Fused salt energy storage coupling power generation system for fusion reactor and power generation method

Abstract

The invention provides a fused salt energy storage coupling power generation system for a fusion reactor and a power generation method. The fused salt energy storage coupling power generation system comprises a primary loop, an energy storage loop and a secondary loop. The primary loop comprises a fusion reactor and a steam generator connected to a helium outlet of the fusion reactor, and a gas outlet of the steam generator is connected with a gas inlet of the fusion reactor. A steam outlet of the steam generator is connected with the secondary loop. The energy storage loop comprises a heat storage heat exchanger connected with the helium outlet of the fusion reactor, and a hot molten salt tank and a cold molten salt tank which are connected with the heat storage heat exchanger at the same time. The fused salt energy storage coupling power generation system for the fusion reactor is high in operation continuity, safety and stability, so that the fusion reactor has continuous and stable output capacity, the stability of steam parameters of the secondary loop is ensured, continuous and stable output of a steam turbine generator is further ensured, and the power generation quality is improved.

Description

technical field [0001] The invention relates to the application field of nuclear energy technology, in particular to a molten salt energy storage coupled power generation system and a power generation method for a fusion reactor. Background technique [0002] Fusion reactor, that is, nuclear fusion reactor, is a new type of nuclear reactor that combines two atomic nuclei with smaller mass into a new nucleus with larger mass under the conditions of high temperature, high pressure and high density, and releases huge energy during the reaction. Nuclear fusion (nuclear fusion), also known as nuclear fusion, fusion reaction, fusion reaction or thermonuclear reaction. Nucleus refers to atoms with small mass, mainly deuterium / tritium. Under certain conditions (such as ultra-high temperature, high pressure, high density-triple product conditions), only at extremely high temperature and pressure can electrons outside the nucleus be released. Get rid of the shackles of the nucleus, l...

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Problems solved by technology

[0011] In the fusion reactor coupling power generation technology using Tokmak, the energy output characteristics of the fusion reactor are difficult to match the operation requirements of conventional generator sets, and cannot meet the grid stability requirements

Moreover, it is difficult to fundamentally change the pulsed output characteristics of the fusion reactor (Tokomak) within a certain period of time.

And it has the following disadvantages: the fusion reactor has the characteristic of intermittent energy output, which makes the steam turbine generator unable to guarantee continuous and stable output, and the power generation quality is poor; the intermittent output of the fusion reactor makes the steam parameters of the secondary circuit fluctuate greatly, and the conventional steam turbine The generator set is difficult to apply and requires special design or modification, resulting in high equipment costs

Moreover, this long-term running state will affect the safe operation of the turbo-generator, form a huge impact on the power generation equipment, reduce the life of the equipment, and also cause the operation and maintenance management costs of the equipment in the later period; the periodic output of the fusion reactor, and the power generation load of the generator set With periodic changes, this also forms a huge shock to the power grid, which may cause grid instability

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