废弃矿井地热资源利用的研究与发展

Research and Development of Geothermal Resources Utilization in Abandoned Mine

矿井在关闭或废弃后会蕴藏大量的地热资源,而地热资源作为一种可再生的绿色能源,对其充分利用可有效减少煤炭、化石等燃料的使用,并减少CO等温室气体的排放,具有节能环保的特点。首先介绍了废弃矿井地热资源形成的原因及该能源的基本特征。其次,讨论了目前废弃矿井地热资源的开发利用模式,并围绕利用模式中的地热回收系统、供热/制冷系统、储热系统及发电系统进行分析。随后,描述了国内外利用废弃矿井地热资源的典型案例及特点,并阐明了应用中所存在的问题。最后,基于废弃矿井地热资源的利用,总结了已取得的研究成果,揭示了未来该技术领域的发展动态及研究方向。废弃矿井地热资源的有效利用,有利于实现该类型地热资源的推广、开发与使用,为实际工程提供参考,以助力双碳目标的贯彻落实。

A great number of geothermal resoruces are stored in the abandoned or closed mine, and the geothermal resource is a renewable green energy source.Making full use of it can effectively reduce the use of fuels such as coal, fossil or others, and meanwhile the emission of greenhouse gases such as COcan be reduced, and therefore this type of energy has the characteristics of energy saving and environmental protection.This paper firstly introduces booth the reasons for the formation of geothermal resources in abandoned mines and the basic characteristics of this energy.Secondly, it discusses the current development and utilization mode of geothermal resources in abandoned mines, and analyzes some the utilization modes, including the geothermal recovery system, the heating/cooling system, the heat storage system and the power generation system.Then, the typical cases and characteristics of the utilization of geothermal resources at home and abroad are described, and the problems existing in the application are clarified.Finally, the research results that have been obtained are summarized based on the utilization of geothermal resource, and the prospective development trends and research directions of this technology field are revealed.The effective use of geothermal resources in abandoned mines is favorable for the promotion, development and use of this type of geothermal resources, and provides reference for practical projects to facilitate the implementation of the carbon peaking and carbon neutrality goals.