Breeder blanket assembly for a nuclear fusion device and nuclear fusion device

Abstract

The application discloses a kind of nuclear fusion device's breeding blanket assembly and nuclear fusion device, it is related to nuclear fusion technical field, the breeding blanket assembly includes: vacuum chamber;Low field side blanket and high field side blanket, the low field side blanket is hung in the vacuum chamber by first hook structure, and the low field side blanket is positioned with the inner wall of the vacuum chamber, the high field side blanket is hung in the vacuum chamber by second hook structure, and the high field side blanket is positioned with the inner wall of the vacuum chamber.The breeding blanket assembly of nuclear fusion device of the application, by the way of hanging and positioning combination, the low field side blanket and high field side blanket are installed in vacuum chamber, can simplify support fixed structure, reduce setting cost, and can reduce the space occupation of structure piece required by support fixing in vacuum chamber, reduce installation difficulty, and the form of hanging and positioning cooperation is simple to install, it is beneficial to maintain by remote control operation.

Description

Technical Field

[0001] This invention relates to the field of nuclear fusion technology, and more particularly to a breeding blanket assembly for a nuclear fusion device and a nuclear fusion device. Background Technology

[0002] The breeder blanket is one of the core components of a nuclear fusion device, and its main functions are tritium breeding, energy conversion, and radiation shielding. The breeder blanket is connected to the vacuum chamber via a support structure, but the current support structure is cumbersome and occupies a large amount of space, leaving room for improvement. Summary of the Invention

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a breeding blanket assembly for a nuclear fusion device, wherein the low-field side blanket and the high-field side blanket of the breeding blanket assembly can be installed in a vacuum chamber by means of hanging and positioning, which has a simple structure and occupies less space.

[0004] The breeding blanket assembly of a nuclear fusion device according to an embodiment of the present invention includes: a vacuum chamber; a low-field side blanket and a high-field side blanket, wherein the low-field side blanket is hung in the vacuum chamber by a first hook structure and is positioned and engaged with the inner wall of the vacuum chamber, and the high-field side blanket is hung in the vacuum chamber by a second hook structure and is positioned and engaged with the inner wall of the vacuum chamber.

[0005] According to the embodiment of the present invention, the breeding blanket assembly of the nuclear fusion device can reduce the number of structural components required to support and fix the low-field side blanket and the high-field side blanket by installing them in the vacuum chamber in a combination of hanging and positioning, thereby reducing the installation cost. It can also reduce the space occupied by the structural components required for support and fixation in the vacuum chamber, reduce the installation difficulty, and the hanging and positioning combination method is simple to install and facilitates maintenance through remote control operation.

[0006] According to some embodiments of the present invention, in the breeding blanket assembly of a nuclear fusion device, the first hook structure includes a first hook portion and a first hook seat, the first hook portion is disposed on the low field side blanket, the first hook seat is disposed on the inner wall of the vacuum chamber, and the first hook portion is hooked to the first hook seat; And / or, the second hook structure includes a second hook portion and a second hook seat, the second hook portion is disposed on the high field side cladding, the second hook seat is disposed on the inner wall of the vacuum chamber, and the second hook portion is hooked to the second hook seat.

[0007] According to some embodiments of the present invention, the breeding blanket assembly of a nuclear fusion device further includes a limiting structure installed in the vacuum chamber, wherein at least a portion of the limiting structure is limited between the high-field side blanket and the low-field side blanket. The limiting structure is used to radially limit the high-field side cladding and the low-field side cladding, respectively.

[0008] According to some embodiments of the present invention, in the breeding blanket assembly of a nuclear fusion device, the first hook portion, the first hook seat and the low field side blanket are all multiple sets and correspond one-to-one, and the limiting structure is used to radially limit the multiple low field side blankets respectively; And / or, the second hook portion, the second hook seat and the high field side cladding are all multiple sets that cooperate in a one-to-one correspondence, and the limiting structure is used to radially limit the multiple high field side claddings respectively.

[0009] According to some embodiments of the present invention, in the breeding blanket assembly of a nuclear fusion device, there are three first hook seats and three first hook portions, and the three first hook seats are arranged sequentially in a circumferential direction; In the ring direction, the two first hook seats at both ends are fixedly connected to the inner wall of the vacuum chamber, and the first hook seat in the middle is detachably connected to the two first hook seats at both ends through a first connector.

[0010] According to some embodiments of the present invention, the breeding blanket assembly of a nuclear fusion device includes a limiting structure comprising three limiting blocks, the three limiting blocks being arranged sequentially along the circumferential direction and distributed in one-to-one correspondence with the three first hook portions; In the ring direction, the two limiting blocks at both ends are detachably connected to the inner wall of the vacuum chamber via a second connector, and the limiting block in the middle is detachably connected to the two limiting blocks at both ends via a third connector.

[0011] According to some embodiments of the present invention, in the breeding blanket assembly of a nuclear fusion device, the second hook structure further includes an elastic preload member, which elastically presses against the second hook portion and is used to apply an elastic force to the second hook portion toward the second hook seat for preloading.

[0012] According to some embodiments of the present invention, in the breeding blanket assembly of a nuclear fusion device, the low-field side blanket and the inner wall of the vacuum chamber are positioned and engaged by at least one set of first positioning structures, the first positioning structure including a positioning post and a positioning groove for insertion and positioning engagement; And / or, the high-field side cladding is positioned and engaged with the inner wall of the vacuum chamber by at least one set of second positioning structures, the second positioning structures including positioning splines and positioning keyways for insertion positioning engagement.

[0013] According to some embodiments of the present invention, in the breeding blanket assembly of a nuclear fusion device, the first hook structure is disposed on the top of the low-field side blanket, and the first positioning structure is disposed on the bottom of the low-field side blanket; And / or, the second hook structure is in multiple sets, and the multiple sets of the second hook structure are distributed at intervals along the polar direction in the high field side cladding; And / or, the second positioning structure is in multiple sets, and the multiple sets of the second positioning structure are distributed at intervals along the polar direction in the high field side cladding.

[0014] The present invention also proposes a nuclear fusion device.

[0015] According to some embodiments of the present invention, a nuclear fusion device includes the breeding blanket assembly of the nuclear fusion device described in any of the above embodiments.

[0016] The nuclear fusion device and the aforementioned breeding blanket assembly have the same advantages over the prior art, which will not be repeated here.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the installation of the low-field side cladding and the high-field side cladding of the proliferation cladding assembly according to some embodiments of the present invention; Figure 2 These are schematic diagrams of the structure of the proliferation envelope assembly according to some embodiments of the present invention; Figure 3 This is a schematic diagram (with limit structure) of the installation of the low-field side cladding and vacuum chamber of the proliferation cladding assembly in some embodiments of the present invention. Figure 4 This is a partial schematic diagram of the low-field side cladding and vacuum chamber of the proliferation cladding assembly in some embodiments of the present invention at the first positioning structure; Figure 5 This is a schematic diagram of the installation of the low-field side cladding and vacuum chamber of the proliferation cladding assembly according to some embodiments of the present invention (without position structure). Figure 6 This is a partial schematic diagram of the low-field side cladding and vacuum chamber of the proliferation cladding assembly in some embodiments of the present invention at the first hook structure; Figure 7 This is a partial schematic diagram (another perspective) of the low-field side cladding and vacuum chamber of the proliferation cladding assembly in some embodiments of the present invention at the first hook structure. Figure 8 This is a schematic diagram of the proliferation cladding assembly at the first hook structure in some embodiments of the present invention; Figure 9 This is a schematic diagram of the connection of the first hook seat of the proliferation cladding assembly according to some embodiments of the present invention; Figure 10 This is a schematic diagram of the installation of the low-field side cladding and vacuum chamber of the proliferation cladding assembly in some embodiments of the present invention (another perspective of the infinite structure). Figure 11 This is a partial schematic diagram of the low-field side cladding and vacuum chamber of the proliferation cladding assembly in some embodiments of the present invention at the first hook structure and the limiting structure; Figure 12 This is an exploded view of the low-field side cladding and vacuum chamber of the proliferation cladding assembly in some embodiments of the present invention at the first hook structure and the limiting structure; Figure 13 This is a partial schematic diagram of the low-field side cladding of the proliferation cladding assembly in some embodiments of the present invention at the first hook structure and the limiting structure; Figure 14 This is a schematic diagram of the vacuum chamber structure of the proliferation cladding assembly according to some embodiments of the present invention; Figure 15 This is a schematic diagram of the high-field side cladding of the proliferation cladding assembly according to some embodiments of the present invention; Figure 16 This is a schematic diagram of the high-field side cladding and vacuum chamber of the proliferation cladding assembly in some embodiments of the present invention at the second hook structure; Figure 17 This is a schematic diagram of the high-field side cladding and vacuum chamber of the proliferation cladding assembly in some embodiments of the present invention at the second positioning structure; Figure 18 This is a schematic diagram of the structure of the proliferation envelope assembly according to some embodiments of the present invention (from another perspective); Figure 19 This is a top schematic diagram of the proliferation envelope assembly according to some embodiments of the present invention.

[0019] Figure label: Proliferating envelope assembly 100, Vacuum chamber 1, vertical window 11, Low-field side cladding 21, stepped surface 211, high-field side cladding 22. First hook structure 31, first hook part 311, first hook seat 312, second hook structure 32, second hook part 321, second hook seat 322, first positioning structure 33, positioning post 331, positioning groove 332, second positioning structure 34, positioning spline 341, positioning keyway 342, elastic preload member 35. Limiting structure 41, limiting block 411, moving block 42, first connecting member 51, second connecting member 52, third connecting member 53. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] The following is for reference. Figures 1-19 The description of the breeding blanket assembly 100 of the nuclear fusion device according to an embodiment of the present invention is as follows: the low-field side blanket 21 and the high-field side blanket 22 of the breeding blanket assembly 100 can be installed in the vacuum chamber 1 by means of hooking and positioning. The required support and connection space is small, the space occupied in the vacuum chamber 1 is small, the space in the vacuum chamber 1 is not too compact, and the installation difficulty is reduced.

[0023] First, it should be noted that the proliferation cladding assembly 100 in this invention has the following reference orientation, namely, including as follows: Figure 1 The radial, polar, and circumferential spatial directions shown are used as a reference for the directions mentioned later.

[0024] like Figures 1-19 As shown, a breeding blanket assembly 100 of a nuclear fusion device according to an embodiment of the present invention includes: a vacuum chamber 1, a low-field side blanket 21, and a high-field side blanket 22. The vacuum chamber 1 is constructed as a hollow structure, that is, an interior space is formed inside the vacuum chamber 1. The low-field side blanket 21 and the high-field side blanket 22 are both installed in the interior space, and the low-field side blanket 21 and the high-field side blanket 22 are respectively installed and connected to the vacuum chamber 1 so that the low-field side blanket 21 and the high-field side blanket 22 are stably installed inside the vacuum chamber 1.

[0025] In actual installation, the low-field side cladding 21 is hung inside the vacuum chamber 1 through the first hook structure 31, and the low-field side cladding 21 is positioned and engaged with the inner wall of the vacuum chamber 1. That is, the low-field side cladding 21 can be hooked and engaged with the vacuum chamber 1 through the first hook structure 31, and at the same time, it is positioned and engaged with the vacuum chamber 1 through a set of positioning structures, thereby forming a combination of hooking and positioning fixing method, so that the weight of the low-field side cladding 21 is supported in the vacuum chamber 1 through the hooking and positioning insertion method, realizing the detachable connection between the low-field side cladding 21 and the vacuum chamber 1. The structure is simple and does not occupy too much internal space. Meanwhile, the high-field side cladding 22 is hung inside the vacuum chamber 1 through the second hook structure 32, and the high-field side cladding 22 is positioned and engaged with the inner wall of the vacuum chamber 1. That is, the high-field side cladding 22 can be hooked and engaged with the vacuum chamber 1 through the second hook structure 32, and at the same time, it is positioned and engaged with the vacuum chamber 1 through another set of positioning structures, thus forming a combination of hooking and positioning fixing method, so that the weight of the high-field side cladding 22 is supported in the vacuum chamber 1 through the hooking and positioning insertion method, realizing the detachable connection between the high-field side cladding 22 and the vacuum chamber 1. The structure is simple and does not require too much internal space.

[0026] Both the first hook structure 31 and the second hook structure 32 can adopt a combination of hooks and hook seats to achieve load-bearing connection without the need for complex connection structures, thus reducing installation difficulty. Simultaneously, the positioning structures between the low-field side blanket 21 and the vacuum chamber 1, and between the high-field side blanket 22 and the vacuum chamber 1, can adopt a combination of positioning protrusions and positioning recesses, resulting in a simple structure that facilitates rapid installation. It should be noted that the breeding blanket is located inside the vacuum chamber 1, closer to the core plasma region. It operates under extremely harsh conditions, requiring it to withstand high temperatures (approximately 600°C), significant thermal stress, and instantaneous electromagnetic loads generated by plasma rupture. Therefore, it requires frequent maintenance (approximately once every two years). Furthermore, the fusion reaction can cause radioactive contamination of the breeding blanket, so personnel cannot enter the site for maintenance; maintenance must be performed remotely. Therefore, the combination of hooking and positioning for fixation simplifies maintenance, and remote maintenance of the low-field side blanket 21 and the high-field side blanket 22 can be performed remotely, reducing maintenance difficulty. Meanwhile, the connection and positioning are simple and do not require complex structures for connection, which helps to reduce the structural components required for the cladding support structure and reduce the space occupied in the vacuum chamber 1.

[0027] Therefore, when installing the proliferation cladding assembly 100, the low-field cladding 21 and the high-field cladding 22 are positioned and hung in the vacuum chamber 1 respectively, so that detachable installation and fixation can be achieved.

[0028] According to an embodiment of the present invention, the breeding blanket assembly 100 of the nuclear fusion device can reduce the number of structural components required to support and fix the low-field side blanket 21 and the high-field side blanket 22 by installing them in the vacuum chamber 1 in a combination of hanging and positioning, thereby reducing the installation cost. It can also reduce the space occupied by the structural components required for support and fixation in the vacuum chamber 1, reduce the installation difficulty, and the hanging and positioning combination method is simple to install and facilitates maintenance through remote control operation.

[0029] In some embodiments, such as Figures 6-8 As shown, the first hook structure 31 includes a first hook portion 311 and a first hook seat 312. The first hook portion 311 is disposed on the low-field side cladding 21, and the first hook seat 312 is disposed on the inner wall of the vacuum chamber 1. The first hook portion 311 is hooked onto the first hook seat 312. That is, when installing and fixing the low-field side cladding 21, the first hook seat 312 can be fixed to the inner wall of the vacuum chamber 1, and the first hook portion 311 can be fixedly connected. Then, the first hook portion 311 is hooked onto the first hook seat 312, so that the low-field side cladding 21 is installed in the vacuum chamber 1, realizing the hooking and installation of the low-field side cladding 21.

[0030] It should be noted that the first hook base 312 may have an upward-opening first hook groove, and the first hook portion 311 may extend into the first hook groove and be supported above the first hook base 312. That is, no complex structure is required between the first hook portion 311 and the first hook base 312; they can be hooked together by gravity. The structure is simple and the connection method is easy to implement. In actual design, the first hook portion 311 may be integrally formed in the low-field side cladding 21, or it may be connected to the low-field side cladding 21 by welding. Similarly, the first hook base 312 may be integrally formed in the vacuum chamber 1, or it may be connected to the vacuum chamber 1 by welding.

[0031] And / or, such as Figures 14-16 As shown, the second hook structure 32 includes a second hook portion 321 and a second hook seat 322. The second hook portion 321 is disposed on the high-field side cladding 22, and the second hook seat 322 is disposed on the inner wall of the vacuum chamber 1. The second hook portion 321 is hooked onto the second hook seat 322. That is, when installing and fixing the high-field side cladding 22, the second hook seat 322 can be fixed to the inner wall of the vacuum chamber 1, and the second hook portion 321 can be fixedly connected. Then, the second hook portion 321 is hooked onto the second hook seat 322, so that the high-field side cladding 22 is installed in the vacuum chamber 1, realizing the hooking and installation of the high-field side cladding 22.

[0032] Similarly, the second hook base 322 can be formed with an upward-opening second hook groove, and the second hook portion 321 can extend into the second hook groove and be supported above the second hook base 322. That is, no complex structure is required between the second hook portion 321 and the second hook base 322; they can be hooked together by gravity. The structure is simple and the connection method is easy to implement. In actual design, the second hook portion 321 can be integrally formed on the high-field side cladding 22, or it can be connected to the high-field side cladding 22 by welding. Similarly, the second hook base 322 can be integrally formed on the vacuum chamber 1, or it can be connected to the vacuum chamber 1 by welding.

[0033] It should also be noted that, in actual design, the number of the first hook structure 31 and the second hook structure 32 can be flexibly set. For example, one, two or more first hook structures 31 can be set for each low field side cladding 21, and one, two or more second hook structures 32 can be set for each high field side cladding 22.

[0034] In some embodiments, such as Figures 1-3 , Figures 10-13 As shown, the breeding blanket assembly 100 of the nuclear fusion device also includes a limiting structure 41, which is installed inside the vacuum chamber 1. At least a portion of the limiting structure 41 is confined between the high-field side blanket 22 and the low-field side blanket 21. Figure 1 and Figure 2As shown, both the high-field side cladding 22 and the low-field side cladding 21 are installed inside the vacuum chamber 1, and the high-field side cladding 22 and the low-field side cladding 21 are radially spaced apart. The limiting structure 41 is installed at the top inside the vacuum chamber 1, and the bottom part of the limiting structure 41 extends between the top of the high-field side cladding 22 and the bottom of the low-field side cladding 21 to provide radial limiting and stopping for the high-field side cladding 22 and the low-field side cladding 21, thereby ensuring the installation stability of the high-field side cladding 22 and the low-field side cladding 21.

[0035] The limiting structure 41 is used to radially limit the low-field side cladding 21 and the high-field side cladding 22 respectively. That is, after the low-field side cladding 21 is hooked and fixed to the vacuum chamber 1, the limiting structure 41 is located in the radial direction of the low-field side cladding 21 so that the limiting structure 41 can radially stop the fit between the low-field side cladding 21 and the vacuum chamber 1, ensuring the reliability of the connection between the low-field side cladding 21 and the vacuum chamber 1.

[0036] Meanwhile, after the high-field side cladding 22 is attached and fixed to the vacuum chamber 1, the limiting structure 41 is located in the radial direction of the high-field side cladding 22 so that the limiting structure 41 can radially stop the fit between the high-field side cladding 22 and the vacuum chamber 1, thereby ensuring the reliability of the connection between the high-field side cladding 22 and the vacuum chamber 1.

[0037] Therefore, by extending the limiting structure 41 between the high-field side cladding 22 and the low-field side cladding 21, the limiting structure 41 can be shared. That is, the high-field side cladding 22 and the low-field side cladding 21 do not need to be separately equipped with limiting structures 41, which reduces the number of limiting structures 41, lowers the installation cost, and reduces the space occupied by the limiting structure 41 in the vacuum cavity.

[0038] Specifically, limiting at least a portion of the limiting structure 41 is located between the high-field side cladding 22 and the low-field side cladding 21, which can limit the relative position between the high-field side cladding 22 and the low-field side cladding 21. For example, the high-field side cladding 22 and the low-field side cladding 21 are radially limited and stopped, preventing the high-field side cladding 22 and the low-field side cladding 21 from moving towards each other and falling off relative to the vacuum chamber 1, thereby improving installation stability.

[0039] In some embodiments, the first hook portion 311, the first hook seat 312, and the low-field side cladding 21 are multiple sets that cooperate one-to-one, so that multiple low-field side cladding 21s can be configured. Each low-field side cladding 21 can be installed in the vacuum chamber 1 through the cooperation of a first hook portion 311 and a first hook seat 312. The limiting structure 41 is used to radially limit the multiple low-field side cladding 21s respectively. In this way, each low-field side cladding 21 can be limited and stopped by the limiting structure 41, ensuring that the multiple low-field side cladding 21s can be stably installed in the vacuum chamber 1.

[0040] Alternatively, the second hook portion 321, the second hook seat 322, and the high-field side cladding 22 can be configured in multiple sets, each corresponding to the other, allowing the high-field side cladding 22 to be set into multiple sets. Each high-field side cladding 22 can be installed in the vacuum chamber 1 through the cooperation of one set of second hook portions 321 and one set of second hook seats 322. The limiting structure 41 is used to radially limit the multiple high-field side cladding 22 respectively. In this way, each high-field side cladding 22 can be limited and stopped by the limiting structure 41, ensuring that the multiple high-field side cladding 22 can be stably installed in the vacuum chamber 1.

[0041] It should be noted that in the magnetic confinement fusion device, the breeder blanket adopts a multi-module design. Multiple vertical windows 11 can be set at the top of the vacuum chamber 1, such as 16 vertical windows 11. Each window corresponds to 5 blanket segments, including 3 low-field side blankets 21 and 2 high-field side blankets 22. This allows for the installation and fixation of a larger number of low-field side blankets 21 and high-field side blankets 22, and the quantity setting is more flexible.

[0042] In some embodiments, there are three first hook seats 312 and three first hook portions 311, with the three first hook seats 312 arranged sequentially in a circumferential direction, that is, the three first hook seats 312 are arranged sequentially in a circumferential direction within the vacuum chamber 1. In other words, the low-field side cladding 21, the first hook seats 312, and the first hook portions 311 are all configured as three, and are all arranged sequentially in a circumferential direction within the vacuum chamber 1.

[0043] It should be noted that, as Figure 2 As shown, the vacuum chamber 1 is constructed as a ring-shaped component, and both sides of the vacuum chamber 1 are open. The circumferential direction can be the opening direction of the vacuum chamber 1, that is, the interior space is an open space that runs through the vacuum chamber 1 along the circumferential direction.

[0044] In the circumferential direction, the two first hook seats 312 located at both ends are fixedly connected to the inner wall of the vacuum chamber 1, and the first hook seat 312 located in the middle is detachably connected to the two first hook seats 312 located at both ends through the first connector 51. For example, the first hook seat 312 located in the middle is directly opposite a vertical window 11 at the top of the vacuum chamber 1, and the two first hook seats 312 located at both ends are staggered from the vertical window 11.

[0045] In this way, during actual connection, the two first hook seats 312 located at both ends can be welded and fixed to the inner wall of the vacuum chamber 1, or connected and fixed in other ways. At the same time, the first hook seat 312 located in the middle is separated from the interior of the vacuum chamber 1 and can be connected and fixed by two adjacent first hook seats 312. For example, the first hook seat 312 located in the middle can be detachably connected to the adjacent first hook seat 312 through the first connector 51, so that the first hook seat 312 located in the middle does not directly connect and fix to the inner wall of the vacuum chamber 1, thus achieving relative fixation with the vacuum chamber 1. This also solves the problem that the first hook seat 312 cannot be welded and fixed at the vertical window 11, improving the rationality of the structural design.

[0046] In a specific design, the first connector 51 can be configured as a connecting bolt so that two adjacent first hook seats 312 can be detachably connected by the connecting bolt.

[0047] In some embodiments, such as Figures 10-13 As shown, the limiting structure 41 includes three limiting blocks 411, which are arranged sequentially in a circumferential direction and correspond one-to-one with the three first hook portions 311. The number of limiting blocks 411 can be set to be the same as the number of first hook seats 312, first hook portions 311, and low-field side cladding 21. In this way, each low-field side cladding 21 can correspond to a set of first hook seats 312 and first hook parts 311, and also correspond to a limiting block 411, so that each low-field side cladding 21 can be limited and stopped by a limiting block 411, ensuring the reliability of the hooking.

[0048] Specifically, such as Figures 10-13 As shown, there are three low-field side cladding layers 21, and each of the three low-field side cladding layers 21 has a first hook portion 311 on its top. The top of the inner wall of the vacuum chamber 1 is provided with three first hook seats 312, and the three first hook portions 311 are respectively hooked to the three first hook seats 312. At the same time, there are three limiting blocks 411 on the top of the inner wall of the vacuum chamber 1. The three limiting blocks 411 are all located on the side of the corresponding first hook portion 311 away from the first hook seat 312, so as to radially limit and stop the three low-field side cladding layers 21.

[0049] It should also be noted that, in some embodiments, a movable stop 42 may be provided between the limiting stop 411 and the low-field side cladding 21, so that the limiting stop 411 can radially limit and stop the low-field side cladding 21 through the movable stop 42. Specifically, as shown in... Figure 6 and Figure 7As shown, multiple stepped surfaces 211 are formed sequentially on the top of the low-field side cladding 21, and the first hook portion 311 is connected to the uppermost stepped surface 211. Figure 11 As shown, the movable stop 42 can be supported on one of the stepped surfaces 211 to press against and fit against the side of the first hook portion 311 opposite to the first hook seat 312. Then, the limiting stop 411 is fixed to the side of the movable stop 42 opposite to the first hook portion 311 to limit and stop it. In addition, the movable stop 42 is made of flexible insulating material and plays an insulating role between the high field side cladding 22 and the low field side cladding 21.

[0050] In the circumferential direction, the two limiting blocks 411 at both ends are detachably connected to the inner wall of the vacuum chamber 1 via the second connecting member 52, and the limiting block 411 in the middle is detachably connected to the two limiting blocks 411 at both ends via the third connecting member 53. Figure 11 and Figure 12 As shown, the shape of the middle limiting block 411 and the two limiting blocks 411 at both ends can be constructed differently. For example, the middle limiting block 411 can be constructed as a T-shaped block so that the T-shaped block can be connected to the other two limiting blocks 411 respectively.

[0051] Specifically, such as Figure 12 and Figure 13 As shown, the tops of the two limiting blocks 411 at both ends can be connected to the inner wall of the vacuum chamber 1 via the second connector 52, so that the two limiting blocks 411 are relatively fixed. Then, a T-shaped block is placed between the other two limiting blocks 411 and connected and fixed via the third connector 53. Thus, the limiting blocks 411 and the first hook part 311 can be relatively fixed. The structure is simple and the connection is convenient. Both the second connector 52 and the third connector 53 can be constructed as connecting bolts for easy assembly and disassembly, or they can be detachably connected in other forms.

[0052] And / or, in some embodiments, the second hook structure 32 further includes an elastic preload member 35, which elastically presses against the second hook portion 321 and applies an elastic force to the second hook portion 321 toward the second hook seat 322. That is, the elastic preload member 35 allows the second hook portion 321 to be held more stably in the position engaging with the second hook seat 322, achieving stable connection between the second hook portion 321 and the second hook seat 322, and improving the installation stability of the high-field side cladding 22.

[0053] Among them, such as Figure 16As shown, the second hook seat 322 has a radially open hook receiving space. The second hook portion 321 extends into the hook receiving space and is hung and supported downwards on the second hook seat 322. The elastic preload member 35 can be constructed as a spring, which can be a disc spring. The spring is also located within the hook receiving space, with one end pressing against the inner top of the hook receiving space and the other end pressing against the second hook portion 321. The elastic preload member 35 can be kept in a compressed state to apply a stable elastic preload force to the elastic preload member 35. Specifically, the elastic preload member 35 can be positioned above the second hook portion 321 to preload the second hook portion 321 downwards, preventing the second hook portion 321 from disengaging upwards relative to the second hook seat 322.

[0054] Therefore, by setting the elastic pretensioner 35, the second hook structure 32 can be elastically pretensioned, thereby improving the installation stability of the high-field side cladding 22.

[0055] In some embodiments, the low-field side cladding 21 and the inner wall of the vacuum chamber 1 are positioned and engaged by at least one set of first positioning structures 33. One, two, or more sets of first positioning structures 33 can be provided to make the positioning between the low-field side cladding 21 and the vacuum chamber 1 more reliable. Thus, the number of first positioning structures 33 can be flexibly set.

[0056] The first positioning structure 33 includes a positioning post 331 and a positioning groove 332. The positioning post 331 and the positioning groove 332 are inserted and positioned together, so that one of the positioning post 331 and the positioning groove 332 can be set on the low field side cladding 21, and the other of the positioning post 331 and the positioning groove 332 can be set on the inner wall of the vacuum chamber 1. Thus, the positioning and installation of the low field side cladding 21 and the vacuum chamber 1 can be achieved through the cooperation of the positioning post 331 and the positioning groove 332.

[0057] Specifically, if the positioning groove 332 is set on the inner wall of the vacuum chamber 1 and the positioning groove 332 is constructed to be open upwards, and the positioning post 331 is set on the outer peripheral wall of the low field side cladding 21 and extends downwards, then when positioning the low field side cladding 21, the positioning post 331 can be inserted downwards into the positioning groove 332 for positioning, thereby improving the connection reliability.

[0058] And / or, in some embodiments, the high-field side cladding 22 and the inner wall of the vacuum chamber 1 are positioned and engaged by at least one set of second positioning structures 34. One, two, or more sets of second positioning structures 34 can be provided to make the positioning between the high-field side cladding 22 and the vacuum chamber 1 more reliable. Thus, the number of second positioning structures 34 can be flexibly set.

[0059] Among them, such as Figure 17As shown, the second positioning structure 34 includes a positioning spline 341 and a positioning keyway 342. The positioning spline 341 and the positioning keyway 342 are inserted and positioned together, so that one of the positioning spline 341 and the positioning keyway 342 can be set on the high field side cladding 22, and the other of the positioning spline 341 and the positioning keyway 342 can be set on the inner wall of the vacuum chamber 1. Thus, the positioning and installation of the high field side cladding 22 and the vacuum chamber 1 can be achieved through the cooperation of the positioning spline 341 and the positioning keyway 342.

[0060] Specifically, if the positioning keyway 342 is disposed on the outer wall of the high field side cladding 22 and the positioning keyway 342 is configured to be open in the radial direction, and the positioning spline 341 is disposed on the inner peripheral wall of the vacuum chamber 1 and extends in the radial direction, then when positioning the high field side cladding 22, the positioning spline 341 is inserted into the positioning keyway 342 in the radial direction for positioning, thereby improving the connection reliability.

[0061] It should be noted that the vacuum chamber 1 is an annular structure. The low-field side cladding 21 can be installed and fixed in the vacuum chamber 1 along the polar, radial, and circumferential directions using the first positioning structure 33, the first hook structure 31, and the limiting structure 41. Similarly, the high-field side cladding 22 can be installed and fixed in the vacuum chamber 1 along the polar, radial, and circumferential directions using the second positioning structure 34, the second hook structure 32, and the limiting structure 41. This ensures stable installation of the low-field side cladding 21 and the high-field side cladding 22 within the vacuum chamber 1, and the structure is simple and does not require excessive internal space. The polar, radial, and circumferential directions are as follows: Figure 1 The direction shown.

[0062] In some embodiments, the first hook structure 31 is disposed on the top of the low-field side cladding 21, and the first positioning structure 33 is disposed on the bottom of the low-field side cladding 21. For example, the first hook portion 311 can be fixed to the top of the low-field side cladding 21, while the first hook seat 312 is disposed on the top of the vacuum chamber 1, so that the first hook portion 311 and the first hook seat 312 are engaged at the top of the low-field side cladding 21; and, for example, the positioning post 331 can be disposed at the bottom of the low-field side cladding 21 and protrude downwards, while the positioning groove 332 is disposed at the bottom of the vacuum chamber 1 and opens upwards, so that the positioning post 331 and the positioning groove 332 are inserted and positioned at the bottom of the low-field side cladding 21, thereby achieving bottom positioning support, and the slot-type positioning engagement has a simple structure and is easy to implement.

[0063] In actual design, each low-field side cladding 21 can be provided with a set of first hook structures 31 and a set of first positioning structures 33 to realize the hooking and positioning of the low-field side cladding 21 with the vacuum chamber 1 respectively, so as to realize the structural installation.

[0064] And / or, in some embodiments, the second hook structure 32 is in multiple groups, and the multiple groups of second hook structures 32 are distributed at intervals along the polar direction on the high field side cladding 22, so that the second hook structure 32 can be set to two groups, three groups or more groups, that is, the number of second hook structures 32 can be flexibly set.

[0065] Specifically, such as Figure 14 and Figure 15 As shown, the second hook structure 32 can be set into two sets, and the two sets of second hook structures 32 are distributed separately along the polar direction, so that the high field side cladding 22 is hung in the vacuum chamber 1 through the two sets of second hook structures 32 to achieve the hanging and fixing.

[0066] And / or, in some embodiments, there are multiple sets of second positioning structures 34, and the multiple sets of second positioning structures 34 are distributed at intervals along the polar direction on the high-field side cladding 22. That is, the second positioning structures 34 can be set to two sets, three sets or more sets, that is, the number of second positioning structures 34 can be flexibly set.

[0067] Specifically, such as Figure 14 and Figure 15 As shown, the second positioning structure 34 can be configured as three sets, and the three sets of second positioning structures 34 are distributed at intervals along the polar direction, so that the high-field side cladding 22 is positioned and engaged with the inner wall of the vacuum chamber 1 through the three sets of second positioning structures 34, thereby achieving hook fixation. Thus, when the high-field side cladding 22 is fixed in the vacuum chamber 1 through two sets of second hook structures 32 and three sets of second positioning structures 34, multi-point support installation of the high-field side cladding 22 can be achieved, improving structural stability.

[0068] The present invention also proposes a nuclear fusion device.

[0069] The nuclear fusion device according to the present invention includes a breeding blanket assembly 100 of the nuclear fusion device of any of the above embodiments. By installing the low-field side blanket 21 and the high-field side blanket 22 in the vacuum chamber 1 in a combination of hanging and positioning, the number of structural components required to support and fix the low-field side blanket 21 and the high-field side blanket 22 can be reduced, the installation cost can be reduced, and the space occupied by the structural components required for support and fixation in the vacuum chamber 1 can be reduced, the installation difficulty can be reduced, and the installation of the hanging and positioning combination is simple and facilitates maintenance by remote control operation.

[0070] The low-field side cladding 21 is supported by a multi-point structure consisting of a first hook structure 31, a first positioning structure 33, and a limiting structure 41. This multi-point structure restricts the degrees of freedom of the low-field side cladding 21 in the polar, radial, and circumferential directions, preventing it from tipping over due to gravity or electromagnetic forces. Similarly, the high-field side cladding 22 is supported by a multi-point structure consisting of a second hook structure 32, a second positioning structure 34, and a limiting structure 41. This multi-point structure constrains the high-field side cladding 22 in the polar, circumferential, and radial directions. The disc spring provides flexible support, suppressing significant thermal deformation of the high-field side cladding 22 and preventing it from detaching from the inner wall of the vacuum chamber 1 during operation.

[0071] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0072] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A breeding blanket assembly (100) for a nuclear fusion device, characterized in that, include: Vacuum chamber (1); The low-field side cladding (21) and the high-field side cladding (22) are provided. The low-field side cladding (21) is hung in the vacuum chamber (1) by a first hook structure (31) and the low-field side cladding (21) is positioned and engaged with the inner wall of the vacuum chamber (1). The high-field side cladding (22) is hung in the vacuum chamber (1) by a second hook structure (32) and the high-field side cladding (22) is positioned and engaged with the inner wall of the vacuum chamber (1). It also includes a limiting structure (41) installed in the vacuum chamber (1), at least a portion of the limiting structure (41) being limited between the high field side cladding (22) and the low field side cladding (21); The limiting structure (41) is used to radially limit the high-field side cladding (22) and the low-field side cladding (21) respectively; The low-field side cladding (21) and the inner wall of the vacuum chamber (1) are positioned and engaged by at least one set of first positioning structures (33), the first positioning structure (33) including a positioning post (331) and a positioning groove (332) for insertion and positioning engagement; And / or, the high field side cladding (22) and the inner wall of the vacuum chamber (1) are positioned and engaged by at least one set of second positioning structures (34), the second positioning structures (34) including a positioning spline (341) and a positioning keyway (342) for insertion positioning engagement.

2. The breeding blanket assembly (100) of the nuclear fusion device according to claim 1, characterized in that, The first hook structure (31) includes a first hook part (311) and a first hook seat (312). The first hook part (311) is disposed on the low field side cladding (21), and the first hook seat (312) is disposed on the inner wall of the vacuum chamber (1). The first hook part (311) is hooked to the first hook seat (312). And / or, the second hook structure (32) includes a second hook portion (321) and a second hook seat (322), the second hook portion (321) is disposed on the high field side cladding (22), the second hook seat (322) is disposed on the inner wall of the vacuum chamber (1), and the second hook portion (321) is hooked to the second hook seat (322).

3. The breeding blanket assembly (100) of the nuclear fusion device according to claim 2, characterized in that, The first hook portion (311), the first hook seat (312) and the low field side cladding (21) are all multiple sets and correspond one-to-one with each other. The limiting structure (41) is used to radially limit the multiple low field side claddings (21) respectively. And / or, the second hook portion (321), the second hook seat (322) and the high field side cladding (22) are all multiple sets and correspond to each other, and the limiting structure (41) is used to radially limit the multiple high field side claddings (22) respectively.

4. The breeding blanket assembly (100) of the nuclear fusion device according to claim 3, characterized in that, There are three first hook seats (312) and three first hook parts (311), and the three first hook seats (312) are arranged sequentially in a circumferential direction; In the ring direction, the two first hook seats (312) located at both ends are fixedly connected to the inner wall of the vacuum chamber (1), and the first hook seat (312) located in the middle is detachably connected to the two first hook seats (312) located at both ends through the first connector (51).

5. The breeding blanket assembly (100) of the nuclear fusion device according to claim 4, characterized in that, The limiting structure (41) includes three limiting blocks (411), which are arranged sequentially along the circumferential direction and are distributed in a one-to-one correspondence with the three first hook portions (311); In the ring direction, the two limiting blocks (411) at both ends are detachably connected to the inner wall of the vacuum chamber (1) through the second connector (52), and the limiting block (411) in the middle is detachably connected to the two limiting blocks (411) at both ends through the third connector (53).

6. The breeding blanket assembly (100) of the nuclear fusion device according to claim 2, characterized in that, The second hook structure (32) further includes an elastic preload member (35), which elastically presses against the second hook portion (321) and is used to apply an elastic force to the second hook portion (321) to preload toward the second hook seat (322).

7. The breeding blanket assembly (100) of the nuclear fusion device according to claim 1, characterized in that, The first hook structure (31) is located at the top of the low field side cladding (21), and the first positioning structure (33) is located at the bottom of the low field side cladding (21). And / or, the second hook structure (32) is in multiple sets, and the multiple sets of the second hook structure (32) are distributed at intervals along the polar direction in the high field side cladding (22); And / or, the second positioning structure (34) is in multiple sets, and the multiple sets of the second positioning structure (34) are distributed at intervals along the polar direction in the high field side cladding (22).

8. A nuclear fusion device, characterized in that, The nucleation blanket assembly (100) of the nuclear fusion device according to any one of claims 1-7.

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