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Integral pre-tightening insulation method for central cylinder of plate-type annular 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: 2019-05-14
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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  • Integral pre-tightening insulation method for central cylinder of plate-type annular field coil
  • Integral pre-tightening insulation method for central cylinder of plate-type annular 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 field of an electrical equipment insulation process, and particularly discloses an integral pre-tightening insulation method for a central cylinder of a plate-type annularfield coil. The integral pre-tightening insulation method comprises the steps of winding an impregnation glass tape around a workpiece, installing a heat preservation tent at the periphery of the workpiece, blowing air to the tent by a fan, performing heating and cooling, and finally, turning a cured fiber glass insulation cylinder. Compared with the prior art, the method has the advantages thatthe defect that the pre-stress function cannot be achieved by an existing insulation cylinder is overcome, and the pre-stress glass steel insulation cylinder obtained by production has relatively highpre-stress and also has good insulation effect; with the adoption of HW200-type impregnation glass tape, the pre-stress of the fiber glass insulation cylinder formed after curing can conform to requirement; and meanwhile, by the pre-stress fiber glass insulation cylinder, a favorable insulation effect between the coil and other parts of the device can be achieved.

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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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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