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A method for integral pre-tightening insulation of the central cylinder of the plate-type toroidal field coil

A field coil and hoop technology, applied in the field of pre-tightening process, to achieve the effect of good insulation effect and good insulation effect

Active Publication Date: 2021-08-17
SOUTHWESTERN INST OF PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, it is difficult to achieve these two purposes at the same time by using the insulating cylinder method to preload

Method used

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  • A method for integral pre-tightening insulation of the central cylinder of the plate-type toroidal field coil
  • A method for integral pre-tightening insulation of the central cylinder of the plate-type toroidal field coil

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Embodiment Construction

[0023] The present invention will be further described below by means of the accompanying drawings and specific embodiments.

[0024] The essence of the method is to install the prestressed fiberglass insulation cylinder on the workpiece.

[0025] The central cylinder of the plate-type toroidal field coil is composed of 20 central section components 1, which become the workpiece in this method. The 20 central section components are combined into a cylinder, and the components are filled with epoxy plates and epoxy glue. The height of the central section assembly is 5.08 meters, the height of the prestressed insulating cylinder 2 is 3.8 meters, the inner diameter is 1.35 meters, and the net thickness is 25 mm.

[0026] The concrete steps of this method are as follows:

[0027] 1) Place a single disc of high-strength dipped glass ribbon (the preferred model is HW200, with a thickness of 0.3mm and a width of 50mm) on the tension machine;

[0028] 2) Fix and install the workpiec...

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Abstract

The invention belongs to the technical field of electrical equipment insulation technology, and specifically discloses a method for integrally pre-tightening the central column of a hoop field coil in the plate type, wrapping a dipped glass ribbon around the workpiece, installing a thermal insulation tent on the periphery of the workpiece, and blowing the tent with a fan , then heating, then cooling down, and finally turning the cured FRP insulating cylinder. Compared with the prior art, this method solves the defect that the existing insulating cylinder cannot achieve the prestressing function, and the produced prestressed FRP insulating cylinder has High prestress and good insulation effect at the same time. The HW200 type impregnated glass ribbon is used, so that the prestress of the glass fiber reinforced plastic insulating cylinder formed after curing can meet the requirements. At the same time, the prestressed glass fiber reinforced plastic insulating cylinder can provide a good insulating effect between the coil and other parts of the device.

Description

technical field [0001] The invention belongs to the technical field of electrical equipment insulation technology, and in particular relates to a pre-tightening process method for a central column of a plate-type hoop field coil of a conventional magnet tokamak device. Background technique [0002] A tokamak device is a fusion device that uses a magnetic field to confine plasma to achieve controlled nuclear fusion reactions. At its center is a circular vacuum chamber with coils wound around it. The coil is energized to generate a huge magnetic field, which is used to confine the plasma, and various auxiliary heating methods are used to make the plasma reach a high temperature and high pressure state, so as to achieve the purpose of nuclear fusion reaction. Coils are divided into conventional magnet coils and superconducting magnet coils. Conventional magnet coils are mainly made of copper and copper alloy materials as conductors. The central cylinder of the plate-type tor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F41/12H01F5/06G21B1/05
CPCY02E30/10
Inventor 邱银邹晖刘健李广生单亚农
Owner SOUTHWESTERN INST OF PHYSICS
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