Glue pouring type insulating sealing butt joint method for underwater cable connection

Abstract

The invention belongs to the technical field of underwater cable sealing installation and relates to a glue pouring type insulating sealing butt joint method for underwater cable connection. The method includes the steps that firstly, a number I plug and a number II plug which are matched are connected with the two ends of a sealed pipe respectively, two cable connectors obtained after repairing or shearing penetrate into the sealed pipe from exterior to interior from the number I plug and the number II plug, and after the two cable connectors are connected according to a standard cable connection requirement when the number I plug and the number II plug are opened in a twisting mode, binding and winding straps are used for winding and binding; secondly, the bound cable connectors are arranged in the middle of the sealed pipe, and a number I wire penetrating hole and a number II wire penetrating hole in the two ends of the sealed pipe are sealed through SR plastic filler; then sealing glue is poured in the sealed pipe so that gaps between the exteriors of the binding and winding straps and the sealed pipe can be filled with the sealing glue, and finally the number I plug and the number II plug are screwed so that the interior of the sealed pipe are sealed as a whole. The method has good sealing performance, insulating performance and durability, operation is easy and convenient, cost is low, and the application range is wide.

Description

Technical field: [0001] The invention belongs to the technical field of underwater cable sealing and installation, and in particular relates to a glue-filling insulating sealing butt joint method for underwater cable connection, which not only facilitates the sealing connection of the broken end of the underwater cable, but also has good corrosion resistance and insulation. Background technique: [0002] Underwater cables refer to cables wrapped with insulating materials, which are generally laid on the seabed or freshwater waters to realize the transmission of electrical signals. Because of their good waterproof and corrosion resistance, they are widely used in diving, coal mines, offshore drilling, etc. technology field. However, because the cables laid underwater are in a complex water quality environment for a long time during use, they are very easy to be broken / damaged due to corrosion or pressure, and even fail, so they need to be inspected, repaired or replaced freq...

AI Technical Summary

Problems solved by technology

However, because the cables laid underwater are in a complex water quality environment for a long time during use, they are very easy to be broken / damaged due to corrosion or pressure, and even fail, so they need to be inspected, repaired or replaced frequently, but the replacement method is adopted. Not only the cost is high, the period is long, but also it is not necessary to replace a large section of cables in most fault situations; although the maintenance method is cost-effective, time-consuming and suitable for most fault situations, it is always necessary to seal the cable at the break. It is a major technical problem that plagues this repair method. Due to the special requirements of the underwater environment, there are high requirements for the waterproof, sealing, and insulation of the joints at the fractured joints. If the connection and sealing of the joints at the broken joints are not handled properly , not only can't achieve waterproof, insulating and sealed connection to solve the fault, but also bring safety hazards to the operation of the entire cable project

[0003] Although there have been many studies on cable joint insulation and sealing wiring in the prior art, for example, Chinese patent ZL201520228142.3 discloses a cable joint insulation and sealing heat sealing pliers, which are engaged by the hinged first pliers body and the second pliers body In order to realize the sealing and heat sealing of the insulating sleeves of cable joints with various diameters; another example is a water-cooled cable joint disclosed in Chinese patent ZL201520498784, a cable joint disclosed in Chinese patent ZL201520332441.1, and a cable disclosed in Chinese patent ZL201310627755.X Joint fixing buckles, etc., cannot meet higher requirements for sealing and insulating treatment of the joints, making the sealing, corrosion resistance and practicability of the joints poor. Therefore, the present invention designs a new type of The glue-filling insulation sealing butt joint method for underwater cable connection can not only achieve better sealing, insulation and durability, but also is easy to operate, low in cost and wide in application

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