Shielding assembly for a reactor

Abstract

Embodiments of the present application relate to shielding assemblies, in particular to a shielding assembly for a reactor. The shielding assembly comprises a first support, a second support, a plurality of shielding members, a first connecting member, a second connecting member and a plurality of limiting assemblies. The second support is located radially inward of the first support; the shielding members are configured to shield neutrons; the shielding members are movably connected to the first connecting member along an axial direction of the shielding members; the first connecting member is connected to the first support; the second connecting member is located below the first connecting member and is connected to the first support and the second support; the shielding members are movably connected to the second connecting member along an axial direction of the shielding members; and the limiting assemblies limit the first connecting member to avoid the first connecting member from shaking relative to the first support towards the second connecting member. The shielding assembly provided by the embodiments of the present application can ensure the connection strength between the first connecting member and the first support, and avoid causing safety hazards.

Description

Technical Field

[0001] Embodiments of this application relate to the field of shielding components, and more specifically to a shielding component for a reactor. Background Technology

[0002] The statements herein are provided merely as background information in connection with this application and do not necessarily constitute prior art.

[0003] During reactor operation, shielding structures need to be installed inside the reactor to reduce the radiation levels of the reactor vessel and internal components.

[0004] The shielding structure within a reactor typically comprises multiple layers of shielding components arranged axially. Each layer is relatively long. To constrain the position of each layer and improve the overall rigidity of the shielding structure, supports are usually installed on the radially inner and radially outer sides of the shielding structure. Connectors are installed at the top and bottom ends of each layer. By connecting the connectors to the supports, each layer is assembled into a complete shielding structure. Current shielding structures pose safety hazards. Summary of the Invention

[0005] A brief overview of this application is provided below to offer a basic understanding of certain aspects thereof. It should be understood that this overview is not an exhaustive summary of the application. It is not intended to identify key or essential parts of the application, nor is it intended to limit its scope. Its purpose is merely to present certain concepts in a simplified form as a prelude to the more detailed description that follows.

[0006] This application provides a shielding assembly for a reactor, the reactor including a reactor vessel and a reactor core disposed within the reactor vessel, the shielding assembly being disposed radially outside the reactor core. The shielding assembly includes a first support member, a second support member, multiple shielding members, a first connector, and a second connector. The second support member is disposed radially inside the first support member; the multiple shielding members are used to shield neutrons; the multiple shielding members are movably connected to the first connector along the axial direction of the shielding members; the second connector is disposed below the first connector and connected to the first and second support members, the multiple shielding members being movably connected to the second connector along the axial direction of the shielding members; wherein the first connector is connected to the first support member, and the second connector is connected to both the first and second support members. The shielding assembly also includes multiple limiting components configured to limit the first connector to prevent the first connector from swaying relative to the first support member in a direction approaching or moving away from the second connector.

[0007] The shielding assembly provided in the embodiments of this application limits the first connector by setting the limiting component to limit the first connector, so as to prevent the first connector from shaking relative to the first support in the direction of approaching or moving away from the second connector, thereby preventing deformation at the connection between the first connector and the first support, ensuring the connection strength between the two, and avoiding safety hazards. Attached Figure Description

[0008] Other objects and advantages of this application will become apparent from the following description of embodiments of this application with reference to the accompanying drawings, and will help to provide a comprehensive understanding of this application.

[0009] Figure 1 This is a cross-sectional schematic diagram of the shielding component provided in an embodiment of this application.

[0010] Figure 2 This is a cross-sectional schematic diagram of the shielding components of the related technology.

[0011] Figure 3 yes Figure 1 A cross-sectional schematic diagram of the shielding component of the shielding assembly is shown.

[0012] Figure 4 yes Figure 1 A top view of the shielding assembly is shown.

[0013] Figure 5 yes Figure 4 A perspective view of the shielding assembly is shown.

[0014] Explanation of reference numerals in the attached figures:

[0015] 100. Shielding components;

[0016] 10. First support member; 11. First connecting hole; 12. Second connecting hole; 13. Bolt; 20. Second support member; 21. Connecting hole; 30. Shielding member; 31. Housing; 311. First end cap; 3111. First cap body; 3112. First cap connector; 312. Second end cap; 3121. Second cap body; 3122. Second cap connector; 313. Pipe fitting; 32. Shielding material; 40. First connector; 41. Support connecting hole; 42. Connecting hole; 43. First connecting hole; 50. Second connector; 51. Support connecting hole; 52. Threaded hole; 53. Second connecting hole;

[0017] 60. Limiting component; 61. First limiting member; 611. Limiting connector; 6111. First end; 6112. Second end; 612. Limiting sleeve; 6121. Embedded section; 6122. Limiting section; 62. Second limiting member;

[0018] 1001, First mating component; 1002, Second mating component; 10021, Connecting section; 10022, Inclined section; 1003, First fastener; 1004, Second fastener;

[0019] 7011, Limiting connector; 70111, First end; 70112, Second end; 7012, Limiting sleeve; 7013, Nut;

[0020] 8011, connecting hole; 8012, connecting hole.

[0021] It should be noted that the accompanying drawings are not necessarily drawn to scale, but are shown only in a schematic manner without affecting the reader's understanding. Detailed Implementation

[0022] Exemplary embodiments of this application will be described below with reference to the accompanying drawings. For clarity and brevity, not all features of actual implementations are described in the specification. However, it should be understood that many implementation-specific decisions must be made in the development of any such actual embodiment to achieve the developer's specific goals, such as complying with constraints related to the system and business, and these constraints may vary depending on the implementation. Furthermore, it should be understood that while development work can be very complex and time-consuming, such development work is merely a routine task for those skilled in the art who benefit from the content of this application.

[0023] It should also be noted that, in order to avoid obscuring this application with unnecessary details, only the equipment structure and / or processing steps closely related to the solution according to this application are shown in the accompanying drawings, while other details that are not closely related to this application are omitted.

[0024] In related technologies, the two ends of the shielding component are fixedly connected to two connectors. The inventors of this application have discovered that this causes significant stress on the shielding component, leading to damage. To avoid causing excessive stress on the shielding component, the shielding component can be axially movable and connected to the first and second connectors.

[0025] In related technologies, in order to make way for the in-core components, the support member located on the radially inner side needs to be set lower than the support member located on the radially outer side. This setting means that a connector of the shielding structure can only be connected to one support member and cannot be connected to two support members at the same time. Since the shielding member is axially movable and connected to two connectors, the radially inner side of the connector that is only connected to one support member is suspended.

[0026] Since the connector and the support are usually connected by fasteners, when the reactor experiences strong shaking, the radially inner side of the connector will shake, causing the fasteners connecting the connector and the support to deform, thereby reducing the connection strength between the two and creating a safety hazard.

[0027] To solve the above problem, see Figure 1 This application provides a shielding assembly 100 for a reactor. The reactor may include a reactor vessel and a reactor core disposed within the reactor vessel. The shielding assembly 100 is disposed radially outside the reactor core. The shielding assembly 100 may include a first support member 10, a second support member 20, a plurality of shielding members 30, a first connector 40, and a second connector 50. The second support member 20 is disposed radially inside the first support member 10; the plurality of shielding members 30 are used to shield neutrons; the plurality of shielding members 30 are movably connected to the first connector 40 along the axial direction of the shielding members 30; the second connector 50 is disposed below the first connector 40 and connected to the first support member 10 and the second support member 20, and the plurality of shielding members 30 are movably connected to the second connector 50 along the axial direction of the shielding members 30; wherein, the first connector 40 is connected to the first support member 10, and the second connector 50 is connected to the first support member 10 and the second support member 20. The shielding assembly 100 may also include a plurality of limiting assemblies 60, which are configured to limit the first connector 40 to prevent the first connector 40 from swaying relative to the first support 10 in a direction toward or away from the second connector 50.

[0028] In the embodiments of this application, since the shielding member 30 is movably connected to the first connecting member 40 and the second connecting member 50 along the axial direction of the shielding member 30, stress on the shielding member 30 can be avoided. In the embodiments of this application, by setting the limiting component 60 to limit the first connecting member 40, the first connecting member 40 can be prevented from swaying relative to the first support member 10 in a direction closer to or further away from the second connecting member 50. This prevents deformation at the connection between the first connecting member 40 and the first support member 10, ensuring the connection strength between them and avoiding safety hazards.

[0029] In some embodiments, the first connector 40 can be a circular steel plate with a thickness of 50-60 mm and a ring width of 2 m, weighing tens of tons or more. For such a heavy first connector 40, when suspended radially inward, vibration may cause it to collide with the shielding member 30, resulting in severe damage to the shielding member 30. The embodiments of this application, by providing a limiting component 60, can prevent the first connector 40 from swaying relative to the first support member 10 in a direction closer to or further away from the second connector 50, thereby avoiding serious damage to the shielding member 30.

[0030] In some embodiments, the plurality of shielding elements 30 may form multiple rings of shielding elements, each ring consisting of a ring of shielding elements 30. It is readily understood that when the installation position of the shielding assembly 100 interferes with the reactor in-core components, the shielding assembly 100 needs to make way for the in-core components. Therefore, in some embodiments, the first connector 40 and the second connector 50 are configured as annular rings with openings. Accordingly, the plurality of shielding elements 30 generally form annular rings with openings. Of course, when the installation position of the shielding assembly 100 does not interfere with the reactor in-core components, the first connector 40 and the second connector 50 may be configured as closed annular rings.

[0031] See Figure 1 In some embodiments, the first connector 40 can be connected to the first support member 10 via a threaded fastener. In some embodiments, the first connector 40 is provided with a support connection hole 41, and correspondingly, the first support member 10 is provided with a first connection hole 11; wherein both the support connection hole 41 and the first connection hole 11 are threaded holes. The first connector 40 and the first support member 10 are connected by bolts 13 engaging with the threaded connections of the support connection hole 41 and the first connection hole 11.

[0032] In some embodiments, the second connector 50 can also be connected to the first support member 10 via threaded fasteners. In some embodiments, the second connector 50 is provided with a support connection hole 51, and correspondingly, the first support member 10 is provided with a second connection hole 12; wherein, both the support connection hole 51 and the second connection hole 12 are threaded holes. The second connector 50 is connected to the first support member 10 by bolts engaging with the threads of the support connection hole 51 and the second connection hole 12.

[0033] See Figure 1 In some embodiments, the second connector 50 can also be connected to the second support member 20 via a threaded connection. In some embodiments, the second connector 50 is provided with a support connection hole, and correspondingly, the second support member 20 is provided with a connection hole 21, which can be a threaded hole. The second connector 50 and the second support member 20 are connected by bolts that engage with the threaded connection of the support connection hole 51 and the connection hole 21.

[0034] See Figure 1 In some embodiments, support connection holes 41 are formed on the radially outer side of the first connector 40 and are spaced apart circumferentially. In some embodiments, support connection holes 51 for connecting with the first support member 10 are formed on the radially outer side of the second connector 50 and are spaced apart circumferentially; support connection holes 51 for connecting with the second support member 20 are formed on the radially inner side of the second connector 50 and are spaced apart circumferentially.

[0035] In some embodiments, both the first support member 10 and the second support member 20 can be cylindrical components. In some embodiments, the reactor can be a sodium-cooled fast reactor.

[0036] See Figure 1 In some embodiments, the limiting component 60 may include a first limiting member 61, which is connected to the first connecting member 40 and the second connecting member 50 to prevent the first connecting member 40 from moving away from the second connecting member 50, thereby preventing the bolt 13 connecting the first connecting member 40 and the first support member 10 from deforming.

[0037] See Figure 1 In some embodiments, the first limiting member 61 may include a limiting connector 611. The limiting connector 611 includes a first end 6111 facing the second connector 50 and a second end 6112 facing the first connector 40.

[0038] The first end 6111 of the limiting connector 611 is threaded. The second connector 50 is provided with a threaded hole 52. The limiting connector 611 is connected to the second connector 50 through the threaded engagement of the first end 6111 and the threaded hole 52.

[0039] See Figure 2 In related technologies, the second connector 50 is provided with a connecting hole 8012. The limiting connector 7011 has a threaded connection to the first end 70111 of the second connector 50. The limiting assembly also includes a limiting sleeve 7012, which is threadedly connected to the first end 70111. The limiting sleeve 7012 is disposed in the connecting hole 8012 and is configured to restrict the movement of the limiting connector 7011 toward the first connector 40. This configuration means that when assembling the shielding assembly 100, before installing the second connector 50, the first support 10, the second support 20, and the various shielding components located below the second connector 50 (for ease of distinction, the shielding component 30 located between the second connector 50 and the first connector 40 can be called the first shielding component, and the shielding component located below the second connector 50 can be called the second shielding component), the assembly of the limiting connector 7011 and the limiting sleeve 7012 must be pre-placed on the second connector. Below the corresponding position of the connecting hole 8012 of the second connector 50; after the second connector 50, the first support 10, the second support 20, and the various second shielding components located below the second connector 50 are installed, the assembly of the limiting connector 7011 and the limiting sleeve 7012 is pulled out from above the second connector 50 through the connecting hole 8012 using an auxiliary lifting tool. Then, the limiting sleeve 7012 is welded to the second connector 50 to prevent loosening. After that, the first shielding component 30 and the first connector 40 are installed. Because the length of the limiting connector 7011 is close to 5000mm, the above installation operation is very laborious.

[0040] See Figure 1 In the embodiments of this application, since the limiting connector 611 and the second connector 50 are connected by a threaded engagement between the first end 6111 and the threaded hole 52, during the assembly of the shielding assembly 100, after the first connector 40, the second connector 50, the first support 10, the second support 20, and all layers of shielding components have been installed, the limiting connector 611 can be lowered from the connecting hole 42 of the first connector 40 until its first end 6111 enters the threaded hole 52 and is tightened, thus completing the assembly of the limiting connector 611 and the second connector 50, which is very convenient for installation. No anti-loosening welding is required between the limiting connector 611 and the second connector 50.

[0041] See Figure 1 In some embodiments, the first connector 40 is provided with a connecting hole 42. The limiting connector 611 is threaded to the second end 6112 facing the first connector 40. In some embodiments, the limiting assembly 60 may further include a limiting sleeve 612, which is threadedly connected to the second end 6112. The limiting sleeve 612 is configured to restrict the movement of the limiting connector 611 toward the second connector 50 by engaging with the connecting hole 42 of the first connector 40, thereby preventing deformation of the bolt 13 connecting the first connector 40 and the first support member 10.

[0042] See Figure 2 In the related technology, the first connector 40 is formed with a connecting hole 8011, and the limiting connector 7011 is threaded to the second end 70112 facing the first connector 40. The second end 70112 of the limiting connector 7011 passes through the connecting hole 8011 and is threadedly connected to the nut 7013 located above the first connector 40 to prevent the first connector 40 from moving away from the second connector 50.

[0043] In such related technologies, due to the large self-weight of the first connector 40 (as mentioned above, the self-weight of the first connector 40 is tens of tons or more), the radially inner end of the first connector 40 will sink due to its own weight. Therefore, the first connector 40 and the limiting connector 7011 are limited by the nut 7013. During stacking operation, the first connector 40 is subjected to large stress due to thermal expansion, which causes safety hazards.

[0044] In the embodiments of this application, the limiting connector 611 is configured to be threadedly connected to the limiting sleeve 612, and the limiting sleeve 612 is used to limit the movement by cooperating with the connecting hole 8011. During stacking operation, the first connector 40 will not be subjected to large stress.

[0045] When assembling the shielding component 100, after the assembly of the limiting connector 611 and the second connector 50 is completed, the limiting sleeve 612 is inserted into the limiting connector 611, and the limiting sleeve 612 is rotated until it is in a limiting fit with the connecting hole 8011. The limiting sleeve 612 is then anti-loosened and welded to the first connector 40.

[0046] Furthermore, due to the nearly 5000mm length of the limiting connector, its overall flexibility is relatively high, and it will oscillate under vibration loads, which may originate from earthquakes or other vibration-inducing conditions. In related technologies, a nut 7013 is used above the first connector 40 to pre-tighten the first connector 40 and the limiting connector 7011, achieving a limiting effect. When the pre-tightening force of the nut 7013 is large, the friction between the nut 7013 and the first connector 40 can withstand horizontal vibration loads, but this will cause the first connector 40 to bear significant bending stress, with large local stresses, preventing the overall structural deformation coordination load from being released. When the pre-tightening force of the nut 7013 is small, the friction between the nut 7013 and the first connector 40 cannot resist horizontal vibrations, and the thread of the second end 70112 may collide with the inner wall of the connecting hole 8011, causing damage to the thread of the second end 70112 located above the connecting hole 8011, affecting the overall structural load-bearing stability.

[0047] In the embodiments of this application, the structure that collides with the first connector 40 at the connection hole 42 under vibration is changed from the thread of the second end 6112 to the outer wall of the limiting sleeve 612, which can effectively protect the thread of the second end 6112, thereby helping to ensure the load-bearing stability of the overall structure; and there is almost no compressive load between the limiting sleeve 612 and the first connector 40, so the two can withstand a certain deformation coordination load, avoid local stress concentration, and thus enhance the stability of the overall structure of the shielding assembly 100.

[0048] In some embodiments, the limiting sleeve 612 includes an insert section 6121 and a limiting section 6122 along the axial direction. The outer diameter of the insert section 6121 is smaller than the inner diameter of the connecting hole 42 so that the insert section 6121 can be inserted into the connecting hole 42. The outer diameter of the limiting section 6122 is larger than the inner diameter of the connecting hole 42. The limiting section 6122 is located above the first connector 40 to restrict the movement of the limiting connector 611 toward the second connector 50.

[0049] In some embodiments, the threads at both ends of the limiting connector 611 may be M48 coarse threads.

[0050] See Figure 1In some embodiments, the limiting component 60 may further include at least one second limiting member 62, each second limiting member 62 being disposed between the shield 30 and the first connecting member 40, for preventing the first connecting member 40 from moving toward the second connecting member 50.

[0051] When the reactor experiences severe shaking, the first connector 40 may move toward the second connector 50. During this process, the first connector 40 may collide with the shield 30, causing damage to the shield 30. In embodiments of this application, by providing a second limiting member 62 between the shield 30 and the first connector 40, the movement of the first connector 40 toward the second connector 50 can be prevented, thereby preventing the first connector 40 from colliding with the shield 30.

[0052] See Figure 1 , Figure 4 and Figure 5 In some embodiments, the second limiting member 62 may be disposed between the shield 30 and the first connecting member 40 adjacent to the first limiting member 61. In such embodiments, by providing the second limiting member 62 at the shield 30 adjacent to the first limiting member 61, it is beneficial to share the load of the first limiting member 61. In some embodiments, two to three second limiting members 62 may be provided near each first limiting member 61.

[0053] In some embodiments, the limiting sleeve 612 is welded to the first connecting member 40 to prevent the limiting sleeve 612 from becoming loose. In such embodiments, welding can prevent the limiting sleeve 612 from becoming loose, thereby ensuring a stable connection between the limiting sleeve 612 and the first connecting member 40.

[0054] See Figure 5 In some embodiments, multiple limiting components 60 are connected to the first connector 40 and the second connector 50 radially inside the multiple shields 30, and the multiple limiting components 60 are arranged circumferentially spaced. In such embodiments, it is possible to better prevent the first connector 40 from swaying relative to the first support 10 in a direction closer to or away from the second connector 50.

[0055] In some embodiments, 12 to 24 limiting components 60 may be arranged at circumferential intervals.

[0056] See Figure 1 and Figure 3In some embodiments, the shielding member 30 may include a housing 31 and a shielding material 32 disposed within the housing 31. The housing 31 may include a tube 313 and a first end cap 311 and a second end cap 312 disposed at both ends of the tube 313 to seal the tube 313. The first end cap 311 includes a first cap body 3111 and a first cap connector 3112 disposed on the first cap body 3111; the second end cap 312 includes a second cap body 3121 and a second cap connector 3122 disposed on the second cap body 3121.

[0057] In some embodiments, the first connector 40 has a first connecting hole 43 that mates with the first cover connector 3112, and the first cover connector 3112 is movably disposed in the first connecting hole 43 along the axial direction. In some embodiments, the second connector 50 has a second connecting hole 53 that mates with the second cover connector 3122, and the second cover connector 3122 is movably disposed in the second connecting hole 53 along the axial direction. In some embodiments, the second limiting member 62 is an annular member disposed radially outward of the first cover connector 3112, and the annular member abuts against the first cover body 3111 and the first connector 40. In such embodiments, it is advantageous for the second limiting member 62 to prevent the first connector 40 from moving toward the second connector 50.

[0058] In some embodiments, the first cover connector 3112 may be a first protrusion extending from the first cover body 3111 in a direction away from the tube 313. In some embodiments, the second cover connector 3122 may be a first groove extending from the second cover body 3121 in a direction away from the tube 313, the size of the first groove being the same as the size of the first protrusion, so that the second cover connector 3122 can be inserted and engaged with the first cover connector 3112 of the lower shielding member to achieve the layered assembly of the plurality of shielding members 30.

[0059] In some embodiments, the shielding assembly 100 may include a plurality of second shielding members and a third connector. The upper end of each second shielding member is connected to the second connector 50, and the lower end of each second shielding member is connected to the third connector. The third connector is connected to both the first support member 10 and the second support member 20. The structure of the second shielding member is the same as that of the shielding member 30.

[0060] See Figure 1In some embodiments, the size of the first connecting hole 43 is larger than the size of the first cover connector 3112; the shielding assembly 100 may further include a first mating member 1001 and a first fastener 1003. The outer diameter of the first mating member 1001 is the same as that of the first connecting hole 43, and the inner diameter of the first mating member 1001 is substantially the same as that of the outer diameter of the first cover connector 3112. The first mating member 1001 is sleeved on the first cover connector 3112 and is integrally embedded in the first connecting hole 43 with the first cover connector 3112. The first cover connector 3112 and the first mating member 1001 are connected by the first fastener 1003. By providing the first mating member 1001, the first connector 40 and the shielding member 30 can be prevented from abutting axially.

[0061] See Figure 1 In some embodiments, the size of the second connecting hole 53 is larger than the size of the second cover connector 3122. The shielding assembly 100 may also include a second mating member 1002 and a second fastener 1004. The second mating member 1002 is substantially the same size as the second cover connector 3122, and is disposed within the groove of the second cover connector 3122. The second mating member 1002 and the first cover connector 3112 of the second shielding member are connected by the second fastener 1004. By providing the second mating member 1002, axial contact between the second connector 50 and the shielding member 30 can be avoided, as can axial contact between the two shielding members.

[0062] In some embodiments, the fitting 313 may be a steel pipe. In some embodiments, the shielding material 32 may be boron-containing graphite or stainless steel, wherein the main function of stainless steel is to reflect neutrons, and the function of boron-containing graphite is to moderate neutrons.

[0063] In some embodiments, both the first connector 40 and the second connector 50 are annular plates.

[0064] In some embodiments, the assembled size of the limiting connector 611 and the limiting sleeve 612 is smaller than the size of the first cover body 3111 of the shield 30. In some embodiments, the size of the second limiting member 62 may be the same as the size of the first cover body 3111 of the shield 30.

[0065] Regarding the embodiments of this application, it should also be noted that, without conflict, the embodiments of this application and the features in the embodiments can be combined with each other to obtain new embodiments.

[0066] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. The scope of protection of this application shall be determined by the scope of the claims.

Claims

1. A shielding assembly for a reactor, the reactor comprising a reactor vessel and a reactor core disposed within the reactor vessel, the shielding assembly being disposed radially outside the reactor core, characterized in that, The shielding component includes: A first support member and a second support member disposed radially inside the first support member; Multiple shielding components are used to shield neutrons; A first connector, wherein the plurality of shielding members are movably connected to the first connector along the axial direction of the shielding members; The second connector is disposed below the first connector and is connected to the first support and the second support. The plurality of shielding members are movably connected to the second connector along the axial direction of the shielding members. Wherein, the first connecting member is connected to the first supporting member, and the second connecting member is connected to both the first supporting member and the second supporting member; The shielding assembly further includes: a plurality of limiting components, the limiting components being configured to limit the first connector to prevent the first connector from swaying relative to the first support in a direction toward or away from the second connector.

2. The shielding assembly according to claim 1, characterized in that, The limiting component includes: A first limiting member is connected to the first connecting member and the second connecting member to prevent the first connecting member from moving away from the second connecting member.

3. The shielding assembly according to claim 2, characterized in that, The first limiting member includes: A limiting connector, wherein the first end of the limiting connector facing the second connector is threaded; The second connector is provided with a threaded hole, and the limiting connector is connected to the second connector through the threaded engagement of the first end and the threaded hole.

4. The shielding assembly according to claim 3, characterized in that, The first connector is provided with a connection hole; The limiting connector has a thread at its second end facing the first connector; The limiting component also includes: A limiting sleeve is threadedly connected to the second end. The limiting sleeve is configured to restrict the movement of the limiting connector toward the second connector by engaging with the connecting hole of the first connector.

5. The shielding assembly according to claim 4, characterized in that, The limiting sleeve includes an insert section and a limiting section along the axial direction. The outer diameter of the insert section is smaller than the inner diameter of the connecting hole so that the insert section can be inserted into the connecting hole. The outer diameter of the limiting section is larger than the inner diameter of the connecting hole. The limiting section is located above the first connecting member to restrict the limiting connecting member from moving towards the second connecting member.

6. The shielding assembly according to claim 2, characterized in that, The limiting component further includes at least one second limiting member, each second limiting member being disposed between the shield and the first connecting member, for preventing the first connecting member from moving toward the second connecting member.

7. The shielding assembly according to claim 6, characterized in that, The second limiting member is disposed between the shielding member and the first connecting member adjacent to the first limiting member.

8. The shielding assembly according to claim 6, characterized in that, The shielding component includes: a housing and a shielding material disposed within the housing; The housing includes: a tube and a first end cap and a second end cap disposed at both ends of the tube to seal the tube; The first end cap includes a first cap body and a first cap connector disposed on the first cap body; The second end cap includes a second cap body and a second cap connector disposed on the second cap body; The first connector is provided with a first connecting hole that mates with the first cover connector, and the first cover connector is movably disposed in the first connecting hole along the axial direction; The second connector is provided with a second connecting hole that mates with the second cover connector, and the second cover connector is movably disposed in the second connecting hole along the axial direction; The second limiting member is an annular member disposed radially outside the first cover connector, and the annular member abuts against the first cover body and the first connector.

9. The shielding assembly according to claim 4, characterized in that, The limiting sleeve is welded to the first connecting member to prevent the limiting sleeve from loosening.

10. The shielding assembly according to claim 1, characterized in that, The plurality of limiting components are connected to the first connector and the second connector on the radially inner side of the plurality of shielding components, and the plurality of limiting components are arranged at intervals along the circumferential direction.

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