Design method and device of biological shielding wall of fusion device and electronic equipment

Abstract

The invention provides a design method and device for a biological shielding wall of a fusion device and electronic equipment. The design method of the biological shielding wall of the fusion device comprises the steps that a biological shielding occupying model is segmented in the height direction to obtain a plurality of biological shielding occupying modules, and the biological shielding occupying modules at least comprise top shielding modules used for arranging embedded parts; the bottom shielding module is used for arranging the bottom of the Tokamak Dewar base and an annular support; based on the performance indexes of the biological shielding wall, performing structural design on each biological shielding occupation module to obtain a biological shielding engineering module; and dividing each biological shielding engineering module in the circumferential direction to obtain a plurality of prefabricated sub-modules, and obtaining the biological shielding wall formed by splicing the plurality of prefabricated sub-modules. According to the method, on-site high-altitude, high-strength and long-time complex operation is reduced, the construction safety risk is reduced, and modular removal of the biological shielding wall and waste treatment are more efficient.

Description

Technical Field

[0001] This invention relates to the field of fusion device technology, and in particular to a design method, device, and electronic equipment for a biological shielding wall of a fusion device. Background Technology

[0002] The biological shielding wall of a fusion device mainly refers to the building structure arranged around the tokamak device to support the tokamak device, provide through holes and supports for the tokamak device window components, and provide top circumferential support for the assembly of the tokamak device. It is used to absorb and weaken the neutrons and gamma rays produced by the fusion reaction, reduce the radiation level outside the fusion device to below the legal safety limit, and protect personnel and the environment from the hazards of ionizing radiation.

[0003] The bio-shield walls of fusion devices in related technologies have significant limitations in terms of construction methods, economic efficiency of operation and maintenance throughout their entire life cycle, and inherent safety. They involve numerous complex on-site operations at high altitudes, with high intensity and prolonged durations, posing certain construction safety risks. Furthermore, maintaining and dismantling the bio-shield wall as a single unit is inconvenient during the operation and maintenance phase and at the end of its lifespan. Summary of the Invention

[0004] This invention provides a design method, apparatus, and electronic equipment for a biological shielding wall of a fusion device, which solves the technical problems of unsafe construction, inconvenient maintenance, and dismantling of biological shielding in fusion devices in the prior art.

[0005] This invention provides a method for designing a biological shielding wall for a fusion device, comprising: The biological shielding occupant model is divided along the height direction to obtain multiple biological shielding occupant modules. The biological shielding occupant module includes at least a top shielding module for setting the embedded parts and a bottom shielding module for setting the bottom and circumferential support of the tokamak dewar base. Based on the performance indicators of the biological shielding wall, the structure of each of the biological shielding occupant modules is designed to obtain the biological shielding engineering module. The biological shielding engineering modules are divided along the circumference to obtain multiple prefabricated sub-modules, and a biological shielding wall is obtained by assembling the multiple prefabricated sub-modules.

[0006] According to the design method of the biological shielding wall of a fusion device provided by the present invention, the biological shielding occupant model is divided along the height direction to obtain multiple biological shielding occupant modules, including: Based on the established tokamak model, tokamak support model, and biological shielding occupancy model, the biological shielding occupancy model is divided along the height direction to obtain two middle shielding modules. The top shielding module and the two middle shielding modules are provided with through holes to correspond to and connect with the upper window, middle window, and lower window on the tokamak model, respectively. The bottom shielding module is provided with through holes to correspond to the bottom power feeder installation position and serve as a power feeder installation channel.

[0007] According to the present invention, a design method for a biological shielding wall of a fusion device is provided, wherein, based on the performance indicators of the biological shielding wall, structural designs are performed on each of the biological shielding occupant modules to obtain a biological shielding engineering module, including: Based on the different forces and different distributions of embedded parts of each of the biological shielding occupant modules, biological shielding engineering modules with different wall frames or different filling materials are obtained.

[0008] According to the design method of a biological shielding wall for a fusion device provided by the present invention, the wall frame includes an inner wall panel, an outer wall panel and an end plate, and the wall frame also includes at least one of an internal reinforcing plate, a horizontal reinforcing rib, a vertical reinforcing rib, a shear anchor nail and an oblique reinforcing rib; And / or, The composition of the wall frame meets the following requirements: cobalt weight percentage <0.2%, niobium weight percentage <0.05%, and relative magnetic permeability not greater than 1.5; The filling material is radiation-resistant concrete, which meets the following requirements: neutron shielding efficiency greater than 90%, slump between 180mm and 220mm, strength not lower than C40, and curing period not greater than 14 days.

[0009] According to the present invention, a design method for a bio-shielding wall of a fusion device is provided, wherein bio-shielding engineering modules with different wall frames or different filling materials are obtained based on the different stresses on each of the bio-shielding occupant modules and the different distribution of pre-embedded parts, including: Finite element analysis software was used to perform topology analysis and structural optimization of the wall frame, verify the mix proportion of the neutron shielding efficiency of the radiation-resistant concrete, and verify the influence of the biological shielding engineering module on the magnetic field configuration of the tokamak device, so as to obtain a biological shielding engineering module with parameters reaching the preset values.

[0010] According to the present invention, a design method for a biological shielding wall of a fusion device is provided, wherein finite element analysis software is used to perform topological analysis and structural optimization of the wall frame, the mix proportion verification of the neutron shielding efficiency of the radiation-resistant concrete is performed, and the influence of the biological shielding engineering module on the magnetic field configuration of the tokamak device is verified, so as to obtain a biological shielding engineering module with parameters reaching preset values, including: Obtain the initial engineering module, simplify the model, select calculation equations and processing methods, and define material properties; Boundary conditions are added, including loads and constraints under extreme conditions. The mixture is then meshed and calculated. Based on the calculation results, topology analysis and structural optimization are performed on the wall frame. Boundary conditions and source terms are added, meshed, and calculated. Based on the calculation results, the mix proportion verification of the neutron shielding rate of the radiation-resistant concrete is conducted. Boundary conditions and physical fields are added, meshed, and calculated. Based on the calculation results, the influence of the biological shielding engineering module structure on the magnetic field configuration of the tokamak device is verified.

[0011] According to the design method of a bio-shield wall for a fusion device provided by the present invention, the step of dividing each of the bio-shield engineering modules along the circumference to obtain multiple prefabricated sub-modules, and obtaining a bio-shield wall assembled from the multiple prefabricated sub-modules, includes: The bio-shielding engineering modules are divided according to processing and transportation conditions.

[0012] According to the design method of a bio-shield wall for a fusion device provided by the present invention, the step of dividing each of the bio-shield engineering modules along the circumference to obtain multiple prefabricated sub-modules, and obtaining a bio-shield wall assembled from the multiple prefabricated sub-modules, includes: Each of the biological shielding engineering modules is divided into multiple prefabricated sub-modules, and the weld seams of the prefabricated sub-modules of adjacent biological shielding engineering modules are staggered.

[0013] The present invention also provides a design device for a biological shielding wall of a fusion device, comprising: A segmentation module is used to segment the biological shielding occupant model along the height direction to obtain multiple biological shielding occupant modules. The biological shielding occupant modules include at least a top shielding module for setting pre-embedded parts and a bottom shielding module for setting the bottom and circumferential support of the tokamak dewar base. The design module is used to perform structural design on each of the biological shielding occupant modules based on the performance indicators of the biological shielding wall to obtain the biological shielding engineering module. The engineering refinement module is used to divide each of the biological shielding engineering modules along the circumference to obtain multiple prefabricated sub-modules, and to obtain a biological shielding wall assembled from the multiple prefabricated sub-modules.

[0014] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the design method of the biological shielding wall of the fusion device described above.

[0015] The design method for the biological shielding wall of a fusion device provided by this invention reduces complex on-site operations involving high altitudes, high intensity, and long durations, thereby lowering construction safety risks. Furthermore, if internal components need to be replaced or repaired in the future, the corresponding structures on specific prefabricated sub-modules can be selectively dismantled. Modular dismantling of the biological shielding wall and waste disposal are also more efficient when the fusion device reaches the end of its lifespan. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a flowchart illustrating the design method of the biological shielding wall for the fusion device provided by the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of the biological shielding wall provided by the present invention.

[0019] Figure 3 This is a schematic diagram of the top shielding module provided by the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of one of the central shielding modules provided by the present invention.

[0021] Figure 5 This is a schematic diagram of another central shielding module provided by the present invention.

[0022] Figure 6 This is a schematic diagram of the bottom shielding module provided by the present invention.

[0023] Figure 7 This is a cross-sectional schematic diagram of the biological shielding engineering module provided by the present invention.

[0024] Figure 8 This is one of the structural schematic diagrams of the wall frame provided by the present invention.

[0025] Figure 9 This is the second structural schematic diagram of the wall frame provided by the present invention.

[0026] Figure 10 This is a schematic diagram of the structure of the electronic device provided by the present invention.

[0027] Figure label: 1. Biological shielding wall; 11. Top shielding module; 12. Middle shielding module; 13. Bottom shielding module; 14. Embedded parts; 15. Lifting lugs; 16. Shielding wall window; 17. Welds; 110. Interior wall panel; 120. Exterior wall panel; 130. End plate; 131. Pouring hole; 140. Internal reinforcing plate; 150. Horizontal reinforcing bar; 160. Vertical reinforcing bar; 170. Shear anchor nail; 180. Diagonal reinforcing rib; 810, Processor; 820, Communication interface; 830, Memory; 840, Communication bus. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0029] The bio-shield wall of the fusion device in related technologies uses a monolithic structure of reinforced concrete cage, requiring on-site construction by workers. This involves extensive high-altitude, high-intensity, and prolonged complex work, posing certain safety risks. Furthermore, maintaining and dismantling the bio-shield wall as a single unit is inconvenient during the operation and maintenance phase and at the end of its lifespan.

[0030] Based on this, an embodiment of the first aspect of this application provides a design method for a biological shielding wall of a fusion device. This method decomposes the massive, monolithic biological shielding wall into multiple standardized, easily transportable and installable modules, which are then assembled on-site like building blocks. Please see [link to relevant documentation]. Figure 1 The design method for the biological shielding wall of the fusion device according to embodiments of the present invention includes: Step 10, Combining Figures 2 to 6 The biological shielding occupancy model is divided along the height direction to obtain multiple biological shielding occupancy modules. The biological shielding occupancy module includes at least a top shielding module 11 for setting the embedded parts 14 (especially high load-bearing embedded parts), and a bottom shielding module 13 for setting the bottom and circumferential support of the tokamak dewar base.

[0031] According to the embodiments of this application, 3D modeling software such as Solidworks, UG, and CATIA can be used to modularly divide the biological shielding occupant model, and the resulting biological shielding occupant modules can be saved in a suitable storage format.

[0032] To facilitate the segmentation of the biological shielding berth model, a tokamak model, a tokamak support model, and a biological shielding berth model can be established first. Then, the biological shielding berth model can be segmented based on the structures of the tokamak model and the tokamak support model. For example, segmenting the biological shielding berth model along the height direction yields two middle shielding modules 12. The top shielding module 11 and both middle shielding modules 12 are provided with through holes. The through holes of the top shielding module 11 correspond to and connect with the upper window on the tokamak model. The through holes of one middle shielding module 12 correspond to and connect with the middle window of the tokamak model, and the through holes of the other middle shielding module 12 correspond to and connect with the lower window of the tokamak model. The bottom shielding module 13 is provided with through holes to correspond to the installation position of the bottom power feeder, serving as a power feeder installation channel.

[0033] Of course, even without pre-establishing a tokamak model and tokamak support model, corresponding functional areas can be marked on the biological shielding berth model, allowing for segmentation based on these markings. Alternatively, from the perspective of ease of processing and transportation, the biological shielding berth model can be segmented along the height direction to obtain multiple biological shielding berth modules with the same or similar height dimensions. The specific methods for segmenting the biological shielding berth model are not limited to the examples given here. As long as the biological shielding berth model is segmented into multiple biological shielding berth modules, the use of on-site labor, formwork, and scaffolding can be reduced, making the overall cost more controllable.

[0034] In one embodiment, the tokamak's main unit has a complete vacuum chamber with 16 windows at the top, middle, and bottom. These windows serve as mounting points for internal components and wiring channels for diagnostic devices. Figure 2 The window is connected to the window position embedded part 14 of the biological shielding wall 1 via a corrugated pipe and a connecting sealing plate. The tokamak's main unit contains 16 sets of longitudinal superconducting magnets, and its bottom feed line also needs to be connected to the ring-shaped feed line outside the biological shielding wall 1 through a through hole in the biological shielding wall 1.

[0035] Step 20: Based on the performance indicators of biological shielding wall 1, structural design is carried out for each biological shielding occupancy module to obtain the biological shielding engineering module.

[0036] The performance indicators of the biological shielding wall 1 may include at least one of the following: the stress distribution of the biological shielding wall 1, the distribution of the embedded parts 14, and the required radiation intensity.

[0037] The stress on the biological shielding wall 1 is not uniform along its height. Generally, the top of the biological shielding wall 1 is a high-stress area due to the embedded parts 14, including the bracket embedded parts for support. The bottom of the biological shielding wall 1 is also a high-stress area because it has to support the bottom of the tokamak dewar base and the circumferential support. The middle part of the biological shielding wall 1 generally corresponds to a low-stress area. Of course, the low-stress area here is a relative concept, referring to the fact that the stress on the middle part of the biological shielding wall 1 is less than that on the top and bottom. Based on the different stresses in different areas of the biological shielding wall 1, the biological shielding occupant modules are designed separately, and the resulting biological shielding engineering module can better meet the load-bearing requirements.

[0038] In one embodiment, based on the different stresses experienced by each biological shielding occupant module, biological shielding engineering modules with different wall frames or different filling materials are obtained. For example, for high-stress areas, the structural strength of the wall frame can be designed to be stronger; while for low-stress areas, the structural requirements of the wall frame can be appropriately reduced by integrating multiple stages such as preparation, transportation, and assembly.

[0039] When designing the structure of each biological shielding occupant module based on the distribution of the embedded parts 14, the reinforcement ratio of the wall frame can be increased in areas with concentrated large openings of the embedded parts 14; while the reinforcement ratio of the wall frame can be reduced in general areas with fewer or no openings. When designing the structure of each biological shielding occupant module based on radiation intensity, the radiation-resistant concrete material can be appropriately differentiated between high-radiation and general-radiation areas.

[0040] In one embodiment, based on the different forces experienced by each biological shielding occupant module and the different distributions of the embedded parts 14, biological shielding engineering modules with different wall frames or different filling materials are obtained. The specific structure of the biological shielding occupant modules can be refined using 3D modeling software such as Solidworks, UG, and CATIA.

[0041] refer to Figure 7 and Figure 8The wall frame includes an inner wall panel 110, an outer wall panel 120, and an end panel 130. The wall frame also includes internal reinforcing members, which may include at least one of an internal reinforcing plate 140, a horizontal reinforcing rib 150, a vertical reinforcing rib 160, a shear anchor nail 170, and a diagonal reinforcing rib 180. Because the wall frame includes an inner wall panel 110, an outer wall panel 120, and an end panel 130, the biological shielding wall 1 of this embodiment is significantly different from the biological shielding wall 1 in the prior art. Because the existing biological shielding wall 1 is an integrated structure of reinforced concrete, the installation of its embedded parts 14 is inconvenient, and it is very difficult to repair or replace any part of the biological shielding wall 1, or even to scrap the entire biological shielding wall 1. In this application, since the wall frame includes an inner wall panel 110 and an outer wall panel 120, radiation-resistant concrete is filled in the inner wall panel 110, the outer wall panel 120 and the end plate 130. Therefore, the required parts of the biological shielding wall 1 can be installed by attaching to the inner wall panel 110 and the outer wall panel 120, which can greatly reduce maintenance costs in subsequent maintenance.

[0042] According to the embodiments of this application, when the inner wall panel 110 and the outer wall panel 120 are steel plates, the resulting wall frame is a steel plate concrete structure. The steel plate itself has high structural strength and good shielding effect. Therefore, replacing the traditional reinforced concrete cage structure with a steel plate concrete structure can reduce the thickness of the biological shielding wall 1, reduce the amount of radiation-resistant concrete used, and reduce construction difficulty. Furthermore, combined with… Figure 7 The wall frame is connected to a lifting lug 15, and the wall frame is provided with a pouring hole 131 and a shielding wall window 16.

[0043] According to the embodiments of this application, based on the different arrangements and bearing capacities of the embedded parts 14 in various areas of the biological shielding wall 1, the thickness of the inner wall panel 110, the outer wall panel 120 and the end panel 130, as well as the structural arrangement density and cross-sectional dimensions of the horizontal reinforcing ribs 150, the vertical reinforcing ribs 160, the shear anchor nails 170 and the diagonal reinforcing ribs 180 are adjusted.

[0044] According to the embodiments of this application, when selecting the wall frame (i.e., selecting materials), it is necessary to consider that the material composition should not contain elements that, after activation, form high radiation dose rate isotopes with long decay periods or high radiation dose rate isotopes with short decay periods. The material should have low relative magnetic permeability, high strength, be easy to process in the workshop and construct on site, and be easy to procure.

[0045] When selecting radiation-shielding concrete, it is necessary to choose a suitable mix proportion. Factors to consider include the neutron shielding efficiency, workability, strength, and curing difficulty of the radiation-shielding concrete.

[0046] Based on the above structural design and selection, an initial engineering module can be obtained. This initial engineering module can then be saved in a format compatible with finite element analysis software such as Ansys and Abaqus. Furthermore, finite element analysis software can be used to perform topology analysis and structural optimization on the wall frame, verify the mix proportion of the neutron shielding efficiency of the radiation-resistant concrete, and verify the influence of the biological shielding engineering module on the magnetic field configuration of the tokamak device, thus obtaining a biological shielding engineering module with parameters reaching preset values. Specifically, the initial engineering module is obtained and the model is simplified. Calculation equations and processing methods are selected, and material properties are defined. Boundary conditions are added, including loads and constraints under extreme conditions. Meshment is performed and calculations are conducted. Based on the calculation results, topology analysis and structural optimization are performed on the wall frame. Boundary conditions and source terms are added, meshed, and calculated. Based on the calculation results, the mix proportion of the neutron shielding efficiency of the radiation-resistant concrete is verified. Boundary conditions and physical fields are added, meshed, and calculated. Based on the calculation results, the influence of the biological shielding engineering module structure on the magnetic field configuration of the tokamak device is verified. The process involves verifying the neutron shielding efficiency of the radiation-resistant concrete through mix proportion adjustments, including adding or subtracting material specifications. This verification is repeated until all parameters meet the technical requirements, resulting in the final biological shielding engineering module. The extreme loads and constraints mentioned above include earthquakes and accidents. Under these boundary conditions, it is necessary to verify the neutron radiation shielding efficiency of biological shielding wall 1, as well as its impact on magnetic field strength and configuration.

[0047] According to the embodiments of this application, the biological shielding engineering module that has undergone finite element analysis can be saved in a format suitable for 3D modeling software such as Solidworks, UG, and CATIA.

[0048] According to the embodiments of this application, all metal structures in the building space where the tokamak device is located, especially the biological shielding wall 1 in the core region of the magnetic field, should have extremely low relative magnetic permeability to avoid affecting the magnetic confinement state of the tokamak device, thereby causing plasma configuration shift, reduced plasma heating efficiency, damage to internal components of the tokamak fusion device, or even serious consequences such as melting and damage to internal components of the tokamak device when exposed to high-temperature plasma or the huge energy of nuclear fusion.

[0049] Meanwhile, although nuclear fusion does not produce long-term radioactive waste, it can activate elements in metals. Some activated elements can form high-dose-rate isotopes with long decay periods or high-dose-rate isotopes with short decay periods. During subsequent operation, maintenance, and upgrades, personnel will frequently enter and exit the core operating area of ​​the tokamak. If the exposed metal of the biological shielding wall 1 contains high-dose-rate isotopes with long decay periods or high-dose-rate isotopes with short decay periods, it will directly cause radiation damage to the human body. It may also lead to radioactive contamination events, resulting in more serious consequences.

[0050] Finally, the tokamak device has an extremely complex structure, involving multiple disciplines such as electrical, piping, and ventilation, as well as various operating conditions including dynamic, static, low-temperature, high-temperature, normal pressure, and high-pressure. This results in a large variety and quantity of embedded parts 14 in the surrounding biological shielding wall 1. In addition, each individual device or system of the tokamak device has a very large weight. After installation, it will be directly positioned on the bottom of the tokamak dewar base and circumferential support at the bottom of the biological shielding wall 1. During assembly, it is necessary to use bracket embedded parts fixed around the upper window of the biological shielding wall 1, which places very high demands on the load-bearing capacity of the bracket embedded parts. As a result, the biological shielding wall 1 serves as the fixing object for various embedded parts 14, which are numerous, complex in structure, and have a large load, placing extremely high demands on the load-bearing capacity of the biological shielding wall 1.

[0051] In one embodiment, the inner wall panel 110, outer wall panel 120, and internal reinforcing plate 140 are all made of S30408 ​​stainless steel. The plate thickness is determined according to the different load-bearing conditions at different locations. To ensure that the content of elements with high radiation dose rate isotopes that have long decay periods after activation or high radiation dose rate isotopes with short decay periods in the material composition is sufficiently low, the weight percentage of cobalt (Co) is <0.2 wt.%, the weight percentage of niobium (Nb) is <0.05 wt.%, and the relative magnetic permeability is not greater than 1.5. The horizontal reinforcing ribs 150 and vertical reinforcing ribs 160 are made of S30408 ​​stainless steel ribbed steel bars, the diameter of which is determined according to the tensile strength at different locations, and the steel bar density is determined according to the different load-bearing conditions at different locations. Both the shear anchor 170 and the diagonal reinforcing rib 180 are made of stainless steel S30408. The diameter of the shear anchor 170 is determined according to the tensile strength at different locations, and the length and density are determined according to the different load conditions. The diagonal reinforcing rib 180 can be made of angle steel, channel steel or other steel materials.

[0052] According to embodiments of this application, the radiation protection needs to have the ease of densely filling the biological shielding module, high strength after the curing period, and a relatively short curing cycle.

[0053] In one embodiment, a suitable mix proportion of radiation-resistant concrete is selected to achieve a neutron shielding efficiency of over 90%; considering the workability of radiation-resistant concrete, the slump is between 180mm and 220mm; the strength of radiation-resistant concrete is not lower than that of C40 radiation-resistant concrete; considering the difficulty of pouring and curing radiation-resistant concrete, the curing period of radiation-resistant concrete in summer is guaranteed to be no more than 14 days.

[0054] Step 30: Divide each biological shielding engineering module along the circumference to obtain multiple prefabricated sub-modules, and obtain the biological shielding wall 1 assembled from multiple prefabricated sub-modules.

[0055] In step 30, 3D modeling software such as Solidworks, UG, and CATIA can be used to refine the biological shielding engineering module into prefabricated sub-modules that are easy to manufacture and transport through engineering detailing design. The more prefabricated sub-modules included in each biological shielding engineering module, the simpler the transportation and hoisting, but the more complex the assembly process becomes. Prefabricated sub-modules can be prepared in advance in the factory and then transported to the construction site, which can significantly reduce wet work and curing time on the construction site and accelerate the project progress. In one embodiment, the external dimensions of the prefabricated sub-modules should be convenient for land or sea transportation, with any dimension not exceeding 3m in length, width, or height.

[0056] According to embodiments of this application, threaded steel sleeves can be used to fix the vertical reinforcing ribs 160 to each layer of the biological shielding engineering modules. Furthermore, threaded steel sleeves can also be used to connect the prefabricated sub-modules of the biological shielding engineering module to the transverse reinforcing ribs. By spirally fixing the steel sleeves to the vertical reinforcing ribs 160 of one of the biological shielding engineering modules, adjacent biological shielding engineering modules can be directly inserted into the steel sleeves, thereby ensuring the structural strength of the biological shielding engineering module. Alternatively, by spirally fixing the steel sleeves to the transverse reinforcing ribs of one of the prefabricated sub-modules, the reinforcing ribs of adjacent prefabricated sub-modules can be directly inserted into the steel sleeves, thereby ensuring the structural strength of the prefabricated sub-modules.

[0057] According to the embodiments of this application, refer to Figure 9 Each biological shielding engineering module is divided into multiple prefabricated sub-modules, with the weld seams 17 of adjacent biological shielding engineering modules staggered. Due to this staggered distribution of weld seams 17, after welding adjacent prefabricated sub-modules, the weld seams 17 of multiple biological shielding engineering modules in the vertical direction will not be on the same vertical line. To facilitate assembly, each prefabricated sub-module should have lifting lugs 15 pre-designed for hoisting (the structure of the lifting lugs 15 can be found in [reference]). Figure 7 ).

[0058] The design method of the biological shielding wall 1 of the fusion device according to the embodiments of this application reduces complex on-site operations involving high altitude, high intensity, and long duration, thereby lowering construction safety risks. Furthermore, if internal components need to be replaced or repaired in the future, the corresponding structures on specific prefabricated sub-modules can be dismantled in a targeted manner, and when the fusion device reaches the end of its lifespan, the modular dismantling of the biological shielding wall 1 and waste disposal are also more efficient.

[0059] According to an embodiment of the second aspect of this application, a design apparatus for a biological shielding wall 1 for a fusion device is provided. It should be noted that all content in the first aspect embodiment can be used to explain the content of the second aspect embodiment; therefore, the same content will not be repeated.

[0060] The design of the biological shielding wall 1 of the fusion device includes: The segmentation module is used to segment the biological shielding occupant model along the height direction to obtain multiple biological shielding occupant modules. The biological shielding occupant module includes at least a top shielding module 11 for setting the embedded part 14, and a bottom shielding module 13 for setting the bottom and circumferential support of the tokamak dewar base. The design module is used to perform structural design on each biological shielding occupant module based on the performance indicators of biological shielding wall 1 to obtain the biological shielding engineering module. The engineering refinement module is used to divide each biological shielding engineering module along the circumference to obtain multiple prefabricated sub-modules, and to obtain a biological shielding wall 1 assembled from multiple prefabricated sub-modules.

[0061] In one embodiment, the segmentation module is used to segment the biological shielding spacer model along the height direction based on the established tokamak model, tokamak support model, and biological shielding spacer model to obtain two middle shielding modules 12. The top shielding module 11 and the two middle shielding modules 12 are provided with through holes to correspond to and connect with the upper window, middle window, and lower window on the tokamak model, respectively. The bottom shielding module 13 is provided with through holes to correspond to the bottom power feeder installation position and serve as a power feeder installation channel.

[0062] In one embodiment, the design module obtains biological shielding engineering modules with different wall frames or different filling materials based on the different forces on each biological shielding occupant module and the different distribution of the pre-embedded parts 14.

[0063] In one embodiment, the wall frame includes an inner wall panel 110, an outer wall panel 120, and an end panel 130. The wall frame also includes at least one of an internal reinforcing plate 140, a horizontal reinforcing rib 150, a vertical reinforcing rib 160, a shear anchor nail 170, and an oblique reinforcing rib 180. And / or, The composition of the wall frame meets the following requirements: cobalt weight percentage <0.2%, niobium weight percentage <0.05%, and relative magnetic permeability not greater than 1.5; The filling material is radiation-resistant concrete, which meets the following requirements: neutron shielding efficiency greater than 90%, slump between 180mm and 220mm, strength not lower than C40, and curing period not greater than 14 days.

[0064] In one embodiment, the design module is used to perform topology analysis and structural optimization of the wall frame using finite element analysis software, verify the mix proportion of the neutron shielding rate of the radiation-resistant concrete, and verify the influence of the biological shielding engineering module on the magnetic field configuration of the tokamak device, so as to obtain a biological shielding engineering module with parameters reaching the preset values.

[0065] In one embodiment, the design module is used for: Obtain the initial engineering module, simplify the model, select calculation equations and processing methods, and define material properties; Boundary conditions are added, including loads and constraints under extreme conditions. The system is then meshed and calculated. Based on the calculation results, topology analysis and structural optimization are performed on the wall frame. Boundary conditions and source terms are added, meshed, and calculated. Based on the calculation results, the mix proportion verification of the neutron shielding rate of the radiation-resistant concrete is conducted. Boundary conditions and physical fields are added, meshed, and calculated. Based on the calculation results, the influence of the biological shielding engineering module structure on the magnetic field configuration of the tokamak device is verified.

[0066] In one embodiment, the engineering refinement module is used to divide the bio-shielding engineering module according to processing and transportation conditions. Furthermore, the engineering refinement module can be used to divide each bio-shielding engineering module into multiple prefabricated sub-modules, such that the weld seams 17 of the prefabricated sub-modules of adjacent bio-shielding engineering modules are staggered.

[0067] According to a third embodiment of the present invention, an electronic device is provided. Figure 10 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 10As shown, the electronic device may include: a processor 810, a communication interface 820, a memory 830, and a communication bus 840, wherein the processor 810, the communication interface 820, and the memory 830 communicate with each other through the communication bus 840. The processor 810 can call the logic instructions in the memory 830 to execute the design method of the biological shielding wall 1 of the fusion device. The method includes: dividing the biological shielding occupant model along the height direction to obtain multiple biological shielding occupant modules, wherein the biological shielding occupant module includes at least a top shielding module 11 for setting the embedded part 14, and a bottom shielding module 13 for supporting the bottom and circumferential support of the tokamak dewar base; based on the performance indicators of the biological shielding wall 1, structurally designing each biological shielding occupant module to obtain a biological shielding engineering module; dividing each biological shielding engineering module along the circumferential direction to obtain multiple prefabricated sub-modules, and obtaining the biological shielding wall 1 assembled from multiple prefabricated sub-modules.

[0068] Furthermore, the logical instructions in the aforementioned memory 830 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, essentially, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of the present invention. The aforementioned storage medium includes: USB flash drives, portable hard drives, read-only memory 830 (ROM), random access memory 830 (RAM), magnetic disks, optical disks, and other media capable of storing program code.

[0069] On the other hand, the present invention also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by the processor 810, the computer can execute the design method of the biological shielding wall 1 of the fusion device provided by the above methods. The method includes: dividing the biological shielding occupant model along the height direction to obtain multiple biological shielding occupant modules, wherein the biological shielding occupant module includes at least a top shielding module 11 for setting the pre-embedded part 14 and a bottom shielding module 13 for supporting the bottom and circumferential support of the tokamak dewar base; based on the performance indicators of the biological shielding wall 1, structurally designing each biological shielding occupant module to obtain a biological shielding engineering module; dividing each biological shielding engineering module along the circumferential direction to obtain multiple prefabricated sub-modules, and obtaining the biological shielding wall 1 assembled from multiple prefabricated sub-modules.

[0070] In another aspect, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor 810, implements a design method for the bio-shielding wall 1 of the fusion device provided by the above methods. The method includes: dividing the bio-shielding occupant model along the height direction to obtain multiple bio-shielding occupant modules, wherein the bio-shielding occupant module includes at least a top shielding module 11 for setting the embedded part 14, and a bottom shielding module 13 for supporting the bottom and circumferential support of the tokamak dewar base; based on the performance indicators of the bio-shielding wall 1, structurally designing each bio-shielding occupant module to obtain a bio-shielding engineering module; dividing each bio-shielding engineering module along the circumferential direction to obtain multiple prefabricated sub-modules, and obtaining the bio-shielding wall 1 assembled from multiple prefabricated sub-modules.

[0071] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0072] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of various embodiments or some parts of embodiments.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A design method for a biological shielding wall of a fusion device, characterized in that, include: The biological shielding occupant model is divided along the height direction to obtain multiple biological shielding occupant modules. The biological shielding occupant module includes at least a top shielding module for setting the embedded parts and a bottom shielding module for setting the bottom and circumferential support of the tokamak dewar base. Based on the performance indicators of the biological shielding wall, the structure of each of the biological shielding occupant modules is designed to obtain the biological shielding engineering module. The biological shielding engineering modules are divided along the circumference to obtain multiple prefabricated sub-modules, and a biological shielding wall is obtained by assembling the multiple prefabricated sub-modules.

2. The design method for the biological shielding wall of the fusion device according to claim 1, characterized in that, The biological shielding occupancy model is segmented along the height direction to obtain multiple biological shielding occupancy modules, including: Based on the established tokamak model, tokamak support model, and biological shielding occupancy model, the biological shielding occupancy model is divided along the height direction to obtain two middle shielding modules. The top shielding module and the two middle shielding modules are provided with through holes to correspond to and connect with the upper window, middle window, and lower window on the tokamak model, respectively. The bottom shielding module is provided with through holes to correspond to the bottom power feeder installation position and serve as a power feeder installation channel.

3. The design method for the biological shielding wall of the fusion device according to claim 1, characterized in that, Based on the performance indicators of the biological shielding wall, the structural design of each of the biological shielding occupant modules is carried out to obtain the biological shielding engineering module, including: Based on the different forces and different distributions of embedded parts of each of the biological shielding occupant modules, biological shielding engineering modules with different wall frames or different filling materials are obtained.

4. The design method for the biological shielding wall of the fusion device according to claim 3, characterized in that, The wall frame includes an inner wall panel, an outer wall panel, and an end panel. The wall frame also includes at least one of an internal reinforcing plate, a horizontal reinforcing rib, a vertical reinforcing rib, a shear anchor, and an oblique reinforcing rib. And / or, The composition of the wall frame meets the following requirements: cobalt weight percentage <0.2%, niobium weight percentage <0.05%, and relative magnetic permeability not greater than 1.5; The filling material is radiation-resistant concrete, which meets the following requirements: neutron shielding efficiency greater than 90%, slump between 180mm and 220mm, strength not lower than C40, and curing period not greater than 14 days.

5. The design method for the biological shielding wall of the fusion device according to claim 4, characterized in that, The biological shielding engineering modules, which are obtained by varying the stress on each of the biological shielding occupant modules and the distribution of embedded parts, and thus have different wall frames or different filling materials, include: Finite element analysis software was used to perform topology analysis and structural optimization of the wall frame, verify the mix proportion of the neutron shielding efficiency of the radiation-resistant concrete, and verify the influence of the biological shielding engineering module on the magnetic field configuration of the tokamak device, so as to obtain a biological shielding engineering module with parameters reaching the preset values.

6. The design method for the biological shielding wall of the fusion device according to claim 5, characterized in that, The process involves using finite element analysis software to perform topology analysis and structural optimization of the wall frame, verifying the mix proportion of the neutron shielding efficiency of the radiation-resistant concrete, and verifying the influence of the biological shielding engineering module on the magnetic field configuration of the tokamak device, in order to obtain a biological shielding engineering module with parameters reaching preset values. This includes: Obtain the initial engineering module, simplify the model, select calculation equations and processing methods, and define material properties; Boundary conditions are added, including loads and constraints under extreme conditions. The system is then meshed and calculated. Based on the calculation results, topology analysis and structural optimization are performed on the wall frame. Boundary conditions and source terms are added, meshed, and calculated. Based on the calculation results, the mix proportion verification of the neutron shielding rate of the radiation-resistant concrete is conducted. Boundary conditions and physical fields are added, meshed, and calculated. Based on the calculation results, the influence of the biological shielding engineering module structure on the magnetic field configuration of the tokamak device is verified.

7. The design method for the biological shielding wall of the fusion device according to any one of claims 1 to 6, characterized in that, The process of dividing each of the biological shielding engineering modules along the circumference to obtain multiple prefabricated sub-modules, and then assembling the biological shielding wall from these prefabricated sub-modules, includes: The bio-shielding engineering modules are divided according to processing and transportation conditions.

8. The design method for the biological shielding wall of the fusion device according to any one of claims 1 to 6, characterized in that, The process of dividing each of the biological shielding engineering modules along the circumference to obtain multiple prefabricated sub-modules, and then assembling the biological shielding wall from these prefabricated sub-modules, includes: Each of the biological shielding engineering modules is divided into multiple prefabricated sub-modules, such that the weld seams of the prefabricated sub-modules of adjacent biological shielding engineering modules are staggered.

9. A design device for a biological shielding wall of a fusion device, characterized in that, include: A segmentation module is used to segment the biological shielding occupant model along the height direction to obtain multiple biological shielding occupant modules. The biological shielding occupant modules include at least a top shielding module for setting pre-embedded parts and a bottom shielding module for setting the bottom and circumferential support of the tokamak dewar base. The design module is used to perform structural design on each of the biological shielding occupant modules based on the performance indicators of the biological shielding wall to obtain the biological shielding engineering module. The engineering refinement module is used to divide each of the biological shielding engineering modules along the circumference to obtain multiple prefabricated sub-modules, and to obtain a biological shielding wall assembled from the multiple prefabricated sub-modules.

10. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the design method for the biological shielding wall of the fusion device as described in any one of claims 1 to 8.

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