03 | 中国核动力研究设计院 | Lower pipe base of reactor fuel assembly |
| CN202887743U (en) * | 2012-11-26 | 2013-04-17 | 中国核动力研究设计院 | Lower tube seat of reactor fuel component |
| 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 |
| CN103337262A (en) * | 2013-06-18 | 2013-10-02 | 中国核动力研究设计院 | A kind of bottom nozzle with filtration foreign matter function |
-
2016
- 2016-11-30 CN CN201611094689.4A patent/CN106782683B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09101385A (en) * | 1995-10-02 | 1997-04-15 | Nuclear Fuel Ind Ltd | Lower nozzle of pwr fuel assembly |
| US20030016776A1 (en) * | 2001-07-17 | 2003-01-23 | Smith Michael G. | Reduced pressure drop debris filter bottom nozzle for a fuel assembly of a nuclear reactor |
| 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 |
| CN102651242A (en) * | 2012-05-14 | 2012-08-29 | 中科华核电技术研究院有限公司 | Anti-foreign matter plate of light water reactor nuclear fuel component and bottom device |
| CN202650558U (en) * | 2012-07-19 | 2013-01-02 | 中国核动力研究设计院 | Nuclear fuel component lower tube base filter plate convenient to process |
| CN103021477A (en) * | 2012-11-26 | 2013-04-03 | 中国核动力研究设计院 | Lower pipe base of reactor fuel assembly |
| CN202887743U (en) * | 2012-11-26 | 2013-04-17 | 中国核动力研究设计院 | Lower tube seat of reactor fuel component |
| CN103337262A (en) * | 2013-06-18 | 2013-10-02 | 中国核动力研究设计院 | A kind of bottom nozzle with filtration foreign matter function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113362976A (en) * | 2021-06-04 | 2021-09-07 | 中国核动力研究设计院 | Efficient filtering lower pipe seat, fuel assembly and nuclear reactor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106782683B (en) | 2018-06-19 |
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