Combined power-generation device of nuclear power and alkali metal thermoelectricity conversion device

Abstract

The invention provides a combined power-generation device of a nuclear power and alkali metal thermoelectricity conversion device. The invention is characterized in that water supply from a secondary circuit side of a steam generator of a nuclear reactor absorbs heat brought out from the reactor by a first circuit alkali metal working medium; the heat is changed into steam in a steam generator; the steam outflows a containment of the nuclear reactor by a main steam pipe from an outlet of the top of the generator, and then enters into a heat exchanger in the interior of a high-temperature phase change heat accumulator; the heat transmission material of the outer wall of the heat exchanger transmits the heat into the heat storage material in the high-temperature phase change heat accumulator; the absorption heat of the heat storage material reaches a heat output interface of the heat accumulator; an alkali metal thermoelectricity direct converter is connected with the heat output interface of the heat accumulator by the heat output interface thereof; the heat enters into the interior of the alkali metal thermoelectricity direct converter to cause the alkali metal thermoelectricity direct converter to work and generate electric energy supplying load. The invention uses the heat emitted by the nuclear reactor as the heat source of the alkali metal thermoelectricity direct converter; the power-generation device is integrated by the nuclear reactor and the alkali metal thermoelectricity direct converter.

Description

(1) Technical field [0001] The invention relates to an energy utilization system in the field of power energy, in particular to a power generation device which uses the heat released by a nuclear reactor as a heat source for an alkali metal thermoelectric direct converter and integrates the two. (2) Background technology [0002] A nuclear reactor, also known as an atomic reactor or reactor, is a device equipped with nuclear fuel to achieve a large-scale controllable fission chain reaction. The working principle of a nuclear reactor is this: Atoms are composed of atomic nuclei and extranuclear electrons. The nucleus of an atom consists of protons and neutrons. When the nucleus of uranium 235 is bombarded by external neutrons, one nucleus will absorb a neutron and split into two nuclei with smaller masses, releasing 2 to 3 neutrons at the same time. The neutrons produced by this fission bombard another uranium-235 nucleus, causing new fission. This continuous process is a ...

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