CN212182010U

CN212182010U - High-temperature-resistant flexible mineral-insulated fireproof cable

Info

Publication number: CN212182010U
Application number: CN202021178813.7U
Authority: CN
Inventors: 冯玉祥
Original assignee: Nanchang Xinhua Cable Co ltd
Current assignee: Nanchang Xinhua Cable Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2020-12-18
Anticipated expiration: 2030-06-23

Abstract

The utility model belongs to the cable field specifically is a high temperature resistant flexible mineral insulation fireproof cable, including cable core and first high temperature resistant flexible insulating layer, the figure of cable core is four groups, four groups the outer wall cover of cable core is equipped with first high temperature resistant flexible insulating layer, four groups cable core outside cover is equipped with the high temperature resistant flexible insulating layer of second, the high temperature resistant flexible insulating layer of second and the packing of first high temperature resistant flexible insulating layer have the fire prevention coating. The utility model discloses a first high temperature resistant flexible mineral insulation layer and the flexible mineral insulation layer of the high temperature resistant of second wrap up the cable heart, wrap up once more through the asbestos stratum reticulare simultaneously to the effectual insulating nature and the fire behavior that promote the cable.

Description

High-temperature-resistant flexible mineral-insulated fireproof cable

Technical Field

The utility model relates to a cable field specifically is a high temperature resistant flexible mineral insulation fireproof cable.

Background

Cables are generally rope-like cables made by stranding several or groups of conductors, at least two in each group, each group being insulated from each other and often twisted around a center, the entire outer surface being covered with a highly insulating covering. The device is erected in the air or installed underground or underwater for telecommunication or power transmission. In 1832, the sars and retired officer schooling grid buried the telegraph line underground, and the six wires were insulated with rubber and placed in a glass tube, which is the earliest underground cable in the world.

The existing cable is general in high temperature resistance and insulating fireproof performance, high temperature is easily generated in the using process of the cable, heat dissipation performance is general, and the cable is influenced by the temperature of the cable for a long time, so that the service life is short. For this reason, new technical solutions need to be designed to solve the problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high temperature resistant flexible mineral insulation fireproof cable has solved the problem that proposes in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a high-temperature-resistant flexible mineral-insulated fireproof cable comprises cable cores and first high-temperature-resistant flexible insulating layers, wherein the number of the cable cores is four groups, the first high-temperature-resistant flexible insulating layer is sleeved on the outer walls of the four groups of cable cores, a second high-temperature-resistant flexible insulating layer is sleeved on the outer sides of the four groups of cable cores, and fireproof coating layers are filled with the second high-temperature-resistant flexible insulating layer and the first high-temperature-resistant flexible insulating layer;

the second high-temperature-resistant flexible insulating layer is sleeved with an asbestos net layer, the outer wall of the asbestos net layer is sleeved with a wear-resistant layer, and through holes are uniformly distributed in the outer wall of the wear-resistant layer.

As a preferred embodiment of the present invention, the asbestos gauge layer includes an asbestos gauge body and steel wires, and the steel wires are uniformly distributed in the asbestos gauge body.

As a preferred embodiment of the present invention, the first high temperature resistant flexible insulating layer and the second high temperature resistant flexible insulating layer are glass fiber layers.

As a preferred embodiment of the present invention, the fireproof coating layer is a ceramic fiber layer.

As a preferred embodiment of the present invention, the wear-resistant layer is a wear-resistant compound layer.

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

1. the utility model discloses a first high temperature resistant flexible mineral insulation layer and the flexible mineral insulation layer of the high temperature resistant of second wrap up the cable heart, wrap up once more through the asbestos stratum reticulare simultaneously to the effectual insulating nature and the fire behavior that promote the cable.

2. The utility model discloses an asbestos stratum reticulare can absorb moisture to can evaporate the heat absorption at high temperature weather moisture, thereby take away partial temperature, thereby reach the effect of cooling down to the cable.

3. The utility model discloses an asbestos gauge layer embeds the steel wire to can effectually promote the tensile strength of cable.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic view of the overall structure of a high temperature resistant flexible mineral insulated fireproof cable of the present invention;

fig. 2 is a schematic view of the asbestos mesh layer structure of the high temperature resistant flexible mineral insulated fireproof cable of the present invention.

In the figure: 1. a core; 2. a first high temperature resistant flexible insulating layer; 3. a fire-proof coating layer; 4. a second high temperature resistant flexible insulating layer; 5. an asbestos web layer; 6. a wear layer; 7. a through hole; 8. an asbestos gauge body; 9. a steel wire.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. To the ordinary technical personnel in this field, can understand the specific meaning in the utility model of above-mentioned term with the concrete condition, the utility model provides an electrical apparatus's model is the reference only, can be through changing different models electrical apparatus that the function is the same according to the actual use condition.

Referring to fig. 1-2, the present invention provides a technical solution: a high-temperature-resistant flexible mineral insulation fireproof cable comprises cable cores 1 and first high-temperature-resistant flexible insulation layers 2, wherein the number of the cable cores 1 is four, the first high-temperature-resistant flexible insulation layers 2 are sleeved on the outer walls of the four groups of the cable cores 1, second high-temperature-resistant flexible insulation layers 4 are sleeved on the outer sides of the four groups of the cable cores 1, and fireproof coating layers 3 are filled in the second high-temperature-resistant flexible insulation layers 4 and the first high-temperature-resistant flexible insulation layers 2;

the flexible insulating layer 4 cover of second high temperature resistant is equipped with asbestos stratum reticulare 5, the outer wall cover of asbestos stratum reticulare 5 is equipped with wearing layer 6, the outer wall evenly distributed of wearing layer 6 has through-hole 7, as shown in figure 1 in this embodiment, specifically, asbestos stratum reticulare 5 can absorb moisture, and water meets high temperature evaporation to can take away partial temperature, reach the effect of cooling.

In this embodiment, referring to fig. 2, the asbestos gauge layer 5 includes an asbestos gauge body 8 and steel wires 9, the steel wires 9 are uniformly distributed in the asbestos gauge body 8, and specifically, the steel wires 9 can improve the tensile strength of the cable.

In this embodiment, referring to fig. 1, the first high temperature-resistant flexible insulating layer 2 and the second high temperature-resistant flexible insulating layer 4 are both glass fiber layers, and specifically, the insulating property can be improved.

In this embodiment, referring to fig. 1, the fireproof coating layer 3 is a ceramic fiber layer, which can prevent high temperature invasion and improve fireproof performance.

In this embodiment, referring to fig. 1, the wear-resistant layer 6 is a wear-resistant compound layer, and in particular, the wear-resistant performance is improved.

It should be noted that, the components included in the high temperature resistant flexible mineral insulation fireproof cable of the present invention are all the components known by the general standard components or the technicians in the field, the structure and principle thereof are all known by the technical manual or by the conventional experimental method, at the idle position of the device, all the electric devices in the above are connected by the conducting wire, which refers to the power element, the electric devices and the adaptive monitoring computer and the power source, the specific connection means should refer to the following working principle, the electric connection between the electric devices is completed in sequence, the detailed connection means is the well-known technology in the field, the following main introduces the working principle and process, no description is made on the electric control, when the high temperature resistant flexible mineral insulation fireproof cable is used, the insulation property of the cable can be effectively improved by the first high temperature resistant flexible insulating layer 2 and the second high temperature resistant flexible insulating layer 4, simultaneously can resist the influence of high temperature through the fire prevention coating 3 of filling between second high temperature resistant flexible insulation layer 4 and the first high temperature resistant flexible insulation layer 2, asbestos gauge layer 5 can further fire prevention simultaneously, when raining, the rainwater can pass hole 7 on 6 surfaces of wearing layer and get into in asbestos gauge layer 5 and be absorbed, thereby at the high-temperature chamber, partial heat can be taken away in the evaporation of water, reach the effect of cooling, steel wire 9 in the asbestos gauge layer 5 can show simultaneously and promote tensile strength, the device simple structure, the operation of being convenient for, therefore, the clothes hanger is strong in practicability.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a flexible mineral insulation fireproof cable of high temperature resistance, includes cable core (1) and first flexible insulating layer of high temperature resistance (2), its characterized in that: the number of the cable cores (1) is four, a first high-temperature-resistant flexible insulating layer (2) is sleeved on the outer wall of each of the four cable cores (1), a second high-temperature-resistant flexible insulating layer (4) is sleeved on the outer side of each of the four cable cores (1), and the fireproof coating layers (3) are filled in the second high-temperature-resistant flexible insulating layers (4) and the first high-temperature-resistant flexible insulating layers (2);

the second high-temperature-resistant flexible insulating layer (4) is sleeved with an asbestos net layer (5), the outer wall of the asbestos net layer (5) is sleeved with a wear-resistant layer (6), and through holes (7) are uniformly distributed in the outer wall of the wear-resistant layer (6).

2. The high temperature resistant flexible mineral insulated fireproof cable of claim 1, wherein: the asbestos net layer (5) comprises an asbestos net body (8) and steel wires (9), and the steel wires (9) are uniformly distributed in the asbestos net body (8).

3. The high temperature resistant flexible mineral insulated fireproof cable of claim 1, wherein: the first high-temperature-resistant flexible insulating layer (2) and the second high-temperature-resistant flexible insulating layer (4) are both glass fiber layers.

4. The high temperature resistant flexible mineral insulated fireproof cable of claim 1, wherein: the fireproof coating layer (3) is a ceramic fiber layer.

5. The high temperature resistant flexible mineral insulated fireproof cable of claim 1, wherein: the wear-resistant layer (6) is a wear-resistant compound layer.