Central column tool for general assembly of nuclear fusion device host

Abstract

The invention discloses a central column tool for general assembly of a nuclear fusion device host, and belongs to the technical field of nuclear fusion. The center column tool comprises a center column body which is installed in the center of a foundation pit and used for being connected with a center column embedded part located in the center of the foundation pit; the supporting parts are distributed in the circumferential direction of the center column body at intervals and used for being connected with wall embedded parts. The annular field sleeve annular rail is arranged around the central column body and is mounted on the supporting part; the supporting cross beams are distributed in the circumferential direction of the center column body at intervals, and the supporting cross beams are installed between the adjacent supporting parts; the non-standard fan-shaped section radial beams and the standard fan-shaped section radial beams are alternately distributed in the circumferential direction of the center column body at intervals, one ends of the non-standard fan-shaped section radial beams and the standard fan-shaped section radial beams are connected with the center column body, and the other ends of the non-standard fan-shaped section radial beams are connected with the supporting cross beams; and the circumferential field radial beam is rotatably mounted at the top end of the central column body. The general assembly of the main engine of the nuclear fusion device is carried out through the central column tool, and the general assembly efficiency can be remarkably improved.

Description

Technical Field

[0001] This application belongs to the field of nuclear fusion technology, and in particular relates to a central column tooling for the assembly of the main unit of a nuclear fusion device. Background Technology

[0002] Controlled nuclear fusion typically utilizes a tokamak fusion experimental device to magnetically confine high-temperature plasma, causing a fusion reaction within a vacuum chamber and releasing enormous energy. The core components of a fusion device include the vacuum chamber, a vacuum chamber cold shield, and toroidal field coils. The vacuum chamber is where the plasma directly operates, providing necessary support for its internal components and withstanding its own weight, pressure, and various electromagnetic forces during normal and abnormal operation. The vacuum chamber cold shield reduces the thermal load from radiant heat from the vacuum chamber and conductive heat from the supports, ensuring stable and reliable magnet operation. The toroidal field coils generate a strong magnetic field to confine the plasma and sustain the fusion reaction.

[0003] In related technologies, conventional installation fixtures are designed with lifting devices such as hoisting tools and locking mechanisms based on the interfaces of the components and the lifting structure. The components are then hoisted and installed using these mechanisms, providing a relatively spacious hoisting environment and eliminating the need for pre-assembly. However, the installation of core components of nuclear fusion devices, such as vacuum chambers, vacuum chamber cold shields, and toroidal field coils, involves significant weight, high precision, and confined space. Furthermore, these core components are pre-assembled into sector-shaped segments. Conventional installation fixtures are no longer sufficient to meet the precision and deformation control requirements during construction and pose a risk of collisions with buildings and already installed components, indicating room for improvement. Summary of the Invention

[0004] This application aims to address at least one of the technical problems existing in the related art. To this end, this application proposes a central column tooling for the assembly of the main unit of a nuclear fusion device, which can significantly improve the assembly efficiency.

[0005] In a first aspect, this application provides a central column fixture for the assembly of the main unit of a nuclear fusion device, comprising: The central column body is installed at the center of the foundation pit and is used to connect with the central column embedded part located at the center of the foundation pit; Multiple support parts are spaced apart along the circumference of the central column and are used to connect with the wall embedded parts; A circumferential field-mounted track is provided around the central column and installed on the support portion; Multiple supporting beams are spaced apart along the circumference of the central column, and the supporting beams are installed between adjacent supporting parts; Multiple non-standard sector-shaped radial beams and multiple standard sector-shaped radial beams are alternately spaced along the circumference of the central column, with one end connected to the central column and the other end connected to the supporting crossbeam. A circumferential radial beam is rotatably mounted on the top of the central column.

[0006] In the above technical solution, the main assembly of the nuclear fusion device is carried out using a central column tooling, which can meet the high-precision installation requirements, reduce the assembly risk in narrow installation spaces, and significantly improve the overall assembly efficiency.

[0007] According to one embodiment of this application, the support includes a first support platform and a second support platform spaced apart in the vertical direction, the circumferential field assembly ring rail is installed on the first support platform, and the support beam is installed on the second support platform.

[0008] According to one embodiment of this application, the circumferential field assembly track is located at the end of the first support platform near the wall embedded part, the support beam is located at the end of the second support platform away from the wall embedded part, and the first support platform is higher than the second support platform.

[0009] According to one embodiment of this application, the circumferential field assembly ring rail includes a plurality of arc-shaped tracks spaced apart circumferentially. The arc-shaped tracks are installed between adjacent support portions, and a gap is formed between adjacent arc-shaped tracks. The support beam and the gap correspond radially to the central column.

[0010] According to one embodiment of this application, the ends of the adjacent non-standard sector diameter and the standard sector radial beam that are away from the central column are respectively located within the adjacent gaps.

[0011] According to one embodiment of this application, a first lifting structure is provided on the non-standard sector radial beam, the first lifting structure being used to connect with the non-standard sector assembly; A second lifting structure is provided on the radial beam of the standard sector segment, which is used to connect with the standard sector segment assembly.

[0012] According to one embodiment of this application, the first hoisting structure is used to adjust the vertical position of the non-standard sector segment assembly, and the second hoisting structure is used to adjust the vertical position of the standard sector segment assembly.

[0013] According to one embodiment of this application, a third lifting structure is provided on the circumferential field radial beam, the third lifting structure being used to install the circumferential field coil to the non-standard sector segment assembly.

[0014] According to one embodiment of this application, one end of the circumferential radial beam is connected to the top of the central column, and the other end moves on the circumferential track of the circumferential field assembly.

[0015] According to one embodiment of this application, the nuclear fusion device includes a Dewar base installed at the center of the pit, a central column embedded part located below the Dewar base and vertically corresponding to the central hole of the Dewar base, and the central column body passing through the central hole of the Dewar base.

[0016] Additional aspects and advantages of this application 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 this application. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this application 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 one of the structural schematic diagrams of the central column tooling provided in the embodiments of this application; Figure 2 yes Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is the second structural schematic diagram of the central column tooling provided in the embodiments of this application; Figure 4 This is the third structural schematic diagram of the central column tooling provided in the embodiments of this application; Figure 5 This is the fourth structural schematic diagram of the central column tooling provided in the embodiments of this application.

[0018] Figure label: Central column fixture 1; Central column body 10; Support section 20, first support platform 210, second support platform 220, support segment 230; The circumferential field assembly includes a 30mm ring rail, a 310mm arc track, and a 320mm clearance. Support beam 40, Non-standard sector radial beam 50, standard sector radial beam 60, circumferential field radial beam 70; 2. Wall, 3. Non-standard sector segment component, 4. Standard sector segment component. Detailed Implementation

[0019] The embodiments of this application 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 this application, and should not be construed as limiting this application.

[0020] This application aims to address at least one of the technical problems existing in the related art. To this end, this application proposes a central column tooling for the assembly of the main unit of a nuclear fusion device, which can significantly improve the assembly efficiency.

[0021] The following is for reference. Figures 1-5 This application describes a central column fixture for assembling the main unit of a nuclear fusion device according to an embodiment of the present application.

[0022] like Figure 1 As shown, the center column fixture 1 includes: The central column body 10 is installed at the center of the foundation pit and is used to connect with the central column embedded part located at the center of the foundation pit. Multiple support parts 20 are distributed circumferentially along the central column 10 for connection with the embedded parts of the wall 2; The circumferential field assembly ring rail 30 is arranged around the central column 10 and installed on the support part 20; Multiple support beams 40 are distributed at intervals along the circumference of the central column 10, and the support beams 40 are installed between adjacent support parts 20. Multiple non-standard sector-shaped radial beams 50 and multiple standard sector-shaped radial beams 60 are alternately distributed along the circumference of the central column 10, with one end connected to the central column 10 and the other end connected to the supporting crossbeam 40. The circumferential radial beam 70 is rotatably mounted on the top of the central column 10.

[0023] like Figure 1 and Figure 4 As shown, in this embodiment, the main unit of the nuclear fusion device includes, but is not limited to, a vacuum chamber, a vacuum chamber cold shield, and a toroidal field coil. The main unit assembly is the core component of the nuclear fusion device. It mainly integrates components such as the vacuum chamber, vacuum chamber cold shield, and toroidal field coil into the main unit pit through the central column tooling 1. The entire assembly process involves the precise installation of hundreds of tons of components, with a precision requirement of millimeters.

[0024] The central column fixture 1 includes a central column body 10, which serves as the main load-bearing body to support part of the weight and lateral shear force of each component. The central column body 10 includes, but is not limited to, a reinforced concrete column. The bottom of the central column body 10 is connected to a central column embedded part located in the center of the foundation pit. The central column body 10 is installed at the geometric center of the tokamak nuclear fusion device during the main assembly to provide a positioning reference for heavy components installed circumferentially around the center.

[0025] It should be noted that the center column embedded part is set at the bottom of the foundation pit. It is a metal component that is pre-embedded in the concrete foundation of the main structure of the reactor during the pouring of concrete. The center column embedded part is provided with at least a precision-machined threaded hole or a positioning pin hole for a firm and precise connection with the center column body 10 of the center column tooling 1.

[0026] The central column fixture 1 also includes multiple support parts 20, which are connected to the embedded parts in the wall 2. The multiple support parts 20 are distributed circumferentially along the central column body 10, forming a support structure around the upper part of the central column body 10 on the wall 2. The support parts 20 are lower than the top of the central column body 10 in the height direction.

[0027] For example, the support portion 20 includes, but is not limited to, sixteen.

[0028] The central column fixture 1 also includes a circumferential field assembly ring rail 30 and multiple support beams 40. The circumferential field assembly ring rail 30 and multiple support beams 40 are all installed on the support part 20, and the circumferential field assembly ring rail 30 and multiple support beams 40 are arranged around the central column body 10. The multiple support beams 40 are distributed circumferentially around the central column body 10. Each support beam 40 is installed on two adjacent support parts 20, that is, the middle part of the support beam 40 corresponds to the gap 320 between the adjacent support parts 20, and the end of the support beam 40 is installed on the support part 20.

[0029] The central column fixture 1 also includes multiple non-standard fan-shaped radial beams 50 spaced apart circumferentially along the central column body 10, and multiple standard fan-shaped radial beams 60 spaced apart circumferentially along the central column body 10. The non-standard fan-shaped radial beams 50 and the standard fan-shaped radial beams 60 are alternately spaced apart, that is, the non-standard fan-shaped radial beams 50 are located between adjacent standard fan-shaped radial beams 60, and vice versa.

[0030] In addition, one end of the non-standard fan-shaped radial beam 50 is connected to the central column 10, and the other end is connected to the supporting beam 40. One end of the standard fan-shaped radial beam 60 is connected to the central column 10, and the other end is connected to the supporting beam 40.

[0031] For example, at least part of the core structure of a nuclear fusion device can be composed of four non-standard sector segment assemblies 3 and four standard sector segment assemblies 4. Non-standard sector segment radial beams 50 are used to install non-standard sector segment assemblies 3, and standard sector segment radial beams 60 are used to install standard sector segment assemblies 4. That is, the central column fixture 1 can include four non-standard sector segment radial beams 50 and four standard sector segment radial beams 60. The angle between adjacent non-standard sector segment radial beams 50 is 90°, the angle between adjacent standard sector segment radial beams 60 is 90°, and the angle between non-standard sector segment radial beams 50 and standard sector segment radial beams 60 is 45°.

[0032] The central column fixture 1 also includes a circumferential radial beam 70, which is rotatably mounted on the top of the central column body 10 and is connected to the central column body 10. The other end is connected to the circumferential field set ring rail 30.

[0033] It should be noted that the non-standard sector radial beam 50, the standard sector radial beam 60, and the circumferential field radial beam 70 all extend radially along the central column 10, and one end is connected to the central column 10. The central column 10 serves as the support point for the non-standard sector radial beam 50, the standard sector radial beam 60, and the circumferential field radial beam 70.

[0034] For example, the entire central column fixture 1 has dimensions of 19×19m and weighs approximately 500 tons.

[0035] It should be noted that the center column fixture 1 can be disassembled and installed at any time during the final assembly process. Taking the circumferential field assembly ring rail 30 as an example, the circumferential field assembly ring rail 30 is mainly used to install the circumferential field coil. Before installing the circumferential field coil, the circumferential field assembly ring rail 30 can be left uninstalled.

[0036] Controlled nuclear fusion typically utilizes a tokamak fusion experimental device to magnetically confine high-temperature plasma, causing a fusion reaction within a vacuum chamber and releasing enormous energy. The core components of a fusion device include the vacuum chamber, a vacuum chamber cold shield, and toroidal field coils. The vacuum chamber is where the plasma directly operates, providing necessary support for its internal components and withstanding its own weight, pressure, and various electromagnetic forces during normal and abnormal operation. The vacuum chamber cold shield reduces the thermal load from radiant heat from the vacuum chamber and conductive heat from the supports, ensuring stable and reliable magnet operation. The toroidal field coils generate a strong magnetic field to confine the plasma and sustain the fusion reaction.

[0037] In related technologies, conventional installation fixtures are designed with lifting devices such as hoisting tools and locking mechanisms based on the interfaces of the components and the lifting structure. The components are then hoisted and installed using these mechanisms, providing a relatively spacious hoisting environment and eliminating the need for pre-assembly. However, the installation of core components of nuclear fusion devices, such as vacuum chambers, vacuum chamber cold shields, and toroidal field coils, involves significant weight, high precision, and confined space. Furthermore, these core components are pre-assembled into sector-shaped segments. Conventional installation fixtures are no longer sufficient to meet the precision and deformation control requirements during construction and pose a risk of collisions with buildings and already installed components, indicating room for improvement.

[0038] The central column fixture 1 of this application can adjust the position of the central column body 10 of the circumferential field coil in multiple directions, such as circumferential and axial, through the circumferential field radial beam 70 and the circumferential field set ring rail 30. It can also adjust the position of the non-standard sector segment assembly 3 in multiple directions through the non-standard sector segment radial beam 50 and the support crossbeam 40, and adjust the position of the standard sector segment assembly 4 in multiple directions through the standard sector segment radial beam 60 and the support crossbeam 40. This can achieve the fixation and adjustment of the core components of the nuclear fusion device that cannot be done by conventional hoisting fixtures, thereby reducing interference between components and improving installation accuracy.

[0039] According to the embodiment of this application, the central column fixture 1 for the main assembly of a nuclear fusion device can meet the high-precision installation requirements, reduce the assembly risk in a narrow installation space, and significantly improve the assembly efficiency by assembling the main assembly of the nuclear fusion device through the central column fixture 1.

[0040] In some embodiments, such as Figure 2 and Figure 3 As shown, the support part 20 includes a first support platform 210 and a second support platform 220 that are spaced apart in the vertical direction. The circumferential field assembly ring rail 30 is installed on the first support platform 210, and the support beam 40 is installed on the second support platform 220.

[0041] In this embodiment, the support part 20 includes a support section 230, a first support platform 210, and a second support platform 220. The support section 230 is located at the end of the support part 20 that is radially away from the central column 10 and parallel to the wall 2. It is connected to the embedded part of the wall 2 to fix the support part 20 to the wall 2. The first support platform 210 and the second support platform 220 of the support part 20 are both horizontally arranged and spaced apart in the vertical direction. The circumferential field assembly ring rail 30 is installed on the first support platform 210, and the support beam 40 is installed on the second support platform 220.

[0042] In addition, the middle part of the support beam 40 is suspended, the end of the support beam 40 contacts the second support platform 220 of the support part 20, and does not exceed one of the edges of the second support platform 220 that extends radially along the central column 10, and at least a portion of the circumferential field assembly ring rail 30 contacts the first support platform 210.

[0043] In some embodiments, such as Figure 1 and Figure 2 As shown, the circumferential field assembly ring rail 30 is located at the end of the first support platform 210 near the embedded part of the wall 2, and the support beam 40 is located at the end of the second support platform 220 away from the embedded part of the wall 2, and the first support platform 210 is higher than the second support platform 220.

[0044] In this embodiment, the support section 230 located at the end of the support part 20 that is radially away from the central column 10 is connected to the embedded part of the wall 2, thereby fixing the support part 20 to the wall 2. The first support platform 210 and the second support platform 220 of the support part 20 are both horizontally arranged and are spaced apart in the vertical direction. The first support platform 210 is higher than the second support platform 220, that is, the circumferential field set ring rail 30 is higher than the support beam 40.

[0045] Among them, the circumferential field assembly ring rail 30 is located at the end of the first support platform 210 near the embedded part of the wall 2, and the support beam 40 is located at the end of the second support platform 220 away from the embedded part of the wall 2. The projections of the circumferential field assembly ring rail 30 and the support beam 40 in the vertical direction do not coincide, that is, the circumferential field assembly ring rail 30 is close to the wall 2, and the support beam 40 is located on the side of the circumferential field assembly ring rail 30 facing the central column 10.

[0046] In some embodiments, such as Figure 1 and Figure 2 As shown, the circumferential field assembly ring rail 30 includes multiple arc-shaped tracks 310 spaced apart along the circumference. The arc-shaped tracks 310 are installed between adjacent support parts 20, and a gap 320 is formed between adjacent arc-shaped tracks 310. The support beam 40 and the gap 320 correspond radially to the central column body 10.

[0047] In this embodiment, the circumferential field assembly ring rail 30 is arranged around the central column 10, and the circumferential field assembly ring rail 30 includes a plurality of arc-shaped tracks 310 spaced apart along the circumference. Each arc-shaped track 310 is installed on two adjacent support parts 20, and the two support parts 20 for installing one arc-shaped track 310 correspond to two adjacent support beams 40 respectively. That is, a gap 320 is formed between adjacent arc-shaped tracks 310, and the support beams 40 and the gap 320 correspond radially to the central column 10.

[0048] For example, taking the first support part 20 as an example, one of the support parts 20 is defined as the first support part 20, and the support parts 20 adjacent to the first support part 20 are the second support part 20 and the third support part 20, respectively. The arc-shaped track 310 is installed on the first support part 20 and the second support part 20, and the support beam 40 is installed on the first support part 20 and the third support part 20.

[0049] In addition, the circumferential field assembly ring track 30 includes, but is not limited to, eight circumferentially spaced arc-shaped tracks 310.

[0050] In some embodiments, such as Figure 1 and Figure 2 As shown, the ends of adjacent non-standard sector radial beams 50 and standard sector radial beams 60 that are away from the central column 10 are located within adjacent gaps 320, respectively.

[0051] In this embodiment, non-standard sector radial beams 50 and standard sector radial beams 60 are alternately distributed, that is, non-standard sector radial beams 50 are located between adjacent standard sector radial beams 60, and standard sector radial beams 60 are located between adjacent non-standard sector radial beams 50.

[0052] One end of the non-standard fan-shaped radial beam 50 and the standard fan-shaped radial beam 60 is connected to the central column 10, and the other end is connected to the supporting crossbeam 40, with the ends located within the gap 320 between adjacent arc-shaped tracks 310.

[0053] The arc-shaped track 310 is equipped with a drive mechanism that can drive the non-standard sector radial beam 50 and the standard sector radial beam 60 to move circumferentially along the central column 10, but the movement range is limited to within the gap 320. Neither the non-standard sector radial beam 50 nor the standard sector radial beam 60 contacts the arc-shaped track 310. After the non-standard sector radial beam 50 or the standard sector radial beam 60 is adjusted into place, it can be mechanically locked.

[0054] In some embodiments, such as Figure 4 and Figure 5 As shown, a first lifting structure is provided on the non-standard fan-shaped radial beam 50, which is used to connect with the non-standard fan-shaped assembly 3; A second lifting structure is provided on the standard sector radial beam 60, which is used to connect with the standard sector assembly 4.

[0055] In this embodiment, both the non-standard fan-shaped radial beam 50 and the standard fan-shaped radial beam 60 are equipped with a hoisting structure. The hoisting structure is used to move the part to be installed in the vertical direction. The hoisting structure can also make small-range attitude adjustments to the part to be installed according to the actual situation when the part is about to be installed, thereby reducing the risk of collision.

[0056] The first hoisting structure is used to adjust the vertical position of the non-standard sector segment assembly 3, and the second hoisting structure is used to adjust the vertical position of the standard sector segment assembly 4.

[0057] The non-standard fan-shaped radial beam 50 is equipped with a first hoisting structure, which is mainly used to drive the non-standard fan-shaped component 3 to move in the vertical direction. The standard fan-shaped radial beam 60 is equipped with a second hoisting structure, which is used to drive the standard fan-shaped component 4 to move in the vertical direction.

[0058] In addition, the hoisting structure is not limited to a uniform distribution; it can be adjusted according to the actual center of gravity position of the component to be installed in order to compensate for the irregularity and center of gravity offset of the component, thereby reducing the risk of swaying and tilting caused by instability of the center of gravity.

[0059] In some embodiments, a third lifting structure is provided on the circumferential field radial beam 70 for installing the circumferential field coil to the non-standard sector segment assembly 3.

[0060] In this embodiment, a third hoisting structure is provided on the circumferential field radial beam 70. The third hoisting structure is used to drive the circumferential field coil to move in the vertical direction. The third hoisting structure can also make small-range attitude adjustments to the circumferential field coil according to the actual situation when the circumferential field coil is about to be in place, thereby reducing the risk of collision.

[0061] In addition, the third hoisting structure is not limited to uniform distribution. It can be adjusted according to the actual center of gravity position of the circumferential field coil to compensate for the irregularity and center of gravity offset of the circumferential field coil, thereby reducing the risk of swaying and tilting caused by instability of the center of gravity.

[0062] In some embodiments, such as Figure 1 As shown, one end of the circumferential field radial beam 70 is connected to the top of the central column 10, and the other end moves on the circumferential field assembly ring rail 30.

[0063] In this embodiment, one end of the circumferential radial beam 70 is rotatably connected to the top of the central column 10, and the other end is engaged with the drive structure on the circumferential field mounting ring rail 30 to drive the circumferential radial beam 70 to rotate around the central column 10.

[0064] The circumferential field radial beam 70 can drive the circumferential field coil to rotate around the central column 10, thereby assembling the circumferential field coil onto the non-standard sector segment assembly 3.

[0065] Furthermore, at least part of the core structure of the nuclear fusion device can be composed of four non-standard sector segment assemblies 3 and four standard sector segment assemblies 4, wherein the standard sector segment assembly 4 is formed by assembling at least a 1 / 8 vacuum chamber, a 1 / 8 vacuum chamber cold screen and two circumferential field coils, and the non-standard sector segment assembly 3 is formed by assembling at least a 1 / 8 vacuum chamber and a 1 / 8 vacuum chamber cold screen.

[0066] During the final assembly process, the non-standard sector segment assembly 3 is installed first and placed symmetrically to reduce the risk of eccentricity of the central column tooling 1 due to uneven weight distribution. Then, the standard sector segment assembly 4 is installed and placed symmetrically. After the standard sector segment assembly 4 and the non-standard sector segment assembly 3 are installed, the circumferential field coil is assembled to the non-standard sector segment assembly 3 through the circumferential field radial beam 70.

[0067] It should be noted that the installation accuracy of the vacuum chamber and the circumferential field coil is ±0.5mm, and the hoisting deformation is controlled within ±1mm. The installation accuracy of the vacuum chamber cold shield is ±1mm, and the hoisting deformation is controlled within ±3mm.

[0068] In some embodiments, the nuclear fusion device includes a Dewar base installed at the center of the pit, a central column embedded part located below the Dewar base and vertically corresponding to the central hole of the Dewar base, and the central column body 10 passing through the central hole of the Dewar base.

[0069] In this embodiment, the nuclear fusion device includes a Dewar base installed at the center of the pit. In nuclear fusion devices, especially tokamak nuclear fusion devices, the Dewar base can also be called a cryostat base or main unit base. The Dewar base in the nuclear fusion device is a giant and extremely robust and precise platform, mainly used to support and position the core components of the entire tokamak nuclear fusion device.

[0070] For example, the Dewar base can be a huge double-walled stainless steel welded structure weighing thousands of tons, with special concrete filling the double walls to increase weight, rigidity and radiation shielding.

[0071] The Dewar base is the basic structure supporting the entire main unit core system. During the assembly of the nuclear fusion device, the Dewar base is first installed in the center of the pit before the main unit is assembled.

[0072] like Figure 4 As shown, the bottom of the central column body 10 of the central column fixture 1 is connected to the ground of the building, and the support part 20 of the central column fixture 1 is connected to the wall 2 of the building, thereby fixing the central column fixture 1.

[0073] The space for assembling the main unit of a nuclear fusion device is narrow, and conventional hoisting methods cannot meet the requirements for precision and deformation control during construction. There is also a risk of collision with the building and installed components. This application can achieve the fixation and adjustment of the core components of the nuclear fusion device that cannot be done with conventional hoisting tools, thereby reducing interference between components and improving installation accuracy.

[0074] It should be noted that the embodiments listed above are merely illustrative and not an exhaustive list of the present solution. Any modifications, equivalent substitutions, improvements or variations made within the spirit and principles of the present invention, as well as any other reasonable implementation mode, should be included within the protection scope of the present invention.

[0075] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0076] In the description of this application, 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", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0077] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0078] In the description of this application, "multiple" means two or more.

[0079] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0080] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0081] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. 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.

[0082] Although embodiments of this application 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 this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A central column tooling for the assembly of the main unit of a nuclear fusion device, characterized in that, include: The central column body is installed at the center of the foundation pit and is used to connect with the central column embedded part located at the center of the foundation pit; Multiple support parts are spaced apart along the circumference of the central column and are used to connect with the wall embedded parts; A circumferential field-mounted track is provided around the central column and installed on the support portion; Multiple supporting beams are spaced apart along the circumference of the central column, and the supporting beams are installed between adjacent supporting parts; Multiple non-standard sector-shaped radial beams and multiple standard sector-shaped radial beams are alternately spaced along the circumference of the central column, with one end connected to the central column and the other end connected to the supporting crossbeam. A circumferential radial beam is rotatably mounted on the top of the central column.

2. The central column fixture for the main assembly of a nuclear fusion device according to claim 1, characterized in that, The support includes a first support platform and a second support platform that are spaced apart in the vertical direction. The circumferential field assembly ring rail is installed on the first support platform, and the support beam is installed on the second support platform.

3. The central column fixture for the main assembly of a nuclear fusion device according to claim 2, characterized in that, The circumferential field assembly track is located at the end of the first support platform near the wall embedded part, and the support beam is located at the end of the second support platform away from the wall embedded part, with the first support platform being higher than the second support platform.

4. The central column fixture for the main assembly of a nuclear fusion device according to claim 1, characterized in that, The circumferential field assembly includes multiple arc-shaped tracks spaced apart circumferentially. The arc-shaped tracks are installed between adjacent support parts, and gaps are formed between adjacent arc-shaped tracks. The support beam and the gaps correspond radially to the central column.

5. The central column fixture for the main assembly of a nuclear fusion device according to claim 4, characterized in that, The ends of the adjacent non-standard sector segment diameter and the standard sector segment radial beam that are furthest from the central column are respectively located within the adjacent gaps.

6. The central column fixture for the main assembly of a nuclear fusion device according to claim 1, characterized in that, The non-standard fan-shaped radial beam is provided with a first lifting structure, which is used to connect with the non-standard fan-shaped assembly. A second lifting structure is provided on the radial beam of the standard sector segment, which is used to connect with the standard sector segment assembly.

7. The central column fixture for the main assembly of a nuclear fusion device according to claim 6, characterized in that, The first hoisting structure is used to adjust the vertical position of the non-standard sector segment assembly, and the second hoisting structure is used to adjust the vertical position of the standard sector segment assembly.

8. The central column fixture for the main assembly of a nuclear fusion device according to claim 6, characterized in that, A third hoisting structure is provided on the circumferential field radial beam, which is used to install the circumferential field coil to the non-standard sector segment assembly.

9. The central column fixture for the main assembly of a nuclear fusion device according to any one of claims 1-8, characterized in that, One end of the radial beam of the circumferential field is connected to the top of the central column, and the other end moves on the ring track of the circumferential field assembly.

10. The central column tooling for the main assembly of a nuclear fusion device according to any one of claims 1-8, characterized in that, The nuclear fusion device includes a Dewar base installed at the center of the pit, a central column embedded part located below the Dewar base and vertically corresponding to the central hole of the Dewar base, and the central column body passing through the central hole of the Dewar base.

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