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A parallel constant power electric heating cable for pipelines

A technology of electric heating cable and constant power, which is applied in the direction of heating element shape, heating element material, etc., can solve the problems of electric heating cable that are more harmful, do not have anti-corrosion performance, affect the performance of electric heating cable, etc., and achieve uniform mixing performance Good, guaranteed physical and mechanical properties, enhanced mechanical properties

Active Publication Date: 2019-07-05
ANBANG ELECTRICAL GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing electric heating cables still have shortcomings such as insufficient overall strength and no anti-corrosion performance. Especially in cold seasons, rodents are more harmful to electric heating cables. The biting of the sheath will directly affect the performance of the electric heating cable. After biting, the liquid in the mouth remains on the electric heating cable, which will corrode the reinforced sheath. Although the electric heating cable has been prepared at present, it still cannot meet the demand. How to prepare a Cold resistance, good corrosion resistance, and excellent mechanical properties of parallel constant power electric heating cables for pipelines have become a technical problem that needs to be solved at present.

Method used

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  • A parallel constant power electric heating cable for pipelines
  • A parallel constant power electric heating cable for pipelines

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Effect test

Embodiment 1

[0017] refer to figure 1 , a parallel constant power electric heating cable for pipelines, including a wire core, the wire core is composed of two wires 1 arranged in parallel and an inner insulating layer 2 covered by each wire 1, and the outer inner insulating layer 2 Coated with an inner sheath layer 3, a heating wire 4 is wound outside the inner sheath layer 3, and the heating wire 4 is connected to the wire 1 at a certain distance, and an outer sheath 5 is coated on the outer heating wire 4, and an outer sheath 5 is wrapped around the outer sheath 5 A metal braiding layer 6 is braided outside, and a reinforcing sheath 7 is covered on the metal braiding layer 6, and the reinforcing sheath 7 is made of silicon rubber.

[0018] The raw materials of the silicone rubber include by weight: 30 parts of hydroxyl-terminated fluorine-containing polyester polysiloxane, 20 parts of nitrile rubber, 5 parts of metallocene polyethylene, 1.2 parts of aromatic oil, 0.5 part of naphthenic ...

Embodiment 2

[0020] A parallel constant power electric heating cable for pipelines, including a wire core, the wire core is composed of two wires 1 arranged in parallel and an inner insulating layer 2 covered by each wire 1, and the inner insulating layer 2 is wrapped Covered with an inner sheath layer 3, a heating wire 4 is wound outside the inner sheath layer 3, and the heating wire 4 is connected to the wire 1 at a certain distance. A metal braiding layer 6 is braided, and a reinforcing sheath 7 is covered outside the metal braiding layer 6, and the reinforcing sheath 7 is made of silicon rubber.

[0021] The raw materials of the silicone rubber include by weight: 40 parts of hydroxyl-terminated fluorine-containing polyester polysiloxane, 15 parts of nitrile rubber, 15 parts of metallocene polyethylene, 0.5 part of aromatic oil, 1 part of naphthenic oil, chlorine 1 part of paraffin wax, 15 parts of titanium dioxide, 20 parts of nano-calcium, 20 parts of modified graphite, 5 parts of dia...

Embodiment 3

[0023] A parallel constant power electric heating cable for pipelines, including a wire core, the wire core is composed of two wires 1 arranged in parallel and an inner insulating layer 2 covered by each wire 1, and the inner insulating layer 2 is wrapped Covered with an inner sheath layer 3, a heating wire 4 is wound outside the inner sheath layer 3, and the heating wire 4 is connected to the wire 1 at a certain distance. A metal braiding layer 6 is braided, and a reinforcing sheath 7 is covered outside the metal braiding layer 6, and the reinforcing sheath 7 is made of silicon rubber.

[0024] The raw materials of the silicone rubber include by weight: 32 parts of hydroxyl-terminated fluorine-containing polyester polysiloxane, 18 parts of nitrile rubber, 10 parts of metallocene polyethylene, 1.15 parts of aromatic oil, 0.6 part of naphthenic oil, chlorine 1.4 parts of paraffin wax, 5 parts of titanium dioxide, 24 parts of nano-calcium, 16 parts of modified graphite, 8 parts ...

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Abstract

The invention discloses a parallel power-constant electric tracing band for pipeline. the electric tracing band comprises a core, the core is composed of two leads that are arranged in parallel and inner insulating layers that wrap the leads respectively, the inner insulating layers are wrapped in an inner sheath layer, a heating wire is wound around the outside of the inner sheath layer, the heating wire is connected with the leads by being separated from the leads for certain distance, the heating wire is wrapped in an oversheath, a metal braided layer is braided outside the oversheath, and the metal braided layer is wrapped in a reinforcing sheath which is made of silicone rubber. The parallel power-constant electric tracing band for pipeline is cold resistant, high in corrosion resistance and mechanical properties, and the structure of the band is not damaged even if the band is bitten strongly.

Description

technical field [0001] The invention relates to the technical field of electric heating cables, in particular to a parallel constant power electric heating cable for pipelines. Background technique [0002] Electric heating cable is a new type of high-tech product. Since it entered the application field in the 1970s, it has been widely used in the transportation of liquid objects in pipelines and the antifreeze and heat preservation of tanks, maintaining process temperature, heating roads, ramps, crosswalks, Eaves and floors etc. However, the existing electric heating cables still have shortcomings such as insufficient overall strength and no anti-corrosion performance. Especially in cold seasons, rodents are more harmful to electric heating cables. The biting of the sheath will directly affect the performance of the electric heating cable. After biting, the liquid in the mouth remains on the electric heating cable, which will corrode the reinforced sheath. Although the ele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B3/56H05B3/10C08L83/06C08L83/08C08L9/02C08L23/06C08K13/06C08K9/04C08K3/22C08K3/08C08K3/04C08K3/34C08K5/098
Inventor 卜基峰陈更芬姚月凤
Owner ANBANG ELECTRICAL GRP