Low-temperature self-heating type cable anti-freezing protective sleeve

An anti-freeze protection and self-heating technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of being easily damaged by freezing and cracking, shortening the service life of cables, and unable to heat the cables. Service life and effect of improving protection

Inactive Publication Date: 2020-11-17
陆则龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to prevent the cable from being damaged, a cable protective sheath is usually provided on the outer surface of the cable, but the cable protective sheath in the prior art usually only has functions such as insulation, waterproof, and corrosion resistance, and when the temper

Method used

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  • Low-temperature self-heating type cable anti-freezing protective sleeve
  • Low-temperature self-heating type cable anti-freezing protective sleeve
  • Low-temperature self-heating type cable anti-freezing protective sleeve

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0041] Example 1:

[0042] See Figure 1-7 , A low-temperature self-heating cable antifreeze protective cover, including a cable and a protective cover mechanism, the protective cover mechanism is sleeved on the outside of the cable, and the protective cover mechanism includes a water absorption layer 001, a trigger layer 002, a heating layer 003, and an insulation layer 004, The insulating layer 005 and the trigger layer 002 include a double-layer hollow first elastic sleeve 201. The inside of the first elastic sleeve 201 is filled with a first filler 202. The first filler 202 is nickel sulfide powder and a nickel sulfide material. The filler 202 has the special performance of thermal shrinkage and cold expansion. Under low temperature conditions, the cable will shrink to a certain extent when cold, while the first filler 202 will expand, so that after the cable shrinks, the protective sleeve mechanism can be tightly attached The cable improves the protection effect of the cabl...

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PUM

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Abstract

The invention discloses a low-temperature self-heating type cable anti-freezing protection sleeve, which belongs to the technical field of cable protection sleeves, and comprises a cable and a protection sleeve mechanism, the protection sleeve mechanism sleeves the outer side of the cable, and the protection sleeve mechanism comprises a water absorption layer, a trigger layer, a heating layer, a thermal insulation layer and an insulation layer, the triggering layer comprises a double-layer hollow first elastic sleeve, the first elastic sleeve is filled with a first filler, the inner side wallof the first filler is filled with a plurality of spherical air bags which are annularly and evenly distributed, the outer side of the triggering layer is fixedly connected with a heating layer, and the heating layer comprises a double-layer hollow second elastic sleeve; and the second elastic sleeve is filled with a second filling agent. When the temperature is low, heat can be generated spontaneously and transferred to the surface of the cable, the surface temperature of the cable is increased, the cable is prevented from being frozen, cracked and damaged, the cable is protected more comprehensively, and the service life of the cable is prolonged.

Description

technical field [0001] The invention relates to the technical field of cable protective sheaths, in particular to a low-temperature self-heating antifreeze protective sheath for cables. Background technique [0002] Power cables are cables used to transmit and distribute electric energy. Power cables are often used in urban underground power grids, outgoing lines of power stations, internal power supply of industrial and mining enterprises, and underwater transmission lines across rivers and seas. In power lines, the proportion of cables is gradually increasing. Power cables are cable products used to transmit and distribute high-power electric energy in the main line of the power system, including 1-500KV and above various voltage levels and various insulated power cables. Cable is an indispensable basic equipment for energy transmission and information transmission. Today, with the rapid development of social informatization and electrification, wire and cable have become...

Claims

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Application Information

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IPC IPC(8): H01B7/28H01B7/42H01B7/02H01B7/282
CPCH01B7/02H01B7/28H01B7/282H01B7/428Y02A30/14
Inventor 陆则龙
Owner 陆则龙
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