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Self-cooling cable and cooling method thereof

A self-cooling and cable technology, applied in the direction of insulating cables, cables, circuits, etc., can solve the problems of difficult fire extinguishing, cable breakdown, cable spontaneous combustion hazards, etc., to achieve automatic control of sliders, avoid rainwater entry, and improve ventilation effects Effect

Active Publication Date: 2015-04-29
湘潭神舟特种电缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In summer, the outdoor temperature is too high, and summer is the peak of electricity consumption, and the cable load is too large. With the continuous increase of electrical equipment in the line, the current that the cable bears is also increasing. With the passage of time, the cable has aging phenomenon, and its carrying capacity will also be reduced to varying degrees. Once the current exceeds the rated carrying capacity, the cable will heat up. After reaching a certain temperature, the cable will break down and burn out. In severe cases, it will cause a fire. Spontaneous combustion of cables is very dangerous, and it is difficult to extinguish the fire
In view of the fact that the fire cable has electricity, it cannot be extinguished with water, and if there are flammable materials around, or other cables are ignited, causing the fire to burn to the building, it is easy to cause a fire situation that is difficult to control
Not only does it delay people's electricity consumption time in high temperature days, but it can even endanger lives. Therefore, how to cool down high-altitude cables is a very important issue

Method used

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  • Self-cooling cable and cooling method thereof
  • Self-cooling cable and cooling method thereof

Examples

Experimental program
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Effect test

specific Embodiment 1

[0013] Specific embodiment 1: the cable structure of the present invention comprises a plurality of cable cores with insulating layers, wrapping tapes and outer sheath layers, each cable core is provided with an insulating layer, and multiple cable cores with insulating layers are placed on the winding Inside the tape layer, the outer sheath layer is outside the wrapping tape layer. The cable structure also includes a hollow ventilation layer, which is used to take away the heat generated when the cable is working, so as to prevent the cable from breaking down and burning if the temperature is too high.

[0014] The hollow ventilation layer is a ventilation pipe with a dot structure, and a support plate is provided inside the pipe to avoid extrusion of the cable core and deformation of the ventilation pipe. Such as figure 1 , the support pipe divides the ventilation pipe into several cavities, and the cable cores with insulating layers are placed in the cavities at intervals ...

specific Embodiment 2

[0018] Specific embodiment 2: as figure 2 The structure of the ventilation pipe and the support plate in the hollow ventilation layer is the same as that of Embodiment 1, but the cables with insulating layers are placed on the periphery of the ventilation pipe. This structure is easier to process than Embodiment 1.

specific Embodiment 3

[0019] Specific embodiment 3: as image 3 , the hollow ventilation layer includes a ventilation pipe, the section of the ventilation pipe is a ring structure, including an inner pipe and an outer pipe, a support plate is provided between the inner pipe and the outer pipe, and in the cavity separated by the support plate, insulation layers are placed at intervals The cable core, the ventilation pipe and the support plate are all mesh structures. This scheme has a large ventilation area of ​​the cable core and a good ventilation effect.

[0020] The opening and closing of the fan and the working power are controlled by the PLC controller, and the PID algorithm is set in the PLC controller to control the opening, closing and working efficiency of the fan.

[0021] First set a target temperature difference, judge whether to turn on the fan by the air temperature inside the cable transmitted by the temperature sensor, set e as the target temperature, and set e at the same time 1 ...

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Abstract

The invention discloses a self-cooling cable and a cooling method thereof. The self-cooling cable can realize self-cooling. The cable comprises a plurality of cable cores with insulation layers, wherein the insulation layers are wrapped with wrapping belt layers and external sheath layers, hollow ventilation layers for heat dissipation are arranged in the cable, the hollow ventilation layers are arranged in the wrapping belt layers, through holes are formed in the cable at intervals, and the through holes penetrate through the wrapping belt layers and the external sheath layers from the hollow ventilation layers, therefore, heat dissipation of the cable is realized by using the through holes. The cable disclosed by the invention further comprises a PLC (programmable logic controller), a temperature and water amount sensor and a sliding block for blocking small holes to be waterproof, thereby alarming when the temperature is too high, realizing automatic control of the sliding block to block the through holes in rainy days, and preventing rainwater from entering the cable and destructing the cable. The self-cooling cable disclosed by the invention has a simple structure, is easy to implement and can further realize fully automated control.

Description

technical field [0001] The invention belongs to the technical field of cables, and in particular relates to a self-cooling cable and a cooling method thereof. Background technique [0002] In summer, the outdoor temperature is too high, and summer is the peak of electricity consumption, and the cable load is too large. With the continuous increase of electrical equipment in the line, the current that the cable bears is also increasing. With the passage of time, the cable has aging phenomenon, and its carrying capacity will also be reduced to varying degrees. Once the current exceeds the rated carrying capacity, the cable will heat up. After reaching a certain temperature, the cable will break down and burn out. In severe cases, it will cause a fire. The spontaneous combustion of the cable is very dangerous, and it is difficult to extinguish the fire. In view of the fact that the fire cable has electricity, it cannot be extinguished with water. In addition, if there are flam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/42H01B7/282G05D23/20
CPCY02A30/14
Inventor 不公告发明人
Owner 湘潭神舟特种电缆有限公司
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