Non-Newtonian fluid cable and installation method thereof

Abstract

A non-Newtonian fluid cable comprises a cable core which is formed by twisting a plurality of wires. A reinforcing fiber wrapping layer is arranged outside the cable core; a water blocking layer is arranged outside the reinforcing fiber wrapping layer; a waterproof layer A is arranged outside the water blocking layer; a polyvinyl alcohol particle layer is arranged outside the waterproof layer A; a plurality of heating resistance wires are arranged in the polyvinyl alcohol particle layer; and water is wrapped in polyvinyl alcohol particles. The polyvinyl alcohol particles are not dissolved in water at the temperature below 60 DEG C. A waterproof layer B is arranged outside the polyvinyl alcohol particle layer, a heat insulation layer is arranged outside the waterproof layer B, and a sheath layer is arranged outside the heat insulation layer. According to the invention, by improving the internal structure design and the installation process of the cable, the problem that the subsequent extrusion, transportation and installation of the outer sheath are influenced because the non-Newtonian fluid is arranged in the cable is solved.

Description

technical field [0001] The invention belongs to the technical field of cables, and in particular relates to a non-Newtonian fluid cable and an installation method thereof. Background technique [0002] In the flow state equation of non-Newtonian fluid, if 1<n<∞, it is called dilatant flow. The relationship curve between shear stress and shear rate passes through the origin and bends upward away from the ε axis. With the increase of shear stress or shear rate, the apparent viscosity η increases gradually. The intuitive performance is: when encountering a huge instantaneous impact force, the expansion-plastic non-Newtonian fluid will become very hard, so that it can resist the impact. Taking advantage of such properties, many cables are equipped with non-Newtonian fluids to improve the impact resistance of the cables, thereby effectively protecting the inner cable core. [0003] However, there are the following problems in actual production and use: the normal state o...

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Problems solved by technology

[0005] In order to meet the above requirements, the present invention provides a non-Newtonian fluid cable and its installation method. Through the improvement of the internal structure design and installation process of the cable, it solves the problem that the non-Newtonian fluid installed in the cable affects the subsequent outer sheath extrusion, transportation and installation problem

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