CN105551530B - A kind of fusion reactor tungsten Divertor structure based on high-temperature molten salt cooling - Google Patents
A kind of fusion reactor tungsten Divertor structure based on high-temperature molten salt cooling Download PDFInfo
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- CN105551530B CN105551530B CN201510932989.4A CN201510932989A CN105551530B CN 105551530 B CN105551530 B CN 105551530B CN 201510932989 A CN201510932989 A CN 201510932989A CN 105551530 B CN105551530 B CN 105551530B
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- tungsten
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- lanthanum alloy
- molten salt
- tungsten lanthanum
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21B—FUSION REACTORS
- G21B1/00—Thermonuclear fusion reactors
- G21B1/11—Details
- G21B1/13—First wall; Blanket; Divertor
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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
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- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
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Abstract
The invention discloses a kind of fusion reactor tungsten Divertor structure designs based on high-temperature molten salt cooling, and it is heat sink in face of plasma material and tungsten lanthanum alloy to include tungsten；Tungsten lanthanum alloy is heat sink including tungsten lanthanum alloy heat sink one and tungsten lanthanum alloy heat sink two, tungsten lanthanum alloy is heat sink one be C-shaped cross section semicanal, tungsten lanthanum alloy is heat sink two be half rectangular section with rounded corners semicanal, tungsten is connected in face of plasma material on tungsten lanthanum alloy heat sink one, and tungsten lanthanum alloy is heat sink one to be connected on tungsten lanthanum alloy heat sink two one homogeneous tube of composition.Effective combination that the present invention passes through two kinds of materials of tungsten and tungsten lanthanum alloy and high-temperature molten salt cooling agent, a kind of fusion reactor tungsten Divertor structure design based on high-temperature molten salt cooling proposed adapts to fusion reactor high throughput neutron irradiation environment, and thermal bearing capacity is up to 10 20MW/m2Stable state thermic load, structural material neutron activation degree is low, and the nuclear waste disposal after component is retired is relatively easy, and is conducive to improve fusion reactor economics of power generation.
Description
Technical field
The present invention relates to the divertor technical fields of nuclear fusion device, and in particular to a kind of based on the poly- of high-temperature molten salt cooling
Become the design of heap tungsten Divertor structure.
Background technology
One of the core component of divertor as nuclear fusion device carries and excludes high hot-fluid and grain from plasma
The function of subflow.In following fusion reactor, due to the running environment of high-throughput neutron irradiation and the requirement of economics of power generation, filter partially
Device is necessary：(1) 10MW/m is born2Above stable state thermic load, structural strength are high；(2) structural material neutron activation degree is low, with drop
Nuclear waste disposal difficulty after lower curtate part is retired；(3) cooling agent running temperature is as high as possible, to improve economics of power generation.
At present, advanced divertor technology the most ripe is tungsten copper divertor technology（Applied in EAST and ITER）.Tungsten
For copper divertor using pure tungsten as plasma facing material, which is also the preferred plasma facing material of fusion reactor.Pure tungsten is fabricated to outer
The tungsten block of square inner circle using one layer of oxygen-free copper as transition zone, is connected to the mode of hot isostatic pressing on the heat sink pipeline of chromium-zirconium-copper.Pipe
Water flowing cools down divertor component in road.Due to the high heat conductance and high mechanical properties of chromium-zirconium-copper material, feasible with engineering
Under the cooling water fluid parameter of property（Such as 100 DEG C of inlet temperature, flow velocity 10m/s）, divertor can bear 10-20MW/m2Heat bear
Lotus.Although tungsten copper divertor has the advantages that high thermal bearing capacity, it is only applicable to low neutron irradiation damage（I.e. low dpa）'s
Device, such as about 0.44dpa after the operation in 4 years of ITER divertors.In fusion reactor, the year neutron irradiation damage at divertor position
Estimation of measure grade is 50dpa, can cause copper material（Oxygen-free copper, chromium-zirconium-copper）A large amount of activation, after these components are retired, will become difficult to
The height of processing puts nuke rubbish.
In order to solve above-mentioned problem, there is scholar to propose using low activation steel as heat sink material, but the thermal conductivity of low activation steel
Rate is about 30W/ (mK), and thermal bearing capacity is caused to be less than 10MW/m2Thermic load.In addition, either use chromium-zirconium-copper or low work
Change steel as heat sink material, since material runs the limitation of warm area and water operating pressure, the maximum operating temperature of cooling water is 330
DEG C or so, this is unfavorable for the economy for improving fusion pile power generating.
American-European scholar also proposed the cold finger-type divertor design of helium, using mixed with La2O3（Proportion 1%）Tungsten lanthanum alloy make
For heat sink material, high flow rate（~200m/s）High temperature（600℃）Helium cooling-part in a manner of jet stream, meets 10MW/m2Heat
Bearing capacity requirement.But the cooling capacity and heat-carrying capacity due to helium are poor, the thermal bearing capacity of the structure is difficult to further carry
Height, while the structure design is extremely complex, and helium is extremely rare strategic resource, therefore, it is as fusion reactor divertor knot
The engineering feasibility that structure uses is poor.
Fused salt（Such as FLiBe）It can be run in large-scale high-temperature area（500-1000℃）, and energy is cooled down compared with helium
Power and heat-carrying capacity all greatly improve.Tungsten lanthanum alloy can be run as heat sink material in 600 DEG C or more high-temperature areas, and neutron
Activation grade is low.So the characteristics of making full use of pure tungsten and the hot operation ability of tungsten lanthanum alloy and low neutron activation degree, Yi Jirong
Hot operation ability, strong cooling capacity and the heat-carrying capacity of salt, divertor design are by plasma facing material, tungsten lanthanum alloy of pure tungsten
Heat sink material, fused salt are cooling agent, are well positioned to meet the requirement of fusion reactor.
The content of the invention
The defects of the object of the invention is exactly to make up prior art provides a kind of fusion reactor based on high-temperature molten salt cooling
Tungsten Divertor structure designs.
The present invention is achieved by the following technical solutions：
A kind of fusion reactor tungsten Divertor structure design based on high-temperature molten salt cooling, it is characterised in that：Include tungsten to face
Plasma material and tungsten lanthanum alloy are heat sink；It is heat sink including tungsten lanthanum alloy heat sink one and tungsten lanthanum alloy that the tungsten lanthanum alloy is heat sink
Two, tungsten lanthanum alloy is heat sink one be C-shaped cross section semicanal, tungsten lanthanum alloy is heat sink two be half rectangular section with rounded corners semicanal, tungsten
It is connected in face of plasma material on tungsten lanthanum alloy heat sink one, tungsten lanthanum alloy is heat sink one to be connected to structure on tungsten lanthanum alloy heat sink two
Into a homogeneous tube.
A kind of fusion reactor tungsten Divertor structure design based on high-temperature molten salt cooling, it is characterised in that：Described
High-temperature molten salt, 600-650 DEG C of temperature, flow velocity 8-20m/s, pressure 4-10MPa are connected in tungsten lanthanum alloy is heat sink.
A kind of fusion reactor tungsten Divertor structure design based on high-temperature molten salt cooling, it is characterised in that：Described
Tungsten is connected to by high temperature vacuum brazing on tungsten lanthanum alloy heat sink one in face of plasma material in the form of multiple fritters, tungsten lanthanum
Alloy is heat sink one to be connected to by high temperature vacuum brazing on tungsten lanthanum alloy heat sink two.
It is an advantage of the invention that：
The present invention take full advantage of the characteristics of pure tungsten and the hot operation ability of tungsten lanthanum alloy and low neutron activation degree and
Hot operation ability, strong cooling capacity and the heat-carrying capacity of fused salt adapt to fusion reactor high throughput neutron irradiation environment, heat carrying
Ability is up to 10-20MW/m2Stable state thermic load, the nuclear waste disposal after component is retired is relatively easy, and is conducive to improve fusion
Pile power generating economy.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the sectional view perpendicular to heat sink pipeline axial direction of structure of the present invention.
Specific embodiment
It further illustrates the present invention with reference to the accompanying drawings and detailed description.
As shown in figure 1 and 2, a kind of fusion reactor tungsten Divertor structure design based on high-temperature molten salt cooling, includes tungsten
In face of plasma material 1 and tungsten lanthanum alloy heat sink 2, tungsten lanthanum alloy is heat sink 2 to include tungsten lanthanum alloy heat sink 1 and tungsten lanthanum alloy heat
Heavy 24, tungsten lanthanum alloy is heat sink 1 be C-shaped cross section semicanal, it 24 is the half of half rectangular section with rounded corners that tungsten lanthanum alloy is heat sink
Pipe.Tungsten is connected to tungsten lanthanum alloy heat sink 1 in the form of multiple fritters in face of plasma material 1 by high temperature vacuum brazing
On, then again by tungsten lanthanum alloy heat sink 1 by high temperature vacuum brazing be connected on tungsten lanthanum alloy heat sink 24 form one it is whole
Pipe.Tungsten lanthanum alloy is heat sink to be connected with high-temperature molten salt 5 to cool down divertor, 600-650 DEG C of temperature, flow velocity 8-20m/s, pressure 4- in 2
10MPa forms a fusion reactor tungsten Divertor structure completely based on high-temperature molten salt cooling.
Claims (3)
1. a kind of fusion reactor tungsten Divertor structure based on high-temperature molten salt cooling, it is characterised in that：Include tungsten in face of plasma
Body material and tungsten lanthanum alloy are heat sink；The tungsten lanthanum alloy is heat sink including tungsten lanthanum alloy heat sink one and tungsten lanthanum alloy heat sink two, tungsten
Lanthanum alloy is heat sink one be C-shaped cross section semicanal, tungsten lanthanum alloy is heat sink two be half rectangular section with rounded corners semicanal, tungsten in face of etc.
Gas ions material is connected on tungsten lanthanum alloy heat sink one, tungsten lanthanum alloy is heat sink one be connected on tungsten lanthanum alloy heat sink two form one
Homogeneous tube；High-temperature molten salt is connected in the tungsten lanthanum alloy is heat sink.
2. a kind of fusion reactor tungsten Divertor structure based on high-temperature molten salt cooling according to claim 1, it is characterised in that：
The high-temperature molten salt, 600-650 DEG C of temperature, flow velocity 8-20m/s, pressure 4-10MPa.
3. a kind of fusion reactor tungsten Divertor structure based on high-temperature molten salt cooling according to claim 1, it is characterised in that：
The tungsten is connected to tungsten lanthanum alloy heat sink one in the form of multiple fritters in face of plasma material by high temperature vacuum brazing
On, tungsten lanthanum alloy is heat sink one to be connected to by high temperature vacuum brazing on tungsten lanthanum alloy heat sink two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510932989.4A CN105551530B (en) | 2015-12-11 | 2015-12-11 | A kind of fusion reactor tungsten Divertor structure based on high-temperature molten salt cooling |
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| CN201510932989.4A CN105551530B (en) | 2015-12-11 | 2015-12-11 | A kind of fusion reactor tungsten Divertor structure based on high-temperature molten salt cooling |
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| CN105551530A CN105551530A (en) | 2016-05-04 |
| CN105551530B true CN105551530B (en) | 2018-06-05 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107507651B (en) * | 2017-08-15 | 2019-05-31 | 中国科学院合肥物质科学研究院 | A kind of double cold loop Divertor structures suitable for Tokamak Fusion Reactor |
| CN109961854B (en) * | 2017-12-25 | 2020-11-13 | 哈尔滨工业大学 | Internal cooling channel of first wall of nuclear fusion based on jet cooling |
| CN108615563B (en) * | 2018-04-02 | 2020-05-22 | 西安交通大学 | Divertor water-cooling module of fusion device and divertor cooling target plate structure applied by divertor water-cooling module |
| CN109979609B (en) * | 2019-03-14 | 2021-04-23 | 中国科学院合肥物质科学研究院 | Fusion reactor divertor component with tritium resistance function |
| CN109887617B (en) * | 2019-03-20 | 2020-11-17 | 华中科技大学 | Finger-type helium cold divertor module and manufacturing method thereof |
| CN111477352B (en) * | 2020-04-22 | 2023-03-10 | 中国科学院合肥物质科学研究院 | U-shaped device for adjacent cooling channel of first wall of divertor of fusion device and assembly method thereof |
| CN112304586B (en) * | 2020-10-19 | 2023-03-14 | 中国科学院合肥物质科学研究院 | EAST divertor resistance characteristic test and purging efficiency test system and method |
| CN117038116B (en) * | 2023-09-25 | 2024-02-06 | 中国科学技术大学 | Anti-debonding divertor assembly based on tungsten and copper interface connection mode |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203760089U (en) * | 2014-02-08 | 2014-08-06 | 中国科学院等离子体物理研究所 | Flexible divertor integrated structure adapting to different plasma bit-types |
| CN203760088U (en) * | 2014-02-08 | 2014-08-06 | 中国科学院等离子体物理研究所 | First wall applied to snowflake divertor of fusion reactor |
| CN104616703A (en) * | 2015-01-05 | 2015-05-13 | 中国科学院等离子体物理研究所 | Flibe molten salt blanket structure for fusion reactor |
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2015
- 2015-12-11 CN CN201510932989.4A patent/CN105551530B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203760089U (en) * | 2014-02-08 | 2014-08-06 | 中国科学院等离子体物理研究所 | Flexible divertor integrated structure adapting to different plasma bit-types |
| CN203760088U (en) * | 2014-02-08 | 2014-08-06 | 中国科学院等离子体物理研究所 | First wall applied to snowflake divertor of fusion reactor |
| CN104616703A (en) * | 2015-01-05 | 2015-05-13 | 中国科学院等离子体物理研究所 | Flibe molten salt blanket structure for fusion reactor |
Non-Patent Citations (2)
| Title |
|---|
| CFETR偏滤器概念设计;卯鑫等;《原子能科学技术》;20150531;全文 * |
| Divertor conceptual designs for a fusion power plant;Prachai Norajitraa,et al;《Fusion Engineering and Design》;20080716;全文 * |
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