CN206271425U - A kind of grid spacer band spring of Bidirectional supporting - Google Patents
A kind of grid spacer band spring of Bidirectional supporting Download PDFInfo
- Publication number
- CN206271425U CN206271425U CN201621169182.6U CN201621169182U CN206271425U CN 206271425 U CN206271425 U CN 206271425U CN 201621169182 U CN201621169182 U CN 201621169182U CN 206271425 U CN206271425 U CN 206271425U
- Authority
- CN
- China
- Prior art keywords
- band
- arch
- supporting
- spring
- grid spacer
- 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.)
- Expired - Fee Related
Links
- 125000006850 spacer group Chemical group 0.000 title claims abstract description 32
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 20
- 239000000446 fuel Substances 0.000 claims abstract description 26
- 239000000956 alloy Substances 0.000 claims abstract description 10
- 229910000679 solder Inorganic materials 0.000 claims description 11
- 235000014676 Phragmites communis Nutrition 0.000 claims description 3
- 241000700608 Sagitta Species 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 6
- 229920003266 Leaf® Polymers 0.000 description 27
- 239000000463 material Substances 0.000 description 4
- 229910001093 Zr alloy Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000000034 method Methods 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 utility model belongs to PWR fuel assembly design field, the grid spacer band spring of specifically related to a kind of Bidirectional supporting, clamped for the fuel rod to PWR fuel assembly, fixed, including band and being arranged on the spring leaf for nickel-base alloy material that the bar takes, wherein, the spring leaf is W types, is located in the bar and takes, and one and two supporting arch for fixing the fuel rod is respectively constituted in the band both sides.Spring leaf quantity required for clamping fuel rod in reducing grid spacer compared with existing band spring, reduce the usage amount of nickel-base alloy, neutron economy in lifting reactor, while increasing the flow area in grid spacer, lifts the thermal-hydraulic efficiency of reactor.
Description
Technical field
The utility model belongs to PWR fuel assembly design field, and in particular to a kind of grid spacer bar of Bidirectional supporting
Band spring.
Background technology
The grid spacer of PWR fuel assembly plays a part of fixed, clamping fuel rod, and wherein band spring is positioning
The important component of screen work clamping device.Using Zirconium alloy material as stripping, nickel-base alloy as the double golden of spring material
Category grid spacer has a wide range of applications in reactor, and the fuel assembly that domestic existing compacted clay liners are loaded just makes
With the grid spacer of this type.Accompanying drawing 1 show a kind of existing band spring design for grid spacer, and it uses double bullets
Reed realizes the support of both sides fuel rod.
Nickel-base alloy has the advantages of intensity is high, and Irradiation slack is small, but its neutron absorption cross-section as band spring material
It is larger, influence the utilization rate of neutron.Therefore, on the premise of grid spacer function needs and security is met, Ni-based conjunction is reduced
The consumption of gold, is conducive to improving the economy of neutron.On the other hand, the flow area influence Flow Resistant Coefficient of grid spacer,
Increase the thermal-hydraulic efficiency that flow area is conducive to being lifted reactor.
Utility model content
The purpose of this utility model is to provide a kind of grid spacer band spring of Bidirectional supporting.The band spring is enough reduced
The quantity of spring, so as to reduce the consumption of nickel-base alloy in spring, improves the economy of neutron and improves thermal technology's water of reactor
Force efficiency.
To achieve the above objectives, the technical solution adopted in the utility model is：A kind of grid spacer band of Bidirectional supporting
Spring, is clamped, fixed for the fuel rod to PWR fuel assembly, including band and is arranged on the bar takes one
The spring leaf of root nickel-base alloy material, wherein, the spring leaf is W types, is located in the bar and takes, in the band both sides point
Gou Cheng not one and two supporting arch for fixing the fuel rod of the band both sides.
Further, the supporting arch is included positioned at band middle part, to second protruded outside the band side
Support arch, also the first supporting arch, the 3rd including being protruded outside lower edges, the opposite side to the band of the band
Supporting arch.
Further, first supporting arch, the second supporting arch, the 3rd supporting arch sagitta it is consistent.
Further, taken at described article and be respectively equipped with the first perforate and the 3rd perforate near the position of lower edges, in institute
State and be provided with the middle part of band the second perforate.
Further, second supporting arch is passed through from second perforate, is protruded to outside the band side；Institute
The first supporting arch, the 3rd supporting arch is stated to be located at respectively between first perforate, the second perforate and second perforate, the 3rd
Between perforate, protruded to outside the band opposite side.
Further, the upper and lower ends of the spring leaf are separately positioned on the lower edges of the band.
Further, the upper end of the spring leaf buckles the upper edge for being arranged on the band by double flat.
Further, the both sides of the upper end of the spring leaf and the upper edge of the band are respectively by the first solder joint, the
Two solder joints are welded and fixed, and the lower end of the spring leaf is welded and fixed with the one side of the lower edge of the band by the 3rd solder joint.
Further, between the upper end of the spring leaf and first supporting arch and in the lower end of the spring leaf
It is separately provided for providing first side arch, the second side in the Spring deformation space between the 3rd supporting arch
Arch；The first side arch, second side arch are equidirectional with second supporting arch, and the fuel rod is not contacted.
Further, the first side arch, second side arch are located in first perforate, the 3rd perforate respectively.
The beneficial effects of the utility model are：Reduce the bullet of the band spring required for clamping fuel rod in grid spacer
The quantity of reed, reduces the usage amount of nickel-base alloy, the neutron economy in lifting reactor, while in increasing grid spacer
Flow area, lifted reactor thermal-hydraulic efficiency.
Brief description of the drawings
Fig. 1 is the structure chart of existing spacer grid spring described in the utility model embodiment；
Fig. 2 is the A-A views of the grid spacer band spring of Bidirectional supporting described in the utility model embodiment；
Fig. 3 is the top view of the grid spacer band spring of Bidirectional supporting described in the utility model embodiment；
In figure：1- bands, 2- spring leafs, the perforates of 3- first, the perforates of 4- second, the perforates of 5- the 3rd, the supporting arch of 6- first, 7-
Second supporting arch, the supporting arch of 8- the 3rd, 9- first sides arch, 10- second sides arch, the solder joints of 11- first, the solder joints of 12- second,
The solder joints of 13- the 3rd.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and examples.
As shown in Figure 2 and Figure 3, a kind of grid spacer band spring of Bidirectional supporting, is arranged on the grid spacer of presurized water reactor
In, clamped for the fuel rod to PWR fuel assembly, fixed.The grid spacer band spring of Bidirectional supporting includes bar
With 1 and a spring leaf 2 being arranged on band 1.The material of spring leaf 2 is nickel-base alloy, and the material of band 1 is zircaloy.
Wherein, spring leaf 2 is W type structures, is located on band 1, and constituting three in the both sides of band 1 is used for fixed strip band 1
The supporting arch of the fuel rod of both sides, distribution mode is that have a supporting arch in the side of band 1, and opposite side has two supporting arch.
Three supporting arch are respectively to be located at the middle part of band 1（It is also the middle part of spring leaf 2）, to outside the side of band 1 protrude
The second supporting arch 7, and near band 1 lower edges（Also the upper and lower ends of spring leaf 2 are proximate to）, to the another of band 1
The first supporting arch 6, the 3rd supporting arch 8 protruded outside side.First supporting arch 6, the second supporting arch 7, the arch of the 3rd supporting arch 8
It is high consistent.
The first perforate 3 and the 3rd perforate 5 are respectively equipped near the position of lower edges on band 1, at the middle part of band 1
It is provided with the second perforate 4.
Second supporting arch 7 is passed through from the second perforate 4, is protruded to outside the side of band 1；First supporting arch the 6, the 3rd is supported
Arch 8 respectively be located between the first perforate 3, the second perforate 4 and between the second perforate 4, the 3rd perforate 5, to the opposite side of band 1 it
Outer protrusion.
The upper and lower ends of spring leaf 2 are respectively fixedly disposed at the lower edges of band 1.The upper end of spring leaf 2 is by bending
180 degree buckles the upper edge for being arranged on band 1.Welded by first respectively with the both sides of the upper edge of band 1 upper end of spring leaf 2
The 11, second solder joint 12 of point is welded and fixed, and the lower end of spring leaf 2 is welded with the one side of the lower edge of band 1 by the 3rd solder joint 13
It is fixed.Bent by the upper end of spring leaf 2 and buckled on band 1, and in the design that upper and lower ends are welded and fixed, spring leaf 2 is existed
In the case that bilateral fuel rod presses at the same time or separately, can keep firm.
Two side arches are additionally provided with the position near upper and lower ends of spring leaf 2, side is encircleed for providing spring leaf 2
Deformation space, wherein first side arch 9 is set between the upper end of spring leaf 2 and the first supporting arch 6, in the lower end of spring leaf 2
Second side arch 10 is set between the 3rd supporting arch 8；First side arch 9, second side arch 10 arches upward with second supporting arch 7
Direction is consistent, and first side arch 9, second side encircles 10 arch upward height of the height less than the second supporting arch 7 that arch upward, and does not contact
Fuel rod, is not used in the support of fuel rod.First side arch 9, second side arch 10 is respectively positioned at the first perforate 3, the 3rd perforate 5
In（Passed through from the first perforate 3, the 3rd perforate 5 respectively）.The design of two side arches can lift the overall normal direction of spring leaf 2 and cut
To deflection, improve the deformation space of spring leaf 2, solve the problems, such as that the deformation quantity of spring leaf 2 is not enough, can be fuel rod
Plug enough deformation space is provided.
Device described in the utility model is not limited to the embodiment described in specific embodiment, those skilled in the art
Other implementation methods are drawn according to the technical solution of the utility model, technological innovation scope of the present utility model is also belonged to.
Claims (10)
1. a kind of grid spacer band spring of Bidirectional supporting, is clamped for the fuel rod to PWR fuel assembly, is consolidated
It is fixed, including band (1) and a spring leaf for nickel-base alloy material (2) being arranged on the band (1), it is characterized in that：Institute
It is W types to state spring leaf (2), is located on the band (1), and respectively constituting one and two in the band (1) both sides is used for
The supporting arch of the fuel rod of fixation band (1) both sides.
2. the grid spacer band spring of Bidirectional supporting as claimed in claim 1, it is characterized in that：The supporting arch includes being located at
Band (1) middle part, the second supporting arch (7) to protrusion outside the band (1) side, also including near the band
(1) lower edges, the first supporting arch (6), the 3rd supporting arch (8) to protrusion outside the opposite side of the band (1).
3. the grid spacer band spring of Bidirectional supporting as claimed in claim 2, it is characterized in that：First supporting arch (6),
Second supporting arch (7), the 3rd supporting arch (8) sagitta it is consistent.
4. the grid spacer band spring of Bidirectional supporting as claimed in claim 2, it is characterized in that：Leaned on the band (1)
The position of nearly lower edges is respectively equipped with the first perforate (3) and the 3rd perforate (5), and second is provided with the middle part of the band (1)
Perforate (4).
5. the grid spacer band spring of Bidirectional supporting as claimed in claim 4, it is characterized in that：Second supporting arch (7)
Passed through from second perforate (4), protruded to outside the band (1) side；First supporting arch (6), the 3rd support
Arch (8) respectively be located between first perforate (3), the second perforate (4) and second perforate (4), the 3rd perforate (5) it
Between, protruded to outside the band (1) opposite side.
6. the grid spacer band spring of Bidirectional supporting as claimed in claim 1, it is characterized in that：The spring leaf (2) it is upper
Lower two ends are separately positioned on the lower edges of the band (1).
7. the grid spacer band spring of Bidirectional supporting as claimed in claim 6, it is characterized in that：The spring leaf (2) it is upper
Hold and the upper edge for being arranged on the band (1) is buckled by double flat.
8. the grid spacer band spring of Bidirectional supporting as claimed in claim 7, it is characterized in that：The spring leaf (2) it is upper
Hold and be welded and fixed by the first solder joint (11), the second solder joint (12) respectively with the both sides of the upper edge of the band (1), the bullet
The lower end of reed (2) is welded and fixed with the one side of the lower edge of the band (1) by the 3rd solder joint (13).
9. the grid spacer band spring of Bidirectional supporting as claimed in claim 4, it is characterized in that：In the spring leaf (2)
Between upper end and first supporting arch (6) and between the lower end of the spring leaf (2) and the 3rd supporting arch (8)
It is separately provided for providing first side arch (9), second side arch (10) of the spring leaf (2) deformation space；Described
One side arch (9), second side arch (10) are equidirectional with second supporting arch (7), and the fuel rod is not contacted.
10. the grid spacer band spring of Bidirectional supporting as claimed in claim 9, it is characterized in that：The first side arch
(9), second side arch (10) is located in first perforate (3), the 3rd perforate (5) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621169182.6U CN206271425U (en) | 2016-11-02 | 2016-11-02 | A kind of grid spacer band spring of Bidirectional supporting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621169182.6U CN206271425U (en) | 2016-11-02 | 2016-11-02 | A kind of grid spacer band spring of Bidirectional supporting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206271425U true CN206271425U (en) | 2017-06-20 |
Family
ID=59037963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621169182.6U Expired - Fee Related CN206271425U (en) | 2016-11-02 | 2016-11-02 | A kind of grid spacer band spring of Bidirectional supporting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206271425U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112697408A (en) * | 2020-12-09 | 2021-04-23 | 岭东核电有限公司 | Spring piece irradiation relaxation test clamping device for commercial reactor |
-
2016
- 2016-11-02 CN CN201621169182.6U patent/CN206271425U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112697408A (en) * | 2020-12-09 | 2021-04-23 | 岭东核电有限公司 | Spring piece irradiation relaxation test clamping device for commercial reactor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206907628U (en) | A kind of low temperature mute type transformer device structure | |
| CN103177776A (en) | Fuel assembly positioning grid capable of preventing fuel rod from being scratched and subjected to vibrating abrasion | |
| CN206452350U (en) | A kind of polysilicon solar cell | |
| CN106531230A (en) | High stability fuel assembly compacting system with variable rigidity and low radiation slack | |
| CN206271425U (en) | A kind of grid spacer band spring of Bidirectional supporting | |
| CN206464408U (en) | A kind of battery pole ear positional punch device | |
| CN206452335U (en) | One kind radiating solar cell template die | |
| CN203070778U (en) | Fuel component positioning grid for preventing fuel rod from being scratched and preventing vibration corrosion | |
| CN206619399U (en) | A kind of rigid support grid for fuel assembly bottom foreign body filtering | |
| CN206849503U (en) | A kind of nuclear fuel assembly, location grid and band | |
| CN208797079U (en) | A kind of fuel cell shockproof structure | |
| CN107230501A (en) | A kind of nuclear fuel assembly, location grid and band | |
| CN209571468U (en) | A kind of ternary lithium ion battery with shock resistance structure | |
| CN207303240U (en) | A kind of fuel cell being conveniently adjusted fixes structure | |
| CN205122366U (en) | Damping cushion of making an uproar falls in metallic glass transformer | |
| CN209515811U (en) | A kind of simple stop frame of lithium battery | |
| CN206971451U (en) | A kind of SMA mild steel composite buffers | |
| CN220653077U (en) | Generator base convenient to installation | |
| CN203456239U (en) | Multi-window type transformer iron core fixture | |
| CN211505751U (en) | Wind power plant power grid fault diagnosis device | |
| CN209571516U (en) | Battery structure with sheet NTC temperature sensor | |
| CN209418242U (en) | A kind of connection structure of assembly type dry-type transformer case | |
| CN209235832U (en) | A kind of compound bottom sheet structure of aluminum pot | |
| CN207458954U (en) | A kind of solar battery sheet of anti-bending | |
| CN207380309U (en) | A kind of fixed structure of display light guide plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170620 |