Large-size commercial nuclear power unit based heat and power cogeneration method

Abstract

The invention belongs to the technical field of nuclear power heat supply, and particularly relates to a large-size commercial nuclear power unit based heat and power cogeneration method. The heat and power cogeneration method includes: using energy generated by nuclear fission to a heat a circular flow coolant in a first loop of a nuclear power plant; heating water in a second loop of the nuclear power plant into steam; and allowing part of steam to push a steam turbine to generate power; extracting the other part of steam from the steam turbine to supply heat. The technical problem of environment pollution due to the conventional coal and gas heating plants can be avoided; bled steam from the nuclear power plant is used for providing heat, and then the problem of environment pollution due to the conventional coal and gas heating plants can be prevented; four loops are arranged from the radioactive first loop system of the nuclear power plant to a regional heat supply network user, reasonable radioactive monitoring is performed, and radioactive matters can be prevent from be released to the heat supply network user.

Description

Technical field

[0001] The invention belongs to the technical field of nuclear power heating, and specifically relates to a cogeneration method based on a large-scale commercial nuclear power unit. Background technique

[0002] At present, most of the urban heating plants in northern my country use coal and natural gas as their main fuels. Coal-fired heating plants will cause emissions of dust, sulfides, nitrogen oxides, and carbon dioxide due to coal combustion. These emissions will cause atmospheric pollution, causing haze and the greenhouse effect. Although natural gas heating plants only emit carbon dioxide, carbon dioxide is also one of the main culprits of the greenhouse effect.

[0003] The number of nuclear power plants built and under construction in northern China is increasing. Local governments hope that nuclear power plants can undertake more local public service obligations while producing electricity. The realization of cogeneration of large nuclear power plants is ...

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