Assembly method of nuclear fusion device preassembled assembly and installation method of nuclear fusion device

Abstract

The invention relates to the technical field of Tokamak nuclear fusion, and discloses an assembling method of a pre-assembled assembly of a nuclear fusion device and an installing method of the nuclear fusion device. The pre-assembled assembly comprises a vacuum chamber, a window neck tube in the vacuum chamber, a vacuum chamber cold shield and a TF magnet; the assembling method of the nuclear fusion device preassembled assembly comprises the following steps: supporting between a cold shield inner sector and a vacuum chamber through a first tool; a first tool is supported between the cold shield outer sector and the vacuum chamber; the TF magnet is connected with the middle window position of the vacuum chamber through a second tool, the upper arc-shaped section of the outer fan section of the cold shield is connected with the hoisting tool of the TF magnet through a third tool, and the lower window section of the outer fan section of the cold shield is connected with the second tool; and the middle window section and the annular field magnet supporting seat are connected through a fourth tool. According to the assembling method of the nuclear fusion device pre-assembled assembly, interference among installation of the vacuum chamber, the window neck tube in the vacuum chamber, the vacuum chamber cold shield and the TF magnet can be avoided, and the stability and functionality of the pre-assembled assembly structure are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of tokamak nuclear fusion technology, and in particular to a method for assembling pre-assembled components for a nuclear fusion device and a method for installing a nuclear fusion device. Background Technology

[0002] Currently, energy is one of the most critical issues that humanity must address in its development, and it is also the root cause of competition and conflict among nations. Nuclear fusion, as a new type of highly efficient and clean energy source, is widely considered the ultimate solution to humanity's energy problems. Therefore, controlled nuclear fusion is an important area of ​​research and exploration actively pursued by countries around the world. Controlled nuclear fusion utilizes a fusion device called a tokamak to magnetically confine high-temperature plasma, causing the plasma to undergo a fusion reaction in a vacuum chamber, releasing enormous amounts of energy, which is then converted and ultimately used by humanity.

[0003] In the construction of a tokamak fusion device, the correct installation of the main unit is fundamental to its operation and maintenance. During operation, the vacuum chamber cold shield, a crucial component, is essential for preventing the TF magnet (superconducting magnet) from losing quench. However, the segmented and sector-based design of the vacuum chamber cold shield necessitates different fixing methods at different installation stages. Therefore, preventing interference between the vacuum chamber cold shield and other components, ensuring the cold shield assembly meets design requirements, and ultimately achieving proper closure of the cold shield have become pressing issues that need to be addressed. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide an assembly method for pre-assembled components of a nuclear fusion device, which can avoid interference between the vacuum chamber, the vacuum chamber cold shield, and the TF magnet during installation, and facilitate the closure of the vacuum chamber cold shield.

[0005] The present invention also aims to provide an installation method for a nuclear fusion device, which applies the above-described assembly method for pre-assembled components of a nuclear fusion device.

[0006] According to an embodiment of the present invention, an assembly method for a pre-assembled component of a nuclear fusion device includes a vacuum chamber, a window neck tube within the vacuum chamber, a cold screen within the vacuum chamber, and a TF magnet. The cold screen includes an inner sector, an outer sector, and a central window segment. The assembly method includes: suspending the inner sector of the cold screen to the high-field side of the vacuum chamber, supporting it between the inner sector and the vacuum chamber using a first fixture to maintain a gap between them; suspending the outer sector of the cold screen to the low-field side of the vacuum chamber, supporting it between the outer sector and the vacuum chamber using the first fixture to maintain a gap between them; and simultaneously connecting the outer sector and the inner sector. Assemble the vacuum chamber cold screen; hoist the TF magnet to the outside of the vacuum chamber cold screen, connect the TF magnet and the middle window position of the vacuum chamber through a second tooling, connect the upper arc segment of the outer fan section of the cold screen and the hoisting tool of the TF magnet through a third tooling, and connect the lower window segment of the outer fan section of the cold screen and the second tooling through the third tooling to maintain the gap between the vacuum chamber cold screen and the TF magnet; connect the neck tube of the middle window of the vacuum chamber to the vacuum chamber, and fit the middle window segment on the outside of the neck tube of the middle window of the vacuum chamber and connect it to the outer fan section of the cold screen, connect the middle window segment and the annular field magnet support base through a fourth tooling, so that the annular field magnet support base supports the middle window segment in the vertical direction.

[0007] According to the assembly method of the pre-assembled components of the nuclear fusion device according to the embodiments of the present invention, the vacuum chamber, the vacuum chamber cold screen, and the TF magnet can be well fixed together during the sequential assembly process by using the first tooling, the second tooling, the third tooling, and the fourth tooling. During the assembly process, a certain gap is maintained between the components to avoid interference between the components, ensure the stability and functionality of the vacuum chamber cold screen, and thus prevent the TF magnet from losing quench. This can improve the installation reliability of the pre-assembled components and facilitate the closing of the vacuum chamber cold screen.

[0008] In some embodiments of the present invention, the step of supporting the cold screen inner sector segment and the vacuum chamber by means of the first tooling includes: setting a plurality of first toolings between the two sides of the width direction of the cold screen inner sector segment and the vacuum chamber, wherein the plurality of first toolings are spaced apart along the height direction of the cold screen inner sector segment.

[0009] In some embodiments of the present invention, the step of supporting the outer sector of the cold screen and the vacuum chamber by the first fixture includes: setting a plurality of the first fixtures between the upper arcuate section of the outer sector of the cold screen on both sides in the width direction and the vacuum chamber; setting a plurality of the first fixtures between the lower arcuate section of the outer sector of the cold screen on both sides in the width direction and the vacuum chamber; setting a plurality of the first fixtures between the outer arcuate section of the outer sector of the cold screen on both sides in the width direction and the vacuum chamber; and setting a plurality of the first fixtures between the upper window and the middle window position of the outer sector of the cold screen and the vacuum chamber.

[0010] In some embodiments of the present invention, the step of connecting the upper arc segment of the outer fan section of the cold screen and the hoisting fixture of the TF magnet by means of a third fixture includes: setting a third fixture between the two sides of the upper arc segment of the outer fan section of the cold screen in the width direction and between the hoisting fixture of the TF magnet; setting a third fixture between the window position of the upper arc segment of the outer fan section of the cold screen and the hoisting fixture of the TF magnet.

[0011] In some embodiments of the present invention, the step of connecting the lower window segment of the outer fan segment of the cold screen and the second tooling through the third tooling includes: setting the third tooling between the two sides of the lower window segment of the outer fan segment of the cold screen in the width direction and between the second tooling.

[0012] In some embodiments of the invention, the third tooling is configured to have an adjustable stretch length.

[0013] In some embodiments of the present invention, the assembly method of the pre-assembled components of the nuclear fusion device further includes: measuring the gap between the vacuum chamber cold screen and the TF magnet, and adjusting the length of the third tooling.

[0014] In some embodiments of the present invention, the step of connecting the middle window segment and the annular field magnet support by means of a fourth tooling includes: setting a fourth tooling between the two sides of the middle window segment in the width direction and the annular field magnet support.

[0015] In some embodiments of the invention, the fourth tooling is configured to have an adjustable stretch length.

[0016] According to an embodiment of the present invention, the installation method of a nuclear fusion device includes a plurality of pre-assembled components, which are spliced ​​together in a ring structure along the circumferential direction. The installation method of the nuclear fusion device includes: assembling the plurality of pre-assembled components using an assembly method for the pre-assembled components of the nuclear fusion device according to any one of the preceding claims, and hoisting the plurality of pre-assembled components to the main hall; removing the first tooling on both sides of the width direction of the pre-assembled components; and splicing the plurality of pre-assembled components into a ring structure.

[0017] According to the installation method of the nuclear fusion device of the present invention, multiple pre-assembled components are assembled by using the assembly method of pre-assembled components of the nuclear fusion device, and the multiple pre-assembled components are hoisted to the main hall; the first tooling on both sides of the width direction of the pre-assembled components is removed; the multiple pre-assembled components are spliced ​​into a ring structure. In this way, good gaps are ensured between the vacuum chamber, the vacuum chamber cold screen and the TF magnet during the splicing of multiple pre-assembled components into a ring structure, effectively preventing mutual contact between the vacuum chamber, the vacuum chamber cold screen and the TF magnet, thereby improving the installation reliability of the nuclear fusion device.

[0018] 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

[0019] 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 structure of the vacuum chamber cold shield and vacuum chamber assembly provided in some embodiments of the present invention; Figure 2 for Figure 1 A magnified view of a portion of point I; Figure 3 A front view of the vacuum chamber cold shield and TF magnet assembly provided in some embodiments of the present invention; Figure 4 A right view of the vacuum chamber cold shield and TF magnet assembly provided for some embodiments of the present invention; Figure 5 for Figure 4 A sectional view taken along direction AA; Figure 6 Schematic diagrams of the mid-window segment assembly provided in some embodiments of the present invention; Figure 7 This is a schematic diagram of the structure of the third tooling in some embodiments of the present invention; Figure 8 This is a structural framework of the assembly method for pre-assembled components of a nuclear fusion device according to some embodiments of the present invention. Figure 1 ; Figure 9 This is a structural framework of the assembly method for pre-assembled components of a nuclear fusion device according to some embodiments of the present invention. Figure 2 ; Figure 10 This is a structural framework of the assembly method for pre-assembled components of a nuclear fusion device according to some embodiments of the present invention. Figure 3 ; Figure 11 This is a top view of the vacuum chamber cold shield, the middle window section, and the fourth tooling used in some embodiments of the present invention. Figure 12 This is a flowchart illustrating the installation method of a nuclear fusion device according to some embodiments of the present invention.

[0020] Figure label: 100. Pre-installed components; 10. Vacuum chamber; 10a. High-field side; 10b. Low-field side; 20. TF magnet; 30. Vacuum chamber cold shield; 31. Cold screen inner sector segment; 32. Cold screen outer sector segment; 321. Upper arc segment; 322. Lower arc segment; 323. Outer arc segment; 324. Upper window; 325. Middle window position; 326. Lower window segment; 33. Middle window segment; 200, First tooling; 300, Second tooling; 400, Third tooling; 401, Sleeve; 402, First screw; 403, Second screw; 404, First connecting seat; 405, Second connecting seat; 500, Fourth tooling; 600, Lifting tooling. Detailed Implementation

[0021] 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.

[0022] 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" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this 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. Therefore, they should not be construed as limitations on this invention.

[0023] Furthermore, features specified as "first" or "second" may explicitly or implicitly include one or more of the same feature, used to distinguish and describe features, without any order or distinction of importance.

[0024] In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0025] 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.

[0026] The following is for reference. Figures 1-11 This invention describes a method for assembling pre-assembled components of a nuclear fusion device according to an embodiment of the present invention.

[0027] like Figures 1 to 11 As shown, the assembly method of the pre-assembled components of the nuclear fusion device according to an embodiment of the present invention includes a pre-assembled component 100 comprising a vacuum chamber 10, a window neck tube in the vacuum chamber, a vacuum chamber cold screen 30, and a TF magnet 20. The vacuum chamber cold screen 30 includes an inner sector 31, an outer sector 32, and a middle window segment 33. The assembly method of the pre-assembled components of the nuclear fusion device includes: Step S1: Hoist the cold screen inner sector segment 31 to the high field side 10a of the vacuum chamber 10, and support it between the cold screen inner sector segment 31 and the vacuum chamber 10 using the first fixture 200 to maintain the gap between the cold screen inner sector segment 31 and the vacuum chamber 10 (see reference). Figure 1 and Figure 2 The first fixture 200 can adjust the distance between the cold screen inner segment 31 and the vacuum chamber 10, thereby adjusting the gap between the cold screen inner segment 31 and the vacuum chamber 10 and preventing damage caused by mutual collision. The structure and operation of the first fixture 200 can be referred to the support device in patent application number 202511069839.5, and will not be described in detail here.

[0028] Step S2: Hoist the outer fan segment 32 of the cold screen to the low field side 10b of the vacuum chamber 10, and support it between the outer fan segment 32 and the vacuum chamber 10 using the first tooling 200 to maintain the gap between the outer fan segment 32 and the vacuum chamber 10. At the same time, connect the outer fan segment 32 and the inner fan segment 31 of the cold screen to assemble the vacuum chamber cold screen 30 (see reference). Figure 1 and Figure 2 Similarly, the first tooling 200 can adjust the outer fan section 32 of the cold screen to move closer to or further away from the vacuum chamber 10, so as to adjust the gap between the outer fan section 32 of the cold screen and the vacuum chamber 10, and prevent the inner fan section 31 of the cold screen and the vacuum chamber 10 from colliding with each other and causing damage.

[0029] Step S3: Hoist the TF magnet 20 onto the outside of the vacuum chamber cold shield 30. Connect the TF magnet 20 and the middle window position 325 of the vacuum chamber 10 through the second fixture 300. Connect the upper arc section 321 of the outer fan section 32 of the cold shield and the hoisting fixture 600 of the TF magnet 20 through the third fixture 400. Connect the lower window section 326 of the outer fan section 32 of the cold shield and the second fixture 300 through the third fixture 400 to maintain the gap between the vacuum chamber cold shield 30 and the TF magnet 20 (see...). Figure 3 ).

[0030] The third tooling 400 can adjust the vacuum chamber cold screen 30 to move closer to or further away from the TF magnet 20, so as to maintain the gap between the vacuum chamber cold screen 30 and the TF magnet 20, avoid interference between the vacuum chamber cold screen 30 and other components, and prevent the TF magnet 20 from losing quench.

[0031] The structure and operation of the second tooling 300 in the above steps can be referenced to the fixing device for nuclear fusion pre-assembly components in patent application number 202511089790.X, and will not be repeated here. The third tooling 400 can refer to a tooling mechanism that provides tensioning; exemplarily, the third tooling 400 can be a turnbuckle. The two ends of the third tooling 400 can be connected to corresponding components, thereby maintaining the gap between the vacuum chamber cold shield 30 and the TF magnet 20. (Refer to...) Figure 7 When the third tooling 400 is a turnbuckle, it may include a sleeve 401, a first screw 402, a second screw 403, a first connecting seat 404, and a second connecting seat 405. The first screw 402 is screwed to the sleeve 401 and hinged to the first connecting seat 404. The second screw 403 is screwed to the sleeve 401 and hinged to the second connecting seat 405. The first connecting seat 404 and the second connecting seat 405 are used to connect corresponding components.

[0032] Step S4: Connect the window neck tube in the vacuum chamber to the vacuum chamber 10, and fit the middle window segment 33 onto the outside of the window neck tube in the vacuum chamber and connect it to the outer fan segment 32 of the cold screen. Connect the middle window segment 33 and the ring field magnet support base through the fourth fixture 500 so that the ring field magnet support base supports the middle window segment 33 in the vertical direction. The structure of the fourth fixture 500 can refer to the third fixture 400, and will not be described in detail here.

[0033] Please refer to Figure 6 The window neck tube (not shown in the figure) in the vacuum chamber can refer to a component located within the middle window section 33 and connected to the vacuum chamber 10. The annular field magnet support can be a component (not shown in the figure) disposed above the middle window section 33, and the annular field magnet support is a support component used to fix the TF magnet 20.

[0034] According to the assembly method of the pre-assembled components of the nuclear fusion device according to the embodiments of the present invention, the vacuum chamber 10, the vacuum chamber cold screen 30, and the TF magnet 20 can be well fixed together during the sequential assembly process by using the first tooling 200, the second tooling 300, the third tooling 400, and the fourth tooling 500. During the assembly process, a certain gap is maintained between the components to avoid interference between the components, ensure the stability and functionality of the vacuum chamber cold screen 30, and thus prevent the TF magnet 20 from quenching. This can improve the installation reliability of the pre-assembled components 100 and facilitate the closing of the vacuum chamber cold screen 30.

[0035] In some embodiments of the present invention, reference is made to... Figure 1 The step of supporting the cold screen inner sector 31 and the vacuum chamber 10 by the first tooling 200 includes: setting multiple first tooling 200s on both sides of the width direction of the cold screen inner sector 31 and between the vacuum chamber 10, and the multiple first tooling 200s are spaced apart along the height direction of the cold screen inner sector 31.

[0036] The number of the first fixture 200 can be, but is not limited to, two, three, four, five, six, seven, eight, etc. The width direction of the cold screen inner sector 31 can be referenced. Figure 1 and Figure 3 The left and right directions. The height direction of the inner fan segment 31 of the cold screen can be referenced. Figure 1 and Figure 3 The up and down directions.

[0037] In the above technical solution, the arrangement of multiple first tooling 200 can prevent the cold screen sector 31 or vacuum chamber 10 from drooping or tilting due to gravity, so that the gap between the cold screen sector 31 and vacuum chamber 10 remains uniform, thereby avoiding interference between the cold screen sector 31 and vacuum chamber 10 and ensuring the reliability of the vacuum chamber cold screen 30.

[0038] In some embodiments of the present invention, reference is made to... Figure 1 , Figure 3 and Figure 9 The step of supporting the outer fan section 32 of the cold screen and the vacuum chamber 10 by the first tooling 200 includes: Multiple first tooling 200s are provided on both sides of the upper arc segment 321 of the outer fan segment 32 of the cold screen and between the vacuum chamber 10. Multiple first tooling 200s are provided on both sides of the width direction of the lower arc segment 322 of the outer fan segment 32 of the cold screen and between the vacuum chamber 10. Multiple first tooling 200s are provided on both sides of the width direction of the outer arc section 323 of the outer fan section 32 of the cold screen and between the vacuum chamber 10. Multiple first tooling 200s are provided between the upper window 324 and the middle window position 325 of the outer sector 32 of the cold screen and the vacuum chamber 10.

[0039] For example, refer to Figure 1 Six first tooling fixtures 200 are provided between the upper arc segment 321 of the outer fan segment 32 of the cold screen and the vacuum chamber 10 on both sides of the width direction. Nine first tooling fixtures 200 are provided between the lower arc segment 322 of the outer fan segment 32 of the cold screen and the vacuum chamber 10 on both sides of the width direction. Four first tooling fixtures 200 are provided between the outer arc segment 323 of the outer fan segment 32 of the cold screen and the vacuum chamber 10 on both sides of the width direction. Four first tooling fixtures 200 are provided between the upper window 324 and the middle window position 325 of the outer fan segment 32 of the cold screen and the vacuum chamber 10.

[0040] In the above technical solution, by setting multiple first tooling 200 between the upper arc segment 321, lower arc segment 322, outer arc segment 323, upper window 324 and middle window position 325 of the outer fan segment 32 of the cold screen and the vacuum chamber 10, a certain gap can be maintained between each part of the outer fan segment 32 of the cold screen and the vacuum chamber 10, thereby improving the relative positional accuracy between each part of the outer fan segment 32 of the cold screen and the vacuum chamber 10, further avoiding interference between the outer fan segment 32 of the cold screen and the vacuum chamber 10, and ensuring the reliability of the pre-assembled component 100.

[0041] In some embodiments of the present invention, reference is made to... Figure 3 , Figure 5 and Figure 10 The steps of connecting the upper arc segment 321 of the outer fan section 32 of the cold screen and the hoisting fixture of the TF magnet 20 through the third fixture 400 include: A third fixture 400 is set between the upper arc segment 321 of the outer fan segment 32 of the cold screen and the hoisting fixture of the TF magnet 20 on both sides of the width direction. A third fixture 400 is set between the window position of the upper arc segment 321 of the outer fan segment 32 of the cold screen (i.e., the upper window 324 mentioned above) and the hoisting fixture of the TF magnet 20.

[0042] In the above technical solution, the layout of the third tooling 400 can ensure that a uniform gap is formed between the upper arc segment 321 of the cold screen outer fan segment 32 and the TF magnet 20, thereby avoiding interference between the upper arc segment 321 of the cold screen outer fan segment 32 and the TF magnet 20, thus preventing the TF magnet 20 from losing its quench and improving the reliability of the pre-assembled component 100.

[0043] In some embodiments of the present invention, reference is made to... Figure 3 and Figure 5 The step of connecting the lower window segment 326 of the outer fan segment 32 of the cold screen and the second tooling 300 through the third tooling 400 includes: setting the third tooling 400 between the second tooling 300 and both sides of the lower window segment 326 of the outer fan segment 32 of the cold screen in the width direction.

[0044] In the above technical solution, the third tooling 400 can adjust the distance between the two sides of the lower window segment 326 of the cold screen outer sector segment 32 and the second tooling 300 in the width direction, so that the lower window segment 326 of the cold screen outer sector segment 32 as a whole forms a uniform gap with the TF magnet 20, avoids interference between the lower window segment 326 of the cold screen outer sector segment 32 and the TF magnet 20, further ensures the performance of the cold screen outer sector segment 32, avoids the TF magnet 20 from losing its quench, and improves the reliability of the pre-assembled component 100.

[0045] In some embodiments of the present invention, reference is made to... Figure 7 The third tooling 400 is configured with an adjustable extension length. It is understood that the third tooling 400 can be, but is not limited to, turnbuckles, rigging, etc. When the third tooling 400 is a turnbuckle, its structure is simple and easy to operate.

[0046] In the above technical solution, the third tooling 400 is configured with an adjustable stretch length, which can flexibly adjust the distance between the vacuum chamber cold screen 30 and the TF magnet 20, and can be adjusted multiple times according to the needs of the site to maintain the gap between the vacuum chamber cold screen 30 and the TF magnet 20, and ensure the installation accuracy of the pre-assembled component 100.

[0047] In some embodiments of the present invention, the assembly method of the pre-assembled components of the nuclear fusion device further includes: measuring the gap between the vacuum chamber cold shield 30 and the TF magnet 20, and adjusting the length of the third tooling 400.

[0048] In the above technical solution, by measuring the gap between the vacuum chamber cold screen 30 and the TF magnet 20, it is possible to check in a timely manner whether the gap deviates from the expected value. The length of the third tooling 400 can be adjusted according to the measurement results, and the tension can be adjusted to make slight adjustments to the gap. This ensures that the gap between the vacuum chamber cold screen 30 and the TF magnet 20 meets the design requirements during the load transfer process. Then, the vacuum chamber cold screen 30, together with the vacuum chamber 10 and the TF magnet 20, is hoisted into the main unit hall as a whole, further ensuring the reliability of the pre-installed component 100.

[0049] In some embodiments of the present invention, reference is made to... Figure 6 and Figure 11 The step of connecting the middle window segment 33 and the annular field magnet support through the fourth tooling 500 includes: setting the fourth tooling 500 between the two sides of the middle window segment 33 in the width direction and between the annular field magnet support.

[0050] In the above technical solution, by setting a fourth tooling 500 between the two sides of the width direction of the middle window segment 33 and the annular field magnet support, the middle window segment 33 can be connected to the annular field magnet support on both sides, thereby improving the support stability. Since the middle window segment 33 is connected to the outer fan segment 32 of the cold screen, the load of the vacuum chamber cold screen 30 can act on the annular field magnet support. When the vacuum chamber cold screens 30 of the two adjacent fan-shaped pre-assembled components 100 are closed, the first tooling 200 on both sides of the width direction of the vacuum chamber cold screen 30 can be removed to prevent the first tooling 200 from affecting the closure of the vacuum chamber cold screen 30. At the same time, the overall load of the vacuum chamber cold screen 30 can act on the annular field magnet support to ensure the gap between the vacuum chamber cold screen 30, the TF magnet 20, and the vacuum chamber 10.

[0051] When multiple pre-assembled components 100 are joined together to form a ring structure, refer to Figure 11 The width of the middle window segment 33 of multiple pre-assembled components 100 is supported on both sides of the annular field magnet support by the fourth tooling 500. Multiple vacuum chamber cold screens 30 are spliced ​​in sequence, so that the annular vacuum chamber cold screen 30 can be supported on multiple annular field magnet support by multiple middle window segments 33, thereby ensuring that a certain gap is always maintained between the annular vacuum chamber cold screen 30 and the vacuum chamber 10 and TF magnet 20.

[0052] In some embodiments of the present invention, the fourth tooling 500 is configured with an adjustable extension length. The structure of the fourth tooling 500 can refer to that of the third tooling 400, for example, it can be a turnbuckle. By making the extension length of the fourth tooling 500 adjustable, the supporting force between the middle window segment 33 and the annular field magnet support can be adjusted according to the needs of the site, preventing loosening between the middle window segment 33 and the annular field magnet support, and better supporting the vacuum chamber cold screen 30 as a whole on the annular field magnet support.

[0053] refer to Figure 12 According to an embodiment of the present invention, the installation method of a nuclear fusion device includes a plurality of pre-installed components 100, which are spliced ​​together in a ring structure along the circumferential direction. The installation method of the nuclear fusion device includes: Step S201: Assemble multiple pre-assembled components 100 using the assembly method of pre-assembled components of nuclear fusion device as described in any of the embodiments above, and hoist the multiple pre-assembled components 100 to the main hall. Step S202: Remove the first tooling 200 on both sides of the width direction of the pre-assembled component 100; Step S203: Assemble multiple pre-assembled components 100 into a ring structure. During this process, the first fixture 200 between the vacuum chamber 10 and the vacuum chamber cold shield 30, and the third fixture 400 between the vacuum chamber cold shield 30 and the TF magnet 20, can be removed as needed. If the two fan-shaped vacuum chamber cold shields 30 can be stably supported on the ring field magnet support, the aforementioned fixtures can be removed. If the vacuum chamber cold shield 30 cannot be stably supported on the ring field magnet support, the next fan-shaped pre-assembled component 100 can be assembled. After verifying that the vacuum chamber cold shield 30 can be stably supported on the ring field magnet support, the option to remove the fixture from the previous pre-assembled component 100 is selected.

[0054] According to the installation method of the nuclear fusion device of the present invention, multiple pre-assembled components 100 are assembled by using the assembly method of pre-assembled components of the nuclear fusion device, and the multiple pre-assembled components 100 are hoisted to the main hall; the first tooling 200 on both sides of the width direction of the pre-assembled components 100 is removed; the multiple pre-assembled components 100 are spliced ​​into a ring structure. In this way, during the process of splicing the multiple pre-assembled components 100 into a ring structure, a good gap is ensured between the vacuum chamber 10, the vacuum chamber cold screen 30 and the TF magnet 20, effectively preventing mutual contact between the vacuum chamber 10, the vacuum chamber cold screen 30 and the TF magnet 20, thereby improving the installation reliability of the nuclear fusion device.

[0055] In the description of this specification, references to terms such as "some embodiments," "optionally," "furthermore," 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.

[0056] 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 method for assembling pre-assembled components for a nuclear fusion device, the pre-assembled components including a vacuum chamber, a window neck tube in the vacuum chamber, a vacuum chamber cold screen, and a TF magnet, wherein the vacuum chamber cold screen includes an inner sector, an outer sector, and a middle window segment, characterized in that, The assembly method of the pre-assembled components of the nuclear fusion device includes: The inner sector of the cold screen is hoisted to the high field side of the vacuum chamber and supported between the inner sector of the cold screen and the vacuum chamber by the first tooling to maintain the gap between the inner sector of the cold screen and the vacuum chamber. The outer sector of the cold screen is hoisted to the low field side of the vacuum chamber and supported between the outer sector of the cold screen and the vacuum chamber by the first tooling to maintain the gap between the outer sector of the cold screen and the vacuum chamber. At the same time, the outer sector of the cold screen and the inner sector of the cold screen are connected to assemble the vacuum chamber cold screen. The TF magnet is hoisted onto the outside of the cold screen of the vacuum chamber. The TF magnet and the middle window position of the vacuum chamber are connected by a second tooling. The upper arc section of the outer fan segment of the cold screen and the hoisting tool of the TF magnet are connected by a third tooling. The lower window section of the outer fan segment of the cold screen and the second tooling are connected by the third tooling to maintain the gap between the cold screen of the vacuum chamber and the TF magnet. The window neck tube in the vacuum chamber is connected to the vacuum chamber, and the middle window segment is fitted onto the outside of the window neck tube in the vacuum chamber and connected to the outer fan segment of the cold screen. The middle window segment and the annular field magnet support are connected by a fourth tooling so that the annular field magnet support supports the middle window segment in the vertical direction.

2. The assembly method for pre-assembled components of a nuclear fusion device according to claim 1, characterized in that, The step of supporting the cold shield between the inner sector and the vacuum chamber using the first tooling includes: Multiple first fixtures are provided between the two sides of the width direction of the inner sector of the cold screen and the vacuum chamber, and the multiple first fixtures are spaced apart along the height direction of the inner sector of the cold screen.

3. The assembly method of pre-assembled components for a nuclear fusion device according to claim 1 or 2, characterized in that, The step of supporting the outer fan section of the cold shield and the vacuum chamber with the first tooling includes: Multiple first tooling fixtures are provided between the upper arc-shaped section of the outer fan segment of the cold screen and the vacuum chamber on both sides in the width direction; Multiple first tooling fixtures are provided between the lower arc-shaped section of the outer fan segment of the cold screen and the vacuum chamber on both sides in the width direction; Multiple first tooling fixtures are provided between the two sides of the outer arc-shaped section of the outer fan-shaped section of the cold screen and the vacuum chamber; Multiple first tooling fixtures are provided between the upper and middle windows of the outer sector of the cold screen and the vacuum chamber.

4. The assembly method of pre-assembled components for a nuclear fusion device according to claim 1, characterized in that, The step of connecting the upper arc-shaped segment of the cold screen outer fan section and the TF magnet using the third tooling includes: A third fixture is provided between the upper arc-shaped section of the outer fan segment of the cold screen and the hoisting fixture of the TF magnet on both sides of the width direction; A third fixture is set between the window position of the upper arc segment of the outer fan section of the cold screen and the hoisting fixture of the TF magnet.

5. The assembly method of the pre-assembled components of the nuclear fusion device according to claim 4, characterized in that, The step of connecting the lower window segment of the outer sector of the cold screen and the second fixture through the third fixture includes: setting the third fixture between the two sides of the lower window segment of the outer sector of the cold screen in the width direction and between the second fixture.

6. The assembly method of the pre-assembled components of the nuclear fusion device according to claim 4 or 5, characterized in that, The third tooling is configured to have an adjustable stretching length.

7. The assembly method of pre-assembled components for a nuclear fusion device according to claim 6, characterized in that, The assembly method for the pre-assembled components of the nuclear fusion device also includes: Measure the gap between the vacuum chamber cold shield and the TF magnet, and adjust the length of the third tooling.

8. The method for assembling pre-assembled components of a nuclear fusion device according to any one of claims 1, 2, or 4, characterized in that, The step of connecting the middle window segment and the annular field magnet support base via the fourth tooling includes: A fourth tooling is provided between the two sides of the width direction of the middle window segment and the annular field magnet support.

9. The assembly method of the pre-assembled components of the nuclear fusion device according to claim 8, characterized in that, The fourth tooling is configured to have an adjustable stretching length.

10. A method for installing a nuclear fusion device, characterized in that, The nuclear fusion device includes multiple pre-assembled components, which are assembled into a ring structure along the circumferential direction. The installation method of the nuclear fusion device includes: Assemble a plurality of the pre-assembled components using the assembly method for the pre-assembled components of the nuclear fusion device as described in any one of claims 1 to 9, and hoist the plurality of the pre-assembled components to the main hall; Remove the first tooling from both sides of the pre-assembled component in the width direction; Multiple pre-assembled components are spliced ​​together to form a ring structure.

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