CN216697924U

CN216697924U - Novel mineral insulation fireproof cable

Info

Publication number: CN216697924U
Application number: CN202123307653.9U
Authority: CN
Inventors: 黄鹤; 刘跃; 智连君
Original assignee: Liaoning Xingshen Cable Co ltd
Current assignee: Xingshen Cable Group Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-06-07
Anticipated expiration: 2031-12-27

Abstract

The utility model discloses a novel mineral insulation fireproof cable, which belongs to the technical field of cables and comprises a copper core conductor, a shielding copper sheath, an inner sheath and an outer sheath, wherein the shielding copper sheath is attached to the outer wall of the copper core conductor, the inner sheath is arranged on the outer side of the shielding copper sheath, the outer sheath is arranged on the outer side of the inner sheath, heat insulation structures are arranged on the outer wall and the inner part of the inner sheath, and a fireproof flame-retardant structure is arranged on the inner wall of the outer sheath. According to the utility model, the aluminum hydroxide fire retardant is filled between the fireproof sheath and the outer sheath, when a room in which the cable is arranged in a factory catches fire, so that the fire is spread to the surface of the cable, the fire is gradually contacted with the aluminum hydroxide fire retardant filled between the outer sheath and the fireproof sheath, and at the moment, the aluminum hydroxide fire retardant is contacted with a large-area fire, so that the fire is prevented from spreading to a copper core conductor in the cable, and meanwhile, the magnesium oxide fireproof sheath with high fireproof insulating property can resist the burning loss of the high-temperature fire to the cable in the cable.

Description

Novel mineral insulation fireproof cable

Technical Field

The utility model belongs to the technical field of cables, and particularly relates to a novel mineral insulation fireproof cable.

Background

Cables are generally produced by twisting several or groups of conductors with a highly insulating covering and then wrapping them around them for transmitting power or information from one location to another.

The retrieval shows that a distortion-resistant and cold-resistant flame-retardant power cable with the patent number of CN202120974926.6 can be used in cooperation with an outer-layer distortion-resistant protection structure, the distortion-resistant and cold-resistant flame-retardant power cable is provided with the distortion-resistant and cold-resistant flame-retardant cable body, the distortion-resistant structures are arranged inside and outside the cable, the internal distortion-resistant structure has enough bending performance, the external distortion-resistant structure is matched to complement the distortion-resistant capability, and when the cable needs to be bent, the external distortion-resistant structure can be detached; wherein, the deficiency points are as follows:

this kind of can be anti warp anti cold fire-retardant power cable uses to arrange the inside back of mill at the staff, if the room that the inside arranged of mill cable produced when catching fire, this kind of can be anti warp anti cold fire-retardant power cable is because only single be provided with the fire-retardant layer of individual layer, make can not be fine resist great intensity of a fire stretch to the cable around the back, to the long-time burning of cable, cause the scaling loss of cable easily and cause the potential safety hazard, and when the room that arranges the cable produced to catch fire, this kind of can be anti warp anti cold fire-retardant power cable is owing to do not possess high temperature resistance's characteristic, make the cable easily under the high temperature environment of catching fire, cause the damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims to: in order to solve the problems, a novel mineral insulation fireproof cable is provided.

The technical scheme adopted by the utility model is as follows: the utility model provides a novel mineral insulation fireproof cable, includes copper core conductor, shielding copper sheath, inner sheath, oversheath, copper core conductor outer wall laminating is provided with shielding copper sheath, the shielding copper sheath outside is provided with the inner sheath, the inner sheath outside is provided with the oversheath, inner sheath outer wall and inside all are provided with thermal-insulated structure, the oversheath inner wall is provided with the fire prevention fire-retardant structure.

The fireproof flame-retardant structure consists of a fireproof sheath and an aluminum hydroxide flame retardant;

the fireproof protective sleeve is arranged on the inner wall of the outer protective sleeve and made of magnesium oxide, and an aluminum hydroxide fire retardant is filled between the fireproof protective sleeve and the outer protective sleeve.

The heat insulation structure is composed of a heat insulation filling layer and a heat insulation layer;

the shielding copper sheath is characterized in that a heat insulation filling layer is filled between the shielding copper sheath and the inner sheath and made of glass fiber, a heat insulation layer is attached to the outer wall of the inner sheath, and the heat insulation layer is made of silicon rubber.

The outer wall of the outer sheath is sprayed with a moisture-proof layer, and the moisture-proof layer is made of polypropylene.

Wherein, the material of the outer surface of the outer sheath is PVC.

Wherein, the outer surface material of oversheath is polytetrafluoroethylene.

In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that:

1. this kind of novel mineral insulation fireproof cable can make the aluminium hydroxide fire retardant will contact the large tracts of land intensity of a fire through being provided with the aluminium hydroxide fire retardant, when preventing that the intensity of a fire from stretching the inside copper core conductor of cable, has high fire-resistant insulating property's magnesium oxide material fire prevention sheath, can resist the high temperature intensity of a fire and cause the scaling loss to inside cable.

2. This kind of novel mineral insulation fireproof cable can make the silicon rubber material insulating layer that has high temperature resistant characteristic and the glass fiber material heat-insulating filling layer of heat-resisting, good insulating properties characteristic through being provided with thermal-insulated filling layer and insulating layer, can prevent that the high temperature environment that produces from influencing the copper core conductor in the mill's room of catching fire, prevents that copper core conductor temperature from rising.

Drawings

FIG. 1 is a schematic side sectional view of a cable according to the present invention;

FIG. 2 is a schematic diagram of a front cross-sectional structure of a cable according to the present invention;

fig. 3 is a schematic diagram of a cable with a front cross-sectional three-dimensional structure in the utility model.

The labels in the figure are: 1. a copper-core conductor; 101. a shield copper sheath; 102. a thermally insulating fill layer; 103. an inner sheath; 104. a thermal insulation layer; 105. a fire-resistant sheath; 106. an aluminum hydroxide flame retardant; 107. an outer sheath; 108. a moisture barrier.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the utility model:

referring to fig. 1-3, a novel mineral insulation fireproof cable, includes copper core conductor 1, shielding copper sheath 101, inner sheath 103, oversheath 107, and the laminating of copper core conductor 1 outer wall is provided with shielding copper sheath 101, and the shielding copper sheath 101 outside is provided with inner sheath 103, and the inner sheath 103 outside is provided with oversheath 107, and inner sheath 103 outer wall and inside all are provided with thermal-insulated structure, and the oversheath 107 inner wall is provided with the fire prevention fire-retardant structure.

Referring to fig. 1-3, further, the fire retardant construction is comprised of a fire retardant jacket 105 and an aluminum hydroxide fire retardant 106;

the inner wall of the outer sheath 107 is provided with a fireproof sheath 105, the fireproof sheath 105 is made of magnesium oxide, an aluminum hydroxide fire retardant 106 is filled between the fireproof sheath 105 and the outer sheath 107, when a room with a cable arranged in a factory catches fire, so that the fire extends to the surface of the cable, the fire gradually contacts the aluminum hydroxide fire retardant 106 filled between the outer sheath 107 and the fireproof sheath 105, at the moment, the aluminum hydroxide fire retardant 106 contacts a large-area fire, the fire is prevented from extending to the copper core conductor 1 inside the cable, the magnesium oxide fireproof sheath 105 with high fireproof insulation performance can resist the burning loss of the high-temperature fire to the inside cable.

Referring to fig. 1-3, further, the insulation structure is composed of an insulation filling layer 102 and an insulation layer 104;

it is provided with thermal-insulated filling layer 102 to fill between shielding copper sheath 101 and the inner sheath 103, and thermal-insulated filling layer 102 material is glass fiber, the laminating of inner sheath 103 outer wall is provided with insulating layer 104, and insulating layer 104 material is silicon rubber, the room that has the cable when arranging in the mill catches fire, make the intensity of a fire stretch around the cable, when making cable ambient temperature rise, silicon rubber material insulating layer 104 and heat-resisting that have high temperature resistant characteristic, the thermal-insulated filling layer 102 of glass fiber material of the good characteristic of insulating properties, the high temperature environment that can prevent to catch fire and produce the influence to copper core conductor 1 in the mill room, prevent that copper core conductor 1 temperature from rising.

Referring to fig. 1-3, further, a moisture-proof layer 108 is sprayed on the outer wall of the outer sheath 107, the moisture-proof layer 108 is made of a polypropylene material, and when air in a room in which the cable is disposed in a factory is relatively humid, the moisture-proof layer 108 made of a polypropylene material with anti-permeability, anti-humidity and anti-corrosion characteristics can prevent moisture from permeating into the outer sheath 107, so that the humidity in the outer sheath 107 is caused, and the fire-proof measures of the cable are affected.

Referring to fig. 1-3, further, the outer surface of the outer sheath 107 is made of PVC, and the PVC has an anti-corrosion property, so that the outer sheath 107 is not corroded and damaged due to long-term contact with external humid air.

As shown in fig. 1-3, in addition to the embodiment of the present invention in which the outer surface of the outer sheath 107 is made of PVC, another embodiment of the present invention is that the outer surface of the outer sheath 107 is made of ptfe, which has heat-resistant and corrosion-resistant properties, so that the outer sheath 107 is not corroded and damaged due to long-term contact with external humid air, and meanwhile, the outer sheath 107 is made of ptfe having anti-aging properties, so that the outer sheath 107 can be used for a long time without frequent maintenance due to rapid aging of external factors.

The working principle is as follows: firstly, a room with a cable arranged in a factory is on fire, so that fire spreads around the cable, when the temperature around the cable rises, a silicon rubber heat-insulating layer 104 with high-temperature resistance and a glass fiber heat-insulating filling layer 102 with good heat resistance and insulating property can prevent the high-temperature environment generated in the factory room with the fire from influencing a copper core conductor 1 and prevent the temperature of the copper core conductor 1 from rising, then, when the fire spreads to the surface of the cable, the fire gradually contacts an aluminum hydroxide fire retardant 106 filled between an outer sheath 107 and a fireproof sheath 105, at the moment, the aluminum hydroxide fire retardant 106 contacts a large-area fire, the fire spreads to the copper core conductor 1 in the cable, meanwhile, a magnesium oxide fireproof sheath 105 with high fire resistance and insulating property can resist the burning loss of the high-temperature fire to the cable in the factory, and finally, when the air in the room with the cable arranged in the factory is relatively humid, the anti-moisture layer 108 made of a polypropylene material with anti-permeability, anti-moisture and anti-corrosion characteristics can prevent moisture from permeating into the outer sheath 107 to cause moisture in the outer sheath 107 and influence fire prevention measures of the cable.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a novel mineral insulation fireproof cable, includes copper core conductor (1), shielding copper sheath (101), inner sheath (103), oversheath (107), copper core conductor (1) outer wall laminating is provided with shielding copper sheath (101), shielding copper sheath (101) outside is provided with inner sheath (103), the inner sheath (103) outside is provided with oversheath (107), its characterized in that: the outer wall and the inside of the inner sheath (103) are both provided with heat insulation structures, and the inner wall of the outer sheath (107) is provided with a fireproof flame-retardant structure.

2. A novel mineral insulated fireproof cable according to claim 1, wherein: the fireproof flame-retardant structure consists of a fireproof sheath (105) and an aluminum hydroxide flame retardant (106);

the fireproof protective cover is characterized in that a fireproof protective cover (105) is arranged on the inner wall of the outer sheath (107), the fireproof protective cover (105) is made of magnesium oxide, and an aluminum hydroxide fire retardant (106) is arranged between the fireproof protective cover (105) and the outer sheath (107).

3. A novel mineral insulated fireproof cable according to claim 1, wherein: the heat insulation structure is composed of a heat insulation filling layer (102) and a heat insulation layer (104);

the shielding copper-made protective sleeve is characterized in that a heat insulation filling layer (102) is filled between the shielding copper-made protective sleeve (101) and the inner protective sleeve (103), the heat insulation filling layer (102) is made of glass fibers, a heat insulation layer (104) is arranged on the outer wall of the inner protective sleeve (103), and the heat insulation layer (104) is made of silicon rubber.

4. A novel mineral insulated fireproof cable according to claim 1, wherein: the outer wall of the outer sheath (107) is provided with a moisture-proof layer (108), and the moisture-proof layer (108) is made of polypropylene.

5. A novel mineral insulated fireproof cable according to claim 1, wherein: the outer surface of the outer sheath (107) is made of PVC.

6. A novel mineral insulated fireproof cable according to claim 1, wherein: the outer surface of the outer sheath (107) is made of polytetrafluoroethylene.