CN203435175U

CN203435175U - Heat-tracing cable for large-scale harbor conveying pipeline

Info

Publication number: CN203435175U
Application number: CN201320477145.1U
Authority: CN
Inventors: 孙伟; 戴礼云
Original assignee: Wuhu Hengxin Cable Co Ltd
Current assignee: Wuhu Hengxin Cable Co Ltd
Priority date: 2013-08-07
Filing date: 2013-08-07
Publication date: 2014-02-12
Anticipated expiration: 2023-08-07

Abstract

The utility model discloses a heat-tracing cable for a large-scale harbor conveying pipeline. The heat-tracing cable comprises a heating wire, a filling layer, an armor layer and a sheath layer, wherein the filling layer, the armor layer and the sheath layer are successively wrapped on the outside of the heating wire from inside to outside. The heating wire is composed of a copper heating conductor, an insulating layer 1, an insulating layer 2 and an insulating layer 3, wherein the insulating layer 1, the insulating layer 2 and the insulating layer 3 are successively wrapped on the outside of the copper heating conductor from inside to outside. The insulating layer 1 is made of the Teflon material, and the insulating layer 2 is made of the fluorinated ethylene-propylene material. The insulating layer 3 is made of the polytetrafluoroethylene material. According to the technical scheme of the utility model, the heat-tracing cable for the large-scale harbor conveying pipeline is adapted to the disposable heat-tracing process of a large-scale harbor conveying pipeline and is long in application length. Meanwhile, since fewer power supply points and fewer power distribution systems are adopted, the cost is effectively reduced. In addition, the heat-tracing cable is stable in heating effect and uniform in power distribution, wherein only one control loop is needed.

Description

Major port conveyance conduit accompanying-heat cable

Technical field

The utility model relates to cable product technical field, is specifically related to a kind of major port conveyance conduit accompanying-heat cable.

Background technology

There is the short problem of length of using in the hot normally used accompanying-heat cable of major port long-distance transmission pipeline companion, therefore when laying accompanying-heat cable, major port need to lay power supply power cable simultaneously, and the power interface of an accompanying-heat cable just need to be set at a certain distance, therefore cause major port long-distance transmission pipeline to accompany hot cost higher.

Summary of the invention

The purpose of this utility model is to provide a kind of major port conveyance conduit accompanying-heat cable, applicable sexual partner's heat of major port long-distance transmission pipeline, use length is long, thereby saves power supply point and distribution system, reduces major port long-distance transmission pipeline and accompanies hot cost.

To achieve these goals, the technical scheme the utility model proposes is:

A kind of major port conveyance conduit accompanying-heat cable, by heating-wire and the packed layer, armour, the restrictive coating that are wrapped in successively from the inside to the outside outside described heating-wire form, described heating-wire comprises copper heating conductor and is wrapped in successively from the inside to the outside insulation one outside described heating conductor, insulate two, insulate three, described insulation one is made for Teflon material, described insulation two is made for polyfluorinated ethylene material, and described insulation three is made for polytetrafluoroethylmaterial material.Describedly three-layer insulatedly heat can be effectively conducted, the useful life of insulating barrier can be extended simultaneously, in the long-time downward long ageing time of high temperature action.

As the further improved major port conveyance conduit accompanying-heat cable of the utility model, described packed layer is that heat conduction carbon fibre material is made.Described structure can improve the mechanical strength of cable, selects material that conductive coefficient is high to guarantee companion's thermal effect of cable simultaneously.

As the further improved major port conveyance conduit accompanying-heat cable of the utility model, described restrictive coating is that polytetrafluoroethylmaterial material is made.Described material can heat-resisting, ageing-resistant, acid and alkali-resistance, and cost is lower simultaneously.

Major port conveyance conduit accompanying-heat cable provided by the utility model, adopt stranded conductor, according to the resistance of pipeline needed companion's hot temperature degree and power designs, calculating conductor, by applying rated voltage to stranded conductor, utilize conductor temp .-elevating power to generate heat, reach the hot object of insulation companion.Applicable sexual partner's heat of major port long-distance transmission pipeline, is used length long, has saved power supply point and distribution system, has effectively reduced cost; And heating is stable, and power branch is even, only need a control loop.

Accompanying drawing explanation

Fig. 1, major port conveyance conduit heat tracing cable structure schematic diagram.

1 is restrictive coating, and 2 is armour, and 3 is packed layer, 4 for insulation three, 5 for insulation two, 6 for insulation one, 7 be heating conductor.

Embodiment

In order to deepen, to understanding of the present utility model, below in conjunction with drawings and Examples, the utility model to be described in further detail, this embodiment only, for explaining the utility model, does not form the restriction to the utility model protection range.

As shown in Figure 1, the major port conveyance conduit accompanying-heat cable that the present embodiment provides, by heating-wire and the packed layer 3, armour 2, the restrictive coating 1 that are wrapped in successively from the inside to the outside outside described heating-wire form, described heating-wire comprises copper heating conductor 7 and is wrapped in successively from the inside to the outside insulation 1 outside described heating conductor 7, insulate 25, insulate 34, described insulation 1 is made for Teflon material, described insulation 25 is made for polyfluorinated ethylene material, and described insulation 34 is made for polytetrafluoroethylmaterial material.Described packed layer 3 is made for heat conduction carbon fibre material.Described restrictive coating 1 is made for polytetrafluoroethylmaterial material.

Claims

1. a major port conveyance conduit accompanying-heat cable, it is characterized in that: by heating-wire, be wrapped in successively from the inside to the outside the packed layer (3) outside described heating-wire, armour (2), restrictive coating (1) forms, described heating-wire comprises copper heating conductor (7) and is wrapped in successively from the inside to the outside the outer insulation one (6) of described heating conductor (7), insulation two (5), insulation three (4), described insulation one (6) is made for Teflon material, described insulation two (5) is made for polyfluorinated ethylene material, described insulation three (4) is made for polytetrafluoroethylmaterial material.

2. major port conveyance conduit accompanying-heat cable according to claim 1, is characterized in that: described packed layer (3) is made for heat conduction carbon fibre material.

3. major port conveyance conduit accompanying-heat cable according to claim 1, is characterized in that: described restrictive coating (1) is made for polytetrafluoroethylmaterial material.