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Environment-adaptive cable channel and construction method thereof

A self-adaptive, cable trench technology, applied in the direction of cable installation, ground cable installation, cable laying equipment, etc., can solve problems affecting the performance of the sheath, and achieve the effect of avoiding aging and cracking

Active Publication Date: 2019-02-19
国网河南省电力公司兰考县供电公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It increases the anti-crack performance by improving the cable insulation sheath, but it will affect the performance of the sheath in winter low temperature environment
[0004] At present, there are no effective measures to prevent freezing in winter and heat dissipation in summer for underground cables

Method used

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  • Environment-adaptive cable channel and construction method thereof
  • Environment-adaptive cable channel and construction method thereof
  • Environment-adaptive cable channel and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1, this embodiment provides an environment-adaptive cable trench, including a trench 1, a cement concrete layer 2 is provided on the bottom and sides of the trench 1, and a waterproof layer 3 is provided on the inner surface of the cement concrete layer 2, so that The bottom of the waterproof layer 3 is provided with a cable threading pipe 5 in the groove 1 through a support mechanism, and the outer side of the cable threading pipe 5 is provided with a thermal insulation filler 4 in the groove 1, and an overburden layer is arranged above the thermal insulation filler 4;

[0042] A heat dissipation mechanism is arranged in the cable passage 5, and the heat dissipation mechanism includes a cylindrical heat dissipation chamber 19 arranged on the cable passage 5, a CT energy-taking mechanism and a ventilation mechanism are arranged in the heat dissipation chamber 19, and the thermal insulation filler 4 Corresponding to the cooling cavity 19, an inspection channel ...

Embodiment 2

[0047] Embodiment two, its difference with embodiment one is:

[0048] The diameter of the heat dissipation chamber 19 is larger than the diameter of the cable passage 5, and the heat dissipation chamber 19 is integrally formed with the cable passage 5. The upper part of the heat dissipation chamber 19 is provided with an inspection hole 17 and a seal is provided corresponding to the inspection hole 17. Cover plate 16, the sealing cover plate 16 is an arc surface structure fit with the cooling cavity 19, the area of ​​the sealing cover plate 16 is larger than the area of ​​the inspection hole 17, and the lower surface of the edge of the sealing cover plate 16 is provided with a sealing strip 18 , the sealing cover plate 16 is bolted to the cooling cavity 19 .

[0049] The CT energy-taking mechanism includes a first C-shaped iron core 26 and a second C-shaped iron core 22 sheathed on the cable 23, and the ends of the first C-shaped iron core 26 and the second C-shaped iron core...

Embodiment 3

[0051] Embodiment 3. This embodiment provides a construction method for an environment-adaptive cable trench, including the following steps:

[0052] S1. To excavate the trench, first complete the excavation of the trench as a whole, and then cast the cement concrete layer to support the bottom and side walls of the trench;

[0053] S2. Do a good job of waterproofing. After the cement concrete layer is solidified, apply asphalt to the surface;

[0054] S3. After the asphalt coating is dry, gradually set up the supporting mechanism in the trench and start fixing the cable through the pipe;

[0055] S4. Divide the cable conduits into several sections and erect them in turn. Each section contains two support mechanisms and cable conduits that need to be fixed on the two support mechanisms. Fix the cable conduits of the first section to the two supports of the first section. After the mechanism is installed, start to pour the foam concrete of the first section;

[0056] S5. Afte...

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Abstract

The invention provides an environment-adaptive cable channel and a construction method thereof. The environment-adaptive cable channel comprises a channel body; a cement concrete layer is arranged atthe bottom and side of the channel body; the inner surface of the cement concrete layer is provided with a waterproof layer; the bottom of the waterproof layer is provided with a cable duct in the channel body through a support mechanism; an insulation filler is arranged in the channel body outside the cable duct; an earthing layer is arranged above the insulation filler; a heat-dissipating mechanism is arranged in the cable duct. The environment-adaptive cable channel can prove warmth retention for cables in winter so as to prevent aging and cracking of an insulating sheath, can provide ventilation and heat dissipation in summer to prevent the performance of cables from being affected, and is suitable for popularization and use in the south.

Description

technical field [0001] The invention relates to the technical field of cable trenches, in particular to an environment-adaptive cable trench and a construction method thereof. Background technique [0002] The cable trench is an underground pipeline for laying and replacing electric power or telecommunication cable facilities, and it is also an enclosure structure for the cable facilities to be laid. There are rectangular, circular, arched and other pipeline structures. The cable is insulated with an insulating sheath, but in cold areas, the lower temperature will harden or crack the insulating sheath, greatly reducing the service life of the cable. Therefore, the cable must be protected from freezing in cold areas. But in the southern summer, the climate is very hot, the cables in the cable trench will heat up, and the heat will not be easily dissipated and will cause damage to the cables. Therefore, a cable trench that keeps warm in winter and dissipates heat in summer is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G9/02H02G1/08E02D29/00
CPCE02D29/10H02G1/08H02G9/02H02G9/025
Inventor 刘慧李志鹏张明李红琴赵博杰
Owner 国网河南省电力公司兰考县供电公司
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