Disc structure for supporting tf magnets of a nuclear fusion device

Abstract

The application relates to the technical field of nuclear fusion device installation, and discloses a TF magnet support disc structure for a nuclear fusion device. In the structure, the central column comprises a lower column and an equatorial column located above the lower column; the TF magnet support disc comprises a plurality of sector plates which are detachably and circumferentially connected in sequence in a horizontal state, the radial inner ends of the plurality of sector plates are inserted between the lower column and the equatorial column and are fixed with the lower column and the equatorial column; a plurality of mounting holes are arranged on each sector plate, and the upper surface of each sector plate is used for arranging a TF temporary support and fixing the TF temporary support through the plurality of mounting holes. The application can guarantee the high installation precision requirement of the TF magnet, and has the advantages of simple structure and convenient installation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nuclear fusion device installation, and in particular to a support disc structure for a TF magnet of a nuclear fusion device. BACKGROUND

[0002] The TF magnet is a core component of the nuclear fusion device, and generates a strong magnetic field to confine the plasma, which is crucial for achieving controllable nuclear fusion. Since the overall size of a single TF coil (i.e., a fan-shaped TF magnet) is large (the height, width and thickness are 11.5x5.6x5m), the weight is about 90t, the size of 16 TF coils is (Φ13x10.5m), the overall weight is about 1400t, the installation precision is high (±0.5mm), and the lifting deformation is controlled within ±1mm.

[0003] The conventional support tool is designed according to the interface of the component, and the support position is the ground or a temporary platform. Generally, the bearing weight is small, the precision is low, the installation space is not limited, and the deformation of the tool itself is large. However, for the TF magnet with large size, heavy load, high installation precision in the nuclear fusion device, the conventional support tool has low strength and low installation precision, and it is difficult to meet the installation requirements of the TF magnet of the nuclear fusion device.

[0004] For example, the lifting support tool is basically designed according to the conventional design, which adopts a temporary platform, a support structure connected with the component, and support structures at both ends. A large on-site operation space is required. The conventional support tool is simple to manufacture, easy to install and debug, the lifting environment is relatively spacious, and the strength and precision requirements are not high. For the TF magnet with large size, heavy weight, high installation precision, narrow installation space and the requirement of controlling deformation, the conventional lifting support tool and installation scheme cannot meet the requirements of precision and deformation control in the adjustment and installation process. Moreover, due to the narrow space of the installation area and the requirement of the installation pose, there is a risk of collision between the TF magnet and the building and the installed components during the adjustment and installation process. SUMMARY

[0005] The present application aims to at least solve one of the technical problems in the related art. To this end, one object of the present application is to provide a support disc structure for a TF magnet of a nuclear fusion device, which ensures high installation precision of the TF magnet and is simple in structure and easy to install.

[0006] The support disc structure for a TF magnet of a nuclear fusion device according to an embodiment of the present application comprises:

[0007] a central column comprising a lower column and an equatorial column located above the lower column;

[0008] The TF magnet support disc comprises a plurality of sector plates which are sequentially and detachably spliced in a horizontal state in a circumferential direction, and the radially inner ends of the plurality of sector plates extend into and are fixed with the lower column and the equatorial column.

[0009] By sequentially and detachably splicing the plurality of sector plates in the circumferential direction to form the TF magnet support disc, the planeness of the TF magnet support disc is ensured to meet the requirements, and the center column is used as a support to be placed between the lower column and the equatorial column, so that the lower column, the sector plates and the equatorial column are firmly fixed together, and the sector plates can be ensured to be in a horizontal state. The TF temporary support can be conveniently installed on the upper surface of the sector plates through the mounting holes, so that the TF temporary support can support the TF magnet from below and adjust the pose of the TF magnet during the installation of the TF magnet, and the TF magnet can be ensured to be installed to the designed position, and the installation position of the TF magnet can meet the high-precision requirements and deformation control requirements.

[0010] That is, the TF magnet support disc structure for the nuclear fusion device of the embodiment of the application can ensure the high installation precision requirements of the TF magnet by itself high strength, high levelness and high planeness, and the structure is simple and convenient to install.

[0011] In some embodiments, the upper end of the lower column is fixed with a lower column flange, and the lower column flange comprises a lower column inner flange located on the inner side of the lower column and a lower column outer flange located on the outer side of the lower column.

[0012] The lower end of the equatorial column is fixed with an equatorial column flange, and the equatorial column flange comprises an equatorial column inner flange located on the inner side of the equatorial column and an equatorial column outer flange located on the outer side of the equatorial column.

[0013] The radially inner ends of the sector plates are clamped between the lower column flange and the equatorial column flange, and the inner ring is fastened by the first bolt which passes through the lower column inner flange, the radially inner ends of the sector plates and the equatorial column inner flange, and the outer ring is fastened by the second bolt which passes through the lower column outer flange, the radially inner ends of the sector plates and the equatorial column outer flange.

[0014] In some embodiments, each of the sector plates is provided with first bolt holes for the first bolts to pass through and second bolt holes for the second bolts to pass through, the number of the first bolt holes and the number of the second bolt holes on each of the sector plates are three and arranged in a triangle shape; in the circumferentially adjacent two sector plates, the number of the first bolt holes on one of the sector plates is two and the number of the second bolt holes is one, and the number of the first bolt holes on the other of the sector plates is one and the number of the second bolt holes is two; the first bolt holes on the TF magnet support disc are arranged equidistantly along one circumferential direction, and the second bolt holes on the TF magnet support disc are arranged equidistantly along another circumferential direction.

[0015] In some embodiments, the lower column is provided with a lower column reinforcing rib between the lower column outer flange and the lower column, and the equatorial column is provided with an equatorial column reinforcing rib between the equatorial column outer flange and the equatorial column.

[0016] In some embodiments, each of the sector plates comprises an upper sector plate, a lower sector plate and a rib plate assembly; the upper sector plate and the lower sector plate are both arranged horizontally, and the upper sector plate is located above the lower sector plate; the rib plate assembly is located between the upper sector plate and the lower sector plate, and the rib plate assembly is welded and fixed with the upper sector plate and the lower sector plate.

[0017] In some embodiments, the radial side surface and the inner circumferential side surface on both sides of the upper sector plate are aligned with the radial side surface and the inner circumferential side surface on both sides of the lower sector plate.

[0018] In some embodiments, the rib plate assembly comprises a first radial vertical rib plate and a circumferential vertical rib plate; the first radial vertical rib plate is distributed between the radial side of the upper sector plate and the radial side of the lower sector plate on the same side, and the radial side of the upper sector plate, the radial side of the first radial vertical rib plate and the radial side of the lower sector plate are aligned vertically; the first radial vertical rib plates on the circumferentially adjacent sector plates are fastened to each other by a third bolt.

[0019] In some embodiments, the first radial vertical rib plate is provided with a bolt hole for the third bolt to pass through at the middle position and the radial outer end position of each of the first radial vertical rib plates.

[0020] The upper sector plate comprises an upper sector plate body and a cover plate, and the upper sector plate body is provided with a bolt installation operation port near the middle position of the first radial vertical rib plate, and the bolt installation operation port is provided with the cover plate.

[0021] In some embodiments, the mounting holes are distributed at the outer peripheral portion of the upper sector plate body.

[0022] In some embodiments, the number of mounting holes is five, two of which are distributed at the middle portion of the two cover plates, and the other three are distributed at the outer peripheral portion of the upper sector plate body.

[0023] In some embodiments, the rib plate assembly further comprises a second radial rib plate located on one side or both sides of the circumferential vertical rib plate.

[0024] In some embodiments, after the TF magnet support disc is assembled from a plurality of original sector plates, the entire upper surface of the TF magnet support disc original structure and the lower surface connected with the lower column flange edge are machined integrally to obtain the TF magnet support disc.

[0025] Additional aspects and advantages of the present application will be partially given in the following description, partially will become apparent from the following description, or will be understood by those skilled in the art through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a schematic diagram of the application scene of the TF magnet support disc structure of the nuclear fusion device of the present application;

[0027] Figure 2 is a schematic diagram of the TF magnet support disc structure of the nuclear fusion device of the present application;

[0028] Figure 3 is a cross-sectional view of the TF magnet support disc structure of the nuclear fusion device of the present application at the equatorial column flange edge;

[0029] Figure 4 is a transverse cross-sectional view of the TF magnet support disc of the TF magnet support disc structure of the nuclear fusion device of the present application;

[0030] Figure 5 is a three-dimensional schematic diagram of the sector plate of the TF magnet support disc structure of the nuclear fusion device of the present application;

[0031] Figure 6 is a top view of the sector plate of the TF magnet support disc structure of the nuclear fusion device of the present application;

[0032] Figure 7 is a transverse cross-sectional view of the sector plate of the TF magnet support disc structure of the nuclear fusion device of the present application;

[0033] Figure 8 is a partial structure vertical cross-sectional view of the sector plate of the TF magnet support disc structure of the nuclear fusion device of the present application;

[0034] Figure 9 is a perspective view of a lower column of a nuclear fusion device TF magnet support disc structure according to the present application;

[0035] Figure 10 is a cross-sectional view of a lower column of a nuclear fusion device TF magnet support disc structure according to the present application.

[0036] Reference signs:

[0037] central column 1, lower column 11, lower column flange edge 111, lower column inner flange edge 1111, lower column outer flange edge 1112, lower column reinforcing rib 112, equatorial column 12, equatorial column flange edge 121, equatorial column inner flange edge 1211, equatorial column outer flange edge 1212, equatorial column reinforcing rib 122, first bolt 13, second bolt 14, TF magnet support disc 2, sector plate 21, mounting hole 210, first bolt hole 211, second bolt hole 212, upper sector plate 213, upper sector plate body 2131, cover plate 2132, connecting hole 2133, lower sector plate 214, first radial vertical rib plate 215, circumferential vertical rib plate 216, second radial rib plate 217, third bolt 218. DETAILED DESCRIPTION

[0038] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or have the same or similar functions throughout.

[0039] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or have the same or similar functions throughout. Figures 1 to 10 A nuclear fusion device TF magnet support disc structure according to embodiments of the present application is described below in conjunction with

[0040] As shown in Figure 1 , the nuclear fusion device TF magnet support disc structure according to embodiments of the present application is mainly used for installing a TF temporary support (not shown in the figure), and in the process of installing a TF magnet, the TF temporary support is used to support and adjust the pose of the TF magnet, to ensure that the TF magnet is installed to the designed position, and to ensure that the installation position of the TF magnet meets the high-precision requirement and the requirement of controlling deformation. Since the nuclear fusion device TF magnet component is large in size and weight, high in installation precision, narrow in installation space, and needs to control deformation, the nuclear fusion device TF magnet support disc structure according to embodiments of the present application is a key tool for adjusting and installing the TF magnet, directly affects the installation precision of the TF magnet, and is a very key tool for installing the nuclear fusion device, and the strength, levelness, machining precision and installation method of the nuclear fusion device TF magnet support disc structure have an important influence on the installation position precision of the TF magnet.

[0041] As shown in Figures 1 to 10 , the nuclear fusion device TF magnet support disc structure according to embodiments of the present application includes a central column 1 and a TF magnet support disc 2.

[0042] The central column 1 comprises a lower column 11 and an equatorial column 12 located above the lower column 11, and the lower column 11 is coaxially arranged with the equatorial column 12.

[0043] The TF magnet support disc 2 comprises a plurality of sector plates 21 which are sequentially detachably connected in a horizontal state in a circumferential direction, and the radially inner ends of the plurality of sector plates 21 extend into the space between the lower column 11 and the equatorial column 12 and are fixed with the lower column 11 and the equatorial column 12, so as to ensure that the sector plates 21 are stably in a horizontal state. Each sector plate 21 is provided with a plurality of mounting holes 210, and the upper surface of each sector plate 21 is used for arranging a TF temporary support and fixing the TF temporary support through the plurality of mounting holes 210, so as to facilitate installation.

[0044] By sequentially detachably connecting the plurality of sector plates 21 in the circumferential direction to form the TF magnet support disc 2, the planeness of the TF magnet support disc 2 is ensured to meet the requirements, and the central column 1 is used as a support and placed between the lower column 11 and the equatorial column 12, so that the lower column 11, the sector plates 21 and the equatorial column 12 are firmly fixed together, and the sector plates 21 can be ensured to be in a horizontal state. The TF temporary support can be conveniently installed on the upper surface of the sector plates 21 through the mounting holes 210, so as to support the TF magnet from below through the TF temporary support and adjust the pose of the TF magnet during the installation of the TF magnet, so as to ensure that the TF magnet is installed to a designed position and to ensure that the installation position of the TF magnet meets high-precision requirements and deformation control requirements.

[0045] That is, the TF magnet support disc structure for the nuclear fusion device of the embodiment of the present application can ensure high installation precision requirements of the TF magnet through high strength, high levelness and high planeness of the structure, and the structure is simple and convenient to install.

[0046] In some embodiments, as shown in Figures 1 to 3 , Figures 9 to 10 The upper end of the lower column 11 is fixed with a lower column flange edge 111, and the lower column flange edge 111 comprises a lower column inner flange edge 1111 located on the inner side of the lower column 11 and a lower column outer flange edge 1112 located on the outer side of the lower column 11. Specifically, the lower column inner flange edge 1111 and the lower column outer flange edge 1112 are directly connected to form an integrally formed lower column flange edge 111, and the lower column flange edge 111 is fixed between the lower column 11 by welding, which is firm.

[0047] The lower end of the equatorial column 12 is fixed with an equatorial column flange edge 121, which includes an equatorial column inner flange edge 1211 on the inner side of the equatorial column 12 and an equatorial column outer flange edge 1212 on the outer side of the equatorial column 12; specifically, the equatorial column inner flange edge 1211 and the equatorial column outer flange edge 1212 are directly connected to form an integrally formed equatorial column flange edge 121, which is fixed between the equatorial column 12 by welding, and is fixed firmly.

[0048] The radially inner end of the sector plate 21 is clamped between the lower column flange edge 111 and the equatorial column flange edge 121, and is fastened by the first bolt 13 passing through the lower column inner flange edge 1111, the radially inner end of the sector plate 21 and the equatorial column inner flange edge 1211 to realize inner ring fastening, and is fastened by the second bolt 14 passing through the lower column outer flange edge 1112, the radially inner end of the sector plate 21 and the equatorial column outer flange edge 1212 to realize outer ring fastening. In this way, the TF magnet support disc 2 is fixed firmly, the stability of the sector plate 21 is increased, the sector plate 21 is ensured to be in a horizontal state, installation and positioning are facilitated, the deviation of the TF magnet installation is reduced, and the high-precision requirement and deformation control requirement of the installation position of the TF magnet are ensured.

[0049] In some embodiments, as shown in Figures 3 to 7 , the number of first bolt holes 211 on the sector plate 21 is consistent with the number of corresponding first bolts 13; the number of second bolt holes 212 on the sector plate 21 is consistent with the number of corresponding second bolts 14.

[0050] Each sector plate 21 is provided with first bolt holes 211 for the first bolts 13 to pass through and second bolt holes 212 for the second bolts 14 to pass through, and the number of first bolt holes 211 and the number of second bolt holes 212 on each sector plate 21 are three and arranged in a triangle; in two circumferentially adjacent sector plates 21, the number of first bolt holes 211 on one of the sector plates 21 is two and the number of second bolt holes 212 is one, and the number of first bolt holes 211 on the other of the sector plates 21 is one and the number of second bolt holes 212 is two; the first bolt holes 211 on the TF magnet support disc 2 are arranged equidistantly along one circumference, and the second bolt holes 212 on the TF magnet support disc 2 are arranged equidistantly along another circumference.

[0051] In this way, the TF magnet support disc 2 is fixed firmly, the stability of the sector plate 21 is increased, installation and positioning are facilitated, the deviation of the TF magnet installation is reduced, the high-precision requirement and deformation control requirement of the installation position of the TF magnet are ensured, and too many holes are avoided on the sector plate 21.

[0052] In some embodiments, as shown in Figures 1 to 2 , Figures 9 to 10As shown, the lower column reinforcing rib 112 is arranged between the lower column outer flange 1112 and the lower column 11, and the equatorial column reinforcing rib 122 is arranged between the equatorial column outer flange 1212 and the equatorial column 12. In this way, the strength of the lower column flange 111 and the equatorial column flange 121 is enhanced, respectively, and the deformation after installation and subsequent loading is reduced, which is conducive to ensuring the high-precision installation position requirement and deformation control requirement of the TF magnet.

[0053] In some embodiments, as shown in Figures 4 to 8 Each sector plate 21 includes an upper sector plate 213, a lower sector plate 214, and a rib plate assembly. The upper sector plate 213 and the lower sector plate 214 are both horizontally arranged, with the upper sector plate 213 located above the lower sector plate 214. The rib plate assembly is located between the upper sector plate 213 and the lower sector plate 214 and is welded and fixed to the upper sector plate 213 and the lower sector plate 214.

[0054] In this way, the strength of the sector plate 21 can be greatly improved, and the sector plate 21 can avoid deformation when supporting the TF magnet through temporary support by the TF magnet, thereby ensuring the high-precision installation requirement and deformation control of the TF magnet. At the same time, the weight of the sector plate 21 is reduced, facilitating the installation of the sector plate 21.

[0055] In some embodiments, as shown in Figures 5 to 6 The radial side surfaces and the inner circumferential side surfaces on both sides of the upper sector plate 213 are aligned with the radial side surfaces and the inner circumferential side surfaces on both sides of the lower sector plate 214. In this way, the radial side surfaces of the circumferentially adjacent sector plates 21 are in close contact with each other over a large area, and the circumferential connection is more stable, which is conducive to ensuring the high-precision installation position requirement and deformation control requirement of the TF magnet.

[0056] In some embodiments, as shown in Figures 4 to 8 The rib plate assembly includes first radial vertical rib plates 215 and circumferential vertical rib plates 216. The first radial vertical rib plates 215 are distributed between the radial edges on both sides of the upper sector plate 213 and the lower sector plate 214, and the radial side surfaces of the upper sector plate 213, the first radial vertical rib plates 215, and the lower sector plate 214 on the same side are aligned vertically. The circumferentially adjacent sector plates 21 are fastened to each other by the third bolts 218 fastening the first radial vertical rib plates 215 adjacent to each other, thereby connecting and fixing the circumferentially adjacent sector plates 21. Since the radial side surfaces of the upper sector plate 213, the first radial vertical rib plates 215, and the lower sector plate 214 on the same side are aligned vertically, the radial side surfaces of the circumferentially adjacent sector plates 21 are in close contact with each other over a large area, and the circumferential connection is more stable, which is conducive to ensuring the high-precision installation position requirement and deformation control requirement of the TF magnet. The circumferential vertical rib plates 216 are sequentially and spacedly distributed between the two first radial vertical rib plates in the radial direction and are welded and fixed to the two first radial vertical rib plates.

[0057] The rib plate assembly can greatly improve the strength of the sector plate 21 by arranging the first radial vertical rib plate 215 and the circumferential vertical rib plate 216, avoid deformation when supporting the TF magnet by the temporary support of the TF magnet, and further ensure the high installation precision requirement and deformation control of the TF magnet. At the same time, it is beneficial to reduce the weight of the sector plate 21 and facilitate the installation of the sector plate 21.

[0058] In some embodiments, as shown in Figures 4 to 8 The middle position and the radial outer end position of each first radial vertical rib plate 215 are provided with bolt holes for the third bolt 218 to pass through. Since the sector plate 21 mainly bears vertical load and very small horizontal load, the first radial vertical rib plate 215 of the adjacent sector plate 21 can be bolted at the middle position and the radial outer end position, which facilitates the splicing of the sector plate 21 into the TF magnet support disc 2.

[0059] The upper sector plate 213 includes an upper sector plate body 2131 and a cover plate 2132, and the upper sector plate body 2131 is provided with a bolt installation operation port at the middle position close to the first radial vertical rib plate 215, and the bolt installation operation port is provided with the cover plate 2132, so that the middle position of the first radial vertical rib plate 215 of the adjacent sector plate 21 can be conveniently installed with the third bolt 218.

[0060] In some embodiments, as shown in Figure 6 The mounting holes 210 are distributed at the outer peripheral portion of the cover plate 2132 and the upper sector plate body 2131. Among them, the mounting holes 210 are arranged on the cover plate 2132, which can be used for installing the temporary support of the TI magnet on one hand, and used as lifting lugs on the other hand, facilitating the lifting and installation of the sector plate 21 and the TF magnet support disc 2, and on the other hand, avoiding too many holes on the upper sector plate body 2131, and the processing is more convenient.

[0061] In some embodiments, as shown in Figure 6 The number of mounting holes 210 is five, of which two mounting holes 210 are distributed in the middle of the two cover plates 2132, that is, one mounting hole 210 is arranged in the middle of each cover plate 2132, and the other three mounting holes 210 are distributed along the circumference at the outer peripheral portion of the upper sector plate body 2131. Among them, one mounting hole 210 is arranged on each cover plate 2132, which can be used for installing the temporary support of the TI magnet on one hand, and used as lifting lugs on the other hand, facilitating the lifting and installation of the cover plate 2132, the sector plate 21 and the TF magnet support disc 2, and on the other hand, avoiding too many holes on the upper sector plate body 2131, and the processing is more convenient.

[0062] In some embodiments, as shown in Figure 4As shown, the web plate assembly further comprises a second radial web plate 217, which is located on one side or both sides of the circumferential vertical web plate 216. Thus, the strength of the sector plate 21 is further enhanced, so that the sector plate 21 can support the TF magnet and the vertical load applied by the temporary support of the TF magnet, and the sector plate 21 itself will not be deformed.

[0063] In some embodiments, as shown, two connection holes 2133 for connecting with other work are further arranged on each upper sector plate 213 for later disassembly of the TF magnet support disc 2. Figures 5 to 6

[0064] In some embodiments, after the TF magnet support disc 2 is formed by splicing a plurality of original sector plates 21 into the original structure of the TF magnet support disc 2, the entire upper surface of the original structure of the TF magnet support disc 2 and the lower surface connected with the lower column flange edge 111 are machined integrally. Thus, the flatness of the entire installation surface of the TF magnet support disc 2 and the levelness of the field installation are ensured, and the installation position of the TF magnet is ensured to meet the high-precision requirement.

[0065] In summary, the TF magnet support disc structure of the embodiment of the present application can be applied to components with large size, large weight, high installation precision, narrow installation space, and deformation control during adjustment and installation.

[0066] Specifically, the sector plate 21 is formed by welding the upper sector plate 213, the lower sector plate 214, the first radial vertical web plate 215, the second radial vertical web plate, and the circumferential vertical web plate 216, which ensures the strength of the sector plate 21 and reduces the weight of the sector plate 21, facilitating the later installation and disassembly, especially the disassembly.

[0067] The TF magnet temporary support disc is placed between the lower column 11 and the equatorial column 12, and is fixed by bolts distributed in the inner and outer rings of the column, which ensures the firm fixation of the temporary support disc and reduces the installation deviation.

[0068] At the flange connecting part of the lower column 11 and the equatorial column 12, the lower column reinforcing rib 112 and the equatorial column reinforcing rib 122 are arranged, which enhances the strength of the lower column flange edge 111 and the equatorial column flange edge 121 and reduces the deformation after installation and subsequent loading.

[0069] ​The upper sector plate body 2131 is provided with a bolt mounting operation opening at the middle position close to the first radial vertical rib plate 215, the bolt mounting operation opening is provided with a cover plate 2132, the cover plate 2132 is provided with an installation hole 210, so that subsequent installation and disassembly are facilitated; the adjacent sector support frames are connected together through the installation holes 210 at the two ends, the connection and fixation of the various support sectors are ensured, and the strength and flatness of the whole meet the requirements.

[0070] The installation hole 210 is positioned, the cover plate 2132 is arranged, and the installation hole 210 is opened on the cover plate 2132, so that the hoisting and dismounting of the cover plate 2132 are facilitated, and the cover plate 2132 is also used as a fixed support point of the subsequent TF magnet adjusting tool.

[0071] After the TF magnet support disc 2 is formed by combining a plurality of original sector plates 21 into the original structure of the TF magnet support disc 2, the entire upper surface of the original structure of the TF magnet support disc 2 and the lower surface connected with the lower column flange edge 111 are respectively machined integrally, so that the flatness of the entire installation surface of the TF magnet support disc 2 and the levelness of the field installation are ensured.

[0072] Although the embodiments of the present application have been shown and described above, it should be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-mentioned embodiments within the scope of the present application.

Claims

1. A TF magnet support disk structure for a nuclear fusion device, characterized in that, include: A central pillar, comprising a lower pillar and an equatorial pillar located above the lower pillar; A TF magnet support disk includes multiple sector plates, which are horizontally arranged and detachably spliced ​​in a circumferential direction. The radial inner ends of the multiple sector plates extend between the lower column and the equatorial column and are fixed to the lower column and the equatorial column. Each sector plate is provided with multiple mounting holes, and the upper surface of each sector plate is used to set a TF temporary support and fix the TF temporary support through the multiple mounting holes. Each of the sector plates includes an upper sector plate, a lower sector plate, and a stiffener assembly; the upper sector plate and the lower sector plate are both arranged horizontally, with the upper sector plate located above the lower sector plate; the stiffener assembly is located between the upper sector plate and the lower sector plate, and the stiffener assembly is welded and fixed to the upper sector plate and the lower sector plate.

2. The TF magnet support disk structure for a nuclear fusion device according to claim 1, characterized in that, The upper end of the lower column is fixed with a lower column flange edge, which includes an inner lower column flange edge located inside the lower column and an outer lower column flange edge located outside the lower column. The lower end of the equatorial column is fixed with an equatorial column flange edge, which includes an inner equatorial column flange edge located inside the equatorial column and an outer equatorial column flange edge located outside the equatorial column. The radial inner end of the sector plate is sandwiched between the lower column flange and the equatorial column flange. The inner ring is fastened by passing a first bolt through the lower column inner flange, the radial inner end of the sector plate, and the equatorial column inner flange. The outer ring is fastened by passing a second bolt through the lower column outer flange, the radial inner end of the sector plate, and the equatorial column outer flange.

3. The TF magnet support disk structure for a nuclear fusion device according to claim 2, characterized in that, Each of the sector plates is provided with a first bolt hole for the first bolt to pass through and a second bolt hole for the second bolt to pass through. The number of first bolt holes and second bolt holes on each sector plate is three in total and arranged in a triangle. In two circumferentially adjacent sector plates, one sector plate has two first bolt holes and one second bolt hole, while the other sector plate has one first bolt hole and two second bolt holes. The first bolt holes on the TF magnet support disk are arranged at equal intervals along one circumference, and the second bolt holes on the TF magnet support disk are arranged at equal intervals along another circumference.

4. The TF magnet support disk structure for a nuclear fusion device according to claim 2, characterized in that, A lower column reinforcing rib is provided between the outer flange edge of the lower column and the lower column, and an equatorial column reinforcing rib is provided between the outer flange edge of the equatorial column and the equatorial column.

5. The TF magnet support disk structure for a nuclear fusion device according to claim 1, characterized in that, The radial and inner circumferential sides of the upper sector plate are aligned vertically with the radial and inner circumferential sides of the lower sector plate.

6. The TF magnet support disk structure for a nuclear fusion device according to claim 5, characterized in that, The stiffener assembly includes a first radial vertical stiffener and a circumferential vertical stiffener. The first radial vertical stiffener is distributed between the radial edges of the upper and lower sector plates. The radial sides of the upper sector plate, the first radial vertical stiffener, and the lower sector plate are flush with each other. The circumferentially adjacent sector plates are fastened together by a third bolt. The circumferential vertical stiffener is distributed between two first radial vertical stiffeners in a radial direction from the inside to the outside and is welded to the two first radial vertical stiffeners.

7. The TF magnet support disk structure for a nuclear fusion device according to claim 6, characterized in that, Each of the first radial vertical stiffeners has bolt holes at its middle and radial outer ends for the third bolt to pass through; The upper sector plate includes an upper sector plate body and a cover plate. The upper sector plate body has a bolt installation port at the middle position near the first radial vertical rib plate, and the cover plate is provided on the bolt installation port.

8. The TF magnet support disk structure for a nuclear fusion device according to claim 7, characterized in that, The mounting holes are distributed on the outer periphery of the cover plate and the upper sector plate body.

9. The TF magnet support disk structure for a nuclear fusion device according to claim 8, characterized in that, There are five mounting holes, two of which are located in the middle of the two cover plates, and the other three are distributed circumferentially around the outer periphery of the upper fan-shaped plate body.

10. The TF magnet support disk structure for a nuclear fusion device according to claim 6, characterized in that, The stiffener assembly further includes a second radial stiffener located on one or both sides of the circumferential vertical stiffener.

11. The TF magnet support disk structure for a nuclear fusion device according to any one of claims 2-4, characterized in that, The TF magnet support disk is made by assembling multiple original sector plates to form the original structure of the TF magnet support disk, and then machining the entire upper surface of the original structure of the TF magnet support disk and the lower surface connected to the lower column flange.

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