中深层地岩热耦合热泵技术在房建工程中的应用实例分析

Case Study on the Application of Thermal Coupling Heat Pump Technology in Middle and Deep Geolith in Housing Construction Projects

介绍了中深层地岩热耦合热泵技术在甘肃张掖某项目中的应用,并与公路房建工程中较常用的超低温空气源热泵技术进行了分析比较。通过两种热源方案的初投资、年运行费用以及碳排放量的计算分析后发现,中深层地岩热耦合热泵技术的初投资明显远高于超低温空气源热泵技术,但年运行费用接近后者的1/2,随着运行年限的增长,这种优势逐渐凸显。从考虑碳排放的角度出发,中深层地岩热泵系统每年可以减少碳排放量2 460.7 t。另外,由于一个取热孔的供热量大约在0.7 MW,仅适用于供暖面积1万m2以上的建筑工程。

This paper introduces the application of the coupled heat pump technology in the middle and deep strata and rocks in a project in Zhangye,Gansu Province,and compares it with the ultra-low temperature air source heat pump technology commonly used in highway housing construction projects.Through the calculation and analysis of the initial investment,annual operating cost and carbon emissions of the two heat source schemes,it is found that the initial investment of the medium-deep geothermal coupling heat pump technology is much higher than that of the ultra-low temperature air source heat pump technology,but the annual operating cost is close to half of the latter,and this advantage is gradually prominent with the increase of operating years.From the point of view of carbon emission,the medium-deep geothermal heat pump system can reduce carbon emissions by 2460.7 t per year,which is close to half of the ultra-low temperature air source heat pump system.In addition,because the heat supply of a hot hole is about 0.7 MW,it is only suitable for building projects with a heating area of over 10,000 square meters.