摘要
浅层地热能资源以其高效和环保的特点,近年来在中国得到了广泛的应用。地质条件、浅层地温场特征、岩土热物性特征等参数,是影响浅层地热能开发利用的重要参数。笔者在阐述浅层地热能开发利用条件的基础上,结合全国省会城市浅层地热能调查评价成果,对浅层地热能开发利用适宜性和资源潜力进行了评价。结果表明,在我国陆区范围内,恒温带温度受太阳辐射影响最大,恒温带顶板埋深与气温变化趋势相反,岩土体导热系数受岩性影响明显。中国浅层地热能资源主要用于建筑物供暖和制冷。我国31个省会城市80%的土地面积适宜利用浅层地热能,浅层地热能资源每年可开采量折合标准煤2.8亿t,可为供暖和制冷提供丰富的能源储备。按利用方式、需求程度将我国浅层地热能开发分为全年集中利用区、全年分散利用区、分散式冬季供暖区和分散式夏季制冷区4类。浅层地热能开发利用对推动中国绿色、低碳、节能型城市化发展,解决京津冀地区冬季雾霾和南方城市冬季供暖问题具有重要意义。
Due to the superiority of high energy efficiency and environmental friendliness,shallow geothermal resources have been widely applied in recent years in China.Geological conditions,characteristics of shallow geotemperature field and thermophysical parameters of rocks and soils are important parameters for shallow geothermal resources.Based on relevant research on nationwide investigation and evaluation of shallow geothermal energy resources in31provincial capital cities in China,the authors evaluated the characteristics,resources and regional development planning of shallow geothermal resources in China.The results show that,in constant temperature zone,feature temperature is mostly affected by solar radiation,and the trend of buried depth is opposite to temperature change.What’s more,thermal conductivity of soils and rocks is obviously influenced by lithology.The most important application of shallow geothermal resources is for heating and cooling in buildings.Over80%of the provincial capital cities are suitable for shallow geothermal utilization and annual exploitable shallow geothermal resources of31provincial capital cities are equivalent to280million tons of standard coal,which is abundant for heating and cooling.Considering the way of utilization and the level of demand,the authors divided whole China into four types of areas,i.e.,centralized utilization area(both heating and cooling),distributed utilization area(both heating and cooling),distributed utilization area only for heating and distributed utilization area only for cooling.The development and utilization of shallow geothermal resources are of great significance for promoting the development of China's green,low-carbon and energy-saving urbanization and can also solve the problem of winter smog in the Beijing-Tianjin-Hebei region and satisfy the demand of heating in winter in cities of southern China..
作者
王婉丽
王贵玲
朱喜
刘志明
WANG Wanli;WANG Guiling;ZHU Xi;LIU Zhiming(Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shi jiazhuang 050061,China;School of environment studies, China University of Geosciences, Wuhan 430074,China)
出处
《中国地质》
CAS
CSCD
北大核心
2017年第6期1062-1073,共12页
Geology in China
基金
国家自然科学基金青年基金项目(41302189
41672249)
中国地质科学院水文地质环境地质研究所基本科研业务费专项经费(SK201501)
中国地质调查局国土资源大调查项目(12120113078100)联合资助~~
关键词
浅层地热能
浅层地温场
导热系数
适宜性评价
资源评价
shallow geothermal resources
shallow geotemperature filed
thermal conductivity
suitable assessment
resources evaluation
作者简介
王婉丽，女，1985年生，博士生，助理研究员，水文地质学专业，主要从事水文地质及浅层地温能方面研究；wanliwang2010@163.com。;通讯作者：王贵玲，男，1964 年生，博士，研究员，长期从事水文地质和地热地质研究工作；guilingw@163.com。
