华电技术 ›› 2021, Vol. 43 ›› Issue (11): 15-24.doi: 10.3969/j.issn.1674-1951.2021.11.003

• 规模化利用技术 • 上一篇    下一篇

地热能供热技术的应用现状及发展趋势

王贵玲1(), 杨轩2, 马凌3,4,*(), 周佳琦2, 沈国华5, 王婉丽1   

  1. 1.中国地质科学院水文地质环境地质研究所,石家庄 050061
    2.天津大学 中低温热能高效利用教育部重点实验室,天津 300350
    3.海信家电集团股份有限公司,山东 青岛 266000
    4.海信(山东)空调有限公司,山东 青岛 266100
    5.天津市华亭科技发展有限公司,天津 300202
  • 收稿日期:2021-09-22 修回日期:2021-10-15 出版日期:2021-11-25 发布日期:2021-11-16
  • 通讯作者: 马凌
  • 作者简介:王贵玲(1964—),男,河北邢台人,研究员,博士,从事水文地质、地热地质及环境地质相关研究工作(E-mail: guilingw@163.com)。
  • 基金资助:
    天津市科技支撑重点项目(17YFZCGX00580)

Status quo and prospects of geothermal energy in heat supply

WANG Guiling1(), YANG Xuan2, MA Ling3,4,*(), ZHOU Jiaqi2, SHEN Guohua5, WANG Wanli1   

  1. 1. Institute of Hydrogeology and Environmental Geology,Chinese Academy of Geological Sciences,Shijiazhuang 050061,China
    2. Key Laboratory of Efficient Utilization of Low and Medium Grade Energy(Tianjin University),MOE,Tianjin 300350,China
    3. Hisense Home Appliance Group Company Limited,Qingdao 266000,China
    4. Hisense(Shandong) Air Conditioning Company Limited,Qingdao 266100,China
    5. Tianjin Huating Technology Development Company Limited,Tianjin 300202,China
  • Received:2021-09-22 Revised:2021-10-15 Online:2021-11-25 Published:2021-11-16
  • Contact: MA Ling

摘要:

目前建筑行业能耗居高不下,2019年全球建筑运行碳排放占到了总CO2排放的28%。如今,建筑节能降耗成为了我国乃至世界能源格局面临的一大问题。为了探究地热资源供热潜力及其在“双碳”目标中的价值体现,简述了我国地热资源禀赋及分布特点,给出了不同地区适用的地热供能模式。聚焦节能高效的地埋管地源热泵技术,通过工程案例分析,得出了浅层和中深层的不同供能特点。根据近5年发展推测,到2030年地源热泵将覆盖我国19.25%的城市供暖面积,具有很大的发展潜力。在实际应用和未来发展方面,从探热-采热-用热的不同角度,提出了多种新型地埋管换热器和直膨式地源热泵系统及跨季蓄能、多能互补的综合能源利用模式,以提高可再生能源利用率,减少化石能源的使用,降低建筑能耗。

关键词: 地热能, 地源热泵, 建筑供能, 工程应用, 碳排放, “双碳”目标, 多能互补, 供暖

Abstract:

The energy consumption in construction industry stays high.In 2019,global carbon emissions from construction industry accounted for 28% of the total CO2 emissions.Nowadays,energy conservation and emission reduction for buildings has become a major problem for energy structure of China and even the world.In order to explore the heating potential of geothermal resources and its value in achieving emission peak and carbon neutrality,the endowment and distribution characteristics of geothermal resources in China is briefly described and the geothermal energy utilization modes suitable for different regions are obtained.Energy-saving and high-efficiency pipe burying ways for ground source heat pumps(GSHPs)have drawn great attention.Based on engineering cases,different heat-supply characteristics of shallow and medium-deep geothermal energy have been analyzed.According to the development in the past five years,the GSHP is of great development potential for being able to meet 19.25% of China's building energy supply demand by 2030. In terms of practical application and prospects,a variety of new underground heat exchangers,direct-expansion GSHPs,cross-season energy storage and multi-energy complementary geothermal energy utilization modes are proposed by considering the geothermal detection,geothermal extraction and geothermal utilization.These technologies can increase the utilization rate of renewable energy,reduce the fossil energy consumption and lower the energy consumption of buildings.

Key words: geothermal energy, ground source heat pump, energy supply for buildings, engineering application, carbon emissions, carbon peaking and carbon neutrality, multi-energy complementary, heating

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