CN104319004A - Damp-proof corrosion-resistant inflaming-retarding electric power communication cable - Google Patents

Abstract

The invention discloses a moisture-proof, corrosion-resistant, flame-retardant power communication cable, which comprises a conductor and an insulating layer, and a plurality of wire cores are arranged in the conductor; the conductor is arranged in a PVC plastic connecting rod; the gap between the PVC plastic connecting rod and the conductor is arranged There is a water-blocking filling layer; the center of the PVC plastic connecting rod is provided with an aluminum alloy hose; the outer layer of the PVC plastic connecting rod is extruded with a layer of insulating layer; the gap between the insulating layer and the PVC plastic connecting rod is provided with a filler; the outer part of the insulating layer A shielding layer is tightly extruded; the shielding layer is tightly extruded from the inside to the outside, and the reinforcement layer, the stainless steel wire armor layer and the aluminum-polyethylene bonding sheath are tightly extruded; the aluminum-polyethylene bonding sheath is extruded and wrapped with aluminum alloy interlocking The armored barrier layer; the aluminum alloy interlocked armored barrier layer is provided with a plurality of uniformly arranged drainage cores; the aluminum alloy interlocked armored barrier layer is provided with an inner sheath and an outer sheath in sequence. The invention has the advantages of good moisture-proof effect, good corrosion resistance, long service life and the like.

Description

Moisture-proof, corrosion-resistant and flame-retardant power communication cable

technical field

The invention relates to the field of cables, in particular to a moisture-proof, corrosion-resistant, flame-retardant power communication cable.

Background technique

At present, with the development of science and technology, people have more and more demands on cables. Cables are a common data signal transmission equipment, which have the advantages of large communication capacity, high transmission stability and good confidentiality performance. However, the existing Some common polymers are used in the cable protective layer, which not only has a short service life, but also pollutes the environment. The Chinese patent document application number is CN201310033225.2, a new type of fluoroplastic insulated high temperature resistant power cable, which is made of conductor , refractory mica layer, insulating layer, shielding layer and outer sheath, and the inside of the cable is equipped with a flame retardant layer wound with glass fiber tape, so as to achieve the effect of fire resistance and high temperature resistance. The outer sheath is made of fluoroplastic sheath However, the structure of this cable is relatively simple, and the interior of the cable is not compact enough, so that the power transmission will be unstable, and it will not be able to effectively prevent moisture and corrosion, thereby reducing the working life of the cable and increasing the cost of the enterprise. .

Contents of the invention

In order to overcome the above-mentioned defects in the prior art, the present invention discloses a moisture-proof, corrosion-resistant and flame-retardant power communication cable, which includes a conductor and an insulating layer, and a plurality of wire cores are arranged in the conductor; the conductor is arranged in a PVC plastic connecting rod; The gap between the plastic connecting rod and the conductor is provided with a water-blocking filling layer; the center of the PVC plastic connecting rod is provided with an aluminum alloy hose; the PVC plastic connecting rod is extruded with a layer of insulating layer; the gap between the insulating layer and the PVC plastic connecting rod Some fillers are provided; the insulation layer is tightly extruded with a layer of shielding layer; the shielding layer is tightly extruded from the inside to the outside with a reinforcement layer, a stainless steel wire armor layer and an aluminum-polyethylene bonding sheath; aluminum-polyethylene bonding The sheath is extruded with an aluminum alloy interlocking armored barrier layer; the aluminum alloy interlocked armored barrier layer is provided with multiple evenly arranged drainage cores; the aluminum alloy interlocked armored barrier layer is provided with an inner sheath and an outer sheath in sequence jacket. The invention has the advantages of good moisture-proof effect, good corrosion resistance, long service life and the like.

The present invention solves the technical problem, and the adopted technical solution is: a moisture-proof, corrosion-resistant and flame-retardant power communication cable, which includes a conductor and an insulating layer, and the cross-section of the conductor is a circular structure; the conductor is provided with a plurality of wire core; and the conductor is set in the PVC plastic connecting rod; the gap between the PVC plastic connecting rod and the conductor is provided with a water-blocking filling layer; the center of the PVC plastic connecting rod is provided with an aluminum alloy hose; the PVC plastic connecting rod is provided with an aluminum alloy hose; The plastic connecting rod is extruded with a layer of insulating layer; the gap between the insulating layer and the PVC plastic connecting rod is provided with a filler; the insulating layer is tightly extruded with a layer of shielding layer; the shielding layer is from inside to outside The reinforcement layer, the stainless steel wire armor layer and the aluminum-polyethylene bonding sheath are tightly extruded in sequence; the aluminum-polyethylene bonding layer is extruded and wrapped with an aluminum alloy interlocking armor barrier layer; the aluminum alloy interlocking A plurality of evenly arranged drainage cores are arranged inside the armored barrier layer; an inner sheath and an outer sheath are arranged outside the aluminum alloy interlocking armored barrier layer in sequence.

In the aforementioned moisture-proof, corrosion-resistant, flame-retardant power communication cable, the wire core is made of a solid copper wire core or a plurality of tightly pressed copper wire cores, and its cross-sectional shape is a circular or fan-shaped structure.

In the aforementioned moisture-proof, corrosion-resistant, flame-retardant power communication cable, the insulating layer extruded from the PVC plastic connecting rod is made of vitrified silicon rubber material.

In the above-mentioned moisture-proof, corrosion-resistant, flame-retardant power communication cable, the aluminum-polyethylene adhesive sheath is longitudinally wrapped outside the stainless steel wire armor layer, and the overlapping joints are heat-sealed at the overlapping joints of the longitudinal wrapping.

In the aforementioned moisture-proof, corrosion-resistant, and flame-retardant power communication cable, the cross-sectional material of the PVC plastic connecting rod is a five-pointed star structure.

In the aforementioned moisture-proof, corrosion-resistant, and flame-retardant power communication cable, the filler between the PVC plastic connecting rod and the insulating layer is a ceramic fireproof belt.

In the above-mentioned moisture-proof, corrosion-resistant and flame-retardant power communication cable, the material of the reinforcement layer is made of polyolefin material.

In the aforementioned moisture-proof, corrosion-resistant and flame-retardant power communication cable, the stainless steel wire braiding density of the stainless steel wire armor layer is not less than 88%.

In the aforementioned moisture-proof, corrosion-resistant, and flame-retardant power communication cable, the outer sheath and inner sheath are made of any one of low-smoke, halogen-free, flame-retardant plastic, polyvinyl chloride, or polysulfide rubber.

Owing to having adopted above-mentioned scheme, compared with prior art, the present invention has following beneficial effect:

1. The wire core is made of solid copper wire core or multi-strand tightly pressed copper wire core, which not only improves the working efficiency of the cable, but also makes it work more stably, and the wire core structure is easy to process, and the production length is not small. Restricted, it has a certain degree of softness and flexibility when used, which is convenient for workers to lay.

2. The aluminum alloy interlocking armored barrier layer can make the service life of the cable longer than that of ordinary cables, and can transmit higher current and withstand greater overload, and the aluminum alloy interlocked armored barrier layer has Good moisture insulation and chemical corrosion prevention, even if the cable is used for a long time, it will not reduce the insulation performance due to moisture absorption of the material.

3. The filler material arranged between the PVC plastic connecting rod and the insulating layer is a ceramic fireproof belt, which has the advantages of non-toxic, tasteless, good softness and elasticity at room temperature, and also has high and low temperature resistance, It has the characteristics of aging resistance and excellent electrical insulation. Under high temperature and flame burning, its organic components will be converted into hard ceramic-like substances in a short time, forming a flame barrier layer with good insulation.

4. The insulating layer is made of ceramized silicon rubber. When a fire occurs in the cable, the insulating layer with increased temperature will be immediately ceramized, and the formed ceramic has a good insulating layer and temperature-resistant layer, which can continue Use without replacement, thus greatly saving costs.

5. The tightly extruded shielding layer outside the insulating layer can significantly reduce the influence of external electromagnetic interference on the cable conductor, and can eliminate the shielding electrons, ensuring the information transmission effect of the cable, so that the working process of the cable is more stable.

6. The stainless steel wire armor layer braided with stainless steel wire improves the overall structural performance of the cable, and the fully enclosed design improves the oil and moisture resistance and structural strength of the cable, which can be used in harsh environments and ensure safety of power transmission.

7. The reinforcing layer set in the cable is made of chemically resistant low-smoke, halogen-free, highly flame-retardant and corrosion-resistant polyolefin material, so that it has good corrosion resistance to aromatic solvents, acid-base chemicals and oil solvents. High anti-aging performance, small loss of insulating medium, so as to achieve anti-corrosion performance.

8. The outer sheath and inner sheath are made of any one of low-smoke halogen-free flame-retardant plastics, polyvinyl chloride or polysulfide rubber materials, so they have flame-retardant and fire-resistant properties, and the cable is not easy to burn in case of fire , and can prevent the spread of flames and the expansion of disasters after burning. The smoke generated when the cable burns is also extremely thin, which is conducive to the evacuation of personnel and the execution of fire fighting.

Description of drawings

Fig. 1 is a cross-sectional structure schematic diagram of the present invention;

Fig. 2 is the schematic diagram of conductor structure of the present invention;

Fig. 3 is the structural representation of PVC plastic connecting rod of the present invention;

Among them: 1. Wire core; 2. Conductor; 3. PVC plastic connecting rod; 4. Water-blocking filling layer; 5. Filling; 6. Insulating layer; 7. Shielding layer; 8. Strengthening layer; 9. Stainless steel wire armor 10. Aluminum-polyethylene bonding sheath; 11. Inner sheath; 12. Outer sheath; 13. Drainage core; 14. Aluminum alloy interlocking armor barrier layer; 15. Aluminum alloy hose.

Detailed ways

As shown in Figures 1 to 3, the first specific embodiment of the present invention is: a moisture-proof, corrosion-resistant and flame-retardant power communication cable, which includes a conductor 2 and an insulating layer 6, and the cross-section of the conductor 2 is a circular structure The conductor 2 is provided with a plurality of wire cores 1; and the conductor 2 is arranged in the PVC plastic connecting rod 3; the gap between the PVC plastic connecting rod 3 and the conductor 2 is provided with a water-blocking filling layer 4; The center of the PVC plastic connecting rod 3 is provided with two aluminum alloy hoses 15; the PVC plastic connecting rod 3 is extruded with a layer of insulating layer 6; the gap between the insulating layer 6 and the PVC plastic connecting rod 3 is set There is a filler 5; the insulation layer 6 is tightly extruded with a layer of shielding layer 7; the shielding layer 7 is tightly extruded from the inside to the outside with a reinforcement layer 8, a stainless steel wire armor layer 9 and an aluminum-polyethylene bonding sheath. Layer 10; the aluminum-polyethylene bonding sheath 10 is extruded with an aluminum alloy interlocking armor barrier layer 14; the aluminum alloy interlocking armor barrier layer 14 is provided with eight evenly arranged drainage cores 13; The aluminum alloy interlocking armor barrier layer 14 is provided with an inner sheath 11 and an outer sheath 12 in sequence.

The wire core 1 is made of a solid copper wire core or a plurality of tightly pressed copper wire cores, which not only improves the working efficiency of the cable, but also makes it work more stably, and the structure of the wire core 1 is easy to process, and the production length Unrestricted, it has a certain degree of flexibility and flexibility when used, which is convenient for workers to lay; the diameter of the conductor 2 is 30mm, and the number of conductors is 5; and the conductor 2 is tightly wrapped by PVC plastic connecting rods 3 , so that the internal structure of the cable is more stable and compact, and the performance of the cable is improved; the gap between the conductor 2 and the PVC plastic connecting rod 3 is provided with a water-blocking filling layer 4 made of aluminum-plastic composite tape, which can effectively Prevent the interior of the cable from being affected by moisture, and the cable will not be affected by moisture; the PVC plastic connecting rod 3 is provided with two aluminum alloy hoses 15, which have certain stretch resistance and elasticity, and protect the cable It will not break due to stress, which improves the service life of the cable; the filler 5 arranged between the PVC plastic connecting rod 3 and the insulating layer 6 is a ceramic fireproof belt, which is non-toxic, tasteless, and has a good Softness and elasticity, it has high and low temperature resistance, aging resistance and excellent electrical insulation properties, in the case of high temperature and flame burning, the internal organic components are converted into hard ceramic-like substances in a very short time, forming a good Insulating flame barrier layer, and as the burning time increases, the temperature rises, and its hardness becomes more obvious. Its heat insulation and fire prevention effect is very good, ensuring that the heat of the external flame is not easily transmitted to the inside of the cable, which can effectively protect the cable. The core 1 of the cable; the insulating layer 6 is made of ceramic silicon rubber, and the ceramic silicon material is a new type of refractory insulating material. In the case of fire, when the sheath is damaged, the temperature rises and the insulating layer Ceramicized, the formed ceramic layer has good insulation effect and high temperature resistance effect, and can continue to be used even after a fire occurs without replacement, thereby greatly saving costs; the shielding layer 7 tightly extruded outside the insulating layer 6 is made of Composed of rubber synthetic sleeves, it can significantly reduce the influence of external electromagnetic interference on the cable conductor, and can exclude shielded electrons, ensuring the information transmission effect of the cable, so that the working process of the cable is more stable; the reinforcement layer 8 is made of chemical resistant Made of low-smoke, halogen-free, highly flame-retardant and corrosion-resistant polyolefin materials, it has good corrosion resistance to aromatic solvents, acid-base chemicals and oil solvents, high anti-aging performance, and small insulation Dielectric loss, so as to achieve anti-corrosion performance; the stainless steel wire armor layer 9 and the aluminum-polyethylene bonding sheath 10 that are sequentially extruded outside the reinforcement layer 8 constitute a static magnetostatic shield, and the magnetic permeability is very high. The magnetic resistance is very small, so most of the magnetic flux is limited in the static magnetic shielding body, so that the electric field is terminated in the static magnetic shielding body formed by it, so as to provide a relatively perfect closed magnetic field for the cable, which can effectively improve the attenuation performance of the cable It has a very obvious effect; and the aluminum-polyethylene adhesive sheath 10 adopts a longitudinal wrapping process, and the overlapping joints are heat-sealed at the lap joints of the longitudinal wrapping, so that the inner structure of the cable is more stable and will not be easily changed position, greatly improving the stability of the cable work Qualitatively; the aluminum alloy interlocking armored barrier layer 14 can make the service life of the cable longer than that of ordinary cables, and can transmit higher currents and withstand larger overloads, and the aluminum alloy interlocking armored barrier layer 14 has a good function of moisture insulation and chemical corrosion prevention, even if the cable is used for a long time and runs without electricity, it will not reduce the insulation performance due to moisture absorption of the material; the aluminum alloy interlocking armor barrier layer 14 is set inside Eight evenly arranged drainage cores 13 are not only beneficial to the grounding treatment of the cable, but also can ensure the continuity of the shielding layer 7; the inner sheath 11 and the outer sheath 12 are made of low-smoke halogen-free flame-retardant plastics, polyvinyl chloride or It is made of any one of the polysulfide rubber materials, which has flame retardant and fireproof properties. The cable is not easy to burn in the event of a fire, and can prevent the spread of the flame and the expansion of the disaster after burning. The smoke produced by the cable when it burns is also extremely thin. It is beneficial to the evacuation of personnel and the carrying out of fire fighting work, which greatly protects the safety of people's lives.

The above are the embodiments of the present invention, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the application of the present invention are included in the scope of the patent application of the present invention.

Claims (9)

1. A moisture-proof, corrosion-resistant and flame-retardant power communication cable, which comprises a conductor (2) and an insulating layer (6), is characterized in that: the cross-section of the conductor (2) is a circular structure; A plurality of wire cores (1) are provided; and the conductor (2) is arranged in a PVC plastic connecting rod (3); the gap between the PVC plastic connecting rod (3) and the conductor (2) is provided with a water-blocking filler layer (4); the center of the PVC plastic connecting rod (3) is provided with an aluminum alloy hose (15); the outer extrusion of the PVC plastic connecting rod (3) is covered with an insulating layer (6); the insulating layer ( 6) A filler (5) is provided in the gap between the PVC plastic connecting rod (3); a layer of shielding layer (7) is tightly extruded outside the insulating layer (6); the shielding layer (7) is made of The reinforcement layer (8), the stainless steel wire armor layer (9) and the aluminum-polyethylene bonding sheath (10) are tightly extruded in sequence from the inside to the outside; the aluminum-polyethylene bonding sheath (10) is extruded and wrapped with aluminum Alloy interlocking armored barrier layer (14); the aluminum alloy interlocked armored barrier layer (14) is provided with multiple evenly arranged drainage cores (13); the aluminum alloy interlocked armored barrier layer (14 ) are provided with an inner sheath (11) and an outer sheath (12) in sequence. 2. A moisture-proof, corrosion-resistant, flame-retardant power communication cable according to claim 1, characterized in that: the wire core (1) is made of a solid copper wire core or a plurality of tightly pressed copper wire cores, and the wire core (1) The cross-sectional shape is circular or fan-shaped. 3. A moisture-proof, corrosion-resistant, flame-retardant power communication cable according to claim 1, characterized in that: the insulating layer (6) of the PVC plastic connecting rod (3) is made of ceramic silicon rubber material . 4. A moisture-proof, corrosion-resistant, flame-retardant power communication cable according to claim 1, characterized in that: the aluminum-polyethylene adhesive sheath (10) is longitudinally wrapped outside the stainless steel wire armor layer (9), And heat seal the overlapping joints at the overlapping joints of the longitudinal package. 5. A moisture-proof, corrosion-resistant, flame-retardant power communication cable according to claim 1, characterized in that: the cross-sectional shape of the PVC plastic connecting rod (3) is a five-pointed star structure. 6. A moisture-proof, corrosion-resistant and flame-retardant power communication cable according to claim 1, characterized in that: the filler (5) between the PVC plastic connecting rod (3) and the insulating layer (6) is ceramic Firebreak. 7. A moisture-proof, corrosion-resistant, flame-retardant power communication cable according to claim 1, characterized in that: the reinforcement layer (8) is made of polyolefin material. 8. A moisture-proof, corrosion-resistant, flame-retardant power communication cable according to claim 1, characterized in that: the stainless steel wire braiding density of the stainless steel wire armor layer (9) is not less than 88%. 9. A moisture-proof, corrosion-resistant, flame-retardant power communication cable according to claim 1, characterized in that: the outer sheath (12) and the inner sheath (11) are made of low-smoke, halogen-free, flame-retardant plastics, polychlorinated It is made of any one of vinyl or polysulfide rubber materials.