Saline-alkali-resistant soil buried protection pipe integrated control cable

Abstract

The invention discloses a saline-alkali-resistant soil buried protection pipe integrated control cable. The cable comprises a cable body, a plurality of groups of cable cores are uniformly distributed in the cable body, the outer rings of the plurality of groups of cable cores are wrapped with a belting layer, the outer side of the belting layer is provided with an aramid fiber reinforcement layer, the outer side of the aramid fiber reinforcement layer is sleeved with an expansion sheath, the expansion sheath is attached to the inner side of a metal shielding pipe, a blocking layer is arranged on the outer side of the metal shielding pipe, and a low-density oil cavity is formed in the lower half area between the blocking layer and the metal shielding pipe. According to the saline-alkali-resistant soil buried protection pipe integrated control cable, the cable and the outer protection pipe are combined together to form an integrated structure, on one hand, the procedure of independently sleeving the protection pipe is reduced, on the other hand, the metal pipe is directly used as an armored shielding layer of the cable, the procedure and materials for installing the armored shielding layer of the cable are reduced, and the cable is suitable for different working conditions and brings better use prospects.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a saline-alkali-resistant buried protection tube integrated control cable. Background technique [0002] my country's saline-alkali geological area is very large, and the depth of buried cables should be no less than 0.7m and no more than 3m from the ground to the cable sheath. It is easily corroded by salt and alkali components, especially the outer metal tube used to protect the cable. Once exposed to strong alkaline chemical components, the corrosion of the metal tube will be accelerated, and the protective layer of the cable will be damaged, resulting in a short service life of the cable. , has to be re-laid, which has brought certain adverse effects during use. Therefore, we propose a saline-alkali-resistant integrated control cable with buried protection tube. Contents of the invention [0003] The main purpose of the present invention is to provide a saline-alkali resistan...

AI Technical Summary

Problems solved by technology

[0002] my country's saline-alkali geological area is very large, and the depth of buried cables should be no less than 0.7m and no more than 3m from the ground to the cable sheath. It is easily corroded by salt and alkali components, especially the outer metal tube used to protect the cable. Once exposed to strong alkaline chemical components, the corrosion of the metal tube will be accelerated, and the protective layer of the cable will be damaged, resulting in a short service life of the cable. , has to be re-laid, which has brought certain adverse effects during use. Therefore, we propose a saline-alkali-resistant buried protective tube integrated control cable

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