Supporting device for cold shield plate of star simulator, cooling shielding assembly and star simulator

Abstract

The invention discloses a supporting device for a cold shield plate of a star imitator, a cooling shield assembly and the star imitator, the supporting device comprises a supporting assembly and a cold shield plate mounting assembly which are detachably and fixedly connected, and the cold shield plate mounting assembly is fixedly connected to the cold shield plate. The supporting assembly comprises an expansion part and a supporting part, the supporting part is fixedly installed on one side of the container wall of the heat radiation container, the inner ring of the expansion part abuts against the outer wall face of the supporting part, and the outer ring of the expansion part abuts against the inner wall face of the cold shield plate installation assembly. The expansion component can abut against the supporting component and the cold shield plate mounting assembly and is in an expansion state, when the expansion component is in the expansion state, the inner ring of the expansion component deforms and abuts against the side, facing the outer wall face of the supporting component, of the inner ring, and the outer ring of the expansion component deforms and abuts against the side, facing the inner wall face of the cold shield plate mounting assembly, of the outer ring. The supporting device can stably and conveniently fix and support the cold shield plate on one side of the wall of the heat radiation container.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cooling plate, in particular to a support device for a cold screen plate of a stellarator, a cooling shield assembly and a stellarator. BACKGROUND

[0002] The cold screen plate is a component for heat insulation and cooling shielding, which can avoid heat transfer to cause equipment performance degradation or equipment operating environment to be destroyed, and is widely used in different fields such as superconducting magnet field, aerospace field, semiconductor field and the like. Taking the superconducting magnet field as an example, in some application scenarios, it is required to make the superconducting magnet run in an extreme temperature environment, and such a running environment is usually constructed in reliance on a plasma container, a dewar pot and the like heat radiation isolation type container. For example, the superconducting magnet runs in an ultra-low temperature environment to ensure stable superconducting performance, and the plasma fusion reaction needs to be carried out in an ultra-high temperature environment of the plasma container.

[0003] Further taking the plasma fusion reaction in the plasma container of the stellarator as an example, there are other working environments or components outside the plasma container, and therefore, in order to prevent high-temperature heat conduction or diffusion in the plasma container from spreading to the outside of the plasma container and affecting other components or other working environments, it is required to lay the cold screen plate outside the corresponding container wall to realize isolation of the high-temperature environment or the low-temperature environment. In the prior art, the cold screen plate is generally directly fixed outside the container wall by using rigid fasteners such as bolts and screws. Since the cold screen plate is generally in a plate structure, local stress concentration is prone to occur when the cold screen plate is fixed by using the rigid fasteners such as bolts and screws, which causes deformation or even rupture of the cold screen plate. In addition, the rigid fasteners such as bolts and screws need to be assembled by using special tools, and there are problems of low installation efficiency and large operation difficulty.

[0004] Therefore, there is an inconvenient installation problem when the cold screen plate is installed outside the container wall in the prior art. SUMMARY

[0005] The present application aims to solve the problem of inconvenient installation when the cold screen plate is installed outside the container wall in the prior art.

[0006] To solve the above technical problems, an embodiment of the present application discloses a support device for a cold screen plate of a stellarator, which is used for fixedly and spacedly supporting the cold screen plate on one side of a wall of a heat radiation container. The support device comprises a support assembly and a cold screen plate mounting assembly which are detachably fixedly connected, and the cold screen plate mounting assembly is fixedly connected to the cold screen plate.

[0007] The support assembly comprises a support component and a bulging component, the support component is fixedly installed on one side of the wall of the heat radiation container, the bulging component is sleeved on the support component, the inner ring of the bulging component abuts against the outer wall surface of the support component, and the outer ring abuts against the inner wall surface of the cold screen plate mounting assembly.

[0008] The bulging component can abut against the support component and the cold screen plate mounting assembly respectively and be in a bulging state, when the bulging component is in the bulging state, the inner ring of the bulging component deforms and abuts against the outer wall surface of the support component, and the outer ring of the bulging component deforms and abuts against the inner wall surface of the cold screen plate mounting assembly.

[0009] By adopting the technical scheme, the support device for the cold screen plate of the star simulator is provided, and the cold screen plate can be conveniently fixed and supported on one side of the wall of the heat radiation container. The support assembly is fixedly installed on one side of the wall of the heat radiation container, the cold screen plate is fixedly installed on the cold screen plate mounting assembly, and then the support assembly supports the cold screen plate mounting assembly and the cold screen plate, so that the cold screen plate is stably supported and installed on one side of the wall of the heat radiation container.

[0010] Further, the support component and the cold screen plate mounting assembly are fixedly connected by the bulging component, the support component is fixedly installed on one side of the wall of the heat radiation container, and when the bulging component is in the bulging state, the cold screen plate and the cold screen plate mounting assembly can be conveniently and stably installed on one side of the wall of the heat radiation container. Because the inner ring and the outer ring of the bulging component abut against the outer wall surface of the support component and the inner wall surface of the cold screen plate mounting assembly respectively, the bulging component provides a larger contact area, when the bulging component is in the bulging state, the inner ring and the outer ring of the bulging component deform and abut against the outer wall surface of the support component and the inner wall surface of the cold screen plate mounting assembly respectively under the larger contact area, the connection between the cold screen plate mounting assembly, the bulging component and the support component is more closely and stably through interference fit, the cold screen plate is not contacted or damaged, the cold screen plate is not easy to deform, and the connection strength and the installation stability of the cold screen plate mounting assembly and the support component are further improved.

[0011] In addition, the support device provided by the application only needs to fix and install the cold screen plate on the cold screen plate mounting assembly and fix and install the support component on one side of the wall of the heat radiation container, and then fix the cold screen plate mounting assembly and the support component by the bulging component, without using special tooling, so that the cold screen plate is more convenient and fast to install.

[0012] Preferably, the bulging component is a bulging sleeve. Further, the bulging sleeve comprises an inner ring, an outer ring and a plurality of threaded fasteners, the plurality of threaded fasteners are arranged along the circumference of the inner ring or the outer ring. The inner ring abuts against the outer wall surface of the support component, and the outer ring abuts against the inner wall surface of the cold screen plate mounting assembly.

[0013] When the threaded fasteners are locked relative to the inner ring and the outer ring, the expansion sleeve is in an expanded state, the inner ring is displaced radially to abut against the outer wall surface of the support component, and the outer ring is displaced radially to abut against the inner wall surface of the cold screen plate mounting assembly.

[0014] According to the technical scheme, the expansion component is provided as the expansion sleeve, the inner ring of the expansion sleeve abuts against the outer wall surface of the support component in use, the outer ring abuts against the inner wall surface of the cold screen plate mounting assembly, and then the plurality of threaded fasteners are sequentially tightened to be locked relative to the inner ring and the outer ring, so that the expansion sleeve is in the expanded state and is relatively fixed to the support component and the cold screen plate mounting assembly.

[0015] Further, the expansion sleeve is a detachable mechanical connecting piece, and only the bolts need to be tightened to complete the fixation and realize the interference fit during installation, and the interference fit is released by loosening the bolts during disassembly, without the need to operate the wall of the cold screen plate or the heat radiation container, and without causing damage or destruction to the mating surface of the cold screen plate, and the installation mode of the cold screen plate is simplified.

[0016] The embodiment of the present application also discloses a support device for a cold screen plate of a star simulator, and the cold screen plate mounting assembly comprises a detachably fixed and connected mounting sleeve and a cold screen plate mounting piece.

[0017] The inner ring of the mounting sleeve constitutes the inner wall surface of the cold screen plate mounting assembly and abuts against the outer ring of the expansion component, the cold screen plate mounting piece is provided with a fixing hole, the mounting sleeve is arranged in the fixing hole, the outer ring of the mounting sleeve is detachably fixed and connected with the wall surface of the fixing hole of the cold screen plate mounting piece, and the outer periphery of the cold screen plate mounting piece is provided with a cold screen plate mounting groove for mounting the cold screen plate.

[0018] According to the technical scheme, the cold screen plate mounting assembly is provided as the detachably connected mounting sleeve and the cold screen plate mounting piece, the outer periphery of the cold screen plate mounting piece is provided with the cold screen plate mounting groove for mounting the cold screen plate, the cold screen plate can be conveniently mounted in the mounting groove, and the cold screen plate mounting groove provided by the cold screen plate mounting piece can also mount a plurality of sub-plates, and can adapt to the installation and fixation of cold screen plates of different structures or different shapes.

[0019] Furthermore, when the cold screen panel is composed of multiple sub-boards, after the multiple sub-boards are installed in the cold screen panel mounting slot, the cold screen panel mounting slot provides redundant adjustment gaps, which can absorb processing errors or assembly errors. For example, if the local gaps between the multiple sub-boards of the cold screen panel are too small or too large, the cold screen panel mounting slot can provide redundant adjustment space to make the surfaces of the multiple cold screen panels flat. This avoids the multiple sub-boards being squeezed or warped due to the local gaps being too small, which would damage the cold screen panel, or the multiple sub-boards being air gaps or gaps due to the local gaps being too large. This further avoids heat loss or reduced cold screen effect caused by heat convection due to air gaps or gaps.

[0020] In the support device for a stellarator cold shield plate disclosed in the embodiments of the present invention, the outer ring of the mounting sleeve is provided with an external thread, and the wall surface of the fixing hole of the cold shield plate mounting member is provided with an internal thread. The internal thread and the external thread are adapted to each other so that the outer ring of the mounting sleeve is threadedly connected to the wall surface of the fixing hole of the cold shield plate mounting member. Furthermore, the cold shield plate mounting member can rotate relative to the mounting sleeve to adjust the distance between the cold shield plate and the wall of the thermal radiation container.

[0021] The above technical solution, which connects the outer ring of the mounting sleeve to the wall of the fixing hole of the cold shield plate mounting component with threads, has the advantages of convenient disassembly and adjustment. Furthermore, when the cold shield plate mounting component rotates relative to the mounting sleeve, the rotational motion is converted into linear motion of the cold shield plate mounting component in the length direction of the mounting sleeve through the threaded connection structure, thereby adjusting the gap between the cold shield plate and the wall of the thermal radiation container.

[0022] Especially when the cold shield panel consists of multiple sub-panels or a large number of cold shield panels, the surfaces of the multiple sub-panels or multiple cold shield panels may be uneven due to installation errors. The dimensional deviations of the multiple sub-panels or multiple cold shield panels can be adjusted by rotating and adjusting the cold shield panel mounting parts. This eliminates the errors of the multiple sub-panels or multiple cold shield panels in the vertical direction of the heat radiation container wall, ensuring that the assembly tolerances between the multiple sub-panels or multiple cold shield panels meet the assembly requirements, reducing the gaps or deviations between the multiple sub-panels or multiple cold shield panels, and making the multiple sub-panels or multiple cold shield panels form a flat and fitted whole surface, thereby improving the heat insulation effect of the cold shield panel.

[0023] The present invention also discloses a support device for a cold screen plate of a stellarator. The support component is configured as a support sleeve, which includes a first part, a second part, and a third part that are fixedly connected in sequence along its height direction. The first part is fixedly installed on one side of the wall of the thermal radiation container. The support sleeve extends from the first part to the third part toward the side away from the wall of the thermal radiation container. The third part is configured as a cylindrical structure, and the outer wall surface of the third part abuts against the inner ring of the expansion joint.

[0024] Furthermore, the support sleeve is fixedly installed on one side of the container wall by a fixing connector. The first part is provided with a through hole for the fixing connector to pass through. One end of the fixing connector is fixed to one side of the heat radiation container wall, and the other end passes through the through hole. The first part and the fixing connector are fastened together by fasteners.

[0025] The first part is set as a sleeve base, and the second part is set as an annular hollow mesh structure. The second part is made of electrical insulating material.

[0026] Using the above technical solution, the supporting component is configured as a supporting sleeve, and the first part of the supporting sleeve is configured as a sleeve base. The supporting sleeve is fixedly installed on one side of the container wall by means of fixed connectors and fasteners. The second part is configured as an annular hollow mesh structure made of electrically insulating material. The electrically insulating material also has low thermal conductivity, which can reduce the heat transfer from the wall of the thermal radiation container to the outside and prevent the heat of the thermal radiation container from the wall side to the cold shield plate through the supporting sleeve.

[0027] Furthermore, when the cold shield is made of metal, the second part made of electrical insulating material isolates the cold shield from the wall of the heat radiation container through the material characteristics. At the same time, it can also prevent strong electromagnetic forces or eddy current heating from being generated with the large metal structure. In other words, the second part made of electrical insulating material can block heat transfer and avoid electromagnetic interference.

[0028] The present invention also discloses a cooling shielding assembly, including a cold shield plate and a heat insulation layer stacked at intervals, and a support device for the cold shield plate of a stellarator as described above. The cold shield plate mounting assembly of the support device is detachably fixedly connected to the cold shield plate. The support member penetrates the heat insulation layer along its height direction. Furthermore, the heat insulation layer is disposed at intervals between the cold shield plate and the wall of the thermal radiation container along the height direction of the support member.

[0029] By adopting the above technical solution, the cold shield plate is detachably installed on the cold shield plate mounting assembly of the support device, and the heat insulation layer is spaced apart between the cold shield plate and the wall of the heat radiation container along the height direction of the support component, which can further improve the cooling and heat insulation effect of the cooling shield assembly.

[0030] Furthermore, the cooling shielding assembly also includes a first cooling pipe and a second cooling pipe. The first cooling pipe is fixedly disposed between the cold shield plate and the insulation layer, and abuts against both the cold shield plate and the insulation layer. The second cooling pipe is fixedly disposed between the insulation layer and the wall of the heat radiation container, and abuts against both the insulation layer and the wall of the heat radiation container. The cold shield plate is a metal plate, and the insulation layer is a multi-layer composite insulation material.

[0031] Using the above technical solution, a first cooling pipe is set between the cold shield plate and the heat insulation layer. The coolant in the first cooling pipe can quickly remove the heat from the cold shield plate and the heat insulation layer. A second cooling pipe is set between the heat insulation layer and the wall of the heat radiation container, which can also quickly remove the heat from the heat insulation layer and the heat radiation container. The first cooling pipe and the second cooling pipe work together with the cold shield plate and the heat insulation layer to improve the cooling and heat insulation performance of the cooling shield component.

[0032] The present invention also discloses a stellarator, which includes the cooling shielding component of any of the above, and further includes a thermal radiation container, which is the plasma container or Dewar jar of the stellarator.

[0033] Using the above technical solution, the cooling shielding component can be set on one side of the outer wall of the plasma container of the stellarator, or on one side of the inner wall of the Dewar jar, to meet the working environment of the superconducting magnet system in the stellarator.

[0034] The beneficial effects of this invention are:

[0035] This invention discloses a support device for a cold shield plate of a stellarator, a cooling shield assembly, and a stellarator. The support device for the cold shield plate can conveniently fix and support the cold shield plate on one side of the thermal radiation container of the stellarator. Further, an expansion member is provided. When the expansion member is in an expanded state, under a large area of ​​contact, the inner and outer rings of the expansion member deform and abut against the outer wall surface of the support member and the inner wall surface of the cold shield plate mounting assembly, respectively. Through interference fit, the connection between the cold shield plate mounting assembly, the expansion member, and the support member is more compact and stable, improving the connection strength and installation stability of the cold shield plate mounting assembly and the support member. Attached Figure Description

[0036] Figure 1 A cross-sectional view of a support device for a stellarator cold screen plate provided in an embodiment of the present invention;

[0037] Figure 2 This is a schematic diagram of the structure of the support device for the cold screen plate of a stellarator provided in an embodiment of the present invention;

[0038] Figure 3 This is a cross-sectional view of the expansion sleeve of the support device for the cold screen plate of a stellarator provided in an embodiment of the present invention;

[0039] Figure 4 This is a cross-sectional view of a cooling shielding assembly provided in an embodiment of the present invention.

[0040] Explanation of reference numerals in the attached figures:

[0041] 10. Supporting device;

[0042] 110. Cold shield panel mounting assembly;

[0043] 111. Installation sleeve; 112. Cold screen panel mounting component; 113. Cold screen panel mounting slot;

[0044] 120. Expansion and tightening components;

[0045] 121. Inner ring; 122. Outer ring; 123. Threaded fastener;

[0046] 130. Supporting components;

[0047] 131. Part One; 132. Part Two; 133. Part Three;

[0048] 140. Fixed connectors; 141. Fasteners;

[0049] 20. Wall of the thermal radiation container; 30. Cold shield plate; 40. Insulation layer; 50. First cooling pipe; 60. Second cooling pipe. Detailed Implementation

[0050] As mentioned in the background section, when cold shield panels are fixed to the outside of the container wall using rigid fasteners such as bolts and screws, special tools are required for assembly, resulting in low installation efficiency and high operational difficulty. Furthermore, because cold shield panels are plate-shaped structures, they are prone to deformation or even cracking due to stress concentration when fixed with rigid fasteners. Therefore, the existing technology presents the problem of inconvenient installation of cold shield panels.

[0051] Therefore, this invention discloses a support device for a cold screen plate of a stellarator. The support device includes a cold screen plate mounting assembly, an expansion member, and a support member. The cold screen plate mounting assembly is fixedly connected to the cold screen plate, and the support member is fixedly installed on one side of the wall of the thermal radiation container. The inner ring of the expansion member abuts against the outer wall surface of the support member, and the outer ring abuts against the inner wall surface of the cold screen plate mounting assembly. When the expansion member is in an expanded state, the cold screen plate mounting assembly and the support member are relatively fixedly connected, which can fix the cold screen plate mounting assembly and the cold screen plate to one side of the container wall. Through the deformation and abutment of the inner and outer rings of the expansion member, the connection strength and installation stability of the cold screen plate mounting assembly and the support member are improved, and the cold screen plate will not be contacted or damaged.

[0052] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0053] Example 1

[0054] Please see Figure 1 This embodiment discloses a support device for a cold screen plate of a stellarator. The support device 10 is used to fix and support the cold screen plate 30 at intervals to the wall 20 of the thermal radiation container (see...).Figure 4 On one side, the support device 10 includes a support component and a cold screen plate mounting component 110 that are detachably and fixedly connected, with the cold screen plate mounting component 110 fixedly connected to the cold screen plate 30.

[0055] It should be noted that the support device disclosed in this embodiment can be used to install the cooling screen in various working environments or conditions that require the installation of the cooling screen. The support component is fixedly installed on one side of the wall 20 of the thermal radiation container, and the cooling screen 30 is fixedly connected to the cooling screen mounting component 110. The cooling screen 30 can be fixedly installed on the cooling screen mounting component 110 by snap-fit, sleeve, adhesive or other means. The cooling screen mounting component 110 and the support component can be connected by various detachable connection methods such as fastener connection, expansion sleeve connection, clamp connection.

[0056] In other words, when the support device 10 provided by the present invention fixes the cold shield plate 30 to one side of the wall 20 of the thermal radiation container, it avoids direct contact between the cold shield plate 30 and the rigid connector. By setting the support assembly and the cold shield plate mounting assembly 110 for detachable connection, the cold shield plate 30 can be fixedly installed on one side of the wall 20 of the thermal radiation container.

[0057] In this embodiment, the thermal radiation container can be any container or device that requires cooling or heat preservation. For example, the thermal radiation container can be the plasma container of a stellarator, a Dewar jar for cryogenic storage, a cryogenic vacuum furnace, a boiler, etc.

[0058] Further, please see Figure 1 and Figure 4 The support assembly includes an expansion member 120 and a support member 130. The support member 130 is fixedly installed on one side of the wall 20 of the heat radiation container. The expansion member 120 is sleeved on the support member 130. The inner ring of the expansion member 120 abuts against the outer wall surface of the support member 130, and the outer ring abuts against the inner wall surface of the cold shield plate mounting assembly 110.

[0059] The expansion member 120 can be pressed against and in a compressed state relative to the support member 130 and the cold screen mounting assembly 110 respectively. When the expansion member 120 is in a compressed state, the inner ring of the expansion member 120 deforms and presses against the outer wall surface of the support member 130, and the outer ring of the expansion member 120 deforms and presses against the inner wall surface of the cold screen mounting assembly 110.

[0060] Specifically, in this embodiment, the support component 130 can be fixedly installed on one side of the wall 20 of the thermal radiation container and support the expansion component 120, the cold shield plate mounting assembly 110 and the cold shield plate 30. Therefore, the support component 130 can be configured as a support sleeve, support column, support frame and other support structures.

[0061] Furthermore, the method by which the support component 130 is fixedly installed on one side of the wall 20 of the thermal radiation container is not limited. For example, it can be fixedly installed on one side of the wall 20 of the thermal radiation container by welding, bonding, screwing, etc.

[0062] The specific structure of the expansion member 120 is not limited. For example, it can be configured as an expansion sleeve. When the expansion sleeve is in an expanded state, the inner ring 121 of the expansion sleeve will deform and expand inward, and the outer ring 122 will deform and expand outward. The expansion member 120 can also be configured as other deformable expansion structures. For example, it can be a cylindrical expansion structure made of rubber, silicone, etc., which can deform inward along the radial inner ring and outward along the outer ring. This embodiment does not specifically limit this.

[0063] Therefore, the support device for the cold screen plate of the stellarator provided by the present invention can first fix the support component 130 to one side of the wall 20 of the thermal radiation container during installation, and then fix the cold screen plate 30 on the cold screen plate mounting assembly 110. The support component 130 supports the cold screen plate mounting assembly 110 and the cold screen plate 30, which can conveniently and quickly support the cold screen plate 30 firmly on one side of the wall 20 of the thermal radiation container.

[0064] Furthermore, the support component 130 and the cold shield plate mounting assembly 110 are fixedly connected using the expansion member 120. The support component 130 is fixedly installed on one side of the wall 20 of the thermal radiation container. When the expansion member 120 is in the expansion state, the cold shield plate 30 and the cold shield plate mounting assembly 110 can be conveniently and quickly installed securely on one side of the wall 20 of the thermal radiation container. Furthermore, because the inner and outer rings of the expansion member 120 abut against the outer wall surface of the support member 130 and the inner wall surface of the cold screen plate mounting assembly 110, the expansion member 120 provides a larger contact area. When the expansion member 120 is in the expanded state, under the contact of a larger area, the inner and outer rings of the expansion member 120 deform and abut against the outer wall surface of the support member 130 and the inner wall surface of the cold screen plate mounting assembly 110, respectively. Through the interference fit, the connection between the cold screen plate mounting assembly 110, the expansion member 120 and the support member 130 becomes tighter and more stable, and the cold screen plate 30 is less prone to deformation, further improving the connection strength and installation stability of the cold screen plate mounting assembly 110 and the support member 130.

[0065] Furthermore, the support device provided by this invention allows for easy installation of the cold shield plate. Simply install the cold shield plate onto the cold shield plate mounting assembly 110 and the support component 130 onto one side of the wall of the thermal radiation container. Then, the cold shield plate mounting assembly 110 and the support component 130 are secured by the expansion member 120. No special tooling is required, making the installation of the cold shield plate more convenient and faster. Moreover, when maintenance or disassembly is required later, the cold shield plate 30 can be quickly disassembled simply by releasing the expansion member 120, without damaging the component structure. This significantly improves maintenance efficiency and extends the service life of the device.

[0066] Preferably, the tensioning component 120 is configured as a tensioning sleeve. Further, please refer to... Figure 2 and Figure 3 The expansion sleeve includes an inner ring 121, an outer ring 122, and a plurality of threaded fasteners 123, which are spaced apart circumferentially along the inner ring 121 or the outer ring 122. The inner ring 121 abuts against the outer wall surface of the support member 130, and the outer ring 122 abuts against the inner wall surface of the cold shield mounting assembly 110. When the threaded fasteners 123 are locked relative to the inner ring 121 and the outer ring 122, the expansion sleeve is in a tightened state, the inner ring 121 is displaced radially to press against the outer wall surface of the support member 130, and the outer ring 122 is displaced radially to press against the inner wall surface of the cold shield mounting assembly 110.

[0067] It should be noted that the shrink sleeve in this embodiment is an existing shrink sleeve, such as a Z2 type shrink sleeve, etc. Those skilled in the art can select one according to the actual size. The specific structure and working principle of the shrink sleeve in this embodiment will be briefly described below:

[0068] An expansion sleeve generally consists of an inner ring, an outer ring, and fastening elements. The inner ring typically adopts an open double-conical surface design to facilitate radial deformation, for example, an open double-conical inner ring. The outer ring also adopts an open conical surface structure, forming a wedge fit with the inner ring, for example, an open double-conical outer ring. The fastening elements are generally high-strength bolts or screws. The contact surface between the inner and outer rings is conical, usually a double conical surface. Radial expansion force is generated through axial displacement. During operation, axial thrust is generated by tightening the fastening elements. The axial thrust causes relative displacement between the inner and outer rings in the radial direction. The conical surface structure converts the axial movement into radial expansion or contraction. At this time, the inner and outer rings of the expansion sleeve deform and displace, thereby fixing the support component and the cold shield plate mounting assembly.

[0069] It should be noted that in this embodiment, the specific number of threaded fasteners 123 is not limited and can be used according to actual needs, such as setting 6, 8, 10 or other numbers of threaded fasteners.

[0070] With this structural design, the expansion sleeve 120 is configured as an expansion member. In use, the inner ring 121 of the expansion sleeve abuts against the outer wall of the support member 130, and the outer ring 122 abuts against the inner wall of the cold shield plate mounting assembly 110. Then, multiple threaded fasteners 123 are tightened in sequence to lock the inner ring 121 and the outer ring 122, so that the expansion sleeve is in an expanded state, which can fix the support member 130 and the cold shield plate mounting assembly 110. The expansion sleeve is simple and convenient to use. The expansion sleeve has high connection strength through expansion connection, and the use of the expansion sleeve can avoid local stress concentration and prevent the cold shield plate 30 from deforming, thereby improving the installation reliability and stability of the support member 130 and the cold shield plate mounting assembly 110.

[0071] Furthermore, the expansion sleeve is a detachable mechanical connector. During installation, simply tightening the bolts completes the fixation and achieves an interference fit. During disassembly, loosening the bolts releases the interference fit. There is no need to operate on the wall of the cold shield plate or the heat radiation container, and it will not cause damage or destruction to the surface of the cold shield plate or the mating surface, and it simplifies the installation method of the cold shield plate.

[0072] Next, the cold shield mounting assembly 110 of the support device disclosed in this embodiment will be described in more detail:

[0073] Please see Figure 1 and Figure 2 The cold screen mounting assembly 110 includes a mounting sleeve 111 and a cold screen mounting member 112 that are detachably and fixedly connected. The inner ring of the mounting sleeve 111 forms the inner wall surface of the cold screen mounting assembly 110 and abuts against the outer ring of the tightening member 120. The cold screen mounting member 112 is provided with a fixing hole, and the mounting sleeve 111 passes through the fixing hole. The outer ring of the mounting sleeve 111 is detachably and fixedly connected to the wall surface of the fixing hole of the cold screen mounting member 112. Furthermore, the outer peripheral side of the cold screen mounting member 112 is provided with a cold screen mounting groove 113 for mounting the cold screen 30.

[0074] Specifically, in this embodiment, the detachable connection method between the mounting sleeve 111 and the cold screen plate mounting component 112 is not limited, and can be, for example, threaded connection, keyed connection, snap-fit ​​connection, etc. In this embodiment, the cold screen plate mounting component 112 has a fixing hole in the middle for fixing the mounting sleeve 111, so the inner wall of the fixing hole and the outer wall of the mounting sleeve 111 can be provided with matching threaded structure, snap-fit ​​structure, connectors and other structures for detachable connection.

[0075] For more details, please see Figure 1 and Figure 2The outer periphery of the cold shield plate mounting component 112 is provided with a cold shield plate mounting groove 113 for mounting the cold shield plate 30. The cold shield plate 30 can be easily installed in the cold shield plate mounting groove 113. The cold shield plate mounting groove 113 provided by the cold shield plate mounting component 112 can also install multiple sub-plates, adapting to the installation and fixing of cold shield plates 30 with different structures or shapes. The cold shield plate mounting component 112 is used for fixed connection between two or more adjacent sub-plates. For example, two, three, four, or other numbers of cold shield plates 30 or sub-plates can be installed in the cold shield plate mounting groove 113 to meet the needs of installing cold shield plates 30 on one side of the wall 20 of an irregularly shaped heat radiation container. The fixing method of the cold shield plate 30 or multiple sub-plates in the mounting groove is not limited; for example, it can be fixed by snap-fit, fastener connection, etc.

[0076] Furthermore, when the cold screen panel 30 is composed of multiple sub-panels, after the multiple sub-panels are installed in the cold screen panel mounting groove 113, the cold screen panel mounting groove 113 provides redundant adjustment gaps, which can absorb processing errors or assembly errors. For example, if the local gaps between the multiple sub-panels of the cold screen panel 30 are too small or too large, the cold screen panel mounting groove 113 can provide redundant adjustment space, so that the surfaces of the multiple cold screen panels 30 are flat. This avoids the multiple sub-panels from being squeezed or warped due to the local gaps being too small, which would damage the cold screen panel 30. Or it avoids the air gaps or gaps between the multiple sub-panels from being too large, which would cause air sandwiching or gaps. This further avoids heat loss or reduced cold screen effect caused by heat convection due to air sandwiching or gaps.

[0077] For more details, please see Figure 1 In this embodiment, the outer ring of the mounting sleeve 111 is provided with an external thread, and the wall surface of the fixing hole of the cold shield plate mounting member 112 is provided with an internal thread. The internal thread and the external thread are adapted to each other so that the outer ring of the mounting sleeve 111 is threadedly connected to the wall surface of the fixing hole of the cold shield plate mounting member 112. Furthermore, the cold shield plate mounting member 112 can rotate relative to the mounting sleeve 111 to adjust the spacing between the cold shield plate 30 and the wall 20 of the thermal radiation container.

[0078] With this structural design, the outer ring of the mounting sleeve 111 and the wall of the fixing hole of the cold shield plate mounting component 112 are threaded together, which has the advantages of convenient disassembly and adjustment. Furthermore, when the cold shield plate mounting component 112 rotates relative to the mounting sleeve 111, the rotational motion is converted into linear motion of the cold shield plate mounting component 112 in the length direction of the mounting sleeve 111 through the threaded connection structure, thereby adjusting the spacing between the cold shield plate 30 and the wall 20 of the thermal radiation container.

[0079] In particular, when the cold shield panel 30 consists of multiple sub-panels or there are many cold shield panels 30, if the surface of the multiple sub-panels or multiple cold shield panels 30 is uneven due to dimensional deviations caused by installation errors, the dimensional deviations of the multiple sub-panels or multiple cold shield panels 30 can be adjusted by rotating and adjusting the cold shield panel mounting parts 112. This eliminates the errors of the multiple sub-panels or multiple cold shield panels 30 in the vertical direction of the wall 20 of the heat radiation container, so that the assembly tolerances between the multiple sub-panels or multiple cold shield panels 30 meet the assembly requirements, reduces the gaps or deviations between the multiple sub-panels or multiple cold shield panels, and makes the multiple sub-panels or multiple cold shield panels form a flat and fitted whole surface, thereby improving the heat insulation effect of the cold shield panel 30.

[0080] Furthermore, the support device disclosed in this application is provided with an installation sleeve 111, a cold shield plate mounting component 112, and an expansion member 120 cooperating with each other. Since the outer ring of the expansion member 120 is fixed with the inner ring of the installation sleeve 111, and the cold shield plate mounting component 112 and the installation sleeve 111 are connected by threads, through the cooperation and connection between the three, the cold shield plate 30 can be fixed by the expansion member 120, and the distance between the cold shield plate and the wall 20 of the heat radiation container can be adjusted by the spiral adjustment of the cold shield plate mounting component 112 relative to the installation sleeve 111, or the deviation of the plate surface size of multiple sub-plates or multiple cold shield plates 30 can be further adjusted, so that the cold shield plate 30 can meet the requirements of fixing and adjusting relative to the wall 20 of the heat radiation container, and no interference will occur during fixing or adjustment.

[0081] Next, the cold shield mounting assembly 110 of the support device disclosed in this embodiment will be described in more detail:

[0082] Please see Figure 1 and Figure 2 In this embodiment, the support member 130 is preferably configured as a support sleeve, which includes a first part 131, a second part 132, and a third part 133 that are fixedly connected in sequence along its height direction. The first part 131 is fixedly installed on one side of the wall 20 of the heat radiation container, and the support sleeve extends from the first part 131 to the third part 133 toward the side away from the wall 20 of the heat radiation container. The third part 133 is configured as a cylindrical structure, and the outer wall surface of the third part 133 abuts against the inner ring of the expansion member 120.

[0083] Specifically, in this embodiment, the material of the support sleeve is not limited. For example, it can be made of electrically insulating materials such as polyamide-imide, polypropylene, and polyvinyl chloride. It is preferred to use electrically insulating materials with low thermal conductivity. The materials of the first part 131, the second part 132, and the third part 133 of the support sleeve can be the same or different. For example, they can all be made of polyamide-imide or polyvinyl chloride. This embodiment does not make specific limitations on this.

[0084] For more details, see Figure 1 The third part 133 is configured as a cylindrical structure, and the outer wall surface of the third part 133 abuts against the inner ring of the expansion member 120. With such a structure, the contact area between the third part 133 and the inner ring of the expansion member 120 is large, and the cylindrical structure of the third part 133 has high support and rigidity, which can prevent it from being squeezed and deformed by the inner ring of the expansion member 120.

[0085] Furthermore, the support sleeve is fixedly installed on one side of the vessel wall via a fixing connector 140, wherein the first part 131 is provided with a through hole for the fixing connector 140 to pass through. Please refer to [link to relevant documentation]. Figure 1 and Figure 2 One end of the fixed connector 140 is used to fix it to the wall 20 of the thermal radiation container (see reference). Figure 4 One end passes through the through hole and the other end is fastened to the first part 131 and the fixed connector 140 by fastener 141.

[0086] The first part 131 is configured as a sleeve base, and the second part 132 is configured as an annular hollow mesh structure. The second part 132 is made of an electrically insulating material, preferably, the second part 132 is made of polyamide-imide material.

[0087] Specifically, in this embodiment, the fixing connector 140 can be a threaded connector such as a bolt, screw, or stud. For example, the fixing connector 140 is a bolt, and the fastener 141 is a fastening nut that is compatible with the bolt. Washers are provided on the fastening nut and the bolt to improve the connection strength and connection stability. The bottom end of the bolt can be fixed to one side of the wall 20 of the heat radiation container by welding, and the other end extends in a direction away from the wall 20 of the heat radiation container. Then, the through hole on the sleeve base of the support sleeve passes through the bolt, and then the washer is placed in first. Finally, the fastening nut and the bolt are tightened to fix the support sleeve on one side of the wall 20 of the heat radiation container.

[0088] With this structural design, the support component 130 is set as a support sleeve, and the first part 131 of the support sleeve is set as a sleeve base. The fixing connector 140 and the fastener 141 cooperate to fix the support sleeve to one side of the container wall.

[0089] Furthermore, the second part 132 is configured as a ring-shaped hollow mesh structure, which provides better heat insulation effect and performance. The second part 132 is made of an electrically insulating material, such as polyamide-imide. Because polyamide-imide has a low thermal conductivity, the second part 132 also has a good heat insulation effect, which can effectively insulate the wall 20 of the heat radiation container and prevent the heat of the heat radiation container from being transferred from one side of the wall to the cold shield plate 30 through the support sleeve.

[0090] Furthermore, when the cold shield plate 30 is made of metal, the second part 132 made of electrical insulating material isolates the cold shield plate 30 from the wall 20 of the heat radiation container through the material characteristics. At the same time, it can also prevent strong electromagnetic forces or eddy current heating from being generated with the large metal structure. In other words, the second part 132 made of electrical insulating material can both avoid electromagnetic interference and block heat transfer.

[0091] In summary, the embodiments of the present invention disclose a support device for a cold screen plate of a stellarator. The support device 10 of the cold screen plate 30 can conveniently fix and support the cold screen plate 30 on one side of the wall 20 of the thermal radiation container. Further, an expansion member 120 is provided. When the expansion member 120 is in an expanded state, under the contact of a large area, the inner and outer rings of the expansion member 120 deform and abut against the outer wall surface of the support member 130 and the inner wall surface of the cold screen plate mounting assembly 110, respectively. Through interference fit, the connection between the cold screen plate mounting assembly 110, the expansion member 120 and the support member 130 is more compact and stable, thereby improving the connection strength and installation stability of the cold screen plate mounting assembly 110 and the support member 130.

[0092] Next, the usage process of the support device disclosed in the embodiments of the present invention will be briefly described:

[0093] When fixing the cold shield plate 30 using the support device for the cold shield plate, first install the support sleeve on one side of the wall 20 of the thermal radiation container. Specifically, first weld the fixing connector 140 to one side of the wall 20 of the thermal radiation container, then fit the support sleeve onto the fixing connector 140, and tighten and fix the support sleeve using the fastener 141. Then, the expansion sleeve can be fitted onto the outer wall of the third part 133 of the support sleeve, so that the inner ring 121 of the expansion sleeve abuts against the support sleeve. The cold shield plate 30 or multiple sub-plates are installed in the cold shield plate mounting groove 113 of the cold shield plate mounting component 112, and the cold shield plate mounting component 112 is connected to the mounting sleeve 111. The mounting sleeve 111 is fitted onto the outer ring 122 of the expansion sleeve, so that the inner wall of the mounting sleeve 111 and the outer ring 122 of the expansion sleeve abut against each other. Then, the multiple threaded fasteners 123 of the expansion sleeve are tightened in sequence, so that the expansion sleeve is in a tightened state. The inner ring 121 is displaced radially to abut against the outer wall surface of the support sleeve, and the outer ring 122 is displaced radially to abut against the inner wall surface of the mounting sleeve 111. The cold shield plate 30 is fixedly installed on one side of the wall 20 of the heat radiation container. Furthermore, the cold shield plate mounting component 112 and the mounting sleeve 111 can be rotated relative to each other to adjust the dimensions of the cold shield plate mounting component 112 and the cold shield plate 30 in the vertical direction of the wall 20 of the heat radiation container. It should be noted that those skilled in the art may use other methods during actual installation. The above implementation is only one example and not the only limitation on its installation method.

[0094] Example 2

[0095] This embodiment also discloses a cooling shielding component; please refer to [link / reference]. Figure 4 The cooling shielding assembly disclosed in this invention includes a cold shield plate 30 and a heat insulation layer 40 stacked at intervals, and also includes a support device for the cold shield plate of the stellarator in Embodiment 1. The cold shield plate mounting assembly 110 of the support device 10 is detachably fixedly connected to the cold shield plate 30. The support member 130 penetrates the heat insulation layer 40 along its height direction. Furthermore, the heat insulation layer 40 is spaced apart between the cold shield plate 30 and the wall 20 of the thermal radiation container along the height direction of the support member 130.

[0096] Furthermore, when installing and fixing the cold shield plate, the support device provided in this embodiment of the invention only requires fixing the cold shield plate on the cold shield plate mounting assembly 110 and fixing the support component 130 on one side of the wall of the thermal radiation container. Then, the cold shield plate mounting assembly 110 and the support component 130 are fixed by the tightening component 120. No special tooling is required, making the installation more convenient.

[0097] Specifically, in this embodiment, the cold shield plate 30 can be assembled from multiple sub-plates, and multiple support devices 10 can be provided on one side of the wall 20 of the heat radiation container to meet the needs of fixing and installing the cold shield plate 30. The connection method between the cold shield plate 30 and the cold shield plate mounting assembly 110 is not limited, for example, it can be detachably fixed by means of snap-fit, key connection, pin connection, etc.

[0098] With this structural design, the cold shield plate 30 is detachably mounted on the cold shield plate mounting assembly 110 of the support device 10, and the heat insulation layer 40 is spaced apart between the cold shield plate 30 and the wall 20 of the heat radiation container along the height direction of the support member 130, which can further improve the cooling and heat insulation effect of the cooling shield assembly.

[0099] Further, please see Figure 4 The cooling shielding assembly also includes a first cooling pipe 50 and a second cooling pipe 60. The first cooling pipe 50 is fixedly disposed between the cold shield plate 30 and the heat insulation layer 40, and abuts against both the cold shield plate 30 and the heat insulation layer 40. The second cooling pipe 60 is fixedly disposed between the heat insulation layer 40 and the wall 20 of the heat radiation container, and abuts against both the heat insulation layer 40 and the wall 20 of the heat radiation container. The cold shield plate 30 is a metal plate, and the heat insulation layer 40 is a multi-layer composite heat insulation material. The heat insulation layer 40 can suppress the generation of heat convection.

[0100] In this embodiment, the multi-layer composite thermal insulation material is typically composed of a double-sided aluminized polyester film reflector and a polyester mesh spacer layer, employing structural designs such as "one film and one mesh" or "one film and two meshes." The reflector material is often aluminum foil or aluminized film, while the polyester mesh can be made of other low thermal conductivity fiber fabrics. The "one film and one mesh" structural design refers to the multi-layer composite thermal insulation material being constructed by stacking one layer of double-sided aluminized polyester film reflector and one layer of polyester mesh sequentially. The "one film and two meshes" structural design refers to the multi-layer composite thermal insulation material being constructed by stacking one layer of double-sided aluminized polyester film reflector and two layers of polyester mesh sequentially. The specific number of layers in the multi-layer composite thermal insulation material is designed according to actual needs. The cold shield plate 30 can be made of high thermal conductivity materials such as copper plates, but this embodiment does not specifically limit this.

[0101] With this structural design, a first cooling pipe 50 is set between the cold shield plate 30 and the heat insulation layer 40. The coolant in the first cooling pipe 50 can quickly remove the heat from the cold shield plate 30 and the heat insulation layer 40. A second cooling pipe 60 is set between the heat insulation layer 40 and the wall 20 of the heat radiation container, which can also quickly remove the heat from the heat insulation layer 40 and the heat radiation container. The first cooling pipe 50 and the second cooling pipe 60 work together with the cold shield plate 30 and the heat insulation layer 40 to improve the cooling and heat insulation performance of the cooling shield assembly.

[0102] Finally, a brief description will be given of the method by which the cooling shielding assembly disclosed in this embodiment is installed on one side of the wall 20 of the thermal radiation container:

[0103] First, the support sleeve of the support device 10 is installed on one side of the wall 20 of the thermal radiation container. Then, a second cooling pipe 60 is laid on one side of the wall 20 of the thermal radiation container. Next, the insulation layer 40 is fitted and passes through the support sleeve to abut against the second cooling pipe 60. Then, the expansion sleeve is fitted on the outer wall of the support sleeve, and a first cooling pipe 50 is laid on one side of the insulation layer 40. The cold shield plate 30 or multiple sub-plates are installed on the cold shield plate mounting assembly 110, and the cold shield plate mounting assembly 110 is fitted on the outer ring of the expansion sleeve. Then, the multiple threaded fasteners 123 of the expansion sleeve are tightened in sequence, so that the expansion sleeve is in a tightened state, and the cold shield plate 30 is fixedly installed on one side of the wall 20 of the thermal radiation container. It should also be noted that those skilled in the art can also use other methods in actual installation. The above embodiment is only one example and not the only limitation on its installation method.

[0104] Example 3

[0105] The embodiments of this example also disclose a stellarator, which includes the cooling shielding component in embodiment 2, and also includes a thermal radiation container, which can be the plasma container of the stellarator or a Dewar jar, etc.

[0106] With this structural design, the stellarator disclosed in this invention can be placed on one side of the outer wall of the plasma container or on one side of the inner wall of the Dewar jar when applied to a stellarator, in order to meet the working environment of the superconducting magnet system in the stellarator.

[0107] For example, when it is set on one side of the plasma container wall, please refer to Figure 4 The support sleeve of the support device 10 is fixedly installed on the outer wall of the plasma container. Then, the second cooling pipe 60, the heat insulation layer 40, the first cooling pipe 50, and the cold shield plate 30 are installed on the support device 10 in sequence. The heat insulation layer 40 can isolate the strong electromagnetic force and eddy current heating generated by the metal cold shield plate 30, avoid the formation of eddy current loops and aggravate heat loss. In addition, the support device 10 can also adjust the installation error of multiple cold shield plates 30 or multiple sub-plates to improve the sealing performance of the cold shield plate 30 and the heat insulation layer 40 on the outer wall of the plasma container, and enable the cold shield plate 30 to operate with low power consumption. It has the advantages of simple assembly operation and good heat insulation effect.

[0108] It should be noted that, in addition to the specific embodiments described above, those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention is presented in conjunction with preferred embodiments, this does not mean that the features of the invention are limited to these embodiments. On the contrary, the purpose of describing the invention in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of the present invention. To provide a deep understanding of the invention, many specific details are included in the above description, and the invention may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of the invention, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0109] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0110] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of the invention is usually placed in during use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0111] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0112] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0113] While the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the invention to these descriptions. Various changes in form and detail can be made by those skilled in the art, including several simple deductions or substitutions, without departing from the spirit and scope of the invention.

Claims

1. A support device for a stellarator cold screen plate, characterized in that, The support device is used to fix the cold shield plate to one side of the wall of the thermal radiation container at intervals. The support device includes a support assembly and a cold shield plate mounting assembly that are detachably and fixedly connected, and the cold shield plate mounting assembly is fixedly connected to the cold shield plate. The support assembly includes an expansion member and a support member. The support member is fixedly installed on one side of the wall of the thermal radiation container. The expansion member is sleeved on the support member. The inner ring of the expansion member abuts against the outer wall surface of the support member, and the outer ring abuts against the inner wall surface of the cold shield plate mounting assembly. The expansion member can be pressed against and in an expanded state relative to the support member and the cold screen mounting assembly respectively. When the expansion member is in the expanded state, the inner ring of the expansion member deforms and presses against the outer wall of the support member, and the outer ring of the expansion member deforms and presses against the inner wall of the cold screen mounting assembly.

2. The support device for the cold screen plate of a stellarator as described in claim 1, characterized in that, The tightening component is configured as an tightening sleeve.

3. The support device for the cold screen plate of a stellarator as described in claim 2, characterized in that, The expansion sleeve includes an inner ring, an outer ring, and a plurality of threaded fasteners, wherein the plurality of threaded fasteners are spaced apart circumferentially along the inner ring or the outer ring; wherein The inner ring abuts against the outer wall of the supporting component, and the outer ring abuts against the inner wall of the cold shield mounting assembly; and When the threaded fastener is locked relative to the inner ring and the outer ring, the expansion sleeve is in the expansion state, the inner ring is displaced radially to press against the outer wall of the support component, and the outer ring is displaced radially to press against the inner wall of the cold shield mounting assembly.

4. The support device for the cold screen plate of a stellarator as described in claim 1, characterized in that, The cold shield mounting assembly includes a mounting sleeve and a cold shield mounting component that are detachably and fixedly connected; wherein The inner ring of the mounting sleeve forms the inner wall surface of the cold screen plate mounting assembly and abuts against the outer ring of the tightening component. The cold screen plate mounting component is provided with a fixing hole, and the mounting sleeve passes through the fixing hole. The outer ring of the mounting sleeve is detachably fixedly connected to the wall surface of the fixing hole of the cold screen plate mounting component. Furthermore, the outer peripheral side of the cold screen plate mounting component is provided with a cold screen plate mounting groove for mounting the cold screen plate.

5. The support device for the cold screen plate of a stellarator as described in claim 4, characterized in that, The outer ring of the mounting sleeve is provided with an external thread, and the wall surface of the fixing hole of the cold shield plate mounting component is provided with an internal thread. The internal thread is adapted to the external thread so that the outer ring of the mounting sleeve is threadedly connected to the wall surface of the fixing hole of the cold shield plate mounting component; and The cold shield plate mounting component can rotate relative to the mounting sleeve to adjust the distance between the cold shield plate and the wall of the thermal radiation container.

6. The support device for the cold screen plate of a stellarator as described in any one of claims 1-5, characterized in that, The support component is configured as a support sleeve, which includes a first part, a second part, and a third part that are fixedly connected in sequence along its height direction. in The first part is fixedly installed on one side of the wall of the heat radiation container. The support sleeve extends from the first part to the third part toward the side away from the wall of the heat radiation container. The third part is configured as a cylindrical structure, and the outer wall surface of the third part abuts against the inner ring of the expansion member.

7. The support device for the cold screen plate of a stellarator as described in claim 6, characterized in that, The support sleeve is fixedly installed on one side of the vessel wall via a fixing connector; wherein The first part is provided with a through hole for the fixed connector to pass through. One end of the fixed connector is fixed to one side of the wall of the thermal radiation container, and the other end passes through the through hole. The first part and the fixed connector are fastened together by fasteners. The first part is configured as a sleeve base, and the second part is configured as an annular hollow mesh structure, which is made of an electrically insulating material.

8. A cooling shielding assembly, characterized in that, The device includes a cold shield plate and a heat insulation layer stacked at intervals, and also includes a support device for the cold shield plate of a stellarator as described in any one of claims 1 to 7, wherein the cold shield plate mounting assembly of the support device is detachably fixedly connected to the cold shield plate, the support member penetrates the heat insulation layer along its height direction, and the heat insulation layer is disposed at intervals between the cold shield plate and the wall of the thermal radiation container along the height direction of the support member.

9. The cooling shielding assembly as described in claim 8, characterized in that, The cooling shielding assembly further includes a first cooling pipe and a second cooling pipe; wherein The first cooling pipe is fixedly disposed between the cold shield plate and the heat insulation layer, and abuts against the cold shield plate and the heat insulation layer respectively; The second cooling pipe is fixedly disposed between the heat insulation layer and the wall of the heat radiation container, and abuts against the heat insulation layer and the wall of the heat radiation container respectively; The cold shield is made of metal, and the heat insulation layer is made of multi-layer composite heat insulation material.

10. A stellarator, characterized in that, The stellarator includes the cooling shielding assembly as described in claim 8 or 9, and further includes a thermal radiation container, which is the plasma container or Dewar jar of the stellarator.

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