CN218768840U - Fire-resistant cable and cable cooling system - Google Patents

Abstract

The utility model discloses a fire resisting cable and cable cooling system, wherein, fire resisting cable includes the cable body, the cable body includes band layer and many sinle silk of closely arranging, the band layer is located the periphery of cable body, many sinle silks are established in the intraformational central point in band and are put the department, be equipped with the flame retardant coating between band layer and many sinle silks, the flame retardant coating includes many refractory pipes, the length direction setting of cable body is followed to the refractory pipe, the periphery of refractory pipe and the interior week of band layer and the periphery butt of sinle silk, this fire resisting cable's refractory pipe plays good fire-resistant guard action, and the wall temperature that tubular structure can be better is toward its inside transmission, play good support and filling effect, the refractory pipe is high in the production process of fire resisting cable, conveniently add to the cable body, and can also carry out ventilation cooling to the inside of refractory pipe when necessary, prevent that outside temperature is toward the inside transmission of cable body, this fire resisting cable is effectual, high in production efficiency.

Description

Fire-resistant cable and cable cooling system

Technical Field

The utility model is used for cable technical field especially relates to a fire resisting cable and cable cooling system.

Background

In order to improve the fire-resistant effect, the existing fire-resistant cable mostly uses a ceramic silica gel tape to wrap, the ceramic silica gel tape structure needs to be wrapped by 4 to 6 layers, but the ceramic silica gel tape is soft and thick, so that the wrapping efficiency of the process of wrapping the ceramic silica gel tape is low, the production efficiency is low, the productivity of the fire-resistant cable is low, the unit price of the ceramic silica gel tape is high, the cost of the fire-resistant cable is high, and the market competitiveness is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a fire resisting cable and cable cooling system, fire resisting cable's simple structure, fire behavior are good, and production efficiency is high.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a fire-resistant cable, includes the cable body, the cable body includes band layer and many sinle silk of closely arranging, the band layer is located the periphery of cable body, many the sinle silk is established the intraformational central point in band puts the department, band layer and many be equipped with the flame retardant coating between the sinle silk, the flame retardant coating includes many fire-resistant pipes, fire-resistant pipe follows the length direction of cable body sets up, the periphery of fire-resistant pipe with the inner periphery of band layer with the periphery butt of sinle silk.

Preferably, the belting layer comprises a glass fiber belt, the glass fiber belt is wrapped on the periphery of the fire-resistant layer, and the overlapping rate of the glass fiber belt is 25-30%.

Preferably, the belting layer comprises a flame-retardant belt, the flame-retardant belt is wrapped on the periphery of the glass fiber belt, and the overlapping rate of the flame-retardant belt is 25-30%.

Preferably, the fire-resistant pipe is formed by ceramic polyolefin material extrusion molding, and many fire-resistant pipes's diameter is different, one side of fire-resistant pipe with band layer butt, the opposite side with the sinle silk butt.

Preferably, the number of the wire cores is three, and the outer sheath is arranged on the periphery of the belting layer.

Preferably, the wire core sequentially comprises a conductor, a first conductor shielding layer, an insulating shielding layer and a second conductor shielding layer from inside to outside.

Preferably, the conductor comprises a plurality of wires, and conductive adhesive is arranged between the wires.

Preferably, the first conductor shielding layer and the insulation shielding layer both comprise conductive adhesive, and the second conductor shielding layer comprises a copper strip wrapped on the periphery of the insulation shielding layer.

Preferably, the conductor is a compact round conductor, and the compression coefficient of the conductor is 90-95%.

A cable cooling system comprises an air pump and the fire-resistant cable, wherein an air outlet is formed in the air pump, and the air outlet of the air pump is communicated with the fire-resistant pipe.

One of the above technical solutions has at least one of the following advantages or beneficial effects: this fire resisting cable includes band layer and many sinle silks that closely arrange, be equipped with the flame retardant coating between band layer and many sinle silks, the flame retardant coating includes many refractory tubes, the refractory tube is followed the length direction setting of cable body, the periphery of refractory tube and the interior week of band layer and the periphery butt of sinle silk, this fire resisting cable replaces traditional multilayer ceramic silica gel tape structure through the refractory tube, play good fire-resistant guard action, and the wall temperature that the tubular structure of refractory tube can be better toward its inside transmission, and can play good support and filling effect, the refractory tube is high in the production process of fire resisting cable, conveniently add into the cable body, and can also carry out ventilation cooling to the inside of refractory tube when necessary, prevent that external temperature from toward the inside transmission of cable body at the flame firing in-process, this fire resisting cable is fire-resistant effectual, production efficiency is high.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the present invention, if there is a description of directions (up, down, left, right, front and back), it is only for convenience of description of the technical solution of the present invention, and it is not intended to indicate or imply that the technical features indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the utility model, the meaning of a plurality of is one or more, the meaning of a plurality of is more than two, and the meaning of more than two is understood as not including the number; "above", "below", "within" and the like are understood to include the present numbers. In the description of the present invention, if there is any description of "first" and "second" only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the present invention, unless otherwise explicitly defined, the terms "set", "install", "connect", and the like are to be understood in a broad sense, and for example, may be directly connected or may be indirectly connected through an intermediate medium; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be mechanically coupled, may be electrically coupled or may be capable of communicating with each other; either internal to the two elements or in an interactive relationship of the two elements. The technical skill in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solution.

An embodiment of the utility model provides a fire-resistant cable, see figure 1, including the cable body, the cable body includes band layer 100 and many sinle silk 200 that closely arrange, and band layer 100 is located the periphery of cable body, many sinle silks 200 establish central point department of arranging in band layer 100, are equipped with flame retardant coating 300 between band layer 100 and many sinle silks 200, and flame retardant coating 300 includes many fire-resistant pipe 310, and fire-resistant pipe 310 follows the length direction setting of cable body, the periphery of fire-resistant pipe 310 and the interior week of band layer 100 and the periphery butt of sinle silk 200, fire-resistant pipe 310 can replace traditional multilayer ceramic silica gel tape structure, play good fire-resistant protective action, and fire-resistant pipe 310 is the tubular structure, and wall temperature that can be better is toward its inside transmission, and can play good support and filling effect, fire-resistant pipe 310 is filling efficient in fire-resistant cable's production process, and fire-resistant pipe 310 conveniently adds into the cable body, and can also ventilate the heat dissipation to the inside of fire-resistant pipe 310 as necessary, prevents outside temperature and transmit toward the fire-resistant cable body is effectual in the fire-resistant cable firing process, and production efficiency is high.

Referring to fig. 1, the belting layer 100 includes a glass fiber tape wrapped around the periphery of the flame retardant coating 300, the overlapping rate of the glass fiber tape is 25-30%, the glass fiber tape has high strength, flame combustion can be prevented, and a core structure inside the glass fiber tape is protected.

Referring to fig. 1, the belting layer 100 includes a flame retardant belt wrapped around the periphery of the glass fiber belt, the overlapping rate of the flame retardant belt is 25-30%, the glass fiber belt is soft and uneven, and the flame retardant belt is hard, so that the periphery of the glass fiber belt is flat due to the wrapping around the periphery of the glass fiber belt, which is convenient for the next process, the flame retardant belt plays an isolation role, and the flame retardant effect of the fire-resistant cable is improved.

Preferably, referring to fig. 1, the fire-resistant pipe 310 is formed by ceramic polyolefin material extrusion molding, the diameters of a plurality of fire-resistant pipes 310 are different, one side of the fire-resistant pipe 310 is abutted with the belting layer 100, the other side is abutted with the wire core 200, the unit price of the ceramic polyolefin material is low, the production cost of the fire-resistant cable is reduced, the competitiveness of the product is effectively improved, the ceramic polyolefin material has high hardness, the ceramic polyolefin material has good extrusion molding performance, the extrusion molding processing is convenient, the ceramic polyolefin material can be formed at the temperature of more than 300 ℃, and the fire-resistant and heat-insulating effect is good.

In some embodiments, referring to fig. 1, the core 200 is provided in three and the outer circumference of the tape layer 100 is provided with an outer jacket 400 to preferentially protect the internal structure of the fire resistant cable.

Preferably, referring to fig. 1, the wire core 200 includes a conductor 210, a first conductor shielding layer 220, an insulating layer 230, an insulating shielding layer 240, and a second conductor shielding layer 250 in sequence from inside to outside, and has good conductivity.

As a preferred embodiment of the present invention, referring to fig. 1, the conductor 210 includes a plurality of wires, and a plurality of conductive adhesives are disposed between the wires, and preferably, the conductive adhesives include semi-conductive adhesive polyethylene.

Referring to fig. 1, first conductor shield 220 and insulation shield 240 both include conductive adhesive, preferably, conductive adhesive includes semi-conductive adhesive polyethylene, and insulating layer 230 includes adhesive polyethylene, and second conductor shield 250 includes around the copper strips of package in insulation shield 240 periphery, and second conductor shield 250 can separate inside and outside electric field, avoids inside electric field to receive the interference, improves this fire resisting cable's performance.

As the preferred embodiment of the present invention, referring to fig. 1, conductor 210 is a compressed round conductor, the compression coefficient of conductor 210 is 90-95%, after conductor 210 is formed by the wire deposit, the periphery of conductor 210 is wave, and after being compressed into a round conductor, the periphery of conductor 210 is flat, avoiding the point discharge, and improving the performance of the fire-resistant cable.

An embodiment of the utility model provides a cable cooling system is still provided, including air pump and any one of the above-mentioned embodiment fire resisting cable, be equipped with the gas outlet on the air pump, the gas outlet and the fire-resistant pipe 310 of air pump are linked together, to the inside ventilation cooling of fire-resistant pipe 310 through the air pump when needs, guarantee to prevent outside temperature at the flame firing in-process and past the inside transmission of cable body, the cable operation that avoids the inside high temperature of cable body to lead to is inefficacy.

In the description of the present specification, references to the description of the term "example," "an embodiment," or "some embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.

Claims (10)

1. A fire resistant cable, characterized by: the cable comprises a cable body, the cable body includes band layer and many sinle silks of closely arranging, the band layer is located the periphery of cable body, many the sinle silk is established the intraformational central point in band puts the department, band layer and many be equipped with the flame retardant coating between the sinle silk, the flame retardant coating includes many fire-resistant pipes, fire-resistant pipe follows the length direction setting of cable body, the periphery of fire-resistant pipe with the inner periphery on band layer with the periphery butt of sinle silk.

2. The fire resistant cable of claim 1, wherein: the belting layer comprises a glass fiber belt, the glass fiber belt is wrapped on the periphery of the fire-resistant layer, and the overlapping rate of the glass fiber belt is 25-30%.

3. The fire resistant cable of claim 2, wherein: the belting layer comprises a flame-retardant belt, the flame-retardant belt is wrapped on the periphery of the glass fiber belt, and the overlapping rate of the flame-retardant belt is 25-30%.

4. The fire resistant cable of claim 1, wherein: the fire-resistant pipe is formed by ceramic polyolefin material extrusion molding, and many the diameter of fire-resistant pipe is different, one side of fire-resistant pipe with the band layer butt, the opposite side with the sinle silk butt.

5. The fire resistant cable of claim 1, wherein: the sinle silk is equipped with three, the periphery on band layer is equipped with the oversheath.

6. The fire resistant cable of claim 1, wherein: the cable core sequentially comprises a conductor, a first conductor shielding layer, an insulating shielding layer and a second conductor shielding layer from inside to outside.

7. The fire resistant cable of claim 6, wherein: the conductor comprises a plurality of wires, and conductive adhesive is arranged between the wires.

8. The fire resistant cable of claim 6, wherein: the first conductor shielding layer and the insulation shielding layer both comprise conductive adhesive, and the second conductor shielding layer comprises a copper belt wrapped on the periphery of the insulation shielding layer.

9. The fire resistant cable of claim 6, wherein: the conductor is a compressed round conductor, and the compression coefficient of the conductor is 90-95%.

10. A cable cooling system which characterized in that: the fireproof cable comprises an air pump and the fireproof cable as claimed in any one of claims 1 to 9, wherein an air outlet is formed in the air pump, and the air outlet of the air pump is communicated with the fireproof tube.

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