A nuclear fusion superconducting coil multi-element coupling working condition equivalent shear force detection system

Abstract

The application discloses a kind of nuclear fusion superconducting coil multi-element coupling working condition equivalent shear force detection system, belong to nuclear fusion superconducting coil conductor insulation development field.The nuclear fusion superconducting coil multi-element working condition equivalent shear force detection system contains nuclear magnetic resonance scanner, signal exchanger, liquid helium cooling system, superconducting coil immersion solidified insulation composite material sample, four-stage magnetic field, bipolar magnetic field, neutron irradiation probe, liftable rotating mechanical arm, AI big model processing server;Complete superconducting coil insulating material in nuclear fusion reaction stage magnetic coupling and equivalent shear force detection under the condition such as neutron irradiation;The equivalent shear force detection system of this insulating material can detect that the endogenic structure of superconducting coil insulation composite material changes in nuclear fusion reaction stage, can avoid superconducting coil electric insulation composite material and be forced to interrupt in nuclear fusion reaction due to equivalent shear force concentration and cause fatigue failure.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of developing armored superconducting coils for nuclear fusion, and in particular to a nuclear fusion superconducting coil equivalent shear force detection system under multi-element coupling working conditions. BACKGROUND

[0002] Nuclear fusion energy is considered as the ultimate solution to global energy crisis and climate problems due to its abundant fuel resources (deuterium and tritium can be extracted from seawater), no carbon emissions, and high safety. The realization of nuclear fusion energy cannot be achieved without the magnetic field generated by the full-steady-state superconducting magnet coil to confine the high-temperature plasma in the nuclear fusion device. The superconducting coil operates under dynamic neutron irradiation, electromagnetic force and thermal stress, and requires the insulator to have high shear strength and radiation resistance.

[0003] The superconducting coil in the nuclear fusion device needs to operate in a strong magnetic field, extremely low temperature, and high-energy particle radiation environment. The insulator wrapped around the superconducting coil needs to withstand the combined effects of electromagnetic force, thermal stress, and other multiple loads. Shear force is a key factor that causes the insulating layer to delaminate or break. Based on the dynamic and complex working conditions during the nuclear fusion reaction process, the traditional push-out type pure mechanical structure equipment can only perceive and measure the shear force limit changes of the superconducting coil insulator composite material from the perspective of contact mechanical stress. It cannot meet the detection requirements of the shear force limit of the superconducting coil insulator composite material under the multi-field coupling working conditions of the nuclear fusion reaction stage. The nuclear fusion superconducting coil equivalent shear force detection system under multi-element coupling working conditions uses an AI large model processing server to establish an electromagnetic coupling-thermal stress perception model for the electric insulator composite material of the superconducting coil under neutron irradiation conditions, thereby effectively predicting the equivalent shear force failure threshold of the superconducting coil insulator under transient plasma disruption and strengthening the limit shear force resistance performance of the superconducting coil insulator composite material. SUMMARY

[0004] To solve the above problems, the present application provides a nuclear fusion superconducting coil equivalent shear force detection system under multi-element coupling working conditions, which can solve the problem of insufficient high shear strength and radiation resistance of the nuclear fusion superconducting coil insulator composite material under extreme working conditions such as strong magnetic field, extremely low temperature, and neutron irradiation. The service life of the superconducting coil insulator composite material is greatly improved, and the time and technical cost of researchers are effectively reduced. It has the advantages of high system integration intelligence, simple structure, and high reliability.

[0005] To achieve the above purpose, the present application adopts the following technical solutions:

[0006] A nuclear fusion superconducting coil equivalent shear force detection system under multi-element coupling working conditions, comprising:

[0007] The ultra-low temperature charged condition generation module is used to simulate and verify the shear force changes caused by the deformation of the electrical insulation composite material of the superconducting coil cladding due to changes in the ultra-low temperature cloud field.

[0008] The magnetic levitation module is used to simulate and test the changes in shear force generated by the Ampere force formed after the superconducting conductor coil is energized and the alternating magnetic field formed by the superconducting coil magnet on the deformation of the superconducting coil's electrically insulating composite cladding.

[0009] The four-level magnetic field and neutron irradiation module is used to simulate and verify the equivalent shear changes of the superconducting coil's electrically insulating composite cladding under the dynamic magnetic field of the multi-level magnets in the tokamak nuclear fusion device and the process of neutron irradiation.

[0010] Beneficial effects:

[0011] This invention solves the problem of insufficient shear strength and radiation resistance of composite materials used in superconducting coil insulators under extreme conditions such as strong magnetic fields, extremely low temperatures, and neutron irradiation. It significantly improves the service life of superconducting coil insulator composite materials, effectively reducing the time and technical costs for researchers; it also boasts advantages such as high system integration intelligence, simple structure, and high reliability. Furthermore, this invention offers advantages such as simple system structure, convenient operation, ease of learning, speed and efficiency, and strong technical application. Attached Figure Description

[0012] The accompanying drawings, which are part of the specification of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention and do not constitute an improper limitation of the invention.

[0013] Figure 1 This is a schematic diagram of the magnetic coupling and neutron irradiation conditions of an equivalent shear force detection system for a nuclear fusion superconducting coil under multi-element coupling conditions, according to the present invention.

[0014] Figure 2 This is a schematic diagram of the cryogenic charged condition formation module of the equivalent shear force detection system under multi-element coupling conditions of a nuclear fusion superconducting coil according to the present invention.

[0015] Figure 3 This is a schematic diagram of the installation of a superconducting coil insulator sample for an equivalent shear force detection system under multi-element coupling conditions in nuclear fusion superconducting coils according to the present invention.

[0016] Figure 4 This is a schematic diagram of the superconducting coil insulator sample structure of the present invention.

[0017] In the figure, the reference numerals are as follows: 1-Lifting lug, 2-Superconducting liquid helium tube inlet female connector, 3-Superconducting liquid helium inlet tube, 41-Liquid helium inlet shunt plate, 5-Superconducting coil insulator sample, 42-Liquid helium outlet shunt plate, 6-Superconducting liquid helium outlet tube, 7-Superconducting liquid helium tube outlet female connector, 8-Superconducting liquid helium tube inlet male connector, 9-Superconducting cable liquid helium transfer hose, 10-Liquid helium storage tank, 11-Liquid helium circulation tube, 12-Liquid helium circulation pump, 13-Helium outlet hose, 14-Superconducting liquid helium tube outlet male connector, 15-Liquid helium circulation tube power distribution bridge, 16-Exchanger, 17-Processing server, 18-Multipolar magnetic field. 19-Mechanical support arm; 20-Lower bipolar magnetic field; 21-Upper bipolar magnetic field; 22-Upper bipolar magnetic field telescopic slide rail; 23-Bipolar magnetic field excitation power supply box; 24-Left quadrupole magnetic field; 25-Rear quadrupole magnetic field; 26-Left neutron irradiation probe connecting bearing sleeve; 27-Neutron irradiation probe; 28-Right neutron irradiation probe connecting bearing sleeve; 29-Nuclear magnetic resonance scanner; 30-Quadrupole magnetic field fixed support frame; 31-Right quadrupole magnetic field; 32-Front quadrupole magnetic field; 51-Superconducting coil liquid helium inlet pipe; 52-Armor; 53-Superconducting coil electrical insulation composite material cladding; 54-Superconducting coil liquid helium outlet pipe. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other. To achieve the above objectives, this invention adopts the following technical solution.

[0019] The present invention will be further described below with reference to specific embodiments.

[0020] This invention discloses an equivalent shear force detection system for a nuclear fusion superconducting coil under multi-coupling conditions. The invention simulates and verifies the deformation of the cladding electrical insulation composite material of the superconducting coil under various operating conditions, including cryogenic charging, magnetic levitation, four-level magnetic field, and neutron irradiation. The deformation is then scanned by a nuclear magnetic resonance scanner 29, and the scanned information is fed back to an AI large model processing server 17 via a multi-element signal exchange 16 to provide the shear force change results.

[0021] The equivalent shear force detection system under multi-element coupling conditions of nuclear fusion superconducting coils includes:

[0022] The ultra-low temperature charged condition generation module is used to simulate and verify the shear force changes caused by the deformation of the electrical insulation composite material of the superconducting coil cladding due to changes in the ultra-low temperature cloud field.

[0023] The magnetic levitation module is used to simulate and test the changes in shear force generated by the Ampere force formed after the superconducting conductor coil is energized and the alternating magnetic field formed by the superconducting coil magnet on the deformation of the superconducting coil's electrically insulating composite cladding.

[0024] The four-level magnetic field and neutron irradiation module is used to simulate and verify the equivalent shear changes of the superconducting coil's electrically insulating composite cladding under the dynamic magnetic field of the multi-level magnets in the tokamak nuclear fusion device and the process of neutron irradiation.

[0025] like Figure 2 The diagram shown is a schematic of the cryogenic electrification condition formation module of the present invention. The cryogenic electrification condition formation module specifically includes: Figure 3 As shown, the components connected in sequence are: superconducting liquid helium tube inlet female connector 2, superconducting liquid helium inlet tube 3, liquid helium inlet shunt plate 41, superconducting coil insulator sample 5, liquid helium outlet shunt plate 42, superconducting liquid helium outlet tube 6, superconducting liquid helium tube outlet female connector 7, superconducting liquid helium tube inlet male connector 8, superconducting cable liquid helium delivery hose 9, liquid helium storage tank 10, liquid helium circulation tube 11, liquid helium circulation pump 12, superconducting cable liquid helium delivery hose 13, and superconducting liquid helium tube outlet male connector 14; further including: liquid helium circulation tube power distribution bridge 15, multi-element signal exchanger 16, and AI large model processing server 17; such as Figure 4 As shown, the superconducting coil insulator sample 5 includes a superconducting coil liquid helium inlet pipe 51, a square protective armor for the superconducting coil cable 52, a superconducting coil electrical insulation composite material cladding 53, and a superconducting coil liquid helium outlet pipe 54. The lifting lug 1 is located on the superconducting liquid helium pipe inlet female connector 2 and is used to suspend the cryogenic energized working condition forming module.

[0026] Under cryogenic electrified conditions, the AI ​​large model processing server 17 activates the multi-signal exchange 16 to trigger the liquid helium circulation tube power supply bridge 15 to supply power to the embedded power supply liquid helium storage tank 10 and the liquid helium circulation pump 12. The liquid helium in the power supply liquid helium storage tank 10 is driven by the liquid helium circulation pump 12 to enter the connection between the superconducting liquid helium tube outlet female connector 7 and the superconducting liquid helium tube inlet male connector 8 through the superconducting liquid helium tube outlet pipe 6. After passing through the superconducting liquid helium outlet pipe 6, the liquid helium is sent to the liquid helium outlet splitter plate 42 and then split to enter the superconducting coil insulator sample 5 through the superconducting coil liquid helium inlet pipe 51. The liquid helium then flows out through the superconducting coil liquid helium outlet pipe 54 and enters the liquid helium inlet splitter plate 41. It then gathers in the superconducting liquid helium inlet pipe 3, and then flows through the connection between the superconducting liquid helium inlet female connector 2 and the superconducting liquid helium outlet male connector 14, and then returns to the liquid helium circulation pump 12 via the superconducting cable liquid helium delivery hose 13. The AI ​​large model processing server 17 activates the multi-element signal exchanger 16 to trigger the embedded power supply in the liquid helium storage tank 10 to supply power to the system through the power transmission and distribution bridge 15. After the superconducting coil insulator sample 5 obtains current under the ultra-low temperature condition of liquid helium 4K (-269℃), it forms a stable superconducting magnetic field.

[0027] Under ultra-low temperature conditions, the relationship between temperature difference and material volume shrinkage occurs. The temperature difference (ΔT=T1-T0) leads to material strain. ,

[0028] in, The coefficient of thermal expansion of the material. The elastic modulus of a material is given when the material is subjected to a temperature gradient or is constrained. Deformation due to differences in thermal expansion, where For displacement components, is the coordinate direction, where Shear modulus; The equivalent shear force was calculated by scanning sections of the superconducting coil electrical insulation composite cladding 53 in the superconducting coil insulator sample 5 before and after the cryogenic charged condition using nuclear magnetic resonance scanner 29 and then analyzing the changes in material microstructure.

[0029] Magnetic levitation module such as Figure 1As shown, under magnetic levitation conditions, the AI ​​large model processing server 17 supplies power to the lower bipolar magnetic field 20 and the upper bipolar magnetic field 21 through the multi-pole magnetic field transmission and distribution bridge 18 based on the data provided by the multi-electrode signal exchanger 16. The multi-pole magnetic field transmission and distribution bridge 18 supplies power to the upper bipolar magnetic field 21 through the bipolar magnetic field excitation power supply box 23. The superconducting coil insulator sample 5 is located between the lower bipolar magnetic field 20 and the upper bipolar magnetic field 21. The stable superconducting magnetic field formed by the superconducting coil insulator sample 5 under the ultra-low temperature charged condition causes the superconducting coil insulator sample 5 to levitate under the action of the magnetic moments of the lower bipolar magnetic field 20 and the upper bipolar magnetic field 21. The component 5 can achieve magnetic levitation under the action of the alternating magnetic field. The superconducting coil electrical insulation composite material cladding 53 impregnated by vacuum pressure in the superconducting coil insulator sample 5 undergoes magnetostriction. At the same time, due to the connection of the liquid helium pipeline, the composite material of the superconducting coil insulator sample 5 undergoes volume shrinkage due to temperature changes, resulting in shear force generated inside the composite material structure. The AI ​​large model processing server 17 supplies power to the lower bipolar magnetic field 20 and the upper bipolar magnetic field 21 through the multi-element signal exchanger 16 based on the data provided by the multi-element magnetic field transmission and distribution bridge 18. The stable superconducting magnetic field formed by the superconducting coil insulator sample 5 under the ultra-low temperature charged condition is suspended under the action of the magnetic moments of the lower bipolar magnetic field 20 and the upper bipolar magnetic field 21. The position of the upper bipolar magnetic field 21 is adjusted by the upper bipolar magnetic field telescopic slide rail 22, and the distance between the lower bipolar magnetic field 20 and the upper bipolar magnetic field 21 is adjusted by the multi-functional lifting and rotating mechanical support arm 19 so that the equivalent shear force of the superconducting coil insulator sample 5 in the longitudinal direction changes due to the change in the strength of the two-stage magnetic fields.

[0030] ,in, The equivalent shear force is given by K, a proportionality constant related to the electromagnetic properties of the material, ▽H, the magnetic field gradient, and J, the current density. After scanning and slicing the coil before and after the superconducting magnetic levitation condition using the nuclear magnetic resonance scanner 29, the shear force was calculated by comparing the structural changes of the superconducting coil electrical insulation composite cladding 53 in the superconducting coil insulator sample 5 using an AI large model analysis.

[0031] like Figure 1As shown, the quadrupole magnetic field and neutron irradiation module includes: a left quadrupole magnetic field 24, a rear quadrupole magnetic field 25, a left neutron irradiation probe 27 connected to the left neutron irradiation probe in the bearing sleeve 26, a right neutron irradiation probe connected to the right neutron irradiation probe in the bearing sleeve 28, a nuclear magnetic resonance scanner 29, a quadrupole magnetic field fixed support frame 30, a right quadrupole magnetic field 31, and a front quadrupole magnetic field 32. Under the quadrupole magnetic field condition, the AI ​​large model processing server 17 supplies power to the left quadrupole magnetic field 24, the rear quadrupole magnetic field 25, the right quadrupole magnetic field 31, and the front quadrupole magnetic field 32 respectively through the multi-pole magnetic field transmission and distribution bridge 18 based on the data provided by the multi-element signal exchanger 16. The stable superconducting magnetic field formed under the cryogenic electrified condition of the superconducting coil insulator sample 5 is acted upon by the magnetic moments of the lower bipolar magnetic field 20 and the upper bipolar magnetic field 21. At the same time, the superconducting coil insulator sample 5 is cryogenically electrified. The established stable superconducting magnetic field also interacts with the left quadrupole magnetic field 24, the rear quadrupole magnetic field 25, the right quadrupole magnetic field 31, and the front quadrupole magnetic field 32. This causes the superconducting coil insulator sample 5 to be subjected to the magnetic coupling effect of the transverse quadrupole magnetic field and the longitudinal bipolar magnetic field, forming an equivalent shear force. At the same time, the left neutron irradiation probe 27 is connected to the nuclear magnetic resonance scanner 29 through the left neutron irradiation probe connecting bearing sleeve 28. When the nuclear magnetic resonance scanner 29 rotates symmetrically to perform slice scanning on the superconducting coil insulator sample 5, the left neutron irradiation probe 27 and the right neutron radiation probe irradiate the superconducting coil insulator sample 5 to complete the working condition of the superconducting coil insulator sample 5 under the action of the transverse quadrupole magnetic field and the longitudinal bipolar magnetic field, and simultaneously subjected to neutron irradiation, so as to realize the true equivalent shear force of the superconducting coil insulator sample 5 under the multi-factor working condition of nuclear fusion reaction. The microstructure of the superconducting coil electrical insulation composite cladding 53 in the superconducting coil insulator sample 5 was analyzed by sectioning using a rotating nuclear magnetic resonance scanner 29. The shear force was then calculated by analyzing the changes in the microstructure of the superconducting coil electrical insulation composite cladding 53 using an AI large model.

[0032] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A system for detecting equivalent shear force under multi-element coupling conditions in nuclear fusion superconducting coils, characterized in that, include: The ultra-low temperature charged condition generation module is used to simulate and verify the shear force changes caused by the deformation of the electrical insulation composite material of the superconducting coil cladding due to changes in the ultra-low temperature cloud field. The magnetic levitation module is used to simulate and test the changes in shear force generated by the Ampere force formed when the superconducting conductor coil is energized and the alternating magnetic field generated by the superconducting coil magnet on the deformation of the superconducting coil's electrically insulating composite cladding. The four-level magnetic field and neutron irradiation module is used to simulate and verify the equivalent shear changes of the superconducting coil electrical insulation composite cladding under the dynamic magnetic field of the multi-level magnet in the tokamak nuclear fusion device and the process of neutron irradiation. The cryogenic electrification mode forming module includes: a superconducting liquid helium tube inlet female connector, a superconducting liquid helium inlet tube, a liquid helium inlet shunt plate, a superconducting coil insulator sample, a liquid helium outlet shunt plate, a superconducting liquid helium outlet tube, a superconducting liquid helium tube outlet female connector, a superconducting liquid helium tube inlet male connector, a superconducting cable liquid helium delivery hose, an embedded power supply liquid helium storage tank, a liquid helium circulation tube, a liquid helium circulation pump, a superconducting cable liquid helium delivery hose, and a superconducting liquid helium tube outlet male connector; it further includes a liquid helium circulation tube power distribution bridge, a multi-element signal exchanger, an AI large model processing server, and a multi-pole magnetic field power distribution bridge. The magnetic levitation module includes: a multi-functional lifting and rotating mechanical support arm, an upper bipolar magnetic field, a lower bipolar magnetic field, a bipolar magnetic field telescopic slide rail, and a bipolar magnetic field excitation power supply box. The four-level magnetic field and neutron radiation module includes: front four-level magnetic field, rear four-level magnetic field, left neutron irradiation probe connecting bearing sleeve, left neutron irradiation probe, right neutron irradiation probe connecting bearing sleeve, right neutron irradiation probe, nuclear magnetic resonance scanner, four-level magnetic field fixed support frame, left four-level magnetic field, and right four-level magnetic field. The AI ​​large-scale model processing server uses a multi-signal exchange to trigger the liquid helium circulation tube power supply bridge to power the embedded power supply liquid helium storage tank and liquid helium circulation pump. Liquid helium in the power supply liquid helium storage tank is driven by the liquid helium circulation pump through the superconducting cable liquid helium delivery hose into the connection between the female and male inlet connectors of the superconducting liquid helium tube. After passing through the superconducting liquid helium inlet pipe, the liquid helium is sent to the liquid helium inlet split plate and then split through the superconducting coil liquid helium inlet pipe into the superconducting coil insulator sample. After flowing out through the superconducting coil liquid helium outlet pipe, it enters the liquid helium outlet split plate, then gathers in the superconducting liquid helium inlet pipe, and then passes through the connection between the female and male outlet connectors of the superconducting liquid helium tube and returns to the liquid helium circulation pump through the superconducting cable liquid helium delivery tube. The AI ​​large-scale model processing server uses a multi-signal exchange to trigger the embedded power supply in the liquid helium storage tank to power the system through the power supply bridge. After the superconducting coil insulator sample receives current under ultra-low temperature conditions, it forms a stable superconducting magnetic field. After the superconducting coil insulator sample is stably subjected to a superconducting magnetic field under cryogenic electrification conditions, the AI ​​large model processing server supplies power to the upper and lower bipolar magnetic fields through a multi-element signal exchanger based on the data provided by the multi-element signal exchanger. Under the action of the magnetic moments of the upper and lower bipolar magnetic fields, the superconducting coil insulator sample is suspended, and the superconducting coil electrical insulation composite cladding undergoes magnetostriction. At the same time, the superconducting coil electrical insulation composite cladding undergoes volume shrinkage due to temperature changes, resulting in internal shear forces. The effective shear force of the superconducting coil insulator sample in the longitudinal direction is changed by adjusting the distance between the upper and lower bipolar magnetic fields through the multi-functional lifting and rotating mechanical support arm. Under the quadrupole magnetic field condition, the AI ​​large model processing server supplies power to the left quadrupole magnetic field, the rear quadrupole magnetic field, the right quadrupole magnetic field, and the front quadrupole magnetic field respectively through the multi-pole magnetic field transmission and distribution bridge based on the data provided by the multi-element signal exchanger. The stable superconducting magnetic field formed under the cryogenic charging condition of the superconducting coil insulator sample is acted upon by the magnetic moments of the lower bipolar magnetic field and the upper bipolar magnetic field. At the same time, the stable superconducting magnetic field formed under the cryogenic charging condition of the superconducting coil insulator sample also interacts with the left quadrupole magnetic field, the rear quadrupole magnetic field, the right quadrupole magnetic field, and the front quadrupole magnetic field, so that the superconducting coil insulator sample is subjected to the magnetic coupling effect of the transverse quadrupole magnetic field and the longitudinal bipolar magnetic field to form an equivalent shear force.

2. The equivalent shear force detection system under multi-element coupling conditions of a nuclear fusion superconducting coil according to claim 1, characterized in that, The left neutron irradiation probe is connected to the nuclear magnetic resonance scanner via a connecting bearing sleeve. The left neutron irradiation probe and the right neutron radiation probe irradiate the superconducting coil insulator sample to complete the working condition of the superconducting coil insulator sample being subjected to neutron irradiation under the action of a transverse quadrupole magnetic field and a longitudinal bipolar magnetic field, so as to realize the true equivalent shear force of the superconducting coil insulator sample under the multi-factor working condition of nuclear fusion reaction.

3. The equivalent shear force detection system under multi-element coupling conditions of a nuclear fusion superconducting coil according to claim 1, characterized in that, Under ultra-low temperature conditions, temperature differences cause material strain: ， in, For temperature difference, The coefficient of thermal expansion of the material. The elastic modulus of a material is given when the material is subjected to a temperature gradient or is constrained. Deformation due to differences in thermal expansion, where For displacement components, is the coordinate direction, where Shear modulus; This is the equivalent shear force.

4. The equivalent shear force detection system under multi-element coupling conditions of a nuclear fusion superconducting coil according to claim 1, characterized in that, The distance between the lower and upper bipolar magnetic fields causes the equivalent shear force in the longitudinal direction of the superconducting coil insulator sample to vary with the intensity of the bipolar magnetic fields. ,in, For the equivalent shear force, K is a proportionality constant related to the electromagnetic properties of the material, ▽H is the magnetic field gradient, and J is the current density.

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