CN200959247Y - Flame-retardant and waterproof composite shielded armored measurement and control cable for remote oil pipeline monitoring system - Google Patents

Abstract

A flame retardant waterproof type composite shielding armored measuring and controlling cable used in remote oil pipeline monitoring system belongs to the field of cable technology and comprises an internal sheath arranged on the cable core cabled by insulated wire core, an armored layer and an external sheath. The characteristic is that a plurality of insulated wire core twisted pair cable with partial shielding layer is arranged to compose the cable core of the cable, the cable core is arranged successively from inside to outside with a winding wrapped flame retardant polyester belt isolation layer, a longitudinally wrapped aluminum belt total shielding layer, a winding wrapped high flame retardant glass fiber belt flame retardant layer, a winding wrapped water blocking cloth tape water blocking layer and a winding wrapped galvanized steel belt armored layer, a flame retardant polyethylene internal sheath is extrusion wrapped between the water blocking layer and the armored layer, a flame retardant polyvinyl chloride external sheath is extrusion wrapped on the outer surface of the armored layer. The utility model has advantages of simple and reasonable structure, easy production and manufacture, low cost, good service performance, and good performance of flame retardancy, explosion protection, corrode resistance, interference resistance, waterproofing and external force impact resistance, which is an ideal cable for remote oil pipeline monitoring system.

Description

Flame-retardant and waterproof composite shielded armored measurement and control cable for remote oil pipeline monitoring system

technical field

The utility model relates to a structure of a flame-retardant and waterproof composite shielding armored cable for a monitoring system of a transportation oil pipeline, which belongs to the technical field of cables.

Background technique

With the rapid development of the petroleum industry, in order to adapt to the construction projects of the West-to-East Oil Pipeline and the North-to-South Oil Pipeline, the demand for supporting cables for the monitoring and control network line installation of the remote oil pipeline monitoring system is increasing. Combustible, explosive, easy to corrode, water seepage, strong electromagnetic and static interference, and ground pressure and other harsh factors, the existing cable core is composed of an inner lining layer, an armor layer and an outer sheath on the cable core formed by insulated wire cores. Ordinary cables cannot meet the requirements of the project, and there is an urgent need for cables with flame retardancy, explosion-proof, corrosion resistance, anti-interference, waterproof, and external shock resistance to meet the requirements of cables for remote oil pipeline safety monitoring system equipment.

Contents of the invention

The purpose of this utility model is to meet the requirements of cables used in remote oil pipeline safety monitoring system equipment and meet the needs of the market. Water-blocking composite shielded armored measurement and control cable for road monitoring system.

The purpose of this utility model is achieved through the improvement of the existing cables. The remote oil pipeline monitoring system uses a flame-retardant and waterproof composite shielded armored measurement and control cable, including an inner sheath arranged on a cable core formed by insulating wire cores, The armor layer and the outer sheath are characterized in that there are a plurality of insulated core pairs with sub-shielding layers to form a cable core, and the cable core is sequentially provided with wrapping flame-retardant polyester tapes from the inside to the outside. The isolation layer, the overall shielding layer of aluminum tape wrapped longitudinally, the flame-retardant layer of high flame-retardant glass fiber tape wrapped around, the water-blocking layer of water-blocking cloth tape wrapped around, and the armor layer of galvanized steel tape wrapped around, in the water-blocking The flame-retardant polyethylene inner sheath is extruded between the armor layer and the armor layer, and the flame-retardant PVC outer sheath is extruded on the outer surface of the armor layer.

The insulated wire core is composed of an oxygen-free copper wire conductor whose outer surface is extruded with flame-retardant low-smoke and halogen-free polyolefin. The itemized shield is a layer of tinned copper wires braided over an insulated core pair group.

The utility model has the advantages of reasonable and simple structure, easy manufacture, low cost and good performance. The insulated wire core is made of an oxygen-free copper wire conductor whose outer surface is extruded with an insulating layer of low-smoke, flame-retardant, halogen-free polyolefin. Flame-retardant polyester with isolation layer, aluminum overall shielding layer, high-flame-retardant glass fiber with flame-retardant layer, water-blocking cloth with water-blocking layer, so that the cable has good flame-retardant, explosion-proof, corrosion-resistant, anti-interference, and waterproof and other performance. Galvanized steel tape armor layer, flame-retardant polyethylene inner sheath, flame-retardant PVC outer sheath, enhance the impact resistance of the cable, explosion-proof, anti-interference, waterproof and other performances, the cable is a remote oil pipeline monitoring system ideal cable for use.

Description of drawings

Fig. 1 is the structural representation of the utility model;

In the figure: 1 conductor, 2 insulation layer, 3 phase-splitting shielding layer, 4 isolation layer, 5 total shielding layer, 6 flame retardant layer, 7 water blocking layer, 8 inner sheath, 9 armoring layer, 10 outer sheath.

Detailed ways

The oxygen-free copper wire is used as the conductor 1, and the flame-retardant cross-linked polyolefin insulating layer 2 is wrapped on the oxygen-free copper wire conductor to form an insulated wire core. Two wire cores are used as a pair twisted into a twisted wire group, and the tinned copper wire itemized shielding layer 3 is braided on the twisted wire group. Multiple twisted wires with individual shielding layers are used to form a cable, and the cable core is wrapped with a flame-retardant polyester tape isolation layer 4, a longitudinal aluminum tape overall shielding layer 5, and a high flame-retardant glass fiber wrapping in turn. With flame retardant layer 6, wrapping water blocking cloth with water blocking layer 7, wrapping galvanized steel tape armor layer 8, extruded flame retardant polyethylene inner sheath 9, extruded flame retardant PVC outer sheath 10 .

Claims (3)

1. A flame-retardant and waterproof composite shielded armored measurement and control cable for a remote oil pipeline monitoring system, comprising an inner sheath, an armor layer and an outer sheath arranged on a cable core formed from an insulated wire core, and is characterized in that There are multiple insulated core pairs with sub-shielding layers to form the cable core of the cable. The cable core is provided with a wrapping flame-retardant polyester tape isolation layer, a longitudinally wrapped aluminum tape overall shielding layer, and Wrapped high flame-retardant glass fiber with flame-retardant layer, wrapped with water-blocking cloth with water-blocking layer and wrapped with galvanized steel tape armor layer, extruded flame-retardant polymer between the water-blocking layer and armor layer Vinyl inner sheath, extruded flame retardant polyvinyl chloride outer sheath on the outer surface of the armor layer. 2. The flame-retardant and waterproof composite shielded armored measurement and control cable for remote oil pipeline monitoring system according to claim 1, characterized in that the insulated wire core is extruded by the outer surface of the oxygen-free copper wire conductor, flame-retardant and low-smoke Composed of halogen-free polyolefins. 3. The flame-retardant and waterproof composite shielded armored measurement and control cable for remote oil pipeline monitoring system according to claim 1, characterized in that the sub-item shielding layer is tin-plated wire braided on the twisted pair of insulated wire cores. Copper layer.