WO2020000160A1

WO2020000160A1 - Environmentally friendly device

Info

Publication number: WO2020000160A1
Application number: PCT/CN2018/092721
Authority: WO
Inventors: 徐渊
Original assignee: 江苏宏大环保科技有限公司
Priority date: 2018-06-26
Filing date: 2018-06-26
Publication date: 2020-01-02

Abstract

An environmentally friendly device for use in the field of electrical power engineering, comprising an outer sheath layer (12), the outer sheath layer (12) being internally provided with three S-shaped interlocking armor layers (1), and the S-shaped interlocking armor layers (1) being internally provided with low-smoke halogen-free environmentally friendly sleeves (1-1); the three low-smoke halogen-free environmentally friendly sleeves (1-1) are internally provided with conductors (1-2), and the conductors (1-2) use irregularly-shaped single wires that twist with each other by means of pre-twisted molding; and halogen-free filler rope filling (1-3) is used inside of the low-smoke halogen-free environmentally friendly sleeves (1-1) and in gaps between the conductors (1-2). The present environmentally friendly device has a simple structure, is simple and easy to fabricate, is convenient to use, and has very good fire-resistant, high-temperature resistant, low-smoke, wear-resistant and anti-corrosive properties.

Description

Environmental protection equipment

Technical field

The invention relates to the technical field of electric wires and cables, in particular to an environmental protection device used in electric power engineering.

Background technique

In recent years, as people's awareness of quality, environmental protection, low carbon, and safety has become higher and higher, especially as global environmental problems have deteriorated, people have been paying more and more attention to environmental issues. The provision of prohibiting the use of environmentally-friendly cables in large and medium-sized buildings or public places, and currently China ’s engineering projects and the home wiring industry still use a large amount of ordinary PVC materials, and competition is in full swing. This has led many domestic manufacturers to use cut-throat methods to reduce costs. As a result, there is a great safety hazard in the produced cables, which will undoubtedly affect the safety of consumers' lives and property. In the European Union, the United States, Japan and other countries, strict environmental protection standards have been formulated for cable products, and legislation has been adopted to ban the application of PVC materials and gradually limit the production of PVC cables. According to statistics, 35% of international fires are caused by aging and short circuits of electric wires, and one-third of the deaths in the fires were caused by poisonous gases released from the burning of PVC cables. In view of the above problems, the current industry mostly uses low-smoke halogen-free materials to replace them, but investigations on actual installation and use show that low-smoke halogen-free materials have strong water absorption and poor abrasion resistance (mainly manifested in the process of pipe penetration, insulation Layer is easy to break), so that after a period of time or just after laying, the insulation resistance is lower than the resistance lower than the safe value, and the safety is poor. At present, most traditional power cables use round single-wire stranded conductors. The fill factor of the stranded conductor is 0.75. After compression, the fill factor reaches 0.82-0.92. Therefore, the outer diameter of the conductor is large, which increases insulation, filling, The amount of armor and sheath materials increases production costs and environmental protection purposes, while ordinary armored cable sheaths are made of PVC material, which contains halogen elements, which generates toxic gases when burned. The large amount of smoke and low light transmittance not only cause environmental pollution, but also restrict the rescue work at the fire scene. The current use of cables is becoming more and more widely used, so that cables will be applied to various complex environments, requiring cables to have various resistance properties, but the fire resistance of cables is too poor, and the material of the cable outer sheath directly affects It affects the anti-corrosion characteristics of the cable, the difficulty of laying the cable, and affects the service life of the cable, bringing various inconveniences to the user; and people's awareness of environmental protection is getting heavier, and the cable is also required to be environmentally friendly and safe. The existing environmental protection cable includes a conductor, an insulating layer made of polyvinyl chloride, a filling layer made of polyvinyl chloride, and a protective layer made of polyvinyl chloride; the insulating layer covers the conductor, the filling layer covers the insulating layer, and the protective layer covers the filling layer. The existing environmentally friendly cables are made of polyvinyl chloride, which contains a large amount of halogens. The burning of environmentally friendly cables will generate a large amount of hydrogen chloride, which is toxic, which will harm the health of people and threaten their lives.

Summary of the invention

An object of the present invention is to provide an environmental protection device aiming at the problems existing in the prior art.

In order to achieve the above object, the technical solution adopted by the present invention is: an environmental protection device, which includes an outer sheath layer, and a high temperature resistant heat insulation layer is arranged in the outer sheath layer, and silicon rubber fibers are arranged in the high temperature resistant heat insulation layer Cloth layer, the silicon rubber fiber cloth layer is provided with a wavy refractory layer, the wavy refractory layer is provided with a copper sheet insulation layer, and the copper sheet insulation layer is provided with three split screen layers side by side, and the three Each split screen layer is provided with an outer insulation layer, the three outer insulation layers are each provided with an inner insulation layer, the three inner insulation layers are each provided with an S-type interlocking armor layer, and the three Low-smoke and halogen-free environmental protection sleeves are provided in each of the S-type interlocking armoring layers, and conductors are provided in the three low-smoke and halogen-free environmental protection sleeves, and the conductors are twisted with each other through pre-twisting using shaped single wires. Smoke-free halogen-free environment-friendly inner and conductor gaps are filled with halogen-free filling ropes.

As a preferred solution of the present invention, the distance between the upper and lower wave crests of the wave-shaped refractory layer is 2-5 mm, and the material of the wave-shaped refractory layer is aluminum alloy. Using this wave-shaped structure can increase the layer The space between the layers, which can be insulated, fire-resistant and smoke-storage, and has excellent ductility.

As a preferred solution of the present invention, the material of the conductor is aluminum alloy, and the diameter of the conductor is 5-50 mm. Aluminum alloy is more conductive.

As a preferred solution of the present invention, glass filaments are filled between the copper sheet insulation layer and the three split screen layers, and the three split screen layers are arranged in a triangle. The triangular arrangement can better protect the conductor and ensure that the conductor is fully energized.

As a preferred solution of the present invention, the thickness of the copper sheet insulation layer is 1-3 mm.

As a preferred solution of the present invention, the outer sheath layer is made of high-density polyethylene and has a thickness of 3-10 mm. High density polyethylene has good abrasion resistance, insulation and fire resistance. Since the above technical solution is adopted, the beneficial effects of the present invention are that the environmental protection equipment has a simple structure and simple manufacturing. Easy to use, easy to use, good fire resistance, high temperature resistance, low smoke, wear resistance and corrosion resistance.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of an environmental protection device according to the present invention.

FIG. 2 is a schematic structural diagram of the S-type interlocking armor layer in FIG. 1.

detailed description

The present invention will be described in detail below with reference to the drawings. In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

Embodiment 1 An environmental protection device includes an outer sheath layer 12, and a high-temperature-resistant heat insulation layer 8 is provided in the outer sheath layer 12, and a silicon rubber fiber cloth layer 7 is provided in the high-temperature insulation layer 8; A corrugated refractory layer 6 is provided in the silicone rubber fiber cloth layer 7, and a corrugated refractory layer 5 is provided in the corrugated refractory layer 6, and three split screen layers 4 are arranged in the copper sheet insulation layer 5 side by side. An outer insulation layer 3 is provided in each of the three split screen layers 4, an inner insulation layer 2 is provided in each of the three outer insulation layers 3, and an S-type interlocking armor is provided in each of the three inner insulation layers 2. Layer 1, the three S-type interlocking armored layers 1 are provided with low-smoke and halogen-free environmental protection sleeves 1-1, and the three low-smoke and halogen-free environmental protection sleeves 1-1 are provided with conductors 1-2, The conductors 1-2 are twisted with each other through pre-twisted shaped wires, and the low-smoke and halogen-free environmental protection 1-1 is filled with halogen-free filling ropes 1-3 in the gap between the conductors 1-2. The distance between the two wave crests of the wave-shaped refractory layer 6 is 2-5 mm, and the material of the wave-shaped refractory layer 6 is aluminum alloy. The material of the conductor 1-2 is aluminum alloy, and the diameter of the conductor is 5-50 mm.

Embodiment 2 An environmental protection device includes an outer sheath layer 12, and a high-temperature-resistant heat-insulating layer 8 is provided in the outer sheath layer 12, and a silicon rubber fiber cloth layer 7 is provided in the high-temperature-resistant heat-insulating layer 8. A corrugated refractory layer 6 is provided in the silicone rubber fiber cloth layer 7, and a corrugated refractory layer 5 is provided in the corrugated refractory layer 6, and three split screen layers 4 are arranged in the copper sheet insulation layer 5 side by side. An outer insulation layer 3 is provided in each of the three split screen layers 4, an inner insulation layer 2 is provided in each of the three outer insulation layers 3, and an S-type interlocking armor is provided in each of the three inner insulation layers 2. Layer 1, the three S-type interlocking armored layers 1 are provided with low-smoke and halogen-free environmental protection sleeves 1-1, and the three low-smoke and halogen-free environmental protection sleeves 1-1 are provided with conductors 1-2, The conductors 1-2 are twisted with each other through pre-twisted shaped wires, and the low-smoke and halogen-free environmental protection 1-1 is filled with halogen-free filling ropes 1-3 in the gap between the conductors 1-2. The distance between the two wave crests of the wave-shaped refractory layer 6 is 2-5 mm, and the material of the wave-shaped refractory layer 6 is aluminum alloy. The material of the conductor 1-2 is aluminum alloy, and the diameter of the conductor is 5-50 mm. Glass fiber is filled between the copper sheet insulation layer 5 and the three split screen layers 4, and the three split screen layers 4 are arranged in a triangle. Embodiment 3 An environmental protection device includes an outer sheath layer 12, and a high-temperature-resistant heat insulation layer 8 is provided in the outer sheath layer 12, and a silicon rubber fiber cloth layer 7 is provided in the high-temperature insulation layer 8; A corrugated refractory layer 6 is provided in the silicone rubber fiber cloth layer 7, and a corrugated refractory layer 5 is provided in the corrugated refractory layer 6, and three split screen layers 4 are arranged in the copper sheet insulation layer 5 side by side. An outer insulation layer 3 is provided in each of the three split screen layers 4, an inner insulation layer 2 is provided in each of the three outer insulation layers 3, and an S-type interlocking armor is provided in each of the three inner insulation layers 2. Layer 1, the three S-type interlocking armored layers 1 are provided with low-smoke and halogen-free environmental protection sleeves 1-1, and the three low-smoke and halogen-free environmental protection sleeves 1-1 are provided with conductors 1-2, The conductors 1-2 are twisted with each other through pre-twisted shaped wires, and the low-smoke and halogen-free environmental protection 1-1 is filled with halogen-free filling ropes 1-3 in the gap between the conductors 1-2. The distance between the two wave crests of the wave-shaped refractory layer 6 is 2-5 mm, and the material of the wave-shaped refractory layer 6 is aluminum alloy. The material of the conductor 1-2 is aluminum alloy, and the diameter of the conductor is 5-50 mm. Glass fiber is filled between the copper sheet insulation layer 5 and the three split screen layers 4, and the three split screen layers 4 are arranged in a triangle. The thickness of the copper sheet insulation layer 5 is 1-3 mm. Embodiment 4 An environmental protection device includes an outer sheath layer 12 provided with a high-temperature-resistant heat-insulating layer 8 therein, and the high-temperature-resistant heat-insulating layer 8 is provided with a silicon rubber fiber cloth layer 7, A corrugated refractory layer 6 is provided in the silicone rubber fiber cloth layer 7, and a corrugated refractory layer 5 is provided in the corrugated refractory layer 6, and three split screen layers 4 are arranged in the copper sheet insulation layer 5 side by side. An outer insulation layer 3 is provided in each of the three split screen layers 4, an inner insulation layer 2 is provided in each of the three outer insulation layers 3, and an S-type interlocking armor is provided in each of the three inner insulation layers 2. Layer 1, the three S-type interlocking armored layers 1 are provided with low-smoke and halogen-free environmental protection sleeves 1-1, and the three low-smoke and halogen-free environmental protection sleeves 1-1 are provided with conductors 1-2, The conductors 1-2 are twisted with each other through pre-twisted shaped wires, and the low-smoke and halogen-free environmental protection 1-1 is filled with halogen-free filling ropes 1-3 in the gap between the conductors 1-2. The distance between the two wave crests of the wave-shaped refractory layer 6 is 2-5 mm, and the material of the wave-shaped refractory layer 6 is aluminum alloy. The material of the conductor 1-2 is aluminum alloy, and the diameter of the conductor is 5-50 mm. Glass fiber is filled between the copper sheet insulation layer 5 and the three split screen layers 4, and the three split screen layers 4 are arranged in a triangle. The thickness of the copper sheet insulation layer 5 is 1-3 mm. The outer sheath layer 12 is made of high-density polyethylene and has a thickness of 3-10 mm. The above description is only the preferred embodiments of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection of the present invention. Within range.

Claims

An environmental protection device includes an outer sheath layer (12), which is characterized in that a high temperature resistant heat insulation layer (8) is provided in the outer sheath layer (12), and the high temperature resistant heat insulation layer (8) is provided therein Silicon rubber fiber cloth layer (7), the silicon rubber fiber cloth layer (7) is provided with a wavy refractory layer (6), and the wavy refractory layer (6) is provided with a copper sheet insulation layer (5), The copper sheet insulation layer (5) is provided with three divided screen layers (4) side by side, and the three divided screen layers (4) are each provided with an outer insulating layer (3), and the three outer insulating layers ( 3) An inner insulation layer (2) is provided inside, and the three inner insulation layers (2) are each provided with an S-type interlocking armor layer (1), and the three S-type interlocking armor layers (1) A low-smoke and halogen-free environmental protection sleeve (1-1) is provided therein, and the three low-smoke and halogen-free environmental protection sleeves (1-1) are provided with a conductor (1-2), and the conductor (1-2) ) Use special-shaped single wires to twist each other through pre-twisting. The low-smoke and halogen-free environment-friendly (1-1) and the space between the conductor (1-2) are filled with halogen-free filling rope (1-3).
The environmental protection equipment according to claim 1, characterized in that the distance between the upper and lower peaks of the wavy refractory layer (6) is 2-5mm, and the material of the wavy refractory layer (6) is Aluminum alloy.
The environmental protection equipment according to claim 1, wherein the material of the conductor (1-2) is aluminum alloy, and the diameter of the conductor is 5-50 mm.
The environmental protection equipment according to claim 1, characterized in that: the copper sheet insulation layer (5) and the three split screen layers (4) are filled with glass filaments, and the three split screen layers (4) Arranged in a triangle.
The environmental protection equipment according to claim 1, characterized in that the thickness of the copper sheet insulation layer (5) is 1-3 mm.
The environmental protection equipment according to claim 1, wherein the outer sheath layer (12) is made of high-density polyethylene and has a thickness of 3-10 mm.