Thermal deicing system for extra-high voltage direct current power transmission line
A technology for UHV DC and transmission lines, which is applied in the installation of electrical components, cables, and overhead installations. It can solve problems such as power interruptions in deicing lines and unfavorable power grid stability, so as to ensure stable operation, improve deicing efficiency, The effect of saving water
Active Publication Date: 2020-03-17
STATE GRID CORP OF CHINA +1
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Problems solved by technology
In the prior art, the deicing of the transmission wire is by applying a DC voltage to the transmission wire and short-circuiting the end of the wire, so that the heat released by the large current flowing through the transmission line will melt the ice on the transmission line. When it is iced, the power supply of the deicing line is interrupted, which is not conducive to the stability of the power grid operation
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[0023] Below in conjunction with accompanying drawing, the present invention is further described:
[0024] A thermal deicing system for UHV DC transmission lines provided by the present invention is characterized in that it includes: an unmanned aerial vehicle 1 for carrying thermal cycle equipment, and the unmanned aerial vehicle adopts an existing unmanned aerial vehicle with a load-bearing function , such as the "Tianying" TYW-1 unmanned aerial vehicle developed by Beijing University of Aeronautics and Astronautics, and the Russian company ARDNTechnology SKYF unmanned aerial vehicle, the thermal cycle equipment includes water tank 2, hot water pipe 6, return water pipe 5, pressurization equipment 3 and temperature control equipment 4, the pressurization equipment 3 adopts existing pressurization equipment, such as a circulation pump, the water tank 2 is detachably fixedly connected with the drone 1, and the starting point of the hot water pipe 6 is The beginning end is con...
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The invention provides a thermal deicing system for an extra-high voltage direct current power transmission line. The system comprises an unmanned aerial vehicle, and a thermodynamic cycle device comprises a water tank, a hot water pipe, a water return pipe, a supercharging device and a temperature control device. The starting end of the hot water pipe is connected with a water outlet of the watertank, the terminal end of the hot water pipe is connected with the starting end of the water return pipe, and the terminal of the water return pipe is connected with the circulating water inlet of the water tank after passing through the supercharging device. The supercharging device is used for supercharging the water return pipe, so that a water flow smoothly flows back into the water tank. Thetemperature control device is used for heating the water in the water tank and keeping the water temperature within a preset water temperature range, the unmanned aerial vehicle transports the thermodynamic cycle device to the position near a target power transmission line, and the hot water pipe of the thermodynamic cycle device surrounds the target power transmission line in an arc shape, so that the ice on the surface of the power transmission line is cleared through the thermal radiation of the hot water flowing in the hot water pipe. By arranging the hot water pipe and the water return pipe, the water can be saved, and meanwhile the deicing efficiency of the unmanned aerial vehicle is improved.
Description
technical field [0001] The invention relates to the field of deicing for transmission lines, in particular to a thermal deicing system for UHV direct current transmission lines. Background technique [0002] Transmission lines are easy to be covered with ice in low temperature and other harsh weather environments. Long-term icing will reduce the mechanical and electrical properties of the transmission line and threaten the operation safety of the power grid. After the ice is covered, the weight of the wire will increase. The tower tilts or even collapses, causing the interruption of power supply and bringing inconvenience to people's life and social production. Therefore, in order to ensure the safe operation of the transmission line in the period when it is prone to icing, it is necessary to remove the icing on the transmission line. In the prior art, the deicing of the transmission wire is by applying a DC voltage to the transmission wire and short-circuiting the end of t...
Claims
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Login to View More IPC IPC(8): H02G7/16
CPCH02G7/16
Inventor 李汶江曾湘隆沈红莲陈静唐娟谢希王海飞李金城李毅夏远灿万吨王瑶张满
Owner STATE GRID CORP OF CHINA