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Abstract

The group of inventions relates to nuclear techniques and to power industry. The nuclear power plant contains a nuclear reactor (1) cooled by liquid metal, for example lead. Heated-up liquid metal is cooling in heat exchanger <> (3). This heat exchanger is embodied as not-mixing heat exchanger. The pump (2) moves cooled liquid metal through the filters into the reactor (1). The compressor (4) moves gas through heat exchanger <> (3) into gas turbines (8, 9, 10, 22, 23, 24). After gas turbines this gas vaporizes and overheats the water in heat exchangers <> (5, 6, 7) and moves back to compressor (3). Produced steam moves the steam turbines (12, 13), condenses into the water by means of condenser (15) and circulation pump (16) and then is moved by the pumps (17, 20) back to heat exchangers <> (5, 6, 7). At least one of gas turbines (22, 23, 24) is coupled by shaft with at least one of said pumps (16, 17, 20), and in steam turbines (12, 13) the channels are embodied for the heating medium. Said channels are embodied in the directing device of the steam turbine (12, 13) and/or in driving wheels of the steam turbine (12, 13). Said channels are series connected among them in a direction of a steam course in the turbine (12, 13). The gas after gas turbines (8, 9, 10, 22, 23, 24) is used besides heat exchangers (5, 6, 7) as said heating medium and after that moves into compressor (3). The nitrogen, air, helium, carbon dioxide or their mix are used as said gas. Said group of inventions makes it possible to increase the heat efficiency of nuclear power plant with a reactor cooled by liquid metal at least up to 50% and to preserve high heat efficiency of this plant at frequent multiple reduction of used capacity of this plant, for example at nights.

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First Claim