Hydrate temperature control and heat dissipation low-voltage cable

Abstract

The present invention relates to a hydrate temperature control heat dissipation low-voltage cable. The whole cable is formed by a conductor, a first nano-graphite coating, a rubber insulation layer, an inner shielding layer, a glass fibre protection layer, a hydrate material layer, a second nano-graphite coating, a belting layer, an outer shielding layer, an inner sheath layer, an armor layer andan outer sheath layer. The cable employs the high heat storage density of the hydrate and the good heat-transfer features of nano particles to fill hydrate materials at a twisting gap of a shielding insulation wire, and the nano-graphite coating is added at the inner walls of the conductor outer layer and the belting layer to effectively control the cable temperature rise, improve the carrying capacity and improve the heat dissipation performance. The defects are solved that a traditional low-voltage cable allow the temperature itself to rise caused by heating itself when large-current load work is performed to decrease the insulation level of the cable, shorten the life, increase the device fault rate and increase the fire risk, and therefore, the hydrate temperature control heat dissipation low-voltage cable is especially suitable for buried cables with large heat values caused by an instant peak current and intermittent load.

Description

technical field [0001] The invention relates to the technical field of hydrate application, in particular to a hydrate temperature-controlling and heat-dissipating low-voltage cable. Background technique [0002] Cables usually consist of a core for transmitting power or electrical signals and a sheath for protection and insulation. [0003] With the rapid development of cable transmission technology and electronic device technology, the ampacity of cables is developing in the direction of continuous high current. How to realize the rapid heat dissipation of high-current flow cables that are getting smaller and thinner is facing a huge challenge. The charging stability of the cable connection is exponentially related to its operating temperature, and a small temperature fluctuation (such as a temperature rise of ten degrees) will obviously affect the safety of electronic device charging. In addition, when the temperature of the cable connection equipment is too high during...

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Problems solved by technology

The effect of this solution on the improvement of cable heat dissipation and carrying capacity is very significant, but the design of this solution is relatively complicated, and an additional coolant circulation system needs to be added, which consumes a lot of energy, and the cost of use is high, and the problem of coolant sealing and insulation is also serious. not well resolved

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