Floating liquefied natural gas (FLNG) driving system based on nuclear power

Abstract

A floating liquefied natural gas (FLNG) driving system based on nuclear power comprises a steam generation module, a nuclear reactor is arranged in a reactor cabin of the steam generation module, and the nuclear reactor is sequentially connected with a steam generator and a main circulating pump to form a first circulating network; heat of saturated steam generated by the steam generator is sequentially provided for the power generation system, the natural gas liquefaction system, the pump set turbine system, the cabin section heating system, the miscellaneous steam system and the upper oil gas treatment and public system. The defects in the prior art are overcome, heat energy converted from nuclear energy is applied to all the systems in the floating device, all the systems are stable, reliable, energy-saving and environment-friendly, and pollution is reduced. Meanwhile, the medium-temperature seawater obtained after dead steam cooling is applied to a fresh water making system, the fresh water demand of a steam system is met, the medium-temperature seawater is effectively utilized, the heat efficiency of the system is improved, and environmental damage is reduced.

Description

technical field [0001] The invention relates to the technical field of a floating liquefied natural gas plant (FLNG), in particular to a drive system for a floating liquefied natural gas plant (FLNG) based on nuclear power. Background technique [0002] Floating natural gas liquefaction unit (FLNG) is a new type of floating production storage and offloading unit (FPSO) that integrates liquefaction, storage, and loading and unloading of offshore natural gas. FLNG has become a research hotspot in the development of deepwater oil and gas fields and large and medium-sized marginal oil and gas fields. The driving system of FLNG is closely related to FLNG power generation system, natural gas processing system, liquefaction system and storage system, and is the power source of FLNG plant. At present, the main driving methods of FLNG in deep-water oil and gas fields and large and medium-sized marginal oil and gas fields are steam turbine drive and gas turbine drive, both of which us...

AI Technical Summary

Problems solved by technology

At present, the main driving methods of FLNG in deep-water oil and gas fields and large and medium-sized marginal oil and gas fields are steam turbine drive and gas turbine drive, both of which use burning fossil fuels as the energy source, and the fuel consumption is large

Taking the FLNG plant with an annual output of 2 million tons as an example, the annual gas consumption is 19 million cubic meters and 14 million cubic meters respectively, and the annual gas consumption cost is about 50 million yuan. While consuming a large amount of energy, it also brings harm to the environment came the huge pollution

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