Support structure and nuclear fusion device

Abstract

The invention relates to the technical field of nuclear fusion, and provides a supporting structure and a nuclear fusion device. The supporting structure comprises a first connecting assembly, a second connecting assembly, a first supporting assembly and a second supporting assembly. The first connecting assembly is connected with a lower window of the vacuum chamber; the second connecting assembly is connected with the fixed foundation; the first supporting assembly is supported between the first connecting assembly and the second connecting assembly, the first supporting assembly comprises two sets of hinge structures, and the two sets of hinge structures are arranged side by side in the radial direction of the vacuum chamber and are configured into different specifications; the second supporting assembly is supported between the first connecting assembly and the second connecting assembly and comprises two sets of elastic plate arrays, and the two sets of elastic plate arrays are arranged on the two sides of the first supporting assembly in the radial direction of the vacuum chamber. The supporting structure disclosed by the invention not only can stably bear the load of the vacuum chamber in the vertical direction, but also allows the vacuum chamber to generate smaller radial displacement due to baking, and can play a role in stably supporting the vacuum chamber.

Description

Technical Field

[0001] This invention relates to the field of nuclear fusion technology, and more particularly to a support structure and a nuclear fusion device. Background Technology

[0002] Using magnetic confinement nuclear fusion to obtain energy is considered the most likely way to solve the human energy crisis in the future. Tokamak fusion devices are one of the most effective means of studying magnetic confinement nuclear fusion. The vacuum chamber is the core component of the tokamak fusion device. It is a ring structure that maintains a high vacuum environment for plasma combustion and provides support for internal components.

[0003] like Figure 1 As shown in the cross-sectional schematic diagram of vacuum chamber 1, vacuum chamber 1 includes a shell 11 and an upper window 101, a middle window 102 and a lower window 103 disposed on the shell 11. A support structure 2 is disposed on the lower side of the lower window 103. The support structure 2 is used to support the entire vacuum chamber 1 in the vertical direction, ensuring the stability of the vacuum chamber system under conditions such as self-weight, earthquake, and plasma rupture events.

[0004] However, in practical applications, it has been found that existing support structures are difficult to stably withstand the vertical load of the vacuum chamber while allowing for small radial displacements caused by baking, making it difficult to provide stable support for the vacuum chamber. Summary of the Invention

[0005] This invention provides a support structure and a nuclear fusion device to at least solve or improve the problem that existing support structures are unable to stably withstand the vertical load of the vacuum chamber while allowing for a small radial displacement of the vacuum chamber due to baking.

[0006] In a first aspect, the present invention provides a support structure for supporting the vacuum chamber of a nuclear fusion device, the support structure comprising: A first connecting component is configured to connect to the lower window of the vacuum chamber; The second connecting component is configured to connect to the fixed base and is disposed below the first connecting component; A first support assembly is supported between the first connecting assembly and the second connecting assembly. The first support assembly includes two sets of hinge structures, which are arranged side by side along the radial direction of the vacuum chamber and configured with different specifications. The second support assembly is positioned between the first connecting assembly and the second connecting assembly. The second support assembly includes two sets of elastic plate arrays, which are arranged radially on both sides of the first support assembly along the vacuum chamber.

[0007] According to the support structure provided by the present application, the hinge structure comprises: a first hinge seat, which is detachably connected with the first connecting component; a hinge arm, which is configured to be vertically arranged, and the upper end of the hinge arm is rotationally connected with the first hinge seat through a first hinge shaft; a second hinge seat, which is detachably connected with the second connecting component, and the lower end of the hinge arm is rotationally connected with the second hinge seat through a second hinge shaft.

[0008] According to the support structure provided by the present application, the diameter of the first hinge shaft of the hinge structure near the center of the vacuum chamber is greater than the diameter of the first hinge shaft of the hinge structure far from the center of the vacuum chamber; the diameter of the second hinge shaft of the hinge structure near the center of the vacuum chamber is greater than the diameter of the second hinge shaft of the hinge structure far from the center of the vacuum chamber; the thickness of the hinge arm of the hinge structure near the center of the vacuum chamber is greater than the thickness of the hinge arm of the hinge structure far from the center of the vacuum chamber.

[0009] According to the support structure provided by the present application, the first hinge seat has three first hinge ears, which are spaced apart from each other and arranged side by side; the upper end of the hinge arm has two second hinge ears, which are spaced apart from each other and arranged side by side to form a first recess with the notch facing upward between the two second hinge ears; the three first hinge ears and the two second hinge ears are staggered and hinged through the first hinge shaft, and the middle first hinge ear is supported on the groove bottom of the first recess; the second hinge seat has three third hinge ears, which are spaced apart from each other and arranged side by side; the lower end of the hinge arm has two fourth hinge ears, which are spaced apart from each other and arranged side by side to form a second recess with the notch facing downward between the two fourth hinge ears; the three third hinge ears and the two fourth hinge ears are staggered and hinged through the second hinge shaft, and the middle third hinge ear is supported on the groove bottom of the second recess.

[0010] According to the support structure provided by the present application, the array of elastic plates comprises a plurality of elastic plates, which are spaced apart from each other and arranged side by side along the radial direction of the vacuum chamber; the side of the first connecting component facing the second connecting component is provided with a plurality of first positioning grooves, and the upper end of each of the plurality of elastic plates is correspondingly inserted into the first positioning grooves and welded with the first connecting component; The second connecting assembly is provided with a plurality of second positioning grooves on one side thereof facing the first connecting assembly, and the lower ends of the plurality of elastic plates are correspondingly inserted into the plurality of second positioning grooves and welded with the second connecting assembly.

[0011] According to the support structure provided by the application, the distance between any two adjacent elastic plates is not more than the thickness of the elastic plate; And / or, the ratio of the length of the elastic plate array along the radial direction of the vacuum chamber to the height of the elastic plate array is not less than 1 / 10; And / or, two sets of elastic plate arrays are symmetrically arranged on two sides of the first support assembly, and the geometric centers of the first connecting assembly, the first support assembly and the second connecting assembly are distributed on the same straight line in the vertical direction.

[0012] According to the support structure provided by the application, the first connecting assembly comprises: A connecting block, the upper end of the connecting block is configured to be connected with the lower window of the vacuum chamber; An insulating plate, arranged on the lower side of the connecting block and welded with the lower end of the connecting block; A first adapter plate, arranged on the lower side of the insulating plate, the insulating plate, the first adapter plate and the first hinge seat are connected as a whole, and the upper end of the elastic plate array is connected with the first adapter plate.

[0013] According to the support structure provided by the application, the upper end of the connecting block is provided with a clamping groove, the clamping groove is configured to be clamped on both sides of the lower window, and the groove bottom of the clamping groove is matched with the bottom wall of the lower window; Wherein, along the circumferential direction of the clamping groove, the connecting block is configured to be welded with the lower window.

[0014] According to the support structure provided by the application, the second connecting assembly comprises: A second adapter plate, the lower end of the elastic plate array is connected with the second adapter plate; A fixed bottom plate, arranged on the lower side of the second adapter plate, the second hinge seat, the second adapter plate and the fixed bottom plate are connected as a whole, and the fixed bottom plate is configured to be connected with the fixed base.

[0015] In a second aspect, the application further provides a nuclear fusion device, comprising: a vacuum chamber and a support structure as described above; The vacuum chamber is provided with a plurality of lower windows along the circumferential direction, and the plurality of lower windows are correspondingly arranged with the plurality of support structures.

[0016] The support structure and the nuclear fusion device provided by the application, when applied to support the vacuum chamber of the nuclear fusion device, through the setting of the first connecting assembly, the second connecting assembly, the first support assembly and the second support assembly, the two sets of hinge structures corresponding to the first support assembly and the two sets of elastic plate arrays corresponding to the second support assembly are commonly supported between the first connecting assembly and the second connecting assembly, not only can the two sets of hinge structures be based on the two sets of hinge structures to bear the load of the vacuum chamber in the vertical direction while allowing the vacuum chamber to have a smaller radial displacement, avoiding the damage of the whole support structure caused by the too large radial displacement, and the two sets of elastic plate arrays cooperating with the first support assembly can ensure the vertical height of the hinge structure corresponding to the first support assembly, and based on the load capacity and deformation characteristics of the two sets of elastic plate arrays, the two sets of elastic plate arrays can simultaneously adapt to the deformation of the working conditions of the first support assembly, ensuring the better stability of the first support assembly in the process of radial displacement of the vacuum chamber, assisting the first support assembly to bear the load of the vacuum chamber in the vertical direction, and finally ensuring the stability of the whole support structure. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0018] Figure 1 is a structure diagram of the relative arrangement of the vacuum chamber and the support structure in the prior art.

[0019] Figure 2 is a three-dimensional structure diagram of the support structure provided by the application.

[0020] Figure 3 is an exploded structure diagram of the support structure provided by the application. Figure 2

[0021] Figure 4 is a three-dimensional structure diagram of the hinge structure provided by the application.

[0022] Figure 5 is an exploded structure diagram of the support structure provided by the application. Figure 4

[0023] Figure 6 is a structure diagram of the elastic plate array provided by the application.

[0024] DRAWINGS: 1, vacuum chamber; 11, shell; 101, upper window; 102, middle window; 103, lower window; ​​2, support structure; 21, first connecting assembly; 211, connecting block; 2110, clamping groove; 212, insulating plate; 2101, first positioning groove; 213, first adapter plate; 22, second connecting assembly; 221, second adapter plate; 222, fixed bottom plate; 2201, second positioning groove; 23, first support assembly; 231, hinge structure; 2311, first hinge seat; 2312, hinge arm; 2313, second hinge seat; 2301, first hinge lug; 2302, second hinge lug; 2303, third hinge lug; 2304, fourth hinge lug; 2310, first hinge shaft; 2320, second hinge shaft; 2330, first recess; 2340, second recess; 24, second support assembly; 241, elastic plate array. DETAILED DESCRIPTION

[0025] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below in conjunction with the drawings in the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0026] The support structure and the nuclear fusion device provided by the embodiments of the present application will be described in detail below in conjunction with specific embodiments and application scenarios. Figures 1-6

[0027] In a first aspect, as shown in Figure 1 , Figure 2 and Figure 3 , the present application provides a support structure 2 for supporting a vacuum chamber 1 of a nuclear fusion device, the support structure 2 comprising a first connecting assembly 21, a second connecting assembly 22, a first support assembly 23 and a second support assembly 24; The first connecting assembly 21 is configured to connect a lower window 103 of the vacuum chamber 1, and the second connecting assembly 22 is configured to connect a fixed base and is arranged on the lower side of the first connecting assembly 21; the fixed base can be a Dewar base or other fixed structure arranged on the ground; The first support assembly 23 is supported between the first connecting assembly 21 and the second connecting assembly 22, and the first support assembly 23 comprises two sets of hinge structures 231, which are arranged side by side along the radial direction of the vacuum chamber 1 and are configured to be different specifications; The second support assembly 24 is supported between the first connecting assembly 21 and the second connecting assembly 22, and the second support assembly 24 comprises two sets of elastic plate arrays 241, which are arranged on both sides of the first support assembly 23 along the radial direction of the vacuum chamber 1. ​

[0028] It is understandable that the first connecting component 21 and the second connecting component 22 are along Figure 2 The vertical direction shown is arranged with the first connecting component 21 located on the lower side of the connecting channel corresponding to the lower window 103 of the vacuum chamber 1. The first support component 23 and the second support component 24 are both vertically arranged and supported between the first connecting component 21 and the second connecting component 22.

[0029] For the first support component 23, both sets of hinge structures 231 corresponding to the first support component 23 are arranged in the vertical direction. The upper end of the hinge structure 231 is rotatably arranged with the first connecting component 21 located on the upper side in the radial direction perpendicular to the vacuum chamber 1, and the lower end of the hinge structure 231 is rotatably arranged with the second connecting component 22 located on the lower side in the radial direction perpendicular to the vacuum chamber 1.

[0030] like Figure 2 As shown, the first connecting component 21, the two sets of hinge structures 231 and the second connecting component 22 form a parallel four-bar linkage mechanism. However, since the specifications of the two sets of hinge structures 231 are different, the two sets of hinge structures 231 remain vertically distributed when there is no external force. When the vacuum chamber 1 undergoes a small radial displacement due to baking, the entire parallel four-bar linkage mechanism will swing slightly accordingly, so that the entire support structure 2 can stably bear the load of the vacuum chamber 1 in the vertical direction under various working conditions, and has the function of preventing the vacuum chamber 1 from generating a large radial displacement.

[0031] As for the second support component 24, since the second support component 24 includes two sets of elastic plate arrays 241 disposed on both sides of the first support component 23, and each set of elastic plate arrays 241 is disposed in the vertical direction, the two sets of elastic plate arrays 241 cooperate with the first support component 23 to ensure the vertical height that the hinge structure 231 corresponding to the first support component 23 can be set, and also enhance the stability of the entire support structure 2. It can stably bear the load of the vacuum chamber 1 in the vertical direction. Furthermore, when the vacuum chamber 1 undergoes a small radial displacement due to baking, the two sets of elastic plate arrays 241 can simultaneously adapt to the working conditions of the first support component 23 and deform accordingly. They have good shear resistance, allowing the vacuum chamber 1 to undergo a small radial displacement due to baking, and can also bear the load of the vacuum chamber 1 in the vertical direction, thereby ensuring the stability of the entire support structure.

[0032] The support structure 2 shown in the application, when applied to the vacuum chamber 1 supporting the nuclear fusion device, by setting the first connecting assembly 21, the second connecting assembly 22, the first support assembly 23 and the second support assembly 24, the two sets of hinge structures 231 corresponding to the first support assembly 23 and the two sets of elastic plate arrays 241 corresponding to the second support assembly 24 are commonly supported between the first connecting assembly 21 and the second connecting assembly 22. Not only can the two sets of hinge structures 231 be based on the two sets of hinge structures 231 to better withstand the load of the vacuum chamber 1 in the vertical direction while allowing the vacuum chamber 1 to have a smaller radial displacement, avoiding the destruction of the entire support structure caused by excessive radial displacement, but also the two sets of elastic plate arrays 241 cooperate with the first support assembly 23 to ensure the vertical height of the hinge structure 231 corresponding to the first support assembly 23. Based on the load capacity and deformation characteristics of the two sets of elastic plate arrays 241, the two sets of elastic plate arrays 241 can simultaneously adapt to the working conditions of the first support assembly 23 to deform, ensuring that the first support assembly 23 remains stable during the radial displacement of the vacuum chamber 1, assisting the first support assembly 23 to withstand the load of the vacuum chamber 1 in the vertical direction, and ultimately ensuring the stability of the entire support structure.

[0033] In some embodiments, as shown in Figure 2 、 Figure 4 and Figure 5 , the hinge structure 231 includes: a first hinge seat 2311, a hinge arm 2312 and a second hinge seat 2313, the first hinge seat 2311, the hinge arm 2312 and the second hinge seat 2313 can be configured as metal pieces, for example, the metal pieces are stainless steel components made of 316L(N) stainless steel; The first hinge seat 2311 is detachably connected with the first connecting assembly 21; the hinge arm 2312 is vertically arranged, and the upper end of the hinge arm 2312 is rotationally connected with the first hinge seat 2311 through a first hinge shaft 2310; the second hinge seat 2313 is detachably connected with the second connecting assembly 22, and the lower end of the hinge arm 2312 is rotationally connected with the second hinge seat 2313 through a second hinge shaft 2320.

[0034] It can be understood that the first hinge seat 2311 is detachably arranged on the lower side of the first connecting assembly 21, and the second hinge seat 2313 is detachably arranged on the upper side of the second connecting assembly 22; wherein the central axis of the first hinge seat 2311 and the central axis of the second hinge seat 2313 are parallel to each other and are horizontally distributed.

[0035] In actual applications, in order to ensure the compactness of the arrangement of the two sets of hinge structures 231, the two sets of hinge structures 231 can share one first hinge seat 2311 and share one second hinge seat 2313, that is, the hinge arms 2312 corresponding to the two sets of hinge structures 231 are arranged side by side, the upper ends of the two hinge arms 2312 are rotationally connected with the first hinge seat 2311, and the lower ends of the two hinge arms 2312 are rotationally connected with the second hinge seat 2313.

[0036] In some embodiments, as shown in Figure 2 、 Figure 4 and Figure 5 , the diameter of the first hinge shaft 2310 of the hinge structure 231 close to the center of the vacuum chamber 1 is greater than the diameter of the first hinge shaft 2310 of the hinge structure 231 away from the center of the vacuum chamber 1, the diameter of the second hinge shaft 2320 of the hinge structure 231 close to the center of the vacuum chamber 1 is greater than the diameter of the second hinge shaft 2320 of the hinge structure 231 away from the center of the vacuum chamber 1, and the thickness of the hinge arm 2312 of the hinge structure 231 close to the center of the vacuum chamber 1 is greater than the thickness of the hinge arm 2312 of the hinge structure 231 away from the center of the vacuum chamber 1. Such a design can ensure that the two sets of hinge structures 231 are configured to be different specifications, and the parallel four-bar linkage mechanism composed of the first connecting assembly 21, the two sets of hinge structures 231, and the second connecting assembly 22 can maintain a relatively stable support state and prevent the vacuum chamber 1 from generating a larger radial displacement.

[0037] In some embodiments, as shown in Figure 4 and Figure 5 , in order to ensure the reliability of the hinge between the first hinge seat 2311 and the upper end of the hinge arm 2312, the first hinge seat 2311 can be provided with three first hinge ears 2301, the three first hinge ears 2301 are spaced apart from each other and arranged side by side; the upper end of the hinge arm 2312 is provided with two second hinge ears 2302, the two second hinge ears 2302 are spaced apart from each other and arranged side by side to form a first groove 2330 with the notch upward between the two second hinge ears 2302; the three first hinge ears 2301 and the two second hinge ears 2302 are staggered and arranged and are hinged through the first hinge shaft 2310, and the middle first hinge ear 2301 is supported on the groove bottom of the first groove 2330. Accordingly, in order to ensure the reliability of the hinge connection between the lower end of the second hinge seat 2313 and the hinge arm 2312, the second hinge seat 2313 can be provided with three third hinge ears 2303, which are spaced apart from each other and arranged side by side; the lower end of the hinge arm 2312 has two fourth hinge ears 2304, which are spaced apart from each other and arranged side by side, so as to form a second groove 2340 with the slot facing downward between the two fourth hinge ears 2304; the three third hinge ears 2303 and the two fourth hinge ears 2304 are staggered and hinged by the second hinge shaft 2320, with the middle third hinge ear 2303 supported on the bottom of the second groove 2340.

[0038] Based on the above structural design, an axial mutual constraint can be formed between the first hinge ear 2301 of the first hinge seat 2311 and the second hinge ear 2302 of the hinge arm 2312, and an axial mutual constraint can also be formed between the third hinge ear 2303 of the second hinge seat 2313 and the fourth hinge ear 2304 of the hinge arm 2312. This design structure can prevent the entire support structure 2 from completely collapsing in the vertical direction when the structure of the elastic plate array 241 fails.

[0039] Meanwhile, the first hinge ear 2301 located in the middle on the first hinge seat 2311 is supported on the bottom of the first groove 2330 corresponding to the upper end of the hinge arm 2312, and the third hinge ear 2303 located in the middle on the second hinge seat 2313 is supported on the bottom of the second groove 2340 corresponding to the lower end of the hinge arm 2312. This ensures that the first hinge seat 2311, the hinge arm 2312 and the second hinge seat 2313 can directly transmit vertical loads from top to bottom, ensuring that the support structure 2 can better withstand the load of the vacuum chamber 1 in the vertical direction, and reducing the impact of the load on the first hinge shaft 2310 and the second hinge shaft 2320 of the hinge structure 231.

[0040] In some embodiments, such as Figure 2 and Figure 3 As shown, the elastic plate array 241 includes multiple elastic plates, for example, the number of elastic plates can be 10 to 12, the multiple elastic plates are spaced apart from each other and arranged side by side along the radial direction of the vacuum chamber 1; wherein, the multiple elastic plates corresponding to the elastic plate array 241 are distributed at equal intervals along the radial direction of the vacuum chamber 1, the thickness of the elastic plate is much smaller than the width and length of the elastic plate, the elastic plate can be a stainless steel plate, for example, the elastic plate is roughly in the shape of an "I" and is made of 316L (N) stainless steel.

[0041] like Figure 2 and Figure 3As shown, the side of the first connecting assembly 21 facing the second connecting assembly 22 is provided with a plurality of first positioning grooves 2101, the upper ends of the plurality of elastic plates are correspondingly inserted into the plurality of first positioning grooves 2101, and are welded with the first connecting assembly 21; the side of the second connecting assembly 22 facing the first connecting assembly 21 is provided with a plurality of second positioning grooves 2201, the lower ends of the plurality of elastic plates are correspondingly inserted into the plurality of second positioning grooves 2201, and are welded with the second connecting assembly 22.

[0042] It can be understood that, in the case where the hinge structure 231 includes the first hinge seat 2311, the hinge arm 2312, and the second hinge seat 2313, each elastic plate of the elastic plate array 241 is arranged in parallel with the hinge arm 2312.

[0043] The side of the first connecting assembly 21 facing the second connecting assembly 22 is provided with a first reinforcing block, the lower surface of the first reinforcing block is provided with a plurality of first positioning grooves 2101 arranged along the radial direction of the vacuum chamber 1, the upper ends of the plurality of elastic plates can be correspondingly inserted into the plurality of first positioning grooves 2101, and are welded with the first reinforcing block, which can utilize the limiting effect of the first positioning grooves 2101 on the elastic plates to ensure the reliability of the welding between each elastic plate and the first connecting assembly 21, and avoid the high risk of welding only the elastic plates.

[0044] Correspondingly, the side of the second connecting assembly 22 facing the first connecting assembly 21 is provided with a second reinforcing block, the upper surface of the second reinforcing block is provided with a plurality of second positioning grooves 2201 arranged along the radial direction of the vacuum chamber 1, the lower ends of the plurality of elastic plates can be correspondingly inserted into the plurality of second positioning grooves 2201, and are welded with the second reinforcing block, which can utilize the limiting effect of the second positioning grooves 2201 on the elastic plates to ensure the reliability of the welding between each elastic plate and the second connecting assembly 22, and avoid the high risk of welding only the elastic plates.

[0045] Among them, in the vertical direction, the plurality of first positioning grooves 2101 and the plurality of second positioning grooves 2201 are arranged in pairs.

[0046] In some embodiments, as shown in Figure 2 and Figure 6 As shown, the spacing D between any two adjacent elastic plates does not exceed the thickness d of the elastic plate, for example, the spacing D between any two adjacent elastic plates and the thickness d of the elastic plate can be the same; at the same time, the ratio of the length of the elastic plate array 241 along the radial direction of the vacuum chamber 1 to the height of the elastic plate array 241 can be not less than 1 / 10, which is beneficial to control the deformation amount of each elastic plate, and also ensures the stiffness of the entire elastic plate array 241, so that the elastic plate array 241 has good load capacity on the basis of maintaining a certain deformation.

[0047] In some embodiments, as shown in Figure 2 and Figure 3 two sets of elastic plate arrays 241 are symmetrically arranged on both sides of the first support assembly 23, and the geometric centers of the first connecting assembly 21, the first support assembly 23 and the second connecting assembly 22 are distributed on the same straight line in the vertical direction. This design can ensure that the two sets of elastic plate arrays 241 perform shape switching with the first support assembly 23 as the center axis, and can effectively resist different vertical loads located on both sides of the first support assembly 23 based on the support structure composed of the first support assembly 23 and the two sets of elastic plate arrays 241 when subjected to a moment load.

[0048] In some embodiments, as shown in Figure 2 and Figure 3 The first connecting assembly 21 includes a connecting block 211, an insulating plate 212 and a first adapter plate 213. The connecting block 211 and the first adapter plate 213 can both be made of metal, for example, stainless steel components made of 316L (N) stainless steel, and the insulating plate 212 can be made of a G10 material plate. The upper end of the connecting block 211 is configured to be connected with the lower window 103 of the vacuum chamber 1. The insulating plate 212 is arranged on the lower side of the connecting block 211 and is welded with the lower end of the connecting block 211. The first adapter plate 213 is arranged on the lower side of the insulating plate 212. The insulating plate 212, the first adapter plate 213 and the first hinge seat 2311 are connected as a whole, and the upper end of the elastic plate array 241 is connected with the first adapter plate 213.

[0049] It can be understood that by configuring the insulating plate 212 in the first connecting assembly 21, electrical isolation between the connecting block 211 and the first adapter plate 213 can be achieved based on the insulating plate 212, which can effectively reduce the electromagnetic stress generated in the entire support structure 2 when the plasma breaks.

[0050] In actual application, each side of the insulating plate 212 is provided with a row of first mounting holes arranged in the radial direction of the vacuum chamber 1, each side of the first adapter plate 213 is provided with a row of second mounting holes arranged in the radial direction of the vacuum chamber 1, and each side of the first hinge seat 2311 is provided with a row of third mounting holes arranged in the radial direction of the vacuum chamber 1. The insulating plate 212, the first adapter plate 213 and the first hinge seat 2311 are fastened as a whole by sequentially threading the first reinforcing bolts in the first mounting holes, the second mounting holes and the third mounting holes. The first mounting holes, the second mounting holes and the third mounting holes can all be threaded holes.

[0051] In the assembly of the first connecting assembly 21, the lower end of the connecting block 211 is welded to the upper surface of the insulating plate 212 in the order from top to bottom, then the first mounting hole on the insulating plate 212 and the second mounting hole of the first adapter plate 213 located on the lower side are aligned, and the insulating plate 212 and the first adapter plate 213 are welded, then the second mounting hole of the first adapter plate 213 and the third mounting hole of the first hinge seat 2311 located on the lower side are aligned, and the insulating plate 212, the first adapter plate 213 and the first hinge seat 2311 are connected into one body by the first reinforcing bolt.

[0052] The lower surface of the first adapter plate 213 is provided with a plurality of first positioning grooves 2101 as shown in the above embodiment, the upper ends of the plurality of elastic plates of the elastic plate array 241 are inserted into the plurality of first positioning grooves 2101 one by one, and are welded into one body with the first adapter plate 213.

[0053] In some embodiments, as shown in Figure 1 , Figure 2 and Figure 3 , in order to ensure the reliability of the connection between the connecting block 211 and the lower window 103 and reduce the risk of circumferential movement of the vacuum chamber 1, the upper end of the connecting block 211 is provided with a clamping groove 2110, the extension direction of the horizontal projection of the clamping groove 2110 extends along the radial direction of the vacuum chamber 1, the clamping groove 2110 is configured to be clamped on both sides of the lower window 103, and the groove bottom of the clamping groove 2110 is fitted with the bottom wall of the lower window 103; wherein, along the circumference of the clamping groove 2110, the connecting block 211 is configured to be welded with the lower window 103.

[0054] The connecting block 211 can be a metal block, for example, a stainless steel member made of 316L (N) stainless steel.

[0055] In some embodiments, as shown in Figure 2 and Figure 3 , the second connecting assembly 22 includes a second adapter plate 221 and a fixed bottom plate 222, both of which can be metal pieces, for example, stainless steel members made of 316L (N) stainless steel. The lower end of the elastic plate array 241 is connected to the second adapter plate 221, the fixed bottom plate 222 is arranged on the lower side of the second adapter plate 221, the second hinge seat 2313, the second adapter plate 221 and the fixed bottom plate 222 are connected into one body, and the fixed bottom plate 222 is configured to be connected with the fixed foundation.

[0056] It can be understood that the upper surface of the second adapter plate 221 is provided with a plurality of second positioning grooves 2201 as shown in the above-mentioned embodiments, the lower ends of the plurality of elastic plates of the elastic plate array 241 are correspondingly inserted into the plurality of second positioning grooves 2201 one by one, and are welded with the second adapter plate 221 as a whole.

[0057] In actual application, each side of the second hinge seat 2313 is provided with a column of fourth mounting holes arranged along the radial direction of the vacuum chamber 1, each side of the second adapter plate 221 is provided with a column of fifth mounting holes arranged along the radial direction of the vacuum chamber 1, and each side of the fixed bottom plate 222 is provided with a column of sixth mounting holes arranged along the radial direction of the vacuum chamber 1. The second hinge seat 2313, the second adapter plate 221 and the fixed bottom plate 222 are fastened as a whole by the second reinforcing bolts sequentially threaded into the fourth mounting holes, the fifth mounting holes and the sixth mounting holes. The fourth mounting holes, the fifth mounting holes and the sixth mounting holes can be threaded holes.

[0058] When assembling the second connecting assembly 22, the fifth mounting holes of the second adapter plate 221 and the sixth mounting holes of the fixed bottom plate 222 located on the lower side are aligned, and the second adapter plate 221 and the fixed bottom plate 222 are welded. Then, the fourth mounting holes of the second hinge seat 2313 and the fifth mounting holes of the second adapter plate 221 located on the lower side are aligned, and the second hinge seat 2313, the second adapter plate 221 and the fixed bottom plate 222 are connected as a whole by the second reinforcing bolts.

[0059] In some embodiments, as shown in Figure 2 and Figure 3 In order to further fasten the elastic plate array 241 and enhance its tensile strength, a horizontally distributed first fastening hole can be arranged at the upper end of each elastic plate corresponding to the elastic plate array 241, a horizontally distributed second fastening hole can be arranged on the side wall of the first positioning groove 2101, and the upper end of each elastic plate and the first connecting assembly 21 can be connected as a whole by the first locking member threaded into the first fastening hole and the second fastening hole. Correspondingly, a horizontally distributed third fastening hole can be arranged at the lower end of each elastic plate corresponding to the elastic plate array 241, a horizontally distributed fourth fastening hole can be arranged on the side wall of the second positioning groove 2201, and the lower end of each elastic plate and the second connecting assembly 22 can be connected as a whole by the second locking member threaded into the third fastening hole and the fourth fastening hole.

[0060] In the second aspect, the embodiments of the present application also provide a nuclear fusion device, which comprises: a vacuum chamber 1 and a support structure 2 as above; the vacuum chamber 1 is provided with a plurality of lower windows 103 along the circumferential direction, and the plurality of lower windows 103 are arranged opposite to the plurality of support structures 2 one by one. The plurality of lower windows 103 can be uniformly distributed along the circumferential direction of the vacuum chamber 1.

[0061] It can be understood that the nuclear fusion device of the present embodiment includes all the technical solutions of the above-mentioned embodiments and has at least all the beneficial effects of the above-mentioned embodiments, and thus will not be described again.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A support structure for supporting the vacuum chamber of a nuclear fusion device, characterized in that, The supporting structure includes: A first connecting component is configured to connect to the lower window of the vacuum chamber; The second connecting component is configured to connect to the fixed base and is disposed below the first connecting component; A first support assembly is supported between the first connecting assembly and the second connecting assembly. The first support assembly includes two sets of hinge structures, which are arranged side by side along the radial direction of the vacuum chamber and configured with different specifications. The second support assembly is positioned between the first connecting assembly and the second connecting assembly. The second support assembly includes two sets of elastic plate arrays, which are arranged radially on both sides of the first support assembly along the vacuum chamber.

2. The support structure according to claim 1, characterized in that, The hinge structure includes: A first hinge base, wherein the first hinge base and the first connecting assembly are detachably connected; The articulated arm is configured to be vertically arranged, and the upper end of the articulated arm is rotatably connected to the first articulated seat via a first articulated shaft; The second hinge seat and the second connecting assembly are detachably connected, and the lower end of the hinge arm is rotatably connected to the second hinge seat via a second hinge shaft.

3. The support structure according to claim 2, characterized in that, The diameter of the first hinge axis of the hinge structure near the center of the vacuum chamber is larger than the diameter of the first hinge axis of the hinge structure away from the center of the vacuum chamber; The diameter of the second hinge axis of the hinge structure near the center of the vacuum chamber is larger than the diameter of the second hinge axis of the hinge structure away from the center of the vacuum chamber; The thickness of the hinge arm of the hinge structure near the center of the vacuum chamber is greater than the thickness of the hinge arm of the hinge structure away from the center of the vacuum chamber.

4. The support structure according to claim 2, characterized in that, The first hinge seat has three first hinge ears, which are spaced apart from each other and arranged side by side; the upper end of the hinge arm has two second hinge ears, which are spaced apart from each other and arranged side by side, to form a first groove with the slot facing upward between the two second hinge ears; the three first hinge ears and the two second hinge ears are staggered and hinged by the first hinge shaft, with the middle first hinge ear supported on the bottom of the first groove; The second hinge seat has three third hinge ears, which are spaced apart from each other and arranged side by side; the lower end of the hinge arm has two fourth hinge ears, which are spaced apart from each other and arranged side by side, to form a second groove with the slot facing downward between the two fourth hinge ears; the three third hinge ears and the two fourth hinge ears are staggered and hinged by the second hinge shaft, with the middle third hinge ear supported on the bottom of the second groove.

5. The support structure according to claim 2, characterized in that, The elastic plate array includes a plurality of elastic plates, which are spaced apart from each other and arranged side by side along the radial direction of the vacuum chamber; The first connecting component has a plurality of first positioning grooves on the side facing the second connecting component, and the upper ends of the plurality of elastic plates are inserted into the plurality of first positioning grooves one by one and welded to the first connecting component. The second connecting component has a plurality of second positioning grooves on the side facing the first connecting component, and the lower ends of the plurality of elastic plates are inserted into the plurality of second positioning grooves in a corresponding manner and are welded to the second connecting component.

6. The support structure according to claim 5, characterized in that, The distance between any two adjacent elastic plates shall not exceed the thickness of the elastic plate; And / or, the ratio of the length of the elastic plate array along the radial direction of the vacuum chamber to the height of the elastic plate array is not less than 1 / 10; And / or, the two sets of elastic plate arrays are symmetrically arranged on both sides of the first support component, and the geometric centers of the first connecting component, the first support component, and the second connecting component are distributed on the same straight line in the vertical direction.

7. The support structure according to any one of claims 2 to 6, characterized in that, The first connection component includes: A connecting block, the upper end of which is configured to connect to the lower window of the vacuum chamber; An insulating plate is disposed on the lower side of the connecting block and welded to the lower end of the connecting block; The first adapter plate is disposed on the lower side of the insulating plate. The insulating plate, the first adapter plate and the first hinge seat are connected as a whole. The upper end of the elastic plate array is connected to the first adapter plate.

8. The support structure according to claim 7, characterized in that, The upper end of the connecting block is provided with a slot, which is configured to engage with both sides of the lower window, and the bottom of the slot is in contact with the bottom wall of the lower window. The connecting block is configured to be welded to the lower window along the circumferential direction of the slot.

9. The support structure according to any one of claims 2 to 6, characterized in that, The second connection component includes: The second adapter plate is connected to the lower end of the elastic plate array. A fixed base plate is disposed on the lower side of the second adapter plate. The second hinge seat, the second adapter plate, and the fixed base plate are connected as a whole. The fixed base plate is configured to be connected to the fixed foundation.

10. A nuclear fusion device, characterized in that, include: Vacuum chamber and the support structure as described in any one of claims 1 to 9; The vacuum chamber has multiple lower windows arranged circumferentially, and each of the multiple lower windows is arranged opposite to one of the multiple supporting structures.

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