CN113936815A - Toroidal field coil and fusion device - Google Patents
Toroidal field coil and fusion device Download PDFInfo
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- CN113936815A CN113936815A CN202010675168.8A CN202010675168A CN113936815A CN 113936815 A CN113936815 A CN 113936815A CN 202010675168 A CN202010675168 A CN 202010675168A CN 113936815 A CN113936815 A CN 113936815A
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- central column
- field coil
- arm
- outer arm
- center post
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- 230000004927 fusion Effects 0.000 title claims abstract description 11
- 239000004020 conductor Substances 0.000 claims abstract description 63
- 239000000463 material Substances 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- PPEKGEBBBBNZKS-HGRQIUPRSA-N neosaxitoxin Chemical compound N=C1N(O)[C@@H](COC(=O)N)[C@@H]2NC(=N)N[C@@]22C(O)(O)CCN21 PPEKGEBBBBNZKS-HGRQIUPRSA-N 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21B—FUSION REACTORS
- G21B1/00—Thermonuclear fusion reactors
- G21B1/05—Thermonuclear fusion reactors with magnetic or electric plasma confinement
- G21B1/057—Tokamaks
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21B—FUSION REACTORS
- G21B1/00—Thermonuclear fusion reactors
- G21B1/11—Details
-
- 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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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Particle Accelerators (AREA)
- Plasma Technology (AREA)
Abstract
The application provides a toroidal field coil and a fusion device, wherein the toroidal field coil comprises a central column and a plurality of outer arm magnets connected with the central column, the central column comprises a plurality of central column conductors, and the number of the central column conductors is the same as that of the outer arm magnets; one end of each outer arm magnet is connected with one end of one central column conductor, and the other end of each outer arm magnet is connected with the other end of the adjacent central column conductor through a connecting piece, so that the outer arm magnets are connected in series through the central column conductors. The toroidal field coil of this application embodiment can realize the series connection of each circle of adjacent coil in the time, avoids the interference to plasma control.
Description
Technical Field
The application belongs to the technical field of plasma confinement, and particularly relates to a toroidal field coil and a fusion device.
Background
The spherical tokamak has its central circular hole made very small due to the proximity of the plasma torus size radius. In this bore, in addition to accommodating the vacuum chamber walls, toroidal field coils are passed. Based on this feature, the magnetic field coil of the spherical tokamak is different from the conventional tokamak. The magnetic field coil of the spherical Tokamak consists of a central column and an outer arm magnet. Its toroidal field coil's structure is very compact, and is stricter to the mechanism's requirement of converging of electric current, if: compact size, reliable structure, insulation safety and the like.
The spherical tokamak devices which are built in the world at present mainly comprise: MAST, NSTX, START, etc., in British, United states, Japan, etc. In these projects, the structures of the toroidal field magnets are different, and the collecting devices of the coil currents are also different. Typically, in a mask spherical tokamak mechanism, the toroidal field coil has 24 turns, and the current of each turn is collected by a central column and is connected in series in a bottom ring structure.
The structure can design the positive and negative connecting wires of the circumferential field coil power supply as one part. The complexity of the power supply lead connection is reduced, and the space of the device is saved. Without this series configuration, the toroidal field coil would require multiple leads to connect to a power source, increasing the complexity of the device.
However, the structure as described above generates an additional poloidal magnetic field, resulting in an error in the magnetic field of the spherical tokamak apparatus. Simultaneously, the loop configuration of bottom can increase the overall length of toroidal field coil, and increases the attach fitting of more different copper conductor parts, increases toroidal field coil's resistance value and the rising of required power, increases the cost of device.
Disclosure of Invention
The utility model provides an aim at provides a toroidal field coil and fusion device, when can realizing the series connection of each circle of adjacent coil, avoids the interference to plasma control.
On one hand, the embodiment of the application provides a toroidal field coil, which comprises a central column and a plurality of outer arm magnets connected with the central column, wherein the central column comprises a plurality of central column conductors, and the number of the central column conductors is the same as that of the outer arm magnets; wherein
One end of each outer arm magnet is connected with one end of one central column conductor, and the other end of each outer arm magnet is connected with the other end of the adjacent central column conductor through a connecting piece, so that the outer arm magnets are connected in series through the central column conductors.
In an alternative embodiment, the connector comprises:
a first straight connecting part for connecting with the center post conductor;
a second straight connection for connection with the outer arm magnet;
a turning portion connecting the first straight portion and the second straight portion.
In an optional embodiment, an included angle between the first straight connecting part and the second straight connecting part is 360/n degrees, and n is the number of the central column conductors.
In an alternative embodiment, the diverter is made of a flexible material.
In an alternative embodiment, the cross section of the center post conductor is trapezoidal or fan-shaped.
In an alternative embodiment, the axis of the central post is in the plane of the outer arm magnets.
In an alternative embodiment, the outer arm magnet comprises: the first arm is connected with a center post conductor, the second arm is connected with an adjacent center post conductor through a connecting piece, and the third arm is used for connecting the first arm with the second arm; the third arm is arranged along the axial direction of the central column.
In an alternative embodiment, the first arm and the second arm are both perpendicular to the central column axis.
In an alternative embodiment, the center post conductors are distributed in a circular array around the axis of the center post.
In a second aspect, embodiments of the present application provide a fusion device that includes the toroidal field coil described in the above embodiments.
In alternative embodiments, the fusion device is a spherical tokamak or spherical ring.
In the toroidal field coil that this application embodiment provided, the one end of outer arm magnet with one the one end of center post conductor is connected, and the other end passes through the connecting piece and adjacent one the other end of center post conductor is connected, so that outer arm magnet follows the axial setting of center post. The one end of a center post conductor is connected to the one end of the outer arm magnet of toroidal field coil of this application embodiment, and the other end of this outer arm magnet passes through the connecting piece to be connected with the other end of adjacent center post conductor, and a plurality of outer arm magnets all so connect, can realize multiturn coil series connection structure, need not design original hoop series connection structure again, can eliminate the error magnetic field that causes by it, avoids the interference to plasma control. The embodiment of the application has a simple structure, can reduce the complexity of the device, saves materials and manufacturing period, and saves cost.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
The summary of various implementations or examples of the technology described in this application is not a comprehensive disclosure of the full scope or all features of the disclosed technology.
Drawings
In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments, by way of example and not by way of limitation, and together with the description and claims, serve to explain embodiments of the application. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.
Fig. 1 shows a schematic structural diagram of an embodiment of the toroidal field coil according to the present application.
Figure 2 illustrates a schematic structural view of an embodiment of a connector portion of the toroidal field coil of the present application.
Fig. 3 is a schematic diagram illustrating the structures of two adjacent central column conductors and the connected outer arm magnets in an embodiment of the toroidal field coil of the present application.
Fig. 4 shows a schematic diagram of the current profile in fig. 3.
Figure 5 illustrates a top view structural schematic diagram of an embodiment of a center post of the toroidal field coil of the present application.
Description of the figures
1-a central column; 10 a center post conductor; 11-a first center post conductor; 12-a second center post conductor; 2-outer arm magnet; 21-a first arm; 22 a second arm; 23-a third arm; 201-a first outer arm magnet; 202-a second outer arm magnet; 203-a third outer arm magnet; 3-a connector; 31-a first straight connecting portion; 32 a second straight connecting part; 33-a turning section.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings of the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the application without any inventive step, are within the scope of protection of the application.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. As used in this application, the terms "first," "second," and the like do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Detailed descriptions of known functions and known components are omitted in the present application in order to keep the following description of the embodiments of the present application clear and concise.
Referring to fig. 1-5, the embodiment of the present application discloses a toroidal field coil, including a central column 1 and a plurality of outer arm magnets 2 connected to the central column 1, where the central column 1 includes a plurality of central column conductors, and the number of central column conductors 10 is the same as the number of outer arm magnets 2; wherein
One end of each outer arm magnet 2 is connected to one end of one center post conductor 10, and the other end is connected to the other end of the adjacent one center post conductor 10 through a connecting member 3, so that a plurality of outer arm magnets 2 are connected in series through a plurality of center post conductors 10.
In the toroidal field coil that this application embodiment provided, the one end of outer arm magnet 2 is connected with the one end of a center post conductor 10, and the other end passes through connecting piece 3 and is connected with the other end of an adjacent center post conductor 10 to make outer arm magnet 2 along the axial setting of center post 1. Two adjacent center post conductors 10 are connected respectively to the both ends of every outer arm magnet 2 of toroidal field coil of this application embodiment, and different outer arm magnet 2 is connected respectively at the both ends of every center post conductor 10, and a plurality of outer arm magnets 2 are all so connected, can realize multiturn coil series connection structure, need not design original hoop series connection structure again, can eliminate the error magnetic field that causes by it, avoids the interference to plasma control. The embodiment of the application has a simple structure, can reduce the complexity of the device, saves materials and manufacturing period, and saves cost.
Referring to fig. 2, in some embodiments, the connector 3 includes a first straight portion 31, a second straight portion 32, and a turning portion 33. The first straight connecting portion 31 is used for connection with the center post conductor 10. The second straight connecting portion 32 is for connection with the outer arm magnet 2. The turn portion 33 connects the first straight portion 31 and the second straight portion 32. The connecting piece 3 is substantially Z-shaped.
Referring to fig. 2 and 5, in some embodiments, the included angle between the first straight connection portion 31 and the second straight connection portion 32 is 360/n °, where n is the number of center post conductors 10. The first straight connecting portion 31 and the second straight connecting portion 32 are respectively arranged along the radial direction of the center post 1.
In some embodiments, diverter 33 is made of a flexible material. The steering portion 33 is made of a flexible material, which can accommodate expansion and contraction of the central column 1 during operation. For example, the steering portion 33 may accommodate deformation of the central column 1 in the axial direction. Avoiding damage to the outer arm magnet 2.
Referring to fig. 5, in some embodiments, the center post conductor 10 is trapezoidal or fan-shaped in cross-section. In the embodiment of the present application, the central column 1 may have a cylindrical shape or an approximately cylindrical shape. Or the central column 1 may have a polygonal prism shape. The outer contour of the cross section of the polygon prism is a regular polygon or an approximate regular polygon. The number of sides of the polygon is the same as the number of the center post conductors 10.
In some embodiments, the axis of the central post 1 is in the plane of the outer arm magnets 2.
Referring to fig. 3, in some embodiments, the outer arm magnet 2 includes: a first arm 21 connected with a central post conductor 10, a second arm 22 connected with the adjacent central post conductor 10 through a connecting piece 3, and a third arm 23 connecting the first arm 21 and the second arm 22; the third arm 23 is arranged in the axial direction of the center post 1. In the exemplary embodiment, first arm 21, second arm 22, and third arm 23 are substantially U-shaped. A first arm 21 and a second arm 22 are used for connecting the outer arm magnet 2 with the center post 1. The third arm 23 is arranged parallel to the axis of the central column 1.
In some embodiments, the first arm 21 and the second arm 22 are perpendicular to the axis of the central column 1.
In some embodiments, the center post conductors 10 are distributed in a circular array about the axis of the center post 1.
Fig. 4 shows a schematic current flow diagram of the center pole conductor 10 and the outer arm magnet 2 of an embodiment of the toroidal field coil of the present application. Two central post conductors 10 and three outer arm magnets 2 are included in the figure. For convenience of illustration, the two center post conductors 10 are a first center post conductor 11 and a second center post conductor 12, respectively. The three outer arm magnets 2 are a first outer arm magnet 201, a second outer arm magnet 202, and a third outer arm magnet 203, respectively. Wherein the first outer arm magnet 201 shows only the portion (first arm 21) connected to the first center post conductor 11 and the third outer arm magnet 203 shows the portion (second arm 22) connected to the second center post conductor 12 through the connecting member 3. The first arm 21 of the second outer arm magnet 202 is connected to one end of the first center post conductor 11, and the second arm 22 of the second outer arm magnet 202 is connected to the other end of the second center post conductor 12. In the figure, a current flows through the first outer arm magnet 201, the first center post conductor 11, the second outer arm magnet 202, the second center post conductor 12, and the third outer arm magnet 203 in this order.
In a second aspect, embodiments of the present application provide a fusion device that includes the toroidal field coil of the above embodiments.
In some embodiments, the fusion device is a spherical tokamak or spherical ring.
The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more versions thereof) may be used in combination with each other, and it is contemplated that the embodiments may be combined with each other in various combinations or permutations. The scope of the application should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.
Claims (11)
1. A toroidal field coil comprises a central column and a plurality of outer arm magnets connected with the central column, wherein the central column comprises a plurality of central column conductors, and the number of the central column conductors is the same as that of the outer arm magnets; it is characterized in that the preparation method is characterized in that,
one end of each outer arm magnet is connected with one end of one center post conductor, and the other end of each outer arm magnet is connected with the other end of the adjacent center post conductor through a connecting piece, so that the outer arm magnets are connected in series through the center post conductors.
2. The toroidal field coil of claim 1, wherein said connector comprises:
a first straight connecting part for connecting with the center post conductor;
a second straight connection for connection with the outer arm magnet;
a turning portion connecting the first straight portion and the second straight portion.
3. The toroidal field coil as claimed in claim 1, wherein said first straight connection portion and said second straight connection portion have an angle of 360/n °, where n is the number of center post conductors.
4. The toroidal field coil of claim 1, wherein said turnaround portion is made of a flexible material.
5. The toroidal field coil of claim 1, wherein said center post conductor is trapezoidal or fan-shaped in cross-section.
6. The toroidal field coil of claim 1, wherein an axis of said central column lies in a plane of said outer arm magnets.
7. The toroidal field coil of claim 1, wherein said outer arm magnet comprises: the first arm is connected with a central column conductor, the second arm is connected with an adjacent central column conductor, and the third arm is connected with the first arm and the second arm; the third arm is arranged along the axial direction of the central column.
8. The toroidal field coil of claim 7, wherein said first arm and said second arm are both perpendicular to a center post axis.
9. The toroidal field coil of claim 1, wherein said center post conductors are distributed in a circular array about an axis of said center post.
10. A fusion device comprising the toroidal field coil of any of claims 1-9.
11. A fusion device as in claim 10 that is a spherical tokamak or spherical ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010675168.8A CN113936815B (en) | 2020-07-14 | 2020-07-14 | Circumferential field coil and fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010675168.8A CN113936815B (en) | 2020-07-14 | 2020-07-14 | Circumferential field coil and fusion device |
Publications (2)
| Publication Number | Publication Date |
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| CN113936815A true CN113936815A (en) | 2022-01-14 |
| CN113936815B CN113936815B (en) | 2023-11-17 |
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| CN202010675168.8A Active CN113936815B (en) | 2020-07-14 | 2020-07-14 | Circumferential field coil and fusion device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117438172A (en) * | 2023-12-22 | 2024-01-23 | 陕西星环聚能科技有限公司 | Annular field coil and fusion device |
| CN117524511A (en) * | 2024-01-04 | 2024-02-06 | 陕西星环聚能科技有限公司 | Reflux coil assembly and toroidal field coil structure |
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| CN117438172A (en) * | 2023-12-22 | 2024-01-23 | 陕西星环聚能科技有限公司 | Annular field coil and fusion device |
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| CN117524511B (en) * | 2024-01-04 | 2024-04-05 | 陕西星环聚能科技有限公司 | Reflux coil assembly and toroidal field coil structure |
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| CN113936815B (en) | 2023-11-17 |
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