Method of assembling a nuclear fusion device pre-packaged assembly and method of installing a nuclear fusion device

Abstract

The application relates to the field of tokamak nuclear fusion technology, and discloses an assembling method of a pre-assembled assembly of a nuclear fusion device and a mounting method of the nuclear fusion device, the pre-assembled assembly comprising a vacuum chamber, a window neck pipe in the vacuum chamber, a vacuum chamber cold shield and a TF magnet, the assembling method of the pre-assembled assembly of the nuclear fusion device comprising the following steps: supporting a cold shield inner sector and the vacuum chamber through a first tool; supporting a cold shield outer sector and the vacuum chamber through the first tool; connecting a middle window position of the TF magnet and the vacuum chamber through a second tool; connecting an upper arc-shaped sector of the cold shield outer sector and a hoisting tool of the TF magnet through a third tool, and connecting a lower window sector of the cold shield outer sector and the second tool; and connecting a middle window sector and a toroidal field magnet support seat through a fourth tool. The assembling method of the pre-assembled assembly of the nuclear fusion device can avoid interference between the vacuum chamber, the window neck pipe in the vacuum chamber, the vacuum chamber cold shield and the TF magnet during mounting, and guarantees the stability and functionality of the pre-assembled assembly structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tokamak nuclear fusion, and in particular to an assembling method of a pre-assembly component of a nuclear fusion device and a mounting method of the nuclear fusion device. BACKGROUND

[0002] Nuclear fusion is widely considered as a new type of high-efficiency clean energy, and is regarded as the ultimate solution to the energy problem of mankind. Therefore, controlled nuclear fusion is an important field that is actively researched and explored by countries in the world. Controlled nuclear fusion uses a fusion device called tokamak to magnetically confine high-temperature plasma, so that the plasma occurs fusion reaction in the vacuum chamber to release huge energy, which is finally used by human beings through energy conversion.

[0003] In the construction of the tokamak fusion device, the correct installation of the device main machine is the basis for the operation and maintenance of the device. During the operation of the device, the vacuum chamber cold shield as an important component is an important part for avoiding quenching of the TF magnet (superconducting magnet). The segmented and sectorized design of the vacuum chamber cold shield leads to different fixing process methods in different installation stages of the vacuum chamber cold shield. How to avoid the interference between the vacuum chamber cold shield and other components, ensure that the vacuum chamber cold shield satisfies the design requirements, and finally realize the closing of the vacuum chamber cold shield, has become one of the problems to be solved. SUMMARY

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

[0005] The present application also aims to provide a mounting method of a nuclear fusion device to apply the above-mentioned assembling method of a pre-assembly component of a nuclear fusion device.

[0006] The assembling method of the pre-assembled assembly of the nuclear fusion device according to the embodiment of the present application, the pre-assembled assembly comprising a vacuum chamber, a window neck tube in the vacuum chamber, a vacuum chamber cold shield and a TF magnet, the vacuum chamber cold shield comprising an inner cold shield segment, an outer cold shield segment and a middle window segment, the assembling method of the pre-assembled assembly of the nuclear fusion device comprising: hoisting the inner cold shield segment to the high-field side of the vacuum chamber, supporting between the inner cold shield segment and the vacuum chamber by a first tooling to maintain the gap between the inner cold shield segment and the vacuum chamber; hoisting the outer cold shield segment to the low-field side of the vacuum chamber, supporting between the outer cold shield segment and the vacuum chamber by the first tooling to maintain the gap between the outer cold shield segment and the vacuum chamber, while connecting the outer cold shield segment and the inner cold shield segment to assemble into the vacuum chamber cold shield; hoisting the TF magnet to be sleeved outside the vacuum chamber cold shield, connecting the TF magnet and the middle window position of the vacuum chamber by a second tooling, connecting the upper arc segment of the outer cold shield segment and the hoisting tooling of the TF magnet by a third tooling, and connecting the lower window segment of the outer cold shield segment and the second tooling by the third tooling to maintain the gap between the vacuum chamber cold shield and the TF magnet; connecting the vacuum chamber middle window neck tube with the vacuum chamber, and sleeving the middle window segment outside the vacuum chamber middle window neck tube and connecting the outer cold shield segment, connecting the middle window segment and the toroidal field magnet support seat by a fourth tooling to make the toroidal field magnet support seat support the middle window segment in the up-down direction.

[0007] According to the assembling method of the pre-assembled assembly of the nuclear fusion device according to the embodiment of the present application, the vacuum chamber, the vacuum chamber cold shield and the TF magnet can be well fixed together in the process of being assembled in sequence by the first tooling, the second tooling, the third tooling and the fourth tooling, and a certain gap is maintained between the components during the assembling process, so that interference between the components is avoided, the stability and functionality of the vacuum chamber cold shield are ensured, and the loss of the TF magnet is avoided, the installation reliability of the pre-assembled assembly can be improved, and the vacuum chamber cold shield is beneficial to be folded.

[0008] In some embodiments of the present application, the step of supporting between the inner cold shield segment and the vacuum chamber by the first tooling comprises: arranging a plurality of first toolings between the inner cold shield segment and the vacuum chamber in the width direction of the inner cold shield segment, and the plurality of first toolings are arranged in the height direction of the inner cold shield segment.

[0009] In some embodiments of the present application, the step of supporting the cold shield outer sector and the vacuum chamber by the first tooling comprises: arranging a plurality of the first tooling between the two sides of the upper arc segment of the cold shield outer sector in the width direction and the vacuum chamber; arranging a plurality of the first tooling between the two sides of the lower arc segment of the cold shield outer sector in the width direction and the vacuum chamber; arranging a plurality of the first tooling between the two sides of the outer arc segment of the cold shield outer sector in the width direction and the vacuum chamber; and arranging a plurality of the first tooling between the upper window and the middle window of the cold shield outer sector and the vacuum chamber.

[0010] In some embodiments of the present application, the step of connecting the upper arc segment of the cold shield outer sector and the hoisting tooling of the TF magnet by the third tooling comprises: arranging the third tooling between the two sides of the upper arc segment of the cold shield outer sector in the width direction and the hoisting tooling of the TF magnet; and arranging the third tooling between the window position of the upper arc segment of the cold shield outer sector and the hoisting tooling of the TF magnet.

[0011] In some embodiments of the present application, the step of connecting the lower window segment of the cold shield outer sector and the second tooling by the third tooling comprises: arranging the third tooling between the two sides of the lower window segment of the cold shield outer sector in the width direction and the second tooling.

[0012] In some embodiments of the present application, the third tooling is configured to have adjustable length in tension.

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

[0014] In some embodiments of the present application, the step of connecting the middle window segment and the toroidal field magnet support seat by the fourth tooling comprises: arranging the fourth tooling between the two sides of the middle window segment in the width direction and the toroidal field magnet support seat.

[0015] In some embodiments of the present application, the fourth tooling is configured to have adjustable length in tension.

[0016] According to the installation method of the nuclear fusion device, the nuclear fusion device comprises a plurality of pre-assembled components, and the plurality of pre-assembled components are spliced into a ring-shaped structure in the circumferential direction. The installation method of the nuclear fusion device comprises: assembling the plurality of pre-assembled components by the assembly method of the nuclear fusion device pre-assembled component of any one of the preceding embodiments, and hoisting the plurality of pre-assembled components to a main hall; removing the first tooling on the two sides of the pre-assembled component in the width direction; and splicing the plurality of pre-assembled components into a ring-shaped 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:

[0020] 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;

[0021] Figure 2 for Figure 1 A magnified view of a portion of point I;

[0022] Figure 3 A front view of the vacuum chamber cold shield and TF magnet assembly provided in some embodiments of the present invention;

[0023] Figure 4 A right view of the vacuum chamber cold shield and TF magnet assembly provided for some embodiments of the present invention;

[0024] Figure 5 for Figure 4 A sectional view taken along direction AA;

[0025] Figure 6 Schematic diagrams of the mid-window segment assembly provided in some embodiments of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the third tooling in some embodiments of the present invention;

[0027] 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 ;

[0028] 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 ;

[0029] Figure 10 is a structural block of an assembling method of a preassembly of a nuclear fusion device according to some embodiments of the present application Figure 3 ;

[0030] Figure 11 is a top view of a fourth tool used in combination with a vacuum chamber cold shield and a middle window segment according to some embodiments of the present application

[0031] Figure 12 is a flow chart of a method of installing a nuclear fusion device according to some embodiments of the present application

[0032] Reference Signs:

[0033] 100, preassembly

[0034] 10, vacuum chamber; 10a, high-field side; 10b, low-field side

[0035] 20, TF magnet

[0036] 30, vacuum chamber cold shield

[0037] 31, cold shield inner sector; 32, cold shield outer sector; 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

[0038] 200, first tool; 300, second tool; 400, third tool; 401, sleeve; 402, first screw; 403, second screw; 404, first connecting seat; 405, second connecting seat; 500, fourth tool; 600, hoisting tool DETAILED DESCRIPTION

[0039] Embodiments of the present application are described in detail below with reference to the attached drawings, which show by way of example, embodiments in which like numerals indicate like elements or components, and in which:

[0040] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0041] In addition, the features defined as "first", "second" can explicitly or implicitly include one or more of the features for distinguishing the features, without order and without difference.

[0042] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0043] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting" and "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] The assembly method of the nuclear fusion device preassembly assembly of the embodiment of the present application will be described below with reference to Figures 1-11 .

[0045] As shown in Figures 1-11 , the assembly method of the nuclear fusion device preassembly assembly of the embodiment of the present application, the preassembly assembly 100 includes a vacuum chamber 10, a window neck pipe in the vacuum chamber, a vacuum chamber cold screen 30 and a TF magnet 20, the vacuum chamber cold screen 30 includes a cold screen inner sector 31, a cold screen outer sector 32 and a middle window sector 33, and the assembly method of the nuclear fusion device preassembly assembly includes:

[0046] Step S1, hoist the cold screen inner sector 31 to the high field side 10a of the vacuum chamber 10, and support between the cold screen inner sector 31 and the vacuum chamber 10 by the first tooling 200 to maintain the gap between the cold screen inner sector 31 and the vacuum chamber 10 (refer to Figure 1 and Figure 2 ). Wherein, the first tooling 200 can adjust the cold screen inner sector 31 to approach or away from the vacuum chamber 10, so as to adjust the gap between the cold screen inner sector 31 and the vacuum chamber 10, to prevent the cold screen inner sector 31 and the vacuum chamber 10 from colliding with each other to cause damage. The structure and operation of the first tooling 200 can refer to the supporting device of patent application No. 202511069839.5, which will not be described here.

[0047] Step S2, hoist the cold screen outer sector 32 to the low field side 10b of the vacuum chamber 10, and support between the cold screen outer sector 32 and the vacuum chamber 10 by the first tooling 200 to maintain the gap between the cold screen outer sector 32 and the vacuum chamber 10, and connect the cold screen outer sector 32 and the cold screen inner sector 31 to assemble the vacuum chamber cold screen 30 (refer to Figure 1 and Figure 2). Similarly, the first tool 200 can adjust the cold shield outer sector 32 to be close to or away from the vacuum chamber 10 to adjust the gap between the cold shield outer sector 32 and the vacuum chamber 10, so as to prevent the cold shield inner sector 31 and the vacuum chamber 10 from colliding with each other to cause damage.

[0048] Step S3, hoist the TF magnet 20 to 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 tool 300, connect the upper arc segment 321 of the cold shield outer sector 32 and the hoisting tool 600 of the TF magnet 20 through the third tool 400, and connect the lower window segment 326 of the cold shield outer sector 32 and the second tool 300 through the third tool 400, so as to maintain the gap between the vacuum chamber cold shield 30 and the TF magnet 20 (see Figure 3 ).

[0049] The third tool 400 can adjust the vacuum chamber cold shield 30 to be close to or away from the TF magnet 20 to maintain the gap between the vacuum chamber cold shield 30 and the TF magnet 20, avoid interference between the vacuum chamber cold shield 30 and other components, and avoid the TF magnet 20 losing superconductivity.

[0050] The structure and operation of the second tool 300 in the above steps can refer to the fixing device of the nuclear fusion pre-assembly assembly in patent application No. 202511089790.X, which will not be described here. The third tool 400 can be a tool mechanism that can play a tensioning role. For example, the third tool 400 can be a basket bolt, and the two ends of the third tool 400 can be connected to corresponding components, so as to maintain the gap between the vacuum chamber cold shield 30 and the TF magnet 20. For reference Figure 7 , when the third tool 400 is a basket bolt, it can include a sleeve 401, a first screw rod 402, a second screw rod 403, a first connecting seat 404, and a second connecting seat 405. The first screw rod 402 is screwed with the sleeve 401 and connected with the first connecting seat 404 through a hinge. The second screw rod 403 is screwed with the sleeve 401 and connected with the second connecting seat 405 through a hinge. The first connecting seat 404 and the second connecting seat 405 are used to connect corresponding components.

[0051] Step S4, connect the vacuum chamber middle window neck pipe with the vacuum chamber 10, and connect the middle window segment 33 outside the vacuum chamber middle window neck pipe and the cold shield outer sector 32, and connect the middle window segment 33 and the toroidal field magnet support seat through the fourth tool 500, so that the toroidal field magnet support seat supports the middle window segment 33 in the up-down direction. The structure of the fourth tool 500 can refer to the third tool 400, which will not be described here.

[0052] Please refer to Figure 6The window neck pipe (not shown in the figure) in the vacuum chamber can refer to a component located in the middle window section 33 and connected with the vacuum chamber 10. The toroidal field magnet support seat can be a component (not shown in the figure) arranged above the middle window section 33, and the toroidal field magnet support seat is used to fix the support component of the TF magnet 20.

[0053] According to the assembly method of the pre-assembly component of the nuclear fusion device, the vacuum chamber 10, the vacuum chamber cold screen 30 and the TF magnet 20 can be well fixed together in the sequential assembly process by the first tooling 200, the second tooling 300, the third tooling 400 and the fourth tooling 500, and a certain gap is maintained between the components during the assembly process, so that interference between the components is avoided, the stability and functionality of the vacuum chamber cold screen 30 are ensured, and then the TF magnet 20 is prevented from losing superconductivity, the installation reliability of the pre-assembly component 100 can be improved, and the folding of the vacuum chamber cold screen 30 is facilitated.

[0054] In some embodiments of the present application, with reference to Figure 1 , the step of supporting the cold screen inner sector 31 and the vacuum chamber 10 by the first tooling 200 includes: arranging a plurality of first toolings 200 between the two sides of the width direction of the cold screen inner sector 31 and the vacuum chamber 10, and the plurality of first toolings 200 are arranged in the height direction of the cold screen inner sector 31.

[0055] The number of first toolings 200 can be, but is not limited to, two, three, four, five, six, seven, eight, and the like. The width direction of the cold screen inner sector 31 can refer to the left-right direction of Figure 1 and Figure 3 . The height direction of the cold screen inner sector 31 can refer to the up-down direction of Figure 1 and Figure 3 .

[0056] In the above technical solution, the arrangement of the plurality of first toolings 200 can prevent the cold screen inner sector 31 or the vacuum chamber 10 from sagging or laterally tilting due to gravity, so that the gap between the cold screen inner sector 31 and the vacuum chamber 10 is kept uniform, and then interference between the cold screen inner sector 31 and the vacuum chamber 10 is avoided, and the reliability of the vacuum chamber cold screen 30 is ensured.

[0057] In some embodiments of the present application, with reference to Figure 1 , Figure 3 and Figure 9 , the step of supporting the cold screen outer sector 32 and the vacuum chamber 10 by the first tooling 200 includes:

[0058] arranging a plurality of first toolings 200 between the two sides of the width direction of the upper arc section 321 of the cold screen outer sector 32 and the vacuum chamber 10;

[0059] A plurality of first tooling 200 are arranged between the upper arc segment 321 of the cold shield outer sector 32 and the vacuum chamber 10 in the width direction of the upper arc segment 321.

[0060] A plurality of first tooling 200 are arranged between the outer arc segment 323 of the cold shield outer sector 32 and the vacuum chamber 10 in the width direction of the outer arc segment 323.

[0061] A plurality of first tooling 200 are arranged between the upper window 324 and the middle window position 325 of the cold shield outer sector 32 and the vacuum chamber 10.

[0062] Exemplarily, referring to Figure 1 six first tooling 200 are arranged between the upper arc segment 321 of the cold shield outer sector 32 and the vacuum chamber 10 in the width direction of the upper arc segment 321, nine first tooling 200 are arranged between the lower arc segment 322 of the cold shield outer sector 32 and the vacuum chamber 10 in the width direction of the lower arc segment 322, four first tooling 200 are arranged between the outer arc segment 323 of the cold shield outer sector 32 and the vacuum chamber 10 in the width direction of the outer arc segment 323, and four first tooling 200 are arranged between the upper window 324 and the middle window position 325 of the cold shield outer sector 32 and the vacuum chamber 10.

[0063] In the above technical solution, by arranging a plurality of first tooling 200 between the upper arc segment 321, the lower arc segment 322, the outer arc segment 323, the upper window 324 and the middle window position 325 of the cold shield outer sector 32 and the vacuum chamber 10, the relative position accuracy between each part of the cold shield outer sector 32 and the vacuum chamber 10 can be improved, and interference between the cold shield outer sector 32 and the vacuum chamber 10 can be further avoided, thereby ensuring the reliability of the pre-assembly component 100.

[0064] In some embodiments of the present application, referring to Figure 3 , Figure 5 and Figure 10 the step of connecting the upper arc segment 321 of the cold shield outer sector 32 and the hoisting tooling of the TF magnet 20 by the third tooling 400 includes:

[0065] The third tooling 400 is arranged between the upper arc segment 321 of the cold shield outer sector 32 and the hoisting tooling of the TF magnet 20 in the width direction of the upper arc segment 321.

[0066] The third tooling 400 is arranged between the window position of the upper arc segment 321 of the cold shield outer sector 32 (i.e., the upper window 324 mentioned above) and the hoisting tooling of the TF magnet 20.

[0067] In the technical solution, the third tooling 400 can ensure that the upper arc-shaped section 321 of the cold shield outer sector 32 and the TF magnet 20 form a uniform gap, avoid interference between the upper arc-shaped section 321 of the cold shield outer sector 32 and the TF magnet 20, and further avoid quenching of the TF magnet 20, thereby improving the reliability of the pre-assembly component 100.

[0068] In some embodiments of the present application, referring to Figure 3 and Figure 5 , the step of connecting the lower window section 326 of the cold shield outer sector 32 and the second tooling 300 through the third tooling 400 includes: arranging the third tooling 400 between the second tooling 300 and both sides of the lower window section 326 of the cold shield outer sector 32 in the width direction.

[0069] In the technical solution, the third tooling 400 can adjust the distance between both sides of the lower window section 326 of the cold shield outer sector 32 in the width direction and the second tooling 300, so that the lower window section 326 of the cold shield outer sector 32 as a whole forms a uniform gap with the TF magnet 20, avoids interference between the lower window section 326 of the cold shield outer sector 32 and the TF magnet 20, further ensures the performance of the cold shield outer sector 32, avoids quenching of the TF magnet 20, and improves the reliability of the pre-assembly component 100.

[0070] In some embodiments of the present application, referring to Figure 7 , the third tooling 400 is configured to be adjustable in length. It can be understood that the third tooling 400 can be, but is not limited to, a basket bolt, rigging, etc. When the third tooling 400 is a basket bolt, it has a simple structure and is easy to operate.

[0071] In the technical solution, the third tooling 400 is configured to be adjustable in length, which can flexibly adjust the distance between the vacuum chamber cold shield 30 and the TF magnet 20, and can be adjusted multiple times according to the needs on site to maintain the gap between the vacuum chamber cold shield 30 and the TF magnet 20, thereby ensuring the installation precision of the pre-assembly component 100.

[0072] In some embodiments of the present application, the assembly method of the nuclear fusion device pre-assembly component 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.

[0073] In the above technical solution, by measuring the gap between the vacuum chamber cold shield 30 and the TF magnet 20, it can be seen in time whether the gap between the vacuum chamber cold shield 30 and the TF magnet 20 deviates from the expected value, and the length of the third tooling 400 can be adjusted according to the measurement result, the tensioning force can be adjusted to make slight adjustment to the gap, and it is ensured that the gap between the vacuum chamber cold shield 30 and the TF magnet 20 meets the design requirements during load transfer. Then the vacuum chamber cold shield 30 is hoisted together with the vacuum chamber 10 and the TF magnet 20 into the main machine hall, further ensuring the reliability of the pre-assembled assembly 100.

[0074] In some embodiments of the present application, with reference to Figure 6 and Figure 11 , the step of connecting the middle window section 33 and the toroidal field magnet support seat by the fourth tooling 500 includes: arranging the fourth tooling 500 between the two sides of the middle window section 33 in the width direction and the toroidal field magnet support seat.

[0075] In the above technical solution, by arranging the fourth tooling 500 between the two sides of the middle window section 33 in the width direction and the toroidal field magnet support seat, the middle window section 33 is connected to the toroidal field magnet support seat on both sides, improving the support stability. Since the middle window section 33 is connected to the cold shield outer sector 32, the load of the vacuum chamber cold shield 30 can act on the toroidal field magnet support seat. When the vacuum chamber cold shields 30 of the two adjacent sectors of the pre-assembled assembly 100 are folded, the first tooling 200 on both sides of the width direction of the vacuum chamber cold shield 30 is removed to prevent the influence of the first tooling 200 on the folding of the vacuum chamber cold shield 30. At the same time, the load of the whole vacuum chamber cold shield 30 can act on the toroidal field magnet support seat to ensure the gap between the vacuum chamber cold shield 30, the TF magnet 20 and the vacuum chamber 10.

[0076] When the plurality of pre-assembled assemblies 100 are folded into a ring-shaped structure, with reference to Figure 11 , the two sides of the width direction of the middle window section 33 of the plurality of pre-assembled assemblies 100 are supported on the toroidal field magnet support seat by the fourth tooling 500, the plurality of vacuum chamber cold shields 30 are sequentially spliced, and finally the ring-shaped vacuum chamber cold shield 30 can be supported on the plurality of toroidal field magnet support seats through the plurality of middle window sections 33, so that the ring-shaped vacuum chamber cold shield 30 always maintains a certain gap with the vacuum chamber 10 and the TF magnet 20.

[0077] In some embodiments of the present application, the fourth tooling 500 is configured to be adjustable in length. The structure of the fourth tooling 500 can refer to the third tooling 400, for example, can be a basket bolt. By adjusting the length of the fourth tooling 500, the support force between the middle window section 33 and the toroidal field magnet support seat can be adjusted according to the site needs, preventing looseness between the middle window section 33 and the toroidal field magnet support seat, and better supporting the vacuum chamber cold shield 30 on the toroidal field magnet support seat as a whole.

[0078] Reference Figure 12 According to the installation method of the nuclear fusion device, the nuclear fusion device comprises a plurality of pre-assembled components 100, the plurality of pre-assembled components 100 are spliced into a ring-shaped structure in a circumferential direction, and the installation method of the nuclear fusion device comprises:

[0079] Step S201, assembling a plurality of pre-assembled components 100 by using the assembly method of the nuclear fusion device pre-assembled component according to any one of the preceding embodiments, and hoisting the plurality of pre-assembled components 100 to a main machine hall;

[0080] Step S202, removing the first tooling 200 on both sides of the pre-assembled component 100 in the width direction;

[0081] Step S203, splicing the plurality of pre-assembled components 100 into a ring-shaped structure. In the process of splicing the plurality of pre-assembled components 100 into a ring-shaped structure, the first tooling 200 between the vacuum chamber 10 and the vacuum chamber cold shield 30, and the third tooling 400 between the vacuum chamber cold shield 30 and the TF magnet 20 can be removed according to the site needs. If the two fan-shaped vacuum chamber cold shields 30 can be stably supported on the toroidal field magnet support seat, the tooling can be removed. If the vacuum chamber cold shield 30 cannot be stably supported on the toroidal field magnet support seat, the next fan-shaped pre-assembled component 100 can be assembled, and after detecting that the vacuum chamber cold shield 30 can be stably supported on the toroidal field magnet support seat, it can be determined whether to remove the tooling on the previous pre-assembled component 100.

[0082] According to the installation method of the nuclear fusion device, the plurality of pre-assembled components 100 are assembled by using the assembly method of the nuclear fusion device pre-assembled component, and the plurality of pre-assembled components 100 are hoisted to the main machine hall; the first tooling 200 on both sides of the pre-assembled component 100 in the width direction is removed; and the plurality of pre-assembled components 100 are spliced into a ring-shaped structure. In the process of splicing the plurality of pre-assembled components 100 into a ring-shaped structure, the good gap between the vacuum chamber 10, the vacuum chamber cold shield 30 and the TF magnet 20 can be ensured, the mutual contact between the vacuum chamber 10, the vacuum chamber cold shield 30 and the TF magnet 20 can be effectively prevented, and the installation reliability of the nuclear fusion device can be improved.

[0083] In the description of the specification, the description of the terms "some embodiments", "optionally", "further", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are contained in at least one embodiment or example of the present application. In the specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0084] Although embodiments of the present application have been shown and described, it would be appreciated by those skilled in the art that changes, modifications, alternatives and variations to these embodiments could be made without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A method of assembling a pre-assembly of a nuclear fusion device, the pre-assembly comprising a vacuum chamber, a window neck tube in the vacuum chamber, a vacuum chamber cold shield and a TF magnet, the vacuum chamber cold shield comprising an inner cold shield sector, an outer cold shield sector and a mid-window sector, characterized in that, The assembly method of the nuclear fusion device pre-assembly component comprises: hoisting the cold shield inner sector to the high-field side of the vacuum chamber, supporting between the cold shield inner sector and the vacuum chamber by a first tooling to maintain the gap between the cold shield inner sector and the vacuum chamber; hoisting the cold shield outer sector to the low-field side of the vacuum chamber, supporting between the cold shield outer sector and the vacuum chamber by the first tooling to maintain the gap between the cold shield outer sector and the vacuum chamber, and connecting the cold shield outer sector and the cold shield inner sector to assemble the vacuum chamber cold shield; hoisting the TF magnet to the outside of the vacuum chamber cold shield, connecting the TF magnet and the middle window position of the vacuum chamber by a second tooling, connecting the hoisting tooling of the upper arc sector of the cold shield outer sector and the TF magnet by a third tooling, and connecting the lower window sector of the cold shield outer sector and the second tooling by the third tooling to maintain the gap between the vacuum chamber cold shield and the TF magnet; connecting the vacuum chamber middle window neck pipe with the vacuum chamber, and sleeving the middle window sector outside the vacuum chamber middle window neck pipe and connecting the cold shield outer sector, connecting the middle window sector and the toroidal field magnet support seat by a fourth tooling to make the toroidal field magnet support seat support the middle window sector in the up-down direction.

2. The method of assembling a nuclear fusion device prepackaged assembly of claim 1, wherein, The step of supporting between the cold shield inner sector and the vacuum chamber by the first tooling comprises: disposing a plurality of first toolings between the cold shield inner sector and the vacuum chamber in the width direction of the cold shield inner sector, and spacing the plurality of first toolings in the height direction of the cold shield inner sector.

3. The method of assembling a nuclear fusion device pre-assembled package according to claim 1 or 2, characterized in that, The step of supporting between the cold shield outer sector and the vacuum chamber by the first tooling comprises: disposing a plurality of first toolings between the upper arc sector of the cold shield outer sector and the vacuum chamber in the width direction of the upper arc sector of the cold shield outer sector; disposing a plurality of first toolings between the lower arc sector of the cold shield outer sector and the vacuum chamber in the width direction of the lower arc sector of the cold shield outer sector; disposing a plurality of first toolings between the outer arc sector of the cold shield outer sector and the vacuum chamber in the width direction of the outer arc sector of the cold shield outer sector; disposing a plurality of first toolings between the upper window and middle window positions of the cold shield outer sector and the vacuum chamber.

4. The method of assembling a nuclear fusion device prepackaged assembly of claim 1, wherein, The step of connecting the upper arc sector of the cold shield outer sector and the hoisting tooling of the TF magnet by the third tooling comprises: disposing a plurality of third toolings between the upper arc sector of the cold shield outer sector and the hoisting tooling of the TF magnet in the width direction of the upper arc sector of the cold shield outer sector; disposing a plurality of third toolings between the window position of the upper arc sector of the cold shield outer sector and the hoisting tooling of the TF magnet.

5. The method of assembling a nuclear fusion device pre-packaged assembly of claim 4, wherein, The step of connecting the lower window sector of the cold shield outer sector and the second tooling by the third tooling comprises: disposing the third tooling between the lower window sector of the cold shield outer sector and the second tooling in the width direction of the lower window sector of the cold shield outer sector.

6. The method of assembling a nuclear fusion device pre-assembled package according to claim 4 or 5, characterized in that, The third tooling is configured to have adjustable length.

7. The method of assembling a nuclear fusion device pre-packaged assembly of claim 6, wherein, The assembly method of the nuclear fusion device pre-assembly component further comprises: measuring the gap between the vacuum chamber cold shield and the TF magnet, and adjusting the length of the third tooling.

8. The method of assembling a nuclear fusion device prepackaged assembly of any one of claims 1, 2, or 4, wherein, The step of connecting the middle window segment and the annular field magnet support seat by the fourth tooling comprises: A fourth tooling is arranged between the two sides of the middle window segment in the width direction and the annular field magnet support seat.

9. The method of assembling a nuclear fusion device pre-packaged assembly of claim 8, wherein, The fourth tooling is configured to be adjustable in length.

10. A method of installing a nuclear fusion device, characterized by, A nuclear fusion device comprises a plurality of preassembled components, and the plurality of preassembled components are spliced into an annular structure in a circumferential direction. A method for assembling a plurality of preassembled components of a nuclear fusion device according to any one of claims 1 to 9 is provided. The first tooling on both sides of the preassembled component in the width direction is removed. The plurality of preassembled components are spliced into an annular structure.

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