United long-range transmission system for liquefied natural gas and high-temperature superconducting electric energy

Abstract

The invention provides a united long-range transmission system for liquefied natural gas and high-temperature superconducting electric energy, comprising an LNG (liquefied natural gas) delivery pump, wherein the LNG delivery pump is connected with an LNG input pipe, output of the LNG delivery pump is divided into two parts, one part is connected with a first superconducting cable terminal by a pipeline, the other part is communicated with an outer pipe of an LNG delivery pipe by the pipeline, an LNG outlet of the first superconducting cable terminal is communicated with an inner pipe of the LNG delivery pipe, alternating current is converted by an AC/ DC (alternating current/ direct current) convertor station and then the converted current is connected with the first superconducting cable terminal, the first superconducting cable terminal is connected with a high-temperature superconducting cable of the LNG delivery pipe, the high-temperature superconducting cable is connected with a second superconducting cable terminal, the inner pipe of the LNG delivery pipe is connected with the second superconducting cable terminal, the second superconducting cable terminal is communicated with the outer pipe of the LNG delivery pipe and is communicated with the an LNG output pipe, and the second superconducting cable terminal is connected with a DC output line. According to the system, the liquefied natural gas and the electric energy can be transported jointly, the gas transmission capacity can be improved, and the transmission losses can be reduced, so that the system is high in economic benefit and social benefit.

Description

technical field [0001] The invention belongs to the energy-saving field of natural gas and electric power transmission, and relates to a combined remote transmission system of liquefied natural gas and high-temperature superconducting energy. Background technique [0002] In recent years, the technology of onshore long-distance transmission of natural gas in the form of liquefied natural gas (LNG) has attracted much attention. Data show that it is more advantageous to transport long-distance natural gas in the form of LNG. The density of LNG is 600 times that of natural gas under standard conditions. Compared with the same volume of natural gas transported by pipeline, the diameter of LNG delivery pipe is much smaller. The cost of LNG pumping station is lower than that of compressor station, and the energy consumption is lower than that of compressed gas. The energy consumption of the station is several times lower. Although LNG transportation pipelines must use expensive ...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of the above-mentioned prior art, the object of the present invention is to provide a combined long-distance transmission system of liquefied natural gas and high-temperature superconducting energy, which utilizes the lo

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