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Temp control electric heating cable and producing method

A heat tracing cable and metal conductive wire technology, applied in the cable field, can solve the problems of low heat tracing temperature, unstable performance, large starting current, etc., and achieve the effects of rapid heating and starting, high quality stability, and small starting current.

Inactive Publication Date: 2006-08-30
沈阳瑞华特种电缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the 1990s, some scientific research institutes in our country began to develop this product, but the starting current was large, the heating temperature was low, and the performance was unstable.
Although several companies are in trial production, due to the performance of the product itself, it has affected its promotion in the market

Method used

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  • Temp control electric heating cable and producing method
  • Temp control electric heating cable and producing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The temperature-controlled heating cable includes two metal conductive wires 1 arranged in parallel, a PCT layer 2, an insulating layer 3, a shielding layer 4 and a sheath layer 5. The metal conductive wire 1 is an annealed galvanized copper wire. A PCT layer 2 is evenly extruded on two metal conducting wires 1 arranged in parallel. The insulating layer 3 is wrapped on the PCT layer 2 , the shielding layer 4 is wrapped on the insulating layer 3 , and the sheath layer 5 is set on the shielding layer 4 .

Embodiment 2

[0037] PCT material is composed of 9.8Kg high-pressure low-density polyethylene, 1.9kg acetylene carbon ink, 1.55kg zirconia, 0.019kg 4.4'-sulfurized bis(6-tert-butyl-3 methylphenol) and 0.195kg trimethylol propane Made of trimethacrylate.

Embodiment 3

[0039] PCT material is made of 10.2kg high pressure low density polyethylene, 2.1kg acetylene carbon black, 1.57kg zirconia, 0.019kg 4.4'-bissulfide and 0.198kg trimethylol propane trimethacrylate.

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Abstract

This invention relates to a temperature controlled heat accompany cable including two parallel metal conduction leads characterizing in squeezing a PCT layer uniformly on the two leads, setting an insulation layer on the PCT layer, a shield layer on the insulation layer and a jacket on the shield layer. Advantages: 1, realizing continuous production of long temperature controlled heat-accompany cables with stable quality, 2, small starting current, 3, uniform temperature, 4, electric energy saving, quick rising of temperature, 6, low cost in mounting and moving, 7, no environment pollution.

Description

(1) Technical field [0001] The invention relates to a cable, in particular to a temperature-controlled heat tracing cable. (2) Background technology [0002] Temperature-controlled heating cables first appeared in the United States in the early 1980s. At that time, they were mainly used in the petroleum and petrochemical industry. The purpose of reducing conveying resistance. At that time, the world was undergoing a stage of continuous change in the petrochemical industry. New technologies and new products are constantly being applied, and this product is widely and urgently needed by the petroleum and petrochemical industry. It soon shocked the related industries in various countries. Temperature-controlled heating cable, also known as self-limiting temperature heating cable or self-regulating temperature electric heating cable, is a strip-shaped temperature-limiting heating cable whose electric heating power is self-adjusting with the system temperature. Different from...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/56H05B1/00H05B3/10H05B3/02
Inventor 邹振轩
Owner 沈阳瑞华特种电缆有限公司
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