[1]冯绍航,陈静平,陈延信,等.管道水流速对深层U型地热井采热影响的数值模拟研究[J].西安建筑科技大学学报:自然科学版,2012,44(04):586-592.[doi:10.15986/j.1006-7930.2012.04.024]
　FENG Shao-hang,CHEN Jing-ping,CHEN Yan-xin,et al.Numerical simulation study of the relation between water velocity and heat transfer in the deep geothermal well[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2012,44(04):586-592.[doi:10.15986/j.1006-7930.2012.04.024]
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管道水流速对深层U型地热井采热影响的数值模拟研究()
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西安建筑科技大学学报:自然科学版[ISSN:1006-7930/CN:61-1295/TU]

卷:
44
期数:
2012年04期
页码:
586-592
栏目:
出版日期:
2012-08-31

文章信息/Info

Title:
Numerical simulation study of the relation between water velocity and heat transfer in the deep geothermal well
文章编号:
1006-7930(2012)04-0586-07
作者:
冯绍航1; 陈静平1; 陈延信1; 范金禾1; 符国力1; 郭晓明2
(1.西安建筑科技大学材料与矿资学院,陕西 西安 710055; 2. 中国石油集团川庆钻探工程有限公司工程技术研究院,陕西 西安 710018)
Author(s):
FENG Shao-hang1;  CHEN Jing-ping1;  CHEN Yan-xin1;  FAN Jing-he1;  FU Guo-li1;  GUO Xiao-ming2
(1.College of Materials and Mineral Resources, Xian Univ. of Arch. & Tech., Xian 710055, China; 2.Institute of Engineering Techniques , Chuanqing Drilling Engineering Co. Ltd., Xian 710018, China)
关键词:
深层地热井; 传热模型; 数值模拟; 采热功率
Keywords:
deep geothermal well;  heat transfer model;  numerical simulation;  thermal power exploited
分类号:
TK529
DOI:
10.15986/j.1006-7930.2012.04.024
文献标志码:
A
摘要:
深层采热井是一种新型地热利用方式,其主要特点是“采热不采水”,为模拟研究深层采热井的运行状态,以4 000m深U型地热采热井为研究对象,在合理假设的基础上建立了采热井管道内外传热的数学物理模型,模型中考虑了地下深层岩土的温度梯度、岩性变化与地下水的渗流作用等对传热的影响,并编制程序进行了模拟计算.利用实际地热井数据对模型进行验证,结果表明:理论计算温度与实际温度的误差为7.77%,模型合理可靠.模拟计算分析了管道内流速对采热功率、传热半径的影响关系,结果表明:最大采热功率为0.841MW,对应流速为0.75m/s,120d时传热的最大影响半径为15.68m
Abstract:
The deep geothermal well is a new way to utilize geothermal energy, the distinctive characteristic of which is heat quantity exploited under earth without water pumped. In order to study the working state of the deep geothermal well, a model on the deep geothermal well with 4 000meters depth was established. Based on the reasonable assumption, the heat transfer mathematical-physical model between geothermal well and stratum was established. The temperature gradient, lithology and transfusion of underground water were taken into account. A program was written and an analog computation was carried out. The model was tested and verified with an actual geothermal well, and the result shows: with the relative error between calculation temperature and actual temperature at 7.77%,the model is reliable. Moreover, the relationship between the velocity in the well and thermal power exploited, heat transfer radius were calculated and analyzed. The results showed that the largest thermal power exploited was 0.841MW, and the corresponding velocity in the well was 0.75m/s, the longest heat transfer radius at the 120th day 15.68m

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备注/Memo

备注/Memo:
收稿日期:2012-02-04 修改稿日期:2012-07-17
基金项目:陕西省西部建筑科技重点实验室资助项目(2011SZS001)
作者简介:冯绍航(1978.06~),男,四川南充人,讲师,硕士,主要从事热工工程、粉体工程等领域研究.
更新日期/Last Update: 2015-09-01