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

Abstract

The application provides a design method, device and electronic equipment of a biological shielding wall of a fusion device. The design method of the biological shielding wall of the fusion device comprises: segmenting a biological shielding placeholder model along a height direction to obtain a plurality of biological shielding placeholder modules, the biological shielding placeholder modules at least comprising a top shielding module for setting a pre-embedded part and a bottom shielding module for setting a Tokamak Dua bottom and a ring support; based on a performance index of the biological shielding wall, respectively designing structures of the biological shielding placeholder modules to obtain biological shielding engineering modules; dividing the biological shielding engineering modules along a circumferential direction to obtain a plurality of prefabricated sub-modules, and obtaining a biological shielding wall assembled by the plurality of prefabricated sub-modules. The method reduces complex operations on site, high in the air, high intensity and long time, reduces construction safety risks, and is more efficient in modular disassembly of the biological shielding wall and waste treatment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fusion devices, and in particular to a design method and device for a biological shielding wall of a fusion device and an electronic device. BACKGROUND

[0002] The biological shielding wall of a fusion device mainly refers to a building structure arranged at the periphery of a tokamak device, used for supporting the tokamak device, providing a through hole for a window component of the tokamak device and support, and providing a top ring support for assembly of the tokamak device, and is used for absorbing and weakening neutrons and gamma rays generated by a fusion reaction, reducing the radiation level outside the fusion device to below the legal safety limit, and protecting personnel and the environment from ionizing radiation hazards.

[0003] The biological shielding wall of the fusion device in the related art has obvious limitations in terms of construction mode, economy and inherent safety in the whole life cycle. There are a large number of complex operations at high altitudes, high intensity and long time on site, which have certain construction safety risks. Moreover, in the operation and maintenance stage and at the end of life, the biological shielding wall is inconvenient to maintain and demolish as a whole. SUMMARY

[0004] The present application provides a design method and device for a biological shielding wall of a fusion device and an electronic device to solve the technical problems of construction safety, maintenance and demolition inconvenience of the biological shielding wall of the fusion device in the prior art.

[0005] The present application provides a design method for a biological shielding wall of a fusion device, comprising:

[0006] segmenting a biological shielding placeholder model along a height direction to obtain a plurality of biological shielding placeholder modules, wherein the biological shielding placeholder modules at least include a top shielding module for setting a pre-embedded part, and a bottom shielding module for setting a tokamak duva bottom and a ring support;

[0007] based on performance indicators of the biological shielding wall, respectively designing the structure of each biological shielding placeholder module to obtain a biological shielding engineering module;

[0008] dividing each biological shielding engineering module along a circumferential direction to obtain a plurality of prefabricated sub-modules, and obtaining a biological shielding wall assembled by the plurality of prefabricated sub-modules.

[0009] According to the design method for a biological shielding wall of a fusion device provided by the present application, the biological shielding placeholder model is segmented along the height direction to obtain a plurality of biological shielding placeholder modules, comprising:

[0010] 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.

[0011] 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:

[0012] 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.

[0013] 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;

[0014] And / or,

[0015] 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;

[0016] 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.

[0017] 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:

[0018] 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.

[0019] The application provides a design method of a biological shielding wall of a fusion device, and the method comprises the following steps:

[0020] An initial engineering module is obtained, and model simplification processing is performed, calculation equations and processing methods are selected, and material properties are defined;

[0021] Boundary conditions including loads and constraints under extreme working conditions are added, meshing processing is performed, and calculation is performed, topological analysis and structural optimization of the wall skeleton are performed according to the calculation results, boundary conditions and source terms are added, meshing processing is performed, and calculation is performed, and the mixture ratio of the neutron shielding rate of the radiation shielding concrete is verified according to the calculation results, boundary conditions and physical fields are added, meshing processing is performed, and calculation is performed, and the influence of the structure of the biological shielding engineering module on the magnetic field position of the tokamak device is verified according to the calculation results.

[0022] The application provides a design method of a biological shielding wall of a fusion device, and the method comprises the following steps:

[0023] The biological shielding engineering module is divided according to processing and transportation conditions.

[0024] The application provides a design method of a biological shielding wall of a fusion device, and the method comprises the following steps:

[0025] Each biological shielding engineering module is divided into a plurality of prefabricated sub-modules, and the prefabricated sub-module weld seams of adjacent biological shielding engineering modules are distributed in a staggered manner.

[0026] The application further provides a design device of a biological shielding wall of a fusion device, and the device comprises:

[0027] The segmentation module is used for segmenting the biological shielding placeholder model along the height direction to obtain a plurality of biological shielding placeholder modules, wherein the biological shielding placeholder modules at least include a top shielding module used for arranging a pre-embedded part and a bottom shielding module used for arranging a tokamak Dua bottom and a ring-shaped support;

[0028] A design module is configured to design each of the biological shielding placeholder modules based on the performance index of the biological shielding wall to obtain a biological shielding engineering module.

[0029] An engineering deepening module is configured to divide each of the biological shielding engineering modules along a circumferential direction to obtain a plurality of prefabricated sub-modules, and obtain a biological shielding wall assembled by the plurality of prefabricated sub-modules.

[0030] The application further provides an electronic device, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, and the processor implements the design method of the biological shielding wall of the fusion device when executing the program.

[0031] The design method of the biological shielding wall of the fusion device provided by the application reduces the complex operation on site at high altitude, high strength and for a long time, and reduces the construction safety risk. In the future, if the internal components need to be replaced or overhauled, the corresponding structure on the specific prefabricated sub-module can be removed directionally, and when the service life of the fusion device ends, the modularized removal of the biological shielding wall and waste treatment are also more efficient. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the application or prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0033] Figure 1 is a flowchart of the design method of the biological shielding wall of the fusion device provided by the application.

[0034] Figure 2 is a structural schematic diagram of the biological shielding wall provided by the application.

[0035] Figure 3 is a structural schematic diagram of the top shielding module provided by the application.

[0036] Figure 4 is a structural schematic diagram of one of the middle shielding modules provided by the application.

[0037] Figure 5 is a structural schematic diagram of another middle shielding module provided by the application.

[0038] Figure 6 is a structural schematic diagram of the bottom shielding module provided by the application.

[0039] Figure 7 is a sectional view of the biological shielding engineering module provided by the application.

[0040] Figure 8 is one of the structural schematic diagrams of the wall skeleton provided by the present application.

[0041] Figure 9 is one of the structural schematic diagrams of the wall skeleton provided by the present application.

[0042] Figure 10 is one of the structural schematic diagrams of the wall skeleton provided by the present application.

[0043] Reference signs:

[0044] 1, biological shielding wall; 11, top shielding module; 12, middle shielding module; 13, bottom shielding module; 14, embedded part; 15, lifting lug; 16, shielding wall window; 17, welding seam;

[0045] 110, inner wall plate; 120, outer wall plate; 130, end plate; 131, pouring hole; 140, internal reinforcing plate; 150, horizontal reinforcing rib; 160, vertical reinforcing rib; 170, shear-resistant anchoring nail; 180, oblique reinforcing rib;

[0046] 810, processor; 820, communication interface; 830, memory; 840, communication bus. DETAILED DESCRIPTION

[0047] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below in conjunction with the drawings in the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0048] The biological shielding wall of the fusion device in the related art adopts an integrated structure of a steel cage pouring concrete, which needs workers to perform construction on site. The workers need to perform a large amount of complex operations with high altitude, high strength and long time on the construction site, which has certain construction safety risks. Moreover, during the operation and maintenance stage and at the end of the life, the biological shielding wall is inconvenient to maintain and demolish as a whole.

[0049] Based on this, the first aspect of the embodiments of the present application provides a design method of a biological shielding wall of a fusion device, which divides the huge and whole biological shielding wall into a plurality of standardized modules that are easy to transport and install in design, and then assembles the modules like building blocks on the construction site. Please refer to Figure 1 The design method of the biological shielding wall of the fusion device in the embodiments of the present application comprises:

[0050] Step 10,Figures 2 to 6 The biological shield occupancy model is segmented along the height direction to obtain a plurality of biological shield occupancy modules, wherein the biological shield occupancy modules at least include a top shielding module 11 for setting the embedded part 14 (especially the high-load embedded part), and a bottom shielding module 13 for setting the Tokamak D-shape bottom and the ring-shaped support.

[0051] According to the embodiments of the present application, the biological shield occupancy model can be segmented by using three-dimensional modeling software such as Solidworks, UG, CATIA, etc., and the segmented biological shield occupancy modules are saved in a suitable storage format.

[0052] In order to facilitate the segmentation of the biological shield occupancy model, the Tokamak model, the Tokamak support model and the biological shield occupancy model can be established first, and then the biological shield occupancy model is segmented according to the structure of the Tokamak model and the Tokamak support model. For example, the biological shield occupancy model is segmented along the height direction to obtain two middle shielding modules 12, wherein the top shielding module 11 and the two middle shielding modules 12 are provided with through holes, the through holes of the top shielding module 11 correspond to and are connected to the upper windows of the Tokamak model, the through holes of one of the two middle shielding modules 12 correspond to and are connected to the middle windows of the Tokamak model, and the through holes of the other of the two middle shielding modules 12 correspond to and are connected to the lower windows of the Tokamak model. The bottom shielding module 13 is provided with through holes to correspond to the bottom power supply line installation position and serve as a power supply line installation channel.

[0053] Of course, even if the Tokamak model and the Tokamak support model are not established in advance, the corresponding functional areas can be marked on the biological shield occupancy model, and the biological shield occupancy model is segmented based on the marking. Alternatively, the biological shield occupancy model can be segmented along the height direction to obtain a plurality of biological shield occupancy modules with the same or similar height dimensions for the convenience of processing and transportation. The specific method for segmenting the biological shield occupancy model is not limited by the examples herein, and as long as the biological shield occupancy model is segmented to obtain a plurality of biological shield occupancy modules, the use of labor, templates and scaffolding can be reduced, and the overall cost is more controllable.

[0054] In one embodiment, the main machine of the Tokamak has a complete vacuum chamber, and the vacuum chamber has 16 windows in the upper, middle and lower parts, which serve as internal component installation and diagnostic device wiring channels, combined with the Figure 2The window is connected with the window position embedded part 14 structure of the biological shield wall 1 through the bellows and the connecting sealing plate. The main machine of another tokamak contains 16 sets of longitudinal superconducting magnets, and the bottom feed line also needs to be connected with the loop feed line outside the biological shield wall 1 through the through hole on the biological shield wall 1.

[0055] Step 20, based on the performance index of the biological shield wall 1, the structure of each biological shield occupying module is designed to obtain a biological shield engineering module.

[0056] The performance index of the biological shield wall 1 can include at least one of the stress distribution of the biological shield wall 1, the distribution of the embedded part 14 and the required radiation intensity.

[0057] The stress of the biological shield wall 1 along the height direction is not uniform. Generally, the top of the biological shield wall 1 is a high stress area because the embedded part 14 thereof includes a bracket embedded part for support. The bottom of the biological shield wall 1 is also a high stress area because it needs to bear the bottom of the tokamak Doy bottom and the hoop support. The middle part of the biological shield wall 1 is generally a low stress area, which is a relative concept, that is, the stress of the middle part of the biological shield wall 1 is less than that of the top and bottom of the biological shield wall 1. Based on the different stresses of different regions of the biological shield wall 1, the biological shield occupying module is designed respectively, and the biological shield engineering module obtained by the design can better meet the bearing requirement.

[0058] In one embodiment, based on the different stresses of each biological shield occupying module, biological shield engineering modules with different wall skeletons or different fillers are obtained. For example, for the high stress area, the structural strength of the wall skeleton can be designed to be stronger; and for the low stress area, the structural requirements of the wall skeleton can be appropriately reduced by considering multiple links such as preparation, transportation and assembly.

[0059] When the structure of each biological shield occupying module is designed based on the distribution of the embedded part 14, for the large opening area where the embedded part 14 is concentrated, the reinforcement ratio of the wall skeleton can be increased; for the general area with less or no opening, the reinforcement ratio of the wall skeleton can be reduced. When the structure of each biological shield occupying module is designed based on the radiation intensity, the anti-radiation concrete material corresponding to the high radiation area and the general radiation area can also be appropriately distinguished.

[0060] In one embodiment, based on the different forces borne by each biological shielding placeholder module and the different distribution of the embedded parts 14, biological shielding engineering modules with different wall skeletons or different fillers are obtained. The specific structure of the biological shielding placeholder module can be refined by using three-dimensional modeling software such as Solidworks, UG, CATIA, etc.

[0061] With reference to Figure 7 and Figure 8 , the wall skeleton includes an inner wall plate 110, an outer wall plate 120, and an end plate 130, and further includes internal reinforcements, wherein the internal reinforcements can include at least one of an internal reinforcement plate 140, a horizontal reinforcing rib 150, a vertical reinforcing rib 160, a shear anchoring nail 170, and an oblique reinforcing rib 180. Since the wall skeleton includes the inner wall plate 110, the outer wall plate 120, and the end plate 130, the biological shielding wall 1 of the embodiment of the present application can be finally made quite different from the biological shielding wall 1 in the prior art. Since the biological shielding wall 1 in the prior art is an integrated structure of a steel reinforcement cage pouring concrete, the installation of the embedded parts 14 itself is inconvenient, and it is very difficult to repair or replace any component on the biological shielding wall 1, and even the entire biological shielding wall 1 needs to be scrapped directly. In the present application, since the wall skeleton includes the inner wall plate 110 and the outer wall plate 120, and the anti-radiation concrete is filled in the inner wall plate 110, the outer wall plate 120, and the end plate 130, the installation of the required components on the biological shielding wall 1 can be performed depending on the inner wall plate 110 and the outer wall plate 120, and the maintenance cost can be greatly reduced during subsequent maintenance.

[0062] According to the embodiment of the present application, when the inner wall plate 110 and the outer wall plate 120 are steel plates, the wall skeleton obtained at this time is a steel plate concrete structure. The steel plate itself has a large structural strength and a good shielding effect, and thus the use of the steel plate concrete structure to replace the traditional structure of a steel reinforcement cage pouring concrete can reduce the thickness of the biological shielding wall 1, reduce the use of anti-radiation concrete, and reduce the construction difficulty. In addition, in combination with Figure 7 , the wall skeleton is connected with a lifting lug 15, and the wall skeleton is provided with a pouring hole 131 and a shielding wall window 16.

[0063] According to the embodiment of the present application, based on the different arrangement and bearing capacity of the embedded parts 14 in each region of the biological shielding wall 1, the thickness of the inner wall plate 110, the outer wall plate 120, and the end plate 130, the arrangement density and cross-sectional size of the horizontal reinforcing rib 150, the vertical reinforcing rib 160, the shear anchoring nail 170, the oblique reinforcing rib 180, etc. are adjusted.

[0064] According to the embodiments of the present application, when the wall skeleton is selected (i.e., the material is selected), it is necessary to consider that the material composition should not contain elements that will form high irradiation dose rate isotopes with long decay period or high irradiation dose rate isotopes with short decay period after activation, the material should have a relatively low magnetic permeability, the material should have a high strength, the material should be easy to process in the workshop and easy to construct on site, the material should be easy to purchase, and the like.

[0065] When the anti-irradiation concrete is selected, it is necessary to select a suitable anti-irradiation concrete mix ratio. The neutron shielding efficiency, workability, strength, and curing difficulty of the anti-irradiation concrete are considered.

[0066] On the basis of the above structure design and selection, an initial engineering module can be obtained. On this basis, the obtained initial engineering module can be saved in a format applicable to finite element analysis software such as Ansys and Abaqus, and then the finite element analysis software can be used to perform topology analysis and structure optimization on the wall skeleton, verify the mix ratio of the neutron shielding rate of the anti-irradiation concrete, and verify the influence of the biological shielding engineering module on the magnetic field configuration of the tokamak device, to obtain a biological shielding engineering module with parameters reaching preset values. Specifically, the initial engineering module is obtained, and model simplification processing is performed, calculation equations and processing methods are selected, and material properties are defined; boundary conditions including loads and constraints under extreme working conditions are added, meshing processing is performed and calculation is performed, and according to the calculation results, topology analysis and structure optimization are performed on the wall skeleton; boundary conditions and source terms are added, meshing processing is performed and calculation is performed, and according to the calculation results, the mix ratio of the neutron shielding rate of the anti-irradiation concrete is verified; boundary conditions and physical fields are added, meshing processing is performed and calculation is performed, and according to the calculation results, the influence of the biological shielding engineering module structure on the magnetic field configuration of the tokamak device is verified. The verification of the mix ratio of the neutron shielding rate of the anti-irradiation concrete includes increasing or decreasing the material specifications and models, and re-verifying on this basis until all parameters meet the technical requirements, at which time the final biological shielding engineering module is obtained. The above-mentioned loads and constraints under extreme working conditions include earthquakes, accidents, and the like. Under the above boundary conditions, it is necessary to verify the neutron irradiation shielding rate of the biological shielding wall 1 and its influence on the magnetic field strength and configuration, and the like.

[0067] According to the embodiments of the present application, the biological shielding engineering module finally subjected to finite element analysis can be saved in a format applicable to three-dimensional modeling software such as Solidworks, UG, and CATIA.

[0068] According to the embodiment of the present application, all metal structures in the building space where the tokamak device is located, especially the biological shielding wall 1 in the magnetic field core area, should have the characteristics of extremely low relative magnetic permeability to avoid affecting the magnetic confinement state of the tokamak device, thereby causing the plasma position to deviate, the plasma heating efficiency to decrease, the internal components of the tokamak fusion device to be damaged, and even causing the internal components of the tokamak device to be exposed to high-temperature plasma or nuclear fusion energy and to be melted and damaged.

[0069] At the same time, although nuclear fusion does not produce long-period radioactive waste, it can cause the activation of elements in metals. After the activation of some elements, high irradiation dose rate isotopes with long decay periods or high irradiation dose rate isotopes with short decay periods are formed. During subsequent operation, maintenance, and upgrading, personnel need to frequently enter and exit the tokamak operation core area. If the exposed metal of the biological shielding wall 1 contains high irradiation dose rate isotopes with long decay periods or high irradiation dose rate isotopes with short decay periods, it will directly cause radiation damage to the human body. At the same time, radioactive material contamination events may also occur, thereby causing more serious consequences.

[0070] Finally, the tokamak device structure is extremely complex, involving electrical, piping, ventilation, and other specialties, and also involving dynamic, static, low-temperature, high-temperature, normal pressure, high-pressure, and other operating conditions, thereby resulting in a large number of types and quantities of embedded parts 14 of the biological shielding wall 1 outside. In addition, the single equipment or system of the tokamak device has a very large weight, which will be directly positioned on the tokamak duva bottom and the ring support at the bottom of the biological shielding wall 1 after installation. During the assembly process, the corbel embedded part fixed around the upper window of the biological shielding wall 1 needs to be used in cooperation. The bearing capacity of the corbel embedded part has a very large requirement. The biological shielding wall 1 as a fixed object of various embedded parts 14 has a large number of types of embedded parts 14, complex structures, and large loads, which have a great requirement for the bearing capacity of the biological shielding wall 1.

[0071] In one embodiment, the inner wall plate 110, the outer wall plate 120, and the internal reinforcing plate 140 are made of stainless steel material S30408 plate, and the thickness is determined according to the bearing capacity of different positions. In order to ensure that the content level of the element of the high irradiation dose rate isotope with a long decay period or the element of the high irradiation dose rate isotope with a short decay period is low enough after activation, the weight percentage of cobalt (Co) is less than 0.2wt.%, the weight percentage of niobium (Nb) is less than 0.05wt.%, and the relative magnetic permeability is not greater than 1.5. The horizontal reinforcing rib 150 and the vertical reinforcing rib 160 are selected from the ribbed steel bars of stainless steel material S30408, and the diameter is determined according to the tensile strength of different positions. The shear anchoring nail 170 and the inclined reinforcing rib 180 are made of stainless steel material S30408, the diameter of the shear anchoring nail 170 is determined according to the tensile strength of different positions, the length and density are determined according to the bearing capacity, and the inclined reinforcing rib 180 can be selected from angle steel, channel steel and other steel materials.

[0072] According to the embodiments of the present application, the anti-radiation needs to have workability that can densely fill the biological shielding module, high strength after the curing period is met, and a relatively short curing period is required.

[0073] In one embodiment, the appropriate anti-radiation concrete mix ratio is selected, so that the neutron shielding efficiency reaches more than 90%; considering the workability of the anti-radiation concrete, the slump is between 180mm and 220mm; the strength of the anti-radiation concrete is not less than C40; considering the difficulty of pouring and curing of the anti-radiation concrete, the anti-radiation concrete curing period in summer is not more than 14 days.

[0074] Step 30, each biological shielding engineering module is divided into a plurality of prefabricated sub-modules along the circumference, and a biological shielding wall 1 obtained by assembling the plurality of prefabricated sub-modules is obtained.

[0075] In step 30, Solidworks, UG, CATIA, or other three-dimensional modeling software can be used to refine the biological shielding engineering module into prefabricated sub-modules for processing, manufacturing, and transportation through engineering deepening 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. The prefabricated sub-modules can be prepared in advance in the factory and then transported to the construction site, thereby greatly reducing the wet work and curing time at the construction site and accelerating the project progress. In one embodiment, the prefabricated sub-modules have an outer size convenient for land or sea transportation, and the length, width, or height is not greater than 3m in any dimension.

[0076] According to the embodiment of the present application, the steel sleeve with internal thread can be used to fix and connect the vertical reinforcing bars 160 between each layer of the biological shielding engineering module. In addition, the steel sleeve with internal thread can also be used to connect the horizontal steel bars between each prefabricated sub-module of the biological shielding engineering module. By screwing the steel sleeve to the vertical reinforcing bars 160 of one of the biological shielding engineering modules, the adjacent biological shielding engineering modules can be directly inserted into the steel sleeve, thereby ensuring the structural strength of the biological shielding engineering module. Alternatively, by screwing the steel sleeve to the horizontal steel bars of one of the prefabricated sub-modules, the steel bars of the adjacent prefabricated sub-modules can be directly inserted into the steel sleeve, thereby ensuring the structural strength of the prefabricated sub-module.

[0077] According to the embodiment of the present application, the biological shielding engineering module is divided into a plurality of prefabricated sub-modules, and the weld seams 17 of the prefabricated sub-modules of adjacent biological shielding engineering modules are distributed in a staggered manner. Figure 9 Figure 7 ).

[0078] According to the design method of the biological shielding wall 1 of the fusion device, the complex operations of high altitude, high strength and long time on site are reduced, and the construction safety risk is reduced. In the future, if the internal components need to be replaced or repaired, the corresponding structure on the specific prefabricated sub-module can be removed directionally, and when the life of the fusion device ends, the modular disassembly of the biological shielding wall 1 and the waste treatment are also more efficient.

[0079] According to the embodiment of the second aspect of the present application, a design device of a biological shielding wall 1 of a fusion device is provided. It should be noted that all the contents in the first aspect embodiment can be used to explain the contents of the second aspect embodiment, therefore, the same contents will not be described in detail.

[0080] The design device of the biological shielding wall 1 of the fusion device comprises:

[0081] The segmentation module is used to segment the biological shielding placeholder model along the height direction to obtain a plurality of biological shielding placeholder modules, wherein the biological shielding placeholder module at least includes a top shielding module 11 for setting a pre-embedded part 14, and a bottom shielding module 13 for setting a Tokamak Doy bottom and a ring support;

[0082] ​The design module is configured to design each biological shielding placeholder module based on the performance indicators of the biological shielding wall 1 to obtain a biological shielding engineering module.

[0083] The engineering deepening module is configured to divide each biological shielding engineering module along a circumferential direction to obtain a plurality of prefabricated sub-modules, and obtain the biological shielding wall 1 assembled by the plurality of prefabricated sub-modules.

[0084] In one embodiment, the segmentation module is configured to segment the biological shielding placeholder model along a height direction based on the established tokamak model, the tokamak support model, and the biological shielding placeholder model to obtain two middle shielding modules 12, wherein the top shielding module 11 and the two middle shielding modules 12 are each provided with a through hole to correspond to and connect with an upper window, a middle window, and a lower window on the tokamak model, respectively, and the bottom shielding module 13 is provided with a through hole to correspond to a bottom power supply line installation position as a power supply line installation channel.

[0085] In one embodiment, the design module obtains biological shielding engineering modules with different wall skeletons or different fillers based on different forces and different distribution of embedded parts 14 of each biological shielding placeholder module.

[0086] In one embodiment, the wall skeleton includes at least one of an inner wall plate 110, an outer wall plate 120, and an end plate 130, and further includes at least one of an internal reinforcing plate 140, a horizontal reinforcing rib 150, a vertical reinforcing rib 160, a shear-resistant anchoring nail 170, and an oblique reinforcing rib 180.

[0087] and / or,

[0088] The composition of the wall skeleton satisfies: the weight percentage of cobalt <0.2%, the weight percentage of niobium <0.05%, and the relative magnetic permeability is not greater than 1.5.

[0089] The filler is a radiation protection concrete, and the radiation protection concrete satisfies: a neutron shielding efficiency greater than 90%, a slump between 180mm and 220mm, a strength not less than C40, and a curing period not greater than 14 days.

[0090] In one embodiment, the design module is configured to use finite element analysis software to perform topology analysis and structural optimization on the wall skeleton, verify the mix proportion of the neutron shielding rate of the radiation protection concrete, and verify the influence of the biological shielding engineering module on the magnetic field configuration of the tokamak device, to obtain a biological shielding engineering module with parameters reaching preset values.

[0091] In one embodiment, the design module is configured to:

[0092] An initial engineering module is acquired, and model simplification processing is performed, a calculation equation and processing method are selected, and material properties are defined;

[0093] Boundary conditions including loads and constraints under extreme working conditions are added, meshing processing is performed, and calculation is performed, based on the calculation results, topological analysis and structural optimization of the wall skeleton are performed, boundary conditions and source terms are added, meshing processing is performed, and calculation is performed, based on the calculation results, the neutron shielding rate of the radiation shielding concrete is verified by the mix proportion, boundary conditions and physical fields are added, meshing processing is performed, and calculation is performed, 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.

[0094] In one embodiment, the engineering deepening module is used to divide the biological shielding engineering module according to processing and transportation conditions. Further, the engineering deepening module can be used to divide each biological shielding engineering module to obtain a plurality of prefabricated sub-modules, and to make the prefabricated sub-module weld seams 17 of adjacent biological shielding engineering modules distributed in a staggered manner.

[0095] According to an embodiment of the third application of the application, an electronic device is provided, Figure 10 An example of a schematic diagram of the physical structure of an electronic device is shown in Figure 10 As shown, the electronic device can include a processor 810, a communications interface 820, a memory 830, and a communications bus 840, wherein the processor 810, the communications interface 820, and the memory 830 communicate with each other through the communications bus 840. The processor 810 can invoke the logical instructions in the memory 830 to execute the design method of the biological shielding wall 1 of the fusion device, which includes: dividing the biological shielding placeholder model along the height direction to obtain a plurality of biological shielding placeholder modules, wherein the biological shielding placeholder module at least includes a top shielding module 11 for setting a pre-embedded part 14, and a bottom shielding module 13 for bearing the bottom of the tokamak dural bottom and the ring-shaped support; based on the performance indicators of the biological shielding wall 1, respectively, the structure of each biological shielding placeholder module is designed to obtain a biological shielding engineering module; along the circumferential direction, each biological shielding engineering module is divided into a plurality of prefabricated sub-modules, and the biological shielding wall 1 obtained by assembling the plurality of prefabricated sub-modules is obtained.

[0096] Further, the logic instructions in the memory 830 described above can be implemented in the form of software functional units and sold or used as independent products, and can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application essentially or the parts that contribute to the prior art or parts of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the embodiments of the method of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory 830 (ROM, Read-Only Memory), a random access memory 830 (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes.

[0097] In another aspect, the present application also provides a computer program product, which comprises a computer program, the computer program can be stored on a non-transitory computer readable storage medium, and the computer program is executed by the processor 810, and the computer can execute the design method of the biological shield wall 1 of the fusion device provided by the above method, the method comprises: segmenting the biological shield placeholder model along the height direction to obtain a plurality of biological shield placeholder modules, wherein the biological shield placeholder module at least includes a top shielding module 11 for setting a pre-embedded part 14, and a bottom shielding module 13 for bearing the bottom of the tokamak dural base and the ring-shaped support; based on the performance index of the biological shield wall 1, the structure of each biological shield placeholder module is designed respectively to obtain a biological shield engineering module; each biological shield engineering module is divided along the circumferential direction to obtain a plurality of prefabricated sub-modules, and the biological shield wall 1 obtained by assembling the plurality of prefabricated sub-modules is obtained.

[0098] In another aspect, the present application also provides a non-transitory computer readable storage medium, which stores a computer program, and the computer program is executed by the processor 810 to implement the design method of the biological shield wall 1 of the fusion device provided by the above method, the method comprises: segmenting the biological shield placeholder model along the height direction to obtain a plurality of biological shield placeholder modules, wherein the biological shield placeholder module at least includes a top shielding module 11 for setting a pre-embedded part 14, and a bottom shielding module 13 for bearing the bottom of the tokamak dural base and the ring-shaped support; based on the performance index of the biological shield wall 1, the structure of each biological shield placeholder module is designed respectively to obtain a biological shield engineering module; each biological shield engineering module is divided along the circumferential direction to obtain a plurality of prefabricated sub-modules, and the biological shield wall 1 obtained by assembling the plurality of prefabricated sub-modules is obtained.

[0099] The device embodiments described above are merely illustrative, wherein the units illustrated as separate components can or can not be physically separate, and the components illustrated as units can or can not be physical units, i.e., can be located in one place, or can be distributed to multiple network units. Part or all of the modules can be selected to achieve the purposes of the embodiments according to actual needs. Those skilled in the art can understand and implement without creative labor.

[0100] Through the description of the above embodiments, those skilled in the art can clearly understand that the embodiments can be realized by means of software and the necessary general hardware platform, and of course can also be realized by hardware. Based on such understanding, the above technical solutions can be embodied in the form of software products, and the computer software products can be stored in a computer readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and include a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods of the embodiments or some parts of the embodiments.

[0101] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A 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 modules include 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 a biological shielding engineering module. Based on the different stresses 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. The wall frame includes an inner wall panel, an outer wall panel and an end panel, and the filling material is radiation-resistant concrete. 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, The wall frame also includes at least one of the following: internal reinforcing plate, horizontal reinforcing rib, vertical reinforcing rib, shear anchor nail, and diagonal 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 radiation-resistant concrete 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.

4. The design method for the biological shielding wall of the fusion device according to claim 3, 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.

5. The design method for the biological shielding wall of the fusion device according to claim 4, 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 radiation-resistant concrete neutron shielding efficiency, 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.

6. The design method for the biological shielding wall of the fusion device according to any one of claims 1 to 5, 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.

7. The design method for the biological shielding wall of the fusion device according to any one of claims 1 to 5, 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, and the weld seams of the prefabricated sub-modules of adjacent biological shielding engineering modules are staggered.

8. 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 a biological shielding engineering module. Based on the different stresses 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. The wall frame includes an inner wall panel, an outer wall panel and an end panel, and the filling material is radiation-resistant concrete. 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.

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