Supporting device for vacuum chamber of star simulator and star simulator

Abstract

The utility model discloses a support device for a vacuum chamber of a star imitator and the star imitator, the support device comprises a lifting assembly and a rotary connecting assembly, the lifting assembly comprises a fixed part and a lifting part, the fixed part is used for being fixedly connected to a mounting surface, and the lifting part is movably arranged on the fixed part along a first direction; when the supporting device is used, the lifting assembly can adjust the overall height of the supporting device through lifting, the supporting device can adapt to supporting points at different positions of the vacuum chamber, applicability is better, assembling is facilitated, and the supporting device allows multi-degree-of-freedom deformation while vertically supporting the vacuum chamber through the arrangement of the rotating connecting assembly; therefore, deformation stress generated by the temperature gradient is released, and the influence on the use performance of the star simulator due to excessive stress concentration of the supporting device is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to star simulator technical field especially, a kind of support device and star simulator for star simulator vacuum chamber. BACKGROUND

[0002] Nuclear fusion is under extreme conditions such as ultra-high temperature and ultra-high pressure, allowing two light atomic nuclei to overcome the coulomb repulsion between each other, approach and aggregate into a heavy atomic nucleus. In the field of nuclear fusion research, star simulator, as an important magnetic confinement fusion device, has stronger steady-state operation ability, more stable plasma confinement and no need for complex current driving system, so it is considered as one of the most possible ways to realize fusion energy utilization. Its core lies in the complex magnetic field generated by three-dimensional coils to confine plasma. The vertical support structure of the star simulator vacuum chamber is mainly used to support the star simulator special-shaped vacuum chamber in the direction of gravity. The vacuum chamber is a component located inside the star simulator, usually shaped similarly to the plasma of the star simulator, with a certain degree of twist. Since the area enclosed by it directly undergoes fusion reaction, the high-temperature plasma will generate a lot of radiant heat on its surface, and the surface temperature of the vacuum chamber can reach 150-200℃. The vacuum chamber is usually fixed on the base of the main machine or the ground through the support structure, and the temperature is 20℃. The huge temperature gradient will cause the vacuum chamber to expand and deform greatly, and the traditional rigid support will generate a huge structural stress when deformed, thereby affecting the performance of the star simulator. SUMMARY

[0003] The utility model aims at solving the problem that the rigid support of the star simulator vacuum chamber in the prior art will generate a huge structural stress when deformed, affecting the performance of the star simulator.

[0004] The present application provides a kind of support device for star simulator vacuum chamber, support device is used to support vacuum chamber along the direction of gravity of vacuum chamber, and include lifting assembly and rotating connection component;Wherein, lifting assembly includes fixed component and lifting component, fixed component is used to fixedly connected on mounting surface, lifting component is movably arranged in fixed component along first direction;Wherein, when support device supports vacuum chamber, first direction is parallel to the direction of gravity of vacuum chamber, and perpendicular to mounting surface;Rotating connection component includes rotating support component and intermediate connecting component connected in turn along first direction, rotating support component extends along first direction, and one end of rotating support component is connected with lifting component, intermediate connecting component is used to fixedly connected on the outer wall surface of vacuum chamber, and intermediate connecting component is connected with the other end of rotating support component, so that rotating connection component moves along with the movement of lifting component along first direction;And, one end of rotating support component is rotatably connected with lifting component, and / or, the other end of rotating support component is rotatably connected with intermediate connecting component, so that intermediate connecting component is rotatable and swingable relative to lifting component around first direction.

[0005] With the technical scheme, the support device provided by the application can adjust the overall height of the support device through the lifting of the lifting assembly, especially for the twisted vacuum chamber, the top end of the support device can adapt to the support points at different positions of the vacuum chamber by adjusting the overall height of the support device, so that the applicability of the support device is better, and a separate support device does not need to be developed for support points of different heights, and the support force of the support device can be adjusted by adjusting the lifting assembly to meet the different support requirements of the vacuum chamber. With this structure, the lifting assembly can be lowered to a lower position that meets the connection requirements during assembly, the stress between the components is small at this time, which is beneficial to assembly, and the lifting assembly is adjusted after assembly to make the support device meet the corresponding support requirements, so that the assembly efficiency of the support device is higher.

[0006] In addition, the top end of the lifting assembly is also provided with a rotary connection assembly, the setting of the rotary connection assembly allows the support device to support the vacuum chamber vertically while allowing it to deform in multiple degrees of freedom, wherein the rigid connection of the fixed component and the mounting surface ensures the stability of the support, and the rotary connection structure provided at both ends or one end of the rotary support component allows the vacuum chamber to rotate in the first direction and oscillate radially when it expands due to heat, thereby releasing the deformation stress generated by the temperature gradient and avoiding excessive stress concentration on the support device, which affects the use performance of the star simulator.

[0007] Therefore, the support device for the vacuum chamber of the star simulator provided by the application is not only convenient to disassemble and assemble, but also can make the use performance of the star simulator more stable when in use.

[0008] According to the support device for the vacuum chamber of the star simulator provided by the application, one end of the rotary support component is ball-hinged with the lifting component, and / or the intermediate connecting component is ball-hinged with the other end of the rotary support component.

[0009] With the technical scheme, the ball-hinged connection mode can enable the rotary support component and the lifting component, and / or the intermediate connecting component and the rotary support component to move in multiple degrees of freedom, and the ball-hinged connection utilizes the spherical contact structure to enable the rotary support component to deflect or rotate at multiple angles while bearing the gravity direction load of the vacuum chamber, especially when the vacuum chamber expands non-uniformly due to the temperature gradient, the rotary support component and the lifting component, and / or the intermediate connecting component and the rotary support component can deflect or rotate at multiple angles, thereby avoiding excessive stress concentration.

[0010] According to the support device for the vacuum chamber of the star simulator provided by the application, the intermediate connecting component is a connecting seat, and the rotary support component is a support rod.

[0011] The connecting seat can make the outer wall surface of the vacuum chamber obtain a more stable fixed connection point, and the connecting seat can be adapted to the complex twisted shape of the vacuum chamber through simple structural design. The rotating support part adopts a support rod form, the rod-shaped structure extending in the first direction meets the rigid demand of transmitting the driving force of the lifting assembly, and through the axial rotatable and swing characteristics of the rod, the angle deviation between the connecting seat and the support rod is allowed when the vacuum chamber is heated and expanded, so as to release the stress caused by thermal deformation.

[0012] According to the support device for the vacuum chamber of the star simulator provided in the application, the support device further comprises an external support assembly, the external support assembly comprises a connecting shell which is open at both ends and extends in the first direction; wherein the rotating support part penetrates through the connecting shell in the first direction, and the outer wall surface of the rotating support part is spaced apart from the inner wall surface of the connecting shell at a first preset distance, the other end of the rotating support part extends out of the connecting shell and is connected with the intermediate connecting part, and the end of the connecting shell close to the lifting part is sealingly connected with the lifting part; and through the movement of the lifting part in the first direction, the intermediate connecting part can be moved relative to the connecting shell in linkage, so that the end of the intermediate connecting part away from the lifting part abuts against or separates from the external support assembly.

[0013] According to the support device for the vacuum chamber of the star simulator provided in the application, the external support assembly with the connecting shell is arranged to form a limiting structure for the rotating support part, the rotating support part penetrates through the connecting shell and keeps a gap at the first preset distance, which allows the rotating support part to move axially in the connecting shell and provides space for radial swing of the rotating support part. The connecting shell is sealingly connected with the lifting part to form a closed space, which can ensure the vacuum degree of the vacuum chamber.

[0014] According to the support device for the vacuum chamber of the star simulator provided in the application, the connecting shell is designed as a cylindrical structure, and a cylindrical elastic sealing member is arranged between the connecting shell and the lifting part; wherein one end of the cylindrical elastic sealing member is sealingly connected with the end of the connecting shell close to the lifting part, and the other end of the cylindrical elastic sealing member is sealingly connected with the lifting part.

[0015] According to the support device for the vacuum chamber of the star simulator provided in the application, the connecting shell is designed as a cylindrical structure, which can provide axial movement guidance for the rotating support part and provide a mounting base for the elastic sealing member. The two ends of the cylindrical elastic sealing member are respectively sealingly connected with the end of the connecting shell and the lifting part. When the lifting part moves in the first direction, the elastic sealing member can absorb the relative displacement between the connecting shell and the lifting part through its own deformation, so as to avoid the dislocation of the sealing interface caused by the thermal expansion of the vacuum chamber.

[0016] According to the support device for the vacuum chamber of the star simulator provided in the application, the connecting shell comprises an inner support cylinder and an outer support cylinder, and the tubular elastic sealing member comprises a bellows; the inner support cylinder is sleeved in the outer support cylinder, and the inner support cylinder is threadedly connected with the outer support cylinder; one end of the bellows is sealingly connected to the end face of the outer support cylinder, and the other end of the bellows is sealingly connected to the end of the lifting component.

[0017] By adopting the technical scheme, the connecting shell is designed to comprise the inner support cylinder and the outer support cylinder, so that the outer support cylinder can be fixed, for example, welded to the mounting surface during installation, and the inner support cylinder can provide a mounting base for the entire support device, and then the inner support cylinder is installed in the outer support cylinder, and other components are installed in subsequent steps; compared with fixing the support device as a whole, the accuracy of the fixing position is difficult to control when the support device is assembled and fixed as a whole, and the structure is used to better control the accuracy during installation of the support device. The bellows as the elastic sealing member can compensate for the displacement in the first direction through the expansion and deformation of the bellows when the lifting component moves, while maintaining the sealing performance, so as to prevent external pollutants from entering the inside of the support structure. Moreover, the two ends of the bellows are sealingly connected to the end face of the outer support cylinder and the lifting component respectively, forming a closed moving path, which allows the rotating support component to move with the lifting component, and the lateral stress generated by the swing of the vacuum chamber can be absorbed through the elastic property of the bellows, so as to reduce the mechanical wear between the structural members.

[0018] According to the support device for the vacuum chamber of the star simulator provided in the application, the outer support assembly further comprises an end flange, the end flange is fixedly arranged at one end of the connecting shell away from the lifting component, and constitutes one end of the outer support assembly away from the lifting component, the end flange is formed with an inner hole, the other end of the rotating support component passes through the inner hole, and the outer wall surface of the rotating support component and the inner wall surface of the inner hole are arranged at a second preset distance, and the second preset distance is smaller than the first preset distance.

[0019] By adopting the technical scheme, the end flange is arranged as the terminal structure of the outer support assembly, and the inner hole of the end flange and the rotating support component are arranged at a second preset distance, so that the inner hole can limit the swing of the rotating support component within a preset swing range, and the swing amplitude is avoided to be too large.

[0020] According to the support device for the vacuum chamber of the star simulator provided in the application, the outer wall surface of the outer support cylinder is fixedly provided with a reinforcing rib, and the reinforcing rib is used for fixedly connecting to the Dewar.

[0021] The outer support cylinder is used as the main part of the external support assembly, the reinforcing ribs arranged on the outer wall surface of the outer support cylinder can improve the structural rigidity of the outer support cylinder, avoid local deformation of the support device caused by thermal expansion of the vacuum chamber, and the fixed connection of the reinforcing ribs and the Dewar can disperse the load and reduce stress concentration at the connection, thereby enhancing the stability of the support device during deformation of the vacuum chamber.

[0022] According to the support device for the vacuum chamber of the star simulator provided in the application, the lifting assembly is a hydraulic cylinder, wherein the cylinder body of the hydraulic cylinder constitutes the fixed component of the lifting assembly, and the piston rod of the hydraulic cylinder constitutes the lifting component of the lifting assembly.

[0023] According to the above technical scheme, by specifically defining the lifting assembly as a hydraulic cylinder, the support device can be driven by hydraulic pressure to realize active adjustment in the vertical direction, and the operation is more convenient.

[0024] The application also provides a star simulator, which comprises a vacuum chamber in a twisted structure, a Dewar arranged outside the vacuum chamber, and a support device for the vacuum chamber of the star simulator with the above structure, the support device supports the vacuum chamber along the gravity direction of the vacuum chamber and penetrates through the Dewar, wherein the outer wall surface of the vacuum chamber is fixedly connected with a support connecting component, the intermediate connecting component is detachably fixedly connected with the support connecting component, and the fixed component of the lifting assembly is located on the outer circumferential side of the Dewar.

[0025] According to the above technical scheme, since the star simulator provided in the application adopts the support device with the above structure, the support device with the above structure not only has high assembly efficiency, but also can rotate around the first direction and swing radially to release the deformation stress caused by the temperature gradient, so that the use performance of the star simulator is more stable. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A support device for a vacuum chamber of a star simulator provided in the application is shown in the structure diagram of the vacuum chamber of the star simulator;

[0027] Figure 2 A support device for a vacuum chamber of a star simulator provided in the application is shown in the structure diagram of the support device for the vacuum chamber of the star simulator;

[0028] Figure 3 A support device for a vacuum chamber of a star simulator provided in the application is shown in the local structure diagram of the support device for the vacuum chamber of the star simulator in an initial state;

[0029] Figure 4 A support device for a vacuum chamber of a star simulator provided in the application is shown in the local structure diagram of the support device for the vacuum chamber of the star simulator in a use state.

[0030] BRIEF DESCRIPTION OF DRAWINGS

[0031] 100, vacuum chamber; 110, support connecting part;

[0032] 200, support device;

[0033] 210, lifting assembly;

[0034] 220, rotating connecting assembly; 221, rotating support part; 222, intermediate connecting part;

[0035] 230, external support assembly; 231, connecting shell; 2311, inner support cylinder; 2312, outer support cylinder; 232, end flange; 233, reinforcing rib;

[0036] 240, cylindrical elastic sealing member;

[0037] 300, Dewar. DETAILED DESCRIPTION

[0038] In the prior art, the surface temperature of the vacuum chamber of the stellarator is significantly higher than the temperature of the mounting surface of the support structure due to high-temperature plasma radiation, forming a temperature difference gradient of 150-200℃; when the traditional rigid support structure bears thermal expansion deformation, the superimposed stress of the axial elongation and the radial offset of the vacuum chamber occurs, which causes stress concentration at the support interface, thereby easily causing structural fatigue damage.

[0039] To solve the above problems, the application provides a support device for a stellarator vacuum chamber, which comprises a lifting assembly and a rotating connecting assembly, the lifting assembly can adjust the overall height of the support device by lifting, which can adapt to the support points at different positions of the vacuum chamber, not only better applicability, but also facilitating assembly, the rotating connecting assembly allows the support device to deform in multiple degrees of freedom while vertically supporting the vacuum chamber, thereby releasing the deformation stress caused by the temperature gradient and avoiding excessive stress concentration in the support device to affect the use performance of the stellarator.

[0040] To make the purpose, technical scheme and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0041] The application provides a support device for a stellarator vacuum chamber, as shown in Figure 1 and Figure 2 The support device 200 is used to support the vacuum chamber 100 along the gravity direction of the vacuum chamber 100, and comprises a lifting assembly 210 and a rotating connecting assembly 220.

[0042] Specifically, the lifting assembly 210 refers to a mechanical device capable of realizing the position adjustment in the direction of gravity, and can specifically adopt a hydraulic cylinder, an electric push rod or a lead screw mechanism. In the present application, the lifting assembly 210 includes a fixed component and a lifting component. Taking the case where the lifting assembly 210 is provided as a hydraulic cylinder, the cylinder body of the hydraulic cylinder constitutes the fixed component of the lifting assembly 210, and the piston rod of the hydraulic cylinder constitutes the lifting component of the lifting assembly 210. In this way, the support device 200 can be driven by the hydraulic cylinder to realize the active adjustment in the vertical direction, and the operation is more convenient.

[0043] When the lifting assembly 210 is specifically provided, the fixed component can be fixedly connected to the mounting surface, which can be a support table surface on the star simulator rack or the ground, and the actual demand can be determined. The lifting component is movably arranged in the first direction. When the support device 200 supports the vacuum chamber 100, the first direction is parallel to the direction of gravity of the vacuum chamber 100 and perpendicular to the mounting surface.

[0044] In use, the lifting assembly 210 can adjust the overall height of the support device 200 by lifting. Especially for the twisted vacuum chamber 100, the overall height of the support device 200 can be adjusted to make the top end of the support device 200 adapt to the support point at different positions of the vacuum chamber 100, so that the applicability of the support device 200 is better. There is no need to develop a separate support device 200 for support points of different heights, and the support force of the support device 200 can be adjusted by adjusting the lifting assembly 210 to meet the different support requirements of the vacuum chamber 100. By using this structure, during assembly, the lifting assembly 210 can be lowered to a lower position that meets the connection requirements (such as the state shown in Figure 3 At this time, the stress between the components is small, which is beneficial to assembly. After assembly is completed, the lifting assembly 210 is adjusted to make the support device 200 meet the corresponding support requirements (such as the state shown in Figure 4 In this way, the assembly efficiency of the support device 200 is higher.

[0045] The rotary connection assembly 220 can be a structure having axial bearing capacity and being capable of free rotation and swing, for example, a solid rod structure or a hollow rod structure combined with a rotary structure, such as a ball hinge structure arranged at one end or both ends of the rod structure. In the present application, the rotary connection assembly 220 includes a rotary support component 221 and an intermediate connection component 222 connected in sequence in the first direction. The rotary support component 221 extends in the first direction, and one end of the rotary support component 221 is connected with the lifting component. The intermediate connection component 222 is used for fixedly connecting to the outer wall surface of the vacuum chamber 100, and the other end of the rotary support component 221 is connected with the intermediate connection component 222, so that the rotary connection assembly 220 moves along with the lifting component in the first direction.

[0046] Further, one end of the rotating supporting component 221 is rotatably connected with the lifting component, and / or the other end of the rotating supporting component 221 is rotatably connected with the intermediate connecting component 222, so that the intermediate connecting component 222 is rotatable and swingable relative to the lifting component around the first direction.

[0047] It should be understood that in one embodiment of the present application, one end of the rotating supporting component 221 is rotatably connected with the lifting component, and the other end of the rotating supporting component 221 is fixedly connected with the intermediate connecting component 222.

[0048] In another embodiment of the present application, one end of the rotating supporting component 221 is fixedly connected with the lifting component, and the other end of the rotating supporting component 221 is rotatably connected with the intermediate connecting component 222.

[0049] In yet another embodiment of the present application, one end of the rotating supporting component 221 is rotatably connected with the lifting component, and the other end of the rotating supporting component 221 is also rotatably connected with the intermediate connecting component 222.

[0050] Through the above three embodiments, the intermediate connecting component 222 can be rotated and swung relative to the lifting assembly 210, so as to release the deformation stress of the vacuum chamber 100 caused by the temperature gradient. That is, the rotating connecting assembly 220 can be provided to allow the supporting device 200 to support the vacuum chamber 100 vertically while allowing the vacuum chamber 100 to deform in multiple degrees of freedom, wherein the rigid connection of the fixed component with the mounting surface ensures the stability of the support, and the rotating connecting structure provided at both ends or one end of the rotating supporting component 221 allows the vacuum chamber 100 to rotate around the first direction and swing radially when it is heated and expanded, so as to release the deformation stress caused by the temperature gradient and avoid excessive stress concentration of the supporting device 200, thereby affecting the use performance of the star simulator. Therefore, the supporting device for the vacuum chamber of the star simulator provided in the present application is not only convenient to disassemble and assemble, but also can make the use performance of the star simulator more stable when in use.

[0051] Further, regarding the three embodiments of the rotating support component 221, when one end of the rotating support component 221 is rotationally connected with the lifting component, specifically, one end of the rotating support component 221 can be ball-joint connected with the lifting component; when the intermediate connecting component 222 is rotationally connected with the other end of the rotating support component 221, specifically, the intermediate connecting component 222 can be ball-joint connected with the other end of the rotating support component 221. The ball-joint connection refers to a connection mode of realizing multidirectional rotation through spherical surface contact, for example, a structure with a ball socket and a ball head can be adopted, the two ends of the rotating support component 221 are provided with ball heads, and the lifting component and the intermediate connecting component 222 are formed with grooves as ball sockets, a spherical pair constraint is formed between the ball socket and the ball head, and the ball head can be uniformly coated with molybdenum disulfide to reduce wear, thereby improving the service life of the entire support device. Through the ball-joint connection mode, multidirectional motion can be realized between the rotating support component 221 and the lifting component, and between the intermediate connecting component 222 and the rotating support component 221, and the ball-joint connection utilizes the spherical surface contact structure to enable the rotating support component 221 to be multi-angle deflected or rotated while bearing the load in the gravity direction of the vacuum chamber 100, especially when the vacuum chamber 100 is non-uniformly expanded due to temperature gradient, the rotating support component 221 and the lifting component, and the intermediate connecting component 222 and the rotating support component 221 can be multi-angle deflected or rotated, thereby avoiding excessive stress concentration.

[0052] Specifically, when the vacuum chamber 100 is non-uniformly expanded due to heating, the ball-joint connection structure enables the rotating support component 221 and the lifting component to produce motion compensation in three-dimensional space. The spherical surface contact between the ball socket and the ball head allows the rotating support component 221 to rotate around the first direction while also being able to swing. Thus, the relative angle between the rotating support component 221 and the lifting component, and the intermediate connecting component 222 can be adaptively adjusted, avoiding local stress concentration caused by single direction constraint.

[0053] It should be understood that the rotating connection structure at the two ends of the rotating support component 221 is not limited to ball-joint connection, but can also be a universal joint, a joint bearing, etc.

[0054] In the rotating connection assembly 220, the structure of the intermediate connecting component 222 is not limited, for example, it can be provided as a connecting seat, a connecting table, etc., and the structure of the rotating support component 221 is not limited, for example, it can be provided as a support plate, a support rod, etc.

[0055] In an embodiment of the present application, the intermediate connecting component 222 is provided as a connecting seat, which refers to a structural member connected to the outer wall surface of the vacuum chamber 100, and can specifically be a flange plate with mounting holes. The rotating support component 221 is provided as a support rod, which refers to a rigid rod body extending along the direction of gravity, and can specifically be a hollow pipe made of stainless steel. The connecting seat can enable the outer wall surface of the vacuum chamber 100 to obtain a more stable fixed connection point, and can be adapted to the complex twisted shape of the vacuum chamber 100 through simple structural design of the connecting seat. The rotating support component 221 adopts the form of a support rod, and the rod-shaped structure extending along the first direction meets the rigidity requirement of transmitting the driving force of the lifting assembly 210, and also allows angular deviation between the connecting seat and the support rod when the vacuum chamber 100 is heated and expanded, thereby releasing the stress caused by thermal deformation.

[0056] Further, in the support device for the vacuum chamber of the star simulator provided in the present application, the support device 200 further comprises an external support assembly 230, which comprises a connecting shell 231 extending along the first direction and having both ends open. The connecting shell 231 can adopt a cylindrical metal structure, and the both ends open to allow the rotating support component 221 to penetrate through, and a gap is formed between the inner wall and the rotating support component 221.

[0057] Specifically, the rotating support component 221 penetrates through the connecting shell 231 along the first direction, and the outer wall surface of the rotating support component 221 and the inner wall surface of the connecting shell 231 are spaced apart at a first preset distance. The first preset distance refers to the gap width between the outer wall of the rotating support component 221 and the inner wall of the connecting shell 231, which can be set to 10-50 mm, for example, and the specific size is not limited. The other end of the rotating support component 221 extends out of the connecting shell 231 and is connected to the intermediate connecting component 222, and the end of the connecting shell 231 close to the lifting component is sealingly connected to the lifting component. Further, through the movement of the lifting component along the first direction, the intermediate connecting component 222 can be moved relative to the connecting shell 231, so that the end of the intermediate connecting component 222 away from the lifting component abuts or separates from the external support assembly 230. The present application forms a limiting structure for the rotating support component 221 by providing the external support assembly 230 with the connecting shell 231, and the rotating support component 221 penetrates through the connecting shell 231 and maintains a gap of the first preset distance, which allows the rotating support component 221 to move axially within the connecting shell 231 and also provides space for radial swinging. The connecting shell 231 is sealingly connected to the lifting component to form a closed space, which can ensure the vacuum degree of the vacuum chamber 100.

[0058] Further, in the support device for the vacuum chamber of the star simulator provided in the application, the connecting shell 231 can be designed as a cylindrical structure, and a cylindrical elastic sealing member 240 is arranged between the connecting shell 231 and the lifting component; one end of the cylindrical elastic sealing member 240 is sealingly connected to one end of the connecting shell 231 close to the lifting component, and the other end of the cylindrical elastic sealing member 240 is sealingly connected to the lifting component. The connecting shell 231 is designed as a cylindrical structure, which can not only provide the rotating support component 221 with axial movement guiding constraint, but also provide the elastic sealing member with a mounting base. The two ends of the cylindrical elastic sealing member 240 are sealingly connected to the end of the connecting shell 231 and the lifting component, respectively. When the lifting component moves in the first direction, the elastic sealing member can absorb the relative displacement between the connecting shell 231 and the lifting component through its own deformation, and the dislocation of the sealing interface caused by the thermal expansion of the vacuum chamber 100 can be avoided.

[0059] Further, the connecting shell 231 can be an integral structure or can be designed as a two-part structure, as shown in Figure 2 For example, the connecting shell 231 includes an inner support cylinder 2311 and an outer support cylinder 2312. The cylindrical elastic sealing member 240 refers to a ring-shaped sealing element with axial expansion and contraction deformation capability, which can be realized in the structure of a bellows or a rubber tube, for example. Taking the bellows as an example, specifically, the inner support cylinder 2311 is sleeved in the outer support cylinder 2312, and the inner support cylinder 2311 is threadedly connected with the outer support cylinder 2312. One end of the bellows is sealingly connected to the end face of the outer support cylinder 2312, and the other end of the bellows is sealingly connected to the end of the lifting component, for example, by welding or adhesive sealing.

[0060] In the application, the connecting shell 231 is designed to include the inner support cylinder 2311 and the outer support cylinder 2312. During installation, the outer support cylinder 2312 can be fixed first, for example, by welding to the mounting surface. At this time, the inner support cylinder 2311 can provide a mounting base for the entire support device 200. Then, the inner support cylinder 2311 is installed in the outer support cylinder 2312, and other components are installed in subsequent steps. Compared with fixing the support device 200 as a whole, the accuracy of the fixed position is difficult to control after the support device 200 is assembled as a whole. The application utilizes this structure to better control the accuracy during installation of the support device 200. The bellows as an elastic sealing member can compensate for the displacement in the first direction through its own expansion and contraction deformation when the lifting component moves, while maintaining the sealing performance to prevent external contaminants from entering the inside of the support structure. Moreover, the two ends of the bellows are sealingly connected to the end face of the outer support cylinder 2312 and the lifting component, respectively, forming a closed movement path, which allows the rotating support component 221 to move with the lifting component, and through the elastic properties of the bellows, the lateral stress generated by the swinging of the vacuum chamber 100 can be absorbed, thereby reducing the mechanical wear between the structural components.

[0061] Further, the external support assembly 230 can further include an end flange 232 fixedly arranged at one end of the connecting shell 231 away from the lifting component, and constituting one end of the external support assembly 230 away from the lifting component, the end flange 232 is formed with an inner hole, the other end of the rotating support component 221 passes through the inner hole, and the outer wall surface of the rotating support component 221 and the inner wall surface of the inner hole are arranged at a second preset distance, the second preset distance is smaller than the first preset distance, for example, the second preset distance can be set to 7-40mm, the present application does not make a unique requirement, and the specific setting is less than the first preset distance. The present application sets the end flange 232 as the end structure of the external support assembly 230, and the inner hole of the end flange 232 and the rotating support component 221 are spaced apart by a second preset distance, which can limit the rotating support component 221 to swing within a predetermined swing range, avoiding excessive swing amplitude.

[0062] Further, the outer wall surface of the outer support cylinder 2312 is fixedly provided with a reinforcing rib 233 for fixedly connecting to the Dewar 300. Specifically, the reinforcing rib 233 refers to a plate-shaped protruding structure arranged on the outer wall surface of the outer support cylinder 2312, which can be connected to the outer support cylinder 2312 by welding or one-piece forming, for reinforcing the support strength, improving the bending stiffness and torsional performance of the outer support cylinder 2312. The Dewar 300 refers to a cryostat covered outside the vacuum chamber 100, which is used to isolate the external environment from the thermal interference of the vacuum chamber 100, and also can be used as the installation base of the support device 200.

[0063] The present application utilizes the above structure, since the outer support cylinder 2312 is the main part of the external support assembly 230, the reinforcing rib 233 arranged on the outer wall surface thereof can improve the structural stiffness of the outer support cylinder 2312, avoid local deformation of the support device 200 caused by thermal expansion of the vacuum chamber 100, and the fixed connection of the reinforcing rib 233 and the Dewar 300 can disperse the load and reduce the stress concentration at the connection, thereby enhancing the stability of the support device 200 during the deformation of the vacuum chamber 100.

[0064] The present application also provides a stellar simulator, which comprises a vacuum chamber 100 in a twisted structure, a Dewar 300 covering the vacuum chamber 100, and a support device for the vacuum chamber of the stellar simulator as described above, the support device 200 supports the vacuum chamber 100 along the gravity direction of the vacuum chamber 100, and penetrates the Dewar 300.

[0065] Specifically, the vacuum chamber 100 in a twisted structure refers to a toroidal cavity whose geometry matches the plasma shape inside the stellarator, which can specifically adopt a segmented welded metal shell, and the twisted structure can adapt to the high-temperature plasma confinement requirement. The outer wall surface of the vacuum chamber 100 is fixedly connected with a support connecting component 110, which can be a connecting plate, a connecting column or the like, and is welded and fixed to the outer wall surface of the vacuum chamber 100. The intermediate connecting component 222 is detachably fixedly connected with the support connecting component 110, for example, can be connected through bolts, buckles or the like. The fixed component of the lifting assembly 210 is located at the outer circumferential side of the Dewar 300.

[0066] When the vacuum chamber 100 is heated and expanded, the outer wall surface transmits stress to the intermediate connecting component 222 through the support connecting component 110, and the spherical hinge structure between the intermediate connecting component 222 and the rotating support component 221 allows the vacuum chamber 100 to rotate or swing around the gravity axis, thereby releasing the thermal stress and avoiding the risk of structural failure caused by stress concentration.

[0067] Since the stellarator provided in the present application adopts the support device 200 with the above structure, the support device 200 with the above structure not only has high assembly efficiency, but also can rotate in the first direction and radially swing to release the deformation stress caused by the temperature gradient, so that the use performance of the stellarator can be more stable.

[0068] It should be noted that in addition to the specific embodiments described above, other advantages and effects of the present application can be easily understood by those skilled in the art from the content disclosed in the present application. Although the description of the present application is introduced in combination with the preferred embodiments, it does not mean that the features of the present application are limited to the implementation. 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 are included in the above description, and 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.

[0069] It should be noted that in the present application, 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 the subsequent drawings.

[0070] 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 in which the utility model product is usually placed, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0071] The terms "first", "second", and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0072] In the description of the present embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided", "connected", "connected" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or 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.

[0073] Although the utility model has been illustrated and described with reference to certain preferred embodiments thereof, it should be understood by those skilled in the art that the above is a further detailed description of the utility model in combination with specific embodiments, and cannot be considered as a limitation on the specific implementation of the utility model. Those skilled in the art can make various changes in form and details, including making a number of simple inferences or substitutions, without departing from the spirit and scope of the utility model.

Claims

1. A support device for a vacuum chamber of a stellarator, characterized in that The support device is used for supporting the vacuum chamber along the gravity direction of the vacuum chamber, and comprises: a lifting assembly, which comprises a fixed component and a lifting component, the fixed component is used for fixedly connecting to the mounting surface, and the lifting component is movably arranged in the fixed component along a first direction; wherein, when the support device supports the vacuum chamber, the first direction is parallel to the gravity direction of the vacuum chamber and perpendicular to the mounting surface; a rotating connecting assembly, which comprises a rotating support component and an intermediate connecting component connected in sequence along the first direction, the rotating support component extends along the first direction, and one end of the rotating support component is connected with the lifting component, the intermediate connecting component is used for fixedly connecting to the outer wall surface of the vacuum chamber, and the intermediate connecting component is connected with the other end of the rotating support component, so that the rotating connecting assembly moves along with the lifting component moving along the first direction; and, one end of the rotating support component is rotatably connected with the lifting component, and / or the intermediate connecting component is rotatably connected with the other end of the rotating support component, so that the intermediate connecting component is rotatable and swingable relative to the lifting component around the first direction.

2. A support device for a vacuum chamber of a star simulator as claimed in claim 1, characterized in that one end of the rotating support component is ball-hinged with the lifting component; and / or, the intermediate connecting component is ball-hinged with the other end of the rotating support component.

3. The support device for a vacuum chamber of a star simulator according to claim 1, characterized in that, the intermediate connecting component is a connecting seat, and the rotating support component is a support rod.

4. The support apparatus for a vacuum chamber of a star simulator according to claim 1, wherein The support device further comprises an external support assembly, the external support assembly comprises a connecting shell which extends along the first direction and is open at both ends; wherein, the rotating support component penetrates through the connecting shell along the first direction, and the outer wall surface of the rotating support component is spaced apart from the inner wall surface of the connecting shell at a first preset distance, the other end of the rotating support component extends out of the connecting shell and is connected with the intermediate connecting component, and one end of the connecting shell close to the lifting component is sealingly connected with the lifting component; and, through the movement of the lifting component along the first direction, the intermediate connecting component can be moved relative to the connecting shell in linkage, so that the intermediate connecting component abuts or separates from one end of the external support assembly away from the lifting component.

5. The support device for a vacuum chamber of a star simulator according to claim 4, characterized in that, The connecting shell is provided in a cylindrical structure, and a cylindrical elastic sealing member is arranged between the connecting shell and the lifting component; wherein, one end of the cylindrical elastic sealing member is sealingly connected with one end of the connecting shell close to the lifting component, and the other end of the cylindrical elastic sealing member is sealingly connected with the lifting component.

6. A support device for a vacuum chamber of a star simulator as claimed in claim 5, characterized in that The connecting shell comprises an inner support cylinder and an outer support cylinder, and the cylindrical elastic sealing member comprises a bellows; wherein, the inner support cylinder is sleeved in the outer support cylinder, and the inner support cylinder is threadedly connected with the outer support cylinder, one end of the bellows is sealingly connected to the end face of the outer support cylinder, and the other end of the bellows is sealingly connected to the end portion of the lifting component.

7. A support device for a vacuum chamber of a star simulator as claimed in claim 6, characterized in that The external support assembly further comprises an end flange fixedly arranged at one end of the connecting shell away from the lifting component and constituting one end of the external support assembly away from the lifting component, the end flange is formed with an inner hole, the other end of the rotating support component passes through the inner hole, and the outer wall surface of the rotating support component is arranged at a second preset distance away from the inner wall surface of the inner hole, the second preset distance is smaller than the first preset distance.

8. The support device for a vacuum chamber of a star simulator according to claim 6, characterized in that, The outer wall surface of the external support cylinder is fixedly provided with a reinforcing rib for fixedly connecting to the Dewar.

9. A support device for a vacuum chamber of a stellarator according to any one of claims 1 to 8, characterized in that The lifting assembly is arranged as a hydraulic cylinder; wherein, The cylinder body of the hydraulic cylinder constitutes the fixed component of the lifting assembly, and the piston rod of the hydraulic cylinder constitutes the lifting component of the lifting assembly.

10. A star simulator, characterized by The support device for the vacuum chamber of the star simulator comprises a vacuum chamber in a twisted structure, a Dewar arranged outside the vacuum chamber, and the support device for the vacuum chamber of the star simulator according to any one of claims 1-9, the support device supports the vacuum chamber along the direction of gravity of the vacuum chamber and penetrates through the Dewar; wherein, The outer wall surface of the vacuum chamber is fixedly connected with a support connecting component, the intermediate connecting component is detachably fixedly connected with the support connecting component, and the fixed component of the lifting assembly is located at the outer peripheral side of the Dewar.

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