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High-temperature resistant and radiation-resistant inorganic insulating hollow cable as well as manufacturing method and mold thereof

An inorganic insulation and radiation-resistant technology, applied in the direction of insulated cables, insulated conductors, rigid tube cables, etc., can solve the problems of unusable, low ambient temperature, and poor temperature control effect, and achieve the effect of good electrical performance.

Active Publication Date: 2011-06-29
久盛电气股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For cables whose length is much greater than the diameter, the air convection is actually realized by the density difference between the hot and cold air to cool the conductor, and such an effect is negligible. Therefore, the temperature control effect of the invention is not good. The ambient temperature is not high
This invention obviously cannot be used in nuclear power plants, nuclear fusion devices, aerospace and other fields where the temperature is as high as 1000°C and there is strong radiation.

Method used

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  • High-temperature resistant and radiation-resistant inorganic insulating hollow cable as well as manufacturing method and mold thereof
  • High-temperature resistant and radiation-resistant inorganic insulating hollow cable as well as manufacturing method and mold thereof
  • High-temperature resistant and radiation-resistant inorganic insulating hollow cable as well as manufacturing method and mold thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 As shown, the high temperature and radiation resistant inorganic insulated hollow cable is composed of a conductor 1, an insulating layer 2 and a sheath layer 3 in sequence from the inside to the outside. The conductor 1 is a single-layer hollow seamless copper tube, the insulating layer 2 is a magnesium oxide insulating layer, and the sheath layer 3 is a stainless steel tube.

[0035] Such as figure 2 Shown, a kind of mold that is used to manufacture above-mentioned cable, it comprises annular outer mold 4 and cylindrical inner mold 5, and the inner edge of the entrance of said outer mold is an inclined plane, and this inclined plane and outer mold edge mouth plane 41 The included angle is 108°, and the slope is connected with the outer mold edge plane 41 with a smooth transition of an arc; the inner mold 5 is matched with the outer mold 4 and free from the outer mold 4, and the inner mold 5 is cylindrical The two ends have different diameters and a...

Embodiment 2

[0052] Such as figure 1 As shown, the high temperature and radiation resistant inorganic insulated hollow cable is composed of a conductor 1, an insulating layer 2 and a sheath layer 3 in sequence from the inside to the outside. The conductor 1 is a pure nickel tube, the insulating layer 2 is an alumina insulating layer, and the sheath layer 3 is a stainless steel tube.

[0053] Such as figure 2 Shown, a kind of mold that is used to manufacture above-mentioned cable, it comprises annular outer mold 4 and cylindrical inner mold 5, and the inner edge of the entrance of said outer mold is an inclined plane, and this inclined plane and outer mold edge mouth plane 41 The included angle is 112°, and the inclined plane is connected with the outer mold edge plane 41 with an arc smooth transition; the inner mold 5 is matched with the outer mold 4 and is free from the outer mold 4, and the inner mold 5 is cylindrical The slopes with different diameters at both ends and a 7° slope tra...

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Abstract

The invention relates to a high-temperature resistant and radiation-resistant inorganic insulating hollow cable as well as a manufacturing method and mold thereof, belonging to the technical field of power transmission cables and high-temperature winding lines. The high-temperature resistant and radiation-resistant inorganic insulatinghollow cable comprises a conductor, an insulating layer and a sheath layer, wherein the insulating layer is coated outside the conductor, and the sheath layer is coated outside the insulating layer. The conductor is a hollow metal tube; and the insulating layer is prepared from one or mixture of more of magnesium oxide, aluminum oxide or silicon dioxide with the purity above 99% and the grain size below 180 mum. The high-temperature resistant and radiation resistant inorganic insulating hollow cable provided by the invention has good electrical performance; the conductor is filled with a refrigerant so that the conductor can work for a long time at the temperature over 1000 DEG C; and the cable is suitable for the fields of nuclear stations, nuclear fusion devices, space flight and aviation and the like.

Description

technical field [0001] The invention relates to a high-temperature-resistant and radiation-resistant inorganic insulated hollow cable, a manufacturing method and a mould, belonging to the technical field of power transmission cables and high-temperature winding wires. Background technique [0002] As a medium for transmitting power, the cable requires low loss, but when the temperature of the cable rises, the power loss becomes serious. Therefore, how to control the temperature of the cable is the main subject of those who are engaged in the research of the technical field of power transmission cables. The Chinese invention patent with the application number of 200910068728.7 discloses a hollow self-cooling cable, which is a hollow cable made by winding a cable conductor on the outer layer of a metal spiral hose. The conductors of this cable are extruded with plastic insulation and sheath. During construction, install one end of the cable on the top of the cable shaft in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/16H01B7/42H01B13/004
Inventor 罗才谟张建华姚坤方张水荣
Owner 久盛电气股份有限公司
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