Polar field coil supporting device and jacking method of polar field coil

Abstract

The invention relates to the technical field of nuclear fusion device installation, and discloses a polar field coil supporting device and a polar field coil jacking method.The polar field coil supporting device comprises a base, a vertical adjusting part and a horizontal adjusting part, and the horizontal adjusting part, the vertical adjusting part and the base are arranged in the vertical direction; the horizontal adjusting part comprises a first base, a horizontal supporting seat, a first adjusting mechanism and a second adjusting mechanism, and the first base is connected with the vertical adjusting part; the horizontal supporting seat is movably arranged on the first base in the first direction and the second direction. The first adjusting mechanism is arranged on the first base and drives the horizontal supporting base to move in the first direction. The second adjusting mechanism is arranged on the first base and drives the horizontal supporting base to move in the second direction. According to the polar field coil supporting device, the positions of the polar field coil in the vertical direction and the circumferential direction can be accurately adjusted, and the installation requirement of the polar field coil at the bottom of a nuclear fusion device is met.

Description

Technical Field

[0001] This invention relates to the field of nuclear fusion device installation technology, and in particular to a poloidal field coil support device and a method for lifting the poloidal field coil. Background Technology

[0002] The PF magnet system is a core component of a nuclear fusion device. It generates a powerful magnetic field to accelerate plasma and sustain the nuclear fusion reaction, which is crucial for achieving controlled nuclear fusion. The bottom poloidal field coil is an important part of the PF magnet system, and its installation procedures, temporary placement fixtures, and lifting fixture design and installation methods all significantly affect the accuracy of the bottom poloidal field coil's installation position.

[0003] Due to the large overall size of the bottom poloidal field coils (PF6: φ6.5×4m, PF7: φ4.5×4.2m), their heavy weight (PF6 coil weighs approximately 85 tons, PF7 coil weighs approximately 55 tons), and the high installation accuracy (±0.5mm), and the fact that the surface insulation of the poloidal field coils must not be damaged during temporary placement and lifting, and the overall levelness of the magnets must be controlled within 2mm during lifting, higher requirements are placed on the temporary placement and lifting fixtures. This ensures that the bottom poloidal field coils are positioned and adjusted according to measurement data during temporary placement and lifting to ensure that the PF6 and PF7 coils are in a horizontal state during lifting. Meanwhile, when the bottom poloidal field coil is installed in place, the position and orientation of the bottom poloidal field coil are adjusted according to the measurement data to ensure that the bottom poloidal field coil meets the installation accuracy requirements, and at the same time ensure that the position of the superconducting connector is within the design position deviation. This means that the temporary placement fixture and lifting fixture need to be designed as a multi-support, multi-adjustment mechanism and heavy structure according to the size and weight of the bottom poloidal field coil magnet, the design position of the fixture, space constraints and the requirements for adjusting the orientation (X direction, Y direction, Z direction).

[0004] In related technologies, conventional temporary placement and lifting fixtures are fixed to a temporary support platform based on the component interface, and adjusted in one direction using lead screws, motors, or hydraulic cylinders. Once adjusted to the installation position, they are fixed, without requiring precise circumferential adjustment and positioning. However, there are gaps in the design and installation of temporary placement and lifting fixtures for nuclear fusion devices, which are large-scale, heavy-load, have narrow installation spaces, require high installation precision, and necessitate multiple lifting and precise circumferential adjustment and positioning. This is mainly because conventional temporary placement and lifting fixtures are functionally limited and have low installation precision, making it difficult to meet the installation requirements of the bottom poloidal field coils in nuclear fusion devices. Summary of the Invention This invention aims to address the problem that there is no reliable poloidal field coil support device in the prior art to meet the installation requirements of the poloidal field coil at the bottom of a nuclear fusion device. Therefore, one objective of this invention is to provide a poloidal field coil support device that can precisely adjust the position of the poloidal field coil in both the vertical and circumferential directions, thereby meeting the installation requirements of the poloidal field coil at the bottom of a nuclear fusion device.

[0005] The present invention also aims to provide a method for lifting a poloidal field coil, using the aforementioned support device for the poloidal field coil.

[0006] According to an embodiment of the present invention, a poloidal field coil support device is used to support the poloidal field coil of the PF magnet system of a nuclear fusion device. The poloidal field coil support device includes a base, a vertical adjustment part, and a horizontal adjustment part. The horizontal adjustment part, the vertical adjustment part, and the base are arranged along a vertical direction. The horizontal adjustment part and the vertical adjustment part are connected, and one of them is disposed on the base. The horizontal adjustment part includes: a first base connected to the vertical adjustment part; a horizontal support seat movably disposed on the first base along a first direction and a second direction, wherein the first direction is perpendicular to the second direction, and the first direction and the second direction are perpendicular to the vertical direction; a first adjustment mechanism disposed on the first base and driving the horizontal support seat to move along the first direction; and a second adjustment mechanism disposed on the first base and driving the horizontal support seat to move along the second direction.

[0007] According to an embodiment of the present invention, the poloidal field coil support device can adjust the vertical position of the poloidal field coil by means of a vertical adjustment part. By setting the horizontal adjustment part to include a first base, a horizontal support base, a first adjustment mechanism and a second adjustment mechanism, the horizontal adjustment part can realize the position adjustment of the poloidal field coil in the circumferential direction, thereby ensuring the positional accuracy and orientation of the poloidal field coil during temporary support and lifting, so as to meet the installation requirements of poloidal field coils with large weight, large size and high positional accuracy.

[0008] In some embodiments of the present invention, the first adjustment mechanism includes two first adjustment members, which are disposed at both ends of the horizontal support in the first direction and are retractable along the first direction, and the retraction directions of the two first adjustment members are opposite; the second adjustment mechanism includes two second adjustment members, which are disposed at both ends of the horizontal support in the second direction and are retractable along the second direction, and the retraction directions of the two second adjustment members are opposite.

[0009] In some embodiments of the present invention, the horizontal adjustment unit includes: a first displacement detection element, wherein each first adjustment element is provided with a first displacement detection element, and the first displacement detection element is used to detect the extension and retraction stroke of the corresponding first adjustment element; and a second displacement detection element, wherein each second adjustment element is provided with a second displacement detection element, and the second displacement detection element is used to detect the extension and retraction stroke of the corresponding second adjustment element.

[0010] In some embodiments of the present invention, the horizontal adjustment part includes a locking mechanism for locking or unlocking the horizontal support and the first base.

[0011] In some embodiments of the present invention, the horizontal support includes a base body, an upper body, and a transition plate. The upper body and the base body are connected by the transition plate. The transition plate protrudes from the bottom of the upper body and the base body. The first adjustment mechanism, the second adjustment mechanism, the first locking mechanism, and the second locking mechanism act on the base body. The horizontal adjustment part includes a bearing plate and a lower pressure plate. The bearing plate is disposed on the first base and fits against the bottom of the base body. The lower pressure plate is connected to the first base and fits downward against the protruding portion of the transition plate.

[0012] In some embodiments of the present invention, the locking mechanism includes two first locking bolts and two second locking bolts. The two first locking bolts abut against both ends of the base body in a third direction, and the two second locking bolts abut against both ends of the base body in a fourth direction. The third direction is perpendicular to the fourth direction, and both the third direction and the fourth direction are perpendicular to the vertical direction.

[0013] In some embodiments of the present invention, the vertical adjustment part includes: a second base connected to the base or the first base; a connecting column disposed on the second base and having a plurality of columns arranged circumferentially around the second base; a fixing plate disposed at one end of the connecting column away from the second base and having a clearance hole; a vertical support seat disposed on the side of the fixing plate away from the second base; a first guide column disposed on the second base and passing through the clearance hole to guide and cooperate with the vertical support seat, wherein a plurality of first guide columns are arranged circumferentially around the second base; a second guide column disposed on the fixing plate and guiding and cooperating with the vertical support seat, wherein a plurality of second guide columns are arranged circumferentially around the vertical support seat; and a hydraulic lifting component disposed on the second base and passing through the clearance hole to connect with the vertical support seat.

[0014] In some embodiments of the present invention, the vertical adjustment unit includes a third displacement detection element for detecting the lifting stroke of the hydraulic lifting element.

[0015] In some embodiments of the present invention, the vertical adjustment part includes a plurality of adjustment pads, which are detachably connected in sequence along the vertical direction. The vertical support base is connected to the first base or used to support the poloidal field coil through the plurality of adjustment pads.

[0016] According to an embodiment of the present invention, a method for lifting a poloidal field coil uses a central column fixture and a poloidal field coil support device as described above. The central column fixture includes a central column, a support beam, and a support base. Multiple support beams are arranged circumferentially around the central column, and the support base is located below the support beams. The method includes: arranging multiple poloidal field coil support devices around the circumference of the central column according to the installation position of the poloidal field coil; installing bases on the support beams at corresponding positions, with each base directly supported by a Dewar base via the support base; connecting the magnet clamp of the poloidal field coil to the corresponding poloidal field coil support device; adjusting the height of the poloidal field coil by the cooperation of the vertical adjustment parts of the multiple poloidal field coil support devices; and adjusting the circumferential position of the poloidal field coil by the cooperation of the horizontal adjustment parts of the multiple poloidal field coil support devices.

[0017] According to the poloidal field coil lifting method of the present invention, the position of the poloidal field coil in the vertical and circumferential directions can be precisely adjusted by the poloidal field coil support device to meet the installation requirements of the poloidal field coil at the bottom of the nuclear fusion device.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 A schematic diagram of a poloidal field coil support device supporting a poloidal field coil provided in some embodiments of the present invention; Figure 2 This is a schematic diagram of the structure of a poloidal field coil support device provided in some embodiments of the present invention; Figure 3 A front view of the horizontal adjustment section provided in some embodiments of the present invention; Figure 4 for Figure 3 A sectional view taken along direction AA; Figure 5 A cross-sectional view of the horizontal adjustment section provided in some embodiments of the present invention; Figure 6This is a schematic diagram of the structure of the vertical adjustment part provided in some embodiments of the present invention; Figure 7 This is a cross-sectional view of the vertical adjustment section provided in some embodiments of the present invention; Figure 8 Cross-sectional view of a portion of the vertical adjustment section provided in some embodiments of the present invention. Figure 1 ; Figure 9 Cross-sectional view of a portion of the vertical adjustment section provided in some embodiments of the present invention. Figure 2 ; Figure 10 A schematic diagram illustrating the fit between the poloidal coil support device and the central column tooling provided in some embodiments of the present invention; Figure 11 A cross-sectional view of a poloidal field coil support device provided in some embodiments of the present invention, showing a poloidal field coil supported on a Dewar base; Figure 12 This is a schematic diagram of the structure of a poloidal field coil temporarily placed inside a building, provided for some embodiments of the present invention; Figure 13 This is a flowchart of a method for lifting a poloidal field coil according to some embodiments of the present invention.

[0020] Figure label: 100. Pole-field coil support device; 10. Base; 20. Vertical adjustment part; 21. Second base; 22. Connecting column; 23. Fixing plate; 23a. Clearance hole; 24. Vertical support seat; 25. First guide column; 26. Second guide column; 27. Hydraulic lifting component; 28. Adjusting pad; 29. ​​Third displacement detection component; 30. Horizontal adjustment unit; 31. First base; 32. Horizontal support base; 321. Base body; 322. Upper body; 323. Adapter plate; 33. First adjusting mechanism; 331. First adjusting component; 34. Second adjusting mechanism; 342. Second adjusting component; 35. Locking mechanism; 351. First locking bolt; 352. Second locking bolt; 36. First displacement detection element; 37. Bearing plate; 371. First plate body; 372. Second plate body; 38. Lower pressure plate; 39. Second displacement detection element; 200, Central column fixture; 210, Central column; 220, Support beam; 230, Support base column; 300, Pole-field coil; 310, First pole-field coil; 320, Second pole-field coil; 3201, Second magnet clamp; 400, Dewar base; 500, Building. Detailed Implementation

[0021] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

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

[0024] In the description of this invention, unless otherwise stated, "a plurality of" means two or more. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] The following is for reference. Figures 1-9 The present invention describes a poloidal field coil support device 100 according to an embodiment of the present invention.

[0026] like Figures 1 to 3 As shown, the poloidal field coil support device 100 of this embodiment of the invention is used to support the poloidal field coil 300 of the PF magnet system of a nuclear fusion device. The poloidal field coil support device 100 includes a base 10, a vertical adjustment part 20 and a horizontal adjustment part 30. The horizontal adjustment part 30, the vertical adjustment part 20 and the base 10 are arranged in the vertical direction. The horizontal adjustment part 30 and the vertical adjustment part 20 are connected and one of them is provided on the base 10.

[0027] The horizontal adjustment unit 30 includes a first base 31, a horizontal support 32, a first adjustment mechanism 33, and a second adjustment mechanism 34. The first base 31 is connected to the vertical adjustment unit 20. The horizontal support 32 is movably mounted on the first base 31 along a first direction and a second direction, wherein the first direction is perpendicular to the second direction, and the first and second directions are perpendicular to the vertical direction. The first adjustment mechanism 33 is mounted on the first base 31 and drives the horizontal support 32 to move along the first direction. The second adjustment mechanism 34 is mounted on the first base 31 and drives the horizontal support 32 to move along the second direction.

[0028] The base 10 can refer to the component used to install and support the vertical adjustment part 20 and the horizontal adjustment part 30, and can be, but is not limited to, alloy steel, stainless steel, aluminum alloy, and composite materials, etc. The base 10 can be, but is not limited to, a frame structure, a plate structure, or a beam structure, etc.

[0029] Vertical adjustment section 20 may refer to a component or mechanism that adjusts the vertical position of the poloidal field coil 300, see reference. Figure 1 and Figure 2 The vertical direction can be the up-down direction shown in the figure. The horizontal adjustment section 30 refers to a mechanism for adjusting the position of the poloidal field coil 300 in the circumferential direction. The horizontal adjustment section 30, the vertical adjustment section 20, and the base 10 are arranged vertically, with the horizontal adjustment section 30 and the vertical adjustment section 20 connected. Optionally, the horizontal adjustment section 30 can be located on the base 10, and the vertical adjustment section 20 can be located on top of the horizontal adjustment section 30. Optionally, refer to... Figure 2 The vertical adjustment part 20 can be provided on the base 10, and the horizontal adjustment part 30 is provided on the top of the vertical adjustment part 20.

[0030] In the above technical solution, the horizontal adjustment part 30 includes a first base 31, a horizontal support 32, a first adjustment mechanism 33, and a second adjustment mechanism 34. The first base 31 can refer to a component connecting to the vertical adjustment part 20, and can be, but is not limited to, a frame structure, a plate structure, or a beam structure, etc. The connection method between the first base 31 and the vertical adjustment part 20 can be, but is not limited to, snap-fit, bolt connection, riveting, etc. The horizontal support 32 can refer to a component that can move along a first direction and a second direction, and can be, but is not limited to, alloy steel, stainless steel, aluminum alloy, and composite materials, etc. The first adjustment mechanism 33 can refer to a component connected to the first base 31 and having an adjustment stroke along the first direction. The second adjustment mechanism 34 can refer to a component connected to the second base 21 and having an adjustment stroke along the second direction. The first adjustment mechanism 33 and the second adjustment mechanism 34 can be, but are not limited to, hydraulic cylinders, pneumatic cylinders, electric push rods, and wedge block adjustment mechanisms, etc. For example, refer to... Figures 2 to 4 The first direction can be left or right, and the second direction can be front or back.

[0031] To facilitate understanding of the poloidal field coil support device 100 in this embodiment of the invention, in conjunction with Figures 1 to 12 This invention describes the application scenario of the poloidal field coil support device 100 in an embodiment of the present invention. During the installation of a nuclear fusion device, the Dewar base 400 is placed in the foundation pit of the building 500. A central column fixture 200 is installed at the center of the Dewar base 400. The central column fixture 200 includes a central column 210, a support beam 220, and a support base 230. There are multiple support beams 220, which are circumferentially spaced around the central column 210. Each support beam 220 is supported on the Dewar base 400 by the support base 230. The poloidal field coil 300 is temporarily supported and lifted on the central column fixture 200 by the poloidal field coil support device 100.

[0032] The poloidal field coil 300 may include a first poloidal field coil 310 and a second poloidal field coil 320. Both the first and second poloidal field coils are hollow annular structures. The first poloidal field coil 310 is disposed inside the second poloidal field coil 320. The first poloidal field coil 310 may refer to a PF7 coil, and the second poloidal field coil 320 may refer to a PF6 coil. When supporting the poloidal field coil 300, both the first and second poloidal field coils 310 and 320 may be temporarily supported and lifted using multiple poloidal field coil support devices 100.

[0033] The following explanation uses the temporary support and lifting of the second pole-field coil 320 as an example: When the second poloidal field coil 320 is needed, multiple poloidal field coil support devices 100 are arranged circumferentially around the second poloidal field coil 320. The vertical adjustment part 20 can be located on the base 10, and the horizontal adjustment part 30 is located on top of the vertical adjustment part 20. The horizontal adjustment part 30 is supported by the second magnet clamp 3201 of the second poloidal field coil 320. This prevents the poloidal field coil support device 100 from contacting the insulating layer on the surface of the second poloidal field coil 320, thus preventing damage to the insulating layer and subsequent insulation failure of the second poloidal field coil 320. The vertical adjustment parts 20 of the multiple poloidal field coil support devices 100 work together to adjust the vertical position of the second poloidal field coil 320. When the second poloidal field coil 320 needs to be adjusted in the circumferential direction, the first adjustment mechanism 33 of each horizontal adjustment part 30 drives the horizontal support 32 to make a fine adjustment in the first direction, and the second adjustment mechanism 34 drives the horizontal support 32 to make a fine adjustment in the second direction. Through the coordinated cooperation of the horizontal adjustment parts 30 of the multiple poloidal field coil support devices 100, the position of the poloidal field coil 300 in the circumferential direction can be adjusted.

[0034] Similarly, the adjustment method of the first poloidal field coil 310 is similar to that of the second poloidal field coil 320. The difference is that when the first poloidal field coil 310 is adjusted by multiple poloidal field coil support devices 100, the first poloidal field coil 310 is located on the inside, where the space is relatively narrow and the operation is relatively troublesome. In the poloidal field coil support device 100 used, the horizontal adjustment part 30 is provided on the base 10, the vertical adjustment part 20 is provided on the top of the horizontal adjustment part 30, and the vertical adjustment part 20 is supported on the first magnet clamp of the first poloidal field coil 310 at the corresponding position.

[0035] When supporting and lifting the first poloidal field coil 310 or the second poloidal field coil 320, the number of poloidal field coil support devices 100 can be, but is not limited to, two, three, four, five, six, seven, eight, etc.

[0036] According to an embodiment of the present invention, the poloidal field coil support device 100 can adjust the position of the poloidal field coil 300 in the vertical direction through the vertical adjustment part 20. By setting the horizontal adjustment part 30 to include a first base 31, a horizontal support 32, a first adjustment mechanism 33 and a second adjustment mechanism 34, the horizontal adjustment part 30 can realize the position adjustment of the poloidal field coil 300 in the circumferential direction, thereby ensuring the positional accuracy and orientation of the poloidal field coil 300 during temporary support and lifting, so as to meet the installation requirements of the heavy, large-size and high-positional-accuracy poloidal field coil 300.

[0037] In some embodiments of the present invention, reference is made to Figure 2 , Figure 3 and Figure 4 The first adjustment mechanism 33 includes two first adjustment members 331, which are located at both ends of the horizontal support 32 in a first direction and are retractable along the first direction. The retraction directions of the two first adjustment members 331 are opposite. The second adjustment mechanism 34 includes two second adjustment members 342, which are located at both ends of the horizontal support 32 in a second direction and are retractable along the second direction. The retraction directions of the two second adjustment members 342 are opposite.

[0038] In the above technical solution, the two first adjusting members 331 can act on both ends of the horizontal support 32 in the first direction, so that both ends of the horizontal support 32 in the first direction are subjected to adjusting force, which can improve the stability and reliability of the horizontal support 32 in the first direction. The two second adjusting members 342 can act on both ends of the horizontal support 32 in the second direction, so that both ends of the horizontal support 32 in the second direction are subjected to adjusting force, which can improve the stability and reliability of the horizontal support 32 in the second direction. Thus, the horizontal adjusting part 30 can achieve high-precision adjustment in the first and second directions.

[0039] In some embodiments of the present invention, reference is made to Figure 3 The horizontal adjustment unit 30 includes a first displacement detection element 36 and a second displacement detection element 39. Each first adjustment element 331 is provided with a first displacement detection element 36, which is used to detect the extension and retraction stroke of the corresponding first adjustment element 331. Each second adjustment element 342 is provided with a second displacement detection element 39, which is used to detect the extension and retraction stroke of the corresponding second adjustment element 342.

[0040] The first displacement detection element 36 and the second displacement detection element 39 can be, but are not limited to, laser displacement sensors, grating displacement sensors, inductive displacement sensors, etc.

[0041] In the above technical solution, the first displacement detection element 36 and the second displacement detection element 39 can detect the movement stroke of the first adjustment element 331 and the second adjustment element 342 in real time. Thus, when multiple poloidal field coil support devices 100 work together to adjust the circumferential position of the poloidal field coil 300, multiple horizontal support seats 32 are simultaneously adjusted to move the same displacement in the first and second directions. If the first adjustment element 331 or the second adjustment element 342 makes an adjustment error, the first displacement detection element 36 and the second displacement detection element 39 can immediately report an error or fault, which facilitates the immediate stopping of the adjustment of the poloidal field coil support device 100. Moreover, it can ensure that the first adjustment element 331 or the second adjustment element 342 are adjusted synchronously and the force is uniform during the horizontal adjustment process, thereby avoiding damage to the poloidal field coil 300 during the adjustment process and improving the reliability of the poloidal field coil support device 100.

[0042] In some embodiments of the present invention, reference is made to Figure 2 , Figure 3 and Figure 4 The horizontal adjustment unit 30 includes a locking mechanism 35 for locking or unlocking the horizontal support 32 and the first base 31.

[0043] In the above technical solution, the locking mechanism 35 can limit the displacement of the horizontal support 32 in the first direction and the second direction, so as to avoid the position of the poloidal field coil 300 in the first direction and the second direction after the adjustment is completed, and improve the positional accuracy of the poloidal field coil 300 in the circumferential direction.

[0044] In some embodiments of the present invention, reference is made to Figure 4 and Figure 5The horizontal support 32 includes a base body 321, an upper body 322, and a transition plate 323. The upper body 322 and the base body 321 are connected by the transition plate 323. The transition plate 323 protrudes from the bottom of the upper body 322 and the base body 321. The first adjustment mechanism 33, the second adjustment mechanism 34, and the locking mechanism 35 act on the base body 321. The horizontal adjustment part 30 includes a bearing plate 37 and a lower pressure plate 38. The bearing plate 37 is disposed on the first base 31 and fits against the bottom of the base body 321. The lower pressure plate 38 is connected to the first base 31 and fits downward against the protruding part of the transition plate 323.

[0045] In the above technical solution, the bearing plate 37 can support the weight of the horizontal support 32. The adapter plate 323 protrudes from the bottom of the upper seat 322 and the base body 321. The lower pressure plate 38 can be connected to the first base 31 and fits downward against the protruding part of the adapter plate 323, restricting the displacement of the horizontal support 32 in the vertical direction, preventing the horizontal support 32 from falling off or tilting on the first base 31, improving the stability of the horizontal support 32, and thus improving the structural stability of the horizontal adjustment part 30.

[0046] In some embodiments of the present invention, reference is made to Figure 4 The support plate 37 may include a first plate 371 and a second plate 372. The second plate 372 is detachably mounted on the first plate 371 and supported on the base 321. The surface roughness of the second plate 372 is less than that of the first plate 371. Since the poloidal field coil 300 and the horizontal support 32 are both relatively heavy, making the second plate 372 less rough reduces friction during adjustment and ease of adjustment. The detachable connection between the second plate 372 and the first plate 371 facilitates subsequent replacement and maintenance, reducing operating costs.

[0047] In some embodiments of the present invention, reference is made to Figure 4 The locking mechanism 35 includes two first locking bolts 351 and two second locking bolts 352. The two first locking bolts 351 abut against the two ends of the base body 321 in a third direction, and the two second locking bolts 352 abut against the two ends of the base body 321 in a fourth direction. The third direction is perpendicular to the fourth direction, and both the third direction and the fourth direction are perpendicular to the vertical direction.

[0048] The first, second, third, and fourth directions can be on the same plane, and can be spaced out at intervals. The intervals can be the same or different angles. For example, refer to... Figure 3 The first direction and the third direction are set at a 45-degree angle, and the fourth direction and the second direction are set at a 45-degree angle.

[0049] In the above technical solution, the design of the first locking bolt 351 and the second locking bolt 352 provides a uniform constraint force to the horizontal support 32 in the circumferential direction, which provides a better limiting effect for the poloidal field coil 300, avoids positional changes after the poloidal field coil 300 is adjusted, and improves the adjustment accuracy of the poloidal field coil support device 100. Meanwhile, by setting the locking mechanism 35 to include two first locking bolts 351 and two second locking bolts 352, its structure is simple and easy to operate and maintain.

[0050] In some embodiments of the present invention, reference is made to Figures 6 to 9 The vertical adjustment unit 20 includes: a second base 21, a connecting column 22, a fixing plate 23, a vertical support 24, a first guide column 25, a second guide column 26, and a hydraulic lifting component 27. The second base 21 is connected to the base 10 or the first base 31. The connecting column 22 is provided on the second base 21 and has multiple columns arranged around the second base 21 in a circumferential direction. The fixing plate 23 is provided at the end of the connecting column 22 away from the second base 21 and has a clearance hole 23a. The vertical support 24 is provided at the end of the fixing plate 23 away from the second base 21. On one side away from the second base 21; a first guide post 25 is provided on the second base 21 and passes through the clearance hole 23a to guide and cooperate with the vertical support 24. Multiple first guide posts 25 are provided around the circumference of the second base 21; a second guide post 26 is provided on the fixed plate 23 and guides and cooperates with the vertical support 24. Multiple second guide posts 26 are provided around the circumference of the vertical support 24; a hydraulic lifting component 27 is provided on the second base 21 and passes through the clearance hole 23a to connect with the vertical support 24.

[0051] The number of connecting column 22, first guide column 25, and second guide column 26 can be, but is not limited to, two, three, four, five, etc. The hydraulic lifting component 27 can be, but is not limited to, a hydraulic cylinder, a hydraulic motor + mechanical conversion mechanism, and a hydraulic jack, etc.

[0052] In the above technical solution, since the hydraulic lifting component 27 is located at the center of the second base 21 and is used to provide a lifting effect at the center of the vertical support 24, the first guide column 25, by connecting the second base 21 and the vertical support 24, can provide guidance in the central area of ​​the vertical support 24 and the movement of the hydraulic lifting component 27, thereby improving the lifting stability of the vertical support 24 and the hydraulic lifting component 27. The second guide column 26, by connecting the vertical support 24 and the fixing plate 23, can provide guidance on the outer periphery of the vertical support 24, further improving the lifting stability of the vertical support 24. This improves the working reliability of the vertical adjustment part 20, ensuring that the poloidal field coil 300 does not shift or become eccentric during the lifting process, and ensuring the installation position accuracy of the poloidal field coil 300.

[0053] In some embodiments of the present invention, reference is made to Figures 7 to 9 The connecting column 22 and the fixing plate 23 are inclined, and the top end of the connecting column 22 is further away from the hydraulic lifting component 27 than the bottom end; the top ends of multiple connecting columns 22 form a first projection on the horizontal plane, and the multiple first projections extend along the circumferential direction to form a ring structure; the second guide column 26 forms a second projection on the horizontal plane, and in the radial direction of the ring structure, the second projection and the first projection at least partially overlap.

[0054] In the above technical solution, the connecting column 22 and the fixing plate 23 are inclined. The inclined connecting column 22 actively bears most of the lateral load, and the force ultimately transmitted to the second base 21 is mainly axial force, thereby protecting the delicate and fragile hydraulic lifting component 27. This ensures that the hydraulic lifting component 27 bears almost only pure axial force, extending the service life and reliability of the hydraulic lifting component 27. The second projection and the first projection at least partially overlap, allowing the second guide column 26 to be supported below the first guide column 25, optimizing the stress structure of the fixing plate 23, preventing damage to the fixing plate 23, and extending the service life and reliability of the fixing plate 23.

[0055] In some embodiments of the present invention, reference is made to Figure 7 The vertical adjustment unit 20 includes a third displacement detection element 29, which is used to detect the lifting stroke of the hydraulic lifting element 27.

[0056] The third displacement detection element 29 can also detect the lifting stroke of the hydraulic lifting element 27. The third displacement detection element 29 can be, but is not limited to, a laser displacement sensor, a grating displacement sensor, an inductive displacement sensor, etc.

[0057] In the above technical solution, the third displacement detection element 29 can detect the lifting stroke of the hydraulic lifting element 27 in real time. This allows for the synchronous adjustment of multiple vertical adjustment parts 20 to move the same vertical displacement when multiple poloidal coil support devices 100 work together to adjust the vertical position of the poloidal coil 300. If the lifting strokes of the multiple vertical adjustment parts 20 are inconsistent, the third displacement detection element 29 can immediately report an error or fault, facilitating immediate cessation of the poloidal coil support device 100 adjustment. This avoids damage to the poloidal coil 300 during adjustment and improves the reliability of the poloidal coil support device 100. Furthermore, the third displacement detection element 29 can also detect the pressure on the hydraulic lifting element 27, preventing the poloidal coil 300 from shifting or tilting during lifting. It also prevents uneven or non-existent force on the hydraulic lifting element 27 during the lifting process, ensuring the poloidal coil 300 is smoothly lifted to the installation position.

[0058] In some embodiments of the present invention, reference is made to Figure 2The vertical adjustment part 20 includes a plurality of adjustment pads 28, which are detachably connected in sequence along the vertical direction. The vertical support base 24 is connected to the first base 31 or used to support the poloidal field coil 300 through the plurality of adjustment pads 28.

[0059] The number of adjusting pads 28 can be, but is not limited to, two, three, four, five, etc. For example, refer to... Figure 2 The number of adjusting shims 28 can be fifteen, and they are connected to the first base 31. Any two adjacent adjusting shims 28 can be connected by bolts, and the multiple adjusting shims 28 as a whole can be connected in series by rods.

[0060] Understandably, multiple poloidal field coil support devices 100 are arranged below the poloidal field coil 300. After the poloidal field coil 300 is lifted to a certain height by multiple hydraulic lifting components 27, one hydraulic lifting component 27 descends, increasing the number of adjusting pads 28 on the descending hydraulic lifting component 27. This process is repeated, adding the same number of adjusting pads 28 to each vertical adjustment section 20, thereby increasing the lifting range of the vertical adjustment section 20. The descended hydraulic lifting component 27 is then lifted back below the poloidal field coil 300, and the poloidal field coil 300 is lifted again. This cycle is repeated multiple times to raise the poloidal field coil 300 to the installation position. This method allows the small-stroke, high-precision hydraulic lifting component 27 to achieve a larger lifting stroke and enables slow adjustment of the height of the poloidal field coil 300, thus improving the height adjustment accuracy of the poloidal field coil 300.

[0061] In the above technical solution, by gradually increasing the number of adjusting shims 28, the lifting range of the vertical adjustment section 20 can be increased. This avoids the problem of poor stability and reliability caused by the large lifting height of the hydraulic lifting component 27 during large lifting stroke adjustments, and helps improve the reliability of the vertical adjustment section 20 in adjusting the height of the poloidal field coil 300. At the same time, the above solution also facilitates installation and disassembly within the limited space at the bottom, and the use of adjusting shims 28 to adjust the position of the bottom adjusting shims 28 ensures the accuracy of the installation position and the safety during the lifting process.

[0062] refer to Figure 1 , Figures 10 to 12 According to the lifting method of the poloidal field coil 300 of the present invention, a central column fixture 200 and a poloidal field coil support device 100 as described in any of the preceding embodiments are used. The central column fixture 200 includes a central column 210, a support beam 220 and a support base column 230. The support beam 220 is provided with a plurality of supports around the central column 210 in the circumferential direction, and the support base column 230 is provided below the support beam 220.

[0063] Reference Figure 13 The method for lifting the poloidal field coil 300 according to an embodiment of the present invention includes: Step S1: According to the installation position of the poloidal field coil 300, arrange multiple poloidal field coil support devices 100 around the circumference of the central column, and install the base 10 on the support beam 220 at the corresponding position. Each base 10 is supported on the Dewar base 400 by the support column 230 directly below it.

[0064] Step S2: Connect the magnet clamp of the poloidal field coil 300 to the corresponding poloidal field coil support device 100. Step S3: Adjust the height of the poloidal field coil 300 by cooperating with the vertical adjustment parts 20 of the multiple poloidal field coil support devices 100.

[0065] Step S4: Adjust the position of the poloidal field coil 300 in the circumferential direction by cooperating with the horizontal adjustment parts 30 of the multiple poloidal field coil support devices 100.

[0066] The support column 230 is supported by the Dewar base 400, which can improve the structural strength and torsional resistance of the support beam 220. In addition, one or more shims can be set between the support column 230 and the Dewar base 400 to ensure that the support column 230 and the Dewar base 400 can abut against each other and ensure that the Dewar base 400 can provide support force to the support column 230.

[0067] The lifting method of the poloidal field coil 300 in the above embodiment of the present invention can be specifically referred to the description of the poloidal field coil support device 100 above. The poloidal field coil 300 may include a first poloidal field coil 310 and a second poloidal field coil 320. The first poloidal field coil 310 may be temporarily supported and lifted by multiple poloidal field coil support devices 100, and the second poloidal field coil 320 may also be temporarily supported and lifted by multiple poloidal field coil support devices 100.

[0068] According to the lifting method of the poloidal field coil 300 of the present invention, the position of the poloidal field coil 300 in the vertical direction and the circumferential direction can be precisely adjusted by the poloidal field coil support device 100 to meet the installation requirements of the poloidal field coil 300 at the bottom of the nuclear fusion device.

[0069] The following is combined Figures 1 to 9 This describes a specific embodiment of the poloidal field coil support device 100 of the present invention supporting a poloidal field coil 300.

[0070] The poloidal field coil 300 includes a first poloidal field coil 310 and a second poloidal field coil 320. The diameter of the first poloidal field coil 310 is smaller than that of the second poloidal field coil 320, and it is located inside the second poloidal field coil 320. The first poloidal field coil 310 is supported on the central column fixture 200 by multiple poloidal field coil support devices 100, and the second poloidal field coil 320 is also supported on the central column fixture 200 by multiple poloidal field coil support devices 100. Specifically, a first magnet clamp below the first poloidal field coil 310 is supported on a corresponding poloidal field coil support device 100, and a second magnet clamp 3201 of the second poloidal field coil 320 is supported on a corresponding poloidal field coil support device 100.

[0071] Among them, the poloidal field coil support device 100 corresponding to the second poloidal field coil 320 includes a base 10, a vertical adjustment part 20 and a horizontal adjustment part 30, and the horizontal adjustment part 30, the vertical adjustment part 20 and the base 10 are arranged in the vertical direction.

[0072] The vertical adjustment unit 20 includes a second base 21, a connecting column 22, a fixing plate 23, a vertical support 24, a first guide column 25, a second guide column 26, a hydraulic lifting component 27, a third displacement detection component, and multiple adjusting pads 28.

[0073] The second base 21 connects to the base 10. Multiple connecting columns 22 are provided on the second base 21 and arranged circumferentially around the second base 21. A fixing plate 23 is provided at the end of the connecting column 22 away from the second base 21 and has a clearance hole 23a. A vertical support 24 is provided on the side of the fixing plate 23 away from the second base 21. Multiple first guide columns 25 are provided on the second base 21 and pass through the clearance hole 23a to guide and cooperate with the vertical support 24, and multiple first guide columns 25 are arranged circumferentially around the vertical adjustment part. Multiple second guide columns 26 are provided on the fixing plate 23 and guide and cooperate with the vertical support 24, and multiple second guide columns 26 are arranged circumferentially around the second base 21. A hydraulic lifting component 27 is provided on the second base 21 and passes through the clearance hole 23a to connect with the vertical support 24. A third displacement detection component 29 is used to detect the lifting stroke of the hydraulic lifting component 27. Multiple adjusting pads 28 are detachably connected in sequence along the vertical direction. The vertical support 24 is connected to the first base 31 or used to support the second pole-field coil 320 through the multiple adjusting pads 28.

[0074] The horizontal adjustment unit 30 includes a first base 31, a horizontal support 32, a first adjustment mechanism 33, a second adjustment mechanism 34, a locking mechanism 35, a first displacement detection element, a second displacement detection element, a bearing plate 37, and a lower pressure plate 38. The first base 31 connects to the uppermost of the plurality of adjustment pads 28.

[0075] The horizontal support 32 includes a base body 321, an upper body 322, and a transition plate 323. The upper body 322 and the base body 321 are connected by the transition plate 323. The transition plate 323 protrudes from the bottom of the upper body 322 and the base body 321. The first adjustment mechanism 33, the second adjustment mechanism 34, and the locking mechanism 35 act on the base body 321.

[0076] The first adjusting mechanism 33 includes two first adjusting members 331, which are hydraulic cylinders located at both ends of the horizontal support 32 in a first direction and are telescopic along the first direction. The telescopic directions of the two first adjusting members 331 are opposite. The second adjusting mechanism 34 includes two second adjusting members 342, which are hydraulic cylinders located at both ends of the horizontal support 32 in a second direction and are telescopic along the second direction. The telescopic directions of the two second adjusting members 342 are opposite. The first direction is perpendicular to the second direction, and the first and second directions are perpendicular to the vertical direction.

[0077] The locking mechanism 35 includes two first locking bolts 351 and two second locking bolts 352. The two first locking bolts 351 abut against both ends of the base body 321 in a third direction, and the two second locking bolts 352 abut against both ends of the base body 321 in a fourth direction. The third direction and the first direction are set at a 45-degree angle, and the fourth direction and the second direction are set at a 45-degree angle. Each first adjusting member 331 is provided with a corresponding first displacement detection member 36, which is used to detect the extension and retraction stroke of the corresponding first adjusting member 331. Each second adjusting member 342 is provided with a corresponding second displacement detection member 39, which is used to detect the extension and retraction stroke of the corresponding second adjusting member 342.

[0078] The support plate 37 is mounted on the first base 31 and is attached to the bottom of the base body 321. The pressure plate 38 is connected to the first base 31 and is attached downward to the protruding part of the adapter plate 323.

[0079] In the description of this specification, references to terms such as "some embodiments," "optionally," "furthermore," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0080] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A poloidal field coil support device for supporting the poloidal field coil of the PF magnet system in a nuclear fusion device, characterized in that, The poloidal field coil support device includes a base, a vertical adjustment section, and a horizontal adjustment section. The horizontal adjustment section, the vertical adjustment section, and the base are arranged along the vertical direction. The horizontal adjustment section and the vertical adjustment section are connected, and one of them is located on the base. The horizontal adjustment section includes: The first base is connected to the vertical adjustment unit; A horizontal support base is movably disposed on the first base along a first direction and a second direction, wherein the first direction is perpendicular to the second direction, and the first direction and the second direction are perpendicular to the vertical direction; A first adjustment mechanism is provided on the first base and drives the horizontal support to move along the first direction; A second adjustment mechanism is provided on the first base and drives the horizontal support to move along the second direction.

2. The poloidal field coil support device according to claim 1, characterized in that, The first adjustment mechanism includes two first adjustment members, which are located at both ends of the horizontal support in the first direction and are retractable along the first direction, with the retraction directions of the two first adjustment members being opposite; the second adjustment mechanism includes two second adjustment members, which are located at both ends of the horizontal support in the second direction and are retractable along the second direction, with the retraction directions of the two second adjustment members being opposite.

3. The poloidal field coil support device according to claim 2, characterized in that, The horizontal adjustment unit includes: A first displacement detection element is provided for each of the first adjustment elements, and the first displacement detection element is used to detect the extension and retraction stroke of the corresponding first adjustment element. The second displacement detection element is provided for each second adjustment element, and the second displacement detection element is used to detect the extension and retraction stroke of the corresponding second adjustment element.

4. The poloidal field coil support device according to claim 1, characterized in that, The horizontal adjustment unit includes a locking mechanism for locking or unlocking the horizontal support and the first base.

5. The poloidal field coil support device according to claim 4, characterized in that, The horizontal support includes a base body, an upper body, and a connecting plate. The upper body and the base body are connected by the connecting plate. The connecting plate protrudes from the bottom of the upper body and the base body. The first adjustment mechanism, the second adjustment mechanism, and the locking mechanism act on the base body. The horizontal adjustment part includes a bearing plate and a lower pressure plate. The bearing plate is disposed on the first base and fits against the bottom of the base body. The lower pressure plate is connected to the first base and fits downward against the protruding part of the connecting plate.

6. The poloidal field coil support device according to claim 5, characterized in that, The locking mechanism includes two first locking bolts and two second locking bolts. The two first locking bolts abut against both ends of the base body in a third direction, and the two second locking bolts abut against both ends of the base body in a fourth direction. The third direction is perpendicular to the fourth direction, and both the third direction and the fourth direction are perpendicular to the vertical direction.

7. The poloidal field coil support device according to claim 1, characterized in that, The vertical adjustment unit includes: The second base is connected to the base or the first base; Connecting columns are provided on the second base and are provided in multiple circumferential directions around the second base; A fixing plate is provided at the end of the connecting column away from the second base, and is provided with a clearance hole; A vertical support base is provided on the side of the fixing plate away from the second base; The first guide post is disposed on the second base and passes through the clearance hole and guides the vertical support seat. Multiple first guide posts are provided around the circumference of the second base. The second guide post is provided on the fixed plate and guides the vertical support base. Multiple second guide posts are provided around the circumference of the vertical support base. A hydraulic lifting component is mounted on the second base and passes through the clearance hole to connect with the vertical support base.

8. The poloidal field coil support device according to claim 7, characterized in that, The vertical adjustment unit includes a third displacement detection element for detecting the lifting stroke of the hydraulic lifting element.

9. The poloidal field coil support device according to claim 7 or 8, characterized in that, The vertical adjustment section includes multiple adjustment pads, which are detachably connected in sequence along the vertical direction. The vertical support base is connected to the first base or used to support the poloidal field coil through the multiple adjustment pads.

10. A method for lifting a poloidal field coil, characterized in that, Using a central column fixture and a poloidal field coil support device as described in any one of claims 1 to 9, the central column fixture includes a central column, a support beam, and a support base column, wherein the support beam is provided with a plurality of supports circumferentially around the central column, and the support base column is located below the support beam; the method includes: According to the installation position of the poloidal field coil, multiple poloidal field coil support devices are arranged around the circumference of the central column, and the bases are installed on the support beams at the corresponding positions, with each base supported on the Dewar base by the support bottom column directly below it. Connect the magnet clamp of the poloidal field coil to the corresponding poloidal field coil support device; The height of the poloidal field coil is adjusted by the cooperation of the vertical adjustment parts of the multiple poloidal field coil support devices. The position of the poloidal field coil in the circumferential direction is adjusted by the cooperation of the horizontal adjustment parts of the multiple poloidal field coil support devices.

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