CN103871486B - A kind of boot band structure limiting HTGR graphite core displacement structure - Google Patents
A kind of boot band structure limiting HTGR graphite core displacement structure Download PDFInfo
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- CN103871486B CN103871486B CN201410061017.8A CN201410061017A CN103871486B CN 103871486 B CN103871486 B CN 103871486B CN 201410061017 A CN201410061017 A CN 201410061017A CN 103871486 B CN103871486 B CN 103871486B
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- fan
- boot band
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- 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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Abstract
The invention provides a kind of boot band structure limiting HTGR graphite core displacement structure, use the low alloy material that can bear high temperature to make, and formed loop configuration by flexible connection each other by multiple fan-shaped hoop；Fan-shaped hoop one end is to connect boss, and the other end is connecting groove；Connect in boss and connecting groove and be provided with pin-and-hole, the described connection boss of one fan-shaped hoop is movably connected in the connecting groove of another adjacent fan-shaped hoop by pin, it is welded with multiple spacing cylinder on each fan-shaped boot band, can snap in semicircle fluting corresponding on the carbon brick of reactor core side, play position-limiting action.When every layer stack is folded, hoop upper limit cylinder interlaced arrangement, it is possible to preferably carry.The present invention has the features such as irradiation high temperature resistant, high pressure resistant, resistance to and length in service life, and flexible for installation, it is simple to manufactures, install and adjusts.
Description
Technical field
The present invention relates to a kind of novel boot band structure, it is adaptable to HTGR in-pile component technical field.
Background technology
In HTGR, graphite core structure be constitute HTGR core structure mainly comprise portion
Point, its overall integrity under seismic loading is to ensure that the fundamental requirement of each security function of high temperature nuclear reactor.
Different from conventional continuum (steel construction, concrete etc.) structure, graphite core structure is by graphite brick, carbon
The prose style free from parallelism structure of the component assemblies such as brick, in order to graphite core structure is avoided in high temperature, irradiation and earthquake etc.
Occurring excessive displacement to fall apart under load, this is accomplished by the side carbon brick appearance corresponding in reactor core active region
Face arranges boot band structure.Ball bed module HTGR (PBMR) hoop in such as South Africa in prior art
Band construction part have employed CFRC carbon fibre composite, and advantage is that resistance to elevated temperatures is good, and shortcoming is nothing
Enough irradiance data supportings, whole hoop intensity is good not as metal.The all-metal of Germany's HTGR
The material that support ring uses is 15Mo3, and advantage is that bearing capacity is strong, deficiency be overall structure for manufacturing,
Transport and installation are the most extremely difficult, the particularly welding of overall structure upper limit cylinder, it is difficult to ensure size essence
Degree.Japan's high temperature ETR Engineering Test Reactor (HTTR) its boot band structure have employed compression (SNB16 steel) and draws
Stretching (SUS316 steel) and limit flexible member (seeing patent documentation JP 2013-24619A), metal is high
Temperature creep causes stress relaxation.Its boot band structure of Britain's advanced person's HTGR (AGR) have employed metallic elastic
Element, supporting and damping are good, but complicated structure, hot conditions lower support characteristic deteriorate, with
Active time increase bearing performance to weaken.
Summary of the invention
For solving above technical problem, the invention provides a kind of restriction HTGR graphite core structure position
The boot band structure moved.This boot band structure also acts as simultaneously and compensates the gold caused due to the reason such as expand with heat and contract with cold
Belonging to the effect of position dimension change between in-pile component and reactor pressure vessel, this novel boot band structure has
There is irradiation high temperature resistant, resistance to, can hold that receipts certain pressure, diameter be big, length in service life, be easy to manufacture, install
With features such as adjustment.
Concrete, the invention provides a kind of boot band knot limiting HTGR graphite core displacement structure
Structure, it is characterised in that: use the low alloy material that can bear high temperature to make, and fanned by N number of boot band
Ring element forms loop configuration by flexible connection each other, and wherein N is more than or equal to 5.
Wherein, described boot band fan ring element includes a fan-shaped hoop and M spacing cylinder, wherein
M is 2-10；
The main body of described fan-shaped hoop is ring-type in fan, and one end is to connect boss, and the other end is connecting groove；
Connect and be provided with pin-and-hole in boss and connecting groove；Described between adjacent described boot band fan ring element
Flexible connection is to be flexibly connected by pin, and the described connection boss of a fan-shaped hoop passes through described pin
It is movably connected in the described connecting groove of another adjacent fan-shaped hoop；
The most also being evenly distributed with M spacing cylinder bayonet socket in described fan-shaped hoop, this bayonet socket cuts
Face semicircular in shape, described M spacing cylinder correspondence respectively is fixed in this M spacing cylinder bayonet socket.
Preferably, in described N number of boot band fan ring element, the central angle that all fan rings open is identical.
Preferably, in described N number of boot band fan ring element, N-1 is fanned the central angle that opens of ring is identical,
Have and only the fan central angle that opens of ring and other fan rings differ.
Additionally, be installed with locking steel wire in the bottom of described pin.
Optionally, described spacing cylinder uses the spacing cylinder card that argon arc welding is welded in described fan-shaped hoop
In mouthful.
Preferably, in such scheme, N is equal to 10, and M is equal to 3.
Optionally, the low alloy material bearing high temperature described in is low-alloy refractory Steel material.
Wherein, it is preferred that described fan-shaped hoop is made up of 12Cr2Mo1R Low-alloy heat-resistant steel plate, and
Described spacing cylinder and described pin are made up of 12Cr2Mo1 low-alloy refractory forged steel.Locking steel wire is
GH4169 nickel base superalloy steel wire.
Also disclose a kind of boot band assembly limiting HTGR graphite core displacement structure, comprise at least
Article 3, according to aforesaid any boot band structure, these at least 3 boot band structures are spaced one each other
Fixed height is arranged in layer, the wherein described spacing cylinder interlaced arrangement in every layer of boot band.
Also disclose a kind of HTGR graphite core, that includes according to any one restriction high temperature aforesaid
The boot band structure of HTGR graphite core displacement structure, or it is high temperature gas-cooled to include aforesaid a kind of restriction
The boot band assembly of heap graphite stack cored structure displacement, wherein the peripheral structure of this reactor core is carbon brick, at corresponding carbon
Have the bayonet socket of cross section semicircular in shape on brick, be used for receiving described spacing cylinder.
It is long that boot band structure in the HTGR of the present invention has service life, according to design displacement and institute
The design transient of row boot band construction package carries out analysis of Fatigue-life, and result proves the designed banding manufactured
Band structure assembly disclosure satisfy that the requirement of various transient conditions in the phase in reactor longevity, it is possible to reaches 40 years anti-
Answer the phase requirement of heap longevity, without maintenance and replacing in 40 years.
Accompanying drawing explanation
Fig. 1 is this boot band structural representation；
Fig. 2 is spacing cylinder close-up schematic view；
Fig. 3 is fan-shaped hoop junction partial schematic diagram；
Wherein, 1-sector hoop；The spacing cylinder of 2-；3-connecting pin；4-connects boss；5-connecting groove；
6-locking steel wire；The upper carbon brick of 7-；Carbon brick under 8-.
Detailed description of the invention
See Fig. 1, the invention provides a kind of boot band limiting HTGR graphite core displacement structure
Structure, it is used for limiting graphite core structure, under the load such as high temperature, irradiation and earthquake, excessive displacement occurs
And fall apart.Its structure uses the low alloy material that can bear high temperature to make.Typically, a boot band is in work
Make to bear about 132 ton forces under 250 degree of environment of temperature, be equivalent to bear graphite-structure inside and outside pressure
Difference about 66kPa.
The big innovation of the one of the present invention is the structure design of this boot band.
As it is shown in figure 1, this boot band is fanned ring elements each other by flexible connection by 10 boot bands
Circularize structure, be wound on outward outside graphite core structure.In addition to boot band structure, this graphite core is tied
Structure 7 further comprises carbon brick 8 and lower carbon brick 9；Wherein, boot band structure use 10 fan-shaped hoop 1,
30 spacing cylinders 2 and 10 connecting pins 3.
Typically, a HTGR includes comprising 30 layers of boot band structure, wherein, every layer of hoop
Tight ring upper limit cylinder interlaced arrangement, it is possible to preferably carry.
For the convenience of processing, whole 10 fan-shaped hoop 1 can be duplicate, its central angle phase
With, but mean that the requirement to machining accuracy is the highest.Take into account be easy to assemble and be easy to processing of both because of
Element, can be designed as size by 9 in 10 fan-shaped hoop duplicate, and have the size of 1
Different with other, do regulation and be used.
Seeing Fig. 2, described fan-shaped hoop has been evenly arranged 3 spacing cylinders 2, spacing cylinder 2 is solid
On being scheduled in the spacing cylinder bayonet socket of fan-shaped hoop 1, argon arc welding specifically can be used to weld.This is spacing
The cross section of cylinder bayonet socket cross section and spacing cylinder adapts, specifically semicircle.In reactor core side, spacing
It is in semicircular fluting that cylinder 2 can snap in cross section corresponding on carbon brick 8 and lower carbon brick 9, thus complete
Become position-limiting action.
Referring specifically to Fig. 3, a fan-shaped hoop is designed with connection boss 4, connecting groove 5 two ends,
The boss 4 that connects of one fan-shaped hoop 1 is connected to the connecting groove 5 of another fan-shaped hoop 1, even
Connect and all have pin-and-hole in boss 4, connecting groove 5 for through connecting pin 3, complete company therebetween
Connect.The bottom of connecting pin 3 is installed with locking steel wire 6, and locking steel wire 6 is possible to prevent connecting pin 3 dynamic
Get loose under load landing.By parity of reasoning, and 10 fan-shaped hoop 1 just connect into boot band structure.
It will be understood by those skilled in the art that the number above with respect to component, such as the number of fan-shaped hoop 1,
Spacing cylinder 2 and the number of connecting pin 3, above numeral is only an example, and non-limiting
, those skilled in the art have motivation to select suitably numeral according to the size of actual reactor core.
Another big innovation of the present invention is the material selection of this boot band, consider mechanical strength,
The factors such as radiation-resistant property, process ease, calculate through a large amount of creative theoretical modelings,
The work such as experimental analysis detection, inventor finally determines and have chosen the low alloy material that can bear high temperature, tool
Body can be low-alloy refractory Steel material.Wherein preferred, fan-shaped hoop 1 is by the low conjunction of 12Cr2Mo1R
Gold heat-resisting steel sheet and plate is made, and spacing cylinder 2 and pin 3 are made up of 12Cr2Mo1 low-alloy refractory forged steel.
Locking steel wire uses GH4169 nickel base superalloy steel wire.
The novel boot band structure that the core structure in reactor that the present invention provides is fixed is divided according to material
Analysis shows: this novel boot band structure maximum operation (service) temperature can reach 500 DEG C；Stretched test,
Impact test, drop weight test and fatigue behaviour inspection: novel boot band structure can be held within the phase in reactor longevity
By various design transients；Additionally, through analysis of Fatigue-life, the boot band assembly of designed manufacture can be expired
The requirement of various transient conditions in the foot phase in reactor longevity.The projected life of this boot band structure can reach 40
Year.
Claims (11)
1. the boot band structure limiting HTGR graphite core displacement structure, it is characterised in that: adopt
Make with the low alloy material that can bear high temperature, and by N number of boot band fan ring element each other by living
Being dynamically connected and form loop configuration, wherein N is more than or equal to 5；
Described boot band fan ring element includes a fan-shaped hoop and M spacing cylinder, and wherein M is
2-10；
The main body of described fan-shaped hoop is ring-type in fan, and one end is to connect boss, and the other end is connecting groove；
Connect and be provided with pin-and-hole in boss and connecting groove；Described between adjacent described boot band fan ring element
Flexible connection is to be flexibly connected by pin, and the described connection boss of a fan-shaped hoop passes through described pin
It is movably connected in the described connecting groove of another adjacent fan-shaped hoop；
Described fan-shaped hoop is the most also evenly distributed with M spacing cylinder bayonet socket, this bayonet socket cross section
Semicircular in shape, described M spacing cylinder correspondence respectively is fixed in this M spacing cylinder bayonet socket.
A kind of banding limiting HTGR graphite core displacement structure the most according to claim 1
Band structure, it is characterised in that in described N number of boot band fan ring element, the central angle that all fan rings open is
Identical.
A kind of banding limiting HTGR graphite core displacement structure the most according to claim 1
Band structure, it is characterised in that in described N number of boot band fan ring element, the central angle that N-1 fan ring opens
It is identical, has and only the fan central angle that opens of ring and other fan rings differ.
A kind of banding limiting HTGR graphite core displacement structure the most according to claim 1
Band structure, it is characterised in that be installed with locking steel wire in the bottom of described pin.
A kind of banding limiting HTGR graphite core displacement structure the most according to claim 1
Band structure, it is characterised in that described spacing cylinder uses the limit that argon arc welding is welded in described fan-shaped hoop
In circle of position post bayonet socket.
A kind of banding limiting HTGR graphite core displacement structure the most according to claim 1
Band structure, wherein N is equal to 10, and M is equal to 3.
A kind of banding limiting HTGR graphite core displacement structure the most according to claim 1
Band structure, the wherein said low alloy material bearing high temperature is low-alloy refractory Steel material.
A kind of banding limiting HTGR graphite core displacement structure the most according to claim 1
Band structure, it is characterised in that: described fan-shaped hoop is made up of 12Cr2Mo1R Low-alloy heat-resistant steel plate,
And described spacing cylinder and described pin are made up of 12Cr2Mo1 low-alloy refractory forged steel.
A kind of banding limiting HTGR graphite core displacement structure the most according to claim 4
Band structure, it is characterised in that: described locking steel wire is GH4169 nickel base superalloy steel wire.
10. limit a boot band assembly for HTGR graphite core displacement structure, comprise at least 3
Boot band structure according to one of aforementioned claim, these at least 3 boot band structures are spaced one each other
Fixed height is arranged in layer, it is characterised in that the described spacing cylinder interlaced arrangement in every layer of boot band.
11. 1 kinds of HTGR graphite cores, that includes according to one of claim 1-9 Suo Shu
Plant the boot band structure limiting HTGR graphite core displacement structure, or include claim 10
Described a kind of boot band assembly limiting HTGR graphite core displacement structure, it is characterised in that:
The peripheral structure of this reactor core is carbon brick, has the bayonet socket of cross section semicircular in shape, be used on corresponding carbon brick
Receive described spacing cylinder.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410061017.8A CN103871486B (en) | 2014-02-24 | 2014-02-24 | A kind of boot band structure limiting HTGR graphite core displacement structure |
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| CN201410061017.8A CN103871486B (en) | 2014-02-24 | 2014-02-24 | A kind of boot band structure limiting HTGR graphite core displacement structure |
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| CN103871486A CN103871486A (en) | 2014-06-18 |
| CN103871486B true CN103871486B (en) | 2016-08-17 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448751B (en) * | 2016-07-12 | 2018-02-13 | 华能山东石岛湾核电有限公司 | A kind of HTGR metal in-pile component reactor core shell supporting structure and installation method |
| CN108507549B (en) * | 2018-05-28 | 2020-07-28 | 中国核工业二三建设有限公司 | Method for installing and measuring graphite bricks and carbon bricks in high-temperature gas cooled reactor |
| CN108806805B (en) * | 2018-06-06 | 2020-03-27 | 中国科学院上海应用物理研究所 | Pool type molten salt reactor and operation method thereof |
| CN112820430B (en) * | 2019-11-18 | 2024-05-14 | 中国核工业二三建设有限公司 | Method for installing and building graphite and carbon internal components of high-temperature gas cooled reactor and installation trolley |
| CN111370146B (en) * | 2020-03-17 | 2021-11-23 | 中国核动力研究设计院 | Reactor structure suitable for spherical fuel and high-temperature coolant |
| CN111341467B (en) * | 2020-03-17 | 2021-10-22 | 中国核动力研究设计院 | Metal reactor internal member suitable for spherical fuel and high-temperature coolant |
| CN115045434B (en) * | 2022-06-27 | 2023-08-25 | 华能山东石岛湾核电有限公司 | Modularized construction device and method for ceramic in-pile components of high-temperature gas cooled reactor |
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| GB1030272A (en) * | 1963-03-02 | 1966-05-18 | Siemens Ag | A process for the production of a prestressed concrete pressure vessel for a nuclear reactor |
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| JP5772327B2 (en) * | 2011-07-19 | 2015-09-02 | 富士電機株式会社 | HTGR core restraint mechanism |
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2014
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|---|---|---|---|---|
| GB1030272A (en) * | 1963-03-02 | 1966-05-18 | Siemens Ag | A process for the production of a prestressed concrete pressure vessel for a nuclear reactor |
| WO2002061761A1 (en) * | 2001-02-01 | 2002-08-08 | Forschungszentrum Jülich GmbH | Reflector block for a high temperature reactor |
Non-Patent Citations (2)
| Title |
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| 高温气冷堆核电站金属堆内构件锻件材料12Cr2Mo1落锤试验研究;郭平 等;《大型铸锻件》;20110525(第3期);论文第1-2段 * |
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