Supporting structure of superconducting coil

Abstract

The utility model discloses a superconducting coil support structure, which comprises a base, a support part arranged on the base and a heat insulation assembly connecting the base and the support part, the heat insulation assembly comprises a heat insulation cylinder, the lower end of the heat insulation cylinder is connected with the top end of the base through a heat insulation part, and a heat dissipation part is arranged in the heat insulation cylinder. The heat dissipation component is horizontally arranged in the radial direction of the heat insulation cylinder, and the peripheral wall is tightly attached to the inner wall of the heat insulation cylinder. The heat insulation part is used for separating the heat insulation barrel from the base to achieve a first-stage heat insulation effect; and the heat dissipation component can disperse heat on the side wall of the heat insulation cylinder to the heat dissipation component and the heat insulation cylinder, so that the heat transferred to the superconducting coil is further reduced. Through the arrangement of the heat insulation and heat dissipation structure, the heat insulation and heat dissipation effect of the supporting structure can be remarkably improved, the low-temperature supporting requirement of the superconducting coil is met, and a large amount of heat is prevented from being transmitted to the superconducting coil in a normal-temperature area.

Description

Technical Field

[0001] The utility model belongs to the technical field of superconductivity, and in particular relates to a supporting structure of a superconducting coil. Background Art

[0002] A nuclear fusion device is a device used to achieve controlled nuclear fusion reactions to generate clean energy. Superconducting coils are key components of a nuclear fusion device. They generate strong magnetic fields to confine high-temperature plasma, preventing it from contacting the device walls while maintaining a stable plasma state to promote the fusion reaction. Common nuclear fusion devices include tokamaks and stellarators.

[0003] Taking stellarators as an example, superconducting coils need to work in an extremely low temperature environment (such as liquid helium temperature, about 4.2K) to maintain a superconducting state (zero resistance). In order to avoid direct contact between the superconducting coils and the normal temperature area (such as room temperature), which may affect their own temperature, the superconducting coils need to be supported by a special support structure.

[0004] However, the support structure in the existing technology has poor insulation or heat dissipation effects and cannot meet the low-temperature support requirements of the superconducting coil. There is a problem of transferring a large amount of heat from the normal temperature area to the superconducting coil (i.e., heat leakage). Utility Model Content

[0005] The purpose of the present invention is to solve the problem in the prior art that the support structure has poor insulation or heat dissipation effect, cannot meet the low-temperature support requirements of the superconducting coil, and has a large amount of heat transferred to the superconducting coil from the normal temperature area (i.e., heat leakage).

[0006] In order to solve the above technical problems, an embodiment of the present utility model discloses a support structure for a superconducting coil, comprising a base, a support portion arranged on the base, and a thermal insulation assembly connecting the base and the support portion; the superconducting coil is fixed on the support portion; the thermal insulation assembly comprises an insulation tube, the upper end of the insulation tube is fixed to the lower end of the support portion, and the lower end is connected to the top end of the base; wherein, the lower end of the insulation tube and the top end of the base are connected by an insulation component, and a heat dissipation component is provided inside the insulation tube, and the heat dissipation component is horizontally arranged along the radial direction of the insulation tube, and the outer peripheral wall is tightly fitted with the inner wall of the insulation tube.

[0007] The technical scheme is adopted, the support part is a support area directly contacting the superconducting coil, the heat insulation assembly is used for insulating and dispersing heat transferred from the base to the superconducting coil, the heat insulation part is used for insulating the heat insulation cylinder from the base, and a first-stage heat insulation effect is achieved; the heat insulation cylinder can be used as a support structure of the heat dissipation part, can prolong a heat transfer path by the cylinder structure, can reduce heat transfer, and can use air in the heat insulation cylinder to hinder heat transfer; the heat dissipation part tightly connected with the inner wall of the heat insulation cylinder can disperse heat on the side wall of the heat insulation cylinder to the heat dissipation part and the heat insulation cylinder, so that heat transferred to the superconducting coil is further reduced. By arranging the multi-stage heat insulation and heat dissipation structure, the heat insulation and heat dissipation effect of the support structure can be significantly improved, the low-temperature support requirement of the superconducting coil is met, and a large amount of heat (i.e., heat leakage) is prevented from being transferred from the normal-temperature area (for example, the base area) to the superconducting coil.

[0008] According to another specific embodiment of the utility model, the utility model discloses a kind of support structure of superconducting coil, and heat dissipation part includes heat conduction plate, heat conduction plate is located in the middle of heat insulation cylinder in the height direction of heat insulation cylinder, outer peripheral wall and the inner wall of heat insulation cylinder are tightly attached, and the outer surface of heat conduction plate is coated with heat conduction layer;And at least one side of heat conduction plate is also provided with cooling pipe, cooling pipe is spirally extended and arranged on the corresponding one side surface of heat conduction plate, and the inlet and outlet of cooling pipe respectively penetrate the side wall of heat insulation cylinder, located at the outside of heat insulation cylinder, wherein, in height direction, outlet is higher than inlet;Wherein the outer periphery of heat conduction plate is fixed in heat insulation cylinder by a plurality of fastening members arranged along its circumferential direction;And, heat insulation cylinder is made of glass steel material, and heat conduction plate is made of metal heat conduction material.

[0009] The technical scheme is adopted, heat transferred from bottom to top along the length direction of heat insulation cylinder gradually reduces, heat conduction plate is arranged in the middle of heat insulation cylinder, heat can be dispersed to the air inside heat insulation cylinder along the radial direction of heat insulation cylinder in the middle area of heat insulation cylinder, heat conduction layer can enhance the heat conduction capacity of heat conduction plate by its excellent heat conduction performance. In addition, cooling pipe is arranged on at least one side of heat conduction plate, heat on heat conduction plate can be taken away by heat exchange, so that heat conduction plate can continuously be at lower temperature, so that more heat can be dispersed from the side wall of heat insulation cylinder. The contact area of cooling pipe spirally extended with heat conduction plate is large, and heat exchange efficiency is higher, and the height of outlet of cooling pipe is arranged higher than inlet in the direction of heat insulation cylinder, so that the temperature of cooling liquid near heat insulation cylinder is lower, and heat exchange efficiency is higher.

[0010] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a support structure of superconducting coil, and the heat insulation part comprises a heat insulation plate, and the upper surface of the heat insulation plate is fixedly connected with the lower end of the heat insulation cylinder, and the lower surface is fixedly connected with the top end of the base; wherein, in the height direction, the heat insulation plate covers at least the lower end opening of the heat insulation cylinder.

[0011] By adopting the above technical scheme, the heat insulation plate covering at least the lower end opening of the heat insulation cylinder can completely separate the heat insulation cylinder from the top end of the base, thereby blocking heat transfer.

[0012] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a low-temperature support structure of superconducting coil, and the low-temperature support structure further comprises a connecting assembly, and the connecting assembly comprises an upper connecting component and a lower connecting component; wherein the upper connecting component is arranged between the upper end of the heat insulation cylinder and the lower end of the support part, comprises an inner flange and an outer flange, the inner flange is sleeved on the inner periphery of the upper end of the heat insulation cylinder, the outer flange is sleeved on the outer periphery of the upper end of the heat insulation cylinder, the upper ends of the inner flange and the outer flange are fixedly connected with each other, and the upper end of the heat insulation cylinder is clamped in the circumferential gap between the inner flange and the outer flange; and the top of the outer flange is fixedly connected with the lower end of the support part; and the lower connecting component comprises a lower connecting plate, the lower end of the heat insulation cylinder is fixedly connected with the upper surface of the lower connecting plate, and the bottom surface of the lower connecting plate is overlapped on the top surface of the heat insulation plate; the inner flange, the outer flange and the lower connecting plate are all made of metal heat-conducting materials.

[0013] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a low-temperature support structure of superconducting coil, and the support part comprises a support sleeve and a support platform arranged at the top of the support sleeve; wherein the support sleeve is fixedly connected with the top of the outer flange, and the outer wall is provided with a plurality of reinforcing ribs extending in the height direction at intervals in the circumferential direction; and the support platform, the support sleeve and the plurality of reinforcing ribs are formed integrally and are all made of metal heat-conducting materials.

[0014] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a support structure of superconducting coil, and the base comprises a first rotating part and two support arms extending from the first rotating part; wherein the first rotating part is rotatably connected with the lower surface of the heat insulation plate through a first pivot, and the first pivot extends parallel to the lower surface of the heat insulation plate; the two support arms extend from the first rotating part towards the direction away from the heat insulation plate, have a predetermined included angle between each other and form an inverted V-shaped structure as a whole; and the bottom end of each support arm is respectively pivotally connected with a fixed position through a second rotating part; wherein each second rotating part can rotate around a second pivot extending parallel to the lower surface of the heat insulation plate and perpendicular to the first pivot, and the two second pivots extend parallel to each other.

[0015] According to the technical scheme, the heat insulation plate and each component at the upper end of the heat insulation plate can rotate with the first rotating part around the axis of the first pivot; the heat insulation plate and each component at the upper end of the heat insulation plate and the support arm can rotate with the second rotating part around the axis of the second pivot; the rotatable structure can allow the superconducting coil to produce deflection within a certain range, thereby buffering the impact force caused by the strong magnetic field and improving the structural stability.

[0016] According to another specific embodiment of the present application, the embodiment of the present application discloses a low-temperature support structure of a superconducting coil, the first rotating part comprises a first rotating ring, the lower surface of the heat insulation plate is provided with a pair of first connecting ears clamping the first rotating ring, and the pair of first connecting ears and the first rotating ring are rotatably connected together through a first pivot; and the two support arms extend from the side of the first rotating ring away from the heat insulation plate, and the second rotating part is a second rotating ring arranged at the bottom end of each support arm; wherein the fixed position is provided with two pairs of second connecting ears corresponding to each second rotating ring respectively, each second rotating ring is clamped in the corresponding pair of second connecting ears, and is rotatably connected to the corresponding pair of second connecting ears through a corresponding second pivot.

[0017] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a low-temperature support structure of superconducting coil, wherein the first pivot comprises coaxially sleeved first connecting bolt, first center pin cylinder and first sleeve, the first center pin cylinder is sleeved on the outer periphery of the first connecting bolt, and a first step portion is formed on the outer periphery of one end of the first center pin cylinder, and the first sleeve is sleeved on the region of the outer periphery of the first center pin cylinder without the first step portion; and the first connecting bolt, the first center pin cylinder and the first sleeve are inserted into and pass through the center hole of the first rotating ring from the connecting hole of one first connecting lug, the first step portion of the first connecting bolt and the first center pin cylinder passes through the connecting hole of another first connecting lug, the step surface of the first center pin cylinder and the end surface of the first sleeve abut against the inner wall of another first connecting lug, and the two ends of the first connecting bolt protrude from the corresponding end portions of the first center pin cylinder; and one side end portion of the first connecting bolt and the first center pin cylinder protrudes from and is fixed to the outer wall of one first connecting lug, and the other side end portion protrudes from and is fixed to the outer wall of another first connecting lug; wherein one side end portion of the first connecting bolt is provided with a first circumferential flange, the first circumferential flange abuts against the outer wall of the first center pin cylinder, and one side end portion of the first center pin cylinder is provided with a first circumferential protrusion, and the first circumferential protrusion is fixed to the outer wall of one first connecting lug; and the other side end portion of the first connecting bolt protrudes from the outer wall of another first connecting lug, and is fixed to the outer wall of another first connecting lug through the first annular cover plate and the first connecting nut; wherein the first annular cover plate is sleeved on the other side end portion of the first connecting bolt, abuts against the outer wall of another first connecting lug, covers the corresponding connecting hole, and the first connecting nut is threadedly sleeved on the other side end portion of the first connecting bolt and fixes the first annular cover plate to the outer wall of another first connecting lug.

[0018] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a low-temperature support structure of superconducting coil, wherein each second pivot comprises coaxially sleeved second connecting bolt, second center pin cylinder and second sleeve, the second center pin cylinder is sleeved on the outer periphery of the second connecting bolt, a second step part is formed on the outer periphery of one end of the second center pin cylinder, and the second sleeve is sleeved on the region of the outer periphery of the second center pin cylinder without the second step part;And the second connecting bolt, the second center pin cylinder and the second sleeve are inserted into and pass through the center hole of the second rotating ring from the connecting hole of one second connecting lug, the second connecting bolt and the second step part of the second center pin cylinder pass through the connecting hole of another second connecting lug, the step surface of the second center pin cylinder and the end surface of the second sleeve abut against the inner wall of another second connecting lug, and the two ends of the second connecting bolt protrude from the corresponding end of the second center pin cylinder;And one side end of the second connecting bolt and the second center pin cylinder protrudes from the outer wall of one second connecting lug and is fixed to the outer wall, and the other side end protrudes from the outer wall of another second connecting lug and is fixed to the outer wall;Wherein one side end of the second connecting bolt is provided with a second circumferential flange, the second circumferential flange abuts against the outer wall of the second center pin cylinder, and the two side ends of the second center pin cylinder are provided with second circumferential protrusions, and the second circumferential protrusions are fixed to the outer wall of one second connecting lug;And the other side end of the second connecting bolt protrudes from the outer wall of another second connecting lug, and is fixed to the outer wall of another second connecting lug through the second annular cover plate and the second connecting nut;Wherein the second annular cover plate is sleeved on the other side end of the second connecting bolt, abuts against the outer wall of another second connecting lug, covers the corresponding connecting hole, and the second connecting nut is threadedly sleeved on the other side end of the second connecting bolt and fixes the second annular cover plate to the outer wall of another second connecting lug.

[0019] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a low-temperature support structure of superconducting coil, wherein the first circumferential protrusion of the first center pin cylinder and the outer wall of one first connecting lug are further provided with a first adjusting bolt, and the outer wall of another first connecting lug is further provided with a second adjusting bolt between the first annular cover plate;And the second circumferential protrusion of the second center pin cylinder and the outer wall of one second connecting lug are further provided with a third adjusting bolt, and the outer wall of another second connecting lug is further provided with a fourth adjusting bolt between the second annular cover plate.

[0020] The utility model discloses a beneficial effect for: the utility model discloses an embodiment of implementation discloses a support structure of superconducting coil, including base, support part setting on the base and the heat insulation subassembly of connecting base and support part. Support part is the support area of direct contact with superconducting coil, and the heat insulation subassembly is used for insulating and dispersing the heat that transmits from base to superconducting coil, wherein, the heat insulation part is used for isolating heat insulation cylinder and base, plays the first -stage heat -insulation effect;Heat insulation cylinder can be used as the support structure of heat dissipation part on one hand, on the other hand still can extend heat transfer path through its own cylinder structure characteristic, reduces heat transfer, still can utilize the air in heat insulation cylinder and hinder heat transfer;The heat dissipation part of outer peripheral wall and heat insulation cylinder inner wall close connection can scatter the heat on heat insulation cylinder lateral wall to heat dissipation part and heat insulation cylinder, thereby further reduce the heat that transmits to superconducting coil. Through such multistage heat -insulation and the setting of heat -dissipation structure, can significantly improve the heat -insulation and heat -dissipation effect of support structure, satisfy the low -temperature support demand of superconducting coil, avoid normal temperature area (for example base area) to superconducting coil and transmit a large amount of heat (that is, heat leakage). BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is whole structure schematic diagram of support structure of superconducting coil provided for the utility model embodiment;

[0022] Figure 2 It is structure schematic diagram of support part and heat insulation subassembly of support structure of superconducting coil provided for the utility model embodiment;

[0023] Figure 3 It is structure schematic diagram of heat dissipation part of support structure of superconducting coil provided for the utility model embodiment;

[0024] Figure 4 It is partial structure schematic diagram of base of support structure of superconducting coil provided for the utility model embodiment (including support arm, first rotation part and second rotation part);

[0025] Figure 5 It is another partial structure schematic diagram of base of support structure of superconducting coil provided for the utility model embodiment (including first pivot and first connecting lug);

[0026] Figure 6 It is still another partial structure schematic diagram of base of support structure of superconducting coil provided for the utility model embodiment (including second pivot, second connecting lug and fixed position).

[0027] BRIEF DESCRIPTION OF DRAWINGS:

[0028] 1, support part;

[0029] 10, support sleeve;11, support platform;12, reinforcing rib;

[0030] 2. Thermal insulation components;

[0031] 20. Insulation tube; 21. Insulation component; 210. Insulation plate; 22. Heat dissipation component; 220. Heat conduction plate; 221. Cooling pipe; 2211. Liquid inlet; 2212. Liquid outlet; 222. Fastening member;

[0032] 3. Base;

[0033] 30. Support arm; 31. First rotating portion; 32. First pivot; 320. First connecting bolt; 3201. First circumferential flange; 321. First center pin barrel; 3211. First step; 3212. First circumferential protrusion; 322. First sleeve; 323. First annular cover plate; 324. First connecting nut; 325. First adjusting bolt; 326. Second adjusting bolt; 33. First connecting lug; 34. Second rotating portion; 35. Second pivot; 350. Second connecting bolt; 3501. Second circumferential flange; 351. Second center pin barrel; 3511. Second step; 3512. Second circumferential protrusion; 352. Second sleeve; 353. Second annular cover plate; 354. Second connecting nut; 355. Third adjusting bolt; 356. Fourth adjusting bolt; 36. Second connecting lug; 37. Fixed position;

[0034] 4. Connect components;

[0035] 40. Upper connecting part; 400. Inner flange; 401. Outer flange; 41. Lower connecting part; 410. Lower connecting plate. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0037] The present invention provides a support structure for a superconducting coil. Figure 1 As shown, the support structure includes a structure for fixing the superconducting coil ( Figure 1The superconducting coil can be directly in contact with the support part 1 to fix the superconducting coil on the support part 1, and the support part 1 can be a plate-shaped structure, or a columnar structure or a circular table and other support structures capable of being connected with the bottom of the superconducting coil. The support structure further comprises a base 3, which is mainly used for installing the superconducting coil, the support part 1, the heat insulation assembly 2 and the like at the bottom wall, the side wall or the ground of the nuclear fusion device. The base 3 and the support part 1 are connected through the heat insulation assembly 2, and the heat insulation assembly 2 is the main component for isolating and dispersing heat transfer between the base 3 and the support part 1 (i.e. between the normal temperature area and the low temperature area) in the entire support structure. The heat insulation assembly 2 comprises a heat insulation cylinder 20, and the upper and lower ends of the heat insulation cylinder 20 are connected with the support part 1 and the base 3 respectively, that is, the upper end of the heat insulation cylinder 20 is fixed to the lower end of the support part 1, and the lower end of the heat insulation cylinder 20 is connected to the top end of the base 3. The heat insulation cylinder 20 can prolong the heat transfer path through its own cylindrical structure characteristics, reduce heat transfer, and also can hinder heat transfer by using the air in the heat insulation cylinder 20. The lower end of the heat insulation cylinder 20 and the top end of the base 3 are connected through a heat insulation component 21, and the heat insulation component 21 is used to isolate the heat insulation cylinder 20 and the base 3, and plays a first-stage heat insulation role. The material of the heat insulation component 21 can be glass fiber and epoxy resin composite material (G10), and the structure thereof can be a plate-shaped structure, a layered structure or a block-shaped structure, as long as it can indirectly connect the base 3 and the heat insulation cylinder 20. As shown in Figure 2 The inside of the heat insulation cylinder 20 is provided with a heat dissipation component 22, which is horizontally arranged along the radial direction of the heat insulation cylinder 20 and can be tightly attached to the inner wall of the heat insulation cylinder 20, so as to disperse the heat on the side wall of the heat insulation cylinder 20 to the heat dissipation component 22 and the inside of the heat insulation cylinder 20, thereby further reducing the heat transferred to the superconducting coil. At this time, the heat insulation cylinder 20 also serves as a support structure of the heat dissipation component 22 and has the support role of the heat dissipation component 22. The heat dissipation component 22 can be made of oxygen-free copper material, and its shape matches the shape of the heat insulation cylinder 20, and can be a plate-shaped structure, a rod-shaped structure or a layered structure, as long as it can extend along the radial direction of the heat insulation cylinder 20 to disperse heat in different directions. The heat insulation cylinder 20, the heat insulation component 21 and the heat dissipation component 22 are connected with each other to form a multi-stage heat insulation and heat dissipation structure, which can significantly improve the heat insulation and heat dissipation effect of the support structure, meet the low-temperature support requirement of the superconducting coil, and avoid a large amount of heat (i.e. heat leakage) from the normal temperature area (such as the base 3 area) to the superconducting coil.

[0038] It should be noted that the heat insulation cylinder 20 can be made of glass steel material with low thermal conductivity and high strength characteristics.

[0039] In one of the specific embodiments of the present application, as shown in Figure 1 and Figure 2 The heat dissipation component 22 comprises a heat conduction plate 220, which can be arranged in the height direction of the heat insulation cylinder 20Figure 2 The heat transferred upward along the height direction of the heat insulation cylinder 20 will gradually decrease, and the heat conducting plate 220 arranged at the middle part of the heat insulation cylinder 20 can disperse the heat in the middle part of the heat insulation cylinder 20 to the air inside the heat insulation cylinder 20 along the radial direction of the heat insulation cylinder 20. The shape of the heat conducting plate 220 can be set as a disc shape matching the cross-sectional shape of the heat insulation cylinder 20, so that the outer peripheral wall of the heat conducting plate 220 can tightly fit the inner wall of the heat insulation cylinder 20 to uniformly disperse the heat. In order to enhance the heat conduction efficiency between the heat conducting plate 220 and the heat insulation cylinder 20, a heat conducting layer, such as a heat conducting grease with good heat conducting performance, can also be coated on the outer surface of the heat conducting plate 220. The heat conducting plate 220 can be made of a metal heat conducting material, such as oxygen-free copper.

[0040] As shown in Figure 2 and Figure 3 At least one side of the heat conducting plate 220 can also be provided with a cooling pipe 221, and a cooling medium with a lower temperature than the heat conducting plate 220 is introduced into the cooling pipe 221 to take away the heat on the heat conducting plate 220 through heat exchange, so that the heat conducting plate 220 can continuously maintain a lower temperature to disperse more heat from the side wall of the heat insulation cylinder 20. In order to increase the contact area between the cooling pipe 221 and the heat conducting plate 220 and improve the heat exchange efficiency, the cooling pipe 221 can be spirally arranged on the corresponding side surface of the heat conducting plate 220. It should be noted that two heat conducting plates 220 can be arranged at intervals along the height direction of the heat insulation cylinder 20, and one cooling pipe 221 can be arranged on each side surface of each heat conducting plate 220. The cooling pipe 221 can be fixed on the heat conducting plate 220 by soldering. In order to facilitate the input and output of the cooling medium, the inlet 2211 and the outlet 2212 of the cooling pipe 221 penetrate the side wall of the heat insulation cylinder 20 and are located outside the heat insulation cylinder 20.

[0041] Figure 3 The cooling pipe 221 is arranged on the upper surface of the heat conducting plate 220, and in the height direction, the outlet 2212 is higher than the inlet 2211, so that the cooling liquid near the heat insulation cylinder 20 has a lower temperature and a higher heat exchange efficiency.

[0042] As shown in Figure 2 The outer periphery of the heat conducting plate 220 can be fixed in the heat insulation cylinder 20 by a plurality of fastening members 222 (such as bolts) arranged at intervals in the circumferential direction.

[0043] In one of the specific embodiments of the present application, as shown in Figure 1 and Figure 2The heat insulation component 21 shown includes a heat insulation plate 210, the upper surface of which can be fixedly connected with the lower end of the heat insulation cylinder 20, and the lower surface of which can be fixedly connected with the top end of the base 3, thereby indirectly connecting the base 3 and the heat insulation cylinder 20 while being able to insulate heat transfer. In order to minimize heat transfer between the base 3 and the heat insulation cylinder 20, the heat insulation plate 210 needs to cover at least the lower end opening of the heat insulation cylinder 20 in the height direction of the heat insulation cylinder 20, thereby completely separating the heat insulation cylinder 20 and the top end of the base 3 and blocking heat transfer. The heat insulation plate 210 can be made of glass fiber and epoxy resin composite material (G10) with good heat insulation performance.

[0044] In one of the specific embodiments of the present application, in combination with Figure 1 and Figure 2 , the support structure further includes a connecting assembly 4 for connecting the heat insulation cylinder 20 and the support part 1 and the base 3, the connecting assembly 4 including an upper connecting component 40 and a lower connecting component 41 respectively arranged at the upper and lower ends of the heat insulation cylinder 20, the upper connecting component 40 being used for connecting with the support part 1, and the lower connecting component 41 being used for connecting with the base 3. Specifically, the upper connecting component 40 is arranged between the upper end of the heat insulation cylinder 20 and the lower end of the support part 1, and includes an inner flange 400 and an outer flange 401, the inner flange 400 being sleeved on the inner periphery of the upper end of the heat insulation cylinder 20, and including a cylindrical portion connected with the inner wall of the heat insulation cylinder 20 and a connecting ring portion extending radially inward along the cylindrical portion, the connecting ring portion being used for connecting with the connecting ring portion of the outer flange 401 in the height direction of the heat insulation cylinder 20. The outer flange 401 is sleeved on the outer periphery of the upper end of the heat insulation cylinder 20, and includes a cylindrical portion connected with the outer wall of the heat insulation cylinder 20 and a connecting ring portion extending radially along the cylindrical portion, the connecting ring portion being used for connecting with the connecting ring portion of the inner flange 400 in the height direction of the heat insulation cylinder 20, i.e. the upper ends of the inner flange 400 and the outer flange 401 are fixedly connected with each other. Since the inner flange 400 and the outer flange 401 are respectively connected with the inner wall and the outer wall of the upper end of the heat insulation cylinder 20, the upper end of the heat insulation cylinder 20 is clamped in the circumferential gap between the inner flange 400 and the outer flange 401, and the top of the outer flange 401 is fixedly connected with the lower end of the support part 1, thereby fixedly connecting the upper end of the heat insulation cylinder 20 and the support part 1. The lower connecting component 41 can include a lower connecting plate 410, and the lower end of the heat insulation cylinder 20 and the upper surface of the lower connecting plate 410 can be fixedly connected by a resin adhesive or by welding. The bottom surface of the lower connecting plate 410 is stacked on the top surface of the heat insulation plate 210, and the two can be connected by bolts or other fasteners. The inner flange 400, the outer flange 401 and the lower connecting plate 410 can all be made of metal heat-conducting materials, such as stainless steel materials.

[0045] It should be noted that the inner flange 400 and the outer flange 401 can be installed with the heat insulation cylinder 20 in a cold shrinkage manner, which means that the heat insulation cylinder 20 is first cooled to about 70K during installation, and then it is inserted into the inner and outer flanges with an interference fit. When the superconducting coil is cooled, the inner and outer flanges shrink relative to each other to firmly fix the heat insulation cylinder 20 between them.

[0046] In one of the specific embodiments of the present application, as shown in Figure 1 and Figure 2 , the support part 1 includes a support sleeve 10 and a support platform 11 arranged at the top of the support sleeve 10. The support platform 11 can be directly connected in contact with the superconducting coil, and the support sleeve 10 is used to connect the support platform 11 and the outer flange 401. The bottom of the support sleeve 10 can form a flange protruding outward in the radial direction thereof, so that the flange can be fixedly connected with the top of the outer flange 401 (such as the connecting ring part of the outer flange 401) by screwing. The outer wall of the support sleeve 10 is provided with a plurality of reinforcing ribs 12 extending in the height direction at intervals in the circumferential direction, such as two, three, four, etc. The support platform 11, the support sleeve 10 and the plurality of reinforcing ribs 12 can be integrally formed of a metal heat-conducting material, such as stainless steel material.

[0047] In one of the specific embodiments of the present application, as shown in Figure 1 and Figure 4 , the base 3 includes a first rotating part 31, and the first rotating part 31 is rotatably connected to the lower surface of the heat insulation plate 210 through a first pivot 32, as shown in Figure 1 , the extension direction of the first pivot 32 is parallel to the plane in which the lower surface of the heat insulation plate 210 lies, and the heat insulation plate 210 and each component on the upper end of the heat insulation plate 210 can rotate around the axis of the first pivot 32 with the first rotating part 31. The first rotating part 31 can be connected to the heat insulation plate 210 in a laminated manner through a plate-shaped connecting structure, and the laminated connection of the two plate-shaped structures is more reliable and stable. The base 3 further includes two support arms 30 extending from the first rotating part 31, as shown in Figure 1As shown, two support arms 30 extend from the first rotating part 31 towards the direction away from the heat insulation plate 210, and the two support arms 30 have a predetermined included angle between each other and form a whole inverted V-shaped structure, which can provide two-point support for other components connected above the inverted V-shaped structure, thereby improving the stability and reliability of the support structure. The bottom end of each support arm 30 is connected to a fixed position 37 through a second rotating part 34, and each second rotating part 34 can rotate around a second pivot 35 extending parallel to the lower surface of the heat insulation plate 210, so that the heat insulation plate 210 and each component on the upper end of the heat insulation plate 210 and the two support arms 30 can rotate around the axis of the second pivot 35 with the second rotating part 34. The two second pivots 35 extend parallel to each other, and the axis of each second pivot 35 is perpendicular to the axis of the first pivot 32. The rotatable structure can allow the superconducting coil to produce a deflection within a certain range, thereby buffering the impact force caused by the strong magnetic field and improving the structural stability.

[0048] It should be noted that, in order to ensure that the support arm 30 has sufficient supporting force, the support arm 30 can be made of high-strength stainless steel material, such as inconel718.

[0049] It can be understood that when the plurality of superconducting coils are arranged in a ring structure, and the axis of the first pivot 32 of the base 3 of the corresponding support structure of each superconducting coil is parallel to the radial direction of the ring structure, when the adjacent two superconducting coils are affected by temperature changes or magnetic fields and tend to move closer to or away from each other, the superconducting coil and the corresponding support structure of the support part 1, the heat insulation assembly 2 and the first rotating part 31 can rotate around the corresponding first pivot 32. And when the superconducting coil is cooled, for example, the temperature is cooled from 293K to 4.2K, the plurality of superconducting coils will also tend to contract towards the center of the ring structure. For example, the stellarator is usually formed by arranging a plurality of superconducting coils in a ring shape, and when cooled, the superconducting coils will contract towards the center of the ring. Since thermal stress is a secondary stress, if the radial displacement of the superconducting coil is not released at this time, a huge stress will be generated on the support structure, which will damage the structure. Therefore, the base 3 provided in the embodiment can solve the problem. Since the second rotating part 34 in the base 3 can be sleeved on the second pivot 35 to rotate, the superconducting coil and the corresponding support structure of the support part 1, the heat insulation assembly 2, the support arm 30 and the second rotating part 34 can rotate around the corresponding second pivot 35, and contract towards the center of the ring structure, thereby releasing the radial displacement to compensate for the radial contraction of the superconducting coil, and reducing the overall stress of the structure to avoid damage to the structure.

[0050] In one of the specific embodiments of the present application, as shown in Figure 4As shown, the first rotating part 31 comprises a first rotating ring, and the second rotating part 34 is a second rotating ring arranged at the bottom end of each support arm 30, and the annular structure is sleeved on the corresponding pivot to realize the rotating connection. Figure 1 As shown, the heat insulation plate 210 and the first pivot 32 can be connected together through the connecting lug structure, and specifically, a pair of oppositely spaced first connecting lugs 33 can be protruded on the lower surface of the heat insulation plate 210, and a connecting hole can be formed on each first connecting lug 33. Figure 5 As shown, the first rotating ring is inserted into the gap between the pair of first connecting lugs 33, so that the first connecting ring is clamped between the pair of first connecting lugs 33, and the pair of first connecting lugs 33 and the first rotating ring are rotatably connected together through the first pivot 32. Figure 4 As shown, the two support arms 30 can extend from the side of the first rotating ring away from the heat insulation plate 210, for example Figure 4 The bottom of the first rotating ring. Figure 1 As shown, the second pivot 35 can be connected to the fixed position 37 such as the bottom wall, the side wall or the ground of the nuclear fusion device through the connecting lug structure, and specifically, two pairs of second connecting lugs 36 corresponding to each second rotating ring can be protruded on the fixed position 37, the two second connecting lugs 36 in each pair of second connecting lugs 36 are arranged at intervals, and a connecting hole is formed on each second connecting lug 36. Figure 6 As shown, each second rotating ring is inserted into the gap between the corresponding pair of second connecting lugs 36, so that the second connecting ring is clamped between the pair of second connecting lugs 36, and the pair of second connecting lugs 36 and the second rotating ring are rotatably connected together through the second pivot 35.

[0051] Since the superconducting coil has a large volume, the load when subjected to thermal stress or strong magnetic field force will increase, in order to ensure that the support structure can withstand strong shear force and load when the superconducting coil is deflected, the bearing capacity requirements of the first pivot 32 and the second pivot 35 are higher, therefore, the structure of the first pivot 32 and the second pivot 35 needs to be strengthened, for example, the radial size of the connecting shaft is increased, the abutting structure such as the stepped portion is arranged, the adjusting and locking structure such as the adjusting bolt is adjusted, and the stability and reliability of the structure are ensured.

[0052] In one of the specific embodiments of the utility model, as shown in the figure, Figure 5 As shown, the first pivot 32 can comprise a first connecting bolt 320, a first center pin cylinder 321 and a first sleeve 322 which are coaxially sleeved, and the structure of the three being sleeved with each other is the core structure for realizing the pivotally connected connection of the first connecting lug 33 and the first connecting ring. Figure 5 As shown, the first connecting bolt 320 is arranged on the first connecting lug 33. Figure 5The outer side of the first connecting lug 33 on the left side extends to the outer side of the first connecting lug 33 on the right side, and the length of the first connecting bolt 320 is greater than the distance between the outer walls of the pair of first connecting lugs 33. The first center pin barrel 321 is sleeved on the outer periphery of the first connecting bolt 320, extends from the first connecting lug 33 on the left side to the first connecting lug 33 on the right side, and the left end of the first center pin barrel 321 protrudes from the outer wall of the first connecting lug 33 on the left side. The left end of the first connecting bolt 320 can be provided with a first circumferential flange 3201, so that the first circumferential flange 3201 abuts against the left outer wall of the first center pin barrel 321. The left end of the first center pin barrel 321 can be provided with a first circumferential protrusion 3212, and the first circumferential protrusion 3212 can be fixed to the outer wall of the first connecting lug 33 on the left side by the first adjusting bolt 325.

[0053] The outer periphery of the first center pin barrel 321 further forms a first step portion 3211, and the step surface of the first center pin barrel 321 can abut against the inner surface of the first connecting lug 33 on the right side. The first sleeve 322 can be sleeved on the region of the outer periphery of the first center pin barrel 321 where the first step portion 3211 is not formed, for example Figure 5 the region on the left side of the first center pin barrel 321, and the end face of the first sleeve 322 can abut against the inner wall of the first connecting lug 33 on the right side.

[0054] The first connecting bolt 320, the first center pin barrel 321 and the first sleeve 322 are inserted from the connecting hole of the first connecting lug 33 on the left side and pass through the center hole of the first rotating ring. The first connecting bolt 320 and the first step portion 3211 of the first center pin barrel 321 further pass through the connecting hole of the first connecting lug 33 on the right side. The right end of the first connecting bolt 320 protrudes from the right end of the first center pin barrel 321, and the first center pin barrel 321 and the first connecting bolt 320 can be crimped on the outer side of the first connecting lug 33 on the right side by the first annular cover plate 323 sleeved on the first connecting bolt 320 to limit the axial movement. The first annular cover plate 323 covers the corresponding connecting hole and is fixed to the outer wall of the first connecting lug 33 on the right side by the first connecting nut 324 threaded on the right end of the first connecting bolt 320. The first annular cover plate 323 and the outer wall of the first connecting lug 33 on the right side can be fixedly connected by the second adjusting bolt 326.

[0055] In one of the specific embodiments of the utility model, as shown in Figure 6 each second pivot 35 comprises a second connecting bolt 350, a second center pin barrel 351 and a second sleeve 352 which are coaxially sleeved, and the structure of the three being sleeved with each other is the core structure for realizing the pivotally connected structure of the second connecting lug 36 and the second connecting ring. Specifically, as shown in Figure 6 the second connecting bolt 350 is sleeved on the outer periphery of the second connecting lug 36 on the left side and extends to the second connecting lug 36 on the right side.Figure 6 The outer side of the second connecting lug 36 on the left side extends to the outer side of the second connecting lug 36 on the right side, and the length of the second connecting bolt 350 is greater than the distance between the outer walls of the pair of second connecting lugs 36. The second center pin barrel 351 is sleeved on the outer periphery of the second connecting bolt 350, extends from the second connecting lug 36 on the left side to the second connecting lug 36 on the right side, and the left end of the second center pin barrel 351 protrudes from the outer wall of the second connecting lug 36 on the left side. The left end of the second connecting bolt 350 can be provided with a second circumferential flange 3501, so that the second circumferential flange 3501 abuts against the left outer wall of the second center pin barrel 351. The left end of the second center pin barrel 351 can be provided with a second circumferential protrusion 3512, and the second circumferential protrusion 3512 can be fixed to the outer wall of the second connecting lug 36 on the left side by a third adjusting bolt 355.

[0056] The outer periphery of the second center pin barrel 351 further forms a second stepped portion 3511, and the stepped surface of the second center pin barrel 351 can abut against the inner surface of the second connecting lug 36 on the right side. The second sleeve 352 can be sleeved on the region of the outer periphery of the second center pin barrel 351 where the second stepped portion 3511 is not formed, for example Figure 6 The region of the second center pin barrel 351 on the left side, and the end surface of the second sleeve 352 can abut against the inner wall of the second connecting lug 36 on the right side.

[0057] The second connecting bolt 350, the second center pin barrel 351 and the second sleeve 352 are inserted from the connecting hole of the second connecting lug 36 on the left side and pass through the center hole of the second rotating ring. The second connecting bolt 350 and the second stepped portion 3511 of the second center pin barrel 351 also pass through the connecting hole of the second connecting lug 36 on the right side. The right end of the second connecting bolt 350 protrudes from the right end of the second center pin barrel 351, and the second center pin barrel 351 and the second connecting bolt 350 can be crimped on the outer side of the second connecting lug 36 on the right side by sleeving the second annular cover plate 353 on the second connecting bolt 350 to limit axial movement. The second annular cover plate 353 covers the corresponding connecting hole and is fixed to the outer wall of the second connecting lug 36 on the right side by screwing the second connecting nut 354 on the right end of the second connecting bolt 350. The fourth adjusting bolt 356 can be arranged between the second annular cover plate 353 and the outer wall of the second connecting lug 36 on the right side to fixedly connect them.

[0058] It should be noted that in addition to the specific embodiment described above, other advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure. Although the description of the present application will be introduced in combination with the preferred embodiments, it does not mean that the features of the present application are limited to the embodiments. On the contrary, the purpose of introducing the present application in combination with the embodiments is to cover other options or modifications that can be extended based on the claims of the present application. In order to provide a deep understanding of the present application, many specific details will be included in the following description. The present application can also be implemented without using these details. In addition, in order to avoid confusion or obscure the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0059] It should be noted that in this specification, similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0060] In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[0061] The terms "first", "second", and the like are only used for differentiation and cannot be understood as indicating or implying relative importance.

[0062] In the description of the present embodiment, it should also be noted that unless otherwise explicitly specified and limited, the terms "set", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present embodiment can be understood according to the specific circumstances.

[0063] Although the utility model has been illustrated and described by referring to certain preferred embodiments of the utility model, it should be understood by those skilled in the art that the above content is the further detailed description of the utility model combined with the specific embodiments, and the specific implementation of the utility model cannot be limited to these descriptions. Those skilled in the art can make various changes in form and details, including making several simple inferences or replacements, without departing from the spirit and scope of the utility model.

Claims

1. A support structure for a superconducting coil, characterized by, The support structure comprises a base, a support part arranged on the base, and a heat insulation assembly connecting the base and the support part; wherein The superconducting coil is fixed on the support part; The heat insulation assembly comprises a heat insulation cylinder, the upper end of the heat insulation cylinder is fixed on the lower end of the support part, and the lower end is connected to the top end of the base; wherein the lower end of the heat insulation cylinder and the top end of the base are connected by a heat insulation part, and the inside of the heat insulation cylinder is provided with a heat dissipation part, which is horizontally arranged along the radial direction of the heat insulation cylinder, and the outer peripheral wall is tightly attached to the inner wall of the heat insulation cylinder.

2. The support structure for a superconducting coil according to claim 1, wherein The heat dissipation part comprises a heat conduction plate, which is located in the middle of the heat insulation cylinder in the height direction of the heat insulation cylinder, and the outer peripheral wall is tightly attached to the inner wall of the heat insulation cylinder, and the outer surface of the heat conduction plate is coated with a heat conduction layer; and At least one side of the heat conduction plate is also provided with a cooling pipe, which is arranged in a spiral shape on the corresponding side surface of the heat conduction plate, and the inlet and outlet of the cooling pipe penetrate the side wall of the heat insulation cylinder and are located outside the heat insulation cylinder, respectively, wherein in the height direction, the outlet is higher than the inlet; wherein The outer periphery of the heat conduction plate is fixed in the heat insulation cylinder by a plurality of fastening members arranged along the circumference; and the heat insulation cylinder is made of glass steel material, and the heat conduction plate is made of metal heat conduction material.

3. The support structure for a superconducting coil according to claim 2, wherein The heat insulation part comprises a heat insulation plate, the upper surface of the heat insulation plate is fixedly connected with the lower end of the heat insulation cylinder, and the lower surface is fixedly connected with the top end of the base; wherein in the height direction, the heat insulation plate covers at least the lower end opening of the heat insulation cylinder.

4. The support structure for a superconducting coil of claim 3, wherein, The support structure further comprises a connecting assembly, which comprises an upper connecting part and a lower connecting part; wherein The upper connecting part is arranged between the upper end of the heat insulation cylinder and the lower end of the support part, and comprises an inner flange and an outer flange, the inner flange is sleeved on the inner periphery of the upper end of the heat insulation cylinder, the outer flange is sleeved on the outer periphery of the upper end of the heat insulation cylinder, and the upper ends of the inner flange and the outer flange are fixedly connected with each other, and the upper end of the heat insulation cylinder is clamped in the circumferential gap between the inner flange and the outer flange; and the top of the outer flange is fixedly connected with the lower end of the support part; and The lower connecting part comprises a lower connecting plate, the lower end of the heat insulation cylinder is fixedly connected with the upper surface of the lower connecting plate, and the bottom surface of the lower connecting plate is overlapped on the top surface of the heat insulation plate; The inner flange, the outer flange and the lower connecting plate are all made of metal heat conduction material.

5. The support structure for a superconducting coil of claim 4, wherein, The support part comprises a support sleeve and a support platform arranged on the top of the support sleeve; wherein The support sleeve is fixed on the top of the outer flange, and the outer wall is provided with a plurality of reinforcing ribs extending in the height direction at intervals along the circumference; and The support platform, the support sleeve and the plurality of reinforcing ribs are formed in one piece and are all made of metal heat conduction material.

6. The support structure for a superconducting coil of claim 5, wherein, The base comprises a first rotating part and two support arms extending from the first rotating part; wherein The first rotating part is pivotally connected to the lower surface of the heat insulation plate through a first pivot, and the first pivot extends parallel to the lower surface of the heat insulation plate; The two support arms extend from the first rotating part towards the heat insulation plate in a predetermined angle and form a reverse V-shaped structure as a whole; and the bottom end of each support arm is pivotally connected to a fixed position through a second rotating part; Each second rotating part can rotate around a second pivot extending parallel to the lower surface of the heat insulation plate and perpendicular to the first pivot, and the two second pivots extend parallel to each other.

7. The support structure for a superconducting coil of claim 6, wherein, The first rotating part comprises a first rotating ring, and the lower surface of the heat insulation plate is provided with a pair of first connecting ears clamping the first rotating ring, and the pair of first connecting ears and the first rotating ring are pivotally connected together through the first pivot; and The two support arms extend from the first rotating ring away from the heat insulation plate, and the second rotating part is a second rotating ring arranged at the bottom end of each support arm; wherein the fixed position is provided with two pairs of second connecting ears corresponding to each second rotating ring, each second rotating ring is clamped in a corresponding pair of second connecting ears, and is pivotally connected to the corresponding pair of second connecting ears through a corresponding second pivot. The first pivot comprises a coaxially sleeved first connecting bolt, a first center pin barrel and a first sleeve, the first center pin barrel is sleeved on the outer periphery of the first connecting bolt, and the outer periphery of one end of the first center pin barrel is formed with a first step portion, the first sleeve is sleeved on the region of the outer periphery of the first center pin barrel without the first step portion; and the first connecting bolt, the first center pin barrel and the first sleeve are inserted into and pass through the center hole of the first rotating ring from the connecting hole of one of the first connecting ears, the first connecting bolt and the first step portion of the first center pin barrel pass through the connecting hole of the other first connecting ear, the step surface of the first center pin barrel and the end surface of the first sleeve abut against the inner wall of the other first connecting ear, and both ends of the first connecting bolt extend out of the corresponding end portions of the first center pin barrel; and 8. The support structure for a superconducting coil of claim 7, wherein, The first connecting bolt and the one side end portion of the first center pin barrel both extend out of and are fixed to the outer wall of the one first connecting ear, and the other side end portion extends out of and is fixed to the outer wall of the other first connecting ear; wherein The one side end portion of the first connecting bolt is provided with a first circumferential flange abutting against the outer wall of the first center pin barrel, and the one side end portion of the first center pin barrel is provided with a first circumferential protrusion fixed to the outer wall of the one first connecting ear; and The one side end portion of the first connecting bolt is provided with a first circumferential flange abutting against the outer wall of the first center pin barrel, and the one side end portion of the first center pin barrel is provided with a first circumferential protrusion fixed to the outer wall of the one first connecting ear; and ​ The other side end of the first connecting bolt protrudes from the outer wall of the other first connecting lug and is fixed to the outer wall of the other first connecting lug through a first annular cover plate and a first connecting nut; wherein the first annular cover plate is sleeved on the other side end of the first connecting bolt, abuts against the outer wall of the other first connecting lug, and covers the corresponding connecting hole, and the first connecting nut is threadedly sleeved on the other side end of the first connecting bolt and fixes the first annular cover plate to the outer wall of the other first connecting lug.

9. The support structure for a superconducting coil of claim 8, wherein, Wherein Each of the second pivots comprises a second connecting bolt, a second center pin barrel and a second sleeve, the second center pin barrel is sleeved on the outer periphery of the second connecting bolt, and the outer periphery of one end of the second center pin barrel is formed with a second step portion, and the second sleeve is sleeved on the region of the outer periphery of the second center pin barrel where the second step portion is not formed; and the second connecting bolt, the second center pin barrel and the second sleeve are inserted into and pass through the center hole of the second rotating ring from the connecting hole of one of the second connecting lugs, and the second connecting bolt and the second step portion of the second center pin barrel pass through the connecting hole of the other of the second connecting lugs, the stepped surface of the second center pin barrel and the end surface of the second sleeve abut against the inner wall of the other of the second connecting lugs, and the two ends of the second connecting bolt protrude from the corresponding ends of the second center pin barrel; and The one side end of the second connecting bolt protrudes from and is fixed to the outer wall of the one of the second connecting lugs, and the other side end protrudes from and is fixed to the outer wall of the other of the second connecting lugs; wherein The one side end of the second connecting bolt is provided with a second circumferential flange, the second circumferential flange abuts against the outer wall of the second center pin barrel, and the two side ends of the second center pin barrel are provided with second circumferential protrusions, and the second circumferential protrusions are fixed to the outer wall of the one of the second connecting lugs; and The other side end of the second connecting bolt protrudes from the outer wall of the other of the second connecting lugs and is fixed to the outer wall of the other of the second connecting lugs through a second annular cover plate and a second connecting nut; wherein the second annular cover plate is sleeved on the other side end of the second connecting bolt, abuts against the outer wall of the other of the second connecting lugs, and covers the corresponding connecting hole, and the second connecting nut is threadedly sleeved on the other side end of the second connecting bolt and fixes the second annular cover plate to the outer wall of the other of the second connecting lugs.

10. The support structure for a superconducting coil of claim 9, wherein, Wherein The first circumferential protrusion of the first center pin barrel and the outer wall of the one of the first connecting lugs are further provided with a first adjusting bolt, and the first annular cover plate and the outer wall of the other of the first connecting lugs are further provided with a second adjusting bolt; and The second circumferential protrusion of the second center pin barrel and the outer wall of the one of the second connecting lugs are further provided with a third adjusting bolt, and the second annular cover plate and the outer wall of the other of the second connecting lugs are further provided with a fourth adjusting bolt.

Images