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Power supply device for seafloor power cable failure diagnosis capable of generating electricity through temperature difference

A technology for submarine power cables and power supply devices, which is applied in fault locations, generators/motors, piezoelectric effect/electrostrictive or magnetostrictive motors, etc. and other problems, to achieve the effect of low cost, small size and simple maintenance.

Inactive Publication Date: 2013-05-15
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To solve long-distance submarine cable fault pre-diagnosis and accurate fault location, it is necessary to use multi-type sensor testing technology, and the work of various sensors is inseparable from the working power supply, but the current general power supply is not suitable for the operating conditions of the seabed

Method used

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  • Power supply device for seafloor power cable failure diagnosis capable of generating electricity through temperature difference
  • Power supply device for seafloor power cable failure diagnosis capable of generating electricity through temperature difference
  • Power supply device for seafloor power cable failure diagnosis capable of generating electricity through temperature difference

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Embodiment

[0019] The heat transfer layer 1 is a regular hexahedral metal piece with a round hole in the center. For the convenience of on-site construction, the regular hexahedral metal piece with a round hole in the center is made of two diagonally cut squares with a regular hexahedron surface as the boundary. The waist trapezoidal parts are combined, and the diameter of the center is slightly smaller than or equal to the diameter of the cable. When installing, coat the inner side of the heat transfer layer 1 of the metal casting with heat-conducting silica gel with good heat dissipation, and attach the two independent metal parts around the submarine cable. Connect the joints of two independent metal parts on the outer surface. The material of heat transfer layer 1 can be made of metal with good thermal conductivity, light weight and low cost. If aluminum is used, the material of heat insulation layer 2 can be selected with good heat insulation effect. Materials, such as rubber, are su...

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Abstract

The invention discloses a power supply device for seafloor power cable failure diagnosis capable of generating electricity through temperature difference. The power supply device for seafloor power cable failure diagnosis capable of generating electricity through temperature difference comprises a heat transmission layer, heat insulating layers, five temperature difference generating slices, a fixing ring, a heat dissipation layer and a stabilized voltage supply encapsulated circuit. The five temperature difference generating slices and one face of the stabilized voltage supply encapsulated circuit are respectively pasted on one side face of the heat transmission layer, the other faces of the five temperature difference generating slices and the stabilized voltage supply encapsulated circuit are respectively pasted with the heat dissipation layers, and the heat insulation layers are arranged between two adjacent temperature difference generating slices and between the temperature difference generating slices and the stabilized voltage supply encapsulated circuit. The temperature difference generating slices, the heat dissipation slice and the stabilized voltage supply encapsulated circuit are fixed through fixed rings. The five temperature difference generating slices are connected in series in sequence and two ends of the temperature difference generating slices are connected with the stabilized voltage supply encapsulated circuit. The power supply device for seafloor power cable failure diagnosis is capable of generating electricity through temperature difference and has the advantages of being small in size, simple in installation and maintenance work, low in cost and good in reliability of arrangement working.

Description

technical field [0001] The invention relates to a power supply device for submarine power cable fault diagnosis based on temperature difference power generation. Background technique [0002] Submarine cables (submarine cables) are divided into submarine power cables and submarine communication cables. With the increasing heating of the marine economy, as an important power transmission carrier, the application of power cables will be increasingly broadened. Submarine cable lines are long and the submarine environment is complex. They are vulnerable to damage from trawler anchors, marine organisms, and even submarine crustal activities. Once a fault occurs, it is difficult to repair and repair, and it is easy to cause interruption of power transmission, resulting in huge safety problems and economic losses. How to realize the pre-diagnosis of current-carrying power cable faults, the pre-report of fault types, and the timely and accurate determination of the fault location a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/18G01R31/08
CPCY04S10/52
Inventor 汪雄海何中杰汪昆陆铃霞张龙王浩
Owner ZHEJIANG UNIV
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