CN2914257Y - Installation structure of inner component of vacuum discharge chamber of superconducting tokamak device - Google Patents
Installation structure of inner component of vacuum discharge chamber of superconducting tokamak device Download PDFInfo
- Publication number
- CN2914257Y CN2914257Y CNU2006200717759U CN200620071775U CN2914257Y CN 2914257 Y CN2914257 Y CN 2914257Y CN U2006200717759 U CNU2006200717759 U CN U2006200717759U CN 200620071775 U CN200620071775 U CN 200620071775U CN 2914257 Y CN2914257 Y CN 2914257Y
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- Prior art keywords
- vacuum chamber
- tokamak device
- superconducting tokamak
- supporting leg
- utility
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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
- Y02E30/10—Nuclear fusion reactors
Abstract
The utility model discloses an arrangement structure of inner components of discharging vacuum chamber of superconducting Tokamak device, comprising a discharging vacuum chamber, each support of inner components of vacuum chamber is fixedly connected with the main body of the vacuum chamber though bolts, which is characterized in that: the solid lubrication material slices arranged on the interface can comparatively slide between the support leg and main body of the vacuum chamber. The utility model has been successfully operated in structure design of major scientific projects of state 'Ninth Five-Year Plan' - Vacuum Chamber Inner Components of EAST Superconducting Tokamak Device, which has achieved success and greatly reduced thermal stress.
Description
Technical field
The utility model belongs to a kind of superconducting tokamak device, specifically is a kind of mounting structure of superconducting tokamak device discharging vacuum chamber internal part.
Background technology
Controlled thermal nuclear-magnetism constraint fusion research is research field with ten minutes important meaning in the contemporary physicism, its target is to create the very high temperature condition suitable with the solar interior temperature on earth, utilize deuterium resource abundant in the seawater, carry out nuclear fusion reaction, discharge huge fusion energy, the new forms of energy of " inexhaustible " are provided for the mankind.Through 50 years of researches and exploration, when eliminating, closing or reducing other types magnetic confinement fusion experimental provision, worldwide magnetic trapped fusion apparatus focuses on the tokamak ring device gradually.Wherein discharging vacuum chamber is as one of critical component of tokamak device, the inside is equipped with internal parts such as divertor, limiter, its agent structure must meet the physical Design requirement, at first to adopt thin-wall construction to accelerate the rapid osmotic in magnetic field as far as possible, thereby be convenient to control the balance and the position shape of plasma, choose simultaneously resistivity height, no magnetic structure material that vacuum performance is good again, thereby guarantee that vacuum chamber has bigger resistance on hoop, the eddy current and the electronic load that on vacuum chamber and internal part, cause when reducing plasma generation and breaking.
Vacuum chamber is as thermonuclear fusion reaction ultrahigh vacuum operational site, before plasma operation in order to improve body vacuum tightness, obtain high-quality plasma running environment, must carry out 250 ℃ of wall baking processing, the internal vacuum chamber parts will be baked to about 350 ℃ simultaneously, remove the purpose that is adsorbed on impurity on the device surface to reach, so the internal vacuum chamber parts produce thermal stress owing to temperature distributing disproportionation is even, the heel of some supporting legs particularly, this thermal stress may reach appreciable numerical value sometimes, is enough to make structure to produce excessive plastic yield or fracture.For structural maintenance and make things convenient for commutativity, each supporting leg of internal vacuum chamber parts all is bolted to connection on the vacuum chamber body, but since the tokamak device vacuum chamber when operation body vacuum tightness 10
-4More than the Pa, the friction factor between stainless steel and the stainless steel is because huge clinging power effect, big about 10 times than in the physical environment, (friction factor in the physical environment between stainless steel and the stainless steel is 0.3, and 10
-4Friction factor is 3 in the Pa vacuum environment), adopt conventional common mounting hole design can not guarantee that relative slip between internal part and the vacuum chamber body is to reduce thermal stress like this.Up to the present all kinds of in the world tokamak devices all successfully do not address this problem, as the DIII-D tokamak device of USDOE all not from the structural design angle, just choose HIGH STRENGTH NON-MAGNETIC STAINLESS STEEL simply, but do the construction cost that has increased device greatly like this.
The utility model content
The purpose of this utility model provides a kind of mounting structure of superconducting tokamak device discharging vacuum chamber internal part, the utility model is considered from structure, proposed between stainless steel and stainless steel, to add a kind of no magnetic solid lubricant sheet method, guarantee that the tokamak device internal part can the excessive factor of overcome friction under ultra-high vacuum state, make heel that a slip relatively be arranged, thereby can reduce thermal stress greatly.
The technical solution of the utility model is as follows:
The mounting structure of superconducting tokamak device discharging vacuum chamber internal part, include discharging vacuum chamber, each supporting leg of internal vacuum chamber parts all is bolted to connection on the vacuum chamber body, and the solid lubricant sheet is installed at the interface place that it is characterized in that can sliding relatively between described supporting leg and the vacuum chamber body.
The screw that is used to install supporting leg on the described vacuum chamber body is a bar hole.
The solid lubricant sheet is the nonmagnetic metallic multilayer self-lubricating material of especial manufacture: be the multilayer self-lubricating composite that is made of magnetism-free stainless steel-Oilite bronze-metal surface, has the physical strength height, good heat conductivity, friction factor is little, anti-wear performance is good, can use in 400 degree temperature environments.The solid lubricant sheet is provided by the Lanzhou Chemistry and Physics Institute of the Chinese Academy of Sciences.
The screw that is used to install supporting leg on the described vacuum chamber body is a bar hole, guarantees that supporting leg can slide relatively.
Design philosophy of the present utility model successful operation at present is in country's " 95 " major scientific projects---on the structural design of EAST superconducting tokamak device internal vacuum chamber parts.Achieve success, greatly reduce thermal stress.
Description of drawings
Fig. 1 is the mounting structure synoptic diagram of supporting leg of the present utility model and vacuum chamber body.
Embodiment
Referring to accompanying drawing.
Between the supporting leg 2 of vacuum chamber inner body wall 1 and internal part, solid lubricant sheet 3 is installed.Internal part generally includes: divertor, limiter, tickler, passive feedback board.Through test, after adding solid lubricant sheet 3 between supporting leg 2 and the vacuum chamber inner body wall 1, maximum stress has only 157MPa,, be 842MPa if do not add solid lubricant maximum stress.
Claims (2)
1, the mounting structure of superconducting tokamak device discharging vacuum chamber internal part, include discharging vacuum chamber, each supporting leg of internal vacuum chamber parts all is bolted to connection on the vacuum chamber body, and the solid lubricant sheet is installed at the interface place that it is characterized in that can sliding relatively between described supporting leg and the vacuum chamber body.
2, mounting structure according to claim 1, the screw that it is characterized in that being used on the described vacuum chamber body installing supporting leg is a bar hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200717759U CN2914257Y (en) | 2006-05-18 | 2006-05-18 | Installation structure of inner component of vacuum discharge chamber of superconducting tokamak device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200717759U CN2914257Y (en) | 2006-05-18 | 2006-05-18 | Installation structure of inner component of vacuum discharge chamber of superconducting tokamak device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2914257Y true CN2914257Y (en) | 2007-06-20 |
Family
ID=38168855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200717759U Expired - Fee Related CN2914257Y (en) | 2006-05-18 | 2006-05-18 | Installation structure of inner component of vacuum discharge chamber of superconducting tokamak device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2914257Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163481A (en) * | 2011-02-16 | 2011-08-24 | 中国科学院等离子体物理研究所 | Supporting leg structure of superconducting Tokamak longitudinal field coil |
| CN102298976A (en) * | 2011-08-23 | 2011-12-28 | 中国科学院等离子体物理研究所 | Vacuum separation mechanism in superconducting feeder line system |
| CN110024045A (en) * | 2016-11-21 | 2019-07-16 | 俄罗斯联邦诺萨顿国家原子能公司 | Thermonuclear reaction device |
| CN111863289A (en) * | 2020-08-19 | 2020-10-30 | 核工业西南物理研究院 | Window protection device for observation window of tokamak device |
| CN114974617A (en) * | 2022-05-30 | 2022-08-30 | 中国科学院合肥物质科学研究院 | Vacuum chamber inner shell integrated structure suitable for nuclear fusion internal component connection |
-
2006
- 2006-05-18 CN CNU2006200717759U patent/CN2914257Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163481A (en) * | 2011-02-16 | 2011-08-24 | 中国科学院等离子体物理研究所 | Supporting leg structure of superconducting Tokamak longitudinal field coil |
| CN102163481B (en) * | 2011-02-16 | 2012-09-05 | 中国科学院等离子体物理研究所 | Supporting leg structure of superconducting Tokamak longitudinal field coil |
| CN102298976A (en) * | 2011-08-23 | 2011-12-28 | 中国科学院等离子体物理研究所 | Vacuum separation mechanism in superconducting feeder line system |
| CN102298976B (en) * | 2011-08-23 | 2013-11-20 | 中国科学院等离子体物理研究所 | Vacuum separation mechanism in superconducting feeder line system |
| CN110024045A (en) * | 2016-11-21 | 2019-07-16 | 俄罗斯联邦诺萨顿国家原子能公司 | Thermonuclear reaction device |
| CN110024045B (en) * | 2016-11-21 | 2021-10-08 | 俄罗斯联邦诺萨顿国家原子能公司 | Thermonuclear reactor |
| CN111863289A (en) * | 2020-08-19 | 2020-10-30 | 核工业西南物理研究院 | Window protection device for observation window of tokamak device |
| CN114974617A (en) * | 2022-05-30 | 2022-08-30 | 中国科学院合肥物质科学研究院 | Vacuum chamber inner shell integrated structure suitable for nuclear fusion internal component connection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |