CN112908497B - Central column protection unit, central column protection device and fusion device - Google Patents

Central column protection unit, central column protection device and fusion device Download PDF

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Publication number
CN112908497B
CN112908497B CN201911227053.6A CN201911227053A CN112908497B CN 112908497 B CN112908497 B CN 112908497B CN 201911227053 A CN201911227053 A CN 201911227053A CN 112908497 B CN112908497 B CN 112908497B
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connecting block
ring structure
central column
circular ring
bolt
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CN112908497A (en
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陈博
杨圆明
白仁华
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ENN Science and Technology Development Co Ltd
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ENN Science and Technology Development Co Ltd
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    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21BFUSION REACTORS
    • G21B1/00Thermonuclear fusion reactors
    • G21B1/11Details
    • G21B1/17Vacuum chambers; Vacuum systems
    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21BFUSION REACTORS
    • G21B1/00Thermonuclear fusion reactors
    • G21B1/11Details
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/10Nuclear 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)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

The invention provides a central column protection unit, a central column protection device and a fusion device, wherein the central column protection unit comprises: the protective tile comprises at least two protective tiles (11) and a plurality of first connecting assemblies (12) used for connecting the at least two protective tiles (11), wherein adjacent protective tiles (11) are spliced through the first connecting assemblies (12) to form a circular ring structure, and the first connecting assemblies (12) are located on the inner side of the outer ring surface of the circular ring structure. The first connecting assembly is arranged on the inner side of the outer annular surface of the circular ring structure, so that the interference to the environment outside the circular ring structure can be reduced, and the vacuum chamber of the fusion device is taken as an example, so that the high-energy particle bombardment can be reduced, and the influence on the plasma discharge effect is reduced.

Description

Center post protection unit, center post protection device and fusion device
Technical Field
The invention relates to the technical field of plasma, in particular to a central column protection unit, a central column protection device and a fusion device.
Background
To protect the magnetic measurement device on the outer surface of the central column of the vacuum chamber of the fusion device from object impact, high temperature plasma bombardment, it is often necessary to provide a shielding device on its outside. The protection device is generally formed by mutually connecting a plurality of small protection tiles, and the protection tiles are mechanically connected through a connecting piece to form a closed cylindrical protection body so as to play a role in surface protection. Or large tiles are adopted and are integrally installed.
However, the large size of the connections between the existing protection tiles makes the shield take up a large amount of internal component space in the radial direction. The space reserved for the protection body in the vacuum chamber is limited, and if the space occupied by the connecting piece is large, the protection tile can be thinned in the radial direction or the processing difficulty of the protection body is increased, so that the processing cost of the device is increased. Meanwhile, the existing connecting piece is arranged on the outer side of the protection tile to be protruded, and can be bombarded by high-energy particles in the fusion process, so that larger impurities are generated, and the plasma discharge effect is influenced.
Disclosure of Invention
The invention aims to provide a central column protection unit, a central column protection device and a fusion device, and aims to solve the problem that a protruding structure on the outer side of the protection device influences the plasma discharge effect in the background technology.
To achieve the above object, the present invention first provides a center pillar guard unit, including: at least two protection tiles and be used for connecting a plurality of first connecting element of at least two protection tiles, adjacent two protection tiles form the ring structure through first coupling assembling concatenation, and first connecting element is located the outer anchor ring inboard of ring structure.
Optionally, the first connection assembly comprises: the protective tile comprises a first connecting block, a second connecting block and a first connecting bolt, wherein the first connecting block and the second connecting block are respectively fixed on two adjacent protective tiles, and the first connecting bolt is connected with the first connecting block and the second connecting block;
the distance between the insertion end of the first connecting bolt and the central axis of the circular ring structure is less than the distance between the protruding end of the first connecting bolt and the central axis of the circular ring structure.
Optionally, at least one of the two adjacent protective tiles is provided with a first notch, and the first connecting block is embedded in the first notch.
Optionally, the first connecting block is formed with a first sinking groove, and a notch of the first sinking groove faces the outer side of the circular ring structure;
a first connecting hole is formed in the first sinking groove, and a first threaded hole is formed in the second connecting block; the first connecting bolt penetrates through the first connecting hole from the first sinking groove to be connected with the first threaded hole.
Optionally, a second threaded hole is further formed in the first sinking groove, and the direction of the second threaded hole is arranged along the radial direction of the circular ring structure;
the first connecting assembly further comprises a first adjusting bolt, and the first adjusting bolt is connected to the second threaded hole and used for adjusting the distance between the protective tile and the central column.
The invention provides a central column protection device which comprises a plurality of second connecting components and the central column protection unit;
the central column protection units are sequentially arranged along the axial direction and are sequentially connected through a plurality of second connecting components, and the second connecting components are located on the inner side of the outer annular surface of the circular ring structure.
Optionally, the second connection assembly comprises: the third connecting block, the fourth connecting block and the second connecting bolt;
the third connecting block and the fourth connecting block are respectively fixed on two adjacent central column protection units, and the second connecting bolt is connected with the third connecting block and the fourth connecting block.
Optionally, the end of the protection tile is provided with a second notch, and the third connecting block is embedded in the second notch.
Optionally, a second sinking groove is formed on the third connecting block, and a notch of the second sinking groove faces the outer side of the circular ring structure;
a second connecting hole is formed in the second sinking groove, and a third threaded hole is formed in the fourth connecting block; a second connecting bolt penetrates through the second connecting hole from the second sinking groove to be connected with the third threaded hole; the axial direction of the second connecting bolt is parallel to the axial direction of the circular ring structure.
Optionally, a fourth threaded hole is further formed in the second sinking groove, and the direction of the fourth threaded hole is arranged along the radial direction of the circular ring structure;
the second connecting assembly further comprises a second adjusting bolt, and the second adjusting bolt is connected to the fourth threaded hole and used for adjusting the distance between the protective tile and the central column.
Optionally, the two central pillar protection units at the two ends are connected with conical cylinders, and each conical cylinder is connected with the corresponding central pillar protection unit through the second connection assembly.
The present invention also provides a fusion device comprising: the vacuum chamber comprises a vacuum chamber cavity, a central column positioned in the vacuum chamber cavity and the central column protective device provided by the invention, wherein the central column protective device is sleeved outside the central column.
The first connecting assembly is arranged on the inner side of the outer annular surface of the circular ring structure, so that the interference to the environment outside the circular ring structure can be reduced, and the influence on the plasma discharge effect can be reduced by taking the vacuum chamber of the fusion device as an example.
Drawings
Fig. 1 is a perspective view of a central pillar guard unit according to an embodiment of the present invention;
fig. 2 is an exploded schematic view of the center pillar shielding unit of fig. 1;
FIG. 3 is a front view of the center post guard unit of FIG. 1;
FIG. 4 is a schematic cross-sectional view taken along A-A of FIG. 3;
FIG. 5 is a partial schematic view of the location A in FIG. 4;
FIG. 6 is an exploded view of the first coupling assembly of FIG. 1;
FIG. 7 is a perspective view of a center post guard in accordance with an embodiment of the present invention;
FIG. 8 is a schematic view, partially in section, of the center post guard of FIG. 7;
FIG. 9 is an exploded view of the second linkage assembly of FIG. 8;
fig. 10 is a perspective view of a central column protector in accordance with another embodiment of the present invention.
Reference numerals:
10-a central column guard unit;
11-protective tiles; 111-a first notch; 112-a second notch;
12-a first connection assembly; 121-a first connection block; 1211-first settling tank; 1212-first connection hole; 1213-second threaded hole;
122-a second connection block; 1221-a first threaded hole;
123-first connecting bolt; 124-a first adjusting bolt;
13-a second connection assembly; 131-a third connecting block; 1311-second sink; 1312-second connection hole; 1313-fourth threaded hole;
132-a fourth connection block; 1321-a third threaded hole;
133-second connecting bolt;
134-a second adjusting bolt;
20-conical cylinder.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the description of the embodiments of the invention given above, are within the scope of protection of the invention.
Referring to fig. 1-3, the present embodiment provides a central pillar protecting unit 10, including: at least two protection tiles 11 and be used for connecting a plurality of first coupling component 12 of at least two protection tiles 11, two at least protection tiles 11 form the ring structure through a plurality of first coupling component 12 concatenation, and a plurality of first coupling component 12 all are located the inboard of the outer anchor ring of ring structure to make the outer anchor ring of ring structure not have protruding structure. The first connecting component 12 is disposed inside the outer annular surface of the annular structure, so as to reduce interference to the environment outside the annular structure, and the vacuum chamber of the fusion device is taken as an example, so as to reduce high-energy particle bombardment and reduce influence on the plasma discharge effect.
Specifically, the method comprises the following steps: the first connection assembly 12 includes: the first connecting block 121 and the second connecting block 122 are fixed on two adjacent protective tiles 11 respectively, the first connecting block 121 and the second connecting block 122 are connected with the first connecting block 121 and the second connecting block 122 through the first connecting bolt 123, and the distance between the insertion end of the first connecting bolt 123 and the central axis of the circular ring structure is smaller than that between the protruding end of the first connecting bolt 123 and the central axis of the circular ring structure, so that the insertion end of the first connecting bolt 123 inclines towards the central position of the circular ring structure. The first connecting bolt 123 is obliquely arranged, so that the first connecting bolt 123 occupies a smaller inner space of the circular ring structure on the premise of convenient installation, and the influence of the first connecting component 12 on the inner part of the circular ring structure is reduced.
The shape of the protective shoe 11 is circular arc, and in the present embodiment, one center pillar protective unit 10 includes two semicircular protective shoes 11. A person skilled in the art can also set more protection tiles 11 as required, as long as the protection tiles 11 are connected together to form a circular ring structure.
For a more clear introduction of the present solution, please refer to fig. 4 and 5, an angle of the insertion end of the first connecting bolt 123 inclining to the center of the circular ring structure is θ, and the included angle ranges from 15 ° to 25 °, for example: 18 °, 20 °, 22 °, etc.
Referring to fig. 2, in a specific embodiment, at least one of the two adjacent protective tiles 11 is provided with a first notch 111, and the first connecting block 121 is embedded in the first notch 111. The shape of the first notches 111 matches the shape of the first connecting blocks 121, and the number of the first notches corresponds to that of the first connecting blocks 121. The first notch 111 is provided to expose a part of the first connecting component 12 on the outer annular surface of the circular ring structure, so as to facilitate the connection and installation of the first connecting bolt 123, and the first connecting block 121 can utilize a part of the space of the wall thickness of the protection tile 11, so as to further reduce the occupied space of the first connecting component 12 inside the circular ring structure.
A cover plate, which is understood to be part of the first connecting element 12, can also be provided to cover the first connecting piece 121 after the first connecting screw 123 has been installed.
Specifically, referring to fig. 5 and 6, the first connection block 121 is formed with a first sinking groove 1211, a notch of the first sinking groove 1211 faces to an outer side of the circular ring structure; a first connecting hole 1212 is formed in the first sinking groove 1211, and a first threaded hole 1221 is formed in the second connecting block 122; the first connection bolt 123 is connected from the first sinking groove 1211 to the first screw hole 1221 through the first connection hole 1212. When the first connecting bolt 123 is advanced, a wrench or a screwdriver is inserted into the first sinking groove 1211 from the outside of the ring structure, and is engaged with the first connecting bolt 123 to perform a rotating fastening.
Wherein the direction of first connecting hole 1212 and first screw hole 1221 also is the slope setting, and for the convenience of installation, the shaft hole of first connecting hole 1212 can be slightly greater than the nominal diameter of first connecting bolt 123, also can set up the shaft hole of first connecting hole 1212 to the waist hole, and connection efficiency when this kind of structure is favorable to both to connect.
Further, in order to fix the position of the protection tile 11 and prevent the protection tile 11 from touching the central column to be protected, a second threaded hole 1213 may be further formed in the first sinking groove 1211, and the direction of the second threaded hole 1213 is arranged along the radial direction of the circular ring structure; the first connection assembly 12 further includes a first adjustment bolt 124, and the first adjustment bolt 124 is connected to the second threaded hole 1213 for adjusting the distance of the protection tile 11 from the center pillar. The first adjustment bolt 124 is not connected to the center post during installation, but merely rests on the center post.
The central post protection unit that this embodiment provided, the connection structure with the protection tile has carried out the design improvement, realizes interconnect and spacing between the part, replaces current protection tile and inner member connection form, realizes the little clearance of axiality of the whole spatial position of protection tile and adjusts, and connection after the improvement makes space utilization have great improvement with adjusting the structure, simple structure, low cost, space utilization height.
Referring to fig. 7, the present embodiment further provides a central pillar shielding apparatus, which includes a plurality of second connecting assemblies 13 and a plurality of central pillar shielding units 10 provided in the present embodiment; the plurality of central column protection units 10 are sequentially arranged along the axial direction and are sequentially connected through the plurality of second connecting components 13, the plurality of second connecting components 13 are all located on the inner side of the outer annular surface of the circular ring structure, and at least part of the second connecting components 13 are exposed out of the outer annular surface of the circular ring structure. The central column protector is formed to have a certain length, which is determined according to the length of the central column. The second connecting assembly 13 functions to connect two adjacent center pillar guard units 10. With further reference to fig. 8, which shows a partial schematic view of the interior of the center post protector, it can be seen that the second connecting assembly 13 connects two axially adjacent protector tiles 11 and the first connecting assembly 12 connects two radially adjacent protector tiles 11.
Referring to fig. 9, in particular: the second connecting assembly 13 includes: a third connecting block 131, a fourth connecting block 132, and a second connecting bolt 133; the third connecting block 131 and the fourth connecting block 132 are fixed to two adjacent center post preventing units 10, respectively, and the second connecting bolt 133 connects the third connecting block 131 and the fourth connecting block 132. The second connecting bolt 133 is axially disposed along the central axis direction of the center pillar guard.
In a specific embodiment, the end of the protection tile 11 is provided with a second notch 112, and the third connecting block 131 is embedded in the second notch 112. The second notch 112 and the first notch 111 have similar functions, and are not described in detail herein.
Further, a second sinking groove 1311 is formed on the third connecting block 131, and a notch of the second sinking groove 1311 faces the outer side of the circular ring structure; a second connecting hole 1312 is formed in the second sinking groove 1311, and a third threaded hole 1321 is formed in the fourth connecting block 132; the second coupling bolt 133 is coupled with the third screw hole 1321 through the second coupling hole 1312 from the second sinking groove 1311; the second coupling bolt 133 has an axial direction parallel to the axial direction of the ring structure. The second connection bolt 133 can be installed in the second sinking groove 1311 by forming the second sinking groove 1311 in the third connection block 131, and the second connection bolt 133 can be directly tightened outside the center post protector with a screwdriver since the notch of the second sinking groove 1311 faces the outside of the circular ring structure.
Further, a fourth threaded hole 1313 is further formed in the second sinking groove 1311, and the fourth threaded hole 1313 is arranged in the radial direction of the circular ring structure; the second connecting assembly 13 further comprises a second adjusting bolt 134, and the second adjusting bolt 134 is connected to the fourth threaded hole 1313 for adjusting the distance of the protection tile 11 from the center post. The second adjusting bolt 134 and the first adjusting bolt 124 have the same function, but the installation position is different, and will not be described herein.
With further reference to fig. 10, in a specific embodiment, conical cylinders 20 are connected to two central pillar protecting units 10 at both ends. The conical cylinder 20 is mainly used to match the actual structure of the center post, so that those skilled in the art can set the structure of the two ends of the center post protector according to the actual structure of the center post.
The present embodiment also provides a fusion device comprising: the vacuum chamber comprises a vacuum chamber cavity, a central column positioned in the vacuum chamber cavity and the central column protective device provided by the embodiment, wherein the central column protective device is sleeved outside the central column.
Compared with the existing protective device, the central column protective device provided by the embodiment can effectively improve the plasma discharge effect of the vacuum chamber; the first connecting component 12 adopts a threaded connection structure which is obliquely arranged, so that the space of an inner component occupied by the connecting piece in the radial direction is reduced, and the rapid installation and alignment of the protective tile on the inner component can be realized. The vacuum chamber can be used in fusion devices.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (11)

1. A central column guard unit (10), comprising: the protective tile comprises at least two protective tiles (11) and a plurality of first connecting components (12) used for connecting the at least two protective tiles (11), wherein adjacent protective tiles (11) are spliced through the first connecting components (12) to form a circular ring structure, and the first connecting components (12) are positioned on the inner side of the outer ring surface of the circular ring structure, so that the outer ring surface of the circular ring structure has no convex structure;
the first connection assembly (12) comprises: the protective tile comprises a first connecting block (121), a second connecting block (122) and a first connecting bolt (123), wherein the first connecting block (121) and the second connecting block (122) are respectively fixed on two adjacent protective tiles (11), and the first connecting bolt (123) is used for connecting the first connecting block (121) and the second connecting block (122);
the distance between the insertion end of the first connecting bolt (123) and the central axis of the circular ring structure is smaller than the distance between the protruding end of the first connecting bolt (123) and the central axis of the circular ring structure, so that the insertion end of the first connecting bolt (123) inclines towards the central position of the circular ring structure.
2. The central column protective unit (10) according to claim 1, characterized in that at least one of two adjacent protective tiles (11) is provided with a first notch (111), and the first connecting block (121) is embedded in the first notch (111).
3. The central column protective unit (10) according to claim 2, characterized in that the first connecting block (121) is formed with a first sinking groove (1211), the notch of the first sinking groove (1211) facing the outside of the circular ring structure;
a first connecting hole (1212) is formed in the first sinking groove (1211), and a first threaded hole (1221) is formed in the second connecting block (122); the first connection bolt (123) is connected with the first threaded hole (1221) from the first sinking groove (1211) through the first connection hole (1212).
4. The central column protective unit (10) according to claim 3, wherein a second threaded hole (1213) is further opened in the first sinking groove (1211), and the direction of the second threaded hole (1213) is arranged along the radial direction of the circular ring structure;
the first connection assembly (12) further comprises a first adjusting bolt (124), the first adjusting bolt (124) is connected to the second threaded hole (1213) for adjusting the distance of the protective tile (11) from the center post.
5. A central column protector comprising a number of second connecting members (13) and a number of central column protector units (10) according to any one of claims 1-4;
the central column protection units (10) are sequentially arranged along the axial direction and are sequentially connected through the second connecting assemblies (13), and the second connecting assemblies (13) are located on the inner side of the outer ring surface of the circular ring structure.
6. The center post guard as claimed in claim 5, wherein the second connecting assembly (13) comprises: a third connecting block (131), a fourth connecting block (132), and a second connecting bolt (133);
the third connecting block (131) and the fourth connecting block (132) are respectively fixed on two adjacent central column protection units (10), and the second connecting bolt (133) connects the third connecting block (131) and the fourth connecting block (132).
7. The center post guard as claimed in claim 6, characterized in that the end of the guard shoe (11) is provided with a second notch (112), the third connecting block (131) being embedded in the second notch (112).
8. The central column protector as claimed in claim 7, characterized in that a second sunken groove (1311) is formed on the third connecting block (131), the notch of the second sunken groove (1311) facing the outside of the circular ring structure;
a second connecting hole (1312) is formed in the second sinking groove (1311), and a third threaded hole (1321) is formed in the fourth connecting block (132); the second connecting bolt (133) passes through the second connecting hole (1312) from the second sunk groove (1311) to be connected with the third threaded hole (1321); the axial direction of the second connecting bolt (133) is parallel to the axial direction of the ring structure.
9. The center post protector as claimed in claim 8, wherein a fourth threaded hole (1313) is further opened in the second sinking groove (1311), and the direction of the fourth threaded hole (1313) is arranged along the radial direction of the circular ring structure;
the second connecting assembly (13) further comprises a second adjusting bolt (134), and the second adjusting bolt (134) is connected to the fourth threaded hole (1313) and used for adjusting the distance from the protective tile (11) to the central column.
10. The center post guard device as claimed in claim 5, wherein two center post guard units (10) at both ends are connected with a conical cylinder (20), and each conical cylinder (20) is connected with the corresponding center post guard unit (10) through the second connecting assembly (13).
11. A fusion device, comprising: a vacuum chamber cavity, a center post located within the vacuum chamber cavity, and the center post guard of any of claims 5-10, the center post guard being sleeved outside the center post.
CN201911227053.6A 2019-12-04 2019-12-04 Central column protection unit, central column protection device and fusion device Active CN112908497B (en)

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CN112908497B true CN112908497B (en) 2022-09-20

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