CN206322498U - A kind of high temperature resistant type special cable - Google Patents

Abstract

The utility model discloses a kind of high temperature resistant type special cable, including cable core, high-temperature-resistant layer, refractory insulating layer, steel-tape armouring layer and restrictive coating, high-temperature-resistant layer is coaxially uniformly coated with outside the cable core, refractory insulating layer is coaxially uniformly coated with outside the high-temperature-resistant layer, packed layer is provided between the refractory insulating layer and fire prevention twining package tape, steel-tape armouring layer is coaxially uniformly coated with outside the fire prevention twining package tape, the steel-tape armouring layer is outer to be uniformly coated with coating, thermal insulation layer is uniformly coated with outside the coating, the material of the thermal insulation layer is nanometer micropore heat-barrier material, restrictive coating is uniformly coated with outside the thermal insulation layer.The utility model by being coated with high-temperature-resistant layer and refractory insulating layer successively outside cable core, substantially increase the resistance to elevated temperatures of cable, also there is anti-flaming thermal-insulation function, it is safe and reliable, by setting steel-tape armouring layer, the mechanical strength of cable is not only increased, erosion prevention is improved, it also add tensile strength and compression strength, it is easy to popularization and application.

Description

A high temperature resistant special cable

technical field

The utility model 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, which 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.

Utility model content

The purpose of the utility model is to provide a high temperature resistant special cable, which has reasonable structural 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 background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a high temperature resistant special cable, including a cable core, a high temperature resistant layer, a fire resistant insulating layer, a steel tape armor layer and a sheath layer, the outer coaxial Evenly covered 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 refractory insulating layer and the fire-proof wrapping tape, and the outer coaxial of the fire-resistant wrapping tape Evenly covered with a steel tape armor layer, the steel tape armor layer is evenly coated with a coating, and the outside of the coating is evenly covered with a heat insulation layer, and the material of the heat insulation layer is nano-microporous heat insulation material, and 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 of high temperature resistant nano-alumina, nano-titanium oxide and PET.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. The utility model greatly improves the high temperature resistance performance of the cable by sequentially covering 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 utility model 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 utility model further improves the high temperature resistance performance of the cable by providing a coating layer, a heat insulation layer and a sheath layer outside the armor layer of the steel tape, so that the cable is not easy to be damaged, and is safe to use, which has the value of popularization and application.

Description of drawings

Fig. 1 is the structural representation of the utility model.

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 technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figure 1, the utility model provides a high temperature resistant special cable technical solution: 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 The jacket 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 Coaxial evenly coated with a fire-resistant insulating layer 3, the material of the fire-resistant insulating layer 3 is polyvinyl chloride or polyethylene, a filling layer 7 is provided between the fire-resistant insulating layer 3 and the fire-proof wrapping tape 6, and the filling The 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 is evenly coated with a heat insulation layer 9, the material of the heat insulation layer 9 is a nano-microporous heat insulation material, and the heat insulation layer 9 is evenly coated with a sheath layer 5, and the material of the sheath layer 5 is It is one 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 and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (5)

1. A high temperature resistant type special cable, comprising 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), is characterized in that : the outer coaxial of the cable core (1) is evenly coated with a high temperature resistant layer (2), the outer coaxial of the high temperature resistant layer (2) is evenly coated with a refractory insulating layer (3), and the refractory insulating layer ( 3) There is a filling layer (7) between the fireproof wrapping belt (6), the outer coaxial of the fireproof wrapping belt (6) is evenly covered with a steel tape armor layer (4), and the steel tape armor A coating (8) is uniformly coated on the outside of the coating layer (4), and the coating (8) is evenly coated with a heat-insulating layer (9), and the material of the heat-insulating layer (9) is nano-microporous heat-insulating material, and a sheath layer (5) is evenly coated on the outside of the heat insulation layer (9). 2. A high temperature resistant special cable according to claim 1, characterized in that: the cable core (1) is composed of several conductors (10), and the cross section of the cable core (1) is circular. 3. A high-temperature-resistant special cable according to claim 1, characterized in that: the fire-resistant insulating layer (3) is made of polyvinyl chloride or polyethylene. 4. A high temperature resistant special cable according to claim 1, characterized in that: the filling layer (7) is filled with refractory filling fibers. 5. A high-temperature-resistant special cable according to claim 1, characterized in that: the material of the sheath layer (5) is one of high-temperature-resistant nano-alumina, nano-titanium oxide and PET.