CN214505088U

CN214505088U - Multi-core stranded conductor fireproof cable

Info

Publication number: CN214505088U
Application number: CN202120924887.9U
Authority: CN
Inventors: 林子胜
Original assignee: Kunming Haitian Cable Co ltd
Current assignee: Kunming Haitian Cable Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-10-26
Anticipated expiration: 2031-04-30

Abstract

The utility model discloses a multicore transposition conductor fireproof cable, the outside cover of protective sheath is equipped with ceramic fiber cover, the even 12 strengthening ribs that are provided with in the ceramic fiber cover, ceramic fiber cover's outside suit radiation shield, the outside suit fire-resistant fiber fireproof cover of radiation shield, the inboard of protective sheath is provided with insulating cover, insulating cover's inside is provided with first cooling tube, the side of first cooling tube is provided with the cross-section and is criss-cross isolation frame, be provided with the buffer board between isolation frame and the insulating cover, the isolation frame of one side of buffer board goes up the symmetry and is provided with the second cooling tube, the electrically conductive core of transposition is four, the setting is in the space between isolation frame and insulating cover, pack the stopping in the space between electrically conductive core of transposition and the insulating cover. This is novel through radiation shield, ceramic fiber cover, can be isolated with outside heat, avoids getting into inside the cable, and the inside setting that adopts the cooling tube of cable simultaneously can effectively cool down the heat extraction, and simultaneously, the intensity of cable is high, is difficult for the rupture.

Description

Multi-core stranded conductor fireproof cable

Technical Field

The utility model relates to a cable field especially relates to a multicore transposition conductor fireproof cable.

Background

In order to ensure the safety of electricity, people hope that after a fire disaster occurs, the cable can prevent fire so as to avoid an electric leakage accident, and the fireproof cable mainly comprises a UL (UL) -series flame-retardant cable and a flame-retardant low-smoke halogen-free cable, and the fireproof cable mainly uses a fireproof material as a sheath to achieve the purpose of fire prevention.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multicore stranded conductor fireproof cable to prior art's not enough.

In order to achieve the above purpose, the present invention is achieved by the following technical solutions.

A multi-core twisted conductor fireproof cable comprises a fireproof fiber fireproof sleeve, a heat insulation sleeve, a ceramic fiber sleeve, reinforcing ribs, a protective sleeve, an insulation sleeve, a first cooling pipe, an isolation frame, a second cooling pipe, a buffer board, a twisted conductive core and fillers, wherein the ceramic fiber sleeve is sleeved outside the protective sleeve, 12 reinforcing ribs are uniformly arranged in the ceramic fiber sleeve, the heat insulation sleeve is sleeved outside the ceramic fiber sleeve, the fireproof fiber fireproof sleeve is sleeved outside the heat insulation sleeve, the insulation sleeve is arranged inside the protective sleeve, the first cooling pipe is arranged inside the insulation sleeve, the isolation frame with a cross-shaped cross-section is arranged on the side surface of the first cooling pipe, the buffer board is arranged between the isolation frame and the insulation sleeve, the second cooling pipe is symmetrically arranged on the isolation frame on one side of the buffer board, and the twisted conductive core is four, the twisted conductive core is arranged in a space between the isolation frame and the insulating sleeve, and filling materials are filled in a gap between the twisted conductive core and the insulating sleeve.

Furthermore, the fireproof fiber fireproof sleeve is made of basalt fiber fireproof cloth.

Furthermore, the heat insulation sleeve is made of tin foil paper.

Furthermore, the reinforcing ribs are steel wires.

Furthermore, the protective sheath is an inner protecting pipe made of polyphenylene sulfide.

Furthermore, the insulating sleeve is a silica gel soft sleeve.

Furthermore, the first cooling pipe, the second cooling pipe and the isolation frame are made of PVC materials in an integrated forming mode.

Further, the outside of the conductive core of transposition is provided with the inner sheath, the outside of inner sheath is provided with the shield cover, the outside of shield cover is provided with the oversheath, the inner sheath adopts the preparation of silane crosslinked polyethylene material, the shield cover is tin-plated wire mesh grid, the oversheath is the silica gel protective sheath.

Further, the filler is a refractory cellucotton filler.

The utility model has the advantages that: this is novel through radiation shield, ceramic fiber cover, can be isolated with outside heat, avoids getting into inside the cable, and the inside setting that adopts the cooling tube of cable simultaneously can effectively cool down the heat extraction, and simultaneously, the intensity of cable is high, is difficult for the rupture.

Drawings

Fig. 1 is a schematic structural view of a cross section of the present invention;

fig. 2 is a schematic cross-sectional view of a stranded conductive core of the present invention;

in the figure: 1. a fire-resistant fiber fireproof sleeve; 2. a heat insulating sleeve; 3. a ceramic fiber sleeve; 4. reinforcing ribs; 5. a protective sleeve; 6. an insulating sleeve; 7. a first cooling pipe; 8. an isolation frame; 9. a second cooling pipe; 10. a buffer plate; 11. twisting the conductive core; 12. a filler; 13. an inner sheath; 14. a shielding sleeve; 15. an outer sheath.

Detailed Description

The present invention is further illustrated by the following examples, but is not limited to the contents of the specification.

As shown in the figure: a multi-core stranded conductor fireproof cable comprises a fireproof fiber fireproof sleeve 1, a heat insulation sleeve 2, a ceramic fiber sleeve 3, a reinforcing rib 4, a protective sleeve 5, an insulation sleeve 6, a first cooling pipe 7, an isolation frame 8, a second cooling pipe 9, a buffer plate 10, a stranded conductive core 11 and a filler 12.

The outer side cover of protective sheath 5 is equipped with ceramic fiber cover 3, evenly in the ceramic fiber cover 3 be provided with 12 strengthening ribs 4, the outer side suit insulator sleeve 2 of ceramic fiber cover 3, the outer side suit fire-resistant fibre fire prevention cover 1 of insulator sleeve 2, the inboard of protective sheath 5 is provided with insulating cover 6, the inside of insulating cover 6 is provided with first cooling tube 7, the side of first cooling tube 7 is provided with the cross-section and is criss-cross isolation frame 8, be provided with buffer board 10 between isolation frame 8 and the insulating cover 6, the isolation frame 8 of one side of buffer board 10 goes up the symmetry and is provided with second cooling tube 9, the electrically conductive core 11 of transposition is four, set up in the space between isolation frame 8 and insulating cover 6, fill stopping 12 in the space between the electrically conductive core 11 of transposition and the insulating cover 6.

The fireproof fiber fireproof sleeve 1 is made of basalt fiber fireproof cloth which is non-combustible, high-temperature resistant (1100 ℃), compact in structure, free of irritation, soft in texture and flexible, and can wrap objects and equipment with uneven surfaces conveniently. The fireproof cloth can well protect objects from hot fire points and spark areas and thoroughly prevent or isolate combustion. The basalt fiber cloth not only has excellent low temperature resistance and high temperature resistance, but also has the advantages of low volume weight, low heat conduction, thermal shock resistance, chemical corrosion resistance, high elastic modulus, good flexibility, wear resistance, folding resistance and the like, and is easy to use.

The heat insulation sleeve 2 is made of the tin foil paper, the tin foil paper has good finish degree and heat reflectivity, the protection of the tin foil paper is achieved, and the situation that heat enters the inside of the cable when the cable is baked by big fire can be avoided.

The ceramic fiber sleeve 3 is a ceramic fiber product, is an industrial product which is made of ceramic fibers as raw materials, has the advantages of light weight, high temperature resistance, good thermal stability, low thermal conductivity, small specific heat, mechanical shock resistance and the like, is processed and is specially used in various high-temperature, high-pressure and easily-abraded environments. In order to strengthen the strength of the cable, 12 reinforcing ribs 4 can be uniformly arranged in the ceramic fiber sleeve 3, the reinforcing ribs 4 are steel wires, the strength of the cable can be strengthened, and meanwhile, under the protection of the fireproof fiber fireproof sleeve 1 and the heat insulation sleeve 2, even if the outside of the cable is baked at high temperature, the temperature of the reinforcing ribs 4 can still keep in a normal range and cannot be softened.

The protective sleeve 5 is an inner protective pipe made of polyphenylene sulfide, the polyphenylene sulfide is PPS for short, the PPS is a special engineering plastic with excellent comprehensive performance, and the PPS has the characteristics of excellent high temperature resistance, corrosion resistance, radiation resistance, flame retardance, balanced physical and mechanical properties, excellent dimensional stability, excellent electrical performance and the like.

The insulating sleeve 6 is a silica gel soft sleeve, can play a role in buffering friction, prevents the inner filler from causing friction damage to the protective sleeve 5, is a high-activity adsorption material and belongs to an amorphous substance, and the main component of the silica gel is silicon dioxide, so that the silica gel is stable in chemical property, non-combustible, non-conductive, and excellent in abrasion resistance and elastic plasticity.

First cooling tube 7, second cooling tube 9, isolation frame 8 all adopt the preparation of PVC material, three integrated into one piece, and logical cooling water or air in first cooling tube 7, the second cooling tube 9 can be for the inside heat transfer of cable cooling, prevent the gathering of transposition conductive core 11 self production heat, damage the protective sheath of electric core. Two second cooling pipes 9 and one first cooling pipe 7 are arranged around each twisted conductive core 11, so that heat generated by the twisted conductive cores 11 can be dissipated as soon as possible.

The four twisted conductive cores 11 are separated by the isolating frame 8, so that the mutual friction contact between the wires is avoided, and the short circuit is avoided. Meanwhile, the isolation frame 8 can also enhance the strength of the cable, so that the cable can be conveniently hoisted.

Buffer board 10 is the same with the insulating cover 6 material, is silica gel, can play the effect of fixed isolation frame 8, simultaneously, prevents that isolation frame 8 from damaging protective sheath 5, insulating cover 6.

The twisted conductive core 11 is formed by twisting a plurality of copper wires, and the total number is four, so that the twisted conductive core can be used as three two-phase electricity or one three-phase electricity, and the application is wide. An inner sheath 13 is arranged on the outer side of the twisted conductive core 11, a shielding sheath 14 is arranged on the outer side of the inner sheath 13, an outer sheath 15 is arranged on the outer side of the shielding sheath 14, and the inner sheath 13 is made of a silane cross-linked polyethylene material, so that the anti-aging performance is good, and the service life is long. The shielding sleeve 14 is a tin-plated woven mesh. The outer sheath 15 is a silica gel protective sleeve, and has good wear resistance.

The filling material 12 is made of refractory fiber cotton which has the characteristics of stable performance, long fiber, large tensile strength, less slag balls, high thermal stability, white color and the like. The classification temperature is 1050-.

As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect. In addition, the description which follows is a preferred embodiment of the invention, but is made for the purpose of illustrating the general principles of the invention and not for the purpose of limiting the scope of the invention. The scope of the present invention is defined by the appended claims.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

The foregoing description shows and describes several preferred embodiments of the invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A multi-core stranded conductor fireproof cable is characterized in that: it comprises a fireproof fiber fireproof sleeve (1), a heat insulation sleeve (2), a ceramic fiber sleeve (3), reinforcing ribs (4), a protective sleeve (5), an insulation sleeve (6), a first cooling pipe (7), an isolation frame (8), a second cooling pipe (9), a buffer board (10), a twisted conductive core (11) and fillers (12), wherein the ceramic fiber sleeve (3) is sleeved on the outer side of the protective sleeve (5), 12 reinforcing ribs (4) are uniformly arranged in the ceramic fiber sleeve (3), the heat insulation sleeve (2) is sleeved on the outer side of the ceramic fiber sleeve (3), the fireproof fiber fireproof sleeve (1) is sleeved on the outer side of the heat insulation sleeve (2), the insulation sleeve (6) is arranged on the inner side of the protective sleeve (5), the first cooling pipe (7) is arranged in the insulation sleeve (6), the isolation frame (8) with a cross-shaped cross section is arranged on the side surface of the first cooling pipe (7), be provided with buffer board (10) between isolation frame (8) and insulating cover (6), the isolation frame (8) of one side of buffer board (10) goes up the symmetry and is provided with second cooling tube (9), electrically conductive core (11) of transposition is four, set up in the space between isolation frame (8) and insulating cover (6), pack stopping (12) in the space between electrically conductive core (11) of transposition and insulating cover (6).

2. The multi-core stranded conductor fire resistant cable of claim 1, wherein: the fireproof fiber fireproof sleeve (1) is made of basalt fiber fireproof cloth.

3. The multi-core stranded conductor fire resistant cable of claim 1, wherein: the heat insulation sleeve (2) is made of tin foil paper.

4. The multi-core stranded conductor fire resistant cable of claim 1, wherein: the reinforcing ribs (4) are steel wires.

5. The multi-core stranded conductor fire resistant cable of claim 1, wherein: the protective sleeve (5) is an inner protective pipe made of polyphenylene sulfide.

6. The multi-core stranded conductor fire resistant cable of claim 1, wherein: the insulating sleeve (6) is a silica gel soft sleeve.

7. The multi-core stranded conductor fire resistant cable of claim 1, wherein: the first cooling pipe (7), the second cooling pipe (9) and the isolation frame (8) are all made of PVC materials in an integrated forming mode.

8. The multi-core stranded conductor fire resistant cable of claim 1, wherein: the outside of the conductive core of transposition (11) is provided with inner sheath (13), the outside of inner sheath (13) is provided with shield sleeve (14), the outside of shield sleeve (14) is provided with oversheath (15), inner sheath (13) adopt the preparation of silane crosslinked polyethylene material, shield sleeve (14) are tin-plated wire mesh grid, oversheath (15) are the silica gel protective sheath.

9. The multi-core stranded conductor fire resistant cable of claim 1, wherein: the filling material (12) is a refractory cellucotton filling material.