CN106448865A - High temperature resistant special cable - Google Patents

Abstract

The invention discloses a high temperature resistant type special cable including a cable core, a high temperature resistant layer, a fire resistant insulation layer, a steel belt armor layer and a jacket layer, and the cable core is uniformly covered with the high temperature resistant layer, and a filler layer is arranged between the fire resistant insulation layer and a fire resistant wrapping belt. The fire resistant wrapping belt is coaxially uniformly coated with the steel belt armor layer and a coating layer is uniformly applied outside the steel belt armor layer. The coating layer is uniformly coated with a heat insulating layer, the material of the heat insulating layer is a nanometer microporous insulating material, and the insulating layer is uniformly coated with the jacket layer. The high temperature resistant type special cable further improves the high temperature performance of the cable by covering the high temperature layer and the fire resistant insulation layer in succession outside the core of the cable core, and has the function of flame-retardant and heat insulation, and is safe and reliable, and by providing the steel belt armor layer, the mechanical strength of the cable and the anti-erosion ability are improved, the tensile strength and compressive strength are improved as well. In addition, the high temperature resistant type special cable is easy to promote and apply.

Description

A high temperature resistant special cable

technical field

The invention relates to the technical field of special cables, in particular to a high temperature resistant special cable.

Background technique

A cable is usually made of one or more mutually insulated conductors and an outer insulating layer, and is a wire that transmits power or information from one place to another. Compared with ordinary cables, special cables are cables with unique properties, special structures and uses, and can be used in specific occasions, such as: high temperature resistance, acid and alkali resistance, termite resistance, and wires used in ships, aircraft, nuclear power plants, etc. cable.

With the development of the economy and the advancement of science and technology, the rapid development of the cable industry has been promoted, making it the second largest industry in my country after the automobile industry. However, most of the existing special cables have many defects in the materials used and the structural design, so that their performances are not easy to meet the requirements of use, and they need to go through multiple tests, which consume a lot of manpower and material resources. resulting in higher costs.

Contents of the invention

The object of the present invention is to provide a high-temperature-resistant special cable, which has reasonable structure design, good high-temperature resistance, can work continuously at high temperature for a long time, and has a long service life, which solves the problems raised in the above-mentioned background technology.

In order to achieve the above object, the present invention provides the following technical solutions: a high temperature resistant special cable, including a cable core, a high temperature resistant layer, a refractory insulating layer, a steel tape armor layer and a sheath layer, the outer coaxial and uniform Coated with a high temperature resistant layer, the outer coaxial of the high temperature resistant layer is evenly covered with a fire-resistant insulating layer, a filling layer is provided between the fire-resistant insulating layer and the fireproof wrapping tape, and the outer coaxial of the fireproof wrapping tape is uniform Covered with a steel tape armor layer, the steel tape armor layer is evenly coated with a coating, and the coating is evenly covered with a heat insulation layer, and the material of the heat insulation layer is nano-microporous heat insulation material , a sheath layer is evenly coated on the outside of the heat insulation layer.

Preferably, the cable core is composed of several conductors, and the cross section of the cable core is circular.

Preferably, the material of the fire-resistant insulating layer is polyvinyl chloride or polyethylene.

Preferably, the filling layer is filled with refractory filling fibers.

Preferably, the material of the sheath layer is one or more of high temperature resistant nano-alumina, nano-titanium oxide and PET materials.

Compared with the prior art, the beneficial effects of the present invention are as follows:

1. The present invention greatly improves the high temperature resistance performance of the cable by sequentially coating the cable core with a high temperature resistant layer and a fire resistant insulating layer, and also has the function of flame retardant and heat insulation, which is convenient and practical.

2. The present invention not only increases the mechanical strength of the cable, improves the anti-corrosion ability, but also increases the tensile strength and compressive strength by setting the steel tape armor layer.

3. The present invention further improves the high temperature resistance performance of the cable by providing a coating, a heat insulation layer and a sheath layer outside the armored layer of the steel tape, making the cable not easy to be damaged, and safe to use, which has the value of popularization and application.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

In the figure: 1-cable core, 2-high temperature resistant layer, 3-refractory insulating layer, 4-steel tape armor layer, 5-sheath layer, 6-fireproof wrapping tape, 7-filling layer, 8-coating , 9-insulation layer, 10-conductor.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figure 1, the present invention provides a technical solution for a high temperature resistant special cable: a high temperature resistant special cable, including a cable core 1, a high temperature resistant layer 2, a refractory insulating layer 3, a steel tape armor layer 4 and a sheath Layer 5, the cable core 1 is composed of several conductors 10, and the cross section of the cable core 1 is circular, and the outer coaxial of the cable core 1 is uniformly coated with a high temperature resistant layer 2, and the outer surface of the high temperature resistant layer 2 is the same as The shaft is evenly covered with a fire-resistant insulating layer 3, the material of the fire-resistant insulating layer 3 is polyvinyl chloride or polyethylene, and a filling layer 7 is provided between the fire-resistant insulating layer 3 and the fireproof wrapping tape 6, and the filling layer 7 is filled with refractory filling fibers, and the fireproof wrapping tape 6 is coaxially and uniformly coated with a steel tape armor layer 4, and the steel tape armor layer 4 is evenly coated with a coating 8, and the coating 8 The outside is evenly coated with a heat insulating layer 9, the material of the heat insulating layer 9 is a nano-microporous heat insulating material, and the outside of the heat insulating layer 9 is evenly coated with a sheath layer 5, and the material of the sheath layer 5 is One or more compositions of high temperature resistant nano-alumina, nano-titanium oxide and PET materials.

Working principle: by covering the cable core 1 with a high-temperature resistant layer 2 and a fire-resistant insulating layer 3 in sequence, the high-temperature resistance performance of the cable is greatly improved, and it also has the function of flame retardant and heat insulation, which is convenient and practical; by setting the steel tape armor layer 4. It not only increases the mechanical strength of the cable, improves the anti-corrosion ability, but also increases the tensile strength and compressive strength, etc.; by providing a coating 8, a heat insulation layer 9 and a sheath on the outside of the steel tape armor layer 4 Layer 5 further improves the high temperature resistance of the cable, making the cable less prone to damage and safe to use.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (5)

1. a kind of high temperature resistant type special cable, including cable core（1）, high-temperature-resistant layer（2）, refractory insulating layer（3）, steel-tape armouring layer （4）And restrictive coating（5）It is characterised in that：Described cable core（1）Coaxially it is uniformly coated with high-temperature-resistant layer outward（2）, described high-temperature-resistant layer （2）Coaxially it is uniformly coated with refractory insulating layer outward（3）, described refractory insulating layer（3）With fire prevention twining package tape（6）Between be provided with filling Layer（7）, described fire prevention twining package tape（6）Coaxially it is uniformly coated with steel-tape armouring layer outward（4）, described steel-tape armouring layer（4）Uniform outward It is coated with coating（8）, described coating（8）It is uniformly coated with outward thermal insulation layer（9）, described thermal insulation layer（9）Material be nanometer micropore Heat-barrier material, described thermal insulation layer（9）Outer uniform application has restrictive coating（5）.

2. a kind of high temperature resistant type special cable according to claim 1 it is characterised in that：Described cable core（1）By some Conductor（10）Composition, and cable core（1）Section be circle.

3. a kind of high temperature resistant type special cable according to claim 1 it is characterised in that：Described refractory insulating layer（3）'s Material is polrvinyl chloride or polyethylene.

4. a kind of high temperature resistant type special cable according to claim 1 it is characterised in that：Described packed layer（7）Interior filling There are fire resisting fiberfill fibers.

5. a kind of high temperature resistant type special cable according to claim 1 it is characterised in that：Described restrictive coating（5）Material One or more composition for high-temperature resistant nano aluminium oxide, nano-titanium oxide and PET material.