Superconducting coil device with supporting structure

Abstract

The invention provides a superconducting coil device with a supporting structure and relates to the technical field of fusion, and the problem that the plasma inside a superconducting coil with a supporting structure cannot form a field reverse configuration and so the plasma cannot realize fusion reaction is solved. The superconducting coil device with the supporting structure is disposed in a vacuum chamber and includes a superconducting coil unit and a bracket unit, the superconducting coil unit includes a plurality of sub-superconducting coils, the bracket unit includes a plurality of thebracket rings which fix the sub-superconducting coils and connecting rods passing through the bracket rings, and two ends of the connecting rods are fixed to the inner walls of the vacuum chamber. Thesuperconducting coil device is used for forming an effective field reverse configuration.

Description

technical field [0001] The invention relates to the field of fusion technology, in particular to a superconducting coil device with a supporting structure. Background technique [0002] With the further demand of human beings for clean energy, the fusion method of field reverse configuration (FRC, Field Reverse Configuration) has high plasma β value, high energy density, simple magnetic field topology, transferability, and mature diagnostic methods. One of the preferred technical solutions for compact fusion reactors. There are many methods to form the anti-field configuration, such as the θ-pinch method, spheromak merging, collision merging, rotating magnetic fields and so on. [0003] Among them, the rotating magnetic field-reverse field configuration (RMF-FRC) scheme uses a radio frequency antenna to generate a rotating magnetic field, the rotating magnetic field drives the plasma movement, the magnetic flux maintains the coil to generate an induced current, and forms a ...

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Problems solved by technology

[0004] In the prior art, the magnetic flux holding coil uses a copper coil. Due to the resistance of the copper coil itself, the saturation time of the induced current generated by the copper coil is very short (within 0.1s), which is much lower than the saturation time required for the rotating magnetic field-anti-field configuration. (0.5s~3s), the internal plasma cannot form an anti-field configuration, and thus the fusion reaction cannot be realized

Although the superconducting coil has negligible resistance at a certain temperature (for example, 80K, K refers to the Kelvin unit), it can have a long saturation time, but it cannot be fixed inside the vacuum chamber, so it cannot form an effective anti-field configuration. Therefore, how to Fixing the superconducting coil in the vacuum chamber to form an effective anti-field configuration is a technical problem that needs to be solved

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