CN210182118U - a fireproof cable - Google Patents

Abstract

The utility model discloses a fireproof cable, which comprises a central conductor and an insulating layer, wherein the insulating layer is sleeved on the central conductor, a fireproof structure is arranged on the insulating layer, and a heat-resistant structure is connected on the fireproof structure; the fire protection structure mainly comprises: the fireproof coating comprises an n-butyl acrylate layer, a methyl methacrylate layer and a fireproof component; the n-butyl acrylate layer is sleeved on the outer wall surface of the insulating layer, the methyl methacrylate layer is sleeved on the outer wall surface of the n-butyl acrylate layer, and the fireproof component is arranged on the methyl methacrylate layer; this device is through studying the improvement in the aspect of the structure, through adding n-butyl acrylate layer and methyl methacrylate layer, makes the device when meeting with the conflagration, can react, generates non-combustible cured substance and prevents the burning, and the fire protection coating in the device has the effect of hindering heat, and inside the protection device, difficult quilt high temperature damage, this device cost is lower, is suitable for using widely.

Description

Fireproof cable

Technical Field

The utility model relates to a fireproof cable technical field specifically is a fireproof cable.

Background

In 1879, the american inventor t.a. edison wrapped jute around a copper rod and threaded it into an iron pipe, and then filled with a bituminous mixture to make a benign conductor, to which the cable was born, he laid it in new york, opening up underground transmission. In the next year, England Callund invented pitch impregnated paper insulated power cable. In 1889, 10 kv oil-impregnated paper insulated cables were laid between london and delford in the english s.z. fran ladder. In 1908, 20 kv cable networks were built in uk, and by 80 years extra-high voltage power cables of 1100 kv and 1200 kv were made, the application of the cables is now extremely wide.

However, under the prior art conditions, a common cable is flammable, and is easily ignited when encountering a fire, so that the spread of the fire is aggravated, and the life and property safety of people is greatly affected.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides a fireproof cable has solved current ordinary cable and has had the flammability, is lighted easily when meeting with the conflagration, can aggravate the intensity of a fire and spread the propagation, and the security of the lives and property for people has brought very big influence, and current fireproof cable is very expensive, is unfavorable for the technical problem who uses widely.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

a fireproof cable comprises a central conductor and an insulating layer, wherein the insulating layer is sleeved on the central conductor, a fireproof structure is mounted on the insulating layer, and a heat-resistant structure is connected to the fireproof structure;

the fire protection structure mainly comprises: the fireproof coating comprises an n-butyl acrylate layer, a methyl methacrylate layer and a fireproof component;

the n-butyl acrylate layer is sleeved on the outer wall surface of the insulating layer, the methyl methacrylate layer is sleeved on the outer wall surface of the n-butyl acrylate layer, and the fireproof component is arranged on the methyl methacrylate layer.

Preferably, the fire-protection assembly mainly comprises: a chlorinated paraffin layer and an aluminum borate layer;

the chlorinated paraffin layer is sleeved on the outer wall surface of the methyl methacrylate layer, and the aluminum borate layer is sleeved on the outer wall surface of the chlorinated paraffin layer.

Preferably, the heat resistant structure mainly includes: fireproof fillers and fireproof coatings;

the aluminum borate layer is provided with a plurality of equidistant through holes with the same structure, fireproof fillers are filled in the through holes, and the fireproof coating is arranged on the outer wall surface of the aluminum borate layer.

Preferably, the outer wall surface of the fireproof coating is sleeved with a rubber skin sleeve layer.

Preferably, the n-butyl acrylate layer, the methyl methacrylate layer and the chlorinated paraffin layer are all the same in thickness. And is smaller than the wire diameter.

Preferably, the fireproof filler is of an integrally formed structure.

The embodiment of the utility model provides a have following advantage:

this device is through studying the improvement in the aspect of the structure, through adding n-butyl acrylate layer and methyl methacrylate layer, makes the device when meeting with the conflagration, can react, generates non-combustible cured substance and prevents the burning, and the fire protection coating in the device has the effect of hindering heat, and inside the protection device, difficult quilt high temperature damage, this device cost is lower, is suitable for using widely.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic view of a fire-proof cable according to an embodiment of the present invention.

Fig. 2 is a left side view schematic diagram of a fireproof cable according to an embodiment of the present invention.

Fig. 3 is a schematic view of a partially enlarged structure of the fireproof cable according to the embodiment of the present invention in fig. 2.

In the figure: 1-a central conductor; 2-an insulating layer; a 3-n-butyl acrylate layer; a 4-methyl methacrylate layer; 5-chlorinated paraffin layer; 6-aluminum borate layer; 7-fireproof filler; 8-a fire-retardant coating; 9-rubber leather sheath layer.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to the attached drawings 1-3 in the specification, the fireproof cable comprises a central lead 1 and an insulating layer 2, wherein the insulating layer 2 is used for protecting the central lead 1 and preventing electric leakage of the device, the insulating layer 2 is sleeved on the central lead 1, a fireproof structure is arranged on the insulating layer 2, and a heat-resistant structure is connected to the fireproof structure;

in the specific implementation, it is particularly costly that the fire protection structure mainly comprises: the connection relation and the position relation of the n-butyl acrylate layer 3, the methyl methacrylate layer 4 and the fireproof component are as follows:

the n-butyl acrylate layer 3 is sleeved on the outer wall surface of the insulating layer 2, the methyl methacrylate layer 4 is sleeved on the outer wall surface of the n-butyl acrylate layer 3, and the fireproof component is arranged on the methyl methacrylate layer 4;

from the above, the n-butyl acrylate layer 3 and the methyl methacrylate layer 4 function as a wrapping and protecting device, and when a fire occurs, the n-butyl acrylate layer 3 and the methyl methacrylate layer 4 undergo a polymerization reaction under a heated condition to generate a nonflammable cured product to prevent combustion;

the above fire-proof assembly mainly comprises: the chlorinated paraffin layer 5 and the aluminum borate layer 6 have the following connection relationship and position relationship:

the chlorinated paraffin layer 5 is sleeved on the outer wall surface of the methyl methacrylate layer 4, and the aluminum borate layer 6 is sleeved on the outer wall surface of the chlorinated paraffin layer 5;

as is clear from the above, both the chlorinated paraffin layer 5 and the methyl methacrylate layer 4 are nonflammable substances, and further, the combustion is prevented.

It is worth to be noted that the heat-resistant structure mainly includes: the connection relation and the position relation of the fireproof packing 7 and the fireproof coating 8 are as follows:

the aluminum borate layer 6 is provided with a plurality of equidistant through holes with the same structure, fireproof fillers 7 are filled in the through holes, and the fireproof coating 8 is arranged on the outer wall surface of the aluminum borate layer 6;

from the above, the aluminum borate layer 6 is used for fire prevention and flame retardation, and the fireproof filler 7 is used for flame retardation of a honeycomb cured product generated by heating in case of fire;

preferably, the outer wall surface of the fireproof coating 8 is sleeved with a rubber jacket layer 9 to prevent abrasion in the using process.

Preferably, the n-butyl acrylate layer 3, the methyl methacrylate layer 4 and the chlorinated paraffin layer 5 are all the same in thickness and smaller than the diameter of the lead, and the device has large flame retardancy and best conductivity under the condition of the same volume through scientific matching.

Preferably, the fireproof filler 7 is an integrally formed structure, so that the fireproof filler 7 is prevented from scattering, wandering and dispersing to influence the flame retardant effect of the device.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (6)

1. A fireproof cable comprises a central conductor (1) and an insulating layer (2), and is characterized in that the insulating layer (2) is sleeved on the central conductor (1), a fireproof structure is mounted on the insulating layer (2), and a heat-resistant structure is connected to the fireproof structure;

the fire protection structure mainly comprises: the fireproof coating comprises an n-butyl acrylate layer (3), a methyl methacrylate layer (4) and a fireproof component;

the n-butyl acrylate layer (3) is sleeved on the outer wall surface of the insulating layer (2), the methyl methacrylate layer (4) is sleeved on the outer wall surface of the n-butyl acrylate layer (3), and the fireproof component is installed on the methyl methacrylate layer (4).

2. A fire-resistant cable in accordance with claim 1, wherein said fire-resistant assembly consists essentially of: a chlorinated paraffin layer (5) and an aluminum borate layer (6);

the chlorinated paraffin layer (5) is sleeved on the outer wall surface of the methyl methacrylate layer (4), and the aluminum borate layer (6) is sleeved on the outer wall surface of the chlorinated paraffin layer (5).

3. A fire-resistant cable in accordance with claim 2, wherein said heat-resistant structure consists essentially of: a fireproof filler (7) and a fireproof coating (8);

the aluminum borate coating is characterized in that a plurality of equidistant through holes with the same structure are formed in the aluminum borate layer (6), fireproof fillers (7) are filled in the through holes, and the fireproof coating (8) is installed on the outer wall surface of the aluminum borate layer (6).

4. A fire-resistant cable according to claim 3, characterised in that the outer wall of the fire-resistant coating (8) is provided with a rubber sheath (9).

5. A fire-resistant cable according to claim 1, characterised in that the n-butyl acrylate layer (3), the methyl methacrylate layer (4) and the chlorinated paraffin layer (5) are all of the same thickness and are smaller than the diameter of the conductor.

6. A fire-resistant cable according to claim 3, characterised in that the fire-resistant filler (7) is of one-piece construction.

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