Efficient nuclear energy comprehensive utilization system capable of realizing flexible peak regulation of nuclear power station

Abstract

The invention discloses an efficient nuclear energy comprehensive utilization system capable of realizing flexible peak regulation of a nuclear power station. The nuclear energy comprehensive utilization system comprises a helium-steam combined power generation system, a high-temperature solid oxide water electrolysis hydrogen production system and a seawater desalination system; and the helium-steam combined power generation system is used for generating power through a high-temperature helium Brayton cycle and a steam Rankine cycle and outputting steam to the high-temperature solid oxide water electrolysis hydrogen production system, and the high-temperature solid oxide water electrolysis hydrogen production system is used for electrolyzing the steam to generate hydrogen, oxygen and water vapour and inputting the hydrogen, the oxygen and the water vapour into the seawater desalination system for heat recovery and utilization. According to a principle of gradient utilization of energy, the power generation system, the high-temperature solid oxide water electrolysis hydrogen production system and the seawater desalination system are coupled, flexible adjustment of power generation loads can be achieved, and the high efficiency and flexibility of the whole unit are improved.

Description

technical field [0001] The invention relates to the field of nuclear energy comprehensive utilization, in particular to a nuclear energy comprehensive utilization system capable of realizing flexible peak regulation of nuclear power plants. [0002] technical background [0003] As a clean, efficient and high-quality energy, nuclear energy accounts for an increasing proportion of my country's primary energy consumption year by year, and has become an important part of my country's diversified energy supply system. According to China's goal of achieving carbon peak and carbon neutrality, the national energy structure will undergo great changes, new energy will develop rapidly, and the use of traditional fossil energy will be reduced. However, new energy generation such as wind energy and solar energy has great instability and has a great impact on the power grid. It must rely on some energy generation forms with peak-shaving capabilities as the basic load. The variable load c...

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Problems solved by technology

The reactor used in this invention is a conventional third-generation pressurized water reactor system, which further increases the steam temperature by means of electric heating, transforms high-quality energy into low-quality energy, and seriously reduces the energy utilization efficiency of the system

In addition, the heat carried by the hydrogen and oxygen from the high temperature solid electrolysis cell is not recycled

The inventive system realizes the flexible peak shaving of nuclear power plants, but does not carry out cascading utilization according to the quality of energy

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