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Cable for use in power pipeline

A technology for power pipes and cables, applied in the field of power and cables, can solve the problems of increasing the cost of pipes, the processing speed and difficulty of pipes, the separation of cables from the inner wall of pipes, and the reduction of cohesive force, etc., and achieves simple structure, high qualified rate of finished products, low cost effect

Active Publication Date: 2014-08-06
STATE GRID SHANDONG ELECTRIC POWER COMPANY RIZHAOPOWER SUPPLY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, the methods for fixing cables in relatively large-diameter pipes mainly include: thickening the wall of the pipe, forming cable holes in the wall, and passing the cables into the cable holes. It is suitable for round cables, but the wall of the pipe is also thickened, which will increase the cost of the pipe and the processing speed and difficulty of the pipe. After the pipe is installed, the cable can only be threaded after disconnecting part of the pipe. Therefore, Very inconvenient; when the cable is fixed on the inner wall of the pipe, it is fixed by bonding, nailing, etc. However, due to the long-term existence of moisture or gas in the pipe, the bonding force will gradually decrease after the bonding method is used , eventually causing the cable to detach from the inner wall of the pipe; the way of nailing and fixing usually requires the wall of the pipe body to be thicker, so that it is not easy to damage the pipe body when nailing, but usually, the wall of the pipe to be laid is not as thick as expected, so , Nails often penetrate or break the pipe wall, causing safety hazards in liquid or gas transportation

Method used

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  • Cable for use in power pipeline
  • Cable for use in power pipeline
  • Cable for use in power pipeline

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] please see Figure 1 to Figure 2 ; A cable used in power pipelines, which includes a cable core 4, an outer sheath 2 covering the cable core, a fixed body 1, and a transition body 3 connecting the fixed body and the outer sheath, characterized in that: Both the body and the transition body extend along the axial direction of the cable core, and the cable core contains conductors or signal transmission elements. The outer sheath, the fixing body, and the transition body are integrally formed and are of the same material; the fixing body is Cylindrical shape of fan ring, the transition body is located directly below the fixed body, the fixed body and the transition body extend continuously or intermittently along the axis of the cable core, and on the orthographic projection of the plane perpendicular to the axis of the cable core, The transition body is coincident; the axis of the fixed body is coincident and parallel to the axis of the cable core, the material of the ou...

Embodiment 2

[0034] please see Figure 3 to Figure 4 , a cable used in power pipelines, basically the same as the implementation example 1, the difference is that: the fixed body has a reinforcement 5 inside, and the reinforcement is a single steel wire or a single steel strip.

Embodiment 3

[0036] please see Figure 5 , a cable used in power pipelines, basically the same as the implementation example 1, the difference is that: the fixed body and the transition body extend intermittently along the axis of the cable core, and in the plane perpendicular to the axis of the cable core On the orthographic projection, the transition body is coincident; the axis of the fixed body is coincident and parallel to the axis of the cable core; the distance between adjacent fixed bodies is 50 mm; the speed of producing the cable is 20 m / min, and the finished product is qualified Rate ≥ 75%.

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Abstract

The invention belongs to the technical fields of power and cables, and particularly relates to a cable for use in a power pipeline. The cable comprises a cable core, an outer jacket coating the cable core, a fixing body, and a transition body for connecting the fixing body with the outer jacket, and is characterized in that both the fixing body and the transition body extend along the axis direction of the cable core; a conductor or a signal transmission element is arranged in the cable core; the outer jacket, the fixing body and the transition body are formed integrally, and are made of the same material. The cable has the major beneficial effects of simple structure, low cost, easiness in manufacturing, high product yield and easiness in pavement and installation.

Description

technical field [0001] The invention belongs to the technical field of electric power and cables, and in particular relates to a cable used in electric power pipelines. Background technique [0002] With the construction of urbanization and modernization, the use of pipelines and cables at home and abroad is increasing. In China, the wire and cable industry has developed into the second largest industry after the automobile industry. The existing wires and cables mainly include cables, optical cables, Composite cables, etc., are collectively referred to as cables. There are three major types of cable erection methods: pipeline, overhead, and direct burial. Therefore, the country has issued corresponding policies. For newly erected cables, the preferred way to enter the ground; the main ways to enter the ground are direct burial and pipelines. Backfill the protective layer on the protective layer, fill the protective layer with soil or buildings such as cement or directly ba...

Claims

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Application Information

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IPC IPC(8): H01B7/40
Inventor 龚利芬
Owner STATE GRID SHANDONG ELECTRIC POWER COMPANY RIZHAOPOWER SUPPLY