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采用核电机组原址替代燃煤退役机组的技术路线选择

The Choice of Technical Route to Replace Coal-fired Units with Nuclear Power Units

  • 摘要:
    目的 “双碳”背景下,我国减排压力较大。核能作为一种稳定的近“零碳”能源,是一种良好的替代能源。但目前核电机组与燃煤机组选址要求差距较大,采取何种核电机组替代退役火电机组较为合适,需要分析探讨。
    方法 文章通过分析全球减碳形势、当下我国核电发展的现状及我国新型电力系统构建的现状探讨采用核电机组替代燃煤机组的必要性,从厂址替代、主机参数及用地指标3个方面剖析了核电堆型原址替代火电退役机组的可行性,探讨了采用核电机组原址替代火电退役机组的技术路线方向。
    结果 分析论证表明:高温气冷堆在厂址替代、主机参数及用地指标的替代上具有一定优势。
    结论 采用核电机组原址替代火电退役机组在我国当前电力形势下具有必要性。高温气冷堆是一条合适的替代技术路线方向。文章可为我国“双碳”目标下火核替代的发展提供参考建议。

     

    Abstract:
    Objective Under the background of "carbon peaking and carbon neutrality", China's emission reduction pressure is great, nuclear energy as a stable near "zero carbon" energy, is a good alternative energy. But the current nuclear power units and coal-fired units site requirements gap is large, which nuclear power units to replace decommissioned coal-fired units more appropriate, need to be analyzed and discussed.
    Method By analyzing the global carbon reduction situation, the current development status of nuclear power development in China, and the construction status of new power system in China, the necessity of replacing coal-fired units with nuclear power units was discussed. The feasibility of in-situ replacement of decommissioned coal-fired units by nuclear power reactors was analyzed from three aspects: site replacement, host parameters and land use index. And the technical direction of replacing decommissioned coal-fired units with in-situ nuclear power units was explored.
    Result The analysis and demonstration show that high temperature gas cooled reactor has certain advantages in site replacement, main engine parameters and land use index replacement.
    Conclusion It is necessary to replace decommissioned coal-fired units with nuclear power units in the current power situation in China. High temperature gas cooled reactor (HTGR) is a suitable alternative technology route. The paper can provide reference suggestions for the development of fire nuclear substitution under the "carbon peaking and carbon neutrality" goals in China.

     

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