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Silicone oil shear thickening liquid-based cable joint explosion-proof device

A technology of cable joints and explosion-proof devices, which is applied in the direction of cable joints, etc., can solve the problems of narrowing the diffusion range of cable joints, flammable and explosive shear thickening liquid, and difficult heat dissipation of cable joints, so as to prevent large-scale power outages and improve mechanical performance. Good, anti-diffusion effect

Inactive Publication Date: 2018-01-12
国网陕西省电力公司西安供电公司 +1
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a cable joint explosion-proof device based on silicone oil shear thickening liquid, to solve the problem that the cable joint is not easy to dissipate heat in the existing cable joint explosion-proof device, and can reduce the relative damage caused by the explosion of the cable joint. The probability of damage to adjacent cables can reduce the diffusion range of cable joint explosions; at the same time, the invention can also solve the problem that traditional shear thickening fluids are easy to decompose in long-term high-temperature environments to produce flammable and explosive by-products

Method used

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  • Silicone oil shear thickening liquid-based cable joint explosion-proof device
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  • Silicone oil shear thickening liquid-based cable joint explosion-proof device

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Embodiment Construction

[0029] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] see figure 1 and figure 2 , a cable joint explosion-proof device based on silicone oil shear thickening liquid of the present invention, comprising an inner protective layer 1, a middle protective layer 4 and an outer protective layer 5; the inner protective layer 1, the middle protective layer 4 and the outer protective layer 5 are all It is cylindrical, and the central axes of the inner protective layer 1, the middle protective layer 4 and the outer protective layer 5 coincide, and the middle protective layer 4 is made of polypropylene material; the inner wall of the inner protective layer 1 is fixed with a plurality of central supports 2. The material of the central support 2 is polytetrafluoroethylene, and the length of each central support 2 is 4cm. The free ends of multiple central supports 2 are all connected to the outer surf...

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Abstract

The invention discloses a silicone oil shear thickening liquid-based cable joint explosion-proof device. The silicone oil shear thickening liquid-based cable joint explosion-proof device comprises aninner protecting layer, a middle protecting layer and an outer protecting layer, wherein the inner wall of the inner protecting layer is fixedly provided with a plurality of central support units, andthe inner protecting layer is filled with silicon oil; the middle protecting layer comprises a honeycomb structure and is filled with silicon oil shear thickening liquid; the outer protecting layer is fixed onto the outer wall of the middle protecting layer in a sleeve mode and filled with silicon oil. The silicone oil shear thickening liquid-based cable joint explosion-proof device can form a certain gap from a cable joint to improve the heat dissipation rate of the cable joint; the silicon oil and the silicon oil shear thickening liquid which are filled inside the silicone oil shear thickening liquid-based cable joint explosion-proof device can avoid explosive diffusion as well as large-area power outage.

Description

technical field [0001] The invention belongs to the field of cable joints, in particular to an explosion-proof device for cable joints based on silicone oil shear thickening liquid. Background technique [0002] During long-term operation, cable intermediate joints are prone to performance degradation due to electrical, thermal, mechanical, chemical and other factors. The continuous decline in its insulation performance may eventually lead to breakdown and explosion. There are many cables in the cable trench, and the explosion of the cable can easily ignite the adjacent cables. In severe cases, there will be a situation of "burning and burning", and the sharp expansion of the scope of the accident will cause serious economic losses and adverse social impacts. [0003] At present, in order to prevent the explosion phenomenon of the cable joint, the protective method of installing an explosion-proof device at the cable joint is generally adopted. The existing explosion-proof ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G15/18C08K3/36C08L83/04
Inventor 郑建康赵艾萱徐龙苏小婷林涛南海李嘉明邓军波张冠军郑琳子
Owner 国网陕西省电力公司西安供电公司
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